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Merge branch 'deps'

This commit is contained in:
Chris Bednarski 2016-02-05 14:22:00 -08:00
parent 2d749d8c55 f5777bca7b
commit 58ebd6a9fd
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83
CONTRIBUTING.md
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@ -53,35 +53,78 @@ it raises the chances we can quickly merge or address your contributions.
If you have never worked with Go before, you will have to complete the
following steps in order to be able to compile and test Packer.
1. Install Go. Make sure the Go version is at least Go 1.4. Packer will not work with anything less than
Go 1.4. On a Mac, you can `brew install go` to install Go 1.4.
1. [Download](https://golang.org/dl) and install Go. Make sure your Go version
is at least Go 1.5. Packer _may_ work with older versions of Go but these
are not supported.
2. Set and export the `GOPATH` environment variable and update your `PATH`.
For example, you can add to your `.bash_profile`.
2. Set and export the `GOPATH` environment variable and update your `PATH`. For
example, you can add to your `.bash_profile`. If you're using Go 1.5 also
set `GO15VENDOREXPERIMENT`. This is not necessary for Go 1.6 and up.
```
export GOPATH=$HOME/Documents/golang
export GO15VENDOREXPERIMENT=1
export PATH=$PATH:$GOPATH/bin
```
3. Install and build `gox` with
3. Download the Packer source (and its dependencies) by running `go get
github.com/mitchellh/packer`. This will download the Packer source to
`$GOPATH/src/github.com/mitchellh/packer`.
```
go get github.com/mitchellh/gox
cd $GOPATH/src/github.com/mitchellh/gox
go build
```
4. When working on packer `cd $GOPATH/src/github.com/mitchellh/packer` so you
can run make and easily access other files.
4. Download the Packer source (and its dependencies) by running
`go get github.com/mitchellh/packer`. This will download the Packer
source to `$GOPATH/src/github.com/mitchellh/packer`.
5. Make your changes to the Packer source. You can run `make` in
`$GOPATH/src/github.com/mitchellh/packer` to run tests and build the packer
binary. Any compilation errors will be shown when the binaries are
rebuilding.
5. Make your changes to the Packer source. You can run `make` from the main
source directory to recompile all the binaries. Any compilation errors
will be shown when the binaries are rebuilding.
6. Test your changes by running `make test` and then running
`$GOPATH/src/github.com/mitchellh/packer/bin/packer` to build a machine.
6. After running `make` successfully, use
`$GOPATH/src/github.com/mitchellh/packer/bin/packer` to build a machine and
verify your changes work.
7. If everything works well and the tests pass, run `go fmt` on your code
before submitting a pull request.
before submitting a pull-request.
### Tips for Working on Packer
#### Godeps
If you are submitting a change that requires a change in dependencies, DO NOT update the `vendor/` folder. This keeps the PR smaller and easier to review. Instead, please indicate which upstream has changed and which version we should be using. You _may_ do this using `Godeps/Godeps.json` but this is not required.
#### Running Unit Tests
You can run tests for individual packages using commands like this:
$ make test TEST=./builder/amazon/...
#### Running Acceptance Tests
Packer has [acceptance tests](https://en.wikipedia.org/wiki/Acceptance_testing)
for various builders. These typically require an API key (AWS, GCE), or
additional software to be installed on your computer (VirtualBox, VMware).
If you're working on a feature of a builder or a new builder and want verify it
is functioning (and also hasn't broken anything else), we recommend running the
acceptance tests.
**Warning:** The acceptance tests create/destroy/modify *real resources*, which
may incur real costs in some cases. In the presence of a bug, it is technically
possible that broken backends could leave dangling data behind. Therefore,
please run the acceptance tests at your own risk. At the very least, we
recommend running them in their own private account for whatever builder you're
testing.
To run the acceptance tests, invoke `make testacc`:
$ make testacc TEST=./builder/amazon/ebs
...
The `TEST` variable lets you narrow the scope of the acceptance tests to a
specific package / folder. The `TESTARGS` variable is recommended to filter
down to a specific resource to test, since testing all of them at once can
sometimes take a very long time.
Acceptance tests typically require other environment variables to be set for
things such as access keys. The test itself should error early and tell you
what to set, so it is not documented here.

321
Godeps/Godeps.json generated Normal file
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@ -0,0 +1,321 @@
{
"ImportPath": "github.com/mitchellh/packer",
"GoVersion": "go1.5",
"Deps": [
{
"ImportPath": "github.com/ActiveState/tail",
"Comment": "v0-41-g1a0242e",
"Rev": "1a0242e795eeefe54261ff308dc685f7d29cc58c"
},
{
"ImportPath": "github.com/armon/go-radix",
"Rev": "4239b77079c7b5d1243b7b4736304ce8ddb6f0f2"
},
{
"ImportPath": "github.com/aws/aws-sdk-go/aws",
"Comment": "v1.1.0-15-ga170e9c",
"Rev": "a170e9cb76475a0da7c0326a13cc2b39e9244b3b"
},
{
"ImportPath": "github.com/aws/aws-sdk-go/private/endpoints",
"Comment": "v1.1.0-15-ga170e9c",
"Rev": "a170e9cb76475a0da7c0326a13cc2b39e9244b3b"
},
{
"ImportPath": "github.com/aws/aws-sdk-go/private/protocol",
"Comment": "v1.1.0-15-ga170e9c",
"Rev": "a170e9cb76475a0da7c0326a13cc2b39e9244b3b"
},
{
"ImportPath": "github.com/aws/aws-sdk-go/private/signer/v4",
"Comment": "v1.1.0-15-ga170e9c",
"Rev": "a170e9cb76475a0da7c0326a13cc2b39e9244b3b"
},
{
"ImportPath": "github.com/aws/aws-sdk-go/private/waiter",
"Comment": "v1.1.0-15-ga170e9c",
"Rev": "a170e9cb76475a0da7c0326a13cc2b39e9244b3b"
},
{
"ImportPath": "github.com/aws/aws-sdk-go/service/ec2",
"Comment": "v1.1.0-15-ga170e9c",
"Rev": "a170e9cb76475a0da7c0326a13cc2b39e9244b3b"
},
{
"ImportPath": "github.com/aws/aws-sdk-go/service/sts",
"Comment": "v1.1.0-15-ga170e9c",
"Rev": "a170e9cb76475a0da7c0326a13cc2b39e9244b3b"
},
{
"ImportPath": "github.com/bgentry/speakeasy",
"Rev": "36e9cfdd690967f4f690c6edcc9ffacd006014a0"
},
{
"ImportPath": "github.com/digitalocean/godo",
"Comment": "v0.9.0-24-g6ca5b77",
"Rev": "6ca5b770f203b82a0fca68d0941736458efa8a4f"
},
{
"ImportPath": "github.com/dylanmei/iso8601",
"Rev": "2075bf119b58e5576c6ed9f867b8f3d17f2e54d4"
},
{
"ImportPath": "github.com/dylanmei/winrmtest",
"Rev": "025617847eb2cf9bd1d851bc3b22ed28e6245ce5"
},
{
"ImportPath": "github.com/go-ini/ini",
"Comment": "v1.8.6",
"Rev": "afbd495e5aaea13597b5e14fe514ddeaa4d76fc3"
},
{
"ImportPath": "github.com/golang/protobuf/proto",
"Rev": "b982704f8bb716bb608144408cff30e15fbde841"
},
{
"ImportPath": "github.com/google/go-querystring/query",
"Rev": "2a60fc2ba6c19de80291203597d752e9ba58e4c0"
},
{
"ImportPath": "github.com/hashicorp/atlas-go/archive",
"Comment": "20141209094003-90-g0008886",
"Rev": "0008886ebfa3b424bed03e2a5cbe4a2568ea0ff6"
},
{
"ImportPath": "github.com/hashicorp/atlas-go/v1",
"Comment": "20141209094003-90-g0008886",
"Rev": "0008886ebfa3b424bed03e2a5cbe4a2568ea0ff6"
},
{
"ImportPath": "github.com/hashicorp/errwrap",
"Rev": "7554cd9344cec97297fa6649b055a8c98c2a1e55"
},
{
"ImportPath": "github.com/hashicorp/go-checkpoint",
"Rev": "e4b2dc34c0f698ee04750bf2035d8b9384233e1b"
},
{
"ImportPath": "github.com/hashicorp/go-cleanhttp",
"Rev": "ce617e79981a8fff618bb643d155133a8f38db96"
},
{
"ImportPath": "github.com/hashicorp/go-multierror",
"Rev": "d30f09973e19c1dfcd120b2d9c4f168e68d6b5d5"
},
{
"ImportPath": "github.com/hashicorp/go-version",
"Rev": "7e3c02b30806fa5779d3bdfc152ce4c6f40e7b38"
},
{
"ImportPath": "github.com/hashicorp/yamux",
"Rev": "df949784da9ed028ee76df44652e42d37a09d7e4"
},
{
"ImportPath": "github.com/hpcloud/tail/ratelimiter",
"Comment": "v0-41-g1a0242e",
"Rev": "1a0242e795eeefe54261ff308dc685f7d29cc58c"
},
{
"ImportPath": "github.com/hpcloud/tail/util",
"Comment": "v0-41-g1a0242e",
"Rev": "1a0242e795eeefe54261ff308dc685f7d29cc58c"
},
{
"ImportPath": "github.com/hpcloud/tail/watch",
"Comment": "v0-41-g1a0242e",
"Rev": "1a0242e795eeefe54261ff308dc685f7d29cc58c"
},
{
"ImportPath": "github.com/hpcloud/tail/winfile",
"Comment": "v0-41-g1a0242e",
"Rev": "1a0242e795eeefe54261ff308dc685f7d29cc58c"
},
{
"ImportPath": "github.com/jmespath/go-jmespath",
"Comment": "0.2.2-2-gc01cf91",
"Rev": "c01cf91b011868172fdcd9f41838e80c9d716264"
},
{
"ImportPath": "github.com/kardianos/osext",
"Rev": "29ae4ffbc9a6fe9fb2bc5029050ce6996ea1d3bc"
},
{
"ImportPath": "github.com/klauspost/compress/flate",
"Rev": "f86d2e6d8a77c6a2c4e42a87ded21c6422f7557e"
},
{
"ImportPath": "github.com/klauspost/cpuid",
"Rev": "349c675778172472f5e8f3a3e0fe187e302e5a10"
},
{
"ImportPath": "github.com/klauspost/crc32",
"Rev": "999f3125931f6557b991b2f8472172bdfa578d38"
},
{
"ImportPath": "github.com/klauspost/pgzip",
"Rev": "47f36e165cecae5382ecf1ec28ebf7d4679e307d"
},
{
"ImportPath": "github.com/kr/fs",
"Rev": "2788f0dbd16903de03cb8186e5c7d97b69ad387b"
},
{
"ImportPath": "github.com/masterzen/simplexml/dom",
"Rev": "95ba30457eb1121fa27753627c774c7cd4e90083"
},
{
"ImportPath": "github.com/masterzen/winrm/soap",
"Rev": "54ea5d01478cfc2afccec1504bd0dfcd8c260cfa"
},
{
"ImportPath": "github.com/masterzen/winrm/winrm",
"Rev": "54ea5d01478cfc2afccec1504bd0dfcd8c260cfa"
},
{
"ImportPath": "github.com/masterzen/xmlpath",
"Rev": "13f4951698adc0fa9c1dda3e275d489a24201161"
},
{
"ImportPath": "github.com/mattn/go-isatty",
"Rev": "56b76bdf51f7708750eac80fa38b952bb9f32639"
},
{
"ImportPath": "github.com/mitchellh/cli",
"Rev": "5c87c51cedf76a1737bf5ca3979e8644871598a6"
},
{
"ImportPath": "github.com/mitchellh/go-fs",
"Rev": "a34c1b9334e86165685a9449b782f20465eb8c69"
},
{
"ImportPath": "github.com/mitchellh/go-homedir",
"Rev": "d682a8f0cf139663a984ff12528da460ca963de9"
},
{
"ImportPath": "github.com/mitchellh/go-vnc",
"Rev": "723ed9867aed0f3209a81151e52ddc61681f0b01"
},
{
"ImportPath": "github.com/mitchellh/iochan",
"Rev": "87b45ffd0e9581375c491fef3d32130bb15c5bd7"
},
{
"ImportPath": "github.com/mitchellh/mapstructure",
"Rev": "281073eb9eb092240d33ef253c404f1cca550309"
},
{
"ImportPath": "github.com/mitchellh/multistep",
"Rev": "162146fc57112954184d90266f4733e900ed05a5"
},
{
"ImportPath": "github.com/mitchellh/panicwrap",
"Rev": "a1e50bc201f387747a45ffff020f1af2d8759e88"
},
{
"ImportPath": "github.com/mitchellh/prefixedio",
"Rev": "6e6954073784f7ee67b28f2d22749d6479151ed7"
},
{
"ImportPath": "github.com/mitchellh/reflectwalk",
"Rev": "eecf4c70c626c7cfbb95c90195bc34d386c74ac6"
},
{
"ImportPath": "github.com/nu7hatch/gouuid",
"Rev": "179d4d0c4d8d407a32af483c2354df1d2c91e6c3"
},
{
"ImportPath": "github.com/packer-community/winrmcp/winrmcp",
"Rev": "3d184cea22ee1c41ec1697e0d830ff0c78f7ea97"
},
{
"ImportPath": "github.com/pierrec/lz4",
"Rev": "383c0d87b5dd7c090d3cddefe6ff0c2ffbb88470"
},
{
"ImportPath": "github.com/pierrec/xxHash/xxHash32",
"Rev": "5a004441f897722c627870a981d02b29924215fa"
},
{
"ImportPath": "github.com/pkg/sftp",
"Rev": "e84cc8c755ca39b7b64f510fe1fffc1b51f210a5"
},
{
"ImportPath": "github.com/rackspace/gophercloud",
"Comment": "v1.0.0-774-g680aa02",
"Rev": "680aa02616313d8399abc91f17a444cf9292f0e1"
},
{
"ImportPath": "github.com/satori/go.uuid",
"Rev": "d41af8bb6a7704f00bc3b7cba9355ae6a5a80048"
},
{
"ImportPath": "github.com/tent/http-link-go",
"Rev": "ac974c61c2f990f4115b119354b5e0b47550e888"
},
{
"ImportPath": "github.com/ugorji/go/codec",
"Rev": "646ae4a518c1c3be0739df898118d9bccf993858"
},
{
"ImportPath": "golang.org/x/crypto/curve25519",
"Rev": "1f22c0103821b9390939b6776727195525381532"
},
{
"ImportPath": "golang.org/x/crypto/ssh",
"Rev": "1f22c0103821b9390939b6776727195525381532"
},
{
"ImportPath": "golang.org/x/net/context",
"Rev": "6ccd6698c634f5d835c40c1c31848729e0cecda1"
},
{
"ImportPath": "golang.org/x/net/html",
"Rev": "6ccd6698c634f5d835c40c1c31848729e0cecda1"
},
{
"ImportPath": "golang.org/x/oauth2",
"Rev": "8a57ed94ffd43444c0879fe75701732a38afc985"
},
{
"ImportPath": "golang.org/x/sys/unix",
"Rev": "50c6bc5e4292a1d4e65c6e9be5f53be28bcbe28e"
},
{
"ImportPath": "google.golang.org/api/compute/v1",
"Rev": "ddff2aff599105a55549cf173852507dfa094b7f"
},
{
"ImportPath": "google.golang.org/api/gensupport",
"Rev": "ddff2aff599105a55549cf173852507dfa094b7f"
},
{
"ImportPath": "google.golang.org/api/googleapi",
"Rev": "ddff2aff599105a55549cf173852507dfa094b7f"
},
{
"ImportPath": "google.golang.org/appengine",
"Rev": "6bde959377a90acb53366051d7d587bfd7171354"
},
{
"ImportPath": "google.golang.org/cloud/compute/metadata",
"Rev": "5a3b06f8b5da3b7c3a93da43163b872c86c509ef"
},
{
"ImportPath": "google.golang.org/cloud/internal",
"Rev": "5a3b06f8b5da3b7c3a93da43163b872c86c509ef"
},
{
"ImportPath": "gopkg.in/fsnotify.v1",
"Comment": "v1.2.9",
"Rev": "8611c35ab31c1c28aa903d33cf8b6e44a399b09e"
},
{
"ImportPath": "gopkg.in/tomb.v1",
"Rev": "dd632973f1e7218eb1089048e0798ec9ae7dceb8"
},
{
"ImportPath": "gopkg.in/xmlpath.v2",
"Rev": "860cbeca3ebcc600db0b213c0e83ad6ce91f5739"
}
]
}

5
Godeps/Readme generated Normal file
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@ -0,0 +1,5 @@
This directory tree is generated automatically by godep.
Please do not edit.
See https://github.com/tools/godep for more information.

48
Makefile
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@ -1,14 +1,14 @@
TEST?=./...
TEST?=$(shell go list ./... | grep -v vendor)
# Get the current full sha from git
GITSHA:=$(shell git rev-parse HEAD)
# Get the current local branch name from git (if we can, this may be blank)
GITBRANCH:=$(shell git symbolic-ref --short HEAD 2>/dev/null)
default: test dev
default: deps generate test dev
ci: deps test
release: updatedeps test releasebin
release: deps test releasebin
bin: deps
@echo "WARN: 'make bin' is for debug / test builds only. Use 'make release' for release builds."
@ -22,7 +22,10 @@ releasebin: deps
@sh -c "$(CURDIR)/scripts/build.sh"
deps:
go get -v -d ./...
go get github.com/mitchellh/gox
go get golang.org/x/tools/cmd/stringer
go get golang.org/x/tools/cmd/vet
@echo "INFO: Packer deps are managed by godep. See CONTRIBUTING.md"
dev: deps
@grep 'const VersionPrerelease = ""' version.go > /dev/null ; if [ $$? -eq 0 ]; then \
@ -34,13 +37,12 @@ dev: deps
# generate runs `go generate` to build the dynamically generated
# source files.
generate: deps
go generate ./...
go generate .
go fmt command/plugin.go
test: deps
go test $(TEST) $(TESTARGS) -timeout=15s | tee packer-test.log
@go vet 2>/dev/null ; if [ $$? -eq 3 ]; then \
go get golang.org/x/tools/cmd/vet; \
fi
@echo "INFO: Test results going to packer-test.log; this may take awhile"
@go test $(TEST) $(TESTARGS) -timeout=15s | tee packer-test.log
@go vet $(TEST) ; if [ $$? -eq 1 ]; then \
echo "ERROR: Vet found problems in the code."; \
exit 1; \
@ -52,33 +54,13 @@ testacc: deps generate
PACKER_ACC=1 go test -v $(TEST) $(TESTARGS) -timeout=45m | tee packer-test-acc.log
testrace: deps
go test -race $(TEST) $(TESTARGS) -timeout=15s | tee packer-test-race.log
@echo "INFO: Test results going to packer-test-race.log; this may take awhile"
@go test -race $(TEST) $(TESTARGS) -timeout=15s | tee packer-test-race.log
# `go get -u` causes git to revert packer to the master branch. This causes all
# kinds of headaches. We record the git sha when make starts try to correct it
# if we detect dift. DO NOT use `git checkout -f` for this because it will wipe
# out your changes without asking.
updatedeps:
@echo "INFO: Currently on $(GITBRANCH) ($(GITSHA))"
@git diff-index --quiet HEAD ; if [ $$? -ne 0 ]; then \
echo "ERROR: Your git working tree has uncommitted changes. updatedeps will fail. Please stash or commit your changes first."; \
exit 1; \
fi
go get -u github.com/mitchellh/gox
go get -u golang.org/x/tools/cmd/stringer
go list ./... \
| xargs go list -f '{{join .Deps "\n"}}' \
| grep -v github.com/mitchellh/packer \
| grep -v '/internal/' \
| sort -u \
| xargs go get -f -u -v -d ; if [ $$? -ne 0 ]; then \
echo "ERROR: go get failed. Your git branch may have changed; you were on $(GITBRANCH) ($(GITSHA))."; \
fi
@if [ "$(GITBRANCH)" != "" ]; then git checkout -q $(GITBRANCH); else git checkout -q $(GITSHA); fi
@if [ `git rev-parse HEAD` != "$(GITSHA)" ]; then \
echo "ERROR: git checkout has drifted and we weren't able to correct it. Was $(GITBRANCH) ($(GITSHA))"; \
exit 1; \
fi
@echo "INFO: Currently on $(GITBRANCH) ($(GITSHA))"
go get -u golang.org/x/tools/cmd/vet
@echo "INFO: Packer deps are managed by godep. See CONTRIBUTING.md"
.PHONY: bin checkversion ci default deps generate releasebin test testacc testrace updatedeps

86
README.md
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@ -11,8 +11,9 @@ Packer is a tool for building identical machine images for multiple platforms
from a single source configuration.
Packer is lightweight, runs on every major operating system, and is highly
performant, creating machine images for multiple platforms in parallel.
Packer comes out of the box with support for the following platforms:
performant, creating machine images for multiple platforms in parallel. Packer
comes out of the box with support for the following platforms:
* Amazon EC2 (AMI). Both EBS-backed and instance-store AMIs
* DigitalOcean
* Docker
@ -79,87 +80,10 @@ they're run, etc. is up to you.
## Documentation
Full, comprehensive documentation is viewable on the Packer website:
Comprehensive documentation is viewable on the Packer website:
http://www.packer.io/docs
## Developing Packer
If you wish to work on Packer itself or any of its built-in providers,
you'll first need [Go](http://www.golang.org) installed (version 1.4+ is
_required_). Make sure Go is properly installed, including setting up
a [GOPATH](http://golang.org/doc/code.html#GOPATH).
Next, install the following software packages, which are needed for some dependencies:
- [Bazaar](http://bazaar.canonical.com/en/)
- [Git](http://git-scm.com/)
- [Mercurial](http://mercurial.selenic.com/)
Then, install [Gox](https://github.com/mitchellh/gox), which is used
as a compilation tool on top of Go:
$ go get -u github.com/mitchellh/gox
Next, clone this repository into `$GOPATH/src/github.com/mitchellh/packer`:
$ cd $GOPATH/src/github.com/mitchellh
$ git clone https://github.com/mitchellh/packer.git
$ cd packer
Install the necessary dependencies by running `make updatedeps` and then just
type `make`. This will compile some more dependencies and then run the tests. If
this exits with exit status 0, then everything is working!
$ make updatedeps
...
$ make
...
To compile a development version of Packer and the built-in plugins,
run `make dev`. This will put Packer binaries in the `bin` folder:
$ make dev
...
$ bin/packer
...
If you're developing a specific package, you can run tests for just that
package by specifying the `TEST` variable. For example below, only
`packer` package tests will be run.
$ make test TEST=./packer
...
### Acceptance Tests
Packer has comprehensive [acceptance tests](https://en.wikipedia.org/wiki/Acceptance_testing)
covering the builders of Packer.
If you're working on a feature of a builder or a new builder and want
verify it is functioning (and also hasn't broken anything else), we recommend
running the acceptance tests.
**Warning:** The acceptance tests create/destroy/modify *real resources*, which
may incur real costs in some cases. In the presence of a bug, it is technically
possible that broken backends could leave dangling data behind. Therefore,
please run the acceptance tests at your own risk. At the very least,
we recommend running them in their own private account for whatever builder
you're testing.
To run the acceptance tests, invoke `make testacc`:
```sh
$ make testacc TEST=./builder/amazon/ebs
...
```
The `TEST` variable is required, and you should specify the folder where the
backend is. The `TESTARGS` variable is recommended to filter down to a specific
resource to test, since testing all of them at once can sometimes take a very
long time.
Acceptance tests typically require other environment variables to be set for
things such as access keys. The test itself should error early and tell
you what to set, so it is not documented here.
See [CONTRIBUTING.md](https://github.com/mitchellh/packer/blob/master/CONTRIBUTING.md) for best practices and instructions on setting up your development environment to work on Packer.

11
appveyor.yml
View File

@ -14,25 +14,28 @@ environment:
GOPATH: c:\gopath
matrix:
- GOARCH: 386
GOVERSION: 1.4.2
GOVERSION: 1.6rc2
- GOARCH: amd64
GOVERSION: 1.4.2
GOVERSION: 1.6rc2
clone_folder: c:\gopath\src\github.com\mitchellh\packer
install:
- set Path=c:\go\bin;%Path%
- set GO15VENDOREXPERIMENT=1
- echo %Path%
- appveyor DownloadFile https://storage.googleapis.com/golang/go%GOVERSION%.windows-%GOARCH%.msi
- msiexec /i go%GOVERSION%.windows-%GOARCH%.msi /q
- go version
- go env
- go get -d -v -t ./...
- go get github.com/mitchellh/gox
- go get golang.org/x/tools/cmd/stringer
- go get golang.org/x/tools/cmd/vet
build_script:
- git rev-parse HEAD
- go test -v ./...
- go vet ./...
- git rev-parse HEAD
test: off

46
command/plugin.go
View File

@ -16,43 +16,43 @@ import (
amazonchrootbuilder "github.com/mitchellh/packer/builder/amazon/chroot"
amazonebsbuilder "github.com/mitchellh/packer/builder/amazon/ebs"
amazoninstancebuilder "github.com/mitchellh/packer/builder/amazon/instance"
ansibleprovisioner "github.com/mitchellh/packer/provisioner/ansible"
ansiblelocalprovisioner "github.com/mitchellh/packer/provisioner/ansible-local"
artificepostprocessor "github.com/mitchellh/packer/post-processor/artifice"
atlaspostprocessor "github.com/mitchellh/packer/post-processor/atlas"
chefclientprovisioner "github.com/mitchellh/packer/provisioner/chef-client"
chefsoloprovisioner "github.com/mitchellh/packer/provisioner/chef-solo"
compresspostprocessor "github.com/mitchellh/packer/post-processor/compress"
digitaloceanbuilder "github.com/mitchellh/packer/builder/digitalocean"
dockerbuilder "github.com/mitchellh/packer/builder/docker"
dockerimportpostprocessor "github.com/mitchellh/packer/post-processor/docker-import"
dockerpushpostprocessor "github.com/mitchellh/packer/post-processor/docker-push"
dockersavepostprocessor "github.com/mitchellh/packer/post-processor/docker-save"
dockertagpostprocessor "github.com/mitchellh/packer/post-processor/docker-tag"
filebuilder "github.com/mitchellh/packer/builder/file"
fileprovisioner "github.com/mitchellh/packer/provisioner/file"
googlecomputebuilder "github.com/mitchellh/packer/builder/googlecompute"
nullbuilder "github.com/mitchellh/packer/builder/null"
openstackbuilder "github.com/mitchellh/packer/builder/openstack"
parallelsisobuilder "github.com/mitchellh/packer/builder/parallels/iso"
parallelspvmbuilder "github.com/mitchellh/packer/builder/parallels/pvm"
powershellprovisioner "github.com/mitchellh/packer/provisioner/powershell"
puppetmasterlessprovisioner "github.com/mitchellh/packer/provisioner/puppet-masterless"
puppetserverprovisioner "github.com/mitchellh/packer/provisioner/puppet-server"
qemubuilder "github.com/mitchellh/packer/builder/qemu"
saltmasterlessprovisioner "github.com/mitchellh/packer/provisioner/salt-masterless"
shelllocalprovisioner "github.com/mitchellh/packer/provisioner/shell-local"
shellprovisioner "github.com/mitchellh/packer/provisioner/shell"
vagrantcloudpostprocessor "github.com/mitchellh/packer/post-processor/vagrant-cloud"
vagrantpostprocessor "github.com/mitchellh/packer/post-processor/vagrant"
virtualboxisobuilder "github.com/mitchellh/packer/builder/virtualbox/iso"
virtualboxovfbuilder "github.com/mitchellh/packer/builder/virtualbox/ovf"
vmwareisobuilder "github.com/mitchellh/packer/builder/vmware/iso"
vmwarevmxbuilder "github.com/mitchellh/packer/builder/vmware/vmx"
artificepostprocessor "github.com/mitchellh/packer/post-processor/artifice"
atlaspostprocessor "github.com/mitchellh/packer/post-processor/atlas"
compresspostprocessor "github.com/mitchellh/packer/post-processor/compress"
dockerimportpostprocessor "github.com/mitchellh/packer/post-processor/docker-import"
dockerpushpostprocessor "github.com/mitchellh/packer/post-processor/docker-push"
dockersavepostprocessor "github.com/mitchellh/packer/post-processor/docker-save"
dockertagpostprocessor "github.com/mitchellh/packer/post-processor/docker-tag"
shelllocalpostprocessor "github.com/mitchellh/packer/post-processor/shell-local"
vagrantpostprocessor "github.com/mitchellh/packer/post-processor/vagrant"
vagrantcloudpostprocessor "github.com/mitchellh/packer/post-processor/vagrant-cloud"
vspherepostprocessor "github.com/mitchellh/packer/post-processor/vsphere"
ansibleprovisioner "github.com/mitchellh/packer/provisioner/ansible"
ansiblelocalprovisioner "github.com/mitchellh/packer/provisioner/ansible-local"
chefclientprovisioner "github.com/mitchellh/packer/provisioner/chef-client"
chefsoloprovisioner "github.com/mitchellh/packer/provisioner/chef-solo"
fileprovisioner "github.com/mitchellh/packer/provisioner/file"
powershellprovisioner "github.com/mitchellh/packer/provisioner/powershell"
puppetmasterlessprovisioner "github.com/mitchellh/packer/provisioner/puppet-masterless"
puppetserverprovisioner "github.com/mitchellh/packer/provisioner/puppet-server"
saltmasterlessprovisioner "github.com/mitchellh/packer/provisioner/salt-masterless"
shellprovisioner "github.com/mitchellh/packer/provisioner/shell"
shelllocalprovisioner "github.com/mitchellh/packer/provisioner/shell-local"
windowsrestartprovisioner "github.com/mitchellh/packer/provisioner/windows-restart"
windowsshellprovisioner "github.com/mitchellh/packer/provisioner/windows-shell"
)
type PluginCommand struct {
@ -78,7 +78,6 @@ var Builders = map[string]packer.Builder{
"vmware-vmx": new(vmwarevmxbuilder.Builder),
}
var Provisioners = map[string]packer.Provisioner{
"ansible": new(ansibleprovisioner.Provisioner),
"ansible-local": new(ansiblelocalprovisioner.Provisioner),
@ -95,7 +94,6 @@ var Provisioners = map[string]packer.Provisioner{
"windows-shell": new(windowsshellprovisioner.Provisioner),
}
var PostProcessors = map[string]packer.PostProcessor{
"artifice": new(artificepostprocessor.PostProcessor),
"atlas": new(atlaspostprocessor.PostProcessor),
@ -104,12 +102,12 @@ var PostProcessors = map[string]packer.PostProcessor{
"docker-push": new(dockerpushpostprocessor.PostProcessor),
"docker-save": new(dockersavepostprocessor.PostProcessor),
"docker-tag": new(dockertagpostprocessor.PostProcessor),
"shell-local": new(shelllocalpostprocessor.PostProcessor),
"vagrant": new(vagrantpostprocessor.PostProcessor),
"vagrant-cloud": new(vagrantcloudpostprocessor.PostProcessor),
"vsphere": new(vspherepostprocessor.PostProcessor),
}
var pluginRegexp = regexp.MustCompile("packer-(builder|post-processor|provisioner)-(.+)")
func (c *PluginCommand) Run(args []string) int {

2
command/version.go
View File

@ -1,7 +1,5 @@
package command
//go:generate go run ../scripts/generate-plugins.go
import (
"bytes"
"fmt"

2
main.go
View File

@ -1,4 +1,6 @@
// This is the main package for the `packer` application.
//go:generate go run ./scripts/generate-plugins.go
package main
import (

4
scripts/build.sh
View File

@ -25,10 +25,6 @@ fi
XC_ARCH=${XC_ARCH:-"386 amd64 arm"}
XC_OS=${XC_OS:-linux darwin windows freebsd openbsd}
# Install dependencies
echo "==> Getting dependencies..."
go get -d ./...
# Delete the old dir
echo "==> Removing old directory..."
rm -f bin/*

7
scripts/generate-plugins.go
View File

@ -20,17 +20,10 @@ import (
const target = "command/plugin.go"
func main() {
// Normally this is run via go:generate from the command folder so we need
// to cd .. first. But when developing it's easier to use go run, so we'll
// support that too.
wd, _ := os.Getwd()
if filepath.Base(wd) != "packer" {
os.Chdir("..")
wd, _ = os.Getwd()
if filepath.Base(wd) != "packer" {
log.Fatalf("This program must be invoked in the packer project root; in %s", wd)
}
}
// Collect all of the data we need about plugins we have in the project
builders, err := discoverBuilders()

3
vendor/github.com/ActiveState/tail/.gitignore generated vendored Normal file
View File

@ -0,0 +1,3 @@
.test
.go

13
vendor/github.com/ActiveState/tail/.travis.yml generated vendored Normal file
View File

@ -0,0 +1,13 @@
language: go
script:
- go test -race -v ./...
go:
- 1.3.3
- 1.4.3
- 1.5.2
install:
- go get gopkg.in/fsnotify.v1
- go get gopkg.in/tomb.v1

57
vendor/github.com/ActiveState/tail/CHANGES.md generated vendored Normal file
View File

@ -0,0 +1,57 @@
# API current (gopkg.in/ActiveState/tail)
## July, 2015
* Fix inotify watcher leak; remove `Cleanup` (#51)
# API v0 (gopkg.in/ActiveState/tail.v0)
## June, 2015
* Don't return partial lines (PR #40)
* Use stable version of fsnotify (#46)
## July, 2014
* Fix tail for Windows (PR #36)
## May, 2014
* Improved rate limiting using leaky bucket (PR #29)
* Fix odd line splitting (PR #30)
## Apr, 2014
* LimitRate now discards read buffer (PR #28)
* allow reading of longer lines if MaxLineSize is unset (PR #24)
* updated deps.json to latest fsnotify (441bbc86b1)
## Feb, 2014
* added `Config.Logger` to suppress library logging
## Nov, 2013
* add Cleanup to remove leaky inotify watches (PR #20)
## Aug, 2013
* redesigned Location field (PR #12)
* add tail.Tell (PR #14)
## July, 2013
* Rate limiting (PR #10)
## May, 2013
* Detect file deletions/renames in polling file watcher (PR #1)
* Detect file truncation
* Fix potential race condition when reopening the file (issue 5)
* Fix potential blocking of `tail.Stop` (issue 4)
* Fix uncleaned up ChangeEvents goroutines after calling tail.Stop
* Support Follow=false
## Feb, 2013
* Initial open source release

19
vendor/github.com/ActiveState/tail/Dockerfile generated vendored Normal file
View File

@ -0,0 +1,19 @@
FROM golang
RUN mkdir -p $GOPATH/src/github.com/hpcloud/tail/
ADD . $GOPATH/src/github.com/hpcloud/tail/
# expecting to fetch dependencies successfully.
RUN go get -v github.com/hpcloud/tail
# expecting to run the test successfully.
RUN go test -v github.com/hpcloud/tail
# expecting to install successfully
RUN go install -v github.com/hpcloud/tail
RUN go install -v github.com/hpcloud/tail/cmd/gotail
RUN $GOPATH/bin/gotail -h || true
ENV PATH $GOPATH/bin:$PATH
CMD ["gotail"]

23
vendor/github.com/ActiveState/tail/LICENSE.txt generated vendored Normal file
View File

@ -0,0 +1,23 @@
# This is the MIT license
# Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

11
vendor/github.com/ActiveState/tail/Makefile generated vendored Normal file
View File

@ -0,0 +1,11 @@
default: test
test: *.go
go test -v ./...
fmt:
gofmt -w .
# Run the test in an isolated environment.
fulltest:
docker build -t hpcloud/tail .

