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12 changed files with 47 additions and 55 deletions

2
.gitignore vendored
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@ -2,6 +2,6 @@ node_modules
config.js
registration.yaml
coverage
ooye.db*
src/db/ooye.db*
test/res/*
!test/res/lottie*

1
addbot.js Executable file → Normal file
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@ -1,4 +1,3 @@
#!/usr/bin/env node
// @ts-check
const {reg} = require("./src/matrix/read-registration")

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@ -58,7 +58,6 @@
"supertape": "^10.4.0"
},
"scripts": {
"start": "node start.js",
"addbot": "node addbot.js",
"test": "cross-env FORCE_COLOR=true supertape --no-check-assertions-count --format tap test/test.js | tap-dot",
"test-slow": "cross-env FORCE_COLOR=true supertape --no-check-assertions-count --format tap --no-worker test/test.js -- --slow | tap-dot",

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@ -55,7 +55,7 @@ For more information about features, [see the user guide.](https://gitdab.com/ca
Using WeatherStack as a thin layer between the bridge application and the Discord API lets us control exactly what data is cached in memory. Only necessary information is cached. For example, member data, user data, message content, and past edits are never stored in memory. This keeps the memory usage low and also prevents it ballooning in size over the bridge's runtime.
The bridge uses a small SQLite database to store relationships like which Discord messages correspond to which Matrix messages. This is so the bridge knows what to edit when some message is edited on Discord. Using `without rowid` on the database tables stores the index and the data in the same B-tree. Since Matrix and Discord's internal IDs are quite long, this vastly reduces storage space because those IDs do not have to be stored twice separately. Some event IDs and URLs are actually stored as xxhash integers to reduce storage requirements even more. On my personal instance of OOYE, every 300,000 messages (representing a year of conversations) requires 47.3 MB of storage space in the SQLite database.
The bridge uses a small SQLite database to store relationships like which Discord messages correspond to which Matrix messages. This is so the bridge knows what to edit when some message is edited on Discord. Using `without rowid` on the database tables stores the index and the data in the same B-tree. Since Matrix and Discord's internal IDs are quite long, this vastly reduces storage space because those IDs do not have to be stored twice separately. Some event IDs are actually stored as xxhash integers to reduce storage requirements even more. On my personal instance of OOYE, every 100,000 messages require 16.1 MB of storage space in the SQLite database.
Only necessary data and columns are queried from the database. We only contact the homeserver API if the database doesn't contain what we need.
@ -83,7 +83,7 @@ Follow these steps:
1. Run `node scripts/seed.js` to check your setup and set the bot's initial state. It will prompt you for information. You only need to run this once ever.
1. Start the bridge: `npm run start`
1. Start the bridge: `node start.js`
1. Add the bot to a server - use any *one* of the following commands for an invite link:
* (in the REPL) `addbot`
@ -106,19 +106,18 @@ To get into the rooms on your Matrix account, either add yourself to `invite` in
## Repository structure
.
* Run this to start the bridge:
├── start.js
* Runtime configuration, like tokens and user info:
├── registration.yaml
* You are here! :)
├── readme.md
* The bridge's SQLite database is stored here:
├── ooye.db*
└── readme.md
* Source code
└── src
* Database schema:
* The bridge's SQLite database is stored here:
├── db
│   ├── orm.js, orm-defs.d.ts
│   ├── *.sql, *.db
│   * Migrations change the database schema when you update to a newer version of OOYE:
│   ├── migrate.js
│   └── migrations
│       └── *.sql, *.js
* Discord-to-Matrix bridging:

11
scripts/capture-message-update-events.js Executable file → Normal file
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@ -1,4 +1,3 @@
#!/usr/bin/env node
// @ts-check
// ****
@ -17,16 +16,16 @@ function fieldToPresenceValue(field) {
const sqlite = require("better-sqlite3")
const HeatSync = require("heatsync")
const {reg} = require("../src/matrix/read-registration")
const passthrough = require("../src/passthrough")
const config = require("../config")
const passthrough = require("../passthrough")
const sync = new HeatSync({watchFS: false})
Object.assign(passthrough, {sync})
Object.assign(passthrough, {config, sync})
const DiscordClient = require("../src/d2m/discord-client")
const DiscordClient = require("../d2m/discord-client")
const discord = new DiscordClient(reg.ooye.discord_token, "no")
const discord = new DiscordClient(config.discordToken, "no")
passthrough.discord = discord
;(async () => {

