Meta report: https://meta.discourse.org/t/excessive-requests-to-uploads-lookup-urls-leading-to-429-response/143119
* The data-orig-src attribute was not being removed from cooked
video and audio so the composer was infinitely trying to get the
URLs for them, which would never resolve to anything
* Also the code that retrieved the short URL was unscoped, and was
getting everything on the page. if running from the composer we
now scope to the preview window
* Also fixed a minor issue where the element href for the video
and audio tags was not being set when the short URL was found
Meta topic: https://meta.discourse.org/t/secure-media-uploads-expire/140894
This fixes the issue where if secure media was enabled, audio
and video files would do an initial load using the presigned
URL for the media to get metadata information e.g. duration of
track/video. However this started the expiry countdown for the
URL, so when a user pressed play on the media after 15 seconds
the media would be expired and AWS would return a 403 error.
We do not preload media if secure media is enabled. Otherwise
we just set the preload type to "metadata" which is the browser
default anyway.
Commit aa24be1 made it possible to build data attributes from image's
Markdown and this changes ensure that the resize controls still work
when data attributes are present.
For consistency this PR introduces using custom markdown and short upload:// URLs for video and audio uploads, rather than just treating them as links and relying on the oneboxer. The markdown syntax for videos is  and for audio it is .
This is achieved in discourse-markdown-it by modifying the rules for images in mardown-it via md.renderer.rules.image. We return HTML instead of the token when we encounter audio or video after | and the preview renders that HTML. Also when uploading an audio or video file we insert the relevant markdown into the composer.
Let's say post #2 quotes post number #1. If a user decides to quote the
quote in post #2, it should keep the information of post #1
("user_1, post: 1, topic: X"), instead of replacing with current post
info ("user_2, post: 2, topic: X").
* DEV: Fix the function prototype observers deprecation
DEPRECATION: Function prototype extensions have been deprecated, please migrate from function(){}.observes('foo') to observer('foo', function() {}). [deprecation id: function-prototype-extensions.observes] See https://deprecations.emberjs.com/v3.x/#toc_function-prototype-extensions-observes for more details.
* DEV: Fix the function prototype event listeners deprecation
DEPRECATION: Function prototype extensions have been deprecated, please migrate from function(){}.on('foo') to on('foo', function() {}). [deprecation id: function-prototype-extensions.on] See https://deprecations.emberjs.com/v3.x/#toc_function-prototype-extensions-on for more details.
* DEV: Simplify `default as` imports
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
* DEV: Add API to alter uploads Markdown
* DEV: Extract data attributes from image / download Markdown
For example '[test|attachment|hello=world]' will generate an 'a' element
with a data attribute: 'data-hello=world'.
This commit also makes MarkdownIt to transform '|attachment' into
'class="attachment"'. This transformation used to be a part of the
process which resolves short URLs (i.e. upload://).
* DEV: Export imageNameFromFileName
* DEV: Provide radix 10 argument to parseInt
* DEV: Provide radix 16 argument to parseInt
* DEV: Remove unnecessary parseInt calls
* Fix year formatting
parseInt was used here to convert decimals to ints
* FIX: move attachment_css_class constant out of upload-short-url for discourse-markdown-it
* Use setTimeout instead of ember later
* WIP. Not sure if this worked.
* oneboxer cache in separate file
* Reset onebox cache still
* set functions for oneboxers cache
- Client-side censoring fixed for non-chrome browsers. (Regular expression rewritten to avoid lookback)
- Regex generation is now done on the server, to reduce repeated logic, and make it easier to extend in plugins
- Censor tests are moved to ruby, to ensure everything works end-to-end
- If "watched words regular expressions" is enabled, warn the admin when the generated regex is invalid
FIX: buildTranslationTree was erroring when translations overlapped (ie. ":-)" and ":-))")
FIX: emoji translations wasn't working properly when translations overlapped
This allows fidelity in controlling excerpt (text that shows up when you pin a topic or link to it externally):
```
I am some text
[excerpt]
This is some **custom** markdown that should be the excerpt
[/excerpt]
More text
```
Previous solution relied on DIVs, unfortunately DIVs do not play well,
by design with mixing markdown unless you have a preceding newline eg:
```
<div class='hello'>
this will be treated properly as markdown
</div>
```
This extra newline is not desirable.
I am also considering adding
```
[div class=excerpt]
[/div]
```
This would offer lots of flexibility to themes and plugins that do not want the extra annoying newline.
Previously, the site setting was only effective on the client side of
things. Once the site setting was been reached, all oneboxes are not
rendered. This commit changes it such that the site setting is respected
both on the client and server side. The first N oneboxes are rendered and
once the limit has been reached, subsequent oneboxes will not be
rendered.
We were looking up each mention one by one without any form of caching and that results
in a problem somewhat similar to an N+1. When we have to do alot of DB
lookups, it also increased the time spent in the V8 context which may
eventually lead to a timeout. The change here makes it such that mention lookups only does a single
DB query per post that happens outside of the V8 context.
A previous shortcut used was not allowing for <abbr and other tags starting with a
If <abbr> appeared anywhere in the text all mentions would fail to link
