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Fix #5360: Use OpenGraph's og:image metadata for posts.

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* Add og:image:width, og:image:height, and og:image:type tags.
* Use og:video tags for videos.
* Use 720x720 instead of 150x150 preview images for videos.
* Add duration tag to JSON-LD data for videos.
* Add OpenGraph tags to media assets show page.
* Respect Twitter max image size limits.
* Don't include OpenGraph image tags when someone shares a plain https://danbooru.donmai.us link
  with no tag search. This caused random potentially NSFW images to be shown when someone shared a
  https://danbooru.donmai.us link on social media, which could be cached for long periods of time.
This commit is contained in:
evazion
2022-12-02 00:59:23 -06:00
parent ca0a4af455
commit e11cd288b9
7 changed files with 100 additions and 50 deletions
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23
app/components/open_graph_component/open_graph_component.html.erb Normal file
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<% if policy(media_asset).can_see_image? %>
<% if is_image? %>
<%= tag.meta property: "og:image", content: image_url %>
<%= tag.meta property: "og:image:secure_url", content: image_url %>
<%= tag.meta property: "og:image:width", content: image_width %>
<%= tag.meta property: "og:image:height", content: image_height %>
<%= tag.meta property: "og:image:type", content: mime_type %>
<% elsif is_video? || is_ugoira? %>
<%= tag.meta property: "og:image", content: image_url %>
<%= tag.meta property: "og:video", content: video_url %>
<%= tag.meta property: "og:video:secure_url", content: video_url %>
<%= tag.meta property: "og:video:width", content: image_width %>
<%= tag.meta property: "og:video:height", content: image_height %>
<%= tag.meta property: "og:video:type", content: mime_type %>
<%= json_ld_video_data %>
<% end %>
<% if twitter_image_url.present? %>
<%= tag.meta name: "twitter:card", content: "summary_large_image" %>
<%= tag.meta name: "twitter:image", content: twitter_image_url %>
<% end %>
<% end %>