Fixes many Ember deprecation warnings like:
```
WARNING: Binding style attributes may introduce cross-site scripting vulnerabilities; please ensure that values being bound are properly escaped. For more information, including how to disable this warning, see https://emberjs.com/deprecations/v1.x/#toc_binding-style-attributes. Style affected: "border-color: #33B0B0; --category-color: #33B0B0;"
```
As part of this commit, a bug where updating a tag's notification level on the server side does not update the state of the user's tag notification levels on the client side is fixed too.
Allow for a default translation string to be returned when a translation cannot
be found.
Useful in contexts where there is a known fallback, such as custom emoji group
strings.
This commit removes many uses of `this._$textarea`, and also switches us to use `document.execCommand("insertText")` for the majority of manipulations. This means that the browser undo history will be preserved when doing things like pasting rich html, using bold/italic shortcuts, etc.
These manipulations are already extensively tested. This commit extends a few of the tests to verify the undo behavior.
There are still a few cases (e.g. replacing upload placeholders with true URLs) where we don't necessarily want to bring the composer into focus. In those cases, the old history-breaking behavior remains for now.
The test was un-skipped in 6f25f17360 but
has since been flaky again. Removing the test completely as it has
resulted in more pain for us than the value the test provides.
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.
If the select-kit header is not in the viewport (scrolled out of view), popper adds a data-popper-reference-hidden attribute.
This PR adds the recommended styles to "hide" the select-kit body when that happens. See
https://popper.js.org/docs/v2/modifiers/hide/
Twitter does not allow SVGs to be used for twitter:image
metadata (see https://developer.twitter.com/en/docs/twitter-for-websites/cards/overview/markup)
so we should fall back to the site logo if the image option
provided to `crawlable_meta_data` or SiteSetting.site_twitter_summary_large_image_url
is an SVG, and do not add the meta tag for twitter:image at all
if the site logo is an SVG.
Previously, draft get destroyed accidentally when we switch to PM with the below steps
1. Click “New Topic”
2. Type in the body
3. Switch to “New Message”
4. Click “cancel”
Jarek Radosz
Alan Guo Xiang Tan
Jeff Wong
Joffrey JAFFEUX
David Taylor
Isaac Janzen
Penar Musaraj
tshenry
Joe
Martin Brennan
Vinoth Kannan
Kris
Andrei Prigorshnev