Add unlink space feature

Squashed commit of the following: commit bd9fd5cd3cf3f1301df18074c997ec537a81b4f5 Author: Elliu <elliu@hashi.re> Date: Sat Nov 15 15:32:18 2025 +0900 Revert "fix matrix / db resource cleanup on space unlink" This reverts commit ccc10564f1e33ab277bc15f360b8c65f2d0ea867. commit eec559293861305394770343d501389905fe1650 Author: Cadence Ember <cadence@disroot.org> Date: Sat Nov 8 13:01:59 2025 +1300 Dependency inject snow for testing commit b45eeb150e0702c201b8f710a3bdaa8e9f7d90be Author: Elliu <elliu@hashi.re> Date: Wed Nov 5 00:20:20 2025 +0900 manually revert 3597a3b: "Factorize some of the space link/unlink sanity checks" commit 0f2e575df21bf940e4780c30d2701da989f62471 Author: Elliu <elliu@hashi.re> Date: Wed Nov 5 00:04:38 2025 +0900 on unbriding room, also demote powel level of bridge user in matrix room commit ccc10564f1e33ab277bc15f360b8c65f2d0ea867 Author: Elliu <elliu@hashi.re> Date: Wed Nov 5 00:04:13 2025 +0900 fix matrix / db resource cleanup on space unlink commit f4c1ea7c7f7d5a265b84ce464cd8e9e26d934a32 Author: Elliu <elliu@hashi.re> Date: Tue Nov 4 23:54:41 2025 +0900 /unlink-space: properly leave guild and clean DB commit 5f0ec3b2c861cc8b9edc51389d6176c7a22a1135 Author: Cadence Ember <cadence@disroot.org> Date: Sun Nov 2 22:31:14 2025 +1300 Improve HTML to a state I'm happy with commit 16309f26b3dd72927e05454cee8c63504b447b7f Author: Elliu <elliu@hashi.re> Date: Sat Nov 1 22:24:51 2025 +0900 add tests from /unlink-space endpoint commit 5aff6f9048330a86eda3b2d1862f42df8d2bad84 Author: Elliu <elliu@hashi.re> Date: Sat Sep 6 20:05:18 2025 +0900 Add /api/unlink-space implementation commit dfc61594f68db4b52b3553ac7d3561ae9ce13b49 Author: Elliu <elliu@hashi.re> Date: Sat Sep 6 19:59:44 2025 +0900 Extract /api/unlink code to its own function commit 3597a3b5ce9dde3a9ddfe0853253bfda91a38335 Author: Elliu <elliu@hashi.re> Date: Sat Sep 6 19:28:42 2025 +0900 Factorize some of the space link/unlink sanity checks commit 05d788e26394106d9be24cef8b38f6c6f1e4c984 Author: Elliu <elliu@hashi.re> Date: Sat Sep 6 18:23:01 2025 +0900 Add button to unlink a space Co-authored-by: Cadence Ember <cadence@disroot.org>
2026-02-13 19:12:01 +13:00
parent 1defd83fde
commit 35e9c9e1ea
9 changed files with 322 additions and 55 deletions
--- a/src/d2m/actions/create-room.js
+++ b/src/d2m/actions/create-room.js
@@ -439,19 +439,11 @@ function syncRoom(channelID) {
 	return _syncRoom(channelID, true)
 }

-async function unbridgeChannel(channelID) {
-	/** @ts-ignore @type {DiscordTypes.APIGuildChannel} */
-	const channel = discord.channels.get(channelID)
-	assert.ok(channel)
-	assert.ok(channel.guild_id)
-	return unbridgeDeletedChannel(channel, channel.guild_id)
-}
-
 /**
 * @param {{id: string, topic?: string?}} channel channel-ish (just needs an id, topic is optional)
 * @param {string} guildID
 */
-async function unbridgeDeletedChannel(channel, guildID) {
+async function unbridgeChannel(channel, guildID) {
 	const roomID = select("channel_room", "room_id", {channel_id: channel.id}).pluck().get()
 	assert.ok(roomID)
 	const row = from("guild_space").join("guild_active", "guild_id").select("space_id", "autocreate").where({guild_id: guildID}).get()
@@ -488,14 +480,13 @@ async function unbridgeDeletedChannel(channel, guildID) {

