[rooms] improve room ban/unban, history

[api] mod kick
[match] allow banned users into dorm

apps/api/src/openapi.ts

@@ -1477,6 +1477,18 @@ export const InstantKickRequest = z.object({
 	PlayerIds: z.array(z.int()).describe('Account ids to kick out of that instance'),
 })
 
+/** `POST /api/PlayerReporting/v1/roomModKick` form body — one player out of one instance. */
+export const RoomModKickRequest = z.object({
+	PlayerId: z.string().describe('Account id of the player to kick'),
+	GameSessionId: z
+		.string()
+		.describe('The room instance (game session) to eject them from — they must be standing in it'),
+	Reason: z
+		.string()
+		.optional()
+		.describe('Free text, shown to the kicked player in the kick message'),
+})
+
 /** `POST /api/PlayerReporting/v1/deviceId` form body — the id rotation the client reports. */
 export const DeviceIdRequest = z.object({
 	oldDeviceId: z.string().optional().describe('The id the client thinks we hold'),

apps/api/src/reports-db.ts

@@ -467,3 +467,84 @@ export async function getBansInForce(
 		.all<ReportRow>()
 	return results
 }
+
+// ---- Block details ----------------------------------------------------------
+
+/**
+ * `Duration` on a permanent ban. The client's field is a 32-bit int of seconds that PAIRS
+ * with `TimeoutStartedAt` — start + duration is the end of the block — so a ban with no
+ * end gets the largest value the field holds, 68 years past its start.
+ */
+export const PERMANENT_BAN_DURATION = 2_147_483_647
+
+/**
+ * The "not blocked" answer — the reference server's stub `ReturnModerationBlockDetails()`,
+ * widened to every key the client's `ModerationBlockDetail` decoder names (16 on the wire;
+ * the 2025 build's formatter reads them all). The ones past the stub's nine are the block
+ * kinds and screen dressings this server never uses — a device ban, a warning, the
+ * vote-kick reason, an associated account, the creator code of conduct, the top/bottom
+ * message overrides — so they carry their "none" values on every answer.
+ */
+export const NOT_BLOCKED = {
+	ReportCategory: -1,
+	Duration: 0,
+	GameSessionId: 0,
+	IsHostKick: false,
+	Message: null,
+	PlayerIdReporter: null,
+	IsBan: false,
+	IsVoiceModAutoban: false,
+	IsDeviceBan: false,
+	IsWarning: false,
+	VoteKickReason: null,
+	TimeoutStartedAt: null,
+	AssociatedAccountUsername: null,
+	ShowCreatorCodeOfConduct: false,
+	TopMessageOverride: null,
+	BottomMessageOverride: null,
+}
+
+/**
+ * The block details for a ban in force — the `report` row a moderator set `banned` on.
+ *
+ * Shared by the two places a player meets an account ban: `api`'s `moderationBlockDetails`
+ * (the screen at sign-in) and `www`'s live `ModerationKick` frame (the screen when the ban is
+ * handed down mid-session). Built once here so both screens describe the same ban.
+ *
+ * `Duration` and `TimeoutStartedAt` are a PAIR in the client: the block runs from the
+ * start for the duration. The start is `banned_at`, the instant the ban was handed down
+ * (see 0020_report_ban_audit.sql), and the duration is the seconds from there to
+ * `ban_expires`, so the two sum to the expiry; or `PERMANENT_BAN_DURATION` when there is
+ * none.
+ *
+ * It falls back to the report's `created_at` for a row banned before that column existed.
+ * The two can be months apart, and using `created_at` as the start — which is what this
+ * did before there was anything else to use — misreports both halves of the pair: a 7-day
+ * ban applied to a 30-day-old report told the player their block began a month ago and
+ * ended three weeks ago. Every pre-migration row still reads exactly as it used to, which
+ * is the point of the fallback rather than a coalesce to now.
+ *
+ * The category is the one the report was
+ * filed under, so the client's ban screen names the reason. `Message` is a fixed "Rule
+ * violation" rather than the report's `details` — those are the REPORTER's words, and the
+ * banned player isn't shown them, for the same reason `PlayerIdReporter` stays null: the
+ * reporter is not a host who kicked them, and naming them would tell the banned player who
+ * reported them. Everything else keeps its `NOT_BLOCKED` value: the other block kinds and
+ * screen dressings, none of which this server hands out.
+ */
+export function banBlockDetails(ban: ReportRow) {
+	const startedAtIso = ban.banned_at ?? ban.created_at
+	const startedAt = Date.parse(startedAtIso)
+	const duration =
+		ban.ban_expires === null
+			? PERMANENT_BAN_DURATION
+			: Math.max(1, Math.ceil((Date.parse(ban.ban_expires) - startedAt) / 1000))
+	return {
+		...NOT_BLOCKED,
+		ReportCategory: ban.report_category,
+		Duration: duration,
+		IsBan: true,
+		Message: 'Rule violation',
+		TimeoutStartedAt: startedAtIso,
+	}
+}

apps/api/src/routes/moderation.ts

@@ -2,9 +2,11 @@ import { Hono } from 'hono'
 import { describeRoute } from 'hono-openapi'
 
 import {
+	canManageRoom,
 	canModerateRoom,
 	deletePresence,
 	getPlayerIdsInInstance,
+	getPresence,
 	getPresences,
 	getRoomById,
 	getStoredRoomInstance,
@@ -30,18 +32,18 @@ import {
 	JsonArray,
 	jsonBody,
 	ModerationBlockDetails,
+	RoomModKickRequest,
 	SuccessErrorEnvelope,
 	UNAUTHORIZED_RESPONSE,
 	VoteToKickReason,
 	VoteToKickRequest,
 } from '../openapi'
-import { createReport, getActiveBan } from '../reports-db'
+import { banBlockDetails, createReport, getActiveBan, NOT_BLOCKED } from '../reports-db'
 import { createWarning } from '../warnings-db'
 
 import type { Context } from 'hono'
 import type { ModerationKickPayload } from '../../../notify/src/notification-payloads'
 import type { App } from '../context'
-import type { ReportRow } from '../reports-db'
 
 /**
  * Roles allowed to hand down a warning — the operator-granted elevated roles the auth
@@ -131,14 +133,17 @@ async function pushInstantKick(
 	playerIds: number[],
 	gameSessionId: number,
 	roomName: string,
-	moderatorId: number
+	moderatorId: number,
+	{ reason = '', isHostKick = true }: { reason?: string; isHostKick?: boolean } = {}
 ): Promise<void> {
 	const frame: ModerationKickPayload = {
 		ReportCategory: KickReportCategory.Moderator,
 		Duration: 0,
 		GameSessionId: gameSessionId,
-		IsHostKick: true,
-		Message: `You have been kicked from ${roomName}.`,
+		IsHostKick: isHostKick,
+		Message: reason
+			? `You have been kicked from ${roomName}. Reason: ${reason}`
+			: `You have been kicked from ${roomName}.`,
 		PlayerIdReporter: moderatorId,
 		IsBan: false,
 		IsVoiceModAutoban: false,
@@ -224,81 +229,6 @@ async function pushVoteToKick(c: Context<App>, message: VoteToKickMessage): Prom
 	}
 }
 
-/**
- * `Duration` on a permanent ban. The client's field is a 32-bit int of seconds that PAIRS
- * with `TimeoutStartedAt` — start + duration is the end of the block — so a ban with no
- * end gets the largest value the field holds, 68 years past its start.
- */
-const PERMANENT_BAN_DURATION = 2_147_483_647
-
-/**
- * The "not blocked" answer — the reference server's stub `ReturnModerationBlockDetails()`,
- * widened to every key the client's `ModerationBlockDetail` decoder names (16 on the wire;
- * the 2025 build's formatter reads them all). The ones past the stub's nine are the block
- * kinds and screen dressings this server never uses — a device ban, a warning, the
- * vote-kick reason, an associated account, the creator code of conduct, the top/bottom
- * message overrides — so they carry their "none" values on every answer.
- */
-const NOT_BLOCKED = {
-	ReportCategory: -1,
-	Duration: 0,
-	GameSessionId: 0,
-	IsHostKick: false,
-	Message: null,
-	PlayerIdReporter: null,
-	IsBan: false,
-	IsVoiceModAutoban: false,
-	IsDeviceBan: false,
-	IsWarning: false,
-	VoteKickReason: null,
-	TimeoutStartedAt: null,
-	AssociatedAccountUsername: null,
-	ShowCreatorCodeOfConduct: false,
-	TopMessageOverride: null,
-	BottomMessageOverride: null,
-}
-
-/**
- * The block details for a ban in force — the `report` row a moderator set `banned` on.
- *
- * `Duration` and `TimeoutStartedAt` are a PAIR in the client: the block runs from the
- * start for the duration. The start is `banned_at`, the instant the ban was handed down
- * (see 0020_report_ban_audit.sql), and the duration is the seconds from there to
- * `ban_expires`, so the two sum to the expiry; or `PERMANENT_BAN_DURATION` when there is
- * none.
- *
- * It falls back to the report's `created_at` for a row banned before that column existed.
- * The two can be months apart, and using `created_at` as the start — which is what this
- * did before there was anything else to use — misreports both halves of the pair: a 7-day
- * ban applied to a 30-day-old report told the player their block began a month ago and
- * ended three weeks ago. Every pre-migration row still reads exactly as it used to, which
- * is the point of the fallback rather than a coalesce to now.
- *
- * The category is the one the report was
- * filed under, so the client's ban screen names the reason. `Message` is a fixed "Rule
- * violation" rather than the report's `details` — those are the REPORTER's words, and the
- * banned player isn't shown them, for the same reason `PlayerIdReporter` stays null: the
- * reporter is not a host who kicked them, and naming them would tell the banned player who
- * reported them. Everything else keeps its `NOT_BLOCKED` value: the other block kinds and
- * screen dressings, none of which this server hands out.
- */
-function banBlockDetails(ban: ReportRow) {
-	const startedAtIso = ban.banned_at ?? ban.created_at
-	const startedAt = Date.parse(startedAtIso)
-	const duration =
-		ban.ban_expires === null
-			? PERMANENT_BAN_DURATION
-			: Math.max(1, Math.ceil((Date.parse(ban.ban_expires) - startedAt) / 1000))
-	return {
-		...NOT_BLOCKED,
-		ReportCategory: ban.report_category,
-		Duration: duration,
-		IsBan: true,
-		Message: 'Rule violation',
-		TimeoutStartedAt: startedAtIso,
-	}
-}
-
 // ---- Player reporting ------------------------------------------------------
 export const moderationRoutes = new Hono<App>({ strict: false })
 	// Whether the caller is currently blocked (banned / timed out / host-kicked). The one
@@ -700,6 +630,107 @@ export const moderationRoutes = new Hono<App>({ strict: false })
 		}
 	)
 
+	// ONE player kicked out of ONE live instance, from the in-room moderation menu, with a
+	// reason. The single-player sibling of `instantKick`, but form-encoded and gated more
+	// narrowly: the room's owner or a co-owner, or an account holding the staff role — not
+	// the room's Moderator (20) tier, which `instantKick` lets through.
+	//
+	// The cross-room guard is the same and it is the point: the instance names the room, the
+	// room is what the caller's authority is checked against, and the target's LIVE presence
+	// must put them in that very instance. Naming a player standing in some other room — even
+	// another instance of this one — kicks nobody, so authority over one room can never reach
+	// a session in another.
+	.post(
+		'/api/PlayerReporting/v1/roomModKick',
+		describeRoute({
+			tags: ['Moderation'],
+			summary: 'Kick one player out of a room instance, with a reason',
+			description:
+				'Ejects `PlayerId` from the live room instance `GameSessionId` (a `roomInstanceId`). ' +
+				'Form-encoded, unlike `instantKick`’s JSON; `Reason` is optional free text shown to ' +
+				'the kicked player in the kick message.\n\n' +
+				'Gated to the instance’s room: its creator or a co-owner, or any account whose token ' +
+				'carries the `moderator` / `developer` role. A room Moderator (20) or Host is NOT ' +
+				'enough here. Anyone else with a valid token gets a 403.\n\n' +
+				'The player must be standing in **that** instance — their live `presence` row must ' +
+				'name it. Otherwise nothing happens and the call answers `success: false`, so an ' +
+				'account id cannot reach into a session in another room, or another instance of this ' +
+				'one. The caller need not be in the instance themselves. The caller cannot kick ' +
+				'themselves, and nobody can kick the room’s owner or a co-owner.\n\n' +
+				'A kick deletes the player’s presence row (they read offline at once and the instance ' +
+				'frees a slot, its fullness recomputed) and sends them an EPHEMERAL `ModerationKick` ' +
+				'frame (id 22) with `IsBan: false` — nothing stops them rejoining. `IsHostKick` is ' +
+				'true when the caller runs the room, false for a staff account acting in a room it ' +
+				'does not.\n\n' +
+				'Answers the lowercase `{ success, error }` envelope; the shape is unverified against ' +
+				'the real service.',
+			security: AUTHED,
+			requestBody: form(RoomModKickRequest, 'The session, the player and a reason'),
+			responses: {
+				200: json(
+					SuccessErrorEnvelope,
+					'`{ success: true, error: "" }`, or `success: false` when the player cannot be kicked'
+				),
+				400: json(SuccessErrorEnvelope, 'No `GameSessionId` or `PlayerId`'),
+				401: UNAUTHORIZED_RESPONSE,
+				403: json(SuccessErrorEnvelope, 'The caller neither runs the room nor holds a staff role'),
+				404: json(SuccessErrorEnvelope, 'No such game session'),
+			},
+		}),
+		async (c) => {
+			const moderatorId = await authedId(c)
+			if (moderatorId === null) return unauthorized(c)
+
+			const body = await c.req.parseBody().catch(() => ({}) as Record<string, unknown>)
+			const gameSessionId = asInt(formField(body, c, 'GameSessionId'))
+			if (gameSessionId === null) {
+				return c.json({ success: false, error: 'GameSessionId is required' }, 400)
+			}
+			const playerId = asInt(formField(body, c, 'PlayerId'))
+			if (playerId === null) return c.json({ success: false, error: 'PlayerId is required' }, 400)
+			const reason = formField(body, c, 'Reason')?.trim() ?? ''
+
+			// The instance names the room, and the room carries the roles this is gated on.
+			const instance = await getStoredRoomInstance(c.env.DB, gameSessionId)
+			const room = instance && (await getRoomById(c.env.DB, instance.roomId))
+			if (!room) return c.json({ success: false, error: 'This game session does not exist!' }, 404)
+
+			// The room's own owners first; the token's roles are only read when that fails.
+			const runsRoom = canManageRoom(room, moderatorId)
+			if (!runsRoom) {
+				const roles = await authedRoles(c)
+				if (!roles?.some((role) => MODERATOR_ROLES.has(role))) {
+					return c.json({ success: false, error: 'Forbidden' }, 403)
+				}
+			}
+
+			if (playerId === moderatorId) {
+				return c.json({ success: false, error: 'You cannot kick yourself!' })
+			}
+			// Otherwise a co-owner, or a staffer, could throw the room's owner out of it.
+			if (canManageRoom(room, playerId)) {
+				return c.json({ success: false, error: 'You cannot kick an owner of this room!' })
+			}
+
+			// The cross-room guard: their LIVE presence must name this exact instance. Offline,
+			// expired, in another room, or in another instance of this room are all "not here".
+			const presence = await getPresence<{ roomInstanceId?: number }>(c.env.DB, playerId)
+			if (presence?.roomInstance?.roomInstanceId !== gameSessionId) {
+				return c.json({ success: false, error: 'That player is not in this game session!' })
+			}
+
+			await deletePresence(c.env.DB, playerId)
+			await refreshInstanceFullness(c.env.DB, gameSessionId)
+			const roomName = typeof room.Name === 'string' ? room.Name : 'this room'
+			await pushInstantKick(c, [playerId], gameSessionId, roomName, moderatorId, {
+				reason,
+				isHostKick: runsRoom,
+			})
+
+			return c.json({ success: true, error: '' })
+		}
+	)
+
 	// A warning handed down by a moderator — the staff-side counterpart to a report.
 	// Gated on the `moderator` role in the token, not just a valid one.
 	.post(

