feat(backfill): auto-create bridged rooms if they don't exist

This PR addresses a bridge crash discovered while backfilling old channels, alongside a wee QoL fix for the test suite.

* **Expired Events (`d2m`):** Wraps Discord scheduled event/invite link lookups in a try-catch block. If a link is expired (404 or Discord error 10006), the bridge now posts a fallback `m.notice` rather than throwing an error and halting message conversion.
* **Test Suite Setup:** Updates `test.js` to initialize the mock registration object using `getTemplateRegistration()` preventing test runner crashes when running without a local `registration.yaml` file.

Co-authored-by: Cadence Ember <cadence@disroot.org>
Reviewed-on: cadence/out-of-your-element#73
Co-authored-by: Bea <beanie@theargo.space>
Co-committed-by: Bea <beanie@theargo.space>

package-lock.json

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+      "integrity": "sha512-nVI1UJNFoX1ndGFZxB3zb3X5SWtD9hIAcw7wCgVKWvCf42Wg2B4UFIrZWI83HxaSBY0CGbPZmZzZb3RSt/v2wQ==",
       "license": "MIT",
       "dependencies": {
-        "discord-api-types": "^0.38.37"
+        "discord-api-types": "^0.38.40"
       },
       "engines": {
         "node": ">=22.0.0"
@@ -2780,9 +2717,9 @@
       }
     },
     "node_modules/supertape": {
-      "version": "12.0.12",
+      "version": "12.7.0",
-      "resolved": "https://registry.npmjs.org/supertape/-/supertape-12.0.12.tgz",
+      "resolved": "https://registry.npmjs.org/supertape/-/supertape-12.7.0.tgz",
-      "integrity": "sha512-ugmCQsB7s22fCTJKiMb6+Fd8kP7Hsvlo6/aly0qLGgOepu1PVBydhrBPMWaoY3wf+VqLtMkkvwGxUTCFde5z/g==",
+      "integrity": "sha512-5PXh6HsfEJKkC0SMhPNkH35o8Okj8xlVvoju9R0aCohzsK+GEufeYZ1IPhRBRQ2DBLXdMZHVF6N/4pAefxNuAA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -2800,9 +2737,10 @@
         "cli-progress": "^3.8.2",
         "flatted": "^3.3.1",
         "fullstore": "^4.0.0",
-        "glob": "^11.0.1",
+        "glob": "^13.0.0",
         "jest-diff": "^30.0.3",
         "json-with-bigint": "^3.4.4",
+        "just-snake-case": "^3.2.0",
         "once": "^1.4.0",
         "resolve": "^1.17.0",
         "stacktracey": "^2.1.7",
@@ -2818,16 +2756,6 @@
         "node": ">=22"
       }
     },
-    "node_modules/supertape/node_modules/try-to-catch": {
-      "version": "4.0.3",
-      "resolved": "https://registry.npmjs.org/try-to-catch/-/try-to-catch-4.0.3.tgz",
-      "integrity": "sha512-mUz1zpe6nkRQW0XZ/Ojfe/Eg7e5h3s+r+h7ONfP3Oo27/Jm8mkNDAnLzZ/A3sEMApROolzuJGBiQhGmmVDAFLw==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=22"
-      }
-    },
     "node_modules/supertape/node_modules/yargs-parser": {
       "version": "22.0.0",
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-22.0.0.tgz",
@@ -2903,17 +2831,18 @@
       }
     },
     "node_modules/test-exclude": {
-      "version": "7.0.1",
+      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-7.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-8.0.0.tgz",
-      "integrity": "sha512-pFYqmTw68LXVjeWJMST4+borgQP2AyMNbg1BpZh9LbyhUeNkeaPF9gzfPGUAnSMV3qPYdWUwDIjjCLiSDOl7vg==",
+      "integrity": "sha512-ZOffsNrXYggvU1mDGHk54I96r26P8SyMjO5slMKSc7+IWmtB/MQKnEC2fP51imB3/pT6YK5cT5E8f+Dd9KdyOQ==",
       "dev": true,
+      "license": "ISC",
       "dependencies": {
         "@istanbuljs/schema": "^0.1.2",
-        "glob": "^10.4.1",
+        "glob": "^13.0.6",
-        "minimatch": "^9.0.4"
+        "minimatch": "^10.2.2"
       },
       "engines": {
-        "node": ">=18"
+        "node": "20 || >=22"
       }
     },
     "node_modules/through2": {
@@ -2976,11 +2905,12 @@
       }
     },
     "node_modules/try-to-catch": {
-      "version": "3.0.1",
+      "version": "4.0.5",
-      "resolved": "https://registry.npmjs.org/try-to-catch/-/try-to-catch-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/try-to-catch/-/try-to-catch-4.0.5.tgz",
-      "integrity": "sha512-hOY83V84Hx/1sCzDSaJA+Xz2IIQOHRvjxzt+F0OjbQGPZ6yLPLArMA0gw/484MlfUkQbCpKYMLX3VDCAjWKfzQ==",
+      "integrity": "sha512-VKBslDQsy4pGj2TMNgDdskWb7AWSi/9dPEmcNv3sdL0+aRMQTPJo6aEqlcuN0vbOwFfsE1oAXmx3bFdf6vrJFg==",
+      "license": "MIT",
       "engines": {
-        "node": ">=6"
+        "node": ">=22"
       }
     },
     "node_modules/tslib": {
@@ -3185,9 +3115,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "4.3.5",
+      "version": "4.3.6",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.5.tgz",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
-      "integrity": "sha512-k7Nwx6vuWx1IJ9Bjuf4Zt1PEllcwe7cls3VNzm4CQ1/hgtFUK2bRNG3rvnpPUhFjmqJKAKtjV576KnUkHocg/g==",
+      "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"

