Commit Graph

14 Commits

Author SHA1 Message Date
Ted Johansson 39c2f63b35 SECURITY: Add FinalDestination::FastImage that's SSRF safe 2023-03-16 15:27:09 -06:00
Loïc Guitaut f7c57fbc19 DEV: Enable `unless` cops
We discussed the use of `unless` internally and decided to enforce
available rules from rubocop to restrict its most problematic uses.
2023-02-21 10:30:48 +01:00
Daniel Waterworth 666536cbd1
DEV: Prefer \A and \z over ^ and $ in regexes (#19936) 2023-01-20 12:52:49 -06:00
Loïc Guitaut 14d97f9cf1 FEATURE: Show more context in Discourse topic oneboxes
Currently when generating a onebox for Discourse topics, some important
context is missing such as categories and tags.

This patch addresses this issue by introducing a new onebox engine
dedicated to display this information when available. Indeed to get this
new information, categories and tags are exposed in the topic metadata
as opengraph tags.
2023-01-11 14:22:53 +01:00
David Taylor 6417173082
DEV: Apply syntax_tree formatting to `lib/*` 2023-01-09 12:10:19 +00:00
Roman Rizzi c2e18c41a3
FIX: Check that the node has a src attr when getting size (#19696) 2023-01-03 15:27:05 -03:00
Sam 755ca0fcbb
PERF: stop downloading images from post processor and lean on uploads
Previously we would unconditionally fetch all images via HTTP to grab
original sizing from cooked post processor in 2 different spots.

This was wasteful as we already calculate and cache this info in upload records.

This also simplifies some specs and reduces use of mocks.
2022-11-25 12:40:31 +11:00
Martin Brennan 8ebd5edd1e
DEV: Rename secure_media to secure_uploads (#18376)
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
2022-09-29 09:24:33 +10:00
David Taylor 5238f6788c
FEATURE: Allow hotlinked media to be blocked (#16940)
This commit introduces a new site setting: `block_hotlinked_media`. When enabled, all attempts to hotlink media (images, videos, and audio) will fail, and be replaced with a linked placeholder. Exceptions to the rule can be added via `block_hotlinked_media_exceptions`.

`download_remote_image_to_local` can be used alongside this feature. In that case, hotlinked images will be blocked immediately when the post is created, but will then be replaced with the downloaded version a few seconds later.

This implementation is purely server-side, and does not impact the composer preview.

Technically, there are two stages to this feature:

1. `PrettyText.sanitize_hotlinked_media` is called during `PrettyText.cook`, and whenever new images are introduced by Onebox. It will iterate over all src/srcset attributes in the post HTML and check if they're allowed. If not, the attributes will be removed and replaced with a `data-blocked-hotlinked-src(set)` attribute

2. In the `CookedPostProcessor`, we iterate over all `data-blocked-hotlinked-src(set)` attributes and check whether we have a downloaded version of the media. If yes, we update the src to use the downloaded version. If not, the entire media element is replaced with a placeholder. The placeholder is labelled 'external media', and is a link to the offsite media.
2022-06-07 15:23:04 +01:00
David Taylor 0baabafa9d DEV: Map already-downloaded hotlinked images in post_process_cooked
Previously this mapping of **cooked** images was only being run for oneboxes. Now it runs for all images, so we can transform hotlinked images without needing to immediately update `raw`
2022-05-23 14:28:02 +01:00
Bianca Nenciu cbaf7c949b
FIX: Make sure max_oneboxes_per_post is enforced (#16215)
PostAnalyzer and CookedPostProcessor both replace URLs with oneboxes.
PostAnalyzer did not use the max_oneboxes_per_post site and setting and
CookedPostProcessor replaced at most max_oneboxes_per_post URLs ignoring
the oneboxes that were replaced already by PostAnalyzer.
2022-03-23 17:36:08 +02:00
Jarek Radosz ff530264f4
DEV: Fix a nokogiri deprecation (#16060)
```
warning: Passing a Node as the second parameter to Node.new is deprecated. Please pass a Document instead, or prefer an alternative constructor like Node#add_child. This will become an error in a future release of Nokogiri.
```
2022-02-26 03:52:11 +01:00
Natalie Tay 4c46c7e334
DEV: Remove xlink hrefs (#15059) 2021-11-25 15:22:43 +11:00
Mark VanLandingham 4da23e811b
DEV: Create CookedProcessMixin to process generic cooked (#15029) 2021-11-22 13:32:12 -06:00