apps/api/src/test/integration/api.test.ts

@@ -103,7 +103,8 @@ const TEST_ROOMS = [
 	},
 	{
 		// The instant kick's room. Owned by account 42 (the default test token); 43 holds
-		// Moderator (20) and 44 only Host (10) — the tier just below that gate.
+		// Moderator (20) and 44 only Host (10) — the tier just below that gate. 45 is a
+		// CoOwner (30), for `roomModKick`, which is gated on owners rather than moderators.
 		RoomId: 4,
 		Name: 'KickRoom',
 		IsDorm: false,
@@ -112,6 +113,7 @@ const TEST_ROOMS = [
 		Roles: [
 			{ AccountId: 43, Role: 20, LastChangedByAccountId: null, InvitedRole: 0 },
 			{ AccountId: 44, Role: 10, LastChangedByAccountId: null, InvitedRole: 0 },
+			{ AccountId: 45, Role: 30, LastChangedByAccountId: null, InvitedRole: 0 },
 		],
 	},
 ]
@@ -4688,6 +4690,215 @@ describe('instant kick', () => {
 	})
 })
 
+describe('room mod kick', () => {
+	// A session of KickRoom (room 4, owned by 42, co-owned by 45), a second session of the
+	// same room, and a session of RecCenter (room 2, owned by 1) — somebody else's room.
+	const SESSION = 1074859
+	const SAME_ROOM_SESSION = 1074860
+	const OTHER_ROOM_SESSION = 1074861
+
+	const hub = () => env.RECFLARE_NOTIFICATIONS_HUB.getByName('global')
+
+	const seedInstance = async (
+		roomInstanceId: number,
+		roomId: number,
+		maxCapacity = 0,
+		isFull = false
+	) =>
+		env.DB.prepare('INSERT OR REPLACE INTO room_instance (data) VALUES (?1)')
+			.bind(
+				JSON.stringify({
+					roomInstanceId,
+					ownerAccountId: 42,
+					roomId,
+					subRoomId: roomId,
+					maxCapacity,
+					isFull,
+					gameVersion: GAME_VERSION,
+					createdAt: new Date().toISOString(),
+				})
+			)
+			.run()
+
+	const standIn = async (accountId: number, roomInstanceId: number, roomId = 4) =>
+		env.DB.prepare('INSERT OR REPLACE INTO presence (data) VALUES (?1)')
+			.bind(
+				JSON.stringify({
+					accountId,
+					roomInstance: { roomInstanceId, roomId },
+					expiresAt: Math.floor(Date.now() / 1000) + PRESENCE_TTL_SECONDS,
+				})
+			)
+			.run()
+
+	const isPresent = async (accountId: number) =>
+		(await env.DB.prepare('SELECT COUNT(*) AS n FROM presence WHERE account_id = ?1')
+			.bind(accountId)
+			.first<{ n: number }>())!.n === 1
+
+	// The client's form body.
+	const modKick = async (fields: Record<string, string>, sub = '42', roles?: string[]) =>
+		exports.default.fetch(`${ORIGIN}/api/PlayerReporting/v1/roomModKick`, {
+			method: 'POST',
+			headers: {
+				...(await bearer(sub, roles)),
+				'Content-Type': 'application/x-www-form-urlencoded',
+			},
+			body: new URLSearchParams(fields).toString(),
+		})
+
+	const frames = async () =>
+		(await (await hub().fetch('http://do/all')).json()) as Array<{
+			playerIds?: number[]
+			ephemeral?: boolean
+			data: Record<string, unknown>
+		}>
+
+	test('the room’s owner kicks a player out of the session they are in, with a reason', async () => {
+		await hub().fetch('http://do/all', { method: 'DELETE' })
+		// A full one-seat instance that 205 is filling.
+		await seedInstance(SESSION, 4, 1, true)
+		await standIn(205, SESSION)
+
+		// The client's body, verbatim.
+		const res = await modKick({ PlayerId: '205', GameSessionId: String(SESSION), Reason: 'test' })
+		expect(res.status).toBe(200)
+		expect(await res.json()).toEqual({ success: true, error: '' })
+
+		expect(await isPresent(205)).toBe(false)
+		const full = await env.DB.prepare('SELECT is_full AS f FROM room_instance WHERE id = ?1')
+			.bind(SESSION)
+			.first<{ f: number }>()
+		expect(full!.f).toBe(0)
+
+		expect(await frames()).toEqual([
+			expect.objectContaining({
+				playerIds: [205],
+				ephemeral: true,
+				data: expect.objectContaining({
+					GameSessionId: SESSION,
+					IsHostKick: true,
+					IsBan: false,
+					PlayerIdReporter: 42,
+					Message: 'You have been kicked from KickRoom. Reason: test',
+				}),
+			}),
+		])
+	})
+
+	// The whole reason for the presence check: authority over one room must never reach a
+	// session somewhere else.
+	test('a player who is not standing in that exact session is not kicked', async () => {
+		await hub().fetch('http://do/all', { method: 'DELETE' })
+		await seedInstance(SESSION, 4)
+		await seedInstance(SAME_ROOM_SESSION, 4)
+		await seedInstance(OTHER_ROOM_SESSION, 2)
+
+		// In another instance of the SAME room, in a different room entirely, and offline.
+		await standIn(206, SAME_ROOM_SESSION)
+		await standIn(207, OTHER_ROOM_SESSION, 2)
+		for (const playerId of ['206', '207', '208']) {
+			const res = await modKick({ PlayerId: playerId, GameSessionId: String(SESSION) }, '42')
+			expect(res.status, playerId).toBe(200)
+			expect(await res.json(), playerId).toEqual({
+				success: false,
+				error: 'That player is not in this game session!',
+			})
+		}
+		expect(await isPresent(206)).toBe(true)
+		expect(await isPresent(207)).toBe(true)
+
+		// Naming the OTHER room's session instead doesn't help: 42 has no authority there.
+		const cross = await modKick(
+			{ PlayerId: '207', GameSessionId: String(OTHER_ROOM_SESSION) },
+			'42'
+		)
+		expect(cross.status).toBe(403)
+		expect(await isPresent(207)).toBe(true)
+		expect(await frames()).toEqual([])
+	})
+
+	test('a co-owner or a staff role may kick; a room moderator, a host and a stranger may not', async () => {
+		await seedInstance(SESSION, 4)
+
+		// 45 co-owns the room.
+		await standIn(209, SESSION)
+		expect(
+			await (await modKick({ PlayerId: '209', GameSessionId: String(SESSION) }, '45')).json()
+		).toEqual({ success: true, error: '' })
+		expect(await isPresent(209)).toBe(false)
+
+		// 999 has no role on the room but carries the staff `moderator` role — and is not the
+		// host, so the frame says so.
+		await hub().fetch('http://do/all', { method: 'DELETE' })
+		await standIn(209, SESSION)
+		const staff = await modKick({ PlayerId: '209', GameSessionId: String(SESSION) }, '999', [
+			'gameClient',
+			'moderator',
+		])
+		expect(await staff.json()).toEqual({ success: true, error: '' })
+		expect(await isPresent(209)).toBe(false)
+		expect((await frames())[0].data).toMatchObject({ IsHostKick: false, PlayerIdReporter: 999 })
+
+		// 43 is the room's Moderator (20) — enough for instantKick, not for this. 44 is a Host,
+		// 99 holds nothing.
+		await standIn(209, SESSION)
+		for (const sub of ['43', '44', '99']) {
+			const res = await modKick({ PlayerId: '209', GameSessionId: String(SESSION) }, sub)
+			expect(res.status, sub).toBe(403)
+			expect(await res.json()).toEqual({ success: false, error: 'Forbidden' })
+		}
+		expect(await isPresent(209)).toBe(true)
+
+		const anon = await exports.default.fetch(`${ORIGIN}/api/PlayerReporting/v1/roomModKick`, {
+			method: 'POST',
+			headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+			body: `PlayerId=209&GameSessionId=${SESSION}`,
+		})
+		expect(anon.status).toBe(401)
+	})
+
+	test('nobody kicks themselves or an owner of the room', async () => {
+		await seedInstance(SESSION, 4)
+		await standIn(42, SESSION)
+		await standIn(45, SESSION)
+
+		expect(
+			await (await modKick({ PlayerId: '42', GameSessionId: String(SESSION) }, '42')).json()
+		).toEqual({ success: false, error: 'You cannot kick yourself!' })
+		// A co-owner cannot throw out the owner, and staff cannot throw out a co-owner.
+		expect(
+			await (await modKick({ PlayerId: '42', GameSessionId: String(SESSION) }, '45')).json()
+		).toEqual({ success: false, error: 'You cannot kick an owner of this room!' })
+		expect(
+			await (
+				await modKick({ PlayerId: '45', GameSessionId: String(SESSION) }, '999', ['moderator'])
+			).json()
+		).toEqual({ success: false, error: 'You cannot kick an owner of this room!' })
+		expect(await isPresent(42)).toBe(true)
+		expect(await isPresent(45)).toBe(true)
+	})
+
+	test('an unknown session 404s, and the body must name a session and a player', async () => {
+		const unknown = await modKick({ PlayerId: '205', GameSessionId: '999999' })
+		expect(unknown.status).toBe(404)
+		expect(await unknown.json()).toEqual({
+			success: false,
+			error: 'This game session does not exist!',
+		})
+
+		for (const [fields, error] of [
+			[{ PlayerId: '205' }, 'GameSessionId is required'],
+			[{ PlayerId: '205', GameSessionId: 'nope' }, 'GameSessionId is required'],
+			[{ GameSessionId: String(SESSION) }, 'PlayerId is required'],
+		] as Array<[Record<string, string>, string]>) {
+			const res = await modKick(fields)
+			expect(res.status, error).toBe(400)
+			expect(await res.json()).toEqual({ success: false, error })
+		}
+	})
+})
+
 describe('vote to kick', () => {
 	// Two live sessions, so a vote called in one can be checked against a player in the
 	// other. Nothing reads `room_instance` here — the gate is presence alone.
@@ -8474,6 +8685,7 @@ describe('openapi', () => {
 			'POST /api/PlayerReporting/v1/instantKick',
 			'POST /api/PlayerReporting/v1/moderationBlockDetails',
 			'POST /api/PlayerReporting/v1/referee',
+			'POST /api/PlayerReporting/v1/roomModKick',
 			'POST /api/PlayerReporting/v3/create',
 			'POST /api/PlayerReporting/v3/voteToKick',
 			'POST /api/avatar/v1/lockeditems/bulk',

apps/auth/src/auth.app.ts

@@ -72,8 +72,8 @@ const TOKEN_SCOPE =
 	'offline_access profile rn rn.accounts rn.accounts.gc rn.api rn.chat rn.clubs rn.commerce rn.match.read rn.match.write rn.notify rn.rooms rn.storage'
 
 /**
- * The `error_description` a grant is refused with when the caller's account is not itself
- * banned but shares an identity with one that is (see bans-db's linked arms). A fixed
+ * The `error_description` a SIGNUP is refused with when it shares an identity with a banned
+ * account (see bans-db's linked arms). A fixed
  * sentence, because `www`'s shared auth-messages table keys on this exact string to put a
  * real sentence in front of a player — anything varying would fall through to the generic
  * "you could not be signed in". Keep the two in sync. Deliberately vague: the account
@@ -81,7 +81,9 @@ const TOKEN_SCOPE =
  * account is banned" would be a lie, and naming the account we matched them to would hand
  * out somebody else's moderation record.
  *
- * A DIRECTLY banned account is not refused here at all — see the token grant.
+ * Only `create_account` is refused this way. SIGNING IN is never refused for a ban, its own
+ * or a linked one — see the token grant: the client needs a token to reach the block screen,
+ * and `match` is what holds a blocked player to their dorm.
  */
 const BLOCKED_DESCRIPTION = 'this device or network is blocked'
 