10
scripts/check-migrate.js Executable file → Normal file
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@ -1,4 +1,3 @@
#!/usr/bin/env node
// @ts-check
// Trigger the database migration flow and exit after committing.
@ -6,10 +5,11 @@
const sqlite = require("better-sqlite3")
const passthrough = require("../src/passthrough")
const db = new sqlite("ooye.db")
const migrate = require("../src/db/migrate")
const config = require("../config")
const passthrough = require("../passthrough")
const db = new sqlite("db/ooye.db")
const migrate = require("../db/migrate")
Object.assign(passthrough, {db})
Object.assign(passthrough, {config, db })
migrate.migrate(db)

22
scripts/migrate-from-old-bridge.js Executable file → Normal file
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@ -1,4 +1,3 @@
#!/usr/bin/env node
// @ts-check
const assert = require("assert").strict
@ -7,17 +6,18 @@ const Semaphore = require("@chriscdn/promise-semaphore")
const sqlite = require("better-sqlite3")
const HeatSync = require("heatsync")
const passthrough = require("../src/passthrough")
const config = require("../config")
const passthrough = require("../passthrough")
const sync = new HeatSync({watchFS: false})
const {reg} = require("../src/matrix/read-registration")
const {reg} = require("../matrix/read-registration")
assert(reg.old_bridge)
const oldAT = reg.old_bridge.as_token
const newAT = reg.as_token
const oldDB = new sqlite(reg.old_bridge.database)
const db = new sqlite("ooye.db")
const db = new sqlite("db/ooye.db")
db.exec(`CREATE TABLE IF NOT EXISTS half_shot_migration (
discord_channel TEXT NOT NULL,
@ -25,19 +25,19 @@ db.exec(`CREATE TABLE IF NOT EXISTS half_shot_migration (
PRIMARY KEY("discord_channel")
) WITHOUT ROWID;`)
Object.assign(passthrough, {sync, db})
Object.assign(passthrough, {config, sync, db})
const DiscordClient = require("../src/d2m/discord-client")
const discord = new DiscordClient(reg.ooye.discord_token, "half")
const DiscordClient = require("../d2m/discord-client")
const discord = new DiscordClient(config.discordToken, "half")
passthrough.discord = discord
/** @type {import("../src/d2m/actions/create-space")} */
/** @type {import("../d2m/actions/create-space")} */
const createSpace = sync.require("../d2m/actions/create-space")
/** @type {import("../src/d2m/actions/create-room")} */
/** @type {import("../d2m/actions/create-room")} */
const createRoom = sync.require("../d2m/actions/create-room")
/** @type {import("../src/matrix/mreq")} */
/** @type {import("../matrix/mreq")} */
const mreq = sync.require("../matrix/mreq")
/** @type {import("../src/matrix/api")} */
/** @type {import("../matrix/api")} */
const api = sync.require("../matrix/api")
const sema = new Semaphore()

13
scripts/save-channel-names-to-db.js Executable file → Normal file
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@ -1,20 +1,19 @@
#!/usr/bin/env node
// @ts-check
const sqlite = require("better-sqlite3")
const HeatSync = require("heatsync")
const {reg} = require("../src/matrix/read-registration")
const passthrough = require("../src/passthrough")
const db = new sqlite("ooye.db")
const config = require("../config")
const passthrough = require("../passthrough")
const db = new sqlite("db/ooye.db")
const sync = new HeatSync({watchFS: false})
Object.assign(passthrough, {sync, db})
Object.assign(passthrough, {config, sync, db})
const DiscordClient = require("../src/d2m/discord-client")
const DiscordClient = require("../d2m/discord-client")
const discord = new DiscordClient(reg.ooye.discord_token, "no")
const discord = new DiscordClient(config.discordToken, "no")
passthrough.discord = discord
;(async () => {