27
vendor/github.com/ActiveState/tail/README.md generated vendored Normal file
View File

@ -0,0 +1,27 @@
[![Build Status](https://travis-ci.org/hpcloud/tail.svg)](https://travis-ci.org/hpcloud/tail)
# Go package for tail-ing files
A Go package striving to emulate the features of the BSD `tail` program.
```Go
t, err := tail.TailFile("/var/log/nginx.log", tail.Config{Follow: true})
for line := range t.Lines {
fmt.Println(line.Text)
}
```
See [API documentation](http://godoc.org/github.com/hpcloud/tail).
## Log rotation
Tail comes with full support for truncation/move detection as it is
designed to work with log rotation tools.
## Installing
go get github.com/hpcloud/tail/...
## Windows support
This package [needs assistance](https://github.com/hpcloud/tail/labels/Windows) for full Windows support.

1
vendor/github.com/ActiveState/tail/cmd/gotail/.gitignore generated vendored Normal file
View File

@ -0,0 +1 @@
gotail

4
vendor/github.com/ActiveState/tail/cmd/gotail/Makefile generated vendored Normal file
View File

@ -0,0 +1,4 @@
default: gotail
gotail: *.go ../../*.go
go build

64
vendor/github.com/ActiveState/tail/cmd/gotail/gotail.go generated vendored Normal file
View File

@ -0,0 +1,64 @@
// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
package main
import (
"flag"
"fmt"
"github.com/hpcloud/tail"
"os"
)
func args2config() (tail.Config, int64) {
config := tail.Config{Follow: true}
n := int64(0)
maxlinesize := int(0)
flag.Int64Var(&n, "n", 0, "tail from the last Nth location")
flag.IntVar(&maxlinesize, "max", 0, "max line size")
flag.BoolVar(&config.Follow, "f", false, "wait for additional data to be appended to the file")
flag.BoolVar(&config.ReOpen, "F", false, "follow, and track file rename/rotation")
flag.BoolVar(&config.Poll, "p", false, "use polling, instead of inotify")
flag.Parse()
if config.ReOpen {
config.Follow = true
}
config.MaxLineSize = maxlinesize
return config, n
}
func main() {
config, n := args2config()
if flag.NFlag() < 1 {
fmt.Println("need one or more files as arguments")
os.Exit(1)
}
if n != 0 {
config.Location = &tail.SeekInfo{-n, os.SEEK_END}
}
done := make(chan bool)
for _, filename := range flag.Args() {
go tailFile(filename, config, done)
}
for _, _ = range flag.Args() {
<-done
}
}
func tailFile(filename string, config tail.Config, done chan bool) {
defer func() { done <- true }()
t, err := tail.TailFile(filename, config)
if err != nil {
fmt.Println(err)
return
}
for line := range t.Lines {
fmt.Println(line.Text)
}
err = t.Wait()
if err != nil {
fmt.Println(err)
}
}

14
vendor/github.com/ActiveState/tail/deps.json generated vendored Normal file
View File

@ -0,0 +1,14 @@
{
"github.com/howeyc/fsnotify": {
"repo": "http://github.com/howeyc/fsnotify.git",
"version": "441bbc86b167",
"type": "git-clone",
"alias": "github.com/howeyc/fsnotify"
},
"gopkg.in/tomb.v1": {
"repo": "https://github.com/go-tomb/tomb.git",
"version": "c131134a1947e9afd9cecfe11f4c6dff0732ae58",
"type": "git-clone",
"alias": "gopkg.in/tomb.v1"
}
}

7
vendor/github.com/ActiveState/tail/ratelimiter/Licence generated vendored Normal file
View File

@ -0,0 +1,7 @@
Copyright (C) 2013 99designs
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

97
vendor/github.com/ActiveState/tail/ratelimiter/leakybucket.go generated vendored Normal file
View File

@ -0,0 +1,97 @@
// Package ratelimiter implements the Leaky Bucket ratelimiting algorithm with memcached and in-memory backends.
package ratelimiter
import (
"time"
)
type LeakyBucket struct {
Size uint16
Fill float64
LeakInterval time.Duration // time.Duration for 1 unit of size to leak
Lastupdate time.Time
Now func() time.Time
}
func NewLeakyBucket(size uint16, leakInterval time.Duration) *LeakyBucket {
bucket := LeakyBucket{
Size: size,
Fill: 0,
LeakInterval: leakInterval,
Now: time.Now,
Lastupdate: time.Now(),
}
return &bucket
}
func (b *LeakyBucket) updateFill() {
now := b.Now()
if b.Fill > 0 {
elapsed := now.Sub(b.Lastupdate)
b.Fill -= float64(elapsed) / float64(b.LeakInterval)
if b.Fill < 0 {
b.Fill = 0
}
}
b.Lastupdate = now
}
func (b *LeakyBucket) Pour(amount uint16) bool {
b.updateFill()
var newfill float64 = b.Fill + float64(amount)
if newfill > float64(b.Size) {
return false
}
b.Fill = newfill
return true
}
// The time at which this bucket will be completely drained
func (b *LeakyBucket) DrainedAt() time.Time {
return b.Lastupdate.Add(time.Duration(b.Fill * float64(b.LeakInterval)))
}
// The duration until this bucket is completely drained
func (b *LeakyBucket) TimeToDrain() time.Duration {
return b.DrainedAt().Sub(b.Now())
}
func (b *LeakyBucket) TimeSinceLastUpdate() time.Duration {
return b.Now().Sub(b.Lastupdate)
}
type LeakyBucketSer struct {
Size uint16
Fill float64
LeakInterval time.Duration // time.Duration for 1 unit of size to leak
Lastupdate time.Time
}
func (b *LeakyBucket) Serialise() *LeakyBucketSer {
bucket := LeakyBucketSer{
Size: b.Size,
Fill: b.Fill,
LeakInterval: b.LeakInterval,
Lastupdate: b.Lastupdate,
}
return &bucket
}
func (b *LeakyBucketSer) DeSerialise() *LeakyBucket {
bucket := LeakyBucket{
Size: b.Size,
Fill: b.Fill,
LeakInterval: b.LeakInterval,
Lastupdate: b.Lastupdate,
Now: time.Now,
}
return &bucket
}

58
vendor/github.com/ActiveState/tail/ratelimiter/memory.go generated vendored Normal file
View File

@ -0,0 +1,58 @@
package ratelimiter
import (
"errors"
"time"
)
const GC_SIZE int = 100
type Memory struct {
store map[string]LeakyBucket
lastGCCollected time.Time
}
func NewMemory() *Memory {
m := new(Memory)
m.store = make(map[string]LeakyBucket)
m.lastGCCollected = time.Now()
return m
}
func (m *Memory) GetBucketFor(key string) (*LeakyBucket, error) {
bucket, ok := m.store[key]
if !ok {
return nil, errors.New("miss")
}
return &bucket, nil
}
func (m *Memory) SetBucketFor(key string, bucket LeakyBucket) error {
if len(m.store) > GC_SIZE {
m.GarbageCollect()
}
m.store[key] = bucket
return nil
}
func (m *Memory) GarbageCollect() {
now := time.Now()
// rate limit GC to once per minute
if now.Add(60*time.Second).Unix() > m.lastGCCollected.Unix() {
for key, bucket := range m.store {
// if the bucket is drained, then GC
if bucket.DrainedAt().Unix() > now.Unix() {
delete(m.store, key)
}
}
m.lastGCCollected = now
}
}

6
vendor/github.com/ActiveState/tail/ratelimiter/storage.go generated vendored Normal file
View File

@ -0,0 +1,6 @@
package ratelimiter
type Storage interface {
GetBucketFor(string) (*LeakyBucket, error)
SetBucketFor(string, LeakyBucket) error
}

419
vendor/github.com/ActiveState/tail/tail.go generated vendored Normal file
View File

@ -0,0 +1,419 @@
// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
package tail
import (
"bufio"
"fmt"
"io"
"io/ioutil"
"log"
"os"
"strings"
"sync"
"time"
"github.com/hpcloud/tail/ratelimiter"
"github.com/hpcloud/tail/util"
"github.com/hpcloud/tail/watch"
"gopkg.in/tomb.v1"
)
var (
ErrStop = fmt.Errorf("tail should now stop")
)
type Line struct {
Text string
Time time.Time
Err error // Error from tail
}
// NewLine returns a Line with present time.
func NewLine(text string) *Line {
return &Line{text, time.Now(), nil}
}
// SeekInfo represents arguments to `os.Seek`
type SeekInfo struct {
Offset int64
Whence int // os.SEEK_*
}
type logger interface {
Fatal(v ...interface{})
Fatalf(format string, v ...interface{})
Fatalln(v ...interface{})
Panic(v ...interface{})
Panicf(format string, v ...interface{})
Panicln(v ...interface{})
Print(v ...interface{})
Printf(format string, v ...interface{})
Println(v ...interface{})
}
// Config is used to specify how a file must be tailed.
type Config struct {
// File-specifc
Location *SeekInfo // Seek to this location before tailing
ReOpen bool // Reopen recreated files (tail -F)
MustExist bool // Fail early if the file does not exist
Poll bool // Poll for file changes instead of using inotify
Pipe bool // Is a named pipe (mkfifo)
RateLimiter *ratelimiter.LeakyBucket
// Generic IO
Follow bool // Continue looking for new lines (tail -f)
MaxLineSize int // If non-zero, split longer lines into multiple lines
// Logger, when nil, is set to tail.DefaultLogger
// To disable logging: set field to tail.DiscardingLogger
Logger logger
}
type Tail struct {
Filename string
Lines chan *Line
Config
file *os.File
reader *bufio.Reader
watcher watch.FileWatcher
changes *watch.FileChanges
tomb.Tomb // provides: Done, Kill, Dying
lk sync.Mutex
}
var (
// DefaultLogger is used when Config.Logger == nil
DefaultLogger = log.New(os.Stderr, "", log.LstdFlags)
// DiscardingLogger can be used to disable logging output
DiscardingLogger = log.New(ioutil.Discard, "", 0)
)
// TailFile begins tailing the file. Output stream is made available
// via the `Tail.Lines` channel. To handle errors during tailing,
// invoke the `Wait` or `Err` method after finishing reading from the
// `Lines` channel.
func TailFile(filename string, config Config) (*Tail, error) {
if config.ReOpen && !config.Follow {
util.Fatal("cannot set ReOpen without Follow.")
}
t := &Tail{
Filename: filename,
Lines: make(chan *Line),
Config: config,
}
// when Logger was not specified in config, use default logger
if t.Logger == nil {
t.Logger = log.New(os.Stderr, "", log.LstdFlags)
}
if t.Poll {
t.watcher = watch.NewPollingFileWatcher(filename)
} else {
t.watcher = watch.NewInotifyFileWatcher(filename)
}
if t.MustExist {
var err error
t.file, err = OpenFile(t.Filename)
if err != nil {
return nil, err
}
}
go t.tailFileSync()
return t, nil
}
// Return the file's current position, like stdio's ftell().
// But this value is not very accurate.
// it may readed one line in the chan(tail.Lines),
// so it may lost one line.
func (tail *Tail) Tell() (offset int64, err error) {
if tail.file == nil {
return
}
offset, err = tail.file.Seek(0, os.SEEK_CUR)
if err == nil {
tail.lk.Lock()
offset -= int64(tail.reader.Buffered())
tail.lk.Unlock()
}
return
}
// Stop stops the tailing activity.
func (tail *Tail) Stop() error {
tail.Kill(nil)
return tail.Wait()
}
func (tail *Tail) close() {
close(tail.Lines)
tail.colseFile()
}
func (tail *Tail) colseFile() {
if tail.file != nil {
tail.file.Close()
tail.file = nil
}
}
func (tail *Tail) reopen() error {
tail.colseFile()
for {
var err error
tail.file, err = OpenFile(tail.Filename)
if err != nil {
if os.IsNotExist(err) {
tail.Logger.Printf("Waiting for %s to appear...", tail.Filename)
if err := tail.watcher.BlockUntilExists(&tail.Tomb); err != nil {
if err == tomb.ErrDying {
return err
}
return fmt.Errorf("Failed to detect creation of %s: %s", tail.Filename, err)
}
continue
}
return fmt.Errorf("Unable to open file %s: %s", tail.Filename, err)
}
break
}
return nil
}
func (tail *Tail) readLine() (string, error) {
tail.lk.Lock()
line, err := tail.reader.ReadString('\n')
tail.lk.Unlock()
if err != nil {
// Note ReadString "returns the data read before the error" in
// case of an error, including EOF, so we return it as is. The
// caller is expected to process it if err is EOF.
return line, err
}
line = strings.TrimRight(line, "\n")
return line, err
}
func (tail *Tail) tailFileSync() {
defer tail.Done()
defer tail.close()
if !tail.MustExist {
// deferred first open.
err := tail.reopen()
if err != nil {
if err != tomb.ErrDying {
tail.Kill(err)
}
return
}
}
// Seek to requested location on first open of the file.
if tail.Location != nil {
_, err := tail.file.Seek(tail.Location.Offset, tail.Location.Whence)
tail.Logger.Printf("Seeked %s - %+v\n", tail.Filename, tail.Location)
if err != nil {
tail.Killf("Seek error on %s: %s", tail.Filename, err)
return
}
}
tail.openReader()
var offset int64 = 0
var err error
// Read line by line.
for {
// do not seek in named pipes
if !tail.Pipe {
// grab the position in case we need to back up in the event of a half-line
offset, err = tail.Tell()
if err != nil {
tail.Kill(err)
return
}
}
line, err := tail.readLine()
// Process `line` even if err is EOF.
if err == nil {
cooloff := !tail.sendLine(line)
if cooloff {
// Wait a second before seeking till the end of
// file when rate limit is reached.
msg := fmt.Sprintf(
"Too much log activity; waiting a second " +
"before resuming tailing")
tail.Lines <- &Line{msg, time.Now(), fmt.Errorf(msg)}
select {
case <-time.After(time.Second):
case <-tail.Dying():
return
}
err = tail.seekEnd()
if err != nil {
tail.Kill(err)
return
}
}
} else if err == io.EOF {
if !tail.Follow {
if line != "" {
tail.sendLine(line)
}
return
}
if tail.Follow && line != "" {
// this has the potential to never return the last line if
// it's not followed by a newline; seems a fair trade here
err := tail.seekTo(SeekInfo{Offset: offset, Whence: 0})
if err != nil {
tail.Kill(err)
return
}
}
// When EOF is reached, wait for more data to become
// available. Wait strategy is based on the `tail.watcher`
// implementation (inotify or polling).
err := tail.waitForChanges()
if err != nil {
if err != ErrStop {
tail.Kill(err)
}
return
}
} else {
// non-EOF error
tail.Killf("Error reading %s: %s", tail.Filename, err)
return
}
select {
case <-tail.Dying():
return
default:
}
}
}
// waitForChanges waits until the file has been appended, deleted,
// moved or truncated. When moved or deleted - the file will be
// reopened if ReOpen is true. Truncated files are always reopened.
func (tail *Tail) waitForChanges() error {
if tail.changes == nil {
pos, err := tail.file.Seek(0, os.SEEK_CUR)
if err != nil {
return err
}
tail.changes, err = tail.watcher.ChangeEvents(&tail.Tomb, pos)
if err != nil {
return err
}
}
select {
case <-tail.changes.Modified:
return nil
case <-tail.changes.Deleted:
tail.changes = nil
if tail.ReOpen {
// XXX: we must not log from a library.
tail.Logger.Printf("Re-opening moved/deleted file %s ...", tail.Filename)
if err := tail.reopen(); err != nil {
return err
}
tail.Logger.Printf("Successfully reopened %s", tail.Filename)
tail.openReader()
return nil
} else {
tail.Logger.Printf("Stopping tail as file no longer exists: %s", tail.Filename)
return ErrStop
}
case <-tail.changes.Truncated:
// Always reopen truncated files (Follow is true)
tail.Logger.Printf("Re-opening truncated file %s ...", tail.Filename)
if err := tail.reopen(); err != nil {
return err
}
tail.Logger.Printf("Successfully reopened truncated %s", tail.Filename)
tail.openReader()
return nil
case <-tail.Dying():
return ErrStop
}
panic("unreachable")
}
func (tail *Tail) openReader() {
if tail.MaxLineSize > 0 {
// add 2 to account for newline characters
tail.reader = bufio.NewReaderSize(tail.file, tail.MaxLineSize+2)
} else {
tail.reader = bufio.NewReader(tail.file)
}
}
func (tail *Tail) seekEnd() error {
return tail.seekTo(SeekInfo{Offset: 0, Whence: os.SEEK_END})
}
func (tail *Tail) seekTo(pos SeekInfo) error {
_, err := tail.file.Seek(pos.Offset, pos.Whence)
if err != nil {
return fmt.Errorf("Seek error on %s: %s", tail.Filename, err)
}
// Reset the read buffer whenever the file is re-seek'ed
tail.reader.Reset(tail.file)
return nil
}
// sendLine sends the line(s) to Lines channel, splitting longer lines
// if necessary. Return false if rate limit is reached.
func (tail *Tail) sendLine(line string) bool {
now := time.Now()
lines := []string{line}
// Split longer lines
if tail.MaxLineSize > 0 && len(line) > tail.MaxLineSize {
lines = util.PartitionString(line, tail.MaxLineSize)
}
for _, line := range lines {
tail.Lines <- &Line{line, now, nil}
}
if tail.Config.RateLimiter != nil {
ok := tail.Config.RateLimiter.Pour(uint16(len(lines)))
if !ok {
tail.Logger.Printf("Leaky bucket full (%v); entering 1s cooloff period.\n",
tail.Filename)
return false
}
}
return true
}
// Cleanup removes inotify watches added by the tail package. This function is
// meant to be invoked from a process's exit handler. Linux kernel may not
// automatically remove inotify watches after the process exits.
func (tail *Tail) Cleanup() {
watch.Cleanup(tail.Filename)
}

11
vendor/github.com/ActiveState/tail/tail_posix.go generated vendored Normal file
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@ -0,0 +1,11 @@
// +build linux darwin freebsd netbsd openbsd
package tail
import (
"os"
)
func OpenFile(name string) (file *os.File, err error) {
return os.Open(name)
}

12
vendor/github.com/ActiveState/tail/tail_windows.go generated vendored Normal file
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@ -0,0 +1,12 @@
// +build windows
package tail
import (
"github.com/hpcloud/tail/winfile"
"os"
)
func OpenFile(name string) (file *os.File, err error) {
return winfile.OpenFile(name, os.O_RDONLY, 0)
}

47
vendor/github.com/ActiveState/tail/util/util.go generated vendored Normal file
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@ -0,0 +1,47 @@
// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
package util
import (
"fmt"
"log"
"os"
"runtime/debug"
)
type Logger struct {
*log.Logger
}
var LOGGER = &Logger{log.New(os.Stderr, "", log.LstdFlags)}
// fatal is like panic except it displays only the current goroutine's stack.
func Fatal(format string, v ...interface{}) {
// https://github.com/ActiveState/log/blob/master/log.go#L45
LOGGER.Output(2, fmt.Sprintf("FATAL -- "+format, v...)+"\n"+string(debug.Stack()))
os.Exit(1)
}
// partitionString partitions the string into chunks of given size,
// with the last chunk of variable size.
func PartitionString(s string, chunkSize int) []string {
if chunkSize <= 0 {
panic("invalid chunkSize")
}
length := len(s)
chunks := 1 + length/chunkSize
start := 0
end := chunkSize
parts := make([]string, 0, chunks)
for {
if end > length {
end = length
}
parts = append(parts, s[start:end])
if end == length {
break
}
start, end = end, end+chunkSize
}
return parts
}

42
vendor/github.com/ActiveState/tail/watch/filechanges.go generated vendored Normal file
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@ -0,0 +1,42 @@
package watch
type FileChanges struct {
Modified chan bool // Channel to get notified of modifications
Truncated chan bool // Channel to get notified of truncations
Deleted chan bool // Channel to get notified of deletions/renames
}
func NewFileChanges() *FileChanges {
return &FileChanges{
make(chan bool), make(chan bool), make(chan bool)}
}
func (fc *FileChanges) NotifyModified() {
sendOnlyIfEmpty(fc.Modified)
}
func (fc *FileChanges) NotifyTruncated() {
sendOnlyIfEmpty(fc.Truncated)
}
func (fc *FileChanges) NotifyDeleted() {
sendOnlyIfEmpty(fc.Deleted)
}
func (fc *FileChanges) Close() {
close(fc.Modified)
close(fc.Truncated)
close(fc.Deleted)
}
// sendOnlyIfEmpty sends on a bool channel only if the channel has no
// backlog to be read by other goroutines. This concurrency pattern
// can be used to notify other goroutines if and only if they are
// looking for it (i.e., subsequent notifications can be compressed
// into one).
func sendOnlyIfEmpty(ch chan bool) {
select {
case ch <- true:
default:
}
}

119
vendor/github.com/ActiveState/tail/watch/inotify.go generated vendored Normal file
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@ -0,0 +1,119 @@
// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
package watch
import (
"fmt"
"os"
"path/filepath"
"github.com/hpcloud/tail/util"
"gopkg.in/fsnotify.v1"
"gopkg.in/tomb.v1"
)
// InotifyFileWatcher uses inotify to monitor file changes.
type InotifyFileWatcher struct {
Filename string
Size int64
}
func NewInotifyFileWatcher(filename string) *InotifyFileWatcher {
fw := &InotifyFileWatcher{filepath.Clean(filename), 0}
return fw
}
func (fw *InotifyFileWatcher) BlockUntilExists(t *tomb.Tomb) error {
err := WatchCreate(fw.Filename)
if err != nil {
return err
}
defer RemoveWatchCreate(fw.Filename)
// Do a real check now as the file might have been created before
// calling `WatchFlags` above.
if _, err = os.Stat(fw.Filename); !os.IsNotExist(err) {
// file exists, or stat returned an error.
return err
}
events := Events(fw.Filename)
for {
select {
case evt, ok := <-events:
if !ok {
return fmt.Errorf("inotify watcher has been closed")
} else if filepath.Clean(evt.Name) == fw.Filename {
return nil
}
case <-t.Dying():
return tomb.ErrDying
}
}
panic("unreachable")
}
func (fw *InotifyFileWatcher) ChangeEvents(t *tomb.Tomb, pos int64) (*FileChanges, error) {
err := Watch(fw.Filename)
if err != nil {
return nil, err
}
changes := NewFileChanges()
fw.Size = pos
go func() {
defer RemoveWatch(fw.Filename)
defer changes.Close()
events := Events(fw.Filename)
for {
prevSize := fw.Size
var evt fsnotify.Event
var ok bool
select {
case evt, ok = <-events:
if !ok {
return
}
case <-t.Dying():
return
}
switch {
case evt.Op&fsnotify.Remove == fsnotify.Remove:
fallthrough
case evt.Op&fsnotify.Rename == fsnotify.Rename:
changes.NotifyDeleted()
return
case evt.Op&fsnotify.Write == fsnotify.Write:
fi, err := os.Stat(fw.Filename)
if err != nil {
if os.IsNotExist(err) {
changes.NotifyDeleted()
return
}
// XXX: report this error back to the user
util.Fatal("Failed to stat file %v: %v", fw.Filename, err)
}
fw.Size = fi.Size()
if prevSize > 0 && prevSize > fw.Size {
changes.NotifyTruncated()
} else {
changes.NotifyModified()
}
prevSize = fw.Size
}
}
}()
return changes, nil
}

254
vendor/github.com/ActiveState/tail/watch/inotify_tracker.go generated vendored Normal file
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@ -0,0 +1,254 @@
// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
package watch
import (
"log"
"os"
"path/filepath"
"sync"
"syscall"
"github.com/hpcloud/tail/util"
"gopkg.in/fsnotify.v1"
)
type InotifyTracker struct {
mux sync.Mutex
watcher *fsnotify.Watcher
chans map[string]chan fsnotify.Event
done map[string]chan bool
watchNums map[string]int
watch chan *watchInfo
remove chan *watchInfo
error chan error
}
type watchInfo struct {
op fsnotify.Op
fname string
}
func (this *watchInfo) isCreate() bool {
return this.op == fsnotify.Create
}
var (
// globally shared InotifyTracker; ensures only one fsnotify.Watcher is used
shared *InotifyTracker
// these are used to ensure the shared InotifyTracker is run exactly once
once = sync.Once{}
goRun = func() {
shared = &InotifyTracker{
mux: sync.Mutex{},
chans: make(map[string]chan fsnotify.Event),
done: make(map[string]chan bool),
watchNums: make(map[string]int),
watch: make(chan *watchInfo),
remove: make(chan *watchInfo),
error: make(chan error),
}
go shared.run()
}
logger = log.New(os.Stderr, "", log.LstdFlags)
)
// Watch signals the run goroutine to begin watching the input filename
func Watch(fname string) error {
return watch(&watchInfo{
fname: fname,
})
}
// Watch create signals the run goroutine to begin watching the input filename
// if call the WatchCreate function, don't call the Cleanup, call the RemoveWatchCreate
func WatchCreate(fname string) error {
return watch(&watchInfo{
op: fsnotify.Create,
fname: fname,
})
}
func watch(winfo *watchInfo) error {
// start running the shared InotifyTracker if not already running
once.Do(goRun)
winfo.fname = filepath.Clean(winfo.fname)
shared.watch <- winfo
return <-shared.error
}
// RemoveWatch signals the run goroutine to remove the watch for the input filename
func RemoveWatch(fname string) {
remove(&watchInfo{
fname: fname,
})
}
// RemoveWatch create signals the run goroutine to remove the watch for the input filename
func RemoveWatchCreate(fname string) {
remove(&watchInfo{
op: fsnotify.Create,
fname: fname,
})
}
func remove(winfo *watchInfo) {
// start running the shared InotifyTracker if not already running
once.Do(goRun)
winfo.fname = filepath.Clean(winfo.fname)
shared.mux.Lock()
done := shared.done[winfo.fname]
if done != nil {
delete(shared.done, winfo.fname)
close(done)
}
shared.mux.Unlock()
shared.remove <- winfo
}
// Events returns a channel to which FileEvents corresponding to the input filename
// will be sent. This channel will be closed when removeWatch is called on this
// filename.
func Events(fname string) chan fsnotify.Event {
shared.mux.Lock()
defer shared.mux.Unlock()
return shared.chans[fname]
}
// Cleanup removes the watch for the input filename if necessary.
func Cleanup(fname string) {
RemoveWatch(fname)
}
// watchFlags calls fsnotify.WatchFlags for the input filename and flags, creating
// a new Watcher if the previous Watcher was closed.
func (shared *InotifyTracker) addWatch(winfo *watchInfo) error {
shared.mux.Lock()
defer shared.mux.Unlock()
if shared.chans[winfo.fname] == nil {
shared.chans[winfo.fname] = make(chan fsnotify.Event)
shared.done[winfo.fname] = make(chan bool)
}
fname := winfo.fname
if winfo.isCreate() {
// Watch for new files to be created in the parent directory.
fname = filepath.Dir(fname)
}
// already in inotify watch
if shared.watchNums[fname] > 0 {
shared.watchNums[fname]++
if winfo.isCreate() {
shared.watchNums[winfo.fname]++
}
return nil
}
err := shared.watcher.Add(fname)
if err == nil {
shared.watchNums[fname]++
if winfo.isCreate() {
shared.watchNums[winfo.fname]++
}
}
return err
}
// removeWatch calls fsnotify.RemoveWatch for the input filename and closes the
// corresponding events channel.
func (shared *InotifyTracker) removeWatch(winfo *watchInfo) {
shared.mux.Lock()
defer shared.mux.Unlock()
ch := shared.chans[winfo.fname]
if ch == nil {
return
}
fname := winfo.fname
if winfo.isCreate() {
// Watch for new files to be created in the parent directory.
fname = filepath.Dir(fname)
}
shared.watchNums[fname]--
if shared.watchNums[fname] == 0 {
delete(shared.watchNums, fname)
// TODO: handle error
shared.watcher.Remove(fname)
}
delete(shared.chans, winfo.fname)
close(ch)
if !winfo.isCreate() {
return
}
shared.watchNums[winfo.fname]--
if shared.watchNums[winfo.fname] == 0 {
delete(shared.watchNums, winfo.fname)
}
}
// sendEvent sends the input event to the appropriate Tail.
func (shared *InotifyTracker) sendEvent(event fsnotify.Event) {
name := filepath.Clean(event.Name)
shared.mux.Lock()
ch := shared.chans[name]
done := shared.done[name]
shared.mux.Unlock()
if ch != nil && done != nil {
select {
case ch <- event:
case <-done:
}
}
}
// run starts the goroutine in which the shared struct reads events from its
// Watcher's Event channel and sends the events to the appropriate Tail.
func (shared *InotifyTracker) run() {
watcher, err := fsnotify.NewWatcher()
if err != nil {
util.Fatal("failed to create Watcher")
}
shared.watcher = watcher
for {
select {
case winfo := <-shared.watch:
shared.error <- shared.addWatch(winfo)
case winfo := <-shared.remove:
shared.removeWatch(winfo)
case event, open := <-shared.watcher.Events:
if !open {
return
}
shared.sendEvent(event)
case err, open := <-shared.watcher.Errors:
if !open {
return
} else if err != nil {
sysErr, ok := err.(*os.SyscallError)
if !ok || sysErr.Err != syscall.EINTR {
logger.Printf("Error in Watcher Error channel: %s", err)
}
}
}
}
}