 	if (!botInRoom) return

-	// demote admins in room
-	/** @type {Ty.Event.M_Power_Levels} */
-	const powerLevelContent = await api.getStateEvent(roomID, "m.room.power_levels", "")
-	powerLevelContent.users ??= {}
-	for (const mxid of Object.keys(powerLevelContent.users)) {
-		if (powerLevelContent.users[mxid] >= 100 && mUtils.eventSenderIsFromDiscord(mxid) && mxid !== mUtils.bot) {
-			delete powerLevelContent.users[mxid]
-			await api.sendState(roomID, "m.room.power_levels", "", powerLevelContent, mxid)
+	// demote discord sim admins in room
+	const {powerLevels, allCreators} = await mUtils.getEffectivePower(roomID, [], api)
+	const powerLevelsUsers = (powerLevels.users ||= {})
+	for (const mxid of Object.keys(powerLevelsUsers)) {
+		if (powerLevelsUsers[mxid] >= (powerLevels.state_default ?? 50) && !allCreators.includes(mxid) && mUtils.eventSenderIsFromDiscord(mxid) && mxid !== mUtils.bot) {
+			delete powerLevelsUsers[mxid]
+			await api.sendState(roomID, "m.room.power_levels", "", powerLevels, mxid) // done individually because each user must demote themselves
 		}
 	}

@@ -526,6 +517,7 @@ async function unbridgeDeletedChannel(channel, guildID) {
 	}

 	// leave room
+	await mUtils.setUserPower(roomID, mUtils.bot, 0, api)
 	await api.leaveRoom(roomID)
 }

@@ -589,6 +581,5 @@ module.exports.postApplyPowerLevels = postApplyPowerLevels
 module.exports._convertNameAndTopic = convertNameAndTopic
 module.exports._syncSpaceMember = _syncSpaceMember
 module.exports.unbridgeChannel = unbridgeChannel
-module.exports.unbridgeDeletedChannel = unbridgeDeletedChannel
 module.exports.existsOrAutocreatable = existsOrAutocreatable
 module.exports.assertExistsOrAutocreatable = assertExistsOrAutocreatable
--- a/src/d2m/actions/create-space.js
+++ b/src/d2m/actions/create-space.js
@@ -203,7 +203,7 @@ async function syncSpaceFully(guildID) {
 		if (discord.channels.has(channelID)) {
 			await createRoom.syncRoom(channelID)
 		} else {
-			await createRoom.unbridgeDeletedChannel({id: channelID}, guildID)
+			await createRoom.unbridgeChannel({id: channelID}, guildID)
 		}
 	}

--- a/src/d2m/event-dispatcher.js
+++ b/src/d2m/event-dispatcher.js
@@ -250,7 +250,7 @@ module.exports = {
 		const roomID = select("channel_room", "room_id", {channel_id: channel.id}).pluck().get()
 		if (!roomID) return // channel wasn't being bridged in the first place
 		// @ts-ignore
-		await createRoom.unbridgeDeletedChannel(channel, guildID)
+		await createRoom.unbridgeChannel(channel, guildID)
 	},

 	/**
--- a/src/web/pug/guild.pug
+++ b/src/web/pug/guild.pug
@@ -75,6 +75,7 @@ block body
        button.s-btn(class=space_id ? "s-btn__muted" : "s-btn__filled" hx-get=rel(`/qr?guild_id=${guild_id}`) hx-indicator="closest button" hx-swap="outerHTML" hx-disabled-elt="this") Show QR

  if space_id
+    h2.mt48.fs-headline1 Server settings
    h3.mt32.fs-category Privacy level
      span#privacy-level-loading
    .s-card
@@ -104,7 +105,7 @@ block body
          p.s-description.m0 Shareable invite links, like Discord
          p.s-description.m0 Publicly listed in directory, like Discord server discovery