@@ -651,22 +653,25 @@ const app = new Hono<App>()
 				'the `rn.privilege` CLAIM (`BanVChat`, `BanRmChat`) — scope-shaped name, but the',
 				'client reads it as a claim beside `role`, and it is absent for everyone else.',
 				'',
-				'**Bans.** A BANNED account still gets a token — every grant, including a refresh.',
+				'**Bans.** A BLOCKED account still gets a token — every grant, including a refresh,',
+				'and whether the ban is its own or reaches it through the evasion arms.',
 				'A ban is a `report` row with `banned` set (the `api` worker owns that table); it',
 				'lifts on its own when `ban_expires` passes, and never if that is null. The token',
 				'is what lets the client reach `api`’s `/api/PlayerReporting/v1/moderationBlockDetails`',
 				'and show the player the block screen that explains the ban; the ban itself is',
-				'enforced by `match`, which refuses every matchmake for a banned player, so a token',
-				'gets them as far as that screen and no further.',
+				'enforced by `match`, which refuses every matchmake but the caller’s own dorm, so a',
+				'token gets them as far as that screen and no further.',
 				'',
-				'What IS refused here (`invalid_grant`) is ban EVASION: an account that shares a',
-				'PROVEN platform identity (a `platform_account` link) or an IP (`signupIp`/',
-				'`lastLoginIp`, or the address this request came from) with a banned one, and a',
-				'`create_account` carrying either, which is refused BEFORE it mints anything. Such',
-				'an account has no ban of its own for the block screen to describe, so there is',
-				'nothing to let it in for. Those two arms are the operator’s `BAN_EVASION_MATCH`',
-				'knob (`ip`, `platform`, or `off`). The description is deliberately vague — the',
-				'account refused may belong to a housemate of the banned player rather than to them.',
+				'Ban EVASION — an account sharing a PROVEN platform identity (a `platform_account`',
+				'link) or an IP (`signupIp`/`lastLoginIp`, or the address this request came from)',
+				'with a banned one — signs in the same way, and is stopped at matchmaking like any',
+				'other blocked account. Those two arms are the operator’s `BAN_EVASION_MATCH` knob',
+				'(`ip`, `platform`, or `off`).',
+				'',
+				'What IS refused here (`invalid_grant`) is a `create_account` carrying either link,',
+				'refused BEFORE it mints anything: making a NEW account to evade with is a different',
+				'act from signing into one. The description is deliberately vague — the signup',
+				'refused may belong to a housemate of the banned player rather than to them.',
 			].join('\n'),
 			requestBody: form(
 				TokenRequest,
@@ -1033,33 +1038,36 @@ const app = new Hono<App>()
 				await setLoginContext(c.env.DB, resolvedId, { deviceId, deviceClass, ip: clientIp })
 			}
 
-			// A DIRECTLY banned account still gets its token. The client needs one to reach
-			// `api`'s moderationBlockDetails, which is where the player is TOLD they are banned
-			// (category, time left, "Rule violation") — refused here, they would only ever see
-			// a failed sign-in. The ban is enforced by matchmaking instead, which refuses every
-			// matchmake for a banned player, so the token gets them as far as the block screen
-			// and no further. Logged, so the operator can see a banned player signing in.
+			// EVERY account gets its token, banned or not — a ban of its own, or a link to
+			// somebody else's through the evasion arms. The client needs one to reach `api`'s
+			// moderationBlockDetails, which is where a banned player is TOLD they are banned
+			// (category, time left, "Rule violation"); refused here they would only ever see a
+			// sign-in that fails, with nothing saying why. The ban is enforced by `match`, which
+			// refuses every matchmake but the caller's own dorm, so a token gets them as far as
+			// the block screen and no further.
 			//
-			// Ban EVASION is still refused here: an account that merely shares a device or
-			// network with a banned one has no ban of its own for that screen to describe, so
-			// there is nothing to let it in for — and letting it in is exactly what the evader
-			// wants. Checked once here, after the grant has resolved an account, so it covers
-			// every grant: password, cached_login and a refresh_token redeemed by a client that
-			// has been running since before the ban. Deliberately AFTER the credential checks —
-			// a wrong password is still "invalid account_id or password", so this can't be
-			// used to probe whether an account exists or is banned without knowing it.
+			// That includes ban EVASION, which this used to refuse. An evader signing in lands
+			// in their dorm and can enter no room — the same place the ban leaves them — and
+			// refusing the token instead only ever produced a client stuck on a failed login.
+			// `create_account` is still refused before it mints anything (above): that is making
+			// a NEW account to evade with, which is a different act from signing into one.
+			//
+			// Logged either way, and the arm is logged with it: "banned" and "shares a network
+			// with somebody banned" are very different things to be reading in a log.
+			//
+			// Deliberately AFTER the credential checks — a wrong password is still "invalid
+			// account_id or password", so this can't be used to probe whether an account exists
+			// or is banned without knowing it.
 			//
 			// The request's own IP and proven identity are passed alongside the account, so a
-			// ban also reaches an old, clean account logged into from the banned player's
-			// device or network — the stored ips alone would only catch that on the SECOND
-			// login. create_account was already refused before it minted anything (above);
-			// this still runs for it, so a signup that raced one is refused too.
+			// ban also reaches an old, clean account logged into from the banned player's device
+			// or network — the stored ips alone would only catch that on the SECOND login.
 			const ban = await resolveBan(c.env.DB, Number(accountId), {
 				identity: { ip: clientIp, platform: verifiedPlatform, platformId: verifiedPlatformId },
 				arms: banEvasionMatch(c.env.BAN_EVASION_MATCH),
 			})
-			if (ban && ban.via !== 'account') {
-				logger.info('token refused: ban evasion', {
+			if (ban) {
+				logger.info('token issued to a blocked account', {
 					accountId,
 					grantType,
 					via: ban.via,
@@ -1067,15 +1075,6 @@ const app = new Hono<App>()
 					reportId: ban.ban.id,
 					banExpires: ban.ban.ban_expires,
 				})
-				return c.json({ error: 'invalid_grant', error_description: BLOCKED_DESCRIPTION }, 400)
-			}
-			if (ban) {
-				logger.info('token issued to banned account', {
-					accountId,
-					grantType,
-					reportId: ban.ban.id,
-					banExpires: ban.ban.ban_expires,
-				})
 			}
 
 			// Never sign with an empty key. An empty JWT_SECRET (misconfigured/missing

apps/auth/src/test/integration/api.test.ts

@@ -1662,12 +1662,12 @@ describe('banned accounts', () => {
 	})
 })
 
-// The ban follows the player past the account it was written on: a login from an account
-// that shares a proven platform identity or an IP with a banned one is refused, and a
-// signup carrying either is refused before it mints anything. Unlike the banned account
-// itself, such an account has no ban of its own for the block screen to describe, so
-// there is nothing to let it in for. See the api worker's bans-db.ts for the arms and
-// the BAN_EVASION_MATCH knob.
+// The ban follows the player past the account it was written on. SIGNING IN is not where
+// that is enforced: a linked account gets its token like any other, and `match` holds it to
+// its own dorm — refusing the token only ever left the client stuck on a failed login. What
+// IS refused here is a SIGNUP carrying either link, before it mints anything: making a new
+// account to evade with is a different act from signing into one. See the api worker's
+// bans-db.ts for the arms and the BAN_EVASION_MATCH knob.
 describe('ban evasion at the token endpoint', () => {
 	/** Seed a loginable account carrying the IPs it signed up / last logged in from. */
 	const account = async (id: number, name: string, ips: Record<string, string> = {}) => {
@@ -1686,38 +1686,38 @@ describe('ban evasion at the token endpoint', () => {
 	const login = (id: number, ip?: string) =>
 		postToken(`account_id=${id}&password=${LOGIN_PASSWORD}`, ip)
 
-	test('an account sharing a banned account’s platform identity cannot log in', async () => {
+	test('an account sharing a banned account’s platform identity still signs in', async () => {
 		await account(6301, 'EvaderOne')
 		await linkPlatformIdentity(env.DB, 6301, 0, 'steam-tokenevader')
 		await banAccount(6301)
 		await account(6302, 'EvaderTwo')
 		await linkPlatformIdentity(env.DB, 6302, 0, 'steam-tokenevader')
 
+		// A token, like anyone else: the client has to load in before it can be told anything,
+		// and `match` is what keeps this account out of every room but its dorm.
 		const res = await login(6302)
-		expect(res.status).toBe(400)
-		// A vaguer sentence than a direct ban: this account may belong to somebody else.
-		expect(res.json.error_description).toBe('this device or network is blocked')
+		expect(res.status).toBe(200)
+		expect(decodePayload(res.json.access_token as string).sub).toBe('6302')
 	})
 
-	test('an account sharing a banned account’s IP cannot log in', async () => {
+	test('an account sharing a banned account’s IP still signs in', async () => {
 		await account(6303, 'SameHouseBanned', { signupIp: '203.0.113.30' })
 		await banAccount(6303)
 		await account(6304, 'SameHouseClean', { signupIp: '203.0.113.30' })
 
-		const res = await login(6304)
-		expect(res.status).toBe(400)
-		expect(res.json.error_description).toBe('this device or network is blocked')
+		expect((await login(6304)).status).toBe(200)
 	})
 
-	// The address the request arrives from counts, so an account that never logged in
-	// from the banned network before is caught on the first attempt rather than the second.
-	test('the request’s own IP is matched even when the account has none stored', async () => {
+	// The address the request arrives from counts, so a SIGNUP from the banned network is
+	// caught on the first attempt rather than the second.
+	test('the request’s own IP is matched at signup even when the account has none stored', async () => {
 		await account(6305, 'BannedAtHome', { signupIp: '203.0.113.31' })
 		await banAccount(6305)
 		await account(6306, 'CleanElsewhere')
 
-		expect((await login(6306, '203.0.113.31')).status).toBe(400)
-		// The same account from any other network signs in normally.
+		expect((await postToken('grant_type=create_account', '203.0.113.31')).status).toBe(400)
+		// Signing in from that same network is not refused — only minting a new account is.
+		expect((await login(6306, '203.0.113.31')).status).toBe(200)
 		expect((await login(6306, '198.51.100.31')).status).toBe(200)
 	})
 
@@ -1746,7 +1746,8 @@ describe('ban evasion at the token endpoint', () => {
 		expect(res.status).toBe(200)
 	})
 
-	// The knob an operator reaches for when the IP arm locks out real players.
+	// The knob an operator reaches for when the IP arm locks out real players. It governs the
+	// linked arms wherever they are applied — at signup here, and at every matchmake in `match`.
 	test('BAN_EVASION_MATCH=platform drops the IP arm but keeps the platform one', async () => {
 		const original = env.BAN_EVASION_MATCH
 		await account(6320, 'KnobBanned', { signupIp: '203.0.113.50' })
@@ -1758,16 +1759,22 @@ describe('ban evasion at the token endpoint', () => {
 
 		try {
 			env.BAN_EVASION_MATCH = 'platform'
-			expect((await login(6321)).status).toBe(200)
-			expect((await login(6322)).status).toBe(400)
-			// And signup from that network is open again.
+			// Signup from the banned IP is open again, since that arm is off...
 			expect((await postToken('grant_type=create_account', '203.0.113.50')).status).toBe(200)
+			// ...while the platform arm still refuses one from the banned headset.
+			expect(
+				(await postToken('grant_type=create_account&platform=0&platform_id=steam-knobevader'))
+					.status
+			).toBe(400)
 
-			env.BAN_EVASION_MATCH = 'off'
-			expect((await login(6322)).status).toBe(200)
-			// The banned account itself signs in whatever the knob says — its ban is
-			// enforced at matchmake, and the knob only governs the linked arms.
-			expect((await login(6320)).status).toBe(200)
+			// Signing in is not what the knob gates: every one of these gets a token whatever it
+			// says — the housemate, the evader, and the banned account itself.
+			for (const arms of ['platform', 'off']) {
+				env.BAN_EVASION_MATCH = arms
+				for (const id of [6320, 6321, 6322]) {
+					expect((await login(id)).status, `${arms}/${id}`).toBe(200)
+				}
+			}
 		} finally {
 			env.BAN_EVASION_MATCH = original
 		}

apps/match/src/context.ts

@@ -91,7 +91,15 @@ export type Env = SharedHonoEnv & {
 }
 
 /** Variables can be extended */
-export type Variables = SharedHonoVariables
+export type Variables = SharedHonoVariables & {
+	/**
+	 * Set by the `/matchmake/*` ban gate when it lets a BANNED account through to its own
+	 * dorm. Only `/matchmake/dorm` and `/matchmake/none` are let through, and `none` reads
+	 * this to answer the dorm rather than whatever instance the caller's presence names —
+	 * which for a stale row is a public room the ban must keep them out of.
+	 */
+	bannedToDorm?: boolean
+}
 
 export interface App extends HonoApp {
 	Bindings: Env

apps/match/src/match.app.ts

@@ -1527,6 +1527,23 @@ async function playerDormInstance(c: Context<App>, accountId: number): Promise<R
 	return roomInstanceFromRoom(c.env, room, true, instance.roomInstanceId, instance.photonRoomId)
 }
 
