- JavaScript 96.7%
- Pug 3.3%
l1s5
c70597a665
This commit refactors various instances of mxid matching so that there is a single well-tested regex that can be reused everywhere. The new regex is made to match the specification word for word, and should hopefully rule out most over- and undermatching. By chance, this also fixes a bug in `src/discord/interactions/ping.js` where the autocomplete tried matching an mxid against a raw sql query rather than the provided input. |
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Out Of Your Element
Modern Matrix-to-Discord appservice bridge, created by @cadence:cadence.moe
AI policy
Out Of Your Element is 100% organically cultivated ethical hand-fed code. Let's work together to conserve that!
Why a new bridge?
- Modern: Supports new Discord features like replies, threads and stickers, and new Matrix features like edits, spaces and space membership.
- Efficient: Special attention has been given to memory usage, database indexes, disk footprint, runtime algorithms, and queries to the homeserver. Efficiency details.
- Reliable: Any errors on either side are notified on Matrix and can be retried. Messages sent during bridge downtime will still be bridged after it comes back up.
- Tested: A test suite and code coverage make sure all the logic and special cases work.
- Simple development: No build step (it's JavaScript, not TypeScript), minimal/lightweight dependencies, and abstraction only where necessary so that less background knowledge is required. No need to learn about Intents or library functions.
- No locking algorithm: Other bridges use a locking algorithm which is a source of frequent bugs. This bridge avoids the need for one.
- Latest API: Being on the latest Discord API version lets it access all features, without the risk of deprecated API versions being removed.
What works?
Most features you'd expect in both directions: messages, edits, deletions, formatting (including spoilers), reactions, custom emojis, custom emoji reactions, mentions, channel mentions, replies, threads, stickers (all formats: PNG, APNG, GIF, Lottie), attachments, spoiler attachments (compatible with most clients), embeds, URL previews, presence, discord.com hyperlinks, and more.
Metadata is also synced: people's names, avatars, usernames; channel names, icons, topics; spaces containing rooms; custom emoji lists. Syncing Matrix rooms, room icons, and topics is optional: you can keep them different from the Discord ones if you prefer.
I've also added some interesting features that I haven't seen in any other bridge:
- Members using the PluralKit bot each get their own persistent accounts
- Replies from PluralKit members are restyled into native Matrix replies
- Simulated user accounts are named @the_persons_username rather than @112233445566778899
- Matrix custom emojis from private rooms are still visible on Discord as a sprite sheet
- To save space, larger files from Discord are linked instead of reuploaded to Matrix (links don't expire)
For more information about features, see the user guide.
Caveats
- This bridge is not designed for puppetting.
- Direct Messaging is not supported until I figure out a good way of doing it.
- Encrypted messages are not supported. Decryption is often unreliable on Matrix, and your messages end up in plaintext on Discord anyway, so there's not much advantage.