-    h2.mt48.fs-headline1 Features
+    h3.mt32.fs-category Features
    .s-card.d-grid.px0.g16
      form.d-flex.ai-center.g16
        #url-preview-loading.p8
@@ -138,13 +139,13 @@ block body

    h3.mt32.fs-category Linked channels
    .s-card.bs-sm.p0
-      form.s-table-container(method="post" action=rel("/api/unlink") hx-confirm="Do you want to unlink these channels?\nIt may take a moment to clean up Matrix resources.")
+      form.s-table-container(method="post" action=rel("/api/unlink"))
        input(type="hidden" name="guild_id" value=guild_id)
        table.s-table.s-table__bx-simple
          each row in linkedChannelsWithDetails
            tr
              td.w40: +discord(row.channel)
-              td.p2: button.s-btn.s-btn__muted.s-btn__xs(name="channel_id" value=row.channel.id hx-post=rel("/api/unlink") hx-trigger="click" hx-disabled-elt="this")!= icons.Icons.IconLinkSm
+              td.p2: button.s-btn.s-btn__muted.s-btn__xs(name="channel_id" cx-prevent-default hx-post=rel("/api/unlink") hx-confirm="Do you want to unlink these channels?\nIt may take a moment to clean up Matrix resources." value=row.channel.id hx-indicator="this" hx-disabled-elt="this")!= icons.Icons.IconLinkSm
              td: +matrix(row)
          else
            tr
@@ -185,6 +186,19 @@ block body
          != icons.Icons.IconMerge
          = ` Link`

+  h3.mt32.fs-category Unlink server
+  form.s-card.d-flex.gx16.ai-center(method="post" action=rel("/api/unlink-space"))
+    input(type="hidden" name="guild_id" value=guild.id)
+    .fl-grow1.s-prose.s-prose__sm.lh-lg
+      p.fc-medium.
+        Not using this bridge, or just made a mistake? You can unlink the whole server and all its channels.#[br]
+        This may take a minute to process. Please be patient and wait until the page refreshes.
+    div
+      button.s-btn.s-btn__icon.s-btn__danger.s-btn__outlined(cx-prevent-default hx-post=rel("/api/unlink-space") hx-confirm="Do you want to unlink this server and all its channels?\nIt may take a minute to clean up Matrix resources." hx-indicator="this" hx-disabled-elt="this")
+        != icons.Icons.IconUnsync
+        span.ml4= ` Unlink`
+
+  if space_id
    details.mt48
      summary Debug room list
      .d-grid.grid__2.gx24
@@ -205,7 +219,7 @@ block body
            ul.my8.ml24
              each row in removedWrongTypeChannels
                li: a(href=`https://discord.com/channels/${guild_id}/${row.id}`) (#{row.type}) #{row.name}
-          h3.mt24 Unavailable channels: Bridge can't access
+          h3.mt24 Unavailable channels: Discord bot can't access
          .s-card.p0
            ul.my8.ml24
              each row in removedPrivateChannels
--- a/src/web/pug/guild_not_linked.pug
+++ b/src/web/pug/guild_not_linked.pug
@@ -42,12 +42,23 @@ block body
              | You need to log in with Matrix first.
              a.s-btn.s-btn__matrix.s-btn__outlined(href=rel(`/log-in-with-matrix`, {next: `./guild?guild_id=${guild_id}`})) Log in with Matrix

