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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://mstdn.io/users/jomo/statuses/111616354111498918">jomo (jomo@mstdn.io)'s status on Thursday, 21-Dec-2023 13:09:09 JST</a><a href="https://mstdn.io/@jomo" title="jomo@mstdn.io"><img src="https://gnusocial.jp/avatar/10721-48-20220919201746.webp" width="48" height="48" alt="jomo" style="position: absolute; left: 0; top: 0;">jomo</a></section><article><p>TIL <a href="https://mstdn.io/tags/Discord" rel="tag">#Discord</a> effectively does traffic amplification when users post an image. They crawl the image URL using a Discordbot User-Agent, but in the same second request the same URL with a spoofed Mac OS browser User-Agent that can't be identified as a Discord request.</p><p>Both request are required for the image to render in Discord chat. Absolutely great!</p><p><a href="https://github.com/discord/discord-api-docs/issues/1600#issuecomment-628529359" rel="nofollow noreferrer">https://github.com/discord/discord-api-docs/issues/1600#issuecomment-628529359</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/2480566#notice-4908449">In conversation</a><time datetime="2023-12-21T13:09:09+09:00" title="Thursday, 21-Dec-2023 13:09:09 JST">Thursday, 21-Dec-2023 13:09:09 JST</time> <span>from <span><a href="https://mstdn.io/@jomo/111616354111498918" rel="external" title="Sent from mstdn.io via ActivityPub">mstdn.io</a></span></span><a href="https://mstdn.io/@jomo/111616354111498918">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/1996609">GitHub comment:This is an intentional design decision, and is working as intended. When Discord crawls a URL we perform that action as a bot. However, when we proxy images we are acting in response to a user loading that image. Because of this distinction we provide a user agent of a user, not a bot.(29 downvotes)</a></label><br><a href="https://media.mstdn.io/mstdn-media/media_attachments/files/111/616/351/111/297/387/original/df443431b24a746f.png" rel="external">https://media.mstdn.io/mstdn-media/media_attachments/files/111/616/351/111/297/387/original/df443431b24a746f.png</a></li></ol></footer></blockquote>

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jomo (jomo@mstdn.io)'s status on Thursday, 21-Dec-2023 13:09:09 JST jomo
TIL #Discord effectively does traffic amplification when users post an image. They crawl the image URL using a Discordbot User-Agent, but in the same second request the same URL with a spoofed Mac OS browser User-Agent that can't be identified as a Discord request.
Both request are required for the image to render in Discord chat. Absolutely great!
https://github.com/discord/discord-api-docs/issues/1600#issuecomment-628529359
In conversationThursday, 21-Dec-2023 13:09:09 JST from mstdn.iopermalink
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1. GitHub comment: This is an intentional design decision, and is working as intended. When Discord crawls a URL we perform that action as a bot. However, when we proxy images we are acting in response to a user loading that image. Because of this distinction we provide a user agent of a user, not a bot. (29 downvotes)
  https://media.mstdn.io/mstdn-media/media_attachments/files/111/616/351/111/297/387/original/df443431b24a746f.png

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