The security fix in 15b43a2 also introduced some unrelated refactoring to the file, which seems to be causing issues in some environments. This commit reverts the refactoring, and applies the security fix to each block individually.
extra-locales bundles have unique digests in their URLs, and include an indefinite cache-control header. Therefore we should include them in the heavily-cached group of URLs in NGINX.
NGINX v1.23 concatenates duplicate headers into a single comma-separated string. We were doing an equality check on `x-forwarded-proto`. If the request includes multiple `x-forwarded-proto` headers then this check would fail under NGINX v1.23, and our config assumed an `http` connection.
This commit updates the config to check for `https` at the end of the header, thereby restoring the old behavior when multiple `x-forwarded-proto` request headers are sent.
This allows a large volume of cookies in request headers. Discourse itself tries to minimise cookie size, but we cannot control other cookies set by other tools on the same domain.
* DEV: Increase nginx proxy buffer size
This is needed so we can reland the patch to move our asset preloading
from link tags in the response document to response headers.
This commit renames all secure_media related settings to secure_uploads_* along with the associated functionality.
This is being done because "media" does not really cover it, we aren't just doing this for images and videos etc. but for all uploads in the site.
Additionally, in future we want to secure more types of uploads, and enable a kind of "mixed mode" where some uploads are secure and some are not, so keeping media in the name is just confusing.
This also keeps compatibility with the `secure-media-uploads` path, and changes new
secure URLs to be `secure-uploads`.
Deprecated settings:
* secure_media -> secure_uploads
* secure_media_allow_embed_images_in_emails -> secure_uploads_allow_embed_images_in_emails
* secure_media_max_email_embed_image_size_kb -> secure_uploads_max_email_embed_image_size_kb
Re-lands the change initially proposed on #8359 but without a new nginx
location block, so it has less change surface.
Co-authored-by: Jeff Wong <awole20@gmail.com>
Co-authored-by: Jeff Wong <awole20@gmail.com>
Over the years we accrued many spelling mistakes in the code base.
This PR attempts to fix spelling mistakes and typos in all areas of the code that are extremely safe to change
- comments
- test descriptions
- other low risk areas
* DEV: add CORS header for all nginx rules of public folder files.
This reverts commit d628c65af0 and adding CORS header in two more places individually.
* strip out the href and xlink:href attributes from use element that
are _not_ anchors in svgs which can be used for XSS
* adding the content-disposition: attachment ensures that
uploaded SVGs cannot be opened and executed using the XSS exploit.
svgs embedded using an img tag do not suffer from the same exploit
Add nginx location to handle /secure-media-uploads/ requests .ico files were getting a 404 when being looked for via /secure-media-uploads/. this nginx config addition fixes the issue.
* FEATURE: Normalize the service worker route
Update cache headers so they are not immutable outside of the rails app
Add the ability to purge the service worker cache from localhost
Rails -> nginx will pass immutable flags so the file is cached until reloaded.
In most cases, nginx will have its cache flushed on rebuild (new image)
For those needing dynamic re-caching (such as upgrading via the UI),
a rake task for flushing the service worker script is provided
through `assets:flush_sw`
Previously our cache would expire any asset that was not accessed for 10
minutes. This is way too short and was never intended. All the assets we
are serving are usually very long living assets like avatars and css files
1 day is a reasonable setting here cause it offers far better protection.
I would consider upping this to a week though longer term.
Maximum disk space of cache was increased as well to 600m. Very unlikely to
ever hit this except on very large sites.
Additionally, this places all the cached assets in nested directories, we
never want cached files to be in one giant directory cause it is inefficient
Co-authored-by: Sam Saffron <sam.saffron@gmail.com>
Co-authored-by: David Taylor <david@taylorhq.com>
This gives more control over the request. In particular we can easily
lookup DNS dynamically, instead of only upon NGINX startup.
Previously, NGINX was looking up IP for the letter avatar service and
caching the CDN IP address, this caused issues if CDN changed IP, in
which letter avatars would be broken till a container restarted.
NGINX config has been updated to add caching. This change will require
a container rebuild.
The proxy will now function in development environments, so the patch
for `letter_avatar_proxy` has been removed.
David Taylor
Nat
Alan Guo Xiang Tan
Rafael dos Santos Silva
Martin Brennan
Roman Rizzi
Josh Soref
Vinoth Kannan
Penar Musaraj
Sam Saffron
Patrick Schleizer
Martin Brennan
Jeff Wong
Guo Xiang Tan
Andrew Schleifer
Kyle Zhao
Michael Brown
Robin Ward
Matt Palmer