-  h3.mt48.fs-category Auto-create
-  .s-card
+  h3.mt48.fs-category Other choices
+  .s-card.d-grid.g16
    form.d-flex.ai-center.g8(method="post" action=rel("/api/autocreate") hx-post=rel("/api/autocreate") hx-indicator="#easy-mode-button")
      input(type="hidden" name="guild_id" value=guild_id)
      input(type="hidden" name="autocreate" value="true")
      label.s-label.fl-grow1
-        | Changed your mind?
+        | Do it automatically
        p.s-description If you want, OOYE can create and manage the Matrix space so you don't have to.
-      button.s-btn.s-btn__outlined#easy-mode-button Use easy mode
+      button.s-btn.s-btn__icon.s-btn__outlined#easy-mode-button
+        != icons.Icons.IconWand
+        span.ml4= ` Use easy mode`
+
+    form.d-flex.gx16.ai-center(method="post" action=rel("/api/unlink-space"))
+      input(type="hidden" name="guild_id" value=guild.id)
+      label.s-label.fl-grow1
+        | Cancel
+        p.s-description Don't want to link this server after all? Here's the button for you.
+      button.s-btn.s-btn__icon.s-btn__muted.s-btn__outlined(cx-prevent-default hx-post=rel("/api/unlink-space") hx-indicator="this" hx-disabled-elt="this")
+        != icons.Icons.IconUnsync
+        span.ml4= ` Unlink`
--- a/src/web/pug/includes/template.pug
+++ b/src/web/pug/includes/template.pug
@@ -129,6 +129,13 @@ html(lang="en")
          document.styleSheets[0].insertRule(t, document.styleSheets[0].cssRules.length)
        })
      })
+    //- Prevent default
+    script.
+      document.querySelectorAll("[cx-prevent-default]").forEach(e => {
+        e.addEventListener("click", event => {
+          event.preventDefault()
+        })
+      })
    script(src=rel("/static/htmx.js"))
    //- Error dialog
    aside.s-modal#server-error(aria-hidden="true")
--- a/src/web/routes/link.js
+++ b/src/web/routes/link.js
@@ -9,11 +9,8 @@ const DiscordTypes = require("discord-api-types/v10")
 const {discord, db, as, sync, select, from} = require("../../passthrough")
 /** @type {import("../auth")} */
 const auth = sync.require("../auth")
-/** @type {import("../../matrix/mreq")} */
-const mreq = sync.require("../../matrix/mreq")
 /** @type {import("../../matrix/utils")}*/
 const utils = sync.require("../../matrix/utils")
-const {reg} = require("../../matrix/read-registration")

 /**
 * @param {H3Event} event
@@ -42,6 +39,15 @@ function getCreateSpace(event) {
 	return event.context.createSpace || sync.require("../../d2m/actions/create-space")
 }

+/**
+ * @param {H3Event} event
+ * @returns {import("snowtransfer").SnowTransfer}
+ */
+function getSnow(event) {
+	/* c8 ignore next */
+	return event.context.snow || discord.snow
+}
+
 const schema = {
 	linkSpace: z.object({
 		guild_id: z.string(),
@@ -55,7 +61,37 @@ const schema = {
 	unlink: z.object({
 		guild_id: z.string(),
 		channel_id: z.string()
-	})
+	}),
+	unlinkSpace: z.object({
+		guild_id: z.string(),
+	}),
+}
+
+/**
+ * @param {H3Event} event
+ * @param {string} channel_id
+ * @param {string} guild_id
+ */
+async function validateAndUnbridgeChannel(event, channel_id, guild_id) {
+	const createRoom = getCreateRoom(event)
+
+	// Check channel is currently bridged
+	const row = select("channel_room", "channel_id", {channel_id: channel_id}).get()
+	if (!row) throw createError({status: 400, message: "Bad Request", data: `Channel ID ${channel_id} is not currently bridged`})
+
+	// Check that the channel (if it exists) is part of this guild
+	/** @type {any} */
+	let channel = discord.channels.get(channel_id)
+	if (channel) {
+		if (!("guild_id" in channel) || channel.guild_id !== guild_id) throw createError({status: 400, message: "Bad Request", data: `Channel ID ${channel_id} is not part of guild ${guild_id}`})
+	} else {
+		// Otherwise, if the channel isn't cached, it must have been deleted.
+		// There's no other authentication here - it's okay for anyone to unlink a deleted channel just by knowing its ID.
+		channel = {id: channel_id}
+	}
+
+	// Do it
+	await createRoom.unbridgeChannel(channel, guild_id)
 }