+/**
+ * Whether a matchmake is one a BANNED account is still allowed: the ones that can only put
+ * them in their own dorm.
+ *
+ * `/matchmake/dorm` resolves the caller's dorm and nothing else. `/matchmake/none` normally
+ * answers whatever instance their presence names, falling back to the dorm — so it is allowed
+ * only because the handler sends a banned caller to the dorm outright (see `bannedToDorm`).
+ * Both are in the list because which one the client calls on load-in depends on the build, and
+ * a banned player who cannot complete either never reaches the screen telling them they are
+ * banned.
+ *
+ * Matched on the path rather than the route, because the check runs in middleware, before Hono
+ * has picked one. A trailing slash is accepted — the client sends both spellings elsewhere —
+ * and nothing else is: `/matchmake/dormitory` must not read as the dorm.
+ */
+const isDormMatchmake = (path: string): boolean => /^\/matchmake\/(dorm|none)\/?$/.test(path)
+
 const app = new Hono<App>()
 	.use(
 		'*',
@@ -1555,6 +1572,26 @@ const app = new Hono<App>()
 	// only — it's the one refusal the client renders as "you are banned" instead of a room
 	// that mysteriously fails to load, and it's what the enum offers.
 	//
+	// ONE exception: a BLOCKED player may still matchmake into their own DORM.
+	// `auth` already issues them a token, because the client has to be signed in to reach
+	// `api`'s moderationBlockDetails — the screen that tells them they are banned, for how long
+	// and why. Refused every matchmake, the client never finishes loading in and never draws
+	// that screen, so a banned player saw nothing but a game that would not start. Their dorm
+	// is private to them and reachable by nobody else, so letting them sit in it costs nothing
+	// and is where they read the ban. Everything else — every public room, club, event,
+	// instance, invite and follow — is still refused, which is the ban.
+	//
+	// Only the two load-in calls, `/matchmake/dorm` and `/matchmake/none` — which one the
+	// client makes depends on the build. `dorm` resolves the CALLER'S dorm and nothing else;
+	// `none` would otherwise hand back whatever instance their presence names, so for a banned
+	// caller its handler answers the dorm outright rather than trusting a stale row.
+	//
+	// Ban EVASION gets the dorm too. `auth` signs those accounts in like any other, so refusing
+	// them the dorm would leave the client stuck on load-in — the exact failure this exception
+	// exists to fix — and they are held to it by the same gate. They see no block screen (that
+	// describes the caller's OWN ban, and they have none), but a player sitting in their dorm
+	// unable to enter any room is where a ban leaves them either way.
+	//
 	// Unauthenticated requests fall through untouched: the route's own `authedId` answers
 	// 401, which mustn't turn into "banned" just because the token was missing.
 	.use('/matchmake/*', async (c, next) => {
@@ -1564,7 +1601,7 @@ const app = new Hono<App>()
 				identity: { ip: c.req.header('cf-connecting-ip') },
 				arms: banEvasionMatch(c.env.BAN_EVASION_MATCH),
 			})
-			if (match) {
+			if (match && !isDormMatchmake(c.req.path)) {
 				logger.info('matchmake refused: player banned', {
 					accountId: id,
 					via: match.via,
@@ -1573,6 +1610,16 @@ const app = new Hono<App>()
 				})
 				return matchmakeResult(c, BANNED_FROM_ROOM, null)
 			}
+			if (match) {
+				// Tells `/matchmake/none` to answer the dorm rather than the caller's presence.
+				c.set('bannedToDorm', true)
+				logger.info('blocked player allowed into their own dorm', {
+					accountId: id,
+					via: match.via,
+					reportId: match.ban.id,
+					banExpires: match.ban.ban_expires,
+				})
+			}
 		}
 		await next()
 	})
@@ -2763,7 +2810,10 @@ const app = new Hono<App>()
 			const id = await authedId(c)
 			if (id === null) return unauthorized(c)
 
-			const presence = await getPresence<RoomInstance>(c.env.DB, id)
+			// A BANNED caller gets their dorm whatever their presence says. The ban gate let them
+			// this far so the client can finish loading in and draw the block screen; answering
+			// the instance a stale presence row names would walk them back into a public room.
+			const presence = c.get('bannedToDorm') ? null : await getPresence<RoomInstance>(c.env.DB, id)
 			const current = presence?.roomInstance ?? (await playerDormInstance(c, id))
 			await enterRoom(c, id, current)
 			return matchmakeResult(c, 0, current)

apps/match/src/test/integration/api.test.ts

@@ -3349,14 +3349,13 @@ describe('account bans', () => {
 			headers: await bearer(player),
 		})
 
-	test('every matchmake route is refused for a banned account', async () => {
+	test('every matchmake route but the load-in ones is refused for a banned account', async () => {
 		await banAccount(6001)
 		// One live instance of room 2 and one club membership, so each route would
 		// otherwise have somewhere to put them.
 		for (const path of [
 			'/matchmake/room/2',
 			'/matchmake/room/77/34',
-			'/matchmake/dorm',
 			'/matchmake/club/4',
 			'/matchmake/player/9701',
 			'/matchmake/instance/1',
@@ -3367,6 +3366,94 @@ describe('account bans', () => {
 		}
 	})
 
+	// The client has to finish loading in to draw the block screen that tells the player they
+	// are banned — `auth` issues them a token for exactly that reason. Refused their own dorm
+	// too, they never get that far and just see a game that will not start.
+	test('a banned account may still matchmake into its own dorm', async () => {
+		await banAccount(6008)
+		const res = await matchmake('/matchmake/dorm', '6008')
+		expect(res.status).toBe(200)
+		const body = (await res.json()) as {
+			errorCode: number
+			roomInstance: { roomInstanceId: number; roomId: number } | null
+		}
+		expect(body.errorCode).toBe(0)
+		expect(body.roomInstance).not.toBeNull()
+
+		// Their OWN dorm, the same one every time — not a room anyone else can reach.
+		const again = (await (await matchmake('/matchmake/dorm', '6008')).json()) as {
+			roomInstance: { roomInstanceId: number } | null
+		}
+		expect(again.roomInstance?.roomInstanceId).toBe(body.roomInstance!.roomInstanceId)
+
+		// And it is only the dorm — the ban is otherwise untouched.
+		expect(await (await matchmake('/matchmake/room/2', '6008')).json()).toEqual(refused(55))
+	})
+
+	// `/matchmake/none` is the other load-in call, and which one the client makes depends on
+	// the build. It normally answers the instance the caller's presence names — so for a banned
+	// caller it must answer the DORM instead, or a stale presence row walks them straight back
+	// into the public room they were standing in.
+	test('a banned account’s /matchmake/none answers the dorm, not their stale presence', async () => {
+		await banAccount(6011)
+		// Standing in a live instance of room 2, the way a player banned mid-session is.
+		const joined = (await (await matchmake('/matchmake/room/2', '9701')).json()) as {
+			roomInstance: { roomInstanceId: number; roomId: number }
+		}
+		await env.DB.prepare('INSERT OR REPLACE INTO presence (data) VALUES (?1)')
+			.bind(
+				JSON.stringify({
+					accountId: 6011,
+					roomInstance: joined.roomInstance,
+					expiresAt: Math.floor(Date.now() / 1000) + 900,
+				})
+			)
+			.run()
+
+		const body = (await (await matchmake('/matchmake/none', '6011')).json()) as {
+			errorCode: number
+			roomInstance: { roomInstanceId: number; roomId: number } | null
+		}
+		expect(body.errorCode).toBe(0)
+		expect(body.roomInstance).not.toBeNull()
+		// NOT the room they were standing in.
+		expect(body.roomInstance?.roomInstanceId).not.toBe(joined.roomInstance.roomInstanceId)
+		expect(body.roomInstance?.roomId).not.toBe(joined.roomInstance.roomId)
+		// It is their dorm — the same instance `/matchmake/dorm` answers.
+		const dorm = (await (await matchmake('/matchmake/dorm', '6011')).json()) as {
+			roomInstance: { roomInstanceId: number } | null
+		}
+		expect(dorm.roomInstance?.roomInstanceId).toBe(body.roomInstance?.roomInstanceId)
+	})
+
+	// An evader signs in like anyone else (`auth` issues them a token), so they must be able to
+	// finish loading in — otherwise the client hangs on a failed login, which is the failure the
+	// dorm exception exists to fix. They are held to the dorm by the same gate.
+	test('an account caught by ban evasion gets the dorm and nothing else', async () => {
+		const linkTo = async (id: number, platformId: string) =>
+			env.DB.prepare(
+				`INSERT OR IGNORE INTO platform_account (account_id, platform, platform_id, linked_at)
+				 VALUES (?1, 0, ?2, ?3)`
+			)
+				.bind(id, platformId, new Date().toISOString())
+				.run()
+		await linkTo(6009, 'steam-dorm-evader')
+		await banAccount(6009)
+		// The replacement account: different id, same headset.
+		await linkTo(6010, 'steam-dorm-evader')
+
+		const dorm = (await (await matchmake('/matchmake/dorm', '6010')).json()) as {
+			errorCode: number
+			roomInstance: unknown
+		}
+		expect(dorm.errorCode).toBe(0)
+		expect(dorm.roomInstance).not.toBeNull()
+
+		// Every room is still closed to them — which is the ban.
+		expect(await (await matchmake('/matchmake/room/2', '6010')).json()).toEqual(refused(55))
+		expect(await (await matchmake('/matchmake/club/4', '6010')).json()).toEqual(refused(55))
+	})
+
 	// The refusal is the ban's, not the room's: nothing is entered, so no presence is
 	// written and the player stays where they were (nowhere).
 	test('a refused matchmake leaves no presence behind', async () => {

apps/rooms/migrations/0018_room_ban_reason_expiry.sql

@@ -0,0 +1,13 @@
+-- A room ban can now carry a reason and lapse on its own.
+--
+-- Generated from packages/domain/src/rooms-db.ts (ROOM_SCHEMA_DDL) — keep in sync.
+--
+-- `reason` is the issuer's free text, NULL when none was given. `expires_at` is ISO-8601 UTC
+-- (the same format `created_at` is written in, so the two compare as strings), and NULL is a
+-- permanent ban — which is what every row written before this migration is, so no backfill.
+--
+-- A lapsed row is not deleted when it lapses: nothing runs at that moment. Every read that
+-- asks whether a player is banned filters on `expires_at IS NULL OR expires_at > now` instead,
+-- and the next ban or unban of that player overwrites or removes the stale row.
+ALTER TABLE room_ban ADD COLUMN reason TEXT;
+ALTER TABLE room_ban ADD COLUMN expires_at TEXT;

apps/rooms/migrations/0019_room_ban_history.sql

@@ -0,0 +1,30 @@
+-- Room bans that have ENDED, so `GET /rooms/{roomId}/bans/history` has a past to report.
+--
+-- Generated from packages/domain/src/rooms-db.ts (ROOM_SCHEMA_DDL) — keep in sync.
+--
+-- `room_ban` holds only the ban in force: one row per (room, player), DELETEd on unban and
+-- overwritten on re-ban. Everything that asks "is this player banned" — `match` among them —
+-- reads that table and is unchanged. This table is append-only and written at the moment a
+-- ban stops being the live one:
+--
+--   * lifted by an unban   -> status 2 (Lifted),  ended_at = the unban, unbanned_by_account_id set
+--   * lapsed, then cleared -> status 1 (Elapsed), ended_at = its expiry, unbanned_by_account_id NULL
+--     (by an unban of the stale row, or by a new ban replacing it)
+--
+-- A ban still in force that is re-issued is AMENDED in place, not ended, so it writes nothing.
+-- Nothing is backfilled: bans lifted before this migration were deleted and left no record.
+CREATE TABLE IF NOT EXISTS room_ban_history (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  room_id INTEGER NOT NULL,
+  banned_player_id INTEGER NOT NULL,
+  ban_mask INTEGER NOT NULL DEFAULT 0,
+  banned_by_account_id INTEGER NOT NULL,
+  created_at TEXT NOT NULL,
+  reason TEXT,
+  expires_at TEXT,
+  status INTEGER NOT NULL,
+  ended_at TEXT,
+  unbanned_by_account_id INTEGER
+  );
+CREATE INDEX IF NOT EXISTS idx_room_ban_history_player
+  ON room_ban_history (room_id, banned_player_id);

apps/rooms/src/openapi.ts

@@ -440,6 +440,39 @@ export const IsBannedPascalEnvelope = z.object({
 	error_id: z.string().nullable().describe('Null. Lowercase, unlike its three siblings'),
 })
 
+/**
+ * One ban in `GET /rooms/{roomId}/bans/history`. Seven keys, in the client's order — derived
+ * members before base ones, so `AccountId` is fifth.
+ */
+export const RoomBanRecordDto = z.object({
+	Status: z.int().describe('0 Active · 1 Elapsed (ran out) · 2 Lifted (unbanned early)'),
+	UnbannedByAccountId: z.int().nullable().describe('Who lifted it; null unless Lifted'),
+	BanEndTime: z
+		.string()
+		.nullable()
+		.describe(
+			'ISO 8601 UTC. Active: scheduled expiry, null when permanent. Elapsed: its expiry. Lifted: when it was lifted'
+		),
+	Reason: z.string().describe('`""` when no reason was given — never null'),
+	AccountId: z.int().describe('The banned player'),
+	BannedByAccountId: z.int().nullable().describe('Who issued the ban'),
+	BanStartTime: z.string().describe('ISO 8601 UTC, when the ban was issued'),
+})
+
+/** `GET /rooms/{roomId}/bans/history` — the PascalCase envelope, `error_id` lowercase. */
+export const RoomBanHistoryEnvelope = z.object({
+	Value: z
+		.object({
+			ActiveBan: RoomBanRecordDto.nullable().describe('The ban in force, or null'),
+			PreviousBans: RoomBanRecordDto.array().describe('Every ban that has ended, newest first'),
+		})
+		.nullable()
+		.describe('Null only when `id` is missing or not a number'),
+	Success: z.boolean(),
+	Error: z.string().nullable(),
+	error_id: z.string().nullable().describe('Null. Lowercase, unlike its three siblings'),
+})
+
 /** The bare JSON string the bulk lookups answer when the id list is over the cap. */
 export const TooManyLookupIds = z
 	.string()
@@ -608,6 +641,16 @@ export const BanRequest = z.object({
 		.string()
 		.optional()
 		.describe('Stored verbatim; meaning unknown — the client sends `0`. Defaults to 0'),
+	reason: z
+		.string()
+		.optional()
+		.describe('Free text, stored on the ban and shown in the kick message'),
+	durationMinutes: z
+		.string()
+		.optional()
+		.describe(
+			'Minutes until the ban lapses. Absent, empty or `0` is permanent; anything that is not a non-negative whole number is refused'
+		),
 })
 
 /** A stored room ban — what `POST /rooms/{roomId}/bans` answers in `value`. */
@@ -617,6 +660,8 @@ export const RoomBanDto = z.object({
 	BanMask: z.int(),
 	BannedByAccountId: z.int().describe('Who issued the ban'),
 	CreatedAt: z.string(),
+	Reason: z.string().nullable().describe('Null when no reason was given'),
+	ExpiresAt: z.string().nullable().describe('ISO 8601 UTC when the ban lapses; null is permanent'),
 })
 