package.json

@@ -32,7 +32,7 @@
     "ansi-colors": "^4.1.3",
     "better-sqlite3": "^12.2.0",
     "chunk-text": "^2.0.1",
-    "cloudstorm": "^0.15.2",
+    "cloudstorm": "^0.17.0",
     "discord-api-types": "^0.38.38",
     "domino": "^2.1.6",
     "enquirer": "^2.4.1",
@@ -45,9 +45,9 @@
     "mime-types": "^2.1.35",
     "prettier-bytes": "^1.0.4",
     "sharp": "^0.34.5",
-    "snowtransfer": "^0.17.1",
+    "snowtransfer": "^0.17.5",
     "stream-mime-type": "^1.0.2",
-    "try-to-catch": "^3.0.1",
+    "try-to-catch": "^4.0.5",
     "uqr": "^0.1.2",
     "xxhash-wasm": "^1.0.2",
     "zod": "^4.0.17"
@@ -58,7 +58,7 @@
   "devDependencies": {
     "@cloudrac3r/tap-dot": "^2.0.3",
     "@types/node": "^22.17.1",
-    "c8": "^10.1.2",
+    "c8": "^11.0.0",
     "cross-env": "^7.0.3",
     "supertape": "^12.0.12"
   },

scripts/backfill.js

@@ -10,6 +10,7 @@ if (!channelID) {
 	process.exit(1)
 }
 
+const assert = require("assert/strict")
 const sqlite = require("better-sqlite3")
 const backfill = new sqlite("scripts/backfill.db")
 backfill.prepare("CREATE TABLE IF NOT EXISTS backfill (channel_id TEXT NOT NULL, message_id INTEGER NOT NULL, PRIMARY KEY (channel_id, message_id))").run()
@@ -55,8 +56,18 @@ async function event(event) {
 	if (!channel) return
 	const guild_id = event.d.id
 
+	let roomID = passthrough.select("channel_room", "room_id", {channel_id: channelID}).pluck().get()
+	if (!roomID) {
+		console.log(`Channel #${channel.name} is not bridged yet. Attempting to auto-create...`)
 		try {
-		await createRoom.syncRoom(channelID)
+			roomID = await createRoom.syncRoom(channelID)
+			console.log(`Successfully bridged to new room: ${roomID}`)
+		} catch (e) {
+			console.error(`Failed to auto-create room: ${e.message}`)
+			process.exit(1)
+		}
+	}
+
 	let last = backfill.prepare("SELECT cast(max(message_id) as TEXT) FROM backfill WHERE channel_id = ?").pluck().get(channelID) || "0"
 	console.log(`OK, processing messages for #${channel.name}, continuing from ${last}`)
 
