Elliu
d95a114377
When using self-service mode and trying to link with a remote matrix room (room not in the same HS as the bridge user), then we need to add the "via" HSs to join the room with, or else it fails. We get it from the "m.space.child" in the "children_state" of the space hierarchy. Co-authored-by: Cadence Ember <cadence@disroot.org> Reviewed-on: #60 Co-authored-by: Elliu <elliu@hashi.re> Co-committed-by: Elliu <elliu@hashi.re> |
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Out Of Your Element
Modern Matrix-to-Discord appservice bridge, created by @cadence:cadence.moe
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.