 /**
@@ -630,6 +675,23 @@ export const RoomBanEntryDto = z.object({
 	banStartTime: z.string().describe('ISO 8601 UTC, when the ban was issued'),
 })
 
+/** `DELETE /rooms/{roomId}/bans/bulk` — the players whose bans to lift. */
+export const UnbanBulkRequest = z.object({
+	id: z
+		.union([z.string(), z.array(z.string())])
+		.describe('Account id(s) to unban — repeated `id=` fields, or one comma-separated value'),
+	banMask: z.string().optional().describe('Sent by the client; ignored'),
+})
+
+/** What the bulk unban answers — the ban envelope, with `value` the removed bans. */
+export const RoomBansRemovedEnvelope = z.object({
+	success: z.boolean(),
+	error: z.string().describe('Empty on success'),
+	value: RoomBanDto.array()
+		.nullable()
+		.describe('The bans removed, in request order; null on a rejection'),
+})
+
 /** The envelope the ban write answers — same shape as the room writes, `value` is the ban. */
 export const RoomBanEnvelope = z.object({
 	success: z.boolean(),

apps/rooms/src/rooms.app.ts

@@ -15,6 +15,7 @@ import {
 	countRoomsByCreator,
 	createNotification,
 	createSubRoom,
+	deletePresence,
 	deleteRoom,
 	deleteRoomLeaderboard,
 	deleteSubRoom,
@@ -31,6 +32,7 @@ import {
 	getPresence,
 	getPublicRoomsByCreator,
 	getRecommendedRooms,
+	getRoomBanHistory,
 	getRoomBans,
 	getRoomById,
 	getRoomByName,
@@ -48,6 +50,7 @@ import {
 	MessageType,
 	modifySubRoom,
 	publishSubRoomSave,
+	refreshInstanceFullness,
 	removeCheer,
 	removeFavorite,
 	removeRoomRole,
@@ -124,6 +127,8 @@ import {
 	RoleRequest,
 	RoomBanEntryDto,
 	RoomBanEnvelope,
+	RoomBanHistoryEnvelope,
+	RoomBansRemovedEnvelope,
 	RoomDto,
 	RoomEnvelope,
 	RoomExperience,
@@ -151,11 +156,12 @@ import {
 	UNAUTHORIZED_EMPTY,
 	UNAUTHORIZED_ENVELOPE,
 	UNAUTHORIZED_RESPONSE,
+	UnbanBulkRequest,
 	WarningRequest,
 } from './openapi'
 
 import type { Context } from 'hono'
-import type { RoomBan, RoomPermission } from '@repo/domain'
+import type { RoomBan, RoomBanRecord, RoomPermission } from '@repo/domain'
 import type { MessageReceivedPayload } from '../../notify/src/notification-payloads'
 import type { App } from './context'
 
@@ -615,43 +621,109 @@ async function pushRoleInvite(
 const REPORT_CATEGORY_MODERATOR = -1
 
 /**
- * Eject a player from the room they're in — a `ModerationKick` push (id 22), the frame
- * the client acts on to remove someone. Sent on a ban: the row keeps them out of future
- * matchmakes, this gets them out of the instance they're in right now.
+ * Take a freshly banned player out of the room's LIVE PRESENCE, so the ban takes effect on
+ * everything that reads presence right now rather than when their row next expires. The kick
+ * push ejects their client, but until the row goes they still count toward the instance's
+ * player total (keeping a full room full), still show as standing in the room to friends, and
+ * still pass the presence-based grants — reading the room's staged saves among them.
  *
- * The payload is the client's moderation shape, camelCase, in wire order:
- * `reportCategory`, `duration`, `gameSessionId`, `isHostKick`, `message`,
- * `playerIdReporter`, `isBan`, `isVoiceModAutoban`. `duration` is 0 (a room ban has no
- * expiry — it's lifted by DELETE, not by time) and `gameSessionId` is 0 (nothing here
- * tracks one).
+ * Only when their presence puts them in THIS room. A player banned from a room they are not
+ * standing in keeps their presence: a ban here is no reason to knock them offline from wherever
+ * they actually are. The same rule the instant kick in `api` applies to its instance.
  *
- * `isHostKick` says the room's HOST ejected the player, as opposed to the room
- * majority vote-kicking them. There is no vote-kick path yet, so the only false case
- * here is a staff moderator acting in a room they don't host. `playerIdReporter` is
- * whoever caused it — the host today, and the player who started the vote once
- * vote-kicks exist (those will carry `reportCategory` 10 and `isHostKick` false).
+ * The instance they left gets its fullness recomputed, as every other presence removal does, so
+ * a room they were filling opens back up. Best-effort like the push: the ban row is already
+ * committed, and a failure here must not turn a ban that happened into an error response.
  *
- * Like {@link pushRoomUpdate}, hub failures are logged and swallowed: the ban row has
- * already committed, so a hub hiccup must not fail the request.
+ * Returns the instance they were removed from, or null when they were not standing in the
+ * room — which is what decides whether they get a kick frame at all.
+ */
+async function evictBannedPlayer(c: Context<App>, ban: RoomBan): Promise<number | null> {
+	try {
+		const instance = (await getPresence<PresenceView>(c.env.DB, ban.BannedPlayerId))?.roomInstance
+		if (instance?.roomId !== ban.RoomId) return null
+		await deletePresence(c.env.DB, ban.BannedPlayerId)
+		if (instance.roomInstanceId == null) return null
+		await refreshInstanceFullness(c.env.DB, instance.roomInstanceId)
+		return instance.roomInstanceId
+	} catch (err) {
+		logger.error('failed to clear a banned player’s presence', {
+			playerId: ban.BannedPlayerId,
+			roomId: ban.RoomId,
+			error: err instanceof Error ? err.message : String(err),
+		})
+		return null
+	}
+}
+
+/** An ISO timestamp as the client's ban record carries it: UTC, to the second. */
+function toBanTime(iso: string): string {
+	return iso.replace(/\.\d+Z$/, 'Z')
+}
+
+/**
+ * One ban as the history route serves it. Seven keys, and the ORDER is the client's: the
+ * derived members before the base ones, so `AccountId` is fifth. `Reason` is a non-nullable
+ * string on the client, so a ban issued without one is `""`, not null.
+ */
+function toBanRecordDto(ban: RoomBanRecord) {
+	return {
+		Status: ban.Status,
+		UnbannedByAccountId: ban.UnbannedByAccountId,
+		BanEndTime: ban.EndedAt === null ? null : toBanTime(ban.EndedAt),
+		Reason: ban.Reason ?? '',
+		AccountId: ban.AccountId,
+		BannedByAccountId: ban.BannedByAccountId,
+		BanStartTime: toBanTime(ban.StartedAt),
+	}
+}
+
+/**
+ * Eject a room-banned player from the instance they are standing in — a `ModerationKick`
+ * frame (id 22), the one the client acts on to leave a room. The `room_ban` row is what keeps
+ * them out afterwards: `match` refuses their matchmakes into this room with `BannedFromRoom`
+ * (55). This frame only gets them out of the session they are in right now.
+ *
+ * It must NOT look like an account ban, and it once did. `IsBan: true` on this frame is what
+ * the client's moderation screen reads as a ban from the GAME — it is exactly what the staff
+ * account ban (`www`) sends — so a room ban sent that way showed players a game-wide ban
+ * screen, and with a non-zero `duration` a timed one, when nothing but one room was closed to
+ * them. So, like `api`'s instant kick:
+ *
+ *  - `isBan` false and `duration` 0. The frame is a kick; the ban is server-side.
+ *  - EPHEMERAL, never queued. A queued frame is delivered on the player's next connect, which
+ *    would eject them from some unrelated session later, or greet them with it on login.
+ *  - Sent only when they were standing in THIS room — `gameSessionId` is the instance they were
+ *    evicted from. A player banned from a room they are not in has nothing to be ejected from
+ *    and hears nothing; they meet the ban as a refused matchmake if they try to join.
+ *
+ * The payload is the client's moderation shape, camelCase, in wire order. `isHostKick` says the
+ * room's HOST ejected them rather than a room vote-kick; the only false case today is a staff
+ * moderator acting in a room they do not host. `playerIdReporter` is whoever caused it.
+ *
+ * Best-effort: the ban row has already committed, so a hub hiccup must not fail the request.
  */
 async function pushRoomBan(
 	c: Context<App>,
 	ban: RoomBan,
+	gameSessionId: number,
 	roomName: string,
 	isHostKick: boolean
 ): Promise<void> {
 	try {
-		await c.env.RECFLARE_NOTIFICATIONS_HUB.getByName(HUB_INSTANCE).notifyPlayer(
-			ban.BannedPlayerId,
+		await c.env.RECFLARE_NOTIFICATIONS_HUB.getByName(HUB_INSTANCE).notifyPlayersEphemeral(
+			[ban.BannedPlayerId],
 			NotificationType.ModerationKick,
 			{
 				reportCategory: REPORT_CATEGORY_MODERATOR,
 				duration: 0,
-				gameSessionId: 0,
+				gameSessionId,
 				isHostKick,
-				message: `You have been banned from ${roomName}.`,
+				message: ban.Reason
+					? `You have been banned from ${roomName}. Reason: ${ban.Reason}`
+					: `You have been banned from ${roomName}.`,
 				playerIdReporter: ban.BannedByAccountId,
-				isBan: true,
+				isBan: false,
 				isVoiceModAutoban: false,
 			}
 		)
@@ -2401,7 +2473,98 @@ const app = new Hono<App>()
 		}
 	)
 
-	// Ban a player from a room (form body `id` + `banMask`). Auth-gated (401), then
+	// One player's ban history in one room (`?id=` is the player). The owner's view of
+	// whether someone is banned now and how often they have been before — so gated like the
+	// ban list: auth (401), then the room's owner/co-owner or a staff token (403).
+	//
+	// Answers the PascalCase `{ Value, Success, Error, error_id }` envelope the unprefixed
+	// isBanned uses — `error_id` lowercase among its PascalCase siblings — with `Value` exactly
+	// `{ ActiveBan, PreviousBans }`. The record's seven keys are in the client's order: the
+	// derived members (`Status`, `UnbannedByAccountId`, `BanEndTime`, `Reason`) come BEFORE the
+	// base ones (`AccountId`, `BannedByAccountId`, `BanStartTime`), which is why `AccountId`
+	// is fifth. Built key by key in that order rather than by spreading a domain object.
+	.get(
+		'/rooms/:roomId{[0-9]+}/bans/history',
+		describeRoute({
+			tags: ['Room settings'],
+			summary: 'A player’s ban history in a room',
+			description: [
+				'Whether `id` is banned from the room right now, and every ban of theirs there that has',
+				'ended. `Value` has exactly two keys: `ActiveBan` (the ban in force, or null) and',
+				'`PreviousBans` (newest first).',
+				'',
+				'Each record is seven keys in this order: `Status` (0 Active, 1 Elapsed, 2 Lifted),',
+				'`UnbannedByAccountId` (who lifted it; null unless Lifted), `BanEndTime`, `Reason`',
+				'(`""` when none was given — never null), `AccountId`, `BannedByAccountId`,',
+				'`BanStartTime`. `BanEndTime` is the scheduled expiry of an Active ban (null for a',
+				'permanent one), the expiry of an Elapsed ban, and the moment a Lifted ban was lifted.',
+				'Timestamps are ISO 8601 UTC to the second.',
+				'',
+				'A timed ban that has run out is not active: it is reported as an Elapsed previous ban.',
+				'A ban re-issued while still in force is AMENDED, not ended, so it appears once, with',
+				'its latest reason and times. History starts with this server’s ban-history migration;',
+				'bans lifted before it left no record.',
+				'',
+				'Gated like the ban list: the room’s creator or a co-owner, or an account whose token',
+				'carries the `developer` / `moderator` role. An unknown room answers an empty history.',
+				'A missing or non-numeric `id` answers `Success: false` with a null `Value`.',
+			].join('\n'),
+			security: AUTHED,
+			parameters: [
+				roomIdParam,
+				{
+					name: 'id',
+					in: 'query',
+					required: true,
+					description: 'The account whose ban history to read',
+					schema: { type: 'string', pattern: '^[0-9]+$' },
+				},
+			],
+			responses: {
+				200: json(RoomBanHistoryEnvelope, 'The player’s active ban and previous bans'),
+				401: UNAUTHORIZED_RESPONSE,
+				403: FORBIDDEN_RESPONSE,
+			},
+		}),
+		async (c) => {
+			const accountId = await authedAccountId(c)
+			if (accountId === null) return unauthorized(c)
+
+			const playerId = Number.parseInt(c.req.query('id') ?? '', 10)
+			if (Number.isNaN(playerId)) {
+				return c.json({
+					Value: null,
+					Success: false,
+					Error: 'You must provide a valid player!',
+					error_id: null,
+				})
+			}
+
+			const roomId = Number.parseInt(c.req.param('roomId'), 10)
+			const room = await getRoomById(c.env.DB, roomId)
+			// No room → no bans, the same answer the ban list gives, so this is not a way to
+			// probe which room ids exist.
+			if (room && !canManageRoom(room, accountId) && !(await isStaff(c))) {
+				return c.body(null, 403)
+			}
+			const history = room
+				? await getRoomBanHistory(c.env.DB, roomId, playerId)
+				: { active: null, previous: [] }
+
+			return c.json({
+				Value: {
+					ActiveBan: history.active ? toBanRecordDto(history.active) : null,
+					PreviousBans: history.previous.map(toBanRecordDto),
+				},
+				Success: true,
+				Error: null,
+				error_id: null,
+			})
+		}
+	)
+
+	// Ban a player from a room (form body `id` + `banMask`, optionally `reason` and
+	// `durationMinutes`). Auth-gated (401), then
 	// gated to the room's owner/co-owner OR a staff token (403). One row per
 	// (room, player) — re-banning rewrites it, so the call is idempotent.
 	.post(
@@ -2423,16 +2586,25 @@ const app = new Hono<App>()
 				'`banMask` is stored verbatim and nothing interprets it — the client sends `0` and',
 				'what it selects is not known yet. It defaults to 0 when absent.',
 				'',
-				'The BANNED player (not the caller) gets a `ModerationKick` push (id 22) — the frame',
-				'the client acts on to eject someone — so a ban takes effect immediately rather than',
-				'only at their next matchmake. `isBan` is true, `duration` 0 (a room ban has no',
-				'expiry; it is lifted by DELETE, not by time) and `reportCategory` -1 (Moderator).',
+				'`reason` is optional free text, stored on the ban and appended to the kick message.',
+				'`durationMinutes` makes the ban lapse on its own; absent, empty or `0` is permanent.',
+				'A duration that is present but not a non-negative whole number is a rejection, never',
+				'read as permanent. A lapsed ban stops counting everywhere — matchmaking, `isBanned`,',
+				'the ban list — without anyone lifting it. Re-banning REPLACES the reason and',
+				'duration and restarts the clock; it does not extend the remaining time.',
 				'',
-				'`isHostKick` means the room’s HOST ejected them rather than the room majority',
-				'vote-kicking them; with no vote-kick path yet the only false case is a staff',
-				'moderator acting in a room they do not host. `playerIdReporter` is whoever caused',
-				'it — the host today, the player who started the vote once vote-kicks exist. The hub',
-				'queues the frame if they are offline.',
+				'If the banned player’s live presence puts them in THIS room, that presence row is',
+				'deleted and the instance’s fullness recomputed, so they stop counting as standing in',
+				'the room immediately. Presence in some other room is left alone.',
+				'',
+				'A banned player standing in the room also gets a `ModerationKick` frame (id 22),',
+				'the frame the client acts on to leave, with `gameSessionId` the instance they were',
+				'removed from. It is a KICK, not a ban, as far as the client is concerned: `isBan` is',
+				'false and `duration` 0, because `isBan: true` is what the client shows as a ban from',
+				'the whole game. The ban itself is the row, enforced when `match` refuses them the room',
+				'(`BannedFromRoom`, 55). The frame is ephemeral, never queued, and a player not in the',
+				'room gets none. `isHostKick` is false only for a staff moderator acting in a room they',
+				'do not host; `playerIdReporter` is whoever issued the ban.',
 				'',
 				'Answers the same lowercase `{ success, error, value }` envelope the room writes use,',
 				'but `value` is the BAN, not the room — a ban is not part of the room the client',
@@ -2475,10 +2647,27 @@ const app = new Hono<App>()
 			// Absent or unparseable → 0, the value the client sends.
 			const banMask = Number.parseInt(str(body.banMask), 10) || 0
 