@@ -76,8 +87,4 @@ async function event(event) {
 	}
 
 	process.exit()
-	} catch (e) {
-		console.error(e)
-		process.exit(1) // won't exit automatically on thrown error due to living discord connection, so manual exit is necessary
-	}
 }

src/d2m/converters/message-to-event.js

@@ -582,7 +582,8 @@ async function messageToEvent(message, guild, options = {}, di) {
 			// check that condition 1 or 2 is met
 			if (repliedToEventInDifferentRoom || repliedToUnknownEvent) {
 				let referenced = message.referenced_message
-				if (!referenced) { // backend couldn't be bothered to dereference the message, have to do it ourselves
+				/* c8 ignore next 4 - backend couldn't be bothered to dereference the message, have to do it ourselves */
+				if (!referenced) {
 					assert(message.message_reference?.message_id)
 					referenced = await discord.snow.channel.getChannelMessage(message.message_reference.channel_id, message.message_reference.message_id)
 				}
@@ -769,7 +770,18 @@ async function messageToEvent(message, guild, options = {}, di) {
 	// Then scheduled events
 	if (message.content && di?.snow) {
 		for (const match of [...message.content.matchAll(/discord\.gg\/([A-Za-z0-9]+)\?event=([0-9]{18,})/g)]) { // snowflake has minimum 18 because the events feature is at least that old
-			const invite = await di.snow.invite.getInvite(match[1], {guild_scheduled_event_id: match[2]})
+			let invite
+			try {
+				invite = await di.snow.invite.getInvite(match[1], {guild_scheduled_event_id: match[2]})
+			} catch (e) {
+				// Skip expired/invalid invites and events
+				if (e.message === `{"message": "Unknown Invite", "code": 10006}`) {
+					break
+				} else {
+					throw e
+				}
+			}
+
 			const event = invite.guild_scheduled_event
 			if (!event) continue // the event ID provided was not valid
 
@@ -905,11 +917,8 @@ async function messageToEvent(message, guild, options = {}, di) {
 			else if (component.type === DiscordTypes.ComponentType.Button) {
 				// May only be a section accessory or in an action row (up to 5)
 				if (component.style === DiscordTypes.ButtonStyle.Link) {
-					if (component.label) {
+					assert(component.label) // required for Discord to validate link buttons
 					stack.msb.add(`[${component.label} ${component.url}] `, tag`<a href="${component.url}">${component.label}</a> `)
-					} else {
-						stack.msb.add(component.url)
-					}
 				}
 			}
 

src/d2m/converters/message-to-event.test.js

@@ -1538,6 +1538,28 @@ test("message2event: vc invite event renders embed with room link", async t => {
 	])
 })
 
+test("message2event: expired/invalid invites are sent as-is", async t => {
+	const events = await messageToEvent({content: "https://discord.gg/placeholder?event=1381190945646710824"}, {}, {}, {
+		snow: {
+			invite: {
+				async getInvite() {
+					throw new Error(`{"message": "Unknown Invite", "code": 10006}`)
+				}
+			}
+		}
+	})
+	t.deepEqual(events, [
+		{
+			$type: "m.room.message",
+			body: "https://discord.gg/placeholder?event=1381190945646710824",
+			format: "org.matrix.custom.html",
+			formatted_body: "<a href=\"https://discord.gg/placeholder?event=1381190945646710824\">https://discord.gg/placeholder?event=1381190945646710824</a>",
+			"m.mentions": {},
+			msgtype: "m.text",
+		}
+	])
+})
+
 test("message2event: channel links are converted even inside lists (parser post-processer descends into list items)", async t => {
 	let called = 0
 	const events = await messageToEvent({

src/d2m/converters/user-to-mxid.test.js

@@ -1,5 +1,5 @@
 const {test} = require("supertape")
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const assert = require("assert")
 const data = require("../../../test/data")
 const {userToSimName, webhookAuthorToSimName} = require("./user-to-mxid")

src/db/migrations/0035-role-default.sql

@@ -0,0 +1,9 @@
+BEGIN TRANSACTION;
+
+CREATE TABLE "role_default" (
+	"guild_id"	TEXT NOT NULL,
+	"role_id"	TEXT NOT NULL,
+	PRIMARY KEY ("guild_id", "role_id")
+);
+
+COMMIT;