7
scripts/save-event-types-to-db.js Executable file → Normal file
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@ -1,17 +1,16 @@
#!/usr/bin/env node
// @ts-check
const sqlite = require("better-sqlite3")
const HeatSync = require("heatsync")
const passthrough = require("../src/passthrough")
const db = new sqlite("ooye.db")
const passthrough = require("../passthrough")
const db = new sqlite("db/ooye.db")
const sync = new HeatSync({watchFS: false})
Object.assign(passthrough, {sync, db})
const api = require("../src/matrix/api")
const api = require("../matrix/api")
/** @type {{event_id: string, room_id: string, event_type: string}[]} */ // @ts-ignore
const rows = db.prepare("SELECT event_id, room_id, event_type FROM event_message INNER JOIN message_channel USING (message_id) INNER JOIN channel_room USING (channel_id)").all()

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scripts/seed.js Executable file → Normal file
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@ -1,4 +1,3 @@
#!/usr/bin/env node
// @ts-check
const assert = require("assert").strict
@ -21,11 +20,11 @@ const args = require("minimist")(process.argv.slice(2), {string: ["emoji-guild"]
// Move database file if it's still in the old location
if (fs.existsSync("db")) {
if (fs.existsSync("db/ooye.db")) {
fs.renameSync("db/ooye.db", "ooye.db")
fs.renameSync("db/ooye.db", "src/db/ooye.db")
}
const files = fs.readdirSync("db")
if (files.length) {
console.error("The db folder is deprecated and must be removed. Your ooye.db database file has already been moved to the root of the repo. You must manually move or delete the remaining files:")
console.error("You must manually move or delete the files in the db folder:")
for (const file of files) {
console.error(file)
}
@ -34,13 +33,14 @@ if (fs.existsSync("db")) {
fs.rmSync("db", {recursive: true})
}
const config = require("../config")
const passthrough = require("../src/passthrough")
const db = new sqlite("ooye.db")
const db = new sqlite("src/db/ooye.db")
const migrate = require("../src/db/migrate")
const sync = new HeatSync({watchFS: false})
Object.assign(passthrough, {sync, db})
Object.assign(passthrough, { sync, config, db })
const orm = sync.require("../src/db/orm")
passthrough.from = orm.from
@ -225,7 +225,7 @@ async function validateHomeserverOrigin(serverUrlPrompt, url) {
assert(utils.eventSenderIsFromDiscord(mxid), "appservice's mxid must be in the namespace it controls")
assert(reg.ooye.server_origin.match(/^https?:\/\//), "server origin must start with http or https")
assert.notEqual(reg.ooye.server_origin.slice(-1), "/", "server origin must not end in slash")
const botID = Buffer.from(reg.ooye.discord_token.split(".")[0], "base64").toString()
const botID = Buffer.from(config.discordToken.split(".")[0], "base64").toString()
assert(botID.match(/^[0-9]{10,}$/), "discord token must follow the correct format")
assert.match(reg.url, /^https?:/, "url must start with http:// or https://")

3
scripts/wal.js Executable file → Normal file
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@ -1,7 +1,6 @@
#!/usr/bin/env node
// @ts-check
const sqlite = require("better-sqlite3")
const db = new sqlite("ooye.db", {fileMustExist: true})
const db = new sqlite("db/ooye.db", {fileMustExist: true})
db.pragma("journal_mode = wal")
db.close()

3
start.js Executable file → Normal file
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@ -1,4 +1,3 @@
#!/usr/bin/env node
// @ts-check
const sqlite = require("better-sqlite3")
@ -7,7 +6,7 @@ const HeatSync = require("heatsync")
const {reg} = require("./src/matrix/read-registration")
const passthrough = require("./src/passthrough")
const db = new sqlite("ooye.db")
const db = new sqlite("src/db/ooye.db")
/** @type {import("heatsync").default} */ // @ts-ignore
const sync = new HeatSync()