-			const ban = await banPlayerFromRoom(c.env.DB, roomId, bannedPlayerId, banMask, accountId)
-			// The banned player is told, not the caller — their client acts on the kick.
-			const roomName = typeof room.Name === 'string' ? room.Name : 'this room'
-			await pushRoomBan(c, ban, roomName, isHostKick)
+			// Absent or empty is a PERMANENT ban. A duration that is present but is not a
+			// non-negative whole number is refused rather than read as permanent: a typo turning
+			// "30 minutes" into "forever" is the one mistake here that is worse than failing.
+			const rawDuration = str(body.durationMinutes).trim()
+			const durationMinutes = rawDuration === '' ? 0 : Number(rawDuration)
+			if (!Number.isInteger(durationMinutes) || durationMinutes < 0) {
+				return banEnvelope(c, null, 'You must provide a valid ban duration!')
+			}
+
+			const ban = await banPlayerFromRoom(c.env.DB, roomId, bannedPlayerId, banMask, accountId, {
+				reason: str(body.reason),
+				durationMinutes,
+			})
+			// Out of the room's presence first, so by the time their client acts on the kick
+			// nothing server-side still counts them as standing in it. Only a player who WAS
+			// standing in the room is kicked — anyone else has nothing to be ejected from.
+			const evictedFrom = await evictBannedPlayer(c, ban)
+			if (evictedFrom !== null) {
+				const roomName = typeof room.Name === 'string' ? room.Name : 'this room'
+				await pushRoomBan(c, ban, evictedFrom, roomName, isHostKick)
+			}
 			return banEnvelope(c, ban)
 		}
 	)
@@ -2581,6 +2770,79 @@ const app = new Hono<App>()
 		}
 	)
 
+	// Lift bans in BULK (form body `id`, repeated or comma-separated, plus the `banMask` the
+	// client sends and nothing reads). Same gate as issuing one: auth-gated (401), then the
+	// room's owner/co-owner OR a staff token (403). Declared before the `/:playerId` route
+	// only for reading order — `bulk` is not a number, so the two never compete for a path.
+	.delete(
+		'/rooms/:roomId{[0-9]+}/bans/bulk',
+		describeRoute({
+			tags: ['Room settings'],
+			summary: 'Unban players from a room in bulk',
+			description: [
+				'Removes the `room_ban` row of every player named by `id`, so they can matchmake into',
+				'the room again. `id` may repeat (`id=205&id=206`) or be comma-separated; `banMask`',
+				'is accepted because the client sends it, and ignored — it described the ban, not the',
+				'unban. The body is form-encoded, on a DELETE.',
+				'',
+				'Gated exactly like issuing a ban: the room’s creator or a co-owner, or an account',
+				'whose token carries the `developer` / `moderator` role.',
+				'',
+				'Unlike the single-player DELETE, a player who is not banned is SKIPPED rather than',
+				'failing the call — one stale id in a list must not sink the rest. Only a body naming',
+				'no valid id at all is a rejection. A ban that has already lapsed counts as not banned.',
+				'',
+				'Answers the ban envelope with `value` the ARRAY of bans actually removed, in the order',
+				'asked; empty when none of the players named were banned. No notification is pushed.',
+				'This shape is unverified against the real service.',
+			].join('\n'),
+			security: AUTHED,
+			parameters: [roomIdParam],
+			requestBody: form(UnbanBulkRequest, 'The players to unban'),
+			responses: {
+				200: json(
+					RoomBansRemovedEnvelope,
+					'The removed bans, or a rejection with `success: false`'
+				),
+				401: UNAUTHORIZED_RESPONSE,
+				403: FORBIDDEN_RESPONSE,
+			},
+		}),
+		async (c) => {
+			const accountId = await authedAccountId(c)
+			if (accountId === null) return unauthorized(c)
+
+			const roomId = Number.parseInt(c.req.param('roomId'), 10)
+			const room = await getRoomById(c.env.DB, roomId)
+			if (!room) return banEnvelope(c, null, 'This room does not exist!')
+			if (!canManageRoom(room, accountId) && !(await isStaff(c))) return c.body(null, 403)
+
+			// `all: true` keeps a repeated `id` from collapsing to its last value, which would
+			// unban one player out of the list and report success.
+			const body = await c.req
+				.parseBody({ all: true })
+				.catch(() => ({}) as Record<string, string | string[] | File | File[]>)
+			const ids = [
+				...new Set(
+					[body.id]
+						.flat()
+						.filter((v): v is string => typeof v === 'string')
+						.flatMap((v) => v.split(','))
+						.map((v) => Number.parseInt(v.trim(), 10))
+						.filter((n) => !Number.isNaN(n))
+				),
+			]
+			if (ids.length === 0) return banEnvelope(c, null, 'You must provide a valid player to unban!')
+
+			const removed: RoomBan[] = []
+			for (const playerId of ids) {
+				const ban = await unbanPlayerFromRoom(c.env.DB, roomId, playerId, accountId)
+				if (ban) removed.push(ban)
+			}
+			return c.json({ success: true, error: '', value: removed })
+		}
+	)
+
 	// Lift a player's ban on a room. Same gate as issuing one: auth-gated (401), then the
 	// room's owner/co-owner OR a staff token (403).
 	.delete(
@@ -2617,7 +2879,7 @@ const app = new Hono<App>()
 			if (!canManageRoom(room, accountId) && !(await isStaff(c))) return c.body(null, 403)
 
 			const playerId = Number.parseInt(c.req.param('playerId'), 10)
-			const removed = await unbanPlayerFromRoom(c.env.DB, roomId, playerId)
+			const removed = await unbanPlayerFromRoom(c.env.DB, roomId, playerId, accountId)
 			if (!removed) return banEnvelope(c, null, 'This player is not banned from this room!')
 			return banEnvelope(c, removed)
 		}

apps/rooms/src/test/integration/api.test.ts

@@ -2507,8 +2507,154 @@ describe('rooms endpoints', () => {
 		await env.DB.prepare('DELETE FROM room_leaderboard WHERE room_id IN (2, 3)').run()
 	})
 
-	it('POST /rooms/:id/bans kicks the banned player', async () => {
-		type Sent = { playerId: number; notificationType: string | number; data: unknown }
+	it('POST /rooms/:id/bans takes a reason and a duration', async () => {
+		type Ban = { Reason: string | null; ExpiresAt: string | null; CreatedAt: string }
+		type Sent = { playerIds: number[]; data: { duration: number; isBan: boolean; message: string } }
+		const hub = () => env.RECFLARE_NOTIFICATIONS_HUB.getByName('global')
+		await hub().fetch('http://do/all', { method: 'DELETE' })
+		// Standing in the room, so there is a session to kick them out of.
+		await putInRoom(310, 2)
+
+		// The client's body, verbatim.
+		const res = await postForm(
+			'/rooms/2/bans',
+			{ banMask: '0', id: '310', reason: 'test', durationMinutes: '30' },
+			'1'
+		)
+		const body = (await envOf(res)) as unknown as { success: boolean; value: Ban }
+		expect(body).toMatchObject({ success: true, value: { BannedPlayerId: 310, Reason: 'test' } })
+		// Lapses thirty minutes after it was issued, to the second.
+		expect(Date.parse(body.value.ExpiresAt!) - Date.parse(body.value.CreatedAt)).toBe(30 * 60_000)
+
+		// The kick carries the reason in its message — but NOT the ban's length, and is not a
+		// ban frame: a duration with `isBan` is what the client shows as a timed GAME ban.
+		const [kick] = (await (await hub().fetch('http://do/all')).json()) as Sent[]
+		expect(kick.playerIds).toEqual([310])
+		expect(kick.data).toMatchObject({ duration: 0, isBan: false })
+		expect(kick.data.message).toMatch(/Reason: test$/)
+
+		// Neither field is required: no duration is a permanent ban, and it still pushes 0.
+		const permanent = (await envOf(
+			await postForm('/rooms/2/bans', { banMask: '0', id: '311' }, '1')
+		)) as unknown as { value: Ban }
+		expect(permanent.value).toMatchObject({ Reason: null, ExpiresAt: null })
+		for (const d of ['', '0']) {
+			const v = (await envOf(
+				await postForm('/rooms/2/bans', { id: '312', durationMinutes: d }, '1')
+			)) as unknown as { value: Ban }
+			expect(v.value.ExpiresAt, d).toBeNull()
+		}
+
+		// A re-ban REPLACES the duration and reason — it neither extends nor keeps the old ones.
+		const rebanned = (await envOf(
+			await postForm('/rooms/2/bans', { id: '310' }, '1')
+		)) as unknown as { value: Ban }
+		expect(rebanned.value).toMatchObject({ Reason: null, ExpiresAt: null })
+	})
+
+	it('POST /rooms/:id/bans deletes the banned player’s presence in that room', async () => {
+		const presenceOf = (accountId: number) =>
+			env.DB.prepare('SELECT room_id FROM presence WHERE account_id = ?1')
+				.bind(accountId)
+				.first<{ room_id: number }>()
+		const instanceId = 1000002 // what `putInRoom` puts room 2's players in
+		const isFull = async () =>
+			(
+				await env.DB.prepare('SELECT is_full FROM room_instance WHERE id = ?1')
+					.bind(instanceId)
+					.first<{ is_full: number }>()
+			)?.is_full
+
+		// A one-seat instance of room 2 that 320 is filling.
+		await env.DB.prepare('INSERT INTO room_instance (data) VALUES (?1)')
+			.bind(
+				JSON.stringify({
+					roomInstanceId: instanceId,
+					roomId: 2,
+					subRoomId: 2,
+					maxCapacity: 1,
+					isFull: true,
+				})
+			)
+			.run()
+		await putInRoom(320, 2)
+		// 321 is standing in a DIFFERENT room.
+		await putInRoom(321, 4)
+
+		expect((await postForm('/rooms/2/bans', { banMask: '0', id: '320' }, '1')).status).toBe(200)
+		// Gone from the room they were banned from, and the seat they held is free again.
+		expect(await presenceOf(320)).toBeNull()
+		expect(await isFull()).toBe(0)
+
+		// A ban from room 2 does not knock someone offline from room 4.
+		expect((await postForm('/rooms/2/bans', { banMask: '0', id: '321' }, '1')).status).toBe(200)
+		expect(await presenceOf(321)).toEqual({ room_id: 4 })
+
+		await clearPresence(321)
+		await env.DB.prepare('DELETE FROM room_instance WHERE id = ?1').bind(instanceId).run()
+	})
+
+	it('POST /rooms/:id/bans refuses a duration it cannot read, rather than banning forever', async () => {
+		for (const durationMinutes of ['thirty', '-5', '1.5']) {
+			expect(
+				await envOf(await postForm('/rooms/2/bans', { id: '313', durationMinutes }, '1')),
+				durationMinutes
+			).toMatchObject({ success: false, error: 'You must provide a valid ban duration!' })
+		}
+		const row = await env.DB.prepare(
+			'SELECT 1 FROM room_ban WHERE room_id = 2 AND banned_player_id = 313'
+		).first()
+		expect(row).toBeNull()
+	})
+
+	it('a lapsed room ban stops counting everywhere without being lifted', async () => {
+		// Written straight to the table: an hour-long ban issued two hours ago.
+		const issued = new Date(Date.now() - 2 * 3_600_000)
+		await env.DB.prepare(
+			`INSERT INTO room_ban
+				 (room_id, banned_player_id, ban_mask, banned_by_account_id, created_at, reason, expires_at)
+			 VALUES (2, 314, 0, 1, ?1, 'old', ?2)`
+		)
+			.bind(issued.toISOString(), new Date(issued.getTime() + 3_600_000).toISOString())
+			.run()
+
+		// `isBanned` — the same check `match` refuses matchmakes on.
+		const isBanned = await SELF.fetch(`${ORIGIN}/rooms/2/bans/314/isBanned`, {
+			headers: await bearer('314'),
+		})
+		expect(await isBanned.json()).toMatchObject({ Value: false })
+
+		// Not in the ban list.
+		const list = (await (
+			await SELF.fetch(`${ORIGIN}/rooms/2/bans`, { headers: await bearer('1') })
+		).json()) as Array<{ accountId: number }>
+		expect(list.some((b) => b.accountId === 314)).toBe(false)
+
+		// Unbanning it is "not banned", like any other player who isn't.
+		const unban = await SELF.fetch(`${ORIGIN}/rooms/2/bans/314`, {
+			method: 'DELETE',
+			headers: await bearer('1'),
+		})
+		expect(await unban.json()).toMatchObject({ success: false })
+
+		// A ban still in force DOES count — the filter is on the expiry, not on having one.
+		expect(
+			(await postForm('/rooms/2/bans', { id: '315', durationMinutes: '30' }, '1')).status
+		).toBe(200)
+		const stillBanned = await SELF.fetch(`${ORIGIN}/rooms/2/bans/315/isBanned`, {
+			headers: await bearer('315'),
+		})
+		expect(await stillBanned.json()).toMatchObject({ Value: true })
+	})
+
+	it('POST /rooms/:id/bans kicks a banned player out of the room — without banning them from the game', async () => {
+		type Sent = {
+			playerId?: number
+			playerIds?: number[]
+			ephemeral?: boolean
+			notificationType: string | number
+			data: unknown
+		}
 		const hub = () => env.RECFLARE_NOTIFICATIONS_HUB.getByName('global')
 		const sentSince = async (): Promise<Sent[]> =>
 			(await (await hub().fetch('http://do/all')).json()) as Sent[]
@@ -2516,27 +2662,30 @@ describe('rooms endpoints', () => {
 		// The room's current name, read rather than hardcoded — earlier tests rename it.
 		const { Name } = (await (await SELF.fetch(`${ORIGIN}/rooms/2`)).json()) as { Name: string }
 