119
vendor/github.com/ActiveState/tail/watch/polling.go generated vendored Normal file
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@ -0,0 +1,119 @@
// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
package watch
import (
"os"
"runtime"
"time"
"github.com/hpcloud/tail/util"
"gopkg.in/tomb.v1"
)
// PollingFileWatcher polls the file for changes.
type PollingFileWatcher struct {
Filename string
Size int64
}
func NewPollingFileWatcher(filename string) *PollingFileWatcher {
fw := &PollingFileWatcher{filename, 0}
return fw
}
var POLL_DURATION time.Duration
func (fw *PollingFileWatcher) BlockUntilExists(t *tomb.Tomb) error {
for {
if _, err := os.Stat(fw.Filename); err == nil {
return nil
} else if !os.IsNotExist(err) {
return err
}
select {
case <-time.After(POLL_DURATION):
continue
case <-t.Dying():
return tomb.ErrDying
}
}
panic("unreachable")
}
func (fw *PollingFileWatcher) ChangeEvents(t *tomb.Tomb, pos int64) (*FileChanges, error) {
origFi, err := os.Stat(fw.Filename)
if err != nil {
return nil, err
}
changes := NewFileChanges()
var prevModTime time.Time
// XXX: use tomb.Tomb to cleanly manage these goroutines. replace
// the fatal (below) with tomb's Kill.
fw.Size = pos
go func() {
defer changes.Close()
prevSize := fw.Size
for {
select {
case <-t.Dying():
return
default:
}
time.Sleep(POLL_DURATION)
fi, err := os.Stat(fw.Filename)
if err != nil {
// Windows cannot delete a file if a handle is still open (tail keeps one open)
// so it gives access denied to anything trying to read it until all handles are released.
if os.IsNotExist(err) || (runtime.GOOS == "windows" && os.IsPermission(err)) {
// File does not exist (has been deleted).
changes.NotifyDeleted()
return
}
// XXX: report this error back to the user
util.Fatal("Failed to stat file %v: %v", fw.Filename, err)
}
// File got moved/renamed?
if !os.SameFile(origFi, fi) {
changes.NotifyDeleted()
return
}
// File got truncated?
fw.Size = fi.Size()
if prevSize > 0 && prevSize > fw.Size {
changes.NotifyTruncated()
prevSize = fw.Size
continue
}
// File got bigger?
if prevSize > 0 && prevSize < fw.Size {
changes.NotifyModified()
prevSize = fw.Size
continue
}
prevSize = fw.Size
// File was appended to (changed)?
modTime := fi.ModTime()
if modTime != prevModTime {
prevModTime = modTime
changes.NotifyModified()
}
}
}()
return changes, nil
}
func init() {
POLL_DURATION = 250 * time.Millisecond
}

19
vendor/github.com/ActiveState/tail/watch/watch.go generated vendored Normal file
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@ -0,0 +1,19 @@
// Copyright (c) 2013 ActiveState Software Inc. All rights reserved.
package watch
import "gopkg.in/tomb.v1"
// FileWatcher monitors file-level events.
type FileWatcher interface {
// BlockUntilExists blocks until the file comes into existence.
BlockUntilExists(*tomb.Tomb) error
// ChangeEvents reports on changes to a file, be it modification,
// deletion, renames or truncations. Returned FileChanges group of
// channels will be closed, thus become unusable, after a deletion
// or truncation event.
// In order to properly report truncations, ChangeEvents requires
// the caller to pass their current offset in the file.
ChangeEvents(*tomb.Tomb, int64) (*FileChanges, error)
}

92
vendor/github.com/ActiveState/tail/winfile/winfile.go generated vendored Normal file
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@ -0,0 +1,92 @@
// +build windows
package winfile
import (
"os"
"syscall"
"unsafe"
)
// issue also described here
//https://codereview.appspot.com/8203043/
// https://github.com/jnwhiteh/golang/blob/master/src/pkg/syscall/syscall_windows.go#L218
func Open(path string, mode int, perm uint32) (fd syscall.Handle, err error) {
if len(path) == 0 {
return syscall.InvalidHandle, syscall.ERROR_FILE_NOT_FOUND
}
pathp, err := syscall.UTF16PtrFromString(path)
if err != nil {
return syscall.InvalidHandle, err
}
var access uint32
switch mode & (syscall.O_RDONLY | syscall.O_WRONLY | syscall.O_RDWR) {
case syscall.O_RDONLY:
access = syscall.GENERIC_READ
case syscall.O_WRONLY:
access = syscall.GENERIC_WRITE
case syscall.O_RDWR:
access = syscall.GENERIC_READ | syscall.GENERIC_WRITE
}
if mode&syscall.O_CREAT != 0 {
access |= syscall.GENERIC_WRITE
}
if mode&syscall.O_APPEND != 0 {
access &^= syscall.GENERIC_WRITE
access |= syscall.FILE_APPEND_DATA
}
sharemode := uint32(syscall.FILE_SHARE_READ | syscall.FILE_SHARE_WRITE | syscall.FILE_SHARE_DELETE)
var sa *syscall.SecurityAttributes
if mode&syscall.O_CLOEXEC == 0 {
sa = makeInheritSa()
}
var createmode uint32
switch {
case mode&(syscall.O_CREAT|syscall.O_EXCL) == (syscall.O_CREAT | syscall.O_EXCL):
createmode = syscall.CREATE_NEW
case mode&(syscall.O_CREAT|syscall.O_TRUNC) == (syscall.O_CREAT | syscall.O_TRUNC):
createmode = syscall.CREATE_ALWAYS
case mode&syscall.O_CREAT == syscall.O_CREAT:
createmode = syscall.OPEN_ALWAYS
case mode&syscall.O_TRUNC == syscall.O_TRUNC:
createmode = syscall.TRUNCATE_EXISTING
default:
createmode = syscall.OPEN_EXISTING
}
h, e := syscall.CreateFile(pathp, access, sharemode, sa, createmode, syscall.FILE_ATTRIBUTE_NORMAL, 0)
return h, e
}
// https://github.com/jnwhiteh/golang/blob/master/src/pkg/syscall/syscall_windows.go#L211
func makeInheritSa() *syscall.SecurityAttributes {
var sa syscall.SecurityAttributes
sa.Length = uint32(unsafe.Sizeof(sa))
sa.InheritHandle = 1
return &sa
}
// https://github.com/jnwhiteh/golang/blob/master/src/pkg/os/file_windows.go#L133
func OpenFile(name string, flag int, perm os.FileMode) (file *os.File, err error) {
r, e := Open(name, flag|syscall.O_CLOEXEC, syscallMode(perm))
if e != nil {
return nil, e
}
return os.NewFile(uintptr(r), name), nil
}
// https://github.com/jnwhiteh/golang/blob/master/src/pkg/os/file_posix.go#L61
func syscallMode(i os.FileMode) (o uint32) {
o |= uint32(i.Perm())
if i&os.ModeSetuid != 0 {
o |= syscall.S_ISUID
}
if i&os.ModeSetgid != 0 {
o |= syscall.S_ISGID
}
if i&os.ModeSticky != 0 {
o |= syscall.S_ISVTX
}
// No mapping for Go's ModeTemporary (plan9 only).
return
}

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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe

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language: go
go:
- tip

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The MIT License (MIT)
Copyright (c) 2014 Armon Dadgar
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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go-radix [![Build Status](https://travis-ci.org/armon/go-radix.png)](https://travis-ci.org/armon/go-radix)
=========
Provides the `radix` package that implements a [radix tree](http://en.wikipedia.org/wiki/Radix_tree).
The package only provides a single `Tree` implementation, optimized for sparse nodes.
As a radix tree, it provides the following:
* O(k) operations. In many cases, this can be faster than a hash table since
the hash function is an O(k) operation, and hash tables have very poor cache locality.
* Minimum / Maximum value lookups
* Ordered iteration
For an immutable variant, see [go-immutable-radix](https://github.com/hashicorp/go-immutable-radix).
Documentation
=============
The full documentation is available on [Godoc](http://godoc.org/github.com/armon/go-radix).
Example
=======
Below is a simple example of usage
```go
// Create a tree
r := radix.New()
r.Insert("foo", 1)
r.Insert("bar", 2)
r.Insert("foobar", 2)
// Find the longest prefix match
m, _, _ := r.LongestPrefix("foozip")
if m != "foo" {
panic("should be foo")
}
```

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package radix
import (
"sort"
"strings"
)
// WalkFn is used when walking the tree. Takes a
// key and value, returning if iteration should
// be terminated.
type WalkFn func(s string, v interface{}) bool
// leafNode is used to represent a value
type leafNode struct {
key string
val interface{}
}
// edge is used to represent an edge node
type edge struct {
label byte
node *node
}
type node struct {
// leaf is used to store possible leaf
leaf *leafNode
// prefix is the common prefix we ignore
prefix string
// Edges should be stored in-order for iteration.
// We avoid a fully materialized slice to save memory,
// since in most cases we expect to be sparse
edges edges
}
func (n *node) isLeaf() bool {
return n.leaf != nil
}
func (n *node) addEdge(e edge) {
n.edges = append(n.edges, e)
n.edges.Sort()
}
func (n *node) replaceEdge(e edge) {
num := len(n.edges)
idx := sort.Search(num, func(i int) bool {
return n.edges[i].label >= e.label
})
if idx < num && n.edges[idx].label == e.label {
n.edges[idx].node = e.node
return
}
panic("replacing missing edge")
}
func (n *node) getEdge(label byte) *node {
num := len(n.edges)
idx := sort.Search(num, func(i int) bool {
return n.edges[i].label >= label
})
if idx < num && n.edges[idx].label == label {
return n.edges[idx].node
}
return nil
}
func (n *node) delEdge(label byte) {
num := len(n.edges)
idx := sort.Search(num, func(i int) bool {
return n.edges[i].label >= label
})
if idx < num && n.edges[idx].label == label {
copy(n.edges[idx:], n.edges[idx+1:])
n.edges[len(n.edges)-1] = edge{}
n.edges = n.edges[:len(n.edges)-1]
}
}
type edges []edge
func (e edges) Len() int {
return len(e)
}
func (e edges) Less(i, j int) bool {
return e[i].label < e[j].label
}
func (e edges) Swap(i, j int) {
e[i], e[j] = e[j], e[i]
}
func (e edges) Sort() {
sort.Sort(e)
}
// Tree implements a radix tree. This can be treated as a
// Dictionary abstract data type. The main advantage over
// a standard hash map is prefix-based lookups and
// ordered iteration,
type Tree struct {
root *node
size int
}
// New returns an empty Tree
func New() *Tree {
return NewFromMap(nil)
}
// NewFromMap returns a new tree containing the keys
// from an existing map
func NewFromMap(m map[string]interface{}) *Tree {
t := &Tree{root: &node{}}
for k, v := range m {
t.Insert(k, v)
}
return t
}
// Len is used to return the number of elements in the tree
func (t *Tree) Len() int {
return t.size
}
// longestPrefix finds the length of the shared prefix
// of two strings
func longestPrefix(k1, k2 string) int {
max := len(k1)
if l := len(k2); l < max {
max = l
}
var i int
for i = 0; i < max; i++ {
if k1[i] != k2[i] {
break
}
}
return i
}
// Insert is used to add a newentry or update
// an existing entry. Returns if updated.
func (t *Tree) Insert(s string, v interface{}) (interface{}, bool) {
var parent *node
n := t.root
search := s
for {
// Handle key exhaution
if len(search) == 0 {
if n.isLeaf() {
old := n.leaf.val
n.leaf.val = v
return old, true
}
n.leaf = &leafNode{
key: s,
val: v,
}
t.size++
return nil, false
}
// Look for the edge
parent = n
n = n.getEdge(search[0])
// No edge, create one
if n == nil {
e := edge{
label: search[0],
node: &node{
leaf: &leafNode{
key: s,
val: v,
},
prefix: search,
},
}
parent.addEdge(e)
t.size++
return nil, false
}
// Determine longest prefix of the search key on match
commonPrefix := longestPrefix(search, n.prefix)
if commonPrefix == len(n.prefix) {
search = search[commonPrefix:]
continue
}
// Split the node
t.size++
child := &node{
prefix: search[:commonPrefix],
}
parent.replaceEdge(edge{
label: search[0],
node: child,
})
// Restore the existing node
child.addEdge(edge{
label: n.prefix[commonPrefix],
node: n,
})
n.prefix = n.prefix[commonPrefix:]
// Create a new leaf node
leaf := &leafNode{
key: s,
val: v,
}
// If the new key is a subset, add to to this node
search = search[commonPrefix:]
if len(search) == 0 {
child.leaf = leaf
return nil, false
}
// Create a new edge for the node
child.addEdge(edge{
label: search[0],
node: &node{
leaf: leaf,
prefix: search,
},
})
return nil, false
}
}
// Delete is used to delete a key, returning the previous
// value and if it was deleted
func (t *Tree) Delete(s string) (interface{}, bool) {
var parent *node
var label byte
n := t.root
search := s
for {
// Check for key exhaution
if len(search) == 0 {
if !n.isLeaf() {
break
}
goto DELETE
}
// Look for an edge
parent = n
label = search[0]
n = n.getEdge(label)
if n == nil {
break
}
// Consume the search prefix
if strings.HasPrefix(search, n.prefix) {
search = search[len(n.prefix):]
} else {
break
}
}
return nil, false
DELETE:
// Delete the leaf
leaf := n.leaf
n.leaf = nil
t.size--
// Check if we should delete this node from the parent
if parent != nil && len(n.edges) == 0 {
parent.delEdge(label)
}
// Check if we should merge this node
if n != t.root && len(n.edges) == 1 {
n.mergeChild()
}
// Check if we should merge the parent's other child
if parent != nil && parent != t.root && len(parent.edges) == 1 && !parent.isLeaf() {
parent.mergeChild()
}
return leaf.val, true
}
func (n *node) mergeChild() {
e := n.edges[0]
child := e.node
n.prefix = n.prefix + child.prefix
n.leaf = child.leaf
n.edges = child.edges
}
// Get is used to lookup a specific key, returning
// the value and if it was found
func (t *Tree) Get(s string) (interface{}, bool) {
n := t.root
search := s
for {
// Check for key exhaution
if len(search) == 0 {
if n.isLeaf() {
return n.leaf.val, true
}
break
}
// Look for an edge
n = n.getEdge(search[0])
if n == nil {
break
}
// Consume the search prefix
if strings.HasPrefix(search, n.prefix) {
search = search[len(n.prefix):]
} else {
break
}
}
return nil, false
}
// LongestPrefix is like Get, but instead of an
// exact match, it will return the longest prefix match.
func (t *Tree) LongestPrefix(s string) (string, interface{}, bool) {
var last *leafNode
n := t.root
search := s
for {
// Look for a leaf node
if n.isLeaf() {
last = n.leaf
}
// Check for key exhaution
if len(search) == 0 {
break
}
// Look for an edge
n = n.getEdge(search[0])
if n == nil {
break
}
// Consume the search prefix
if strings.HasPrefix(search, n.prefix) {
search = search[len(n.prefix):]
} else {
break
}
}
if last != nil {
return last.key, last.val, true
}
return "", nil, false
}
// Minimum is used to return the minimum value in the tree
func (t *Tree) Minimum() (string, interface{}, bool) {
n := t.root
for {
if n.isLeaf() {
return n.leaf.key, n.leaf.val, true
}
if len(n.edges) > 0 {
n = n.edges[0].node
} else {
break
}
}
return "", nil, false
}
// Maximum is used to return the maximum value in the tree
func (t *Tree) Maximum() (string, interface{}, bool) {
n := t.root
for {
if num := len(n.edges); num > 0 {
n = n.edges[num-1].node
continue
}
if n.isLeaf() {
return n.leaf.key, n.leaf.val, true
}
break
}
return "", nil, false
}
// Walk is used to walk the tree
func (t *Tree) Walk(fn WalkFn) {
recursiveWalk(t.root, fn)
}
// WalkPrefix is used to walk the tree under a prefix
func (t *Tree) WalkPrefix(prefix string, fn WalkFn) {
n := t.root
search := prefix
for {
// Check for key exhaution
if len(search) == 0 {
recursiveWalk(n, fn)
return
}
// Look for an edge
n = n.getEdge(search[0])
if n == nil {
break
}
// Consume the search prefix
if strings.HasPrefix(search, n.prefix) {
search = search[len(n.prefix):]
} else if strings.HasPrefix(n.prefix, search) {
// Child may be under our search prefix
recursiveWalk(n, fn)
return
} else {
break
}
}
}
// WalkPath is used to walk the tree, but only visiting nodes
// from the root down to a given leaf. Where WalkPrefix walks
// all the entries *under* the given prefix, this walks the
// entries *above* the given prefix.
func (t *Tree) WalkPath(path string, fn WalkFn) {
n := t.root
search := path
for {
// Visit the leaf values if any
if n.leaf != nil && fn(n.leaf.key, n.leaf.val) {
return
}
// Check for key exhaution
if len(search) == 0 {
return
}
// Look for an edge
n = n.getEdge(search[0])
if n == nil {
return
}
// Consume the search prefix
if strings.HasPrefix(search, n.prefix) {
search = search[len(n.prefix):]
} else {
break
}
}
}
// recursiveWalk is used to do a pre-order walk of a node
// recursively. Returns true if the walk should be aborted
func recursiveWalk(n *node, fn WalkFn) bool {
// Visit the leaf values if any
if n.leaf != nil && fn(n.leaf.key, n.leaf.val) {
return true
}
// Recurse on the children
for _, e := range n.edges {
if recursiveWalk(e.node, fn) {
return true
}
}
return false
}
// ToMap is used to walk the tree and convert it into a map
func (t *Tree) ToMap() map[string]interface{} {
out := make(map[string]interface{}, t.size)
t.Walk(func(k string, v interface{}) bool {
out[k] = v
return false
})
return out
}

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
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outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
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transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
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the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
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designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
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2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
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Work and such Derivative Works in Source or Object form.
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this License, each Contributor hereby grants to You a perpetual,
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(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
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(d) If the Work includes a "NOTICE" text file as part of its
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of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
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within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
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risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
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Licensed under the Apache License, Version 2.0 (the "License");
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3
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AWS SDK for Go
Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
Copyright 2014-2015 Stripe, Inc.

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// Package awserr represents API error interface accessors for the SDK.
package awserr
// An Error wraps lower level errors with code, message and an original error.
// The underlying concrete error type may also satisfy other interfaces which
// can be to used to obtain more specific information about the error.
//
// Calling Error() or String() will always include the full information about
// an error based on its underlying type.
//
// Example:
//
// output, err := s3manage.Upload(svc, input, opts)
// if err != nil {
// if awsErr, ok := err.(awserr.Error); ok {
// // Get error details
// log.Println("Error:", awsErr.Code(), awsErr.Message())
//
// // Prints out full error message, including original error if there was one.
// log.Println("Error:", awsErr.Error())
//
// // Get original error
// if origErr := awsErr.OrigErr(); origErr != nil {
// // operate on original error.
// }
// } else {
// fmt.Println(err.Error())
// }
// }
//
type Error interface {
// Satisfy the generic error interface.
error
// Returns the short phrase depicting the classification of the error.
Code() string
// Returns the error details message.
Message() string
// Returns the original error if one was set. Nil is returned if not set.
OrigErr() error
}
// BatchError is a batch of errors which also wraps lower level errors with code, message,
// and original errors. Calling Error() will only return the error that is at the end
// of the list.
type BatchError interface {
// Satisfy the generic error interface.
error
// Returns the short phrase depicting the classification of the error.
Code() string
// Returns the error details message.
Message() string
// Returns the original error if one was set. Nil is returned if not set.
OrigErrs() []error
}
// New returns an Error object described by the code, message, and origErr.
//
// If origErr satisfies the Error interface it will not be wrapped within a new
// Error object and will instead be returned.
func New(code, message string, origErr error) Error {
if e, ok := origErr.(Error); ok && e != nil {
return e
}
return newBaseError(code, message, origErr)
}
// NewBatchError returns an baseError with an expectation of an array of errors
func NewBatchError(code, message string, errs []error) BatchError {
return newBaseErrors(code, message, errs)
}
// A RequestFailure is an interface to extract request failure information from
// an Error such as the request ID of the failed request returned by a service.
// RequestFailures may not always have a requestID value if the request failed
// prior to reaching the service such as a connection error.
//
// Example:
//
// output, err := s3manage.Upload(svc, input, opts)
// if err != nil {
// if reqerr, ok := err.(RequestFailure); ok {
// log.Printf("Request failed", reqerr.Code(), reqerr.Message(), reqerr.RequestID())
// } else {
// log.Printf("Error:", err.Error()
// }
// }
//
// Combined with awserr.Error:
//
// output, err := s3manage.Upload(svc, input, opts)
// if err != nil {
// if awsErr, ok := err.(awserr.Error); ok {
// // Generic AWS Error with Code, Message, and original error (if any)
// fmt.Println(awsErr.Code(), awsErr.Message(), awsErr.OrigErr())
//
// if reqErr, ok := err.(awserr.RequestFailure); ok {
// // A service error occurred
// fmt.Println(reqErr.StatusCode(), reqErr.RequestID())
// }
// } else {
// fmt.Println(err.Error())
// }
// }
//
type RequestFailure interface {
Error
// The status code of the HTTP response.
StatusCode() int
// The request ID returned by the service for a request failure. This will
// be empty if no request ID is available such as the request failed due
// to a connection error.
RequestID() string
}
// NewRequestFailure returns a new request error wrapper for the given Error
// provided.
func NewRequestFailure(err Error, statusCode int, reqID string) RequestFailure {
return newRequestError(err, statusCode, reqID)
}

197
vendor/github.com/aws/aws-sdk-go/aws/awserr/types.go generated vendored Normal file
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package awserr
import "fmt"
// SprintError returns a string of the formatted error code.
//
// Both extra and origErr are optional. If they are included their lines
// will be added, but if they are not included their lines will be ignored.
func SprintError(code, message, extra string, origErr error) string {
msg := fmt.Sprintf("%s: %s", code, message)
if extra != "" {
msg = fmt.Sprintf("%s\n\t%s", msg, extra)
}
if origErr != nil {
msg = fmt.Sprintf("%s\ncaused by: %s", msg, origErr.Error())
}
return msg
}
// A baseError wraps the code and message which defines an error. It also
// can be used to wrap an original error object.
//
// Should be used as the root for errors satisfying the awserr.Error. Also
// for any error which does not fit into a specific error wrapper type.
type baseError struct {
// Classification of error
code string
// Detailed information about error
message string
// Optional original error this error is based off of. Allows building
// chained errors.
errs []error
}
// newBaseError returns an error object for the code, message, and err.
//
// code is a short no whitespace phrase depicting the classification of
// the error that is being created.
//
// message is the free flow string containing detailed information about the error.
//
// origErr is the error object which will be nested under the new error to be returned.
func newBaseError(code, message string, origErr error) *baseError {
b := &baseError{
code: code,
message: message,
}
if origErr != nil {
b.errs = append(b.errs, origErr)
}
return b
}
// newBaseErrors returns an error object for the code, message, and errors.
//
// code is a short no whitespace phrase depicting the classification of
// the error that is being created.
//
// message is the free flow string containing detailed information about the error.
//
// origErrs is the error objects which will be nested under the new errors to be returned.
func newBaseErrors(code, message string, origErrs []error) *baseError {
b := &baseError{
code: code,
message: message,
errs: origErrs,
}
return b
}
// Error returns the string representation of the error.
//
// See ErrorWithExtra for formatting.
//
// Satisfies the error interface.
func (b baseError) Error() string {
size := len(b.errs)
if size > 0 {
return SprintError(b.code, b.message, "", errorList(b.errs))
}
return SprintError(b.code, b.message, "", nil)
}
// String returns the string representation of the error.
// Alias for Error to satisfy the stringer interface.
func (b baseError) String() string {
return b.Error()
}
// Code returns the short phrase depicting the classification of the error.
func (b baseError) Code() string {
return b.code
}
// Message returns the error details message.
func (b baseError) Message() string {
return b.message
}
// OrigErr returns the original error if one was set. Nil is returned if no error
// was set. This only returns the first element in the list. If the full list is
// needed, use BatchError
func (b baseError) OrigErr() error {
if size := len(b.errs); size > 0 {
return b.errs[0]
}
return nil
}
// OrigErrs returns the original errors if one was set. An empty slice is returned if
// no error was set:w
func (b baseError) OrigErrs() []error {
return b.errs
}
// So that the Error interface type can be included as an anonymous field
// in the requestError struct and not conflict with the error.Error() method.
type awsError Error
// A requestError wraps a request or service error.
//
// Composed of baseError for code, message, and original error.
type requestError struct {
awsError
statusCode int
requestID string
}
// newRequestError returns a wrapped error with additional information for request
// status code, and service requestID.
//
// Should be used to wrap all request which involve service requests. Even if
// the request failed without a service response, but had an HTTP status code
// that may be meaningful.
//
// Also wraps original errors via the baseError.
func newRequestError(err Error, statusCode int, requestID string) *requestError {
return &requestError{
awsError: err,
statusCode: statusCode,
requestID: requestID,
}
}
// Error returns the string representation of the error.
// Satisfies the error interface.
func (r requestError) Error() string {
extra := fmt.Sprintf("status code: %d, request id: %s",
r.statusCode, r.requestID)
return SprintError(r.Code(), r.Message(), extra, r.OrigErr())
}
// String returns the string representation of the error.
// Alias for Error to satisfy the stringer interface.
func (r requestError) String() string {
return r.Error()
}
// StatusCode returns the wrapped status code for the error
func (r requestError) StatusCode() int {
return r.statusCode
}
// RequestID returns the wrapped requestID
func (r requestError) RequestID() string {
return r.requestID
}
// An error list that satisfies the golang interface
type errorList []error
// Error returns the string representation of the error.
//
// Satisfies the error interface.
func (e errorList) Error() string {
msg := ""
// How do we want to handle the array size being zero
if size := len(e); size > 0 {
for i := 0; i < size; i++ {
msg += fmt.Sprintf("%s", e[i].Error())
// We check the next index to see if it is within the slice.
// If it is, then we append a newline. We do this, because unit tests
// could be broken with the additional '\n'
if i+1 < size {
msg += "\n"
}
}
}
return msg
}

100
vendor/github.com/aws/aws-sdk-go/aws/awsutil/copy.go generated vendored Normal file
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package awsutil
import (
"io"
"reflect"
)
// Copy deeply copies a src structure to dst. Useful for copying request and
// response structures.
//
// Can copy between structs of different type, but will only copy fields which
// are assignable, and exist in both structs. Fields which are not assignable,
// or do not exist in both structs are ignored.
func Copy(dst, src interface{}) {
dstval := reflect.ValueOf(dst)
if !dstval.IsValid() {
panic("Copy dst cannot be nil")
}
rcopy(dstval, reflect.ValueOf(src), true)
}
// CopyOf returns a copy of src while also allocating the memory for dst.
// src must be a pointer type or this operation will fail.
func CopyOf(src interface{}) (dst interface{}) {
dsti := reflect.New(reflect.TypeOf(src).Elem())
dst = dsti.Interface()
rcopy(dsti, reflect.ValueOf(src), true)
return
}
// rcopy performs a recursive copy of values from the source to destination.
//
// root is used to skip certain aspects of the copy which are not valid
// for the root node of a object.
func rcopy(dst, src reflect.Value, root bool) {
if !src.IsValid() {
return
}
switch src.Kind() {
case reflect.Ptr:
if _, ok := src.Interface().(io.Reader); ok {
if dst.Kind() == reflect.Ptr && dst.Elem().CanSet() {
dst.Elem().Set(src)
} else if dst.CanSet() {
dst.Set(src)
}
} else {
e := src.Type().Elem()
if dst.CanSet() && !src.IsNil() {
dst.Set(reflect.New(e))
}
if src.Elem().IsValid() {
// Keep the current root state since the depth hasn't changed
rcopy(dst.Elem(), src.Elem(), root)
}
}
case reflect.Struct:
t := dst.Type()
for i := 0; i < t.NumField(); i++ {
name := t.Field(i).Name
srcVal := src.FieldByName(name)
dstVal := dst.FieldByName(name)
if srcVal.IsValid() && dstVal.CanSet() {
rcopy(dstVal, srcVal, false)
}
}
case reflect.Slice:
if src.IsNil() {
break
}
s := reflect.MakeSlice(src.Type(), src.Len(), src.Cap())
dst.Set(s)
for i := 0; i < src.Len(); i++ {
rcopy(dst.Index(i), src.Index(i), false)
}
case reflect.Map:
if src.IsNil() {
break
}
s := reflect.MakeMap(src.Type())
dst.Set(s)
for _, k := range src.MapKeys() {
v := src.MapIndex(k)
v2 := reflect.New(v.Type()).Elem()
rcopy(v2, v, false)
dst.SetMapIndex(k, v2)
}
default:
// Assign the value if possible. If its not assignable, the value would
// need to be converted and the impact of that may be unexpected, or is
// not compatible with the dst type.
if src.Type().AssignableTo(dst.Type()) {
dst.Set(src)
}
}
}

27
vendor/github.com/aws/aws-sdk-go/aws/awsutil/equal.go generated vendored Normal file
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@ -0,0 +1,27 @@
package awsutil
import (
"reflect"
)
// DeepEqual returns if the two values are deeply equal like reflect.DeepEqual.
// In addition to this, this method will also dereference the input values if
// possible so the DeepEqual performed will not fail if one parameter is a
// pointer and the other is not.
//
// DeepEqual will not perform indirection of nested values of the input parameters.
func DeepEqual(a, b interface{}) bool {
ra := reflect.Indirect(reflect.ValueOf(a))
rb := reflect.Indirect(reflect.ValueOf(b))
if raValid, rbValid := ra.IsValid(), rb.IsValid(); !raValid && !rbValid {
// If the elements are both nil, and of the same type the are equal
// If they are of different types they are not equal
return reflect.TypeOf(a) == reflect.TypeOf(b)
} else if raValid != rbValid {
// Both values must be valid to be equal
return false
}
return reflect.DeepEqual(ra.Interface(), rb.Interface())
}

222
vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go generated vendored Normal file
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package awsutil
import (
"reflect"
"regexp"
"strconv"
"strings"
"github.com/jmespath/go-jmespath"
)
var indexRe = regexp.MustCompile(`(.+)\[(-?\d+)?\]$`)
// rValuesAtPath returns a slice of values found in value v. The values
// in v are explored recursively so all nested values are collected.
func rValuesAtPath(v interface{}, path string, createPath, caseSensitive, nilTerm bool) []reflect.Value {
pathparts := strings.Split(path, "||")
if len(pathparts) > 1 {
for _, pathpart := range pathparts {
vals := rValuesAtPath(v, pathpart, createPath, caseSensitive, nilTerm)
if len(vals) > 0 {
return vals
}
}
return nil
}
values := []reflect.Value{reflect.Indirect(reflect.ValueOf(v))}
components := strings.Split(path, ".")
for len(values) > 0 && len(components) > 0 {
var index *int64
var indexStar bool
c := strings.TrimSpace(components[0])
if c == "" { // no actual component, illegal syntax
return nil
} else if caseSensitive && c != "*" && strings.ToLower(c[0:1]) == c[0:1] {
// TODO normalize case for user
return nil // don't support unexported fields
}
// parse this component
if m := indexRe.FindStringSubmatch(c); m != nil {
c = m[1]
if m[2] == "" {
index = nil
indexStar = true
} else {
i, _ := strconv.ParseInt(m[2], 10, 32)
index = &i
indexStar = false
}
}
nextvals := []reflect.Value{}
for _, value := range values {
// pull component name out of struct member
if value.Kind() != reflect.Struct {
continue
}
if c == "*" { // pull all members
for i := 0; i < value.NumField(); i++ {
if f := reflect.Indirect(value.Field(i)); f.IsValid() {
nextvals = append(nextvals, f)
}
}
continue
}
value = value.FieldByNameFunc(func(name string) bool {
if c == name {
return true
} else if !caseSensitive && strings.ToLower(name) == strings.ToLower(c) {
return true
}
return false
})
if nilTerm && value.Kind() == reflect.Ptr && len(components[1:]) == 0 {
if !value.IsNil() {
value.Set(reflect.Zero(value.Type()))
}
return []reflect.Value{value}
}
if createPath && value.Kind() == reflect.Ptr && value.IsNil() {
// TODO if the value is the terminus it should not be created
// if the value to be set to its position is nil.
value.Set(reflect.New(value.Type().Elem()))
value = value.Elem()
} else {
value = reflect.Indirect(value)
}
if value.Kind() == reflect.Slice || value.Kind() == reflect.Map {
if !createPath && value.IsNil() {
value = reflect.ValueOf(nil)
}
}
if value.IsValid() {
nextvals = append(nextvals, value)
}
}
values = nextvals
if indexStar || index != nil {
nextvals = []reflect.Value{}
for _, value := range values {
value := reflect.Indirect(value)
if value.Kind() != reflect.Slice {
continue
}
if indexStar { // grab all indices
for i := 0; i < value.Len(); i++ {
idx := reflect.Indirect(value.Index(i))
if idx.IsValid() {
nextvals = append(nextvals, idx)
}
}
continue
}
// pull out index
i := int(*index)
if i >= value.Len() { // check out of bounds
if createPath {
// TODO resize slice
} else {
continue
}
} else if i < 0 { // support negative indexing
i = value.Len() + i
}
value = reflect.Indirect(value.Index(i))
if value.Kind() == reflect.Slice || value.Kind() == reflect.Map {
if !createPath && value.IsNil() {
value = reflect.ValueOf(nil)
}
}
if value.IsValid() {
nextvals = append(nextvals, value)
}
}
values = nextvals
}
components = components[1:]
}
return values
}
// ValuesAtPath returns a list of values at the case insensitive lexical
// path inside of a structure.
func ValuesAtPath(i interface{}, path string) ([]interface{}, error) {
result, err := jmespath.Search(path, i)
if err != nil {
return nil, err
}
v := reflect.ValueOf(result)
if !v.IsValid() || (v.Kind() == reflect.Ptr && v.IsNil()) {
return nil, nil
}
if s, ok := result.([]interface{}); ok {
return s, err
}
if v.Kind() == reflect.Map && v.Len() == 0 {
return nil, nil
}
if v.Kind() == reflect.Slice {
out := make([]interface{}, v.Len())
for i := 0; i < v.Len(); i++ {
out[i] = v.Index(i).Interface()
}
return out, nil
}
return []interface{}{result}, nil
}
// SetValueAtPath sets a value at the case insensitive lexical path inside
// of a structure.
func SetValueAtPath(i interface{}, path string, v interface{}) {
if rvals := rValuesAtPath(i, path, true, false, v == nil); rvals != nil {
for _, rval := range rvals {
if rval.Kind() == reflect.Ptr && rval.IsNil() {
continue
}
setValue(rval, v)
}
}
}
func setValue(dstVal reflect.Value, src interface{}) {
if dstVal.Kind() == reflect.Ptr {
dstVal = reflect.Indirect(dstVal)
}
srcVal := reflect.ValueOf(src)
if !srcVal.IsValid() { // src is literal nil
if dstVal.CanAddr() {
// Convert to pointer so that pointer's value can be nil'ed
// dstVal = dstVal.Addr()
}
dstVal.Set(reflect.Zero(dstVal.Type()))
} else if srcVal.Kind() == reflect.Ptr {
if srcVal.IsNil() {
srcVal = reflect.Zero(dstVal.Type())
} else {
srcVal = reflect.ValueOf(src).Elem()
}
dstVal.Set(srcVal)
} else {
dstVal.Set(srcVal)
}
}