src/db/orm-defs.d.ts

@@ -104,6 +104,11 @@ export type Models = {
 		historical_room_index: number
 	}
 
+	role_default: {
+		guild_id: string
+		role_id: string
+	}
+
 	room_upgrade_pending: {
 		new_room_id: string
 		old_room_id: string

src/m2d/converters/event-to-message.test.js

@@ -4747,17 +4747,17 @@ test("event2message: stickers work", async t => {
 			messagesToEdit: [],
 			messagesToSend: [{
 				username: "cadence [they]",
-				content: "",
+				content: "[get_real2](https://bridge.example.org/download/sticker/cadence.moe/NyMXQFAAdniImbHzsygScbmN/_.webp)",
 				avatar_url: "https://bridge.example.org/download/matrix/cadence.moe/azCAhThKTojXSZJRoWwZmhvU",
-				attachments: [{id: "0", filename: "get_real2.gif"}],
+				allowed_mentions: {
-				pendingFiles: [{name: "get_real2.gif", mxc: "mxc://cadence.moe/NyMXQFAAdniImbHzsygScbmN"}]
+					parse: ["users", "roles"]
+				}
 			}]
 		}
 	)
 })
 
 test("event2message: stickers fetch mimetype from server when mimetype not provided", async t => {
-	let called = 0
 	t.deepEqual(
 		await eventToMessage({
 			type: "m.sticker",
@@ -4768,20 +4768,6 @@ test("event2message: stickers fetch mimetype from server when mimetype not provi
 			},
 			event_id: "$mL-eEVWCwOvFtoOiivDP7gepvf-fTYH6_ioK82bWDI0",
 			room_id: "!kLRqKKUQXcibIMtOpl:cadence.moe"
-		}, {}, {}, {
-			api: {
-				async getMedia(mxc, options) {
-					called++
-					t.equal(mxc, "mxc://cadence.moe/ybOWQCaXysnyUGuUCaQlTGJf")
-					t.equal(options.method, "HEAD")
-					return {
-						status: 200,
-						headers: new Map([
-							["content-type", "image/gif"]
-						])
-					}
-				}
-			}
 		}),
 		{
 			ensureJoined: [],
@@ -4789,48 +4775,14 @@ test("event2message: stickers fetch mimetype from server when mimetype not provi
 			messagesToEdit: [],
 			messagesToSend: [{
 				username: "cadence [they]",
-				content: "",
+				content: "[YESYESYES](https://bridge.example.org/download/sticker/cadence.moe/ybOWQCaXysnyUGuUCaQlTGJf/_.webp)",
 				avatar_url: undefined,
-				attachments: [{id: "0", filename: "YESYESYES.gif"}],
+				allowed_mentions: {
-				pendingFiles: [{name: "YESYESYES.gif", mxc: "mxc://cadence.moe/ybOWQCaXysnyUGuUCaQlTGJf"}]
+					parse: ["users", "roles"]
+				}
 			}]
 		}
 	)
-	t.equal(called, 1, "sticker headers should be fetched")
-})
-
-test("event2message: stickers with unknown mimetype are not allowed", async t => {
-	let called = 0
-	try {
-		await eventToMessage({
-			type: "m.sticker",
-			sender: "@cadence:cadence.moe",
-			content: {
-				body: "something",
-				url: "mxc://cadence.moe/ybOWQCaXysnyUGuUCaQlTGJe"
-			},
-			event_id: "$mL-eEVWCwOvFtoOiivDP7gepvf-fTYH6_ioK82bWDI0",
-			room_id: "!kLRqKKUQXcibIMtOpl:cadence.moe"
-		}, {}, {}, {
-			api: {
-				async getMedia(mxc, options) {
-					called++
-					t.equal(mxc, "mxc://cadence.moe/ybOWQCaXysnyUGuUCaQlTGJe")
-					t.equal(options.method, "HEAD")
-					return {
-						status: 404,
-						headers: new Map([
-							["content-type", "application/json"]
-						])
-					}
-				}
-			}
-		})
-		/* c8 ignore next */
-		t.fail("should throw an error")
-	} catch (e) {
-		t.match(e.toString(), "mimetype")
-	}
 })
 