+		await putInRoom(207, 2)
 		await hub().fetch('http://do/all', { method: 'DELETE' })
 		expect((await postForm('/rooms/2/bans', { banMask: '0', id: '207' }, '1')).status).toBe(200)
 
-		// A ModerationKick (id 22) to the BANNED player, not the caller — it ejects them
-		// from the instance they're in now; the row keeps them out of future matchmakes.
+		// One EPHEMERAL ModerationKick to the banned player, out of the instance they were in.
 		// Asserted against the enum rather than a literal: the ids are notify's to change.
 		expect(await sentSince()).toEqual([
 			{
-				playerId: 207,
+				playerIds: [207],
+				ephemeral: true,
 				notificationType: NotificationType.ModerationKick,
 				// The client's moderation payload, camelCase, in wire order.
 				data: {
 					reportCategory: -1, // Moderator — a person acted, not the system
-					duration: 0, // a room ban has no expiry
-					gameSessionId: 0,
-					// The host ejected them (as opposed to a room vote-kick, which doesn't
-					// exist yet). Account 1 owns RecCenter, so it hosts it.
+					duration: 0,
+					gameSessionId: 1000002, // the instance `putInRoom` stood them in
+					// Account 1 owns RecCenter, so it hosts it.
 					isHostKick: true,
 					message: `You have been banned from ${Name}.`,
 					playerIdReporter: 1,
-					isBan: true,
+					// FALSE. `isBan: true` is what the client shows as a ban from the whole game
+					// — the account ban's frame. A room ban is enforced by the row, when `match`
+					// refuses them the room; this frame only ejects them from the session.
+					isBan: false,
 					isVoiceModAutoban: false,
 				},
 			},
@@ -2544,14 +2693,26 @@ describe('rooms endpoints', () => {
 
 		// A staff moderator doesn't host the room, so it isn't a host kick — and
 		// `playerIdReporter` is still whoever caused it.
+		await putInRoom(208, 2)
 		await hub().fetch('http://do/all', { method: 'DELETE' })
 		expect(
 			(await postForm('/rooms/2/bans', { id: '208' }, '999', ['gameClient', 'moderator'])).status
 		).toBe(200)
 		expect((await sentSince())[0]).toMatchObject({
-			playerId: 208,
-			data: { isHostKick: false, playerIdReporter: 999 },
+			playerIds: [208],
+			data: { isHostKick: false, playerIdReporter: 999, isBan: false },
 		})
+
+		// A player who is NOT in the room has nothing to be kicked out of, and hears NOTHING —
+		// not now, and not queued for their next connect, which is how a room ban once greeted
+		// players with a ban screen on login.
+		await putInRoom(216, 4)
+		await hub().fetch('http://do/all', { method: 'DELETE' })
+		expect((await postForm('/rooms/2/bans', { id: '216' }, '1')).status).toBe(200)
+		expect((await postForm('/rooms/2/bans', { id: '217' }, '1')).status).toBe(200)
+		expect(await sentSince()).toEqual([])
+
+		for (const id of [216]) await clearPresence(id)
 	})
 
 	it('GET /rooms/:id/bans lists the room’s bans, under the same gate', async () => {
@@ -2586,6 +2747,258 @@ describe('rooms endpoints', () => {
 		expect(await (await list('/rooms/99999/bans', '1')).json()).toEqual([])
 	})
 
+	it('GET /rooms/:id/bans/history serves the client’s exact shape', async () => {
+		const history = async (playerId: number) =>
+			(await (
+				await SELF.fetch(`${ORIGIN}/rooms/2/bans/history?id=${playerId}`, {
+					headers: await bearer('1'),
+				})
+			).json()) as {
+				Value: {
+					ActiveBan: Record<string, unknown> | null
+					PreviousBans: Array<Record<string, unknown>>
+				}
+				Success: boolean
+				Error: string | null
+				error_id: string | null
+			}
+
+		expect(
+			(await postForm('/rooms/2/bans', { banMask: '0', id: '340', reason: 'test' }, '1')).status
+		).toBe(200)
+		const body = await history(340)
+
+		// The envelope, PascalCase with a lowercase `error_id`, and a Value of exactly two keys.
+		expect(Object.keys(body)).toEqual(['Value', 'Success', 'Error', 'error_id'])
+		expect(body).toMatchObject({ Success: true, Error: null, error_id: null })
+		expect(Object.keys(body.Value)).toEqual(['ActiveBan', 'PreviousBans'])
+
+		// Seven keys in the CLIENT'S order — derived members first, so AccountId is fifth.
+		const active = body.Value.ActiveBan!
+		expect(Object.keys(active)).toEqual([
+			'Status',
+			'UnbannedByAccountId',
+			'BanEndTime',
+			'Reason',
+			'AccountId',
+			'BannedByAccountId',
+			'BanStartTime',
+		])
+		expect(active).toMatchObject({
+			Status: 0, // Active
+			UnbannedByAccountId: null,
+			BanEndTime: null, // permanent
+			Reason: 'test',
+			AccountId: 340,
+			BannedByAccountId: 1,
+		})
+		// UTC to the second, as the client's example carries it.
+		expect(active.BanStartTime).toMatch(/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z$/)
+		expect(body.Value.PreviousBans).toEqual([])
+
+		// A ban with no reason is `""`, never null; a timed one carries its scheduled end.
+		expect(
+			(await postForm('/rooms/2/bans', { id: '341', durationMinutes: '30' }, '1')).status
+		).toBe(200)
+		const timed = (await history(341)).Value.ActiveBan!
+		expect(timed.Reason).toBe('')
+		expect(Date.parse(timed.BanEndTime as string) - Date.parse(timed.BanStartTime as string)).toBe(
+			30 * 60_000
+		)
+
+		// Someone never banned has no history at all.
+		expect((await history(349)).Value).toEqual({ ActiveBan: null, PreviousBans: [] })
+	})
+
+	it('GET /rooms/:id/bans/history keeps lifted and elapsed bans, newest first', async () => {
+		type Rec = {
+			Status: number
+			UnbannedByAccountId: number | null
+			BanEndTime: string | null
+			Reason: string
+		}
+		const history = async (playerId: number) =>
+			(
+				(await (
+					await SELF.fetch(`${ORIGIN}/rooms/2/bans/history?id=${playerId}`, {
+						headers: await bearer('1'),
+					})
+				).json()) as { Value: { ActiveBan: Rec | null; PreviousBans: Rec[] } }
+			).Value
+		const unban = async (playerId: number, sub: string) =>
+			SELF.fetch(`${ORIGIN}/rooms/2/bans/${playerId}`, {
+				method: 'DELETE',
+				headers: await bearer(sub),
+			})
+
+		// LIFTED: banned by the owner, unbanned early by the co-owner.
+		expect((await postForm('/rooms/2/bans', { id: '342', reason: 'first' }, '1')).status).toBe(200)
+		expect((await unban(342, '2')).status).toBe(200)
+		let h = await history(342)
+		expect(h.ActiveBan).toBeNull()
+		expect(h.PreviousBans).toHaveLength(1)
+		expect(h.PreviousBans[0]).toMatchObject({ Status: 2, UnbannedByAccountId: 2, Reason: 'first' })
+		expect(h.PreviousBans[0].BanEndTime).not.toBeNull()
+
+		// Banned and lifted again: two previous bans, the newest first.
+		expect((await postForm('/rooms/2/bans', { id: '342', reason: 'second' }, '1')).status).toBe(200)
+		expect((await unban(342, '1')).status).toBe(200)
+		h = await history(342)
+		expect(h.PreviousBans.map((b) => b.Reason)).toEqual(['second', 'first'])
+
+		// ELAPSED: a one-hour ban issued two hours ago, never touched since. It is not active,
+		// and it is already reported as a previous ban before anything files it.
+		const issued = new Date(Date.now() - 2 * 3_600_000)
+		const expired = new Date(issued.getTime() + 3_600_000).toISOString()
+		await env.DB.prepare(
+			`INSERT INTO room_ban
+				 (room_id, banned_player_id, ban_mask, banned_by_account_id, created_at, reason, expires_at)
+			 VALUES (2, 343, 0, 1, ?1, 'lapsed', ?2)`
+		)
+			.bind(issued.toISOString(), expired)
+			.run()
+		h = await history(343)
+		expect(h.ActiveBan).toBeNull()
+		expect(h.PreviousBans).toEqual([
+			expect.objectContaining({ Status: 1, UnbannedByAccountId: null, Reason: 'lapsed' }),
+		])
+
+		// A new ban replaces the stale row — and FILES the lapsed one, exactly once, rather than
+		// losing it or counting it twice.
+		expect((await postForm('/rooms/2/bans', { id: '343', reason: 'again' }, '1')).status).toBe(200)
+		h = await history(343)
+		expect(h.ActiveBan).toMatchObject({ Status: 0, Reason: 'again' })
+		expect(h.PreviousBans).toEqual([
+			expect.objectContaining({ Status: 1, UnbannedByAccountId: null, Reason: 'lapsed' }),
+		])
+		// Elapsed at its expiry, not at the moment it was replaced.
+		expect(Date.parse(h.PreviousBans[0].BanEndTime!)).toBe(
+			Math.floor(Date.parse(expired) / 1000) * 1000
+		)
+
+		// Re-issuing a ban still in force AMENDS it: one active ban, nothing filed.
+		expect((await postForm('/rooms/2/bans', { id: '344', reason: 'v1' }, '1')).status).toBe(200)
+		expect((await postForm('/rooms/2/bans', { id: '344', reason: 'v2' }, '2')).status).toBe(200)
+		h = await history(344)
+		expect(h.ActiveBan).toMatchObject({ Reason: 'v2' })
+		expect(h.PreviousBans).toEqual([])
+
+		// The bulk unban files a lift the same way the single one does.
+		await SELF.fetch(`${ORIGIN}/rooms/2/bans/bulk`, {
+			method: 'DELETE',
+			headers: { 'content-type': 'application/x-www-form-urlencoded', ...(await bearer('1')) },
+			body: 'banMask=0&id=344',
+		})
+		h = await history(344)
+		expect(h.ActiveBan).toBeNull()
+		expect(h.PreviousBans).toEqual([
+			expect.objectContaining({ Status: 2, UnbannedByAccountId: 1, Reason: 'v2' }),
+		])
+	})
+
+	it('GET /rooms/:id/bans/history is gated like the ban list', async () => {
+		const get = async (path: string, sub?: string, roles?: string[]) =>
+			SELF.fetch(`${ORIGIN}${path}`, { headers: sub ? await bearer(sub, roles) : {} })
+		expect((await postForm('/rooms/2/bans', { id: '345' }, '1')).status).toBe(200)
+
+		expect((await get('/rooms/2/bans/history?id=345')).status).toBe(401)
+		expect((await get('/rooms/2/bans/history?id=345', '999')).status).toBe(403)
+		// The co-owner, and a staff token with no role on the room.
+		for (const [sub, roles] of [
+			['2', undefined],
+			['999', ['gameClient', 'moderator']],
+		] as const) {
+			const res = await get('/rooms/2/bans/history?id=345', sub, roles as string[] | undefined)
+			expect(res.status, sub).toBe(200)
+			expect(
+				((await res.json()) as { Value: { ActiveBan: unknown } }).Value.ActiveBan
+			).not.toBeNull()
+		}
+
+		// An unknown room is an empty history, not an error.
+		expect(await (await get('/rooms/99999/bans/history?id=345', '999')).json()).toEqual({
+			Value: { ActiveBan: null, PreviousBans: [] },
+			Success: true,
+			Error: null,
+			error_id: null,
+		})
+		// A missing or non-numeric id.
+		for (const q of ['', '?id=nope']) {
+			expect(await (await get(`/rooms/2/bans/history${q}`, '1')).json(), q).toEqual({
+				Value: null,
+				Success: false,
+				Error: 'You must provide a valid player!',
+				error_id: null,
+			})
+		}
+	})
+
+	it('DELETE /rooms/:id/bans/bulk removes the named bans, under the same gate', async () => {
+		type Removed = {
+			success: boolean
+			error: string
+			value: Array<{ BannedPlayerId: number }> | null
+		}
+		const unban = async (body: string, sub?: string, roles?: string[]) =>
+			SELF.fetch(`${ORIGIN}/rooms/2/bans/bulk`, {
+				method: 'DELETE',
+				headers: {
+					'content-type': 'application/x-www-form-urlencoded',
+					...(sub ? await bearer(sub, roles) : {}),
+				},
+				body,
+			})
+		const banned = async (playerId: number) =>
+			(await env.DB.prepare('SELECT 1 FROM room_ban WHERE room_id = 2 AND banned_player_id = ?1')
+				.bind(playerId)
+				.first()) !== null
+		for (const id of ['330', '331', '332', '333']) {
+			expect((await postForm('/rooms/2/bans', { id }, '1')).status).toBe(200)
+		}
+
+		// No token → 401; a valid token with no standing in the room → 403. Nothing removed.
+		expect((await unban('banMask=0&id=330')).status).toBe(401)
+		expect((await unban('banMask=0&id=330', '999')).status).toBe(403)
+		expect(await banned(330)).toBe(true)
+
+		// The client's body, verbatim, from the owner.
+		const one = await unban('banMask=0&id=330', '1')
+		expect(one.status).toBe(200)
+		expect((await one.json()) as Removed).toMatchObject({
+			success: true,
+			error: '',
+			value: [{ BannedPlayerId: 330 }],
+		})
+		expect(await banned(330)).toBe(false)
+
+		// Repeated `id` lifts every one of them — not just the last — from a co-owner, and a player
+		// who is not banned (330, already lifted) is skipped rather than failing the others.
+		const many = (await (await unban('banMask=0&id=331&id=330&id=332', '2')).json()) as Removed
+		expect(many).toMatchObject({ success: true })
+		expect(many.value!.map((b) => b.BannedPlayerId)).toEqual([331, 332])
+		expect(await banned(331)).toBe(false)
+		expect(await banned(332)).toBe(false)
+
+		// A staff token works in a room it has no role on, and a comma-separated id is read too.
+		expect(
+			(await (await unban('id=333,334', '999', ['gameClient', 'moderator'])).json()) as Removed
+		).toMatchObject({ success: true, value: [{ BannedPlayerId: 333 }] })
+
+		// Nothing banned among the names is still a success, with nothing removed.
+		expect((await (await unban('id=330', '1')).json()) as Removed).toMatchObject({
+			success: true,
+			value: [],
+		})
+		// A body naming no valid player at all is the one rejection.
+		for (const body of ['banMask=0', 'id=nope']) {
+			expect((await (await unban(body, '1')).json()) as Removed, body).toMatchObject({
+				success: false,
+				error: 'You must provide a valid player to unban!',
+				value: null,
+			})
+		}
+	})
+
 	it('DELETE /rooms/:id/bans/:playerId lifts a ban, under the same gate', async () => {
 		const del = async (path: string, sub?: string, roles?: string[]) =>
 			SELF.fetch(`${ORIGIN}${path}`, {
@@ -4654,6 +5067,7 @@ describe('rooms endpoints', () => {
 		)
 		expect([...documented].sort()).toEqual([
 			'DELETE /rooms/{roomId}',
+			'DELETE /rooms/{roomId}/bans/bulk',
 			'DELETE /rooms/{roomId}/bans/{playerId}',
 			'DELETE /rooms/{roomId}/interactionby/me/cheer',
 			'DELETE /rooms/{roomId}/interactionby/me/favorite',
@@ -4683,6 +5097,7 @@ describe('rooms endpoints', () => {
 			'GET /rooms/visitedby/{playerId}',
 			'GET /rooms/{roomId}',
 			'GET /rooms/{roomId}/bans',
+			'GET /rooms/{roomId}/bans/history',
 			'GET /rooms/{roomId}/bans/{playerId}/isBanned',
 			'GET /rooms/{roomId}/experience',
 			'GET /rooms/{roomId}/experience/player',