103
vendor/github.com/aws/aws-sdk-go/aws/awsutil/prettify.go generated vendored Normal file
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package awsutil
import (
"bytes"
"fmt"
"io"
"reflect"
"strings"
)
// Prettify returns the string representation of a value.
func Prettify(i interface{}) string {
var buf bytes.Buffer
prettify(reflect.ValueOf(i), 0, &buf)
return buf.String()
}
// prettify will recursively walk value v to build a textual
// representation of the value.
func prettify(v reflect.Value, indent int, buf *bytes.Buffer) {
for v.Kind() == reflect.Ptr {
v = v.Elem()
}
switch v.Kind() {
case reflect.Struct:
strtype := v.Type().String()
if strtype == "time.Time" {
fmt.Fprintf(buf, "%s", v.Interface())
break
} else if strings.HasPrefix(strtype, "io.") {
buf.WriteString("<buffer>")
break
}
buf.WriteString("{\n")
names := []string{}
for i := 0; i < v.Type().NumField(); i++ {
name := v.Type().Field(i).Name
f := v.Field(i)
if name[0:1] == strings.ToLower(name[0:1]) {
continue // ignore unexported fields
}
if (f.Kind() == reflect.Ptr || f.Kind() == reflect.Slice || f.Kind() == reflect.Map) && f.IsNil() {
continue // ignore unset fields
}
names = append(names, name)
}
for i, n := range names {
val := v.FieldByName(n)
buf.WriteString(strings.Repeat(" ", indent+2))
buf.WriteString(n + ": ")
prettify(val, indent+2, buf)
if i < len(names)-1 {
buf.WriteString(",\n")
}
}
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
case reflect.Slice:
nl, id, id2 := "", "", ""
if v.Len() > 3 {
nl, id, id2 = "\n", strings.Repeat(" ", indent), strings.Repeat(" ", indent+2)
}
buf.WriteString("[" + nl)
for i := 0; i < v.Len(); i++ {
buf.WriteString(id2)
prettify(v.Index(i), indent+2, buf)
if i < v.Len()-1 {
buf.WriteString("," + nl)
}
}
buf.WriteString(nl + id + "]")
case reflect.Map:
buf.WriteString("{\n")
for i, k := range v.MapKeys() {
buf.WriteString(strings.Repeat(" ", indent+2))
buf.WriteString(k.String() + ": ")
prettify(v.MapIndex(k), indent+2, buf)
if i < v.Len()-1 {
buf.WriteString(",\n")
}
}
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
default:
format := "%v"
switch v.Interface().(type) {
case string:
format = "%q"
case io.ReadSeeker, io.Reader:
format = "buffer(%p)"
}
fmt.Fprintf(buf, format, v.Interface())
}
}

89
vendor/github.com/aws/aws-sdk-go/aws/awsutil/string_value.go generated vendored Normal file
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@ -0,0 +1,89 @@
package awsutil
import (
"bytes"
"fmt"
"reflect"
"strings"
)
// StringValue returns the string representation of a value.
func StringValue(i interface{}) string {
var buf bytes.Buffer
stringValue(reflect.ValueOf(i), 0, &buf)
return buf.String()
}
func stringValue(v reflect.Value, indent int, buf *bytes.Buffer) {
for v.Kind() == reflect.Ptr {
v = v.Elem()
}
switch v.Kind() {
case reflect.Struct:
buf.WriteString("{\n")
names := []string{}
for i := 0; i < v.Type().NumField(); i++ {
name := v.Type().Field(i).Name
f := v.Field(i)
if name[0:1] == strings.ToLower(name[0:1]) {
continue // ignore unexported fields
}
if (f.Kind() == reflect.Ptr || f.Kind() == reflect.Slice) && f.IsNil() {
continue // ignore unset fields
}
names = append(names, name)
}
for i, n := range names {
val := v.FieldByName(n)
buf.WriteString(strings.Repeat(" ", indent+2))
buf.WriteString(n + ": ")
stringValue(val, indent+2, buf)
if i < len(names)-1 {
buf.WriteString(",\n")
}
}
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
case reflect.Slice:
nl, id, id2 := "", "", ""
if v.Len() > 3 {
nl, id, id2 = "\n", strings.Repeat(" ", indent), strings.Repeat(" ", indent+2)
}
buf.WriteString("[" + nl)
for i := 0; i < v.Len(); i++ {
buf.WriteString(id2)
stringValue(v.Index(i), indent+2, buf)
if i < v.Len()-1 {
buf.WriteString("," + nl)
}
}
buf.WriteString(nl + id + "]")
case reflect.Map:
buf.WriteString("{\n")
for i, k := range v.MapKeys() {
buf.WriteString(strings.Repeat(" ", indent+2))
buf.WriteString(k.String() + ": ")
stringValue(v.MapIndex(k), indent+2, buf)
if i < v.Len()-1 {
buf.WriteString(",\n")
}
}
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
default:
format := "%v"
switch v.Interface().(type) {
case string:
format = "%q"
}
fmt.Fprintf(buf, format, v.Interface())
}
}

120
vendor/github.com/aws/aws-sdk-go/aws/client/client.go generated vendored Normal file
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package client
import (
"fmt"
"io/ioutil"
"net/http/httputil"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/request"
)
// A Config provides configuration to a service client instance.
type Config struct {
Config *aws.Config
Handlers request.Handlers
Endpoint, SigningRegion string
}
// ConfigProvider provides a generic way for a service client to receive
// the ClientConfig without circular dependencies.
type ConfigProvider interface {
ClientConfig(serviceName string, cfgs ...*aws.Config) Config
}
// A Client implements the base client request and response handling
// used by all service clients.
type Client struct {
request.Retryer
metadata.ClientInfo
Config aws.Config
Handlers request.Handlers
}
// New will return a pointer to a new initialized service client.
func New(cfg aws.Config, info metadata.ClientInfo, handlers request.Handlers, options ...func(*Client)) *Client {
svc := &Client{
Config: cfg,
ClientInfo: info,
Handlers: handlers,
}
switch retryer, ok := cfg.Retryer.(request.Retryer); {
case ok:
svc.Retryer = retryer
case cfg.Retryer != nil && cfg.Logger != nil:
s := fmt.Sprintf("WARNING: %T does not implement request.Retryer; using DefaultRetryer instead", cfg.Retryer)
cfg.Logger.Log(s)
fallthrough
default:
maxRetries := aws.IntValue(cfg.MaxRetries)
if cfg.MaxRetries == nil || maxRetries == aws.UseServiceDefaultRetries {
maxRetries = 3
}
svc.Retryer = DefaultRetryer{NumMaxRetries: maxRetries}
}
svc.AddDebugHandlers()
for _, option := range options {
option(svc)
}
return svc
}
// NewRequest returns a new Request pointer for the service API
// operation and parameters.
func (c *Client) NewRequest(operation *request.Operation, params interface{}, data interface{}) *request.Request {
return request.New(c.Config, c.ClientInfo, c.Handlers, c.Retryer, operation, params, data)
}
// AddDebugHandlers injects debug logging handlers into the service to log request
// debug information.
func (c *Client) AddDebugHandlers() {
if !c.Config.LogLevel.AtLeast(aws.LogDebug) {
return
}
c.Handlers.Send.PushFront(logRequest)
c.Handlers.Send.PushBack(logResponse)
}
const logReqMsg = `DEBUG: Request %s/%s Details:
---[ REQUEST POST-SIGN ]-----------------------------
%s
-----------------------------------------------------`
func logRequest(r *request.Request) {
logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody)
dumpedBody, _ := httputil.DumpRequestOut(r.HTTPRequest, logBody)
if logBody {
// Reset the request body because dumpRequest will re-wrap the r.HTTPRequest's
// Body as a NoOpCloser and will not be reset after read by the HTTP
// client reader.
r.Body.Seek(r.BodyStart, 0)
r.HTTPRequest.Body = ioutil.NopCloser(r.Body)
}
r.Config.Logger.Log(fmt.Sprintf(logReqMsg, r.ClientInfo.ServiceName, r.Operation.Name, string(dumpedBody)))
}
const logRespMsg = `DEBUG: Response %s/%s Details:
---[ RESPONSE ]--------------------------------------
%s
-----------------------------------------------------`
func logResponse(r *request.Request) {
var msg = "no response data"
if r.HTTPResponse != nil {
logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody)
dumpedBody, _ := httputil.DumpResponse(r.HTTPResponse, logBody)
msg = string(dumpedBody)
} else if r.Error != nil {
msg = r.Error.Error()
}
r.Config.Logger.Log(fmt.Sprintf(logRespMsg, r.ClientInfo.ServiceName, r.Operation.Name, msg))
}

45
vendor/github.com/aws/aws-sdk-go/aws/client/default_retryer.go generated vendored Normal file
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package client
import (
"math"
"math/rand"
"time"
"github.com/aws/aws-sdk-go/aws/request"
)
// DefaultRetryer implements basic retry logic using exponential backoff for
// most services. If you want to implement custom retry logic, implement the
// request.Retryer interface or create a structure type that composes this
// struct and override the specific methods. For example, to override only
// the MaxRetries method:
//
// type retryer struct {
// service.DefaultRetryer
// }
//
// // This implementation always has 100 max retries
// func (d retryer) MaxRetries() uint { return 100 }
type DefaultRetryer struct {
NumMaxRetries int
}
// MaxRetries returns the number of maximum returns the service will use to make
// an individual API request.
func (d DefaultRetryer) MaxRetries() int {
return d.NumMaxRetries
}
// RetryRules returns the delay duration before retrying this request again
func (d DefaultRetryer) RetryRules(r *request.Request) time.Duration {
delay := int(math.Pow(2, float64(r.RetryCount))) * (rand.Intn(30) + 30)
return time.Duration(delay) * time.Millisecond
}
// ShouldRetry returns if the request should be retried.
func (d DefaultRetryer) ShouldRetry(r *request.Request) bool {
if r.HTTPResponse.StatusCode >= 500 {
return true
}
return r.IsErrorRetryable()
}

12
vendor/github.com/aws/aws-sdk-go/aws/client/metadata/client_info.go generated vendored Normal file
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@ -0,0 +1,12 @@
package metadata
// ClientInfo wraps immutable data from the client.Client structure.
type ClientInfo struct {
ServiceName string
APIVersion string
Endpoint string
SigningName string
SigningRegion string
JSONVersion string
TargetPrefix string
}

311
vendor/github.com/aws/aws-sdk-go/aws/config.go generated vendored Normal file
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package aws
import (
"net/http"
"time"
"github.com/aws/aws-sdk-go/aws/credentials"
)
// UseServiceDefaultRetries instructs the config to use the service's own default
// number of retries. This will be the default action if Config.MaxRetries
// is nil also.
const UseServiceDefaultRetries = -1
// RequestRetryer is an alias for a type that implements the request.Retryer interface.
type RequestRetryer interface{}
// A Config provides service configuration for service clients. By default,
// all clients will use the {defaults.DefaultConfig} structure.
type Config struct {
// Enables verbose error printing of all credential chain errors.
// Should be used when wanting to see all errors while attempting to retreive
// credentials.
CredentialsChainVerboseErrors *bool
// The credentials object to use when signing requests. Defaults to
// a chain of credential providers to search for credentials in environment
// variables, shared credential file, and EC2 Instance Roles.
Credentials *credentials.Credentials
// An optional endpoint URL (hostname only or fully qualified URI)
// that overrides the default generated endpoint for a client. Set this
// to `""` to use the default generated endpoint.
//
// @note You must still provide a `Region` value when specifying an
// endpoint for a client.
Endpoint *string
// The region to send requests to. This parameter is required and must
// be configured globally or on a per-client basis unless otherwise
// noted. A full list of regions is found in the "Regions and Endpoints"
// document.
//
// @see http://docs.aws.amazon.com/general/latest/gr/rande.html
// AWS Regions and Endpoints
Region *string
// Set this to `true` to disable SSL when sending requests. Defaults
// to `false`.
DisableSSL *bool
// The HTTP client to use when sending requests. Defaults to
// `http.DefaultClient`.
HTTPClient *http.Client
// An integer value representing the logging level. The default log level
// is zero (LogOff), which represents no logging. To enable logging set
// to a LogLevel Value.
LogLevel *LogLevelType
// The logger writer interface to write logging messages to. Defaults to
// standard out.
Logger Logger
// The maximum number of times that a request will be retried for failures.
// Defaults to -1, which defers the max retry setting to the service specific
// configuration.
MaxRetries *int
// Retryer guides how HTTP requests should be retried in case of recoverable failures.
//
// When nil or the value does not implement the request.Retryer interface,
// the request.DefaultRetryer will be used.
//
// When both Retryer and MaxRetries are non-nil, the former is used and
// the latter ignored.
//
// To set the Retryer field in a type-safe manner and with chaining, use
// the request.WithRetryer helper function:
//
// cfg := request.WithRetryer(aws.NewConfig(), myRetryer)
//
Retryer RequestRetryer
// Disables semantic parameter validation, which validates input for missing
// required fields and/or other semantic request input errors.
DisableParamValidation *bool
// Disables the computation of request and response checksums, e.g.,
// CRC32 checksums in Amazon DynamoDB.
DisableComputeChecksums *bool
// Set this to `true` to force the request to use path-style addressing,
// i.e., `http://s3.amazonaws.com/BUCKET/KEY`. By default, the S3 client will
// use virtual hosted bucket addressing when possible
// (`http://BUCKET.s3.amazonaws.com/KEY`).
//
// @note This configuration option is specific to the Amazon S3 service.
// @see http://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html
// Amazon S3: Virtual Hosting of Buckets
S3ForcePathStyle *bool
// Set this to `true` to disable the EC2Metadata client from overriding the
// default http.Client's Timeout. This is helpful if you do not want the EC2Metadata
// client to create a new http.Client. This options is only meaningful if you're not
// already using a custom HTTP client with the SDK. Enabled by default.
//
// Must be set and provided to the session.New() in order to disable the EC2Metadata
// overriding the timeout for default credentials chain.
//
// Example:
// sess := session.New(aws.NewConfig().WithEC2MetadataDiableTimeoutOverride(true))
// svc := s3.New(sess)
//
EC2MetadataDisableTimeoutOverride *bool
SleepDelay func(time.Duration)
}
// NewConfig returns a new Config pointer that can be chained with builder methods to
// set multiple configuration values inline without using pointers.
//
// svc := s3.New(aws.NewConfig().WithRegion("us-west-2").WithMaxRetries(10))
//
func NewConfig() *Config {
return &Config{}
}
// WithCredentialsChainVerboseErrors sets a config verbose errors boolean and returning
// a Config pointer.
func (c *Config) WithCredentialsChainVerboseErrors(verboseErrs bool) *Config {
c.CredentialsChainVerboseErrors = &verboseErrs
return c
}
// WithCredentials sets a config Credentials value returning a Config pointer
// for chaining.
func (c *Config) WithCredentials(creds *credentials.Credentials) *Config {
c.Credentials = creds
return c
}
// WithEndpoint sets a config Endpoint value returning a Config pointer for
// chaining.
func (c *Config) WithEndpoint(endpoint string) *Config {
c.Endpoint = &endpoint
return c
}
// WithRegion sets a config Region value returning a Config pointer for
// chaining.
func (c *Config) WithRegion(region string) *Config {
c.Region = &region
return c
}
// WithDisableSSL sets a config DisableSSL value returning a Config pointer
// for chaining.
func (c *Config) WithDisableSSL(disable bool) *Config {
c.DisableSSL = &disable
return c
}
// WithHTTPClient sets a config HTTPClient value returning a Config pointer
// for chaining.
func (c *Config) WithHTTPClient(client *http.Client) *Config {
c.HTTPClient = client
return c
}
// WithMaxRetries sets a config MaxRetries value returning a Config pointer
// for chaining.
func (c *Config) WithMaxRetries(max int) *Config {
c.MaxRetries = &max
return c
}
// WithDisableParamValidation sets a config DisableParamValidation value
// returning a Config pointer for chaining.
func (c *Config) WithDisableParamValidation(disable bool) *Config {
c.DisableParamValidation = &disable
return c
}
// WithDisableComputeChecksums sets a config DisableComputeChecksums value
// returning a Config pointer for chaining.
func (c *Config) WithDisableComputeChecksums(disable bool) *Config {
c.DisableComputeChecksums = &disable
return c
}
// WithLogLevel sets a config LogLevel value returning a Config pointer for
// chaining.
func (c *Config) WithLogLevel(level LogLevelType) *Config {
c.LogLevel = &level
return c
}
// WithLogger sets a config Logger value returning a Config pointer for
// chaining.
func (c *Config) WithLogger(logger Logger) *Config {
c.Logger = logger
return c
}
// WithS3ForcePathStyle sets a config S3ForcePathStyle value returning a Config
// pointer for chaining.
func (c *Config) WithS3ForcePathStyle(force bool) *Config {
c.S3ForcePathStyle = &force
return c
}
// WithEC2MetadataDisableTimeoutOverride sets a config EC2MetadataDisableTimeoutOverride value
// returning a Config pointer for chaining.
func (c *Config) WithEC2MetadataDisableTimeoutOverride(enable bool) *Config {
c.EC2MetadataDisableTimeoutOverride = &enable
return c
}
// WithSleepDelay overrides the function used to sleep while waiting for the
// next retry. Defaults to time.Sleep.
func (c *Config) WithSleepDelay(fn func(time.Duration)) *Config {
c.SleepDelay = fn
return c
}
// MergeIn merges the passed in configs into the existing config object.
func (c *Config) MergeIn(cfgs ...*Config) {
for _, other := range cfgs {
mergeInConfig(c, other)
}
}
func mergeInConfig(dst *Config, other *Config) {
if other == nil {
return
}
if other.CredentialsChainVerboseErrors != nil {
dst.CredentialsChainVerboseErrors = other.CredentialsChainVerboseErrors
}
if other.Credentials != nil {
dst.Credentials = other.Credentials
}
if other.Endpoint != nil {
dst.Endpoint = other.Endpoint
}
if other.Region != nil {
dst.Region = other.Region
}
if other.DisableSSL != nil {
dst.DisableSSL = other.DisableSSL
}
if other.HTTPClient != nil {
dst.HTTPClient = other.HTTPClient
}
if other.LogLevel != nil {
dst.LogLevel = other.LogLevel
}
if other.Logger != nil {
dst.Logger = other.Logger
}
if other.MaxRetries != nil {
dst.MaxRetries = other.MaxRetries
}
if other.Retryer != nil {
dst.Retryer = other.Retryer
}
if other.DisableParamValidation != nil {
dst.DisableParamValidation = other.DisableParamValidation
}
if other.DisableComputeChecksums != nil {
dst.DisableComputeChecksums = other.DisableComputeChecksums
}
if other.S3ForcePathStyle != nil {
dst.S3ForcePathStyle = other.S3ForcePathStyle
}
if other.EC2MetadataDisableTimeoutOverride != nil {
dst.EC2MetadataDisableTimeoutOverride = other.EC2MetadataDisableTimeoutOverride
}
if other.SleepDelay != nil {
dst.SleepDelay = other.SleepDelay
}
}
// Copy will return a shallow copy of the Config object. If any additional
// configurations are provided they will be merged into the new config returned.
func (c *Config) Copy(cfgs ...*Config) *Config {
dst := &Config{}
dst.MergeIn(c)
for _, cfg := range cfgs {
dst.MergeIn(cfg)
}
return dst
}

357
vendor/github.com/aws/aws-sdk-go/aws/convert_types.go generated vendored Normal file
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package aws
import "time"
// String returns a pointer to of the string value passed in.
func String(v string) *string {
return &v
}
// StringValue returns the value of the string pointer passed in or
// "" if the pointer is nil.
func StringValue(v *string) string {
if v != nil {
return *v
}
return ""
}
// StringSlice converts a slice of string values into a slice of
// string pointers
func StringSlice(src []string) []*string {
dst := make([]*string, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// StringValueSlice converts a slice of string pointers into a slice of
// string values
func StringValueSlice(src []*string) []string {
dst := make([]string, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// StringMap converts a string map of string values into a string
// map of string pointers
func StringMap(src map[string]string) map[string]*string {
dst := make(map[string]*string)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// StringValueMap converts a string map of string pointers into a string
// map of string values
func StringValueMap(src map[string]*string) map[string]string {
dst := make(map[string]string)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Bool returns a pointer to of the bool value passed in.
func Bool(v bool) *bool {
return &v
}
// BoolValue returns the value of the bool pointer passed in or
// false if the pointer is nil.
func BoolValue(v *bool) bool {
if v != nil {
return *v
}
return false
}
// BoolSlice converts a slice of bool values into a slice of
// bool pointers
func BoolSlice(src []bool) []*bool {
dst := make([]*bool, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// BoolValueSlice converts a slice of bool pointers into a slice of
// bool values
func BoolValueSlice(src []*bool) []bool {
dst := make([]bool, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// BoolMap converts a string map of bool values into a string
// map of bool pointers
func BoolMap(src map[string]bool) map[string]*bool {
dst := make(map[string]*bool)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// BoolValueMap converts a string map of bool pointers into a string
// map of bool values
func BoolValueMap(src map[string]*bool) map[string]bool {
dst := make(map[string]bool)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Int returns a pointer to of the int value passed in.
func Int(v int) *int {
return &v
}
// IntValue returns the value of the int pointer passed in or
// 0 if the pointer is nil.
func IntValue(v *int) int {
if v != nil {
return *v
}
return 0
}
// IntSlice converts a slice of int values into a slice of
// int pointers
func IntSlice(src []int) []*int {
dst := make([]*int, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// IntValueSlice converts a slice of int pointers into a slice of
// int values
func IntValueSlice(src []*int) []int {
dst := make([]int, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// IntMap converts a string map of int values into a string
// map of int pointers
func IntMap(src map[string]int) map[string]*int {
dst := make(map[string]*int)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// IntValueMap converts a string map of int pointers into a string
// map of int values
func IntValueMap(src map[string]*int) map[string]int {
dst := make(map[string]int)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Int64 returns a pointer to of the int64 value passed in.
func Int64(v int64) *int64 {
return &v
}
// Int64Value returns the value of the int64 pointer passed in or
// 0 if the pointer is nil.
func Int64Value(v *int64) int64 {
if v != nil {
return *v
}
return 0
}
// Int64Slice converts a slice of int64 values into a slice of
// int64 pointers
func Int64Slice(src []int64) []*int64 {
dst := make([]*int64, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// Int64ValueSlice converts a slice of int64 pointers into a slice of
// int64 values
func Int64ValueSlice(src []*int64) []int64 {
dst := make([]int64, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// Int64Map converts a string map of int64 values into a string
// map of int64 pointers
func Int64Map(src map[string]int64) map[string]*int64 {
dst := make(map[string]*int64)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// Int64ValueMap converts a string map of int64 pointers into a string
// map of int64 values
func Int64ValueMap(src map[string]*int64) map[string]int64 {
dst := make(map[string]int64)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Float64 returns a pointer to of the float64 value passed in.
func Float64(v float64) *float64 {
return &v
}
// Float64Value returns the value of the float64 pointer passed in or
// 0 if the pointer is nil.
func Float64Value(v *float64) float64 {
if v != nil {
return *v
}
return 0
}
// Float64Slice converts a slice of float64 values into a slice of
// float64 pointers
func Float64Slice(src []float64) []*float64 {
dst := make([]*float64, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// Float64ValueSlice converts a slice of float64 pointers into a slice of
// float64 values
func Float64ValueSlice(src []*float64) []float64 {
dst := make([]float64, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// Float64Map converts a string map of float64 values into a string
// map of float64 pointers
func Float64Map(src map[string]float64) map[string]*float64 {
dst := make(map[string]*float64)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// Float64ValueMap converts a string map of float64 pointers into a string
// map of float64 values
func Float64ValueMap(src map[string]*float64) map[string]float64 {
dst := make(map[string]float64)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}
// Time returns a pointer to of the time.Time value passed in.
func Time(v time.Time) *time.Time {
return &v
}
// TimeValue returns the value of the time.Time pointer passed in or
// time.Time{} if the pointer is nil.
func TimeValue(v *time.Time) time.Time {
if v != nil {
return *v
}
return time.Time{}
}
// TimeSlice converts a slice of time.Time values into a slice of
// time.Time pointers
func TimeSlice(src []time.Time) []*time.Time {
dst := make([]*time.Time, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// TimeValueSlice converts a slice of time.Time pointers into a slice of
// time.Time values
func TimeValueSlice(src []*time.Time) []time.Time {
dst := make([]time.Time, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// TimeMap converts a string map of time.Time values into a string
// map of time.Time pointers
func TimeMap(src map[string]time.Time) map[string]*time.Time {
dst := make(map[string]*time.Time)
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// TimeValueMap converts a string map of time.Time pointers into a string
// map of time.Time values
func TimeValueMap(src map[string]*time.Time) map[string]time.Time {
dst := make(map[string]time.Time)
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}

139
vendor/github.com/aws/aws-sdk-go/aws/corehandlers/handlers.go generated vendored Normal file
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package corehandlers
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"regexp"
"runtime"
"strconv"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// Interface for matching types which also have a Len method.
type lener interface {
Len() int
}
// BuildContentLengthHandler builds the content length of a request based on the body,
// or will use the HTTPRequest.Header's "Content-Length" if defined. If unable
// to determine request body length and no "Content-Length" was specified it will panic.
var BuildContentLengthHandler = request.NamedHandler{Name: "core.BuildContentLengthHandler", Fn: func(r *request.Request) {
if slength := r.HTTPRequest.Header.Get("Content-Length"); slength != "" {
length, _ := strconv.ParseInt(slength, 10, 64)
r.HTTPRequest.ContentLength = length
return
}
var length int64
switch body := r.Body.(type) {
case nil:
length = 0
case lener:
length = int64(body.Len())
case io.Seeker:
r.BodyStart, _ = body.Seek(0, 1)
end, _ := body.Seek(0, 2)
body.Seek(r.BodyStart, 0) // make sure to seek back to original location
length = end - r.BodyStart
default:
panic("Cannot get length of body, must provide `ContentLength`")
}
r.HTTPRequest.ContentLength = length
r.HTTPRequest.Header.Set("Content-Length", fmt.Sprintf("%d", length))
}}
// SDKVersionUserAgentHandler is a request handler for adding the SDK Version to the user agent.
var SDKVersionUserAgentHandler = request.NamedHandler{
Name: "core.SDKVersionUserAgentHandler",
Fn: request.MakeAddToUserAgentHandler(aws.SDKName, aws.SDKVersion,
runtime.Version(), runtime.GOOS, runtime.GOARCH),
}
var reStatusCode = regexp.MustCompile(`^(\d{3})`)
// SendHandler is a request handler to send service request using HTTP client.
var SendHandler = request.NamedHandler{Name: "core.SendHandler", Fn: func(r *request.Request) {
var err error
r.HTTPResponse, err = r.Config.HTTPClient.Do(r.HTTPRequest)
if err != nil {
// Capture the case where url.Error is returned for error processing
// response. e.g. 301 without location header comes back as string
// error and r.HTTPResponse is nil. Other url redirect errors will
// comeback in a similar method.
if e, ok := err.(*url.Error); ok && e.Err != nil {
if s := reStatusCode.FindStringSubmatch(e.Err.Error()); s != nil {
code, _ := strconv.ParseInt(s[1], 10, 64)
r.HTTPResponse = &http.Response{
StatusCode: int(code),
Status: http.StatusText(int(code)),
Body: ioutil.NopCloser(bytes.NewReader([]byte{})),
}
return
}
}
if r.HTTPResponse == nil {
// Add a dummy request response object to ensure the HTTPResponse
// value is consistent.
r.HTTPResponse = &http.Response{
StatusCode: int(0),
Status: http.StatusText(int(0)),
Body: ioutil.NopCloser(bytes.NewReader([]byte{})),
}
}
// Catch all other request errors.
r.Error = awserr.New("RequestError", "send request failed", err)
r.Retryable = aws.Bool(true) // network errors are retryable
}
}}
// ValidateResponseHandler is a request handler to validate service response.
var ValidateResponseHandler = request.NamedHandler{Name: "core.ValidateResponseHandler", Fn: func(r *request.Request) {
if r.HTTPResponse.StatusCode == 0 || r.HTTPResponse.StatusCode >= 300 {
// this may be replaced by an UnmarshalError handler
r.Error = awserr.New("UnknownError", "unknown error", nil)
}
}}
// AfterRetryHandler performs final checks to determine if the request should
// be retried and how long to delay.
var AfterRetryHandler = request.NamedHandler{Name: "core.AfterRetryHandler", Fn: func(r *request.Request) {
// If one of the other handlers already set the retry state
// we don't want to override it based on the service's state
if r.Retryable == nil {
r.Retryable = aws.Bool(r.ShouldRetry(r))
}
if r.WillRetry() {
r.RetryDelay = r.RetryRules(r)
r.Config.SleepDelay(r.RetryDelay)
// when the expired token exception occurs the credentials
// need to be expired locally so that the next request to
// get credentials will trigger a credentials refresh.
if r.IsErrorExpired() {
r.Config.Credentials.Expire()
}
r.RetryCount++
r.Error = nil
}
}}
// ValidateEndpointHandler is a request handler to validate a request had the
// appropriate Region and Endpoint set. Will set r.Error if the endpoint or
// region is not valid.
var ValidateEndpointHandler = request.NamedHandler{Name: "core.ValidateEndpointHandler", Fn: func(r *request.Request) {
if r.ClientInfo.SigningRegion == "" && aws.StringValue(r.Config.Region) == "" {
r.Error = aws.ErrMissingRegion
} else if r.ClientInfo.Endpoint == "" {
r.Error = aws.ErrMissingEndpoint
}
}}

144
vendor/github.com/aws/aws-sdk-go/aws/corehandlers/param_validator.go generated vendored Normal file
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package corehandlers
import (
"fmt"
"reflect"
"strconv"
"strings"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// ValidateParametersHandler is a request handler to validate the input parameters.
// Validating parameters only has meaning if done prior to the request being sent.
var ValidateParametersHandler = request.NamedHandler{Name: "core.ValidateParametersHandler", Fn: func(r *request.Request) {
if r.ParamsFilled() {
v := validator{errors: []string{}}
v.validateAny(reflect.ValueOf(r.Params), "")
if count := len(v.errors); count > 0 {
format := "%d validation errors:\n- %s"
msg := fmt.Sprintf(format, count, strings.Join(v.errors, "\n- "))
r.Error = awserr.New("InvalidParameter", msg, nil)
}
}
}}
// A validator validates values. Collects validations errors which occurs.
type validator struct {
errors []string
}
// validateAny will validate any struct, slice or map type. All validations
// are also performed recursively for nested types.
func (v *validator) validateAny(value reflect.Value, path string) {
value = reflect.Indirect(value)
if !value.IsValid() {
return
}
switch value.Kind() {
case reflect.Struct:
v.validateStruct(value, path)
case reflect.Slice:
for i := 0; i < value.Len(); i++ {
v.validateAny(value.Index(i), path+fmt.Sprintf("[%d]", i))
}
case reflect.Map:
for _, n := range value.MapKeys() {
v.validateAny(value.MapIndex(n), path+fmt.Sprintf("[%q]", n.String()))
}
}
}
// validateStruct will validate the struct value's fields. If the structure has
// nested types those types will be validated also.
func (v *validator) validateStruct(value reflect.Value, path string) {
prefix := "."
if path == "" {
prefix = ""
}
for i := 0; i < value.Type().NumField(); i++ {
f := value.Type().Field(i)
if strings.ToLower(f.Name[0:1]) == f.Name[0:1] {
continue
}
fvalue := value.FieldByName(f.Name)
err := validateField(f, fvalue, validateFieldRequired, validateFieldMin)
if err != nil {
v.errors = append(v.errors, fmt.Sprintf("%s: %s", err.Error(), path+prefix+f.Name))
continue
}
v.validateAny(fvalue, path+prefix+f.Name)
}
}
type validatorFunc func(f reflect.StructField, fvalue reflect.Value) error
func validateField(f reflect.StructField, fvalue reflect.Value, funcs ...validatorFunc) error {
for _, fn := range funcs {
if err := fn(f, fvalue); err != nil {
return err
}
}
return nil
}
// Validates that a field has a valid value provided for required fields.
func validateFieldRequired(f reflect.StructField, fvalue reflect.Value) error {
if f.Tag.Get("required") == "" {
return nil
}
switch fvalue.Kind() {
case reflect.Ptr, reflect.Slice, reflect.Map:
if fvalue.IsNil() {
return fmt.Errorf("missing required parameter")
}
default:
if !fvalue.IsValid() {
return fmt.Errorf("missing required parameter")
}
}
return nil
}
// Validates that if a value is provided for a field, that value must be at
// least a minimum length.
func validateFieldMin(f reflect.StructField, fvalue reflect.Value) error {
minStr := f.Tag.Get("min")
if minStr == "" {
return nil
}
min, _ := strconv.ParseInt(minStr, 10, 64)
kind := fvalue.Kind()
if kind == reflect.Ptr {
if fvalue.IsNil() {
return nil
}
fvalue = fvalue.Elem()
}
switch fvalue.Kind() {
case reflect.String:
if int64(fvalue.Len()) < min {
return fmt.Errorf("field too short, minimum length %d", min)
}
case reflect.Slice, reflect.Map:
if fvalue.IsNil() {
return nil
}
if int64(fvalue.Len()) < min {
return fmt.Errorf("field too short, minimum length %d", min)
}
// TODO min can also apply to number minimum value.
}
return nil
}