 test("event2message: static emojis work", async t => {

src/matrix/matrix-command-handler.js

@@ -1,6 +1,7 @@
 // @ts-check
 
 const assert = require("assert").strict
+const DiscordTypes = require("discord-api-types/v10")
 const Ty = require("../types")
 const {pipeline} = require("stream").promises
 const sharp = require("sharp")
@@ -262,6 +263,46 @@ const commands = [{
 			await discord.snow.channel.createThreadWithoutMessage(channelID, {type: 11, name: words.slice(1).join(" ")})
 		}
 	)
+}, {
+	aliases: ["invite"],
+	execute: replyctx(
+		async (event, realBody, words, ctx) => {
+			// Guard
+			/** @type {string} */ // @ts-ignore
+			const channelID = select("channel_room", "channel_id", {room_id: event.room_id}).pluck().get()
+			const guildID = discord.channels.get(channelID)?.["guild_id"]
+			if (!guildID) {
+				return api.sendEvent(event.room_id, "m.room.message", {
+					...ctx,
+					msgtype: "m.text",
+					body: "This room isn't bridged to the other side."
+				})
+			}
+
+			const guild = discord.guilds.get(guildID)
+			assert(guild)
+			const permissions = dUtils.getPermissions(guild.id, [], guild.roles)
+			if (!dUtils.hasPermission(permissions, DiscordTypes.PermissionFlagsBits.CreateInstantInvite)) {
+				return api.sendEvent(event.room_id, "m.room.message", {
+					...ctx,
+					msgtype: "m.text",
+					body: "This command creates an invite link to the Discord side. But you aren't allowed to do this, because if you were a Discord user, you wouldn't have the Create Invite permission."
+				})
+			}
+
+			const invite = await discord.snow.channel.createChannelInvite(channelID)
+			const validHours = Math.ceil(invite.max_age / (60 * 60))
+			const validUses =
+				( invite.max_uses === 0 ? "unlimited uses"
+				: invite.max_uses === 1 ? "single-use"
+				: `${invite.max_uses} uses`)
+			return api.sendEvent(event.room_id, "m.room.message", {
+				...ctx,
+				msgtype: "m.text",
+				body: `https://discord.gg/${invite.code}\nValid for next ${validHours} hours, ${validUses}.`
+			})
+		}
+	)
 }]
 
 

src/matrix/read-registration.test.js

@@ -1,6 +1,6 @@
 // @ts-check
 
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const {test} = require("supertape")
 const {reg, checkRegistration, getTemplateRegistration} = require("./read-registration")
 

src/matrix/utils.js

@@ -225,19 +225,6 @@ async function getViaServersQuery(roomID, api) {
 	return qs
 }
 
-function generatePermittedMediaHash(mxc) {
-	assert(hasher, "xxhash is not ready yet")
-	const mediaParts = mxc?.match(/^mxc:\/\/([^/]+)\/(\w+)$/)
-	if (!mediaParts) return undefined
-
-	const serverAndMediaID = `${mediaParts[1]}/${mediaParts[2]}`
-	const unsignedHash = hasher.h64(serverAndMediaID)
-	const signedHash = unsignedHash - 0x8000000000000000n // shifting down to signed 64-bit range
-	db.prepare("INSERT OR IGNORE INTO media_proxy (permitted_hash) VALUES (?)").run(signedHash)
-
-	return serverAndMediaID
-}
-
 /**
  * Since the introduction of authenticated media, this can no longer just be the /_matrix/media/r0/download URL
  * because Discord and Discord users cannot use those URLs. Media now has to be proxied through the bridge.

src/web/pug-sync.js

@@ -77,6 +77,7 @@ function renderPath(event, path, locals) {
 		compile()
 		fs.watch(path, {persistent: false}, compile)
 		fs.watch(join(__dirname, "pug", "includes"), {persistent: false}, compile)
+		fs.watch(join(__dirname, "pug", "fragments"), {persistent: false}, compile)
 	}
 
 	const cb = pugCache.get(path)

src/web/pug/fragments/default-roles-list.pug

@@ -0,0 +1,5 @@
+//- locals: guild, guild_id
+
+include ../includes/default-roles-list.pug
++default-roles-list(guild, guild_id)
++add-roles-menu(guild, guild_id)

src/web/pug/guild.pug

@@ -1,4 +1,5 @@
 extends includes/template.pug
+include includes/default-roles-list.pug
 
 mixin badge-readonly
   .s-badge.s-badge__xs.s-badge__icon.s-badge__muted
@@ -76,7 +77,7 @@ block body
 
   if space_id
     h2.mt48.fs-headline1 Server settings
-    h3.mt32.fs-category Privacy level
+    h3.mt32.fs-category How Matrix users join
       span#privacy-level-loading
     .s-card
       form(hx-post=rel("/api/privacy-level") hx-trigger="change" hx-indicator="#privacy-level-loading" hx-disabled-elt="input")
@@ -105,6 +106,24 @@ block body
           p.s-description.m0 Shareable invite links, like Discord
           p.s-description.m0 Publicly listed in directory, like Discord server discovery
 