 as.router.post("/api/link-space", defineEventHandler(async event => {
@@ -195,7 +231,6 @@ as.router.post("/api/link", defineEventHandler(async event => {
 as.router.post("/api/unlink", defineEventHandler(async event => {
 	const {channel_id, guild_id} = await readValidatedBody(event, schema.unlink.parse)
 	const managed = await auth.getManagedGuilds(event)
-	const createRoom = getCreateRoom(event)

 	// Check guild ID or nonce
 	if (!managed.has(guild_id)) throw createError({status: 403, message: "Forbidden", data: "Can't edit a guild you don't have Manage Server permissions in"})
@@ -204,24 +239,56 @@ as.router.post("/api/unlink", defineEventHandler(async event => {
 	const guild = discord.guilds.get(guild_id)
 	if (!guild) throw createError({status: 400, message: "Bad Request", data: "Discord guild does not exist or bot has not joined it"})

-	// Check that the channel (if it exists) is part of this guild
-	/** @type {any} */
-	let channel = discord.channels.get(channel_id)
-	if (channel) {
-		if (!("guild_id" in channel) || channel.guild_id !== guild_id) throw createError({status: 400, message: "Bad Request", data: `Channel ID ${channel_id} is not part of guild ${guild_id}`})
-	} else {
-		// Otherwise, if the channel isn't cached, it must have been deleted.
-		// There's no other authentication here - it's okay for anyone to unlink a deleted channel just by knowing its ID.
-		channel = {id: channel_id}
-	}
-
-	// Check channel is currently bridged
-	const row = select("channel_room", "channel_id", {channel_id: channel_id}).get()
-	if (!row) throw createError({status: 400, message: "Bad Request", data: `Channel ID ${channel_id} is not currently bridged`})
-
-	// Do it
-	await createRoom.unbridgeDeletedChannel(channel, guild_id)
+	await validateAndUnbridgeChannel(event, channel_id, guild_id)

 	setResponseHeader(event, "HX-Refresh", "true")
 	return null // 204
 }))
+
+as.router.post("/api/unlink-space", defineEventHandler(async event => {
+	const {guild_id} = await readValidatedBody(event, schema.unlinkSpace.parse)
+	const managed = await auth.getManagedGuilds(event)
+	const api = getAPI(event)
+	const snow = getSnow(event)
+
+	// Check guild ID or nonce
+	if (!managed.has(guild_id)) throw createError({status: 403, message: "Forbidden", data: "Can't edit a guild you don't have Manage Server permissions in"})
+
+	// Check guild exists
+	const guild = discord.guilds.get(guild_id)
+	if (!guild) throw createError({status: 400, message: "Bad Request", data: "Discord guild does not exist or bot has not joined it"})
+
+	const active = select("guild_active", "guild_id", {guild_id: guild_id}).get()
+	if (!active) {
+		throw createError({status: 400, message: "Bad Request", data: "Discord guild has not been considered for bridging"})
+	}
+
+	// Check if there are Matrix resources
+	const spaceID = select("guild_space", "space_id", {guild_id: guild_id}).pluck().get()
+	if (spaceID) {
+		// Unlink all rooms
+		const linkedChannels = select("channel_room", ["channel_id", "room_id", "name", "nick"], {guild_id: guild_id}).all()
+		for (const channel of linkedChannels) {
+			await validateAndUnbridgeChannel(event, channel.channel_id, guild_id)
+		}
+
+		// Verify all rooms were unlinked
+		const remainingLinkedChannels = select("channel_room", ["channel_id", "room_id", "name", "nick"], {guild_id: guild_id}).all()
+		if (remainingLinkedChannels.length) {
+			throw createError({status: 500, message: "Internal Server Error", data: "Failed to unlink some rooms. Please try doing it manually, or report a bug. The space will not be unlinked until all rooms are."})
+		}
+
+		// Unlink space
+		await utils.setUserPower(spaceID, utils.bot, 0, api)
+		await api.leaveRoom(spaceID)
+		db.prepare("DELETE FROM guild_space WHERE guild_id = ? AND space_id = ?").run(guild_id, spaceID)
+	}
+
+	// Mark as not considered for bridging
+	db.prepare("DELETE FROM guild_active WHERE guild_id = ?").run(guild_id)
+	db.prepare("DELETE FROM invite WHERE room_id = ?").run(spaceID)
+	await snow.user.leaveGuild(guild_id)
+
+	setResponseHeader(event, "HX-Redirect", "/")
+	return null
+}))
--- a/src/web/routes/link.test.js
+++ b/src/web/routes/link.test.js
@@ -613,7 +613,7 @@ test("web unlink room: checks that the channel is part of the guild", async t =>
 	t.equal(error.data, "Channel ID 112760669178241024 is not part of guild 665289423482519565")
 })