100
vendor/github.com/aws/aws-sdk-go/aws/credentials/chain_provider.go generated vendored Normal file
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package credentials
import (
"github.com/aws/aws-sdk-go/aws/awserr"
)
var (
// ErrNoValidProvidersFoundInChain Is returned when there are no valid
// providers in the ChainProvider.
//
// This has been deprecated. For verbose error messaging set
// aws.Config.CredentialsChainVerboseErrors to true
//
// @readonly
ErrNoValidProvidersFoundInChain = awserr.New("NoCredentialProviders",
`no valid providers in chain. Deprecated.
For verbose messaging see aws.Config.CredentialsChainVerboseErrors`,
nil)
)
// A ChainProvider will search for a provider which returns credentials
// and cache that provider until Retrieve is called again.
//
// The ChainProvider provides a way of chaining multiple providers together
// which will pick the first available using priority order of the Providers
// in the list.
//
// If none of the Providers retrieve valid credentials Value, ChainProvider's
// Retrieve() will return the error ErrNoValidProvidersFoundInChain.
//
// If a Provider is found which returns valid credentials Value ChainProvider
// will cache that Provider for all calls to IsExpired(), until Retrieve is
// called again.
//
// Example of ChainProvider to be used with an EnvProvider and EC2RoleProvider.
// In this example EnvProvider will first check if any credentials are available
// vai the environment variables. If there are none ChainProvider will check
// the next Provider in the list, EC2RoleProvider in this case. If EC2RoleProvider
// does not return any credentials ChainProvider will return the error
// ErrNoValidProvidersFoundInChain
//
// creds := NewChainCredentials(
// []Provider{
// &EnvProvider{},
// &EC2RoleProvider{
// Client: ec2metadata.New(sess),
// },
// })
//
// // Usage of ChainCredentials with aws.Config
// svc := ec2.New(&aws.Config{Credentials: creds})
//
type ChainProvider struct {
Providers []Provider
curr Provider
VerboseErrors bool
}
// NewChainCredentials returns a pointer to a new Credentials object
// wrapping a chain of providers.
func NewChainCredentials(providers []Provider) *Credentials {
return NewCredentials(&ChainProvider{
Providers: append([]Provider{}, providers...),
})
}
// Retrieve returns the credentials value or error if no provider returned
// without error.
//
// If a provider is found it will be cached and any calls to IsExpired()
// will return the expired state of the cached provider.
func (c *ChainProvider) Retrieve() (Value, error) {
var errs []error
for _, p := range c.Providers {
creds, err := p.Retrieve()
if err == nil {
c.curr = p
return creds, nil
}
errs = append(errs, err)
}
c.curr = nil
var err error
err = ErrNoValidProvidersFoundInChain
if c.VerboseErrors {
err = awserr.NewBatchError("NoCredentialProviders", "no valid providers in chain", errs)
}
return Value{}, err
}
// IsExpired will returned the expired state of the currently cached provider
// if there is one. If there is no current provider, true will be returned.
func (c *ChainProvider) IsExpired() bool {
if c.curr != nil {
return c.curr.IsExpired()
}
return true
}

223
vendor/github.com/aws/aws-sdk-go/aws/credentials/credentials.go generated vendored Normal file
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// Package credentials provides credential retrieval and management
//
// The Credentials is the primary method of getting access to and managing
// credentials Values. Using dependency injection retrieval of the credential
// values is handled by a object which satisfies the Provider interface.
//
// By default the Credentials.Get() will cache the successful result of a
// Provider's Retrieve() until Provider.IsExpired() returns true. At which
// point Credentials will call Provider's Retrieve() to get new credential Value.
//
// The Provider is responsible for determining when credentials Value have expired.
// It is also important to note that Credentials will always call Retrieve the
// first time Credentials.Get() is called.
//
// Example of using the environment variable credentials.
//
// creds := NewEnvCredentials()
//
// // Retrieve the credentials value
// credValue, err := creds.Get()
// if err != nil {
// // handle error
// }
//
// Example of forcing credentials to expire and be refreshed on the next Get().
// This may be helpful to proactively expire credentials and refresh them sooner
// than they would naturally expire on their own.
//
// creds := NewCredentials(&EC2RoleProvider{})
// creds.Expire()
// credsValue, err := creds.Get()
// // New credentials will be retrieved instead of from cache.
//
//
// Custom Provider
//
// Each Provider built into this package also provides a helper method to generate
// a Credentials pointer setup with the provider. To use a custom Provider just
// create a type which satisfies the Provider interface and pass it to the
// NewCredentials method.
//
// type MyProvider struct{}
// func (m *MyProvider) Retrieve() (Value, error) {...}
// func (m *MyProvider) IsExpired() bool {...}
//
// creds := NewCredentials(&MyProvider{})
// credValue, err := creds.Get()
//
package credentials
import (
"sync"
"time"
)
// AnonymousCredentials is an empty Credential object that can be used as
// dummy placeholder credentials for requests that do not need signed.
//
// This Credentials can be used to configure a service to not sign requests
// when making service API calls. For example, when accessing public
// s3 buckets.
//
// svc := s3.New(&aws.Config{Credentials: AnonymousCredentials})
// // Access public S3 buckets.
//
// @readonly
var AnonymousCredentials = NewStaticCredentials("", "", "")
// A Value is the AWS credentials value for individual credential fields.
type Value struct {
// AWS Access key ID
AccessKeyID string
// AWS Secret Access Key
SecretAccessKey string
// AWS Session Token
SessionToken string
// Provider used to get credentials
ProviderName string
}
// A Provider is the interface for any component which will provide credentials
// Value. A provider is required to manage its own Expired state, and what to
// be expired means.
//
// The Provider should not need to implement its own mutexes, because
// that will be managed by Credentials.
type Provider interface {
// Refresh returns nil if it successfully retrieved the value.
// Error is returned if the value were not obtainable, or empty.
Retrieve() (Value, error)
// IsExpired returns if the credentials are no longer valid, and need
// to be retrieved.
IsExpired() bool
}
// A Expiry provides shared expiration logic to be used by credentials
// providers to implement expiry functionality.
//
// The best method to use this struct is as an anonymous field within the
// provider's struct.
//
// Example:
// type EC2RoleProvider struct {
// Expiry
// ...
// }
type Expiry struct {
// The date/time when to expire on
expiration time.Time
// If set will be used by IsExpired to determine the current time.
// Defaults to time.Now if CurrentTime is not set. Available for testing
// to be able to mock out the current time.
CurrentTime func() time.Time
}
// SetExpiration sets the expiration IsExpired will check when called.
//
// If window is greater than 0 the expiration time will be reduced by the
// window value.
//
// Using a window is helpful to trigger credentials to expire sooner than
// the expiration time given to ensure no requests are made with expired
// tokens.
func (e *Expiry) SetExpiration(expiration time.Time, window time.Duration) {
e.expiration = expiration
if window > 0 {
e.expiration = e.expiration.Add(-window)
}
}
// IsExpired returns if the credentials are expired.
func (e *Expiry) IsExpired() bool {
if e.CurrentTime == nil {
e.CurrentTime = time.Now
}
return e.expiration.Before(e.CurrentTime())
}
// A Credentials provides synchronous safe retrieval of AWS credentials Value.
// Credentials will cache the credentials value until they expire. Once the value
// expires the next Get will attempt to retrieve valid credentials.
//
// Credentials is safe to use across multiple goroutines and will manage the
// synchronous state so the Providers do not need to implement their own
// synchronization.
//
// The first Credentials.Get() will always call Provider.Retrieve() to get the
// first instance of the credentials Value. All calls to Get() after that
// will return the cached credentials Value until IsExpired() returns true.
type Credentials struct {
creds Value
forceRefresh bool
m sync.Mutex
provider Provider
}
// NewCredentials returns a pointer to a new Credentials with the provider set.
func NewCredentials(provider Provider) *Credentials {
return &Credentials{
provider: provider,
forceRefresh: true,
}
}
// Get returns the credentials value, or error if the credentials Value failed
// to be retrieved.
//
// Will return the cached credentials Value if it has not expired. If the
// credentials Value has expired the Provider's Retrieve() will be called
// to refresh the credentials.
//
// If Credentials.Expire() was called the credentials Value will be force
// expired, and the next call to Get() will cause them to be refreshed.
func (c *Credentials) Get() (Value, error) {
c.m.Lock()
defer c.m.Unlock()
if c.isExpired() {
creds, err := c.provider.Retrieve()
if err != nil {
return Value{}, err
}
c.creds = creds
c.forceRefresh = false
}
return c.creds, nil
}
// Expire expires the credentials and forces them to be retrieved on the
// next call to Get().
//
// This will override the Provider's expired state, and force Credentials
// to call the Provider's Retrieve().
func (c *Credentials) Expire() {
c.m.Lock()
defer c.m.Unlock()
c.forceRefresh = true
}
// IsExpired returns if the credentials are no longer valid, and need
// to be retrieved.
//
// If the Credentials were forced to be expired with Expire() this will
// reflect that override.
func (c *Credentials) IsExpired() bool {
c.m.Lock()
defer c.m.Unlock()
return c.isExpired()
}
// isExpired helper method wrapping the definition of expired credentials.
func (c *Credentials) isExpired() bool {
return c.forceRefresh || c.provider.IsExpired()
}

178
vendor/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go generated vendored Normal file
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package ec2rolecreds
import (
"bufio"
"encoding/json"
"fmt"
"path"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/ec2metadata"
)
// ProviderName provides a name of EC2Role provider
const ProviderName = "EC2RoleProvider"
// A EC2RoleProvider retrieves credentials from the EC2 service, and keeps track if
// those credentials are expired.
//
// Example how to configure the EC2RoleProvider with custom http Client, Endpoint
// or ExpiryWindow
//
// p := &ec2rolecreds.EC2RoleProvider{
// // Pass in a custom timeout to be used when requesting
// // IAM EC2 Role credentials.
// Client: ec2metadata.New(sess, aws.Config{
// HTTPClient: &http.Client{Timeout: 10 * time.Second},
// }),
//
// // Do not use early expiry of credentials. If a non zero value is
// // specified the credentials will be expired early
// ExpiryWindow: 0,
// }
type EC2RoleProvider struct {
credentials.Expiry
// Required EC2Metadata client to use when connecting to EC2 metadata service.
Client *ec2metadata.EC2Metadata
// ExpiryWindow will allow the credentials to trigger refreshing prior to
// the credentials actually expiring. This is beneficial so race conditions
// with expiring credentials do not cause request to fail unexpectedly
// due to ExpiredTokenException exceptions.
//
// So a ExpiryWindow of 10s would cause calls to IsExpired() to return true
// 10 seconds before the credentials are actually expired.
//
// If ExpiryWindow is 0 or less it will be ignored.
ExpiryWindow time.Duration
}
// NewCredentials returns a pointer to a new Credentials object wrapping
// the EC2RoleProvider. Takes a ConfigProvider to create a EC2Metadata client.
// The ConfigProvider is satisfied by the session.Session type.
func NewCredentials(c client.ConfigProvider, options ...func(*EC2RoleProvider)) *credentials.Credentials {
p := &EC2RoleProvider{
Client: ec2metadata.New(c),
}
for _, option := range options {
option(p)
}
return credentials.NewCredentials(p)
}
// NewCredentialsWithClient returns a pointer to a new Credentials object wrapping
// the EC2RoleProvider. Takes a EC2Metadata client to use when connecting to EC2
// metadata service.
func NewCredentialsWithClient(client *ec2metadata.EC2Metadata, options ...func(*EC2RoleProvider)) *credentials.Credentials {
p := &EC2RoleProvider{
Client: client,
}
for _, option := range options {
option(p)
}
return credentials.NewCredentials(p)
}
// Retrieve retrieves credentials from the EC2 service.
// Error will be returned if the request fails, or unable to extract
// the desired credentials.
func (m *EC2RoleProvider) Retrieve() (credentials.Value, error) {
credsList, err := requestCredList(m.Client)
if err != nil {
return credentials.Value{ProviderName: ProviderName}, err
}
if len(credsList) == 0 {
return credentials.Value{ProviderName: ProviderName}, awserr.New("EmptyEC2RoleList", "empty EC2 Role list", nil)
}
credsName := credsList[0]
roleCreds, err := requestCred(m.Client, credsName)
if err != nil {
return credentials.Value{ProviderName: ProviderName}, err
}
m.SetExpiration(roleCreds.Expiration, m.ExpiryWindow)
return credentials.Value{
AccessKeyID: roleCreds.AccessKeyID,
SecretAccessKey: roleCreds.SecretAccessKey,
SessionToken: roleCreds.Token,
ProviderName: ProviderName,
}, nil
}
// A ec2RoleCredRespBody provides the shape for unmarshalling credential
// request responses.
type ec2RoleCredRespBody struct {
// Success State
Expiration time.Time
AccessKeyID string
SecretAccessKey string
Token string
// Error state
Code string
Message string
}
const iamSecurityCredsPath = "/iam/security-credentials"
// requestCredList requests a list of credentials from the EC2 service.
// If there are no credentials, or there is an error making or receiving the request
func requestCredList(client *ec2metadata.EC2Metadata) ([]string, error) {
resp, err := client.GetMetadata(iamSecurityCredsPath)
if err != nil {
return nil, awserr.New("EC2RoleRequestError", "failed to list EC2 Roles", err)
}
credsList := []string{}
s := bufio.NewScanner(strings.NewReader(resp))
for s.Scan() {
credsList = append(credsList, s.Text())
}
if err := s.Err(); err != nil {
return nil, awserr.New("SerializationError", "failed to read list of EC2 Roles", err)
}
return credsList, nil
}
// requestCred requests the credentials for a specific credentials from the EC2 service.
//
// If the credentials cannot be found, or there is an error reading the response
// and error will be returned.
func requestCred(client *ec2metadata.EC2Metadata, credsName string) (ec2RoleCredRespBody, error) {
resp, err := client.GetMetadata(path.Join(iamSecurityCredsPath, credsName))
if err != nil {
return ec2RoleCredRespBody{},
awserr.New("EC2RoleRequestError",
fmt.Sprintf("failed to get %s EC2 Role credentials", credsName),
err)
}
respCreds := ec2RoleCredRespBody{}
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&respCreds); err != nil {
return ec2RoleCredRespBody{},
awserr.New("SerializationError",
fmt.Sprintf("failed to decode %s EC2 Role credentials", credsName),
err)
}
if respCreds.Code != "Success" {
// If an error code was returned something failed requesting the role.
return ec2RoleCredRespBody{}, awserr.New(respCreds.Code, respCreds.Message, nil)
}
return respCreds, nil
}

77
vendor/github.com/aws/aws-sdk-go/aws/credentials/env_provider.go generated vendored Normal file
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package credentials
import (
"os"
"github.com/aws/aws-sdk-go/aws/awserr"
)
// EnvProviderName provides a name of Env provider
const EnvProviderName = "EnvProvider"
var (
// ErrAccessKeyIDNotFound is returned when the AWS Access Key ID can't be
// found in the process's environment.
//
// @readonly
ErrAccessKeyIDNotFound = awserr.New("EnvAccessKeyNotFound", "AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY not found in environment", nil)
// ErrSecretAccessKeyNotFound is returned when the AWS Secret Access Key
// can't be found in the process's environment.
//
// @readonly
ErrSecretAccessKeyNotFound = awserr.New("EnvSecretNotFound", "AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY not found in environment", nil)
)
// A EnvProvider retrieves credentials from the environment variables of the
// running process. Environment credentials never expire.
//
// Environment variables used:
//
// * Access Key ID: AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY
// * Secret Access Key: AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY
type EnvProvider struct {
retrieved bool
}
// NewEnvCredentials returns a pointer to a new Credentials object
// wrapping the environment variable provider.
func NewEnvCredentials() *Credentials {
return NewCredentials(&EnvProvider{})
}
// Retrieve retrieves the keys from the environment.
func (e *EnvProvider) Retrieve() (Value, error) {
e.retrieved = false
id := os.Getenv("AWS_ACCESS_KEY_ID")
if id == "" {
id = os.Getenv("AWS_ACCESS_KEY")
}
secret := os.Getenv("AWS_SECRET_ACCESS_KEY")
if secret == "" {
secret = os.Getenv("AWS_SECRET_KEY")
}
if id == "" {
return Value{ProviderName: EnvProviderName}, ErrAccessKeyIDNotFound
}
if secret == "" {
return Value{ProviderName: EnvProviderName}, ErrSecretAccessKeyNotFound
}
e.retrieved = true
return Value{
AccessKeyID: id,
SecretAccessKey: secret,
SessionToken: os.Getenv("AWS_SESSION_TOKEN"),
ProviderName: EnvProviderName,
}, nil
}
// IsExpired returns if the credentials have been retrieved.
func (e *EnvProvider) IsExpired() bool {
return !e.retrieved
}

12
vendor/github.com/aws/aws-sdk-go/aws/credentials/example.ini generated vendored Normal file
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[default]
aws_access_key_id = accessKey
aws_secret_access_key = secret
aws_session_token = token
[no_token]
aws_access_key_id = accessKey
aws_secret_access_key = secret
[with_colon]
aws_access_key_id: accessKey
aws_secret_access_key: secret

151
vendor/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go generated vendored Normal file
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package credentials
import (
"fmt"
"os"
"path/filepath"
"github.com/go-ini/ini"
"github.com/aws/aws-sdk-go/aws/awserr"
)
// SharedCredsProviderName provides a name of SharedCreds provider
const SharedCredsProviderName = "SharedCredentialsProvider"
var (
// ErrSharedCredentialsHomeNotFound is emitted when the user directory cannot be found.
//
// @readonly
ErrSharedCredentialsHomeNotFound = awserr.New("UserHomeNotFound", "user home directory not found.", nil)
)
// A SharedCredentialsProvider retrieves credentials from the current user's home
// directory, and keeps track if those credentials are expired.
//
// Profile ini file example: $HOME/.aws/credentials
type SharedCredentialsProvider struct {
// Path to the shared credentials file.
//
// If empty will look for "AWS_SHARED_CREDENTIALS_FILE" env variable. If the
// env value is empty will default to current user's home directory.
// Linux/OSX: "$HOME/.aws/credentials"
// Windows: "%USERPROFILE%\.aws\credentials"
Filename string
// AWS Profile to extract credentials from the shared credentials file. If empty
// will default to environment variable "AWS_PROFILE" or "default" if
// environment variable is also not set.
Profile string
// retrieved states if the credentials have been successfully retrieved.
retrieved bool
}
// NewSharedCredentials returns a pointer to a new Credentials object
// wrapping the Profile file provider.
func NewSharedCredentials(filename, profile string) *Credentials {
return NewCredentials(&SharedCredentialsProvider{
Filename: filename,
Profile: profile,
})
}
// Retrieve reads and extracts the shared credentials from the current
// users home directory.
func (p *SharedCredentialsProvider) Retrieve() (Value, error) {
p.retrieved = false
filename, err := p.filename()
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, err
}
creds, err := loadProfile(filename, p.profile())
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, err
}
p.retrieved = true
return creds, nil
}
// IsExpired returns if the shared credentials have expired.
func (p *SharedCredentialsProvider) IsExpired() bool {
return !p.retrieved
}
// loadProfiles loads from the file pointed to by shared credentials filename for profile.
// The credentials retrieved from the profile will be returned or error. Error will be
// returned if it fails to read from the file, or the data is invalid.
func loadProfile(filename, profile string) (Value, error) {
config, err := ini.Load(filename)
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to load shared credentials file", err)
}
iniProfile, err := config.GetSection(profile)
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to get profile", err)
}
id, err := iniProfile.GetKey("aws_access_key_id")
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsAccessKey",
fmt.Sprintf("shared credentials %s in %s did not contain aws_access_key_id", profile, filename),
err)
}
secret, err := iniProfile.GetKey("aws_secret_access_key")
if err != nil {
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsSecret",
fmt.Sprintf("shared credentials %s in %s did not contain aws_secret_access_key", profile, filename),
nil)
}
// Default to empty string if not found
token := iniProfile.Key("aws_session_token")
return Value{
AccessKeyID: id.String(),
SecretAccessKey: secret.String(),
SessionToken: token.String(),
ProviderName: SharedCredsProviderName,
}, nil
}
// filename returns the filename to use to read AWS shared credentials.
//
// Will return an error if the user's home directory path cannot be found.
func (p *SharedCredentialsProvider) filename() (string, error) {
if p.Filename == "" {
if p.Filename = os.Getenv("AWS_SHARED_CREDENTIALS_FILE"); p.Filename != "" {
return p.Filename, nil
}
homeDir := os.Getenv("HOME") // *nix
if homeDir == "" { // Windows
homeDir = os.Getenv("USERPROFILE")
}
if homeDir == "" {
return "", ErrSharedCredentialsHomeNotFound
}
p.Filename = filepath.Join(homeDir, ".aws", "credentials")
}
return p.Filename, nil
}
// profile returns the AWS shared credentials profile. If empty will read
// environment variable "AWS_PROFILE". If that is not set profile will
// return "default".
func (p *SharedCredentialsProvider) profile() string {
if p.Profile == "" {
p.Profile = os.Getenv("AWS_PROFILE")
}
if p.Profile == "" {
p.Profile = "default"
}
return p.Profile
}

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package credentials
import (
"github.com/aws/aws-sdk-go/aws/awserr"
)
// StaticProviderName provides a name of Static provider
const StaticProviderName = "StaticProvider"
var (
// ErrStaticCredentialsEmpty is emitted when static credentials are empty.
//
// @readonly
ErrStaticCredentialsEmpty = awserr.New("EmptyStaticCreds", "static credentials are empty", nil)
)
// A StaticProvider is a set of credentials which are set pragmatically,
// and will never expire.
type StaticProvider struct {
Value
}
// NewStaticCredentials returns a pointer to a new Credentials object
// wrapping a static credentials value provider.
func NewStaticCredentials(id, secret, token string) *Credentials {
return NewCredentials(&StaticProvider{Value: Value{
AccessKeyID: id,
SecretAccessKey: secret,
SessionToken: token,
}})
}
// Retrieve returns the credentials or error if the credentials are invalid.
func (s *StaticProvider) Retrieve() (Value, error) {
if s.AccessKeyID == "" || s.SecretAccessKey == "" {
return Value{ProviderName: StaticProviderName}, ErrStaticCredentialsEmpty
}
s.Value.ProviderName = StaticProviderName
return s.Value, nil
}
// IsExpired returns if the credentials are expired.
//
// For StaticProvider, the credentials never expired.
func (s *StaticProvider) IsExpired() bool {
return false
}

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// Package stscreds are credential Providers to retrieve STS AWS credentials.
//
// STS provides multiple ways to retrieve credentials which can be used when making
// future AWS service API operation calls.
package stscreds
import (
"fmt"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/service/sts"
)
// ProviderName provides a name of AssumeRole provider
const ProviderName = "AssumeRoleProvider"
// AssumeRoler represents the minimal subset of the STS client API used by this provider.
type AssumeRoler interface {
AssumeRole(input *sts.AssumeRoleInput) (*sts.AssumeRoleOutput, error)
}
// DefaultDuration is the default amount of time in minutes that the credentials
// will be valid for.
var DefaultDuration = time.Duration(15) * time.Minute
// AssumeRoleProvider retrieves temporary credentials from the STS service, and
// keeps track of their expiration time. This provider must be used explicitly,
// as it is not included in the credentials chain.
type AssumeRoleProvider struct {
credentials.Expiry
// STS client to make assume role request with.
Client AssumeRoler
// Role to be assumed.
RoleARN string
// Session name, if you wish to reuse the credentials elsewhere.
RoleSessionName string
// Expiry duration of the STS credentials. Defaults to 15 minutes if not set.
Duration time.Duration
// Optional ExternalID to pass along, defaults to nil if not set.
ExternalID *string
// ExpiryWindow will allow the credentials to trigger refreshing prior to
// the credentials actually expiring. This is beneficial so race conditions
// with expiring credentials do not cause request to fail unexpectedly
// due to ExpiredTokenException exceptions.
//
// So a ExpiryWindow of 10s would cause calls to IsExpired() to return true
// 10 seconds before the credentials are actually expired.
//
// If ExpiryWindow is 0 or less it will be ignored.
ExpiryWindow time.Duration
}
// NewCredentials returns a pointer to a new Credentials object wrapping the
// AssumeRoleProvider. The credentials will expire every 15 minutes and the
// role will be named after a nanosecond timestamp of this operation.
//
// Takes a Config provider to create the STS client. The ConfigProvider is
// satisfied by the session.Session type.
func NewCredentials(c client.ConfigProvider, roleARN string, options ...func(*AssumeRoleProvider)) *credentials.Credentials {
p := &AssumeRoleProvider{
Client: sts.New(c),
RoleARN: roleARN,
Duration: DefaultDuration,
}
for _, option := range options {
option(p)
}
return credentials.NewCredentials(p)
}
// NewCredentialsWithClient returns a pointer to a new Credentials object wrapping the
// AssumeRoleProvider. The credentials will expire every 15 minutes and the
// role will be named after a nanosecond timestamp of this operation.
//
// Takes an AssumeRoler which can be satisfiede by the STS client.
func NewCredentialsWithClient(svc AssumeRoler, roleARN string, options ...func(*AssumeRoleProvider)) *credentials.Credentials {
p := &AssumeRoleProvider{
Client: svc,
RoleARN: roleARN,
Duration: DefaultDuration,
}
for _, option := range options {
option(p)
}
return credentials.NewCredentials(p)
}
// Retrieve generates a new set of temporary credentials using STS.
func (p *AssumeRoleProvider) Retrieve() (credentials.Value, error) {
// Apply defaults where parameters are not set.
if p.RoleSessionName == "" {
// Try to work out a role name that will hopefully end up unique.
p.RoleSessionName = fmt.Sprintf("%d", time.Now().UTC().UnixNano())
}
if p.Duration == 0 {
// Expire as often as AWS permits.
p.Duration = DefaultDuration
}
roleOutput, err := p.Client.AssumeRole(&sts.AssumeRoleInput{
DurationSeconds: aws.Int64(int64(p.Duration / time.Second)),
RoleArn: aws.String(p.RoleARN),
RoleSessionName: aws.String(p.RoleSessionName),
ExternalId: p.ExternalID,
})
if err != nil {
return credentials.Value{ProviderName: ProviderName}, err
}
// We will proactively generate new credentials before they expire.
p.SetExpiration(*roleOutput.Credentials.Expiration, p.ExpiryWindow)
return credentials.Value{
AccessKeyID: *roleOutput.Credentials.AccessKeyId,
SecretAccessKey: *roleOutput.Credentials.SecretAccessKey,
SessionToken: *roleOutput.Credentials.SessionToken,
ProviderName: ProviderName,
}, nil
}

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// Package defaults is a collection of helpers to retrieve the SDK's default
// configuration and handlers.
//
// Generally this package shouldn't be used directly, but session.Session
// instead. This package is useful when you need to reset the defaults
// of a session or service client to the SDK defaults before setting
// additional parameters.
package defaults
import (
"net/http"
"os"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/corehandlers"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds"
"github.com/aws/aws-sdk-go/aws/ec2metadata"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/endpoints"
)
// A Defaults provides a collection of default values for SDK clients.
type Defaults struct {
Config *aws.Config
Handlers request.Handlers
}
// Get returns the SDK's default values with Config and handlers pre-configured.
func Get() Defaults {
cfg := Config()
handlers := Handlers()
cfg.Credentials = CredChain(cfg, handlers)
return Defaults{
Config: cfg,
Handlers: handlers,
}
}
// Config returns the default configuration without credentials.
// To retrieve a config with credentials also included use
// `defaults.Get().Config` instead.
//
// Generally you shouldn't need to use this method directly, but
// is available if you need to reset the configuration of an
// existing service client or session.
func Config() *aws.Config {
return aws.NewConfig().
WithCredentials(credentials.AnonymousCredentials).
WithRegion(os.Getenv("AWS_REGION")).
WithHTTPClient(http.DefaultClient).
WithMaxRetries(aws.UseServiceDefaultRetries).
WithLogger(aws.NewDefaultLogger()).
WithLogLevel(aws.LogOff).
WithSleepDelay(time.Sleep)
}
// Handlers returns the default request handlers.
//
// Generally you shouldn't need to use this method directly, but
// is available if you need to reset the request handlers of an
// existing service client or session.
func Handlers() request.Handlers {
var handlers request.Handlers
handlers.Validate.PushBackNamed(corehandlers.ValidateEndpointHandler)
handlers.Build.PushBackNamed(corehandlers.SDKVersionUserAgentHandler)
handlers.Sign.PushBackNamed(corehandlers.BuildContentLengthHandler)
handlers.Send.PushBackNamed(corehandlers.SendHandler)
handlers.AfterRetry.PushBackNamed(corehandlers.AfterRetryHandler)
handlers.ValidateResponse.PushBackNamed(corehandlers.ValidateResponseHandler)
return handlers
}
// CredChain returns the default credential chain.
//
// Generally you shouldn't need to use this method directly, but
// is available if you need to reset the credentials of an
// existing service client or session's Config.
func CredChain(cfg *aws.Config, handlers request.Handlers) *credentials.Credentials {
endpoint, signingRegion := endpoints.EndpointForRegion(ec2metadata.ServiceName, *cfg.Region, true)
return credentials.NewCredentials(&credentials.ChainProvider{
VerboseErrors: aws.BoolValue(cfg.CredentialsChainVerboseErrors),
Providers: []credentials.Provider{
&credentials.EnvProvider{},
&credentials.SharedCredentialsProvider{Filename: "", Profile: ""},
&ec2rolecreds.EC2RoleProvider{
Client: ec2metadata.NewClient(*cfg, handlers, endpoint, signingRegion),
ExpiryWindow: 5 * time.Minute,
},
}})
}

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package ec2metadata
import (
"path"
"github.com/aws/aws-sdk-go/aws/request"
)
// GetMetadata uses the path provided to request
func (c *EC2Metadata) GetMetadata(p string) (string, error) {
op := &request.Operation{
Name: "GetMetadata",
HTTPMethod: "GET",
HTTPPath: path.Join("/", "meta-data", p),
}
output := &metadataOutput{}
req := c.NewRequest(op, nil, output)
return output.Content, req.Send()
}
// Region returns the region the instance is running in.
func (c *EC2Metadata) Region() (string, error) {
resp, err := c.GetMetadata("placement/availability-zone")
if err != nil {
return "", err
}
// returns region without the suffix. Eg: us-west-2a becomes us-west-2
return resp[:len(resp)-1], nil
}
// Available returns if the application has access to the EC2 Metadata service.
// Can be used to determine if application is running within an EC2 Instance and
// the metadata service is available.
func (c *EC2Metadata) Available() bool {
if _, err := c.GetMetadata("instance-id"); err != nil {
return false
}
return true
}