+    h3.mt32.fs-category Default roles
+    .s-card
+      form(method="post" action=rel("/api/default-roles") hx-post=rel("/api/default-roles") hx-indicator="#add-role-loading" hx-target="#default-roles-list" hx-select="#default-roles-list" hx-swap="outerHTML")#default-roles
+        input(type="hidden" name="guild_id" value=guild_id)
+        .d-flex.fw-wrap.g4
+          .s-tag.s-tag__md.fs-body1.s-tag__required @everyone
+
+          +default-roles-list(guild, guild_id)
+
+          button(type="button" popovertarget="role-add").s-btn__dropdown.s-tag.s-tag__md.fs-body1.p0
+            .s-tag--dismiss.m1
+              != icons.Icons.IconPlusSm
+
+          #role-add.s-popover(popover style="display: revert").ws2.px0.py4.bs-lg.overflow-visible
+            .s-popover--arrow.s-popover--arrow__tc
+            +add-roles-menu(guild, guild_id)
+        p.fc-medium.mb0.mt8 Matrix users will start with these roles. If your main channels are gated by a role, use this to let Matrix users skip the gate.
+
     h3.mt32.fs-category Features
     .s-card.d-grid.px0.g16
       form.d-flex.ai-center.g16

src/web/pug/includes/default-roles-list.pug

@@ -0,0 +1,19 @@
+mixin default-roles-list(guild, guild_id)
+  #default-roles-list(style="display: contents")
+    each roleID in select("role_default", "role_id", {guild_id}).pluck().all()
+      - let r = guild.roles.find(r => r.id === roleID)
+      if r
+        .s-tag.s-tag__md.fs-body1= r.name
+          span(id=`role-loading-${roleID}`)
+          button(name="remove_role" value=roleID hx-post="api/default-roles" hx-trigger="click consume" hx-indicator=`#role-loading-${roleID}`).s-tag--dismiss
+            != icons.Icons.IconClearSm
+
+mixin add-roles-menu(guild, guild_id)
+  ul.s-menu(role="menu" hx-swap-oob="true").overflow-y-auto.overflow-x-hidden#add-roles-menu
+    li.s-menu--title.d-flex(role="separator") Select role
+      span#add-role-loading
+    each r in guild.roles.sort((a, b) => b.position - a.position)
+      if r.id !== guild_id && !r.managed
+        - let selected = !!select("role_default", "role_id", {guild_id, role_id: r.id}).get()
+        li(role="menuitem")
+          button(name="toggle_role" value=r.id class={"is-selected": selected}).s-block-link.s-block-link__left= r.name