-test("web unlink room: successfully calls unbridgeDeletedChannel when the channel does exist", async t => {
+test("web unlink room: successfully calls unbridgeChannel when the channel does exist", async t => {
 	let called = 0
 	await router.test("post", "/api/unlink", {
 		sessionData: {
@@ -624,7 +624,7 @@ test("web unlink room: successfully calls unbridgeDeletedChannel when the channe
 			guild_id: "665289423482519565"
 		},
 		createRoom: {
-			async unbridgeDeletedChannel(channel) {
+			async unbridgeChannel(channel) {
 				called++
 				t.equal(channel.id, "665310973967597573")
 			}
@@ -633,7 +633,7 @@ test("web unlink room: successfully calls unbridgeDeletedChannel when the channe
 	t.equal(called, 1)
 })

-test("web unlink room: successfully calls unbridgeDeletedChannel when the channel does not exist", async t => {
+test("web unlink room: successfully calls unbridgeChannel when the channel does not exist", async t => {
 	let called = 0
 	await router.test("post", "/api/unlink", {
 		sessionData: {
@@ -644,7 +644,7 @@ test("web unlink room: successfully calls unbridgeDeletedChannel when the channe
 			guild_id: "112760669178241024"
 		},
 		createRoom: {
-			async unbridgeDeletedChannel(channel) {
+			async unbridgeChannel(channel) {
 				called++
 				t.equal(channel.id, "489237891895768942")
 			}
@@ -654,7 +654,9 @@ test("web unlink room: successfully calls unbridgeDeletedChannel when the channe
 })