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// Package ec2metadata provides the client for making API calls to the
// EC2 Metadata service.
package ec2metadata
import (
"io/ioutil"
"net/http"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/request"
)
// ServiceName is the name of the service.
const ServiceName = "ec2metadata"
// A EC2Metadata is an EC2 Metadata service Client.
type EC2Metadata struct {
*client.Client
}
// New creates a new instance of the EC2Metadata client with a session.
// This client is safe to use across multiple goroutines.
//
//
// Example:
// // Create a EC2Metadata client from just a session.
// svc := ec2metadata.New(mySession)
//
// // Create a EC2Metadata client with additional configuration
// svc := ec2metadata.New(mySession, aws.NewConfig().WithLogLevel(aws.LogDebugHTTPBody))
func New(p client.ConfigProvider, cfgs ...*aws.Config) *EC2Metadata {
c := p.ClientConfig(ServiceName, cfgs...)
return NewClient(*c.Config, c.Handlers, c.Endpoint, c.SigningRegion)
}
// NewClient returns a new EC2Metadata client. Should be used to create
// a client when not using a session. Generally using just New with a session
// is preferred.
//
// If an unmodified HTTP client is provided from the stdlib default, or no client
// the EC2RoleProvider's EC2Metadata HTTP client's timeout will be shortened.
// To disable this set Config.EC2MetadataDisableTimeoutOverride to false. Enabled by default.
func NewClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegion string, opts ...func(*client.Client)) *EC2Metadata {
if !aws.BoolValue(cfg.EC2MetadataDisableTimeoutOverride) && httpClientZero(cfg.HTTPClient) {
// If the http client is unmodified and this feature is not disabled
// set custom timeouts for EC2Metadata requests.
cfg.HTTPClient = &http.Client{
// use a shorter timeout than default because the metadata
// service is local if it is running, and to fail faster
// if not running on an ec2 instance.
Timeout: 5 * time.Second,
}
}
svc := &EC2Metadata{
Client: client.New(
cfg,
metadata.ClientInfo{
ServiceName: ServiceName,
Endpoint: endpoint,
APIVersion: "latest",
},
handlers,
),
}
svc.Handlers.Unmarshal.PushBack(unmarshalHandler)
svc.Handlers.UnmarshalError.PushBack(unmarshalError)
svc.Handlers.Validate.Clear()
svc.Handlers.Validate.PushBack(validateEndpointHandler)
// Add additional options to the service config
for _, option := range opts {
option(svc.Client)
}
return svc
}
func httpClientZero(c *http.Client) bool {
return c == nil || (c.Transport == nil && c.CheckRedirect == nil && c.Jar == nil && c.Timeout == 0)
}
type metadataOutput struct {
Content string
}
func unmarshalHandler(r *request.Request) {
defer r.HTTPResponse.Body.Close()
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata respose", err)
}
data := r.Data.(*metadataOutput)
data.Content = string(b)
}
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
_, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata error respose", err)
}
// TODO extract the error...
}
func validateEndpointHandler(r *request.Request) {
if r.ClientInfo.Endpoint == "" {
r.Error = aws.ErrMissingEndpoint
}
}

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package aws
import "github.com/aws/aws-sdk-go/aws/awserr"
var (
// ErrMissingRegion is an error that is returned if region configuration is
// not found.
//
// @readonly
ErrMissingRegion = awserr.New("MissingRegion", "could not find region configuration", nil)
// ErrMissingEndpoint is an error that is returned if an endpoint cannot be
// resolved for a service.
//
// @readonly
ErrMissingEndpoint = awserr.New("MissingEndpoint", "'Endpoint' configuration is required for this service", nil)
)

98
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package aws
import (
"log"
"os"
)
// A LogLevelType defines the level logging should be performed at. Used to instruct
// the SDK which statements should be logged.
type LogLevelType uint
// LogLevel returns the pointer to a LogLevel. Should be used to workaround
// not being able to take the address of a non-composite literal.
func LogLevel(l LogLevelType) *LogLevelType {
return &l
}
// Value returns the LogLevel value or the default value LogOff if the LogLevel
// is nil. Safe to use on nil value LogLevelTypes.
func (l *LogLevelType) Value() LogLevelType {
if l != nil {
return *l
}
return LogOff
}
// Matches returns true if the v LogLevel is enabled by this LogLevel. Should be
// used with logging sub levels. Is safe to use on nil value LogLevelTypes. If
// LogLevel is nill, will default to LogOff comparison.
func (l *LogLevelType) Matches(v LogLevelType) bool {
c := l.Value()
return c&v == v
}
// AtLeast returns true if this LogLevel is at least high enough to satisfies v.
// Is safe to use on nil value LogLevelTypes. If LogLevel is nill, will default
// to LogOff comparison.
func (l *LogLevelType) AtLeast(v LogLevelType) bool {
c := l.Value()
return c >= v
}
const (
// LogOff states that no logging should be performed by the SDK. This is the
// default state of the SDK, and should be use to disable all logging.
LogOff LogLevelType = iota * 0x1000
// LogDebug state that debug output should be logged by the SDK. This should
// be used to inspect request made and responses received.
LogDebug
)
// Debug Logging Sub Levels
const (
// LogDebugWithSigning states that the SDK should log request signing and
// presigning events. This should be used to log the signing details of
// requests for debugging. Will also enable LogDebug.
LogDebugWithSigning LogLevelType = LogDebug | (1 << iota)
// LogDebugWithHTTPBody states the SDK should log HTTP request and response
// HTTP bodys in addition to the headers and path. This should be used to
// see the body content of requests and responses made while using the SDK
// Will also enable LogDebug.
LogDebugWithHTTPBody
// LogDebugWithRequestRetries states the SDK should log when service requests will
// be retried. This should be used to log when you want to log when service
// requests are being retried. Will also enable LogDebug.
LogDebugWithRequestRetries
// LogDebugWithRequestErrors states the SDK should log when service requests fail
// to build, send, validate, or unmarshal.
LogDebugWithRequestErrors
)
// A Logger is a minimalistic interface for the SDK to log messages to. Should
// be used to provide custom logging writers for the SDK to use.
type Logger interface {
Log(...interface{})
}
// NewDefaultLogger returns a Logger which will write log messages to stdout, and
// use same formatting runes as the stdlib log.Logger
func NewDefaultLogger() Logger {
return &defaultLogger{
logger: log.New(os.Stdout, "", log.LstdFlags),
}
}
// A defaultLogger provides a minimalistic logger satisfying the Logger interface.
type defaultLogger struct {
logger *log.Logger
}
// Log logs the parameters to the stdlib logger. See log.Println.
func (l defaultLogger) Log(args ...interface{}) {
l.logger.Println(args...)
}

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package request
import (
"fmt"
"strings"
)
// A Handlers provides a collection of request handlers for various
// stages of handling requests.
type Handlers struct {
Validate HandlerList
Build HandlerList
Sign HandlerList
Send HandlerList
ValidateResponse HandlerList
Unmarshal HandlerList
UnmarshalMeta HandlerList
UnmarshalError HandlerList
Retry HandlerList
AfterRetry HandlerList
}
// Copy returns of this handler's lists.
func (h *Handlers) Copy() Handlers {
return Handlers{
Validate: h.Validate.copy(),
Build: h.Build.copy(),
Sign: h.Sign.copy(),
Send: h.Send.copy(),
ValidateResponse: h.ValidateResponse.copy(),
Unmarshal: h.Unmarshal.copy(),
UnmarshalError: h.UnmarshalError.copy(),
UnmarshalMeta: h.UnmarshalMeta.copy(),
Retry: h.Retry.copy(),
AfterRetry: h.AfterRetry.copy(),
}
}
// Clear removes callback functions for all handlers
func (h *Handlers) Clear() {
h.Validate.Clear()
h.Build.Clear()
h.Send.Clear()
h.Sign.Clear()
h.Unmarshal.Clear()
h.UnmarshalMeta.Clear()
h.UnmarshalError.Clear()
h.ValidateResponse.Clear()
h.Retry.Clear()
h.AfterRetry.Clear()
}
// A HandlerList manages zero or more handlers in a list.
type HandlerList struct {
list []NamedHandler
}
// A NamedHandler is a struct that contains a name and function callback.
type NamedHandler struct {
Name string
Fn func(*Request)
}
// copy creates a copy of the handler list.
func (l *HandlerList) copy() HandlerList {
var n HandlerList
n.list = append([]NamedHandler{}, l.list...)
return n
}
// Clear clears the handler list.
func (l *HandlerList) Clear() {
l.list = []NamedHandler{}
}
// Len returns the number of handlers in the list.
func (l *HandlerList) Len() int {
return len(l.list)
}
// PushBack pushes handler f to the back of the handler list.
func (l *HandlerList) PushBack(f func(*Request)) {
l.list = append(l.list, NamedHandler{"__anonymous", f})
}
// PushFront pushes handler f to the front of the handler list.
func (l *HandlerList) PushFront(f func(*Request)) {
l.list = append([]NamedHandler{{"__anonymous", f}}, l.list...)
}
// PushBackNamed pushes named handler f to the back of the handler list.
func (l *HandlerList) PushBackNamed(n NamedHandler) {
l.list = append(l.list, n)
}
// PushFrontNamed pushes named handler f to the front of the handler list.
func (l *HandlerList) PushFrontNamed(n NamedHandler) {
l.list = append([]NamedHandler{n}, l.list...)
}
// Remove removes a NamedHandler n
func (l *HandlerList) Remove(n NamedHandler) {
newlist := []NamedHandler{}
for _, m := range l.list {
if m.Name != n.Name {
newlist = append(newlist, m)
}
}
l.list = newlist
}
// Run executes all handlers in the list with a given request object.
func (l *HandlerList) Run(r *Request) {
for _, f := range l.list {
f.Fn(r)
}
}
// MakeAddToUserAgentHandler will add the name/version pair to the User-Agent request
// header. If the extra parameters are provided they will be added as metadata to the
// name/version pair resulting in the following format.
// "name/version (extra0; extra1; ...)"
// The user agent part will be concatenated with this current request's user agent string.
func MakeAddToUserAgentHandler(name, version string, extra ...string) func(*Request) {
ua := fmt.Sprintf("%s/%s", name, version)
if len(extra) > 0 {
ua += fmt.Sprintf(" (%s)", strings.Join(extra, "; "))
}
return func(r *Request) {
AddToUserAgent(r, ua)
}
}
// MakeAddToUserAgentFreeFormHandler adds the input to the User-Agent request header.
// The input string will be concatenated with the current request's user agent string.
func MakeAddToUserAgentFreeFormHandler(s string) func(*Request) {
return func(r *Request) {
AddToUserAgent(r, s)
}
}

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package request
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"reflect"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client/metadata"
)
// A Request is the service request to be made.
type Request struct {
Config aws.Config
ClientInfo metadata.ClientInfo
Handlers Handlers
Retryer
Time time.Time
ExpireTime time.Duration
Operation *Operation
HTTPRequest *http.Request
HTTPResponse *http.Response
Body io.ReadSeeker
BodyStart int64 // offset from beginning of Body that the request body starts
Params interface{}
Error error
Data interface{}
RequestID string
RetryCount int
Retryable *bool
RetryDelay time.Duration
NotHoist bool
SignedHeaderVals http.Header
built bool
}
// An Operation is the service API operation to be made.
type Operation struct {
Name string
HTTPMethod string
HTTPPath string
*Paginator
}
// Paginator keeps track of pagination configuration for an API operation.
type Paginator struct {
InputTokens []string
OutputTokens []string
LimitToken string
TruncationToken string
}
// New returns a new Request pointer for the service API
// operation and parameters.
//
// Params is any value of input parameters to be the request payload.
// Data is pointer value to an object which the request's response
// payload will be deserialized to.
func New(cfg aws.Config, clientInfo metadata.ClientInfo, handlers Handlers,
retryer Retryer, operation *Operation, params interface{}, data interface{}) *Request {
method := operation.HTTPMethod
if method == "" {
method = "POST"
}
p := operation.HTTPPath
if p == "" {
p = "/"
}
httpReq, _ := http.NewRequest(method, "", nil)
httpReq.URL, _ = url.Parse(clientInfo.Endpoint + p)
r := &Request{
Config: cfg,
ClientInfo: clientInfo,
Handlers: handlers.Copy(),
Retryer: retryer,
Time: time.Now(),
ExpireTime: 0,
Operation: operation,
HTTPRequest: httpReq,
Body: nil,
Params: params,
Error: nil,
Data: data,
}
r.SetBufferBody([]byte{})
return r
}
// WillRetry returns if the request's can be retried.
func (r *Request) WillRetry() bool {
return r.Error != nil && aws.BoolValue(r.Retryable) && r.RetryCount < r.MaxRetries()
}
// ParamsFilled returns if the request's parameters have been populated
// and the parameters are valid. False is returned if no parameters are
// provided or invalid.
func (r *Request) ParamsFilled() bool {
return r.Params != nil && reflect.ValueOf(r.Params).Elem().IsValid()
}
// DataFilled returns true if the request's data for response deserialization
// target has been set and is a valid. False is returned if data is not
// set, or is invalid.
func (r *Request) DataFilled() bool {
return r.Data != nil && reflect.ValueOf(r.Data).Elem().IsValid()
}
// SetBufferBody will set the request's body bytes that will be sent to
// the service API.
func (r *Request) SetBufferBody(buf []byte) {
r.SetReaderBody(bytes.NewReader(buf))
}
// SetStringBody sets the body of the request to be backed by a string.
func (r *Request) SetStringBody(s string) {
r.SetReaderBody(strings.NewReader(s))
}
// SetReaderBody will set the request's body reader.
func (r *Request) SetReaderBody(reader io.ReadSeeker) {
r.HTTPRequest.Body = ioutil.NopCloser(reader)
r.Body = reader
}
// Presign returns the request's signed URL. Error will be returned
// if the signing fails.
func (r *Request) Presign(expireTime time.Duration) (string, error) {
r.ExpireTime = expireTime
r.NotHoist = false
r.Sign()
if r.Error != nil {
return "", r.Error
}
return r.HTTPRequest.URL.String(), nil
}
// PresignRequest behaves just like presign, but hoists all headers and signs them.
// Also returns the signed hash back to the user
func (r *Request) PresignRequest(expireTime time.Duration) (string, http.Header, error) {
r.ExpireTime = expireTime
r.NotHoist = true
r.Sign()
if r.Error != nil {
return "", nil, r.Error
}
return r.HTTPRequest.URL.String(), r.SignedHeaderVals, nil
}
func debugLogReqError(r *Request, stage string, retrying bool, err error) {
if !r.Config.LogLevel.Matches(aws.LogDebugWithRequestErrors) {
return
}
retryStr := "not retrying"
if retrying {
retryStr = "will retry"
}
r.Config.Logger.Log(fmt.Sprintf("DEBUG: %s %s/%s failed, %s, error %v",
stage, r.ClientInfo.ServiceName, r.Operation.Name, retryStr, err))
}
// Build will build the request's object so it can be signed and sent
// to the service. Build will also validate all the request's parameters.
// Anny additional build Handlers set on this request will be run
// in the order they were set.
//
// The request will only be built once. Multiple calls to build will have
// no effect.
//
// If any Validate or Build errors occur the build will stop and the error
// which occurred will be returned.
func (r *Request) Build() error {
if !r.built {
r.Error = nil
r.Handlers.Validate.Run(r)
if r.Error != nil {
debugLogReqError(r, "Validate Request", false, r.Error)
return r.Error
}
r.Handlers.Build.Run(r)
r.built = true
}
return r.Error
}
// Sign will sign the request retuning error if errors are encountered.
//
// Send will build the request prior to signing. All Sign Handlers will
// be executed in the order they were set.
func (r *Request) Sign() error {
r.Build()
if r.Error != nil {
debugLogReqError(r, "Build Request", false, r.Error)
return r.Error
}
r.Handlers.Sign.Run(r)
return r.Error
}
// Send will send the request returning error if errors are encountered.
//
// Send will sign the request prior to sending. All Send Handlers will
// be executed in the order they were set.
func (r *Request) Send() error {
for {
r.Sign()
if r.Error != nil {
return r.Error
}
if aws.BoolValue(r.Retryable) {
if r.Config.LogLevel.Matches(aws.LogDebugWithRequestRetries) {
r.Config.Logger.Log(fmt.Sprintf("DEBUG: Retrying Request %s/%s, attempt %d",
r.ClientInfo.ServiceName, r.Operation.Name, r.RetryCount))
}
// Re-seek the body back to the original point in for a retry so that
// send will send the body's contents again in the upcoming request.
r.Body.Seek(r.BodyStart, 0)
r.HTTPRequest.Body = ioutil.NopCloser(r.Body)
}
r.Retryable = nil
r.Handlers.Send.Run(r)
if r.Error != nil {
err := r.Error
r.Handlers.Retry.Run(r)
r.Handlers.AfterRetry.Run(r)
if r.Error != nil {
debugLogReqError(r, "Send Request", false, r.Error)
return r.Error
}
debugLogReqError(r, "Send Request", true, err)
continue
}
r.Handlers.UnmarshalMeta.Run(r)
r.Handlers.ValidateResponse.Run(r)
if r.Error != nil {
err := r.Error
r.Handlers.UnmarshalError.Run(r)
r.Handlers.Retry.Run(r)
r.Handlers.AfterRetry.Run(r)
if r.Error != nil {
debugLogReqError(r, "Validate Response", false, r.Error)
return r.Error
}
debugLogReqError(r, "Validate Response", true, err)
continue
}
r.Handlers.Unmarshal.Run(r)
if r.Error != nil {
err := r.Error
r.Handlers.Retry.Run(r)
r.Handlers.AfterRetry.Run(r)
if r.Error != nil {
debugLogReqError(r, "Unmarshal Response", false, r.Error)
return r.Error
}
debugLogReqError(r, "Unmarshal Response", true, err)
continue
}
break
}
return nil
}
// AddToUserAgent adds the string to the end of the request's current user agent.
func AddToUserAgent(r *Request, s string) {
curUA := r.HTTPRequest.Header.Get("User-Agent")
if len(curUA) > 0 {
s = curUA + " " + s
}
r.HTTPRequest.Header.Set("User-Agent", s)
}

104
vendor/github.com/aws/aws-sdk-go/aws/request/request_pagination.go generated vendored Normal file
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package request
import (
"reflect"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awsutil"
)
//type Paginater interface {
// HasNextPage() bool
// NextPage() *Request
// EachPage(fn func(data interface{}, isLastPage bool) (shouldContinue bool)) error
//}
// HasNextPage returns true if this request has more pages of data available.
func (r *Request) HasNextPage() bool {
return len(r.nextPageTokens()) > 0
}
// nextPageTokens returns the tokens to use when asking for the next page of
// data.
func (r *Request) nextPageTokens() []interface{} {
if r.Operation.Paginator == nil {
return nil
}
if r.Operation.TruncationToken != "" {
tr, _ := awsutil.ValuesAtPath(r.Data, r.Operation.TruncationToken)
if len(tr) == 0 {
return nil
}
switch v := tr[0].(type) {
case *bool:
if !aws.BoolValue(v) {
return nil
}
case bool:
if v == false {
return nil
}
}
}
tokens := []interface{}{}
tokenAdded := false
for _, outToken := range r.Operation.OutputTokens {
v, _ := awsutil.ValuesAtPath(r.Data, outToken)
if len(v) > 0 {
tokens = append(tokens, v[0])
tokenAdded = true
} else {
tokens = append(tokens, nil)
}
}
if !tokenAdded {
return nil
}
return tokens
}
// NextPage returns a new Request that can be executed to return the next
// page of result data. Call .Send() on this request to execute it.
func (r *Request) NextPage() *Request {
tokens := r.nextPageTokens()
if len(tokens) == 0 {
return nil
}
data := reflect.New(reflect.TypeOf(r.Data).Elem()).Interface()
nr := New(r.Config, r.ClientInfo, r.Handlers, r.Retryer, r.Operation, awsutil.CopyOf(r.Params), data)
for i, intok := range nr.Operation.InputTokens {
awsutil.SetValueAtPath(nr.Params, intok, tokens[i])
}
return nr
}
// EachPage iterates over each page of a paginated request object. The fn
// parameter should be a function with the following sample signature:
//
// func(page *T, lastPage bool) bool {
// return true // return false to stop iterating
// }
//
// Where "T" is the structure type matching the output structure of the given
// operation. For example, a request object generated by
// DynamoDB.ListTablesRequest() would expect to see dynamodb.ListTablesOutput
// as the structure "T". The lastPage value represents whether the page is
// the last page of data or not. The return value of this function should
// return true to keep iterating or false to stop.
func (r *Request) EachPage(fn func(data interface{}, isLastPage bool) (shouldContinue bool)) error {
for page := r; page != nil; page = page.NextPage() {
if err := page.Send(); err != nil {
return err
}
if getNextPage := fn(page.Data, !page.HasNextPage()); !getNextPage {
return page.Error
}
}
return nil
}

82
vendor/github.com/aws/aws-sdk-go/aws/request/retryer.go generated vendored Normal file
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package request
import (
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
)
// Retryer is an interface to control retry logic for a given service.
// The default implementation used by most services is the service.DefaultRetryer
// structure, which contains basic retry logic using exponential backoff.
type Retryer interface {
RetryRules(*Request) time.Duration
ShouldRetry(*Request) bool
MaxRetries() int
}
// WithRetryer sets a config Retryer value to the given Config returning it
// for chaining.
func WithRetryer(cfg *aws.Config, retryer Retryer) *aws.Config {
cfg.Retryer = retryer
return cfg
}
// retryableCodes is a collection of service response codes which are retry-able
// without any further action.
var retryableCodes = map[string]struct{}{
"RequestError": {},
"RequestTimeout": {},
"ProvisionedThroughputExceededException": {},
"Throttling": {},
"ThrottlingException": {},
"RequestLimitExceeded": {},
"RequestThrottled": {},
"LimitExceededException": {}, // Deleting 10+ DynamoDb tables at once
"TooManyRequestsException": {}, // Lambda functions
}
// credsExpiredCodes is a collection of error codes which signify the credentials
// need to be refreshed. Expired tokens require refreshing of credentials, and
// resigning before the request can be retried.
var credsExpiredCodes = map[string]struct{}{
"ExpiredToken": {},
"ExpiredTokenException": {},
"RequestExpired": {}, // EC2 Only
}
func isCodeRetryable(code string) bool {
if _, ok := retryableCodes[code]; ok {
return true
}
return isCodeExpiredCreds(code)
}
func isCodeExpiredCreds(code string) bool {
_, ok := credsExpiredCodes[code]
return ok
}
// IsErrorRetryable returns whether the error is retryable, based on its Code.
// Returns false if the request has no Error set.
func (r *Request) IsErrorRetryable() bool {
if r.Error != nil {
if err, ok := r.Error.(awserr.Error); ok {
return isCodeRetryable(err.Code())
}
}
return false
}
// IsErrorExpired returns whether the error code is a credential expiry error.
// Returns false if the request has no Error set.
func (r *Request) IsErrorExpired() bool {
if r.Error != nil {
if err, ok := r.Error.(awserr.Error); ok {
return isCodeExpiredCreds(err.Code())
}
}
return false
}

120
vendor/github.com/aws/aws-sdk-go/aws/session/session.go generated vendored Normal file
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// Package session provides a way to create service clients with shared configuration
// and handlers.
//
// Generally this package should be used instead of the `defaults` package.
//
// A session should be used to share configurations and request handlers between multiple
// service clients. When service clients need specific configuration aws.Config can be
// used to provide additional configuration directly to the service client.
package session
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/corehandlers"
"github.com/aws/aws-sdk-go/aws/defaults"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/endpoints"
)
// A Session provides a central location to create service clients from and
// store configurations and request handlers for those services.
//
// Sessions are safe to create service clients concurrently, but it is not safe
// to mutate the session concurrently.
type Session struct {
Config *aws.Config
Handlers request.Handlers
}
// New creates a new instance of the handlers merging in the provided Configs
// on top of the SDK's default configurations. Once the session is created it
// can be mutated to modify Configs or Handlers. The session is safe to be read
// concurrently, but it should not be written to concurrently.
//
// Example:
// // Create a session with the default config and request handlers.
// sess := session.New()
//
// // Create a session with a custom region
// sess := session.New(&aws.Config{Region: aws.String("us-east-1")})
//
// // Create a session, and add additional handlers for all service
// // clients created with the session to inherit. Adds logging handler.
// sess := session.New()
// sess.Handlers.Send.PushFront(func(r *request.Request) {
// // Log every request made and its payload
// logger.Println("Request: %s/%s, Payload: %s", r.ClientInfo.ServiceName, r.Operation, r.Params)
// })
//
// // Create a S3 client instance from a session
// sess := session.New()
// svc := s3.New(sess)
func New(cfgs ...*aws.Config) *Session {
cfg := defaults.Config()
handlers := defaults.Handlers()
// Apply the passed in configs so the configuration can be applied to the
// default credential chain
cfg.MergeIn(cfgs...)
cfg.Credentials = defaults.CredChain(cfg, handlers)
// Reapply any passed in configs to override credentials if set
cfg.MergeIn(cfgs...)
s := &Session{
Config: cfg,
Handlers: handlers,
}
initHandlers(s)
return s
}
func initHandlers(s *Session) {
// Add the Validate parameter handler if it is not disabled.
s.Handlers.Validate.Remove(corehandlers.ValidateParametersHandler)
if !aws.BoolValue(s.Config.DisableParamValidation) {
s.Handlers.Validate.PushBackNamed(corehandlers.ValidateParametersHandler)
}
}
// Copy creates and returns a copy of the current session, coping the config
// and handlers. If any additional configs are provided they will be merged
// on top of the session's copied config.
//
// Example:
// // Create a copy of the current session, configured for the us-west-2 region.
// sess.Copy(&aws.Config{Region: aws.String("us-west-2"})
func (s *Session) Copy(cfgs ...*aws.Config) *Session {
newSession := &Session{
Config: s.Config.Copy(cfgs...),
Handlers: s.Handlers.Copy(),
}
initHandlers(newSession)
return newSession
}
// ClientConfig satisfies the client.ConfigProvider interface and is used to
// configure the service client instances. Passing the Session to the service
// client's constructor (New) will use this method to configure the client.
//
// Example:
// sess := session.New()
// s3.New(sess)
func (s *Session) ClientConfig(serviceName string, cfgs ...*aws.Config) client.Config {
s = s.Copy(cfgs...)
endpoint, signingRegion := endpoints.NormalizeEndpoint(
aws.StringValue(s.Config.Endpoint), serviceName,
aws.StringValue(s.Config.Region), aws.BoolValue(s.Config.DisableSSL))
return client.Config{
Config: s.Config,
Handlers: s.Handlers,
Endpoint: endpoint,
SigningRegion: signingRegion,
}
}

88
vendor/github.com/aws/aws-sdk-go/aws/types.go generated vendored Normal file
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package aws
import (
"io"
"sync"
)
// ReadSeekCloser wraps a io.Reader returning a ReaderSeekerCloser
func ReadSeekCloser(r io.Reader) ReaderSeekerCloser {
return ReaderSeekerCloser{r}
}
// ReaderSeekerCloser represents a reader that can also delegate io.Seeker and
// io.Closer interfaces to the underlying object if they are available.
type ReaderSeekerCloser struct {
r io.Reader
}
// Read reads from the reader up to size of p. The number of bytes read, and
// error if it occurred will be returned.
//
// If the reader is not an io.Reader zero bytes read, and nil error will be returned.
//
// Performs the same functionality as io.Reader Read
func (r ReaderSeekerCloser) Read(p []byte) (int, error) {
switch t := r.r.(type) {
case io.Reader:
return t.Read(p)
}
return 0, nil
}
// Seek sets the offset for the next Read to offset, interpreted according to
// whence: 0 means relative to the origin of the file, 1 means relative to the
// current offset, and 2 means relative to the end. Seek returns the new offset
// and an error, if any.
//
// If the ReaderSeekerCloser is not an io.Seeker nothing will be done.
func (r ReaderSeekerCloser) Seek(offset int64, whence int) (int64, error) {
switch t := r.r.(type) {
case io.Seeker:
return t.Seek(offset, whence)
}
return int64(0), nil
}
// Close closes the ReaderSeekerCloser.
//
// If the ReaderSeekerCloser is not an io.Closer nothing will be done.
func (r ReaderSeekerCloser) Close() error {
switch t := r.r.(type) {
case io.Closer:
return t.Close()
}
return nil
}
// A WriteAtBuffer provides a in memory buffer supporting the io.WriterAt interface
// Can be used with the s3manager.Downloader to download content to a buffer
// in memory. Safe to use concurrently.
type WriteAtBuffer struct {
buf []byte
m sync.Mutex
}
// WriteAt writes a slice of bytes to a buffer starting at the position provided
// The number of bytes written will be returned, or error. Can overwrite previous
// written slices if the write ats overlap.
func (b *WriteAtBuffer) WriteAt(p []byte, pos int64) (n int, err error) {
b.m.Lock()
defer b.m.Unlock()
expLen := pos + int64(len(p))
if int64(len(b.buf)) < expLen {
newBuf := make([]byte, expLen)
copy(newBuf, b.buf)
b.buf = newBuf
}
copy(b.buf[pos:], p)
return len(p), nil
}
// Bytes returns a slice of bytes written to the buffer.
func (b *WriteAtBuffer) Bytes() []byte {
b.m.Lock()
defer b.m.Unlock()
return b.buf[:len(b.buf):len(b.buf)]
}

8
vendor/github.com/aws/aws-sdk-go/aws/version.go generated vendored Normal file
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// Package aws provides core functionality for making requests to AWS services.
package aws
// SDKName is the name of this AWS SDK
const SDKName = "aws-sdk-go"
// SDKVersion is the version of this SDK
const SDKVersion = "1.1.0"

65
vendor/github.com/aws/aws-sdk-go/private/endpoints/endpoints.go generated vendored Normal file
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// Package endpoints validates regional endpoints for services.
package endpoints
//go:generate go run ../model/cli/gen-endpoints/main.go endpoints.json endpoints_map.go
//go:generate gofmt -s -w endpoints_map.go
import (
"fmt"
"regexp"
"strings"
)
// NormalizeEndpoint takes and endpoint and service API information to return a
// normalized endpoint and signing region. If the endpoint is not an empty string
// the service name and region will be used to look up the service's API endpoint.
// If the endpoint is provided the scheme will be added if it is not present.
func NormalizeEndpoint(endpoint, serviceName, region string, disableSSL bool) (normEndpoint, signingRegion string) {
if endpoint == "" {
return EndpointForRegion(serviceName, region, disableSSL)
}
return AddScheme(endpoint, disableSSL), ""
}
// EndpointForRegion returns an endpoint and its signing region for a service and region.
// if the service and region pair are not found endpoint and signingRegion will be empty.
func EndpointForRegion(svcName, region string, disableSSL bool) (endpoint, signingRegion string) {
derivedKeys := []string{
region + "/" + svcName,
region + "/*",
"*/" + svcName,
"*/*",
}
for _, key := range derivedKeys {
if val, ok := endpointsMap.Endpoints[key]; ok {
ep := val.Endpoint
ep = strings.Replace(ep, "{region}", region, -1)
ep = strings.Replace(ep, "{service}", svcName, -1)
endpoint = ep
signingRegion = val.SigningRegion
break
}
}
return AddScheme(endpoint, disableSSL), signingRegion
}
// Regular expression to determine if the endpoint string is prefixed with a scheme.
var schemeRE = regexp.MustCompile("^([^:]+)://")
// AddScheme adds the HTTP or HTTPS schemes to a endpoint URL if there is no
// scheme. If disableSSL is true HTTP will be added instead of the default HTTPS.
func AddScheme(endpoint string, disableSSL bool) string {
if endpoint != "" && !schemeRE.MatchString(endpoint) {
scheme := "https"
if disableSSL {
scheme = "http"
}
endpoint = fmt.Sprintf("%s://%s", scheme, endpoint)
}
return endpoint
}

92
vendor/github.com/aws/aws-sdk-go/private/endpoints/endpoints.json generated vendored Normal file
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{
"version": 2,
"endpoints": {
"*/*": {
"endpoint": "{service}.{region}.amazonaws.com"
},
"cn-north-1/*": {
"endpoint": "{service}.{region}.amazonaws.com.cn",
"signatureVersion": "v4"
},
"us-gov-west-1/iam": {
"endpoint": "iam.us-gov.amazonaws.com"
},
"us-gov-west-1/sts": {
"endpoint": "sts.us-gov-west-1.amazonaws.com"
},
"us-gov-west-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"*/cloudfront": {
"endpoint": "cloudfront.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/cloudsearchdomain": {
"endpoint": "",
"signingRegion": "us-east-1"
},
"*/data.iot": {
"endpoint": "",
"signingRegion": "us-east-1"
},
"*/ec2metadata": {
"endpoint": "http://169.254.169.254/latest",
"signingRegion": "us-east-1"
},
"*/iam": {
"endpoint": "iam.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/importexport": {
"endpoint": "importexport.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/route53": {
"endpoint": "route53.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/sts": {
"endpoint": "sts.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/waf": {
"endpoint": "waf.amazonaws.com",
"signingRegion": "us-east-1"
},
"us-east-1/sdb": {
"endpoint": "sdb.amazonaws.com",
"signingRegion": "us-east-1"
},
"us-east-1/s3": {
"endpoint": "s3.amazonaws.com"
},
"us-west-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"us-west-2/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"eu-west-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"ap-southeast-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"ap-southeast-2/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"ap-northeast-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"ap-northeast-2/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"sa-east-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"eu-central-1/s3": {
"endpoint": "{service}.{region}.amazonaws.com",
"signatureVersion": "v4"
}
}
}