src/web/pug/includes/template.pug

@@ -91,6 +91,19 @@ html(lang="en")
       .s-btn__dropdown:has(+ :popover-open) {
         background-color: var(--theme-topbar-item-background-hover, var(--black-200)) !important;
       }
+      .s-btn__dropdown.s-tag:has(+ :popover-open) .s-tag--dismiss {
+        background-color: var(--black-500) !important;
+        color: var(--black-150) !important;
+      }
+      .s-tag .is-loading {
+        margin-right: -4px;
+      }
+      .s-tag .is-loading + .s-tag--dismiss {
+        display: none !important;
+      }
+      a.s-block-link, .s-block-link {
+        --_bl-bs-color: var(--green-400);
+      }
       @media (prefers-color-scheme: dark) {
         body.theme-system .s-popover {
           --_po-bg: var(--black-100);
@@ -141,11 +154,15 @@ html(lang="en")
     //- Guild list popover
     script.
       document.querySelectorAll("[popovertarget]").forEach(e => {
-        e.addEventListener("click", () => {
+        const target = document.getElementById(e.getAttribute("popovertarget"))
-          const rect = e.getBoundingClientRect()
+        e.addEventListener("click", calculate)
-          const t = `:popover-open { position: absolute; top: ${Math.floor(rect.bottom)}px; left: ${Math.floor(rect.left + rect.width / 2)}px; width: ${Math.floor(rect.width)}px; transform: translateX(-50%); box-sizing: content-box; margin: 0 }`
+        target.addEventListener("toggle", calculate)
+        function calculate() {
+          const buttonRect = e.getBoundingClientRect()
+          const targetRect = target.getBoundingClientRect()
+          const t = `:popover-open { position: absolute; top: ${Math.floor(buttonRect.bottom + window.scrollY)}px; left: ${Math.floor(Math.max(targetRect.width / 2, buttonRect.left + buttonRect.width / 2))}px; width: ${Math.floor(buttonRect.width)}px; transform: translateX(-50%); box-sizing: content-box; margin: 0 }`
           document.styleSheets[0].insertRule(t, document.styleSheets[0].cssRules.length)
-        })
+        }
       })
     //- Prevent default
     script.

src/web/routes/download-discord.test.js

@@ -1,7 +1,7 @@
 // @ts-check
 
 const assert = require("assert").strict
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const {test} = require("supertape")
 const {router} = require("../../../test/web")
 const {_cache} = require("./download-discord")

src/web/routes/download-matrix.test.js

@@ -2,7 +2,7 @@
 
 const fs = require("fs")
 const {convertImageStream} = require("../../m2d/converters/emoji-sheet")
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const {test} = require("supertape")
 const {router} = require("../../../test/web")
 const streamWeb = require("stream/web")

src/web/routes/guild-settings.js

@@ -4,10 +4,12 @@ const assert = require("assert/strict")
 const {z} = require("zod")
 const {defineEventHandler, createError, readValidatedBody, getRequestHeader, setResponseHeader, sendRedirect, H3Event} = require("h3")
 
-const {as, db, sync, select} = require("../../passthrough")
+const {as, db, sync, select, discord} = require("../../passthrough")
 
 /** @type {import("../auth")} */
 const auth = sync.require("../auth")
+/** @type {import("../pug-sync")} */
+const pugSync = sync.require("../pug-sync")
 /** @type {import("../../d2m/actions/set-presence")} */
 const setPresence = sync.require("../../d2m/actions/set-presence")
 
@@ -20,6 +22,14 @@ function getCreateSpace(event) {
 	return event.context.createSpace || sync.require("../../d2m/actions/create-space")
 }
 
+const schema = {
+	defaultRoles: z.object({
+		guild_id: z.string(),
+		toggle_role: z.string().optional(),
+		remove_role: z.string().optional()
+	})
+}
+
 /**
  * @typedef Options
  * @prop {(value: string?) => number} transform
@@ -94,3 +104,36 @@ as.router.post("/api/privacy-level", defineToggle("privacy_level", {
 		await createSpace.syncSpaceFully(guildID) // this is inefficient but OK to call infrequently on user request
 	}
 }))
+
+as.router.post("/api/default-roles", defineEventHandler(async event => {
+	const parsedBody = await readValidatedBody(event, schema.defaultRoles.parse)
+
+	const managed = await auth.getManagedGuilds(event)
+	const guildID = parsedBody.guild_id
+	if (!managed.has(guildID)) throw createError({status: 403, message: "Forbidden", data: "Can't change settings for a guild you don't have Manage Server permissions in"})
+
+	const roleID = parsedBody.toggle_role || parsedBody.remove_role
+	assert(roleID)
+	assert.notEqual(guildID, roleID) // the @everyone role is always default
+
+	const guild = discord.guilds.get(guildID)
+	assert(guild)
+
+	let shouldRemove = !!parsedBody.remove_role
+	if (!shouldRemove) {
+		shouldRemove = !!select("role_default", "role_id", {guild_id: guildID, role_id: roleID}).get()
+	}
+
+	if (shouldRemove) {
+		db.prepare("DELETE FROM role_default WHERE guild_id = ? AND role_id = ?").run(guildID, roleID)
+	} else {
+		assert(guild.roles.find(r => r.id === roleID))
+		db.prepare("INSERT OR IGNORE INTO role_default (guild_id, role_id) VALUES (?, ?)").run(guildID, roleID)
+	}
+
+	if (getRequestHeader(event, "HX-Request")) {
+		return pugSync.render(event, "fragments/default-roles-list.pug", {guild, guild_id: guildID})
+	} else {
+		return sendRedirect(event, `/guild?guild_id=${guildID}`, 302)
+	}
+}))