apps/rooms/vitest.config.ts

@@ -23,7 +23,9 @@ export default defineConfig({
 						durableObjects: { RECFLARE_NOTIFICATIONS_HUB: 'NotificationsHub' },
 						// notifyPlayer records every call so tests can assert the notifications the
 						// worker pushed (type + payload). GET /all for the whole list, DELETE to
-						// reset it between assertions.
+						// reset it between assertions. notifyPlayersEphemeral is recorded too, with
+						// `playerIds` and `ephemeral: true`: whether a frame is queued for an offline
+						// player is worth asserting — a queued ModerationKick lands on their next login.
 						script: `
 							import { DurableObject } from 'cloudflare:workers'
 							export class NotificationsHub extends DurableObject {
@@ -32,6 +34,10 @@ export default defineConfig({
 									this.sent.push({ playerId, notificationType, data })
 									return { delivered: 0, queued: true }
 								}
+								async notifyPlayersEphemeral(playerIds, notificationType, data) {
+									this.sent.push({ playerIds, ephemeral: true, notificationType, data })
+									return { delivered: 0 }
+								}
 								async broadcast() { return { delivered: 0 } }
 								async fetch(request) {
 									if (request.method === 'DELETE') {

apps/www/src/staff.ts

@@ -8,6 +8,7 @@ import { validateAndGetAccountId, validateAndGetRoles } from '@repo/jwt'
 // module comment below.
 import { banEvasionMatch, linkedAccounts } from '../../api/src/bans-db'
 import {
+	banBlockDetails,
 	banFromReport,
 	createReport,
 	getActiveBan,
@@ -20,11 +21,10 @@ import {
 import { getWarningsAgainst } from '../../api/src/warnings-db'
 // The notification ids and the kick frame's recovered shape, owned by `notify`. Both are
 // imported as values/types with no runtime dependencies.
-import { KickReportCategory } from '../../notify/src/notification-payloads'
 import { NotificationType } from '../../notify/src/notification-types'
 
 import type { Context, MiddlewareHandler } from 'hono'
-import type { ReportSearch } from '../../api/src/reports-db'
+import type { ReportRow, ReportSearch } from '../../api/src/reports-db'
 import type { ModerationKickPayload } from '../../notify/src/notification-payloads'
 import type { App, Env } from './context'
 
@@ -152,46 +152,59 @@ function banExpiry(
 }
 
 /**
- * Throw the banned player out of whatever instance they are standing in.
+ * Tell a player they have been banned from the GAME, and throw them out of wherever they are.
  *
- * Without this a ban only takes effect on the player's NEXT matchmake: `match` refuses a
- * banned player, but nothing revisits a session already in progress, so someone banned
- * mid-session keeps playing until they leave on their own.
+ * Without this a ban only takes effect on the player's NEXT sign-in or matchmake: `match`
+ * refuses a banned player and `moderationBlockDetails` blocks them at login, but nothing
+ * revisits a session already in progress, so someone banned mid-session keeps playing.
  *
- * Mirrors `api`'s instant kick — presence row deleted (they read offline at once and the
- * instance frees a slot), instance fullness recomputed, and a `ModerationKick` frame (id
- * 22) pushed EPHEMERALLY. `IsBan` is true here, which is what makes the client's screen
- * name it as a ban rather than a kick, and an offline player needs no frame: they meet the
- * ban at `moderationBlockDetails` when they next sign in.
+ * The frame is a `ModerationKick` (id 22) with `IsBan: true` — the frame the client's
+ * moderation screen shows as a ban from the game. This is the ONE place that frame belongs: a
+ * ROOM ban must never send it (`rooms` sends `IsBan: false` and is enforced by refusing the
+ * room), because the client cannot tell the two apart and shows a game-wide ban screen.
  *
- * Entirely best-effort. The ban row is already committed by the time this runs; a hub
- * hiccup or a missing presence must not fail a ban that has been handed down.
+ * Its contents are {@link banBlockDetails} — the same `ReportCategory`, `Message` and the
+ * `Duration`/`TimeoutStartedAt` pair `moderationBlockDetails` answers for this ban — so the
+ * screen a player sees mid-session is the screen they see when they next sign in, not a
+ * generic "banned" with no length.
+ *
+ * Sent to anyone ONLINE, not only to a player standing in an instance: someone in a menu is
+ * as banned as someone in a room. `GameSessionId` is their instance, or 0 when they are in
+ * none. EPHEMERAL, because an offline player needs no frame — they meet the same screen at
+ * `moderationBlockDetails` when they next sign in — and a queued one would fire again then.
+ *
+ * Their presence row is deleted (they read offline at once), and the instance they were in,
+ * if any, has its fullness recomputed so a full room frees a slot.
+ *
+ * Entirely best-effort. The ban row is already committed by the time this runs; a hub hiccup
+ * or a missing presence must not fail a ban that has been handed down.
  */
-async function kickBannedPlayer(c: Context<App>, playerId: number, moderatorId: number) {
+async function kickBannedPlayer(c: Context<App>, report: ReportRow, moderatorId: number) {
+	const playerId = report.reported_player_id
 	try {
 		const presence = (await getPresences<{ roomInstanceId?: number }>(c.env.DB, [playerId])).get(
 			playerId
 		)
-		const gameSessionId = presence?.roomInstance?.roomInstanceId
-		// Not online, or online but not in an instance (the lobby) — nothing to eject them
-		// from. Their presence row still goes, so they read offline immediately.
-		if (presence) await deletePresence(c.env.DB, playerId)
-		if (gameSessionId === undefined) return
+		// Offline: nothing to eject and nobody to tell. The sign-in check has them.
+		if (!presence) return
 
-		await refreshInstanceFullness(c.env.DB, gameSessionId)
+		await deletePresence(c.env.DB, playerId)
+		const gameSessionId = presence.roomInstance?.roomInstanceId
+		if (gameSessionId !== undefined) await refreshInstanceFullness(c.env.DB, gameSessionId)
 
+		const block = banBlockDetails(report)
 		const frame: ModerationKickPayload = {
-			ReportCategory: KickReportCategory.Moderator,
-			Duration: 0,
-			GameSessionId: gameSessionId,
+			ReportCategory: block.ReportCategory,
+			Duration: block.Duration,
+			GameSessionId: gameSessionId ?? 0,
 			IsHostKick: false,
-			Message: 'You have been banned.',
+			Message: block.Message,
 			PlayerIdReporter: null,
 			IsBan: true,
 			IsVoiceModAutoban: false,
 			IsWarning: false,
 			VoteKickReason: '',
-			TimeoutStartedAt: null,
+			TimeoutStartedAt: block.TimeoutStartedAt,
 		}
 		await c.env.RECFLARE_NOTIFICATIONS_HUB.getByName(HUB_INSTANCE).notifyPlayersEphemeral(
 			[playerId],
@@ -199,7 +212,7 @@ async function kickBannedPlayer(c: Context<App>, playerId: number, moderatorId:
 			{ ...frame }
 		)
 	} catch (err) {
-		logger.error('failed to kick a banned player out of their instance', {
+		logger.error('failed to tell a banned player they are banned', {
 			playerId,
 			moderatorId,
 			error: err instanceof Error ? err.message : String(err),
@@ -346,7 +359,7 @@ export async function banReportHandler(c: Context<App>) {
 		banExpires: report.ban_expires,
 	})
 
-	if (banned) await kickBannedPlayer(c, report.reported_player_id, moderatorId)
+	if (banned) await kickBannedPlayer(c, report, moderatorId)
 	return c.json(report)
 }
 

apps/www/src/test/integration/api.test.ts

@@ -937,6 +937,16 @@ it('throws a banned player out of the instance they are standing in', async () =
 	expect(frames[0].data.IsBan).toBe(true)
 	expect(frames[0].data.GameSessionId).toBe(77001)
 
+	// The SAME ban the sign-in screen describes, not a generic one: its category, message and
+	// the Duration/TimeoutStartedAt pair, three days from when it was handed down.
+	const banned = await getReportById(env.DB, report.id)
+	expect(frames[0].data).toMatchObject({
+		ReportCategory: banned!.report_category,
+		Message: 'Rule violation',
+		TimeoutStartedAt: banned!.banned_at,
+		Duration: 3 * 86_400,
+	})
+
 	// And their presence row is gone, so they read offline at once and the instance frees
 	// a slot.
 	const presence = await env.DB.prepare(
@@ -945,6 +955,37 @@ it('throws a banned player out of the instance they are standing in', async () =
 	expect(presence?.n).toBe(0)
 })
 
+// Online but not standing in any room — in a menu — is still banned from the game, and is
+// told so now rather than at their next sign-in.
+it('tells a banned player who is online but in no instance', async () => {
+	const hub = () => env.RECFLARE_NOTIFICATIONS_HUB.getByName('global')
+	await hub().fetch('http://do/all', { method: 'DELETE' })
+
+	await setPresence(env.DB, {
+		accountId: 8195,
+		roomInstance: null,
+		statusVisibility: 0,
+		deviceClass: 0,
+		vrMovementMode: 0,
+		platform: 4,
+		appVersion: 'test',
+	})
+	const report = await createReport(env.DB, { reporterPlayerId: 8196, reportedPlayerId: 8195 })
+	expect(
+		(await staffPost(`/api/staff/reports/${report.id}/ban`, 8110, { permanent: true })).status
+	).toBe(200)
+
+	const frames = (await (await hub().fetch('http://do/all')).json()) as Array<{
+		playerIds?: number[]
+		ephemeral?: boolean
+		data: Record<string, unknown>
+	}>
+	expect(frames).toHaveLength(1)
+	expect(frames[0]).toMatchObject({ playerIds: [8195], ephemeral: true })
+	// No session to name, and a permanent ban carries the largest duration the field holds.
+	expect(frames[0].data).toMatchObject({ IsBan: true, GameSessionId: 0, Duration: 2_147_483_647 })
+})
+
 // The ban row is committed before the kick is attempted, so a player who is offline (or
 // a hub that can't be reached) must not fail a ban that has been handed down.
 it('bans an offline player without a kick to push', async () => {