104
vendor/github.com/aws/aws-sdk-go/private/endpoints/endpoints_map.go generated vendored Normal file
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package endpoints
// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
type endpointStruct struct {
Version int
Endpoints map[string]endpointEntry
}
type endpointEntry struct {
Endpoint string
SigningRegion string
}
var endpointsMap = endpointStruct{
Version: 2,
Endpoints: map[string]endpointEntry{
"*/*": {
Endpoint: "{service}.{region}.amazonaws.com",
},
"*/cloudfront": {
Endpoint: "cloudfront.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/cloudsearchdomain": {
Endpoint: "",
SigningRegion: "us-east-1",
},
"*/data.iot": {
Endpoint: "",
SigningRegion: "us-east-1",
},
"*/ec2metadata": {
Endpoint: "http://169.254.169.254/latest",
SigningRegion: "us-east-1",
},
"*/iam": {
Endpoint: "iam.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/importexport": {
Endpoint: "importexport.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/route53": {
Endpoint: "route53.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/sts": {
Endpoint: "sts.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/waf": {
Endpoint: "waf.amazonaws.com",
SigningRegion: "us-east-1",
},
"ap-northeast-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"ap-northeast-2/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"ap-southeast-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"ap-southeast-2/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"cn-north-1/*": {
Endpoint: "{service}.{region}.amazonaws.com.cn",
},
"eu-central-1/s3": {
Endpoint: "{service}.{region}.amazonaws.com",
},
"eu-west-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"sa-east-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"us-east-1/s3": {
Endpoint: "s3.amazonaws.com",
},
"us-east-1/sdb": {
Endpoint: "sdb.amazonaws.com",
SigningRegion: "us-east-1",
},
"us-gov-west-1/iam": {
Endpoint: "iam.us-gov.amazonaws.com",
},
"us-gov-west-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"us-gov-west-1/sts": {
Endpoint: "sts.us-gov-west-1.amazonaws.com",
},
"us-west-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"us-west-2/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
},
}

35
vendor/github.com/aws/aws-sdk-go/private/protocol/ec2query/build.go generated vendored Normal file
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// Package ec2query provides serialisation of AWS EC2 requests and responses.
package ec2query
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/input/ec2.json build_test.go
import (
"net/url"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/query/queryutil"
)
// BuildHandler is a named request handler for building ec2query protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.ec2query.Build", Fn: Build}
// Build builds a request for the EC2 protocol.
func Build(r *request.Request) {
body := url.Values{
"Action": {r.Operation.Name},
"Version": {r.ClientInfo.APIVersion},
}
if err := queryutil.Parse(body, r.Params, true); err != nil {
r.Error = awserr.New("SerializationError", "failed encoding EC2 Query request", err)
}
if r.ExpireTime == 0 {
r.HTTPRequest.Method = "POST"
r.HTTPRequest.Header.Set("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
r.SetBufferBody([]byte(body.Encode()))
} else { // This is a pre-signed request
r.HTTPRequest.Method = "GET"
r.HTTPRequest.URL.RawQuery = body.Encode()
}
}

63
vendor/github.com/aws/aws-sdk-go/private/protocol/ec2query/unmarshal.go generated vendored Normal file
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@ -0,0 +1,63 @@
package ec2query
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/output/ec2.json unmarshal_test.go
import (
"encoding/xml"
"io"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil"
)
// UnmarshalHandler is a named request handler for unmarshaling ec2query protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.ec2query.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling ec2query protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.ec2query.UnmarshalMeta", Fn: UnmarshalMeta}
// UnmarshalErrorHandler is a named request handler for unmarshaling ec2query protocol request errors
var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.ec2query.UnmarshalError", Fn: UnmarshalError}
// Unmarshal unmarshals a response body for the EC2 protocol.
func Unmarshal(r *request.Request) {
defer r.HTTPResponse.Body.Close()
if r.DataFilled() {
decoder := xml.NewDecoder(r.HTTPResponse.Body)
err := xmlutil.UnmarshalXML(r.Data, decoder, "")
if err != nil {
r.Error = awserr.New("SerializationError", "failed decoding EC2 Query response", err)
return
}
}
}
// UnmarshalMeta unmarshals response headers for the EC2 protocol.
func UnmarshalMeta(r *request.Request) {
// TODO implement unmarshaling of request IDs
}
type xmlErrorResponse struct {
XMLName xml.Name `xml:"Response"`
Code string `xml:"Errors>Error>Code"`
Message string `xml:"Errors>Error>Message"`
RequestID string `xml:"RequestId"`
}
// UnmarshalError unmarshals a response error for the EC2 protocol.
func UnmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
resp := &xmlErrorResponse{}
err := xml.NewDecoder(r.HTTPResponse.Body).Decode(resp)
if err != nil && err != io.EOF {
r.Error = awserr.New("SerializationError", "failed decoding EC2 Query error response", err)
} else {
r.Error = awserr.NewRequestFailure(
awserr.New(resp.Code, resp.Message, nil),
r.HTTPResponse.StatusCode,
resp.RequestID,
)
}
}

75
vendor/github.com/aws/aws-sdk-go/private/protocol/idempotency.go generated vendored Normal file
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@ -0,0 +1,75 @@
package protocol
import (
"crypto/rand"
"fmt"
"reflect"
)
// RandReader is the random reader the protocol package will use to read
// random bytes from. This is exported for testing, and should not be used.
var RandReader = rand.Reader
const idempotencyTokenFillTag = `idempotencyToken`
// CanSetIdempotencyToken returns true if the struct field should be
// automatically populated with a Idempotency token.
//
// Only *string and string type fields that are tagged with idempotencyToken
// which are not already set can be auto filled.
func CanSetIdempotencyToken(v reflect.Value, f reflect.StructField) bool {
switch u := v.Interface().(type) {
// To auto fill an Idempotency token the field must be a string,
// tagged for auto fill, and have a zero value.
case *string:
return u == nil && len(f.Tag.Get(idempotencyTokenFillTag)) != 0
case string:
return len(u) == 0 && len(f.Tag.Get(idempotencyTokenFillTag)) != 0
}
return false
}
// GetIdempotencyToken returns a randomly generated idempotency token.
func GetIdempotencyToken() string {
b := make([]byte, 16)
RandReader.Read(b)
return UUIDVersion4(b)
}
// SetIdempotencyToken will set the value provided with a Idempotency Token.
// Given that the value can be set. Will panic if value is not setable.
func SetIdempotencyToken(v reflect.Value) {
if v.Kind() == reflect.Ptr {
if v.IsNil() && v.CanSet() {
v.Set(reflect.New(v.Type().Elem()))
}
v = v.Elem()
}
v = reflect.Indirect(v)
if !v.CanSet() {
panic(fmt.Sprintf("unable to set idempotnecy token %v", v))
}
b := make([]byte, 16)
_, err := rand.Read(b)
if err != nil {
// TODO handle error
return
}
v.Set(reflect.ValueOf(UUIDVersion4(b)))
}
// UUIDVersion4 returns a Version 4 random UUID from the byte slice provided
func UUIDVersion4(u []byte) string {
// https://en.wikipedia.org/wiki/Universally_unique_identifier#Version_4_.28random.29
// 13th character is "4"
u[6] = (u[6] | 0x40) & 0x4F
// 17th character is "8", "9", "a", or "b"
u[8] = (u[8] | 0x80) & 0xBF
return fmt.Sprintf(`%X-%X-%X-%X-%X`, u[0:4], u[4:6], u[6:8], u[8:10], u[10:])
}

251
vendor/github.com/aws/aws-sdk-go/private/protocol/json/jsonutil/build.go generated vendored Normal file
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@ -0,0 +1,251 @@
// Package jsonutil provides JSON serialisation of AWS requests and responses.
package jsonutil
import (
"bytes"
"encoding/base64"
"fmt"
"reflect"
"sort"
"strconv"
"time"
"github.com/aws/aws-sdk-go/private/protocol"
)
var timeType = reflect.ValueOf(time.Time{}).Type()
var byteSliceType = reflect.ValueOf([]byte{}).Type()
// BuildJSON builds a JSON string for a given object v.
func BuildJSON(v interface{}) ([]byte, error) {
var buf bytes.Buffer
err := buildAny(reflect.ValueOf(v), &buf, "")
return buf.Bytes(), err
}
func buildAny(value reflect.Value, buf *bytes.Buffer, tag reflect.StructTag) error {
value = reflect.Indirect(value)
if !value.IsValid() {
return nil
}
vtype := value.Type()
t := tag.Get("type")
if t == "" {
switch vtype.Kind() {
case reflect.Struct:
// also it can't be a time object
if value.Type() != timeType {
t = "structure"
}
case reflect.Slice:
// also it can't be a byte slice
if _, ok := value.Interface().([]byte); !ok {
t = "list"
}
case reflect.Map:
t = "map"
}
}
switch t {
case "structure":
if field, ok := vtype.FieldByName("_"); ok {
tag = field.Tag
}
return buildStruct(value, buf, tag)
case "list":
return buildList(value, buf, tag)
case "map":
return buildMap(value, buf, tag)
default:
return buildScalar(value, buf, tag)
}
}
func buildStruct(value reflect.Value, buf *bytes.Buffer, tag reflect.StructTag) error {
if !value.IsValid() {
return nil
}
// unwrap payloads
if payload := tag.Get("payload"); payload != "" {
field, _ := value.Type().FieldByName(payload)
tag = field.Tag
value = elemOf(value.FieldByName(payload))
if !value.IsValid() {
return nil
}
}
buf.WriteByte('{')
t := value.Type()
first := true
for i := 0; i < t.NumField(); i++ {
member := value.Field(i)
field := t.Field(i)
if field.PkgPath != "" {
continue // ignore unexported fields
}
if field.Tag.Get("json") == "-" {
continue
}
if field.Tag.Get("location") != "" {
continue // ignore non-body elements
}
if protocol.CanSetIdempotencyToken(member, field) {
token := protocol.GetIdempotencyToken()
member = reflect.ValueOf(&token)
}
if (member.Kind() == reflect.Ptr || member.Kind() == reflect.Slice || member.Kind() == reflect.Map) && member.IsNil() {
continue // ignore unset fields
}
if first {
first = false
} else {
buf.WriteByte(',')
}
// figure out what this field is called
name := field.Name
if locName := field.Tag.Get("locationName"); locName != "" {
name = locName
}
fmt.Fprintf(buf, "%q:", name)
err := buildAny(member, buf, field.Tag)
if err != nil {
return err
}
}
buf.WriteString("}")
return nil
}
func buildList(value reflect.Value, buf *bytes.Buffer, tag reflect.StructTag) error {
buf.WriteString("[")
for i := 0; i < value.Len(); i++ {
buildAny(value.Index(i), buf, "")
if i < value.Len()-1 {
buf.WriteString(",")
}
}
buf.WriteString("]")
return nil
}
type sortedValues []reflect.Value
func (sv sortedValues) Len() int { return len(sv) }
func (sv sortedValues) Swap(i, j int) { sv[i], sv[j] = sv[j], sv[i] }
func (sv sortedValues) Less(i, j int) bool { return sv[i].String() < sv[j].String() }
func buildMap(value reflect.Value, buf *bytes.Buffer, tag reflect.StructTag) error {
buf.WriteString("{")
var sv sortedValues = value.MapKeys()
sort.Sort(sv)
for i, k := range sv {
if i > 0 {
buf.WriteByte(',')
}
fmt.Fprintf(buf, "%q:", k)
buildAny(value.MapIndex(k), buf, "")
}
buf.WriteString("}")
return nil
}
func buildScalar(value reflect.Value, buf *bytes.Buffer, tag reflect.StructTag) error {
switch value.Kind() {
case reflect.String:
writeString(value.String(), buf)
case reflect.Bool:
buf.WriteString(strconv.FormatBool(value.Bool()))
case reflect.Int64:
buf.WriteString(strconv.FormatInt(value.Int(), 10))
case reflect.Float64:
buf.WriteString(strconv.FormatFloat(value.Float(), 'f', -1, 64))
default:
switch value.Type() {
case timeType:
converted := value.Interface().(time.Time)
buf.WriteString(strconv.FormatInt(converted.UTC().Unix(), 10))
case byteSliceType:
if !value.IsNil() {
converted := value.Interface().([]byte)
buf.WriteByte('"')
if len(converted) < 1024 {
// for small buffers, using Encode directly is much faster.
dst := make([]byte, base64.StdEncoding.EncodedLen(len(converted)))
base64.StdEncoding.Encode(dst, converted)
buf.Write(dst)
} else {
// for large buffers, avoid unnecessary extra temporary
// buffer space.
enc := base64.NewEncoder(base64.StdEncoding, buf)
enc.Write(converted)
enc.Close()
}
buf.WriteByte('"')
}
default:
return fmt.Errorf("unsupported JSON value %v (%s)", value.Interface(), value.Type())
}
}
return nil
}
func writeString(s string, buf *bytes.Buffer) {
buf.WriteByte('"')
for _, r := range s {
if r == '"' {
buf.WriteString(`\"`)
} else if r == '\\' {
buf.WriteString(`\\`)
} else if r == '\b' {
buf.WriteString(`\b`)
} else if r == '\f' {
buf.WriteString(`\f`)
} else if r == '\r' {
buf.WriteString(`\r`)
} else if r == '\t' {
buf.WriteString(`\t`)
} else if r == '\n' {
buf.WriteString(`\n`)
} else if r < 32 {
fmt.Fprintf(buf, "\\u%0.4x", r)
} else {
buf.WriteRune(r)
}
}
buf.WriteByte('"')
}
// Returns the reflection element of a value, if it is a pointer.
func elemOf(value reflect.Value) reflect.Value {
for value.Kind() == reflect.Ptr {
value = value.Elem()
}
return value
}

213
vendor/github.com/aws/aws-sdk-go/private/protocol/json/jsonutil/unmarshal.go generated vendored Normal file
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@ -0,0 +1,213 @@
package jsonutil
import (
"encoding/base64"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"reflect"
"time"
)
// UnmarshalJSON reads a stream and unmarshals the results in object v.
func UnmarshalJSON(v interface{}, stream io.Reader) error {
var out interface{}
b, err := ioutil.ReadAll(stream)
if err != nil {
return err
}
if len(b) == 0 {
return nil
}
if err := json.Unmarshal(b, &out); err != nil {
return err
}
return unmarshalAny(reflect.ValueOf(v), out, "")
}
func unmarshalAny(value reflect.Value, data interface{}, tag reflect.StructTag) error {
vtype := value.Type()
if vtype.Kind() == reflect.Ptr {
vtype = vtype.Elem() // check kind of actual element type
}
t := tag.Get("type")
if t == "" {
switch vtype.Kind() {
case reflect.Struct:
// also it can't be a time object
if _, ok := value.Interface().(*time.Time); !ok {
t = "structure"
}
case reflect.Slice:
// also it can't be a byte slice
if _, ok := value.Interface().([]byte); !ok {
t = "list"
}
case reflect.Map:
t = "map"
}
}
switch t {
case "structure":
if field, ok := vtype.FieldByName("_"); ok {
tag = field.Tag
}
return unmarshalStruct(value, data, tag)
case "list":
return unmarshalList(value, data, tag)
case "map":
return unmarshalMap(value, data, tag)
default:
return unmarshalScalar(value, data, tag)
}
}
func unmarshalStruct(value reflect.Value, data interface{}, tag reflect.StructTag) error {
if data == nil {
return nil
}
mapData, ok := data.(map[string]interface{})
if !ok {
return fmt.Errorf("JSON value is not a structure (%#v)", data)
}
t := value.Type()
if value.Kind() == reflect.Ptr {
if value.IsNil() { // create the structure if it's nil
s := reflect.New(value.Type().Elem())
value.Set(s)
value = s
}
value = value.Elem()
t = t.Elem()
}
// unwrap any payloads
if payload := tag.Get("payload"); payload != "" {
field, _ := t.FieldByName(payload)
return unmarshalAny(value.FieldByName(payload), data, field.Tag)
}
for i := 0; i < t.NumField(); i++ {
field := t.Field(i)
if field.PkgPath != "" {
continue // ignore unexported fields
}
// figure out what this field is called
name := field.Name
if locName := field.Tag.Get("locationName"); locName != "" {
name = locName
}
member := value.FieldByIndex(field.Index)
err := unmarshalAny(member, mapData[name], field.Tag)
if err != nil {
return err
}
}
return nil
}
func unmarshalList(value reflect.Value, data interface{}, tag reflect.StructTag) error {
if data == nil {
return nil
}
listData, ok := data.([]interface{})
if !ok {
return fmt.Errorf("JSON value is not a list (%#v)", data)
}
if value.IsNil() {
l := len(listData)
value.Set(reflect.MakeSlice(value.Type(), l, l))
}
for i, c := range listData {
err := unmarshalAny(value.Index(i), c, "")
if err != nil {
return err
}
}
return nil
}
func unmarshalMap(value reflect.Value, data interface{}, tag reflect.StructTag) error {
if data == nil {
return nil
}
mapData, ok := data.(map[string]interface{})
if !ok {
return fmt.Errorf("JSON value is not a map (%#v)", data)
}
if value.IsNil() {
value.Set(reflect.MakeMap(value.Type()))
}
for k, v := range mapData {
kvalue := reflect.ValueOf(k)
vvalue := reflect.New(value.Type().Elem()).Elem()
unmarshalAny(vvalue, v, "")
value.SetMapIndex(kvalue, vvalue)
}
return nil
}
func unmarshalScalar(value reflect.Value, data interface{}, tag reflect.StructTag) error {
errf := func() error {
return fmt.Errorf("unsupported value: %v (%s)", value.Interface(), value.Type())
}
switch d := data.(type) {
case nil:
return nil // nothing to do here
case string:
switch value.Interface().(type) {
case *string:
value.Set(reflect.ValueOf(&d))
case []byte:
b, err := base64.StdEncoding.DecodeString(d)
if err != nil {
return err
}
value.Set(reflect.ValueOf(b))
default:
return errf()
}
case float64:
switch value.Interface().(type) {
case *int64:
di := int64(d)
value.Set(reflect.ValueOf(&di))
case *float64:
value.Set(reflect.ValueOf(&d))
case *time.Time:
t := time.Unix(int64(d), 0).UTC()
value.Set(reflect.ValueOf(&t))
default:
return errf()
}
case bool:
switch value.Interface().(type) {
case *bool:
value.Set(reflect.ValueOf(&d))
default:
return errf()
}
default:
return fmt.Errorf("unsupported JSON value (%v)", data)
}
return nil
}

111
vendor/github.com/aws/aws-sdk-go/private/protocol/jsonrpc/jsonrpc.go generated vendored Normal file
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@ -0,0 +1,111 @@
// Package jsonrpc provides JSON RPC utilities for serialisation of AWS
// requests and responses.
package jsonrpc
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/input/json.json build_test.go
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/output/json.json unmarshal_test.go
import (
"encoding/json"
"io/ioutil"
"strings"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/json/jsonutil"
"github.com/aws/aws-sdk-go/private/protocol/rest"
)
var emptyJSON = []byte("{}")
// BuildHandler is a named request handler for building jsonrpc protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.jsonrpc.Build", Fn: Build}
// UnmarshalHandler is a named request handler for unmarshaling jsonrpc protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.jsonrpc.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling jsonrpc protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.jsonrpc.UnmarshalMeta", Fn: UnmarshalMeta}
// UnmarshalErrorHandler is a named request handler for unmarshaling jsonrpc protocol request errors
var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.jsonrpc.UnmarshalError", Fn: UnmarshalError}
// Build builds a JSON payload for a JSON RPC request.
func Build(req *request.Request) {
var buf []byte
var err error
if req.ParamsFilled() {
buf, err = jsonutil.BuildJSON(req.Params)
if err != nil {
req.Error = awserr.New("SerializationError", "failed encoding JSON RPC request", err)
return
}
} else {
buf = emptyJSON
}
if req.ClientInfo.TargetPrefix != "" || string(buf) != "{}" {
req.SetBufferBody(buf)
}
if req.ClientInfo.TargetPrefix != "" {
target := req.ClientInfo.TargetPrefix + "." + req.Operation.Name
req.HTTPRequest.Header.Add("X-Amz-Target", target)
}
if req.ClientInfo.JSONVersion != "" {
jsonVersion := req.ClientInfo.JSONVersion
req.HTTPRequest.Header.Add("Content-Type", "application/x-amz-json-"+jsonVersion)
}
}
// Unmarshal unmarshals a response for a JSON RPC service.
func Unmarshal(req *request.Request) {
defer req.HTTPResponse.Body.Close()
if req.DataFilled() {
err := jsonutil.UnmarshalJSON(req.Data, req.HTTPResponse.Body)
if err != nil {
req.Error = awserr.New("SerializationError", "failed decoding JSON RPC response", err)
}
}
return
}
// UnmarshalMeta unmarshals headers from a response for a JSON RPC service.
func UnmarshalMeta(req *request.Request) {
rest.UnmarshalMeta(req)
}
// UnmarshalError unmarshals an error response for a JSON RPC service.
func UnmarshalError(req *request.Request) {
defer req.HTTPResponse.Body.Close()
bodyBytes, err := ioutil.ReadAll(req.HTTPResponse.Body)
if err != nil {
req.Error = awserr.New("SerializationError", "failed reading JSON RPC error response", err)
return
}
if len(bodyBytes) == 0 {
req.Error = awserr.NewRequestFailure(
awserr.New("SerializationError", req.HTTPResponse.Status, nil),
req.HTTPResponse.StatusCode,
"",
)
return
}
var jsonErr jsonErrorResponse
if err := json.Unmarshal(bodyBytes, &jsonErr); err != nil {
req.Error = awserr.New("SerializationError", "failed decoding JSON RPC error response", err)
return
}
codes := strings.SplitN(jsonErr.Code, "#", 2)
req.Error = awserr.NewRequestFailure(
awserr.New(codes[len(codes)-1], jsonErr.Message, nil),
req.HTTPResponse.StatusCode,
req.RequestID,
)
}
type jsonErrorResponse struct {
Code string `json:"__type"`
Message string `json:"message"`
}

36
vendor/github.com/aws/aws-sdk-go/private/protocol/query/build.go generated vendored Normal file
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@ -0,0 +1,36 @@
// Package query provides serialisation of AWS query requests, and responses.
package query
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/input/query.json build_test.go
import (
"net/url"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/query/queryutil"
)
// BuildHandler is a named request handler for building query protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.query.Build", Fn: Build}
// Build builds a request for an AWS Query service.
func Build(r *request.Request) {
body := url.Values{
"Action": {r.Operation.Name},
"Version": {r.ClientInfo.APIVersion},
}
if err := queryutil.Parse(body, r.Params, false); err != nil {
r.Error = awserr.New("SerializationError", "failed encoding Query request", err)
return
}
if r.ExpireTime == 0 {
r.HTTPRequest.Method = "POST"
r.HTTPRequest.Header.Set("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
r.SetBufferBody([]byte(body.Encode()))
} else { // This is a pre-signed request
r.HTTPRequest.Method = "GET"
r.HTTPRequest.URL.RawQuery = body.Encode()
}
}

230
vendor/github.com/aws/aws-sdk-go/private/protocol/query/queryutil/queryutil.go generated vendored Normal file
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@ -0,0 +1,230 @@
package queryutil
import (
"encoding/base64"
"fmt"
"net/url"
"reflect"
"sort"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/private/protocol"
)
// Parse parses an object i and fills a url.Values object. The isEC2 flag
// indicates if this is the EC2 Query sub-protocol.
func Parse(body url.Values, i interface{}, isEC2 bool) error {
q := queryParser{isEC2: isEC2}
return q.parseValue(body, reflect.ValueOf(i), "", "")
}
func elemOf(value reflect.Value) reflect.Value {
for value.Kind() == reflect.Ptr {
value = value.Elem()
}
return value
}
type queryParser struct {
isEC2 bool
}
func (q *queryParser) parseValue(v url.Values, value reflect.Value, prefix string, tag reflect.StructTag) error {
value = elemOf(value)
// no need to handle zero values
if !value.IsValid() {
return nil
}
t := tag.Get("type")
if t == "" {
switch value.Kind() {
case reflect.Struct:
t = "structure"
case reflect.Slice:
t = "list"
case reflect.Map:
t = "map"
}
}
switch t {
case "structure":
return q.parseStruct(v, value, prefix)
case "list":
return q.parseList(v, value, prefix, tag)
case "map":
return q.parseMap(v, value, prefix, tag)
default:
return q.parseScalar(v, value, prefix, tag)
}
}
func (q *queryParser) parseStruct(v url.Values, value reflect.Value, prefix string) error {
if !value.IsValid() {
return nil
}
t := value.Type()
for i := 0; i < value.NumField(); i++ {
elemValue := elemOf(value.Field(i))
field := t.Field(i)
if field.PkgPath != "" {
continue // ignore unexported fields
}
if protocol.CanSetIdempotencyToken(value.Field(i), field) {
token := protocol.GetIdempotencyToken()
elemValue = reflect.ValueOf(token)
}
var name string
if q.isEC2 {
name = field.Tag.Get("queryName")
}
if name == "" {
if field.Tag.Get("flattened") != "" && field.Tag.Get("locationNameList") != "" {
name = field.Tag.Get("locationNameList")
} else if locName := field.Tag.Get("locationName"); locName != "" {
name = locName
}
if name != "" && q.isEC2 {
name = strings.ToUpper(name[0:1]) + name[1:]
}
}
if name == "" {
name = field.Name
}
if prefix != "" {
name = prefix + "." + name
}
if err := q.parseValue(v, elemValue, name, field.Tag); err != nil {
return err
}
}
return nil
}
func (q *queryParser) parseList(v url.Values, value reflect.Value, prefix string, tag reflect.StructTag) error {
// If it's empty, generate an empty value
if !value.IsNil() && value.Len() == 0 {
v.Set(prefix, "")
return nil
}
// check for unflattened list member
if !q.isEC2 && tag.Get("flattened") == "" {
prefix += ".member"
}
for i := 0; i < value.Len(); i++ {
slicePrefix := prefix
if slicePrefix == "" {
slicePrefix = strconv.Itoa(i + 1)
} else {
slicePrefix = slicePrefix + "." + strconv.Itoa(i+1)
}
if err := q.parseValue(v, value.Index(i), slicePrefix, ""); err != nil {
return err
}
}
return nil
}
func (q *queryParser) parseMap(v url.Values, value reflect.Value, prefix string, tag reflect.StructTag) error {
// If it's empty, generate an empty value
if !value.IsNil() && value.Len() == 0 {
v.Set(prefix, "")
return nil
}
// check for unflattened list member
if !q.isEC2 && tag.Get("flattened") == "" {
prefix += ".entry"
}
// sort keys for improved serialization consistency.
// this is not strictly necessary for protocol support.
mapKeyValues := value.MapKeys()
mapKeys := map[string]reflect.Value{}
mapKeyNames := make([]string, len(mapKeyValues))
for i, mapKey := range mapKeyValues {
name := mapKey.String()
mapKeys[name] = mapKey
mapKeyNames[i] = name
}
sort.Strings(mapKeyNames)
for i, mapKeyName := range mapKeyNames {
mapKey := mapKeys[mapKeyName]
mapValue := value.MapIndex(mapKey)
kname := tag.Get("locationNameKey")
if kname == "" {
kname = "key"
}
vname := tag.Get("locationNameValue")
if vname == "" {
vname = "value"
}
// serialize key
var keyName string
if prefix == "" {
keyName = strconv.Itoa(i+1) + "." + kname
} else {
keyName = prefix + "." + strconv.Itoa(i+1) + "." + kname
}
if err := q.parseValue(v, mapKey, keyName, ""); err != nil {
return err
}
// serialize value
var valueName string
if prefix == "" {
valueName = strconv.Itoa(i+1) + "." + vname
} else {
valueName = prefix + "." + strconv.Itoa(i+1) + "." + vname
}
if err := q.parseValue(v, mapValue, valueName, ""); err != nil {
return err
}
}
return nil
}
func (q *queryParser) parseScalar(v url.Values, r reflect.Value, name string, tag reflect.StructTag) error {
switch value := r.Interface().(type) {
case string:
v.Set(name, value)
case []byte:
if !r.IsNil() {
v.Set(name, base64.StdEncoding.EncodeToString(value))
}
case bool:
v.Set(name, strconv.FormatBool(value))
case int64:
v.Set(name, strconv.FormatInt(value, 10))
case int:
v.Set(name, strconv.Itoa(value))
case float64:
v.Set(name, strconv.FormatFloat(value, 'f', -1, 64))
case float32:
v.Set(name, strconv.FormatFloat(float64(value), 'f', -1, 32))
case time.Time:
const ISO8601UTC = "2006-01-02T15:04:05Z"
v.Set(name, value.UTC().Format(ISO8601UTC))
default:
return fmt.Errorf("unsupported value for param %s: %v (%s)", name, r.Interface(), r.Type().Name())
}
return nil
}

35
vendor/github.com/aws/aws-sdk-go/private/protocol/query/unmarshal.go generated vendored Normal file
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@ -0,0 +1,35 @@
package query
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/output/query.json unmarshal_test.go
import (
"encoding/xml"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil"
)
// UnmarshalHandler is a named request handler for unmarshaling query protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.query.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling query protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.query.UnmarshalMeta", Fn: UnmarshalMeta}
// Unmarshal unmarshals a response for an AWS Query service.
func Unmarshal(r *request.Request) {
defer r.HTTPResponse.Body.Close()
if r.DataFilled() {
decoder := xml.NewDecoder(r.HTTPResponse.Body)
err := xmlutil.UnmarshalXML(r.Data, decoder, r.Operation.Name+"Result")
if err != nil {
r.Error = awserr.New("SerializationError", "failed decoding Query response", err)
return
}
}
}
// UnmarshalMeta unmarshals header response values for an AWS Query service.
func UnmarshalMeta(r *request.Request) {
r.RequestID = r.HTTPResponse.Header.Get("X-Amzn-Requestid")
}

40
vendor/github.com/aws/aws-sdk-go/private/protocol/query/unmarshal_error.go generated vendored Normal file
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@ -0,0 +1,40 @@
package query
import (
"encoding/xml"
"io"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
type xmlErrorResponse struct {
XMLName xml.Name `xml:"ErrorResponse"`
Code string `xml:"Error>Code"`
Message string `xml:"Error>Message"`
RequestID string `xml:"RequestId"`
}
// UnmarshalErrorHandler is a name request handler to unmarshal request errors
var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.query.UnmarshalError", Fn: UnmarshalError}
// UnmarshalError unmarshals an error response for an AWS Query service.
func UnmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
resp := &xmlErrorResponse{}
err := xml.NewDecoder(r.HTTPResponse.Body).Decode(resp)
if err != nil && err != io.EOF {
r.Error = awserr.New("SerializationError", "failed to decode query XML error response", err)
} else {
reqID := resp.RequestID
if reqID == "" {
reqID = r.RequestID
}
r.Error = awserr.NewRequestFailure(
awserr.New(resp.Code, resp.Message, nil),
r.HTTPResponse.StatusCode,
reqID,
)
}
}