 test("web unlink room: checks that the channel is bridged", async t => {
+	const row = db.prepare("SELECT * FROM channel_room WHERE channel_id = '665310973967597573'").get()
 	db.prepare("DELETE FROM channel_room WHERE channel_id = '665310973967597573'").run()
+
 	const [error] = await tryToCatch(() => router.test("post", "/api/unlink", {
 		sessionData: {
 			managedGuilds: ["665289423482519565"]
@@ -665,4 +667,179 @@ test("web unlink room: checks that the channel is bridged", async t => {
 		}
 	}))
 	t.equal(error.data, "Channel ID 665310973967597573 is not currently bridged")
+
+	db.prepare("INSERT INTO channel_room (channel_id, room_id, name, nick, thread_parent, custom_avatar, last_bridged_pin_timestamp, speedbump_id, speedbump_checked, speedbump_webhook_id, guild_id, custom_topic) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)").run(row.channel_id, row.room_id, row.name, row.nick, row.thread_parent, row.custom_avatar, row.last_bridged_pin_timestamp, row.speedbump_id, row.speedbump_checked, row.speedbump_webhook_id, row.guild_id, row.custom_topic)
+	const new_row = db.prepare("SELECT * FROM channel_room WHERE channel_id = '665310973967597573'").get()
+	t.deepEqual(row, new_row)
+})
+
+// *****
+
+test("web unlink space: access denied if not logged in to Discord", async t => {
+	const [error] = await tryToCatch(() => router.test("post", "/api/unlink-space", {
+		body: {
+			guild_id: "665289423482519565"
+		}
+	}))
+	t.equal(error.data, "Can't edit a guild you don't have Manage Server permissions in")
+})
+
+test("web unlink space: checks that guild exists", async t => {
+	const [error] = await tryToCatch(() => router.test("post", "/api/unlink-space", {
+		sessionData: {
+			managedGuilds: ["2"]
+		},
+		body: {
+			guild_id: "2"
+		}
+	}))
+	t.equal(error.data, "Discord guild does not exist or bot has not joined it")
+})
+
+test("web unlink space: checks that a space is linked to the guild before trying to unlink the space", async t => {
+	db.exec("BEGIN TRANSACTION")
+	db.prepare("DELETE FROM guild_active WHERE guild_id = '665289423482519565'").run()
+
+	const [error] = await tryToCatch(() => router.test("post", "/api/unlink-space", {
+		sessionData: {
+			managedGuilds: ["665289423482519565"]
+		},
+		body: {
+			guild_id: "665289423482519565"
+		}
+	}))
+	t.equal(error.data, "Discord guild has not been considered for bridging")
+
+	db.exec("ROLLBACK") // ぬ
+})
+
+test("web unlink space: correctly abort unlinking if some linked channels remain after trying to unlink them all", async t => {
+	let unbridgedChannel = false
+
+	const [error] = await tryToCatch(() => router.test("post", "/api/unlink-space", {
+		sessionData: {
+			managedGuilds: ["665289423482519565"]
+		},
+		body: {
+			guild_id: "665289423482519565",
+		},
+		createRoom: {
+			async unbridgeChannel(channel, guildID) {
+				unbridgedChannel = true
+				t.ok(["1438284564815548418", "665310973967597573"].includes(channel.id))
+				t.equal(guildID, "665289423482519565")
+				// Do not actually delete the link from DB, should trigger error later in check
+			}
+		},
+		api: {
+			async *generateFullHierarchy(spaceID) {
+				t.equal(spaceID, "!zTMspHVUBhFLLSdmnS:cadence.moe")
+				yield {
+					room_id: "!NDbIqNpJyPvfKRnNcr:cadence.moe",
+					children_state: [],
+					guest_can_join: false,
+					num_joined_members: 2
+				}
+				/* c8 ignore next */
+			},
+		}
+	}))
+
+	t.equal(error.data, "Failed to unlink some rooms. Please try doing it manually, or report a bug. The space will not be unlinked until all rooms are.")
+	t.equal(unbridgedChannel, true)
+})
+
+test("web unlink space: successfully calls unbridgeChannel on linked channels in space, self-downgrade power level, leave space, and delete link from DB", async t => {
+	const {reg} = require("../../matrix/read-registration")
+	const me = `@${reg.sender_localpart}:${reg.ooye.server_name}`
