In 95a82d608d, we lowered the default for
`Onebox.options.max_download_kb` from 10mb to 2mb for security hardening
purposes. However, this resulted in multiple bug reports where seemingly
nomral URLs stopped being oneboxed. It turns out that lowering
`Onebox.options.max_download_kb` resulted in `Onebox::Helpers::DownloadTooLarge` being raised
more often for more URLs in `Onebox::Helpers.fetch_response` which
`Onebox::Helpers.fetch_html_doc` relies on. When
`Onebox::Helpers::DownloadTooLarge` is raised in
`Onebox::Helpers.fetch_response`, we throw away whatever response body
which we have already downloaded at that point. This is not ideal
because Nokogiri can parse incomplete HTML documents and there is a
really high chance that the incomplete HTML document still contains the
information which we need for oneboxing.
Therefore, this commit updates `Onebox::Helpers.fetch_html_doc` to not
throw away the response body when the size of the response body exceeds
`Onebox.options.max_download_size`. Instead, we just take whatever
response which we have and get Nokogiri to parse it.
We have a custom implementation of #symbolize_keys in our Onebox helpers. This is likely a legacy from when Onebox was a standalone gem. This change replaces all usages with either #deep_symbolize_keys from ActiveSupport, or appropriate option to the JSON parser gem used.
We have a custom implementation of #blank? in our Onebox helpers. This is likely a legacy from when Onebox was a standalone gem. This change replaces all usages with respective incarnations of #blank?, #present?, and #presence from ActiveSupport. It changes a bunch of "unless blank" to "if present" as well.
This adds support for oneboxing WEBP and AVIF images in posts and fixing
oneboxing fixes download remote images for those formats too.
Reported in https://meta.discourse.org/t/-/276433?u=falco
Prior to this fix we would output an image with no width/height which would then bypass a large part of `CookedProcessorMixin` and have no aspect ratio. As a result, an image with no size would cause layout shift.
It also removes a fix for oneboxes in chat messages due to this case.
Embed Motoko service's primary URL is transiting from embed.smartcontracts.org to embed.motoko.org, this PR updates the Onebox logic to work for either domain.
Wikimedia provides a thumbnail url for its images, so we should use that
for oneboxes instead of the full-size image. Because the size of the
onebox image we display is quite small anyways the thumbnail wikimedia
provides should suffice and will save bandwidth.
See: https://meta.discourse.org/t/264039
Sometimes we get Maps URL containing a zoom level as a float (17.5z and
not 17z) but this doesn’t work with our current onebox implementation.
While Google accepts those float zoom levels, it removes automatically
the floating part in the URL (thus when visiting a Maps URL containing
17.5z, the URL will be rewritten shortly after as 17z). When putting a
float zoom level in an embedded URL, this actually breaks (Maps API
returns a 400 error).
This patch addresses the issue by allowing the onebox engine to match on
a zoom level expressed as a float but we only keep the integer part thus
rendering properly maps.
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.
Linking a commit from a GitHub pull request included the complete commit
message, instead of just the first line. The rest of the commit message
will be added to the body of the Onebox.
The order in which Onebox engines are loaded is not guaranteed. Occasionally during tests, the twitter engine would be loaded before the instagram engine, and cause the Instagram Onebox spec to fail due to the lack of `Onebox.options.twitter_client`.
This commit makes the load order of Onebox engines consistent, and fixes the issue in the twitter_status_onebox.
Twitter removed OpenGraph tags from their pages. We can no longer
extract all the information (for example, the quoted tweet) we need
to render Oneboxes without using their API.
- Sets `https://www.mixcloud.com` as a `requires_iframe_origins` to allow the iframe content to be displayed
- Attempts to render something approximating the Mixcloud content in the preview pane of the Composer, rather than just displaying a large version of the artwork associated with the link