257
vendor/github.com/aws/aws-sdk-go/private/protocol/rest/build.go generated vendored Normal file
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@ -0,0 +1,257 @@
// Package rest provides RESTful serialization of AWS requests and responses.
package rest
import (
"bytes"
"encoding/base64"
"fmt"
"io"
"net/http"
"net/url"
"path"
"reflect"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// RFC822 returns an RFC822 formatted timestamp for AWS protocols
const RFC822 = "Mon, 2 Jan 2006 15:04:05 GMT"
// Whether the byte value can be sent without escaping in AWS URLs
var noEscape [256]bool
var errValueNotSet = fmt.Errorf("value not set")
func init() {
for i := 0; i < len(noEscape); i++ {
// AWS expects every character except these to be escaped
noEscape[i] = (i >= 'A' && i <= 'Z') ||
(i >= 'a' && i <= 'z') ||
(i >= '0' && i <= '9') ||
i == '-' ||
i == '.' ||
i == '_' ||
i == '~'
}
}
// BuildHandler is a named request handler for building rest protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.rest.Build", Fn: Build}
// Build builds the REST component of a service request.
func Build(r *request.Request) {
if r.ParamsFilled() {
v := reflect.ValueOf(r.Params).Elem()
buildLocationElements(r, v)
buildBody(r, v)
}
}
func buildLocationElements(r *request.Request, v reflect.Value) {
query := r.HTTPRequest.URL.Query()
for i := 0; i < v.NumField(); i++ {
m := v.Field(i)
if n := v.Type().Field(i).Name; n[0:1] == strings.ToLower(n[0:1]) {
continue
}
if m.IsValid() {
field := v.Type().Field(i)
name := field.Tag.Get("locationName")
if name == "" {
name = field.Name
}
if m.Kind() == reflect.Ptr {
m = m.Elem()
}
if !m.IsValid() {
continue
}
var err error
switch field.Tag.Get("location") {
case "headers": // header maps
err = buildHeaderMap(&r.HTTPRequest.Header, m, field.Tag.Get("locationName"))
case "header":
err = buildHeader(&r.HTTPRequest.Header, m, name)
case "uri":
err = buildURI(r.HTTPRequest.URL, m, name)
case "querystring":
err = buildQueryString(query, m, name)
}
r.Error = err
}
if r.Error != nil {
return
}
}
r.HTTPRequest.URL.RawQuery = query.Encode()
updatePath(r.HTTPRequest.URL, r.HTTPRequest.URL.Path)
}
func buildBody(r *request.Request, v reflect.Value) {
if field, ok := v.Type().FieldByName("_"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
pfield, _ := v.Type().FieldByName(payloadName)
if ptag := pfield.Tag.Get("type"); ptag != "" && ptag != "structure" {
payload := reflect.Indirect(v.FieldByName(payloadName))
if payload.IsValid() && payload.Interface() != nil {
switch reader := payload.Interface().(type) {
case io.ReadSeeker:
r.SetReaderBody(reader)
case []byte:
r.SetBufferBody(reader)
case string:
r.SetStringBody(reader)
default:
r.Error = awserr.New("SerializationError",
"failed to encode REST request",
fmt.Errorf("unknown payload type %s", payload.Type()))
}
}
}
}
}
}
func buildHeader(header *http.Header, v reflect.Value, name string) error {
str, err := convertType(v)
if err == errValueNotSet {
return nil
} else if err != nil {
return awserr.New("SerializationError", "failed to encode REST request", err)
}
header.Add(name, str)
return nil
}
func buildHeaderMap(header *http.Header, v reflect.Value, prefix string) error {
for _, key := range v.MapKeys() {
str, err := convertType(v.MapIndex(key))
if err == errValueNotSet {
continue
} else if err != nil {
return awserr.New("SerializationError", "failed to encode REST request", err)
}
header.Add(prefix+key.String(), str)
}
return nil
}
func buildURI(u *url.URL, v reflect.Value, name string) error {
value, err := convertType(v)
if err == errValueNotSet {
return nil
} else if err != nil {
return awserr.New("SerializationError", "failed to encode REST request", err)
}
uri := u.Path
uri = strings.Replace(uri, "{"+name+"}", EscapePath(value, true), -1)
uri = strings.Replace(uri, "{"+name+"+}", EscapePath(value, false), -1)
u.Path = uri
return nil
}
func buildQueryString(query url.Values, v reflect.Value, name string) error {
switch value := v.Interface().(type) {
case []*string:
for _, item := range value {
query.Add(name, *item)
}
case map[string]*string:
for key, item := range value {
query.Add(key, *item)
}
case map[string][]*string:
for key, items := range value {
for _, item := range items {
query.Add(key, *item)
}
}
default:
str, err := convertType(v)
if err == errValueNotSet {
return nil
} else if err != nil {
return awserr.New("SerializationError", "failed to encode REST request", err)
}
query.Set(name, str)
}
return nil
}
func updatePath(url *url.URL, urlPath string) {
scheme, query := url.Scheme, url.RawQuery
hasSlash := strings.HasSuffix(urlPath, "/")
// clean up path
urlPath = path.Clean(urlPath)
if hasSlash && !strings.HasSuffix(urlPath, "/") {
urlPath += "/"
}
// get formatted URL minus scheme so we can build this into Opaque
url.Scheme, url.Path, url.RawQuery = "", "", ""
s := url.String()
url.Scheme = scheme
url.RawQuery = query
// build opaque URI
url.Opaque = s + urlPath
}
// EscapePath escapes part of a URL path in Amazon style
func EscapePath(path string, encodeSep bool) string {
var buf bytes.Buffer
for i := 0; i < len(path); i++ {
c := path[i]
if noEscape[c] || (c == '/' && !encodeSep) {
buf.WriteByte(c)
} else {
buf.WriteByte('%')
buf.WriteString(strings.ToUpper(strconv.FormatUint(uint64(c), 16)))
}
}
return buf.String()
}
func convertType(v reflect.Value) (string, error) {
v = reflect.Indirect(v)
if !v.IsValid() {
return "", errValueNotSet
}
var str string
switch value := v.Interface().(type) {
case string:
str = value
case []byte:
str = base64.StdEncoding.EncodeToString(value)
case bool:
str = strconv.FormatBool(value)
case int64:
str = strconv.FormatInt(value, 10)
case float64:
str = strconv.FormatFloat(value, 'f', -1, 64)
case time.Time:
str = value.UTC().Format(RFC822)
default:
err := fmt.Errorf("Unsupported value for param %v (%s)", v.Interface(), v.Type())
return "", err
}
return str, nil
}

45
vendor/github.com/aws/aws-sdk-go/private/protocol/rest/payload.go generated vendored Normal file
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@ -0,0 +1,45 @@
package rest
import "reflect"
// PayloadMember returns the payload field member of i if there is one, or nil.
func PayloadMember(i interface{}) interface{} {
if i == nil {
return nil
}
v := reflect.ValueOf(i).Elem()
if !v.IsValid() {
return nil
}
if field, ok := v.Type().FieldByName("_"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
field, _ := v.Type().FieldByName(payloadName)
if field.Tag.Get("type") != "structure" {
return nil
}
payload := v.FieldByName(payloadName)
if payload.IsValid() || (payload.Kind() == reflect.Ptr && !payload.IsNil()) {
return payload.Interface()
}
}
}
return nil
}
// PayloadType returns the type of a payload field member of i if there is one, or "".
func PayloadType(i interface{}) string {
v := reflect.Indirect(reflect.ValueOf(i))
if !v.IsValid() {
return ""
}
if field, ok := v.Type().FieldByName("_"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
if member, ok := v.Type().FieldByName(payloadName); ok {
return member.Tag.Get("type")
}
}
}
return ""
}

193
vendor/github.com/aws/aws-sdk-go/private/protocol/rest/unmarshal.go generated vendored Normal file
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@ -0,0 +1,193 @@
package rest
import (
"encoding/base64"
"fmt"
"io/ioutil"
"net/http"
"reflect"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// UnmarshalHandler is a named request handler for unmarshaling rest protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.rest.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling rest protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.rest.UnmarshalMeta", Fn: UnmarshalMeta}
// Unmarshal unmarshals the REST component of a response in a REST service.
func Unmarshal(r *request.Request) {
if r.DataFilled() {
v := reflect.Indirect(reflect.ValueOf(r.Data))
unmarshalBody(r, v)
}
}
// UnmarshalMeta unmarshals the REST metadata of a response in a REST service
func UnmarshalMeta(r *request.Request) {
r.RequestID = r.HTTPResponse.Header.Get("X-Amzn-Requestid")
if r.RequestID == "" {
// Alternative version of request id in the header
r.RequestID = r.HTTPResponse.Header.Get("X-Amz-Request-Id")
}
if r.DataFilled() {
v := reflect.Indirect(reflect.ValueOf(r.Data))
unmarshalLocationElements(r, v)
}
}
func unmarshalBody(r *request.Request, v reflect.Value) {
if field, ok := v.Type().FieldByName("_"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
pfield, _ := v.Type().FieldByName(payloadName)
if ptag := pfield.Tag.Get("type"); ptag != "" && ptag != "structure" {
payload := v.FieldByName(payloadName)
if payload.IsValid() {
switch payload.Interface().(type) {
case []byte:
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST response", err)
} else {
payload.Set(reflect.ValueOf(b))
}
case *string:
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST response", err)
} else {
str := string(b)
payload.Set(reflect.ValueOf(&str))
}
default:
switch payload.Type().String() {
case "io.ReadSeeker":
payload.Set(reflect.ValueOf(aws.ReadSeekCloser(r.HTTPResponse.Body)))
case "aws.ReadSeekCloser", "io.ReadCloser":
payload.Set(reflect.ValueOf(r.HTTPResponse.Body))
default:
r.Error = awserr.New("SerializationError",
"failed to decode REST response",
fmt.Errorf("unknown payload type %s", payload.Type()))
}
}
}
}
}
}
}
func unmarshalLocationElements(r *request.Request, v reflect.Value) {
for i := 0; i < v.NumField(); i++ {
m, field := v.Field(i), v.Type().Field(i)
if n := field.Name; n[0:1] == strings.ToLower(n[0:1]) {
continue
}
if m.IsValid() {
name := field.Tag.Get("locationName")
if name == "" {
name = field.Name
}
switch field.Tag.Get("location") {
case "statusCode":
unmarshalStatusCode(m, r.HTTPResponse.StatusCode)
case "header":
err := unmarshalHeader(m, r.HTTPResponse.Header.Get(name))
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST response", err)
break
}
case "headers":
prefix := field.Tag.Get("locationName")
err := unmarshalHeaderMap(m, r.HTTPResponse.Header, prefix)
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST response", err)
break
}
}
}
if r.Error != nil {
return
}
}
}
func unmarshalStatusCode(v reflect.Value, statusCode int) {
if !v.IsValid() {
return
}
switch v.Interface().(type) {
case *int64:
s := int64(statusCode)
v.Set(reflect.ValueOf(&s))
}
}
func unmarshalHeaderMap(r reflect.Value, headers http.Header, prefix string) error {
switch r.Interface().(type) {
case map[string]*string: // we only support string map value types
out := map[string]*string{}
for k, v := range headers {
k = http.CanonicalHeaderKey(k)
if strings.HasPrefix(strings.ToLower(k), strings.ToLower(prefix)) {
out[k[len(prefix):]] = &v[0]
}
}
r.Set(reflect.ValueOf(out))
}
return nil
}
func unmarshalHeader(v reflect.Value, header string) error {
if !v.IsValid() || (header == "" && v.Elem().Kind() != reflect.String) {
return nil
}
switch v.Interface().(type) {
case *string:
v.Set(reflect.ValueOf(&header))
case []byte:
b, err := base64.StdEncoding.DecodeString(header)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&b))
case *bool:
b, err := strconv.ParseBool(header)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&b))
case *int64:
i, err := strconv.ParseInt(header, 10, 64)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&i))
case *float64:
f, err := strconv.ParseFloat(header, 64)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&f))
case *time.Time:
t, err := time.Parse(RFC822, header)
if err != nil {
return err
}
v.Set(reflect.ValueOf(&t))
default:
err := fmt.Errorf("Unsupported value for param %v (%s)", v.Interface(), v.Type())
return err
}
return nil
}

91
vendor/github.com/aws/aws-sdk-go/private/protocol/restjson/restjson.go generated vendored Normal file
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@ -0,0 +1,91 @@
// Package restjson provides RESTful JSON serialisation of AWS
// requests and responses.
package restjson
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/input/rest-json.json build_test.go
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/output/rest-json.json unmarshal_test.go
import (
"encoding/json"
"io/ioutil"
"strings"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/jsonrpc"
"github.com/aws/aws-sdk-go/private/protocol/rest"
)
// BuildHandler is a named request handler for building restjson protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.restjson.Build", Fn: Build}
// UnmarshalHandler is a named request handler for unmarshaling restjson protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.restjson.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling restjson protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.restjson.UnmarshalMeta", Fn: UnmarshalMeta}
// UnmarshalErrorHandler is a named request handler for unmarshaling restjson protocol request errors
var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.restjson.UnmarshalError", Fn: UnmarshalError}
// Build builds a request for the REST JSON protocol.
func Build(r *request.Request) {
rest.Build(r)
if t := rest.PayloadType(r.Params); t == "structure" || t == "" {
jsonrpc.Build(r)
}
}
// Unmarshal unmarshals a response body for the REST JSON protocol.
func Unmarshal(r *request.Request) {
if t := rest.PayloadType(r.Data); t == "structure" || t == "" {
jsonrpc.Unmarshal(r)
} else {
rest.Unmarshal(r)
}
}
// UnmarshalMeta unmarshals response headers for the REST JSON protocol.
func UnmarshalMeta(r *request.Request) {
rest.UnmarshalMeta(r)
}
// UnmarshalError unmarshals a response error for the REST JSON protocol.
func UnmarshalError(r *request.Request) {
code := r.HTTPResponse.Header.Get("X-Amzn-Errortype")
bodyBytes, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "failed reading REST JSON error response", err)
return
}
if len(bodyBytes) == 0 {
r.Error = awserr.NewRequestFailure(
awserr.New("SerializationError", r.HTTPResponse.Status, nil),
r.HTTPResponse.StatusCode,
"",
)
return
}
var jsonErr jsonErrorResponse
if err := json.Unmarshal(bodyBytes, &jsonErr); err != nil {
r.Error = awserr.New("SerializationError", "failed decoding REST JSON error response", err)
return
}
if code == "" {
code = jsonErr.Code
}
code = strings.SplitN(code, ":", 2)[0]
r.Error = awserr.NewRequestFailure(
awserr.New(code, jsonErr.Message, nil),
r.HTTPResponse.StatusCode,
r.RequestID,
)
}
type jsonErrorResponse struct {
Code string `json:"code"`
Message string `json:"message"`
}

69
vendor/github.com/aws/aws-sdk-go/private/protocol/restxml/restxml.go generated vendored Normal file
View File

@ -0,0 +1,69 @@
// Package restxml provides RESTful XML serialisation of AWS
// requests and responses.
package restxml
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/input/rest-xml.json build_test.go
//go:generate go run ../../../models/protocol_tests/generate.go ../../../models/protocol_tests/output/rest-xml.json unmarshal_test.go
import (
"bytes"
"encoding/xml"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/query"
"github.com/aws/aws-sdk-go/private/protocol/rest"
"github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil"
)
// BuildHandler is a named request handler for building restxml protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.restxml.Build", Fn: Build}
// UnmarshalHandler is a named request handler for unmarshaling restxml protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.restxml.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling restxml protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.restxml.UnmarshalMeta", Fn: UnmarshalMeta}
// UnmarshalErrorHandler is a named request handler for unmarshaling restxml protocol request errors
var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.restxml.UnmarshalError", Fn: UnmarshalError}
// Build builds a request payload for the REST XML protocol.
func Build(r *request.Request) {
rest.Build(r)
if t := rest.PayloadType(r.Params); t == "structure" || t == "" {
var buf bytes.Buffer
err := xmlutil.BuildXML(r.Params, xml.NewEncoder(&buf))
if err != nil {
r.Error = awserr.New("SerializationError", "failed to encode rest XML request", err)
return
}
r.SetBufferBody(buf.Bytes())
}
}
// Unmarshal unmarshals a payload response for the REST XML protocol.
func Unmarshal(r *request.Request) {
if t := rest.PayloadType(r.Data); t == "structure" || t == "" {
defer r.HTTPResponse.Body.Close()
decoder := xml.NewDecoder(r.HTTPResponse.Body)
err := xmlutil.UnmarshalXML(r.Data, decoder, "")
if err != nil {
r.Error = awserr.New("SerializationError", "failed to decode REST XML response", err)
return
}
} else {
rest.Unmarshal(r)
}
}
// UnmarshalMeta unmarshals response headers for the REST XML protocol.
func UnmarshalMeta(r *request.Request) {
rest.UnmarshalMeta(r)
}
// UnmarshalError unmarshals a response error for the REST XML protocol.
func UnmarshalError(r *request.Request) {
query.UnmarshalError(r)
}

21
vendor/github.com/aws/aws-sdk-go/private/protocol/unmarshal.go generated vendored Normal file
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@ -0,0 +1,21 @@
package protocol
import (
"io"
"io/ioutil"
"github.com/aws/aws-sdk-go/aws/request"
)
// UnmarshalDiscardBodyHandler is a named request handler to empty and close a response's body
var UnmarshalDiscardBodyHandler = request.NamedHandler{Name: "awssdk.shared.UnmarshalDiscardBody", Fn: UnmarshalDiscardBody}
// UnmarshalDiscardBody is a request handler to empty a response's body and closing it.
func UnmarshalDiscardBody(r *request.Request) {
if r.HTTPResponse == nil || r.HTTPResponse.Body == nil {
return
}
io.Copy(ioutil.Discard, r.HTTPResponse.Body)
r.HTTPResponse.Body.Close()
}

293
vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/build.go generated vendored Normal file
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@ -0,0 +1,293 @@
// Package xmlutil provides XML serialisation of AWS requests and responses.
package xmlutil
import (
"encoding/base64"
"encoding/xml"
"fmt"
"reflect"
"sort"
"strconv"
"time"
"github.com/aws/aws-sdk-go/private/protocol"
)
// BuildXML will serialize params into an xml.Encoder.
// Error will be returned if the serialization of any of the params or nested values fails.
func BuildXML(params interface{}, e *xml.Encoder) error {
b := xmlBuilder{encoder: e, namespaces: map[string]string{}}
root := NewXMLElement(xml.Name{})
if err := b.buildValue(reflect.ValueOf(params), root, ""); err != nil {
return err
}
for _, c := range root.Children {
for _, v := range c {
return StructToXML(e, v, false)
}
}
return nil
}
// Returns the reflection element of a value, if it is a pointer.
func elemOf(value reflect.Value) reflect.Value {
for value.Kind() == reflect.Ptr {
value = value.Elem()
}
return value
}
// A xmlBuilder serializes values from Go code to XML
type xmlBuilder struct {
encoder *xml.Encoder
namespaces map[string]string
}
// buildValue generic XMLNode builder for any type. Will build value for their specific type
// struct, list, map, scalar.
//
// Also takes a "type" tag value to set what type a value should be converted to XMLNode as. If
// type is not provided reflect will be used to determine the value's type.
func (b *xmlBuilder) buildValue(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
value = elemOf(value)
if !value.IsValid() { // no need to handle zero values
return nil
} else if tag.Get("location") != "" { // don't handle non-body location values
return nil
}
t := tag.Get("type")
if t == "" {
switch value.Kind() {
case reflect.Struct:
t = "structure"
case reflect.Slice:
t = "list"
case reflect.Map:
t = "map"
}
}
switch t {
case "structure":
if field, ok := value.Type().FieldByName("_"); ok {
tag = tag + reflect.StructTag(" ") + field.Tag
}
return b.buildStruct(value, current, tag)
case "list":
return b.buildList(value, current, tag)
case "map":
return b.buildMap(value, current, tag)
default:
return b.buildScalar(value, current, tag)
}
}
// buildStruct adds a struct and its fields to the current XMLNode. All fields any any nested
// types are converted to XMLNodes also.
func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
if !value.IsValid() {
return nil
}
fieldAdded := false
// unwrap payloads
if payload := tag.Get("payload"); payload != "" {
field, _ := value.Type().FieldByName(payload)
tag = field.Tag
value = elemOf(value.FieldByName(payload))
if !value.IsValid() {
return nil
}
}
child := NewXMLElement(xml.Name{Local: tag.Get("locationName")})
// there is an xmlNamespace associated with this struct
if prefix, uri := tag.Get("xmlPrefix"), tag.Get("xmlURI"); uri != "" {
ns := xml.Attr{
Name: xml.Name{Local: "xmlns"},
Value: uri,
}
if prefix != "" {
b.namespaces[prefix] = uri // register the namespace
ns.Name.Local = "xmlns:" + prefix
}
child.Attr = append(child.Attr, ns)
}
t := value.Type()
for i := 0; i < value.NumField(); i++ {
member := elemOf(value.Field(i))
field := t.Field(i)
if field.PkgPath != "" {
continue // ignore unexported fields
}
mTag := field.Tag
if mTag.Get("location") != "" { // skip non-body members
continue
}
if protocol.CanSetIdempotencyToken(value.Field(i), field) {
token := protocol.GetIdempotencyToken()
member = reflect.ValueOf(token)
}
memberName := mTag.Get("locationName")
if memberName == "" {
memberName = field.Name
mTag = reflect.StructTag(string(mTag) + ` locationName:"` + memberName + `"`)
}
if err := b.buildValue(member, child, mTag); err != nil {
return err
}
fieldAdded = true
}
if fieldAdded { // only append this child if we have one ore more valid members
current.AddChild(child)
}
return nil
}
// buildList adds the value's list items to the current XMLNode as children nodes. All
// nested values in the list are converted to XMLNodes also.
func (b *xmlBuilder) buildList(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
if value.IsNil() { // don't build omitted lists
return nil
}
// check for unflattened list member
flattened := tag.Get("flattened") != ""
xname := xml.Name{Local: tag.Get("locationName")}
if flattened {
for i := 0; i < value.Len(); i++ {
child := NewXMLElement(xname)
current.AddChild(child)
if err := b.buildValue(value.Index(i), child, ""); err != nil {
return err
}
}
} else {
list := NewXMLElement(xname)
current.AddChild(list)
for i := 0; i < value.Len(); i++ {
iname := tag.Get("locationNameList")
if iname == "" {
iname = "member"
}
child := NewXMLElement(xml.Name{Local: iname})
list.AddChild(child)
if err := b.buildValue(value.Index(i), child, ""); err != nil {
return err
}
}
}
return nil
}
// buildMap adds the value's key/value pairs to the current XMLNode as children nodes. All
// nested values in the map are converted to XMLNodes also.
//
// Error will be returned if it is unable to build the map's values into XMLNodes
func (b *xmlBuilder) buildMap(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
if value.IsNil() { // don't build omitted maps
return nil
}
maproot := NewXMLElement(xml.Name{Local: tag.Get("locationName")})
current.AddChild(maproot)
current = maproot
kname, vname := "key", "value"
if n := tag.Get("locationNameKey"); n != "" {
kname = n
}
if n := tag.Get("locationNameValue"); n != "" {
vname = n
}
// sorting is not required for compliance, but it makes testing easier
keys := make([]string, value.Len())
for i, k := range value.MapKeys() {
keys[i] = k.String()
}
sort.Strings(keys)
for _, k := range keys {
v := value.MapIndex(reflect.ValueOf(k))
mapcur := current
if tag.Get("flattened") == "" { // add "entry" tag to non-flat maps
child := NewXMLElement(xml.Name{Local: "entry"})
mapcur.AddChild(child)
mapcur = child
}
kchild := NewXMLElement(xml.Name{Local: kname})
kchild.Text = k
vchild := NewXMLElement(xml.Name{Local: vname})
mapcur.AddChild(kchild)
mapcur.AddChild(vchild)
if err := b.buildValue(v, vchild, ""); err != nil {
return err
}
}
return nil
}
// buildScalar will convert the value into a string and append it as a attribute or child
// of the current XMLNode.
//
// The value will be added as an attribute if tag contains a "xmlAttribute" attribute value.
//
// Error will be returned if the value type is unsupported.
func (b *xmlBuilder) buildScalar(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
var str string
switch converted := value.Interface().(type) {
case string:
str = converted
case []byte:
if !value.IsNil() {
str = base64.StdEncoding.EncodeToString(converted)
}
case bool:
str = strconv.FormatBool(converted)
case int64:
str = strconv.FormatInt(converted, 10)
case int:
str = strconv.Itoa(converted)
case float64:
str = strconv.FormatFloat(converted, 'f', -1, 64)
case float32:
str = strconv.FormatFloat(float64(converted), 'f', -1, 32)
case time.Time:
const ISO8601UTC = "2006-01-02T15:04:05Z"
str = converted.UTC().Format(ISO8601UTC)
default:
return fmt.Errorf("unsupported value for param %s: %v (%s)",
tag.Get("locationName"), value.Interface(), value.Type().Name())
}
xname := xml.Name{Local: tag.Get("locationName")}
if tag.Get("xmlAttribute") != "" { // put into current node's attribute list
attr := xml.Attr{Name: xname, Value: str}
current.Attr = append(current.Attr, attr)
} else { // regular text node
current.AddChild(&XMLNode{Name: xname, Text: str})
}
return nil
}

260
vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/unmarshal.go generated vendored Normal file
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@ -0,0 +1,260 @@
package xmlutil
import (
"encoding/base64"
"encoding/xml"
"fmt"
"io"
"reflect"
"strconv"
"strings"
"time"
)
// UnmarshalXML deserializes an xml.Decoder into the container v. V
// needs to match the shape of the XML expected to be decoded.
// If the shape doesn't match unmarshaling will fail.
func UnmarshalXML(v interface{}, d *xml.Decoder, wrapper string) error {
n, _ := XMLToStruct(d, nil)
if n.Children != nil {
for _, root := range n.Children {
for _, c := range root {
if wrappedChild, ok := c.Children[wrapper]; ok {
c = wrappedChild[0] // pull out wrapped element
}
err := parse(reflect.ValueOf(v), c, "")
if err != nil {
if err == io.EOF {
return nil
}
return err
}
}
}
return nil
}
return nil
}
// parse deserializes any value from the XMLNode. The type tag is used to infer the type, or reflect
// will be used to determine the type from r.
func parse(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
rtype := r.Type()
if rtype.Kind() == reflect.Ptr {
rtype = rtype.Elem() // check kind of actual element type
}
t := tag.Get("type")
if t == "" {
switch rtype.Kind() {
case reflect.Struct:
t = "structure"
case reflect.Slice:
t = "list"
case reflect.Map:
t = "map"
}
}
switch t {
case "structure":
if field, ok := rtype.FieldByName("_"); ok {
tag = field.Tag
}
return parseStruct(r, node, tag)
case "list":
return parseList(r, node, tag)
case "map":
return parseMap(r, node, tag)
default:
return parseScalar(r, node, tag)
}
}
// parseStruct deserializes a structure and its fields from an XMLNode. Any nested
// types in the structure will also be deserialized.
func parseStruct(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
t := r.Type()
if r.Kind() == reflect.Ptr {
if r.IsNil() { // create the structure if it's nil
s := reflect.New(r.Type().Elem())
r.Set(s)
r = s
}
r = r.Elem()
t = t.Elem()
}
// unwrap any payloads
if payload := tag.Get("payload"); payload != "" {
field, _ := t.FieldByName(payload)
return parseStruct(r.FieldByName(payload), node, field.Tag)
}
for i := 0; i < t.NumField(); i++ {
field := t.Field(i)
if c := field.Name[0:1]; strings.ToLower(c) == c {
continue // ignore unexported fields
}
// figure out what this field is called
name := field.Name
if field.Tag.Get("flattened") != "" && field.Tag.Get("locationNameList") != "" {
name = field.Tag.Get("locationNameList")
} else if locName := field.Tag.Get("locationName"); locName != "" {
name = locName
}
// try to find the field by name in elements
elems := node.Children[name]
if elems == nil { // try to find the field in attributes
for _, a := range node.Attr {
if name == a.Name.Local {
// turn this into a text node for de-serializing
elems = []*XMLNode{{Text: a.Value}}
}
}
}
member := r.FieldByName(field.Name)
for _, elem := range elems {
err := parse(member, elem, field.Tag)
if err != nil {
return err
}
}
}
return nil
}
// parseList deserializes a list of values from an XML node. Each list entry
// will also be deserialized.
func parseList(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
t := r.Type()
if tag.Get("flattened") == "" { // look at all item entries
mname := "member"
if name := tag.Get("locationNameList"); name != "" {
mname = name
}
if Children, ok := node.Children[mname]; ok {
if r.IsNil() {
r.Set(reflect.MakeSlice(t, len(Children), len(Children)))
}
for i, c := range Children {
err := parse(r.Index(i), c, "")
if err != nil {
return err
}
}
}
} else { // flattened list means this is a single element
if r.IsNil() {
r.Set(reflect.MakeSlice(t, 0, 0))
}
childR := reflect.Zero(t.Elem())
r.Set(reflect.Append(r, childR))
err := parse(r.Index(r.Len()-1), node, "")
if err != nil {
return err
}
}
return nil
}
// parseMap deserializes a map from an XMLNode. The direct children of the XMLNode
// will also be deserialized as map entries.
func parseMap(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
if r.IsNil() {
r.Set(reflect.MakeMap(r.Type()))
}
if tag.Get("flattened") == "" { // look at all child entries
for _, entry := range node.Children["entry"] {
parseMapEntry(r, entry, tag)
}
} else { // this element is itself an entry
parseMapEntry(r, node, tag)
}
return nil
}
// parseMapEntry deserializes a map entry from a XML node.
func parseMapEntry(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
kname, vname := "key", "value"
if n := tag.Get("locationNameKey"); n != "" {
kname = n
}
if n := tag.Get("locationNameValue"); n != "" {
vname = n
}
keys, ok := node.Children[kname]
values := node.Children[vname]
if ok {
for i, key := range keys {
keyR := reflect.ValueOf(key.Text)
value := values[i]
valueR := reflect.New(r.Type().Elem()).Elem()
parse(valueR, value, "")
r.SetMapIndex(keyR, valueR)
}
}
return nil
}
// parseScaller deserializes an XMLNode value into a concrete type based on the
// interface type of r.
//
// Error is returned if the deserialization fails due to invalid type conversion,
// or unsupported interface type.
func parseScalar(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
switch r.Interface().(type) {
case *string:
r.Set(reflect.ValueOf(&node.Text))
return nil
case []byte:
b, err := base64.StdEncoding.DecodeString(node.Text)
if err != nil {
return err
}
r.Set(reflect.ValueOf(b))
case *bool:
v, err := strconv.ParseBool(node.Text)
if err != nil {
return err
}
r.Set(reflect.ValueOf(&v))
case *int64:
v, err := strconv.ParseInt(node.Text, 10, 64)
if err != nil {
return err
}
r.Set(reflect.ValueOf(&v))
case *float64:
v, err := strconv.ParseFloat(node.Text, 64)
if err != nil {
return err
}
r.Set(reflect.ValueOf(&v))
case *time.Time:
const ISO8601UTC = "2006-01-02T15:04:05Z"
t, err := time.Parse(ISO8601UTC, node.Text)
if err != nil {
return err
}
r.Set(reflect.ValueOf(&t))
default:
return fmt.Errorf("unsupported value: %v (%s)", r.Interface(), r.Type())
}
return nil
}

105
vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/xml_to_struct.go generated vendored Normal file
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@ -0,0 +1,105 @@
package xmlutil
import (
"encoding/xml"
"io"
"sort"
)
// A XMLNode contains the values to be encoded or decoded.
type XMLNode struct {
Name xml.Name `json:",omitempty"`
Children map[string][]*XMLNode `json:",omitempty"`
Text string `json:",omitempty"`
Attr []xml.Attr `json:",omitempty"`
}
// NewXMLElement returns a pointer to a new XMLNode initialized to default values.
func NewXMLElement(name xml.Name) *XMLNode {
return &XMLNode{
Name: name,
Children: map[string][]*XMLNode{},
Attr: []xml.Attr{},
}
}
// AddChild adds child to the XMLNode.
func (n *XMLNode) AddChild(child *XMLNode) {
if _, ok := n.Children[child.Name.Local]; !ok {
n.Children[child.Name.Local] = []*XMLNode{}
}
n.Children[child.Name.Local] = append(n.Children[child.Name.Local], child)
}
// XMLToStruct converts a xml.Decoder stream to XMLNode with nested values.
func XMLToStruct(d *xml.Decoder, s *xml.StartElement) (*XMLNode, error) {
out := &XMLNode{}
for {
tok, err := d.Token()
if tok == nil || err == io.EOF {
break
}
if err != nil {
return out, err
}
switch typed := tok.(type) {
case xml.CharData:
out.Text = string(typed.Copy())
case xml.StartElement:
el := typed.Copy()
out.Attr = el.Attr
if out.Children == nil {
out.Children = map[string][]*XMLNode{}
}
name := typed.Name.Local
slice := out.Children[name]
if slice == nil {
slice = []*XMLNode{}
}
node, e := XMLToStruct(d, &el)
if e != nil {
return out, e
}
node.Name = typed.Name
slice = append(slice, node)
out.Children[name] = slice
case xml.EndElement:
if s != nil && s.Name.Local == typed.Name.Local { // matching end token
return out, nil
}
}
}
return out, nil
}
// StructToXML writes an XMLNode to a xml.Encoder as tokens.
func StructToXML(e *xml.Encoder, node *XMLNode, sorted bool) error {
e.EncodeToken(xml.StartElement{Name: node.Name, Attr: node.Attr})
if node.Text != "" {
e.EncodeToken(xml.CharData([]byte(node.Text)))
} else if sorted {
sortedNames := []string{}
for k := range node.Children {
sortedNames = append(sortedNames, k)
}
sort.Strings(sortedNames)
for _, k := range sortedNames {
for _, v := range node.Children[k] {
StructToXML(e, v, sorted)
}
}
} else {
for _, c := range node.Children {
for _, v := range c {
StructToXML(e, v, sorted)
}
}
}
e.EncodeToken(xml.EndElement{Name: node.Name})
return e.Flush()
}

82
vendor/github.com/aws/aws-sdk-go/private/signer/v4/header_rules.go generated vendored Normal file
View File

@ -0,0 +1,82 @@
package v4
import (
"net/http"
"strings"
)
// validator houses a set of rule needed for validation of a
// string value
type rules []rule
// rule interface allows for more flexible rules and just simply
// checks whether or not a value adheres to that rule
type rule interface {
IsValid(value string) bool
}
// IsValid will iterate through all rules and see if any rules
// apply to the value and supports nested rules
func (r rules) IsValid(value string) bool {
for _, rule := range r {
if rule.IsValid(value) {
return true
}
}
return false
}
// mapRule generic rule for maps
type mapRule map[string]struct{}
// IsValid for the map rule satisfies whether it exists in the map
func (m mapRule) IsValid(value string) bool {
_, ok := m[value]
return ok
}
// whitelist is a generic rule for whitelisting
type whitelist struct {
rule
}
// IsValid for whitelist checks if the value is within the whitelist
func (w whitelist) IsValid(value string) bool {
return w.rule.IsValid(value)
}
// blacklist is a generic rule for blacklisting
type blacklist struct {
rule
}
// IsValid for whitelist checks if the value is within the whitelist
func (b blacklist) IsValid(value string) bool {
return !b.rule.IsValid(value)
}
type patterns []string
// IsValid for patterns checks each pattern and returns if a match has
// been found
func (p patterns) IsValid(value string) bool {
for _, pattern := range p {
if strings.HasPrefix(http.CanonicalHeaderKey(value), pattern) {
return true
}
}
return false
}
// inclusiveRules rules allow for rules to depend on one another
type inclusiveRules []rule
// IsValid will return true if all rules are true
func (r inclusiveRules) IsValid(value string) bool {
for _, rule := range r {
if !rule.IsValid(value) {
return false
}
}
return true
}

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