+
+	const getLinkRowQuery = "SELECT * FROM guild_space WHERE guild_id = '665289423482519565'"
+
+	const row = db.prepare(getLinkRowQuery).get()
+	t.equal(row.space_id, "!zTMspHVUBhFLLSdmnS:cadence.moe")
+
+	let unbridgedChannel = false
+	let downgradedPowerLevel = false
+	let leftRoom = false
+	await router.test("post", "/api/unlink-space", {
+		sessionData: {
+			managedGuilds: ["665289423482519565"]
+		},
+		body: {
+			guild_id: "665289423482519565",
+		},
+		createRoom: {
+			async unbridgeChannel(channel, guildID) {
+				unbridgedChannel = true
+				t.ok(["1438284564815548418", "665310973967597573"].includes(channel.id))
+				t.equal(guildID, "665289423482519565")
+
+				// In order to not simulate channel deletion and not trigger the post unlink channels, pre-unlink space check
+				db.prepare("DELETE FROM channel_room WHERE channel_id = ?").run(channel.id)
+			}
+		},
+		snow: {
+			user: {
+				// @ts-ignore - snowtransfer or discord-api-types broken, 204 No Content should be mapped to void but is actually mapped to never
+				async leaveGuild(guildID) {
+					t.equal(guildID, "665289423482519565")
+				}
+			}
+		},
+		api: {
+			async *generateFullHierarchy(spaceID) {
+				t.equal(spaceID, "!zTMspHVUBhFLLSdmnS:cadence.moe")
+				yield {
+					room_id: "!NDbIqNpJyPvfKRnNcr:cadence.moe",
+					children_state: [],
+					guest_can_join: false,
+					num_joined_members: 2
+				}
+				/* c8 ignore next */
+			},
+
+			async getStateEvent(roomID, type, key) { // getting power levels from space to apply to room
+				t.equal(type, "m.room.power_levels")
+				t.equal(key, "")
+				return {users: {"@_ooye_bot:cadence.moe": 100, "@example:matrix.org": 50}, events: {"m.room.tombstone": 100}}
+			},
+
+			async getStateEventOuter(roomID, type, key) {
+				t.equal(roomID, "!zTMspHVUBhFLLSdmnS:cadence.moe")
+				t.equal(type, "m.room.create")
+				t.equal(key, "")
+				return {
+					type: "m.room.create",
+					state_key: "",
+					sender: "@_ooye_bot:cadence.moe",
+					room_id: "!zTMspHVUBhFLLSdmnS:cadence.moe",
+					event_id: "$create",
+					origin_server_ts: 0,
+					content: {
+						room_version: "11"
+					}
+				}
+			},
+
+			async sendState(roomID, type, key, content) {
+				downgradedPowerLevel = true
+				t.equal(roomID, "!zTMspHVUBhFLLSdmnS:cadence.moe")
+				t.equal(type, "m.room.power_levels")
+				t.notOk(me in content.users, `got ${JSON.stringify(content)} but expected bot user to not be present`)
+				return ""
+			},
+
+			async leaveRoom(spaceID) {
+				leftRoom = true
+				t.equal(spaceID, "!zTMspHVUBhFLLSdmnS:cadence.moe")
+			},
+		}
+	})
+
+	t.equal(unbridgedChannel, true)
+	t.equal(downgradedPowerLevel, true)
+	t.equal(leftRoom, true)
+
+	const missed_row = db.prepare(getLinkRowQuery).get()
+	t.equal(missed_row, undefined)
 })
--- a/test/ooye-test-data.sql
+++ b/test/ooye-test-data.sql
@@ -22,7 +22,7 @@ INSERT INTO channel_room (channel_id, room_id, name, nick, thread_parent, custom
 ('176333891320283136', '!qzDBLKlildpzrrOnFZ:cadence.moe', '🌈丨davids-horse_she-took-the-kids', 'wonderland', NULL, 'mxc://cadence.moe/EVvrSkKIRONHjtRJsMLmHWLS', '112760669178241024'),
 ('489237891895768942', '!tnedrGVYKFNUdnegvf:tchncs.de', 'ex-room-doesnt-exist-any-more', NULL, NULL, NULL, '66192955777486848'),
 ('1160894080998461480', '!TqlyQmifxGUggEmdBN:cadence.moe', 'ooyexperiment', NULL, NULL, NULL, '66192955777486848'),
-('1161864271370666075', '!mHmhQQPwXNananMUqq:cadence.moe', 'updates', NULL, NULL, NULL, '665289423482519565'),
+('1161864271370666075', '!mHmhQQPwXNananMUqq:cadence.moe', 'updates', NULL, NULL, NULL, '112760669178241024'),
 ('1438284564815548418', '!MHxNpwtgVqWOrmyoTn:cadence.moe', 'sin-cave', NULL, NULL, NULL, '665289423482519565'),
 ('598707048112193536', '!JBxeGYnzQwLnaooOLD:cadence.moe', 'winners', NULL, NULL, NULL, '1345641201902288987');