src/web/routes/guild-settings.test.js

@@ -1,6 +1,6 @@
 // @ts-check
 
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const {router, test} = require("../../../test/web")
 const {select} = require("../../passthrough")
 const {MatrixServerError} = require("../../matrix/mreq")

src/web/routes/guild.test.js

@@ -1,7 +1,7 @@
 // @ts-check
 
 const DiscordTypes = require("discord-api-types/v10")
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const {router, test} = require("../../../test/web")
 const {MatrixServerError} = require("../../matrix/mreq")
 const {_getPosition} = require("./guild")

src/web/routes/link.test.js

@@ -1,6 +1,6 @@
 // @ts-check
 
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const {router, test} = require("../../../test/web")
 const {MatrixServerError} = require("../../matrix/mreq")
 const {select, db} = require("../../passthrough")

src/web/routes/log-in-with-matrix.test.js

@@ -1,6 +1,6 @@
 // @ts-check
 
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const {router, test} = require("../../../test/web")
 const {MatrixServerError} = require("../../matrix/mreq")
 

src/web/routes/oauth.test.js

@@ -1,7 +1,7 @@
 // @ts-check
 
 const DiscordTypes = require("discord-api-types/v10")
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const assert = require("assert/strict")
 const {router, test} = require("../../../test/web")
 

src/web/routes/password.test.js

@@ -1,6 +1,6 @@
 // @ts-check
 
-const tryToCatch = require("try-to-catch")
+const {tryToCatch} = require("try-to-catch")
 const {test} = require("supertape")
 const {router} = require("../../../test/web")
 

test/test.js

@@ -6,31 +6,29 @@ const sqlite = require("better-sqlite3")
 const {Writable} = require("stream")
 const migrate = require("../src/db/migrate")
 const HeatSync = require("heatsync")
-const {test, extend} = require("supertape")
+const {test} = require("supertape")
 const data = require("./data")
 const {green} = require("ansi-colors")
+const mixin = require("@cloudrac3r/mixin-deep")
 
 const passthrough = require("../src/passthrough")
 const db = new sqlite(":memory:")
 
-const {reg} = require("../src/matrix/read-registration")
+const registration = require("../src/matrix/read-registration")
-reg.ooye.discord_token = "Njg0MjgwMTkyNTUzODQ0NzQ3.Xl3zlw.baby"
+registration.reg = mixin(registration.getTemplateRegistration("cadence.moe"), {
-reg.ooye.server_origin = "https://matrix.cadence.moe" // so that tests will pass even when hard-coded
+	id: "baby",
-reg.ooye.server_name = "cadence.moe"
+	url: "http://localhost:6693",
-reg.ooye.namespace_prefix = "_ooye_"
+	as_token: "don't actually take authenticated actions on the server",
-reg.sender_localpart = "_ooye_bot"
+	hs_token: "don't actually take authenticated actions on the server",
-reg.id = "baby"
+	ooye: {
-reg.as_token = "don't actually take authenticated actions on the server"
+		server_origin: "https://matrix.cadence.moe",
-reg.hs_token = "don't actually take authenticated actions on the server"
+		bridge_origin: "https://bridge.example.org",
-reg.namespaces = {
+		discord_token: "Njg0MjgwMTkyNTUzODQ0NzQ3.Xl3zlw.baby",
-	users: [{regex: "@_ooye_.*:cadence.moe", exclusive: true}],
+		discord_client_secret: "baby",
-	aliases: [{regex: "#_ooye_.*:cadence.moe", exclusive: true}]
+		web_password: "password123",
+		time_zone: "Pacific/Auckland",
 	}
-reg.ooye.bridge_origin = "https://bridge.example.org"
+})
-reg.ooye.time_zone = "Pacific/Auckland"
-reg.ooye.max_file_size = 5000000
-reg.ooye.web_password = "password123"
-reg.ooye.include_user_id_in_mxid = false
 
 const sync = new HeatSync({watchFS: false})