fix: /api/v1/instance

backend/src/mastodon/instance.ts

@@ -0,0 +1,13 @@
+import type { InstanceStatistics } from 'wildebeest/backend/src/types/instance'
+import { instanceStatisticsQuery } from 'wildebeest/backend/src/mastodon/sql/instance'
+import { Database } from 'wildebeest/backend/src/database'
+
+export async function calculateInstanceStatistics(origin: string, db: Database): Promise<InstanceStatistics> {
+	const row: any = await db.prepare(instanceStatisticsQuery(origin)).first()
+
+	return {
+		user_count: row?.user_count ?? 0,
+		status_count: row?.status_count ?? 0,
+		domain_count: row?.domain_count ?? 1,
+	} as InstanceStatistics
+}

backend/src/mastodon/sql/instance.ts

@@ -0,0 +1,10 @@
+// Prepared statements for Mastodon Instance API endpoints
+export const instanceStatisticsQuery = (origin: string): string => {
+	return `
+  SELECT
+    (SELECT count(1) FROM actors WHERE type IN ('Person', 'Service') AND id LIKE '%${origin}/ap/users/%') AS user_count,
+    (SELECT count(1) FROM objects WHERE local = 1 AND type = 'Note') AS status_count,
+    (SELECT count(1) FROM peers) + 1 AS domain_count
+  ;
+`
+}

backend/src/types/env.ts

@@ -21,6 +21,9 @@ export interface Env {
 	INSTANCE_DESCR: string
 	VAPID_JWK: string
 	DOMAIN: string
+	INSTANCE_ACCEPTING_REGISTRATIONS?: boolean
+	INSTANCE_REGISTRATIONS_REQUIRE_APPROVAL?: boolean
+	INSTANCE_CONFIG_STATUSES_MAX_CHARACTERS?: number
 
 	SENTRY_DSN: string
 	SENTRY_ACCESS_CLIENT_ID: string

backend/src/types/instance.ts

@@ -0,0 +1,67 @@
+import type { MastodonAccount } from './account'
+
+// https://docs.joinmastodon.org/entities/Instance/
+// https://github.com/mastodon/mastodon-ios/blob/develop/MastodonSDK/Sources/MastodonSDK/Entity/Mastodon%2BEntity%2BInstance.swift
+// https://github.com/mastodon/mastodon-android/blob/master/mastodon/src/main/java/org/joinmastodon/android/model/Instance.java
+export interface MastodonInstance {
+	uri: string
+	title: string
+	description: string
+	short_description: string
+	email: string
+	version?: string
+	languages?: Array<string>
+	registrations?: boolean
+	approval_required?: boolean
+	invites_enabled?: boolean
+	urls?: InstanceURL
+	statistics?: InstanceStatistics
+	stats?: InstanceStatistics
+	thumbnail?: string
+	contact_account?: MastodonAccount
+	rules?: Array<InstanceRule>
+	configuration?: InstanceConfiguration
+}
+
+export interface InstanceURL {
+	streaming_api: string
+}
+
+export type InstanceStatistics = {
+	user_count: number
+	status_count: number
+	domain_count: number
+}
+
+export type InstanceRule = {
+	id: string
+	text: string
+}
+
+export type InstanceConfiguration = {
+	statuses?: StatusesConfiguration
+	media_attachments?: MediaAttachmentsConfiguration
+	polls?: PollsConfiguration
+}
+
+export type StatusesConfiguration = {
+	max_characters: number
+	max_media_attachments: number
+	characters_reserved_per_url: number
+}
+
+export type MediaAttachmentsConfiguration = {
+	supported_mime_types: Array<string>
+	image_size_limit: number
+	image_matrix_limit: number
+	video_size_limit: number
+	video_frame_rate_limit: number
+	video_matrix_limit: number
+}
+
+export type PollsConfiguration = {
+	max_options: number
+	max_characters_per_option: number
+	min_expiration: number
+	max_expiration: number
+}

backend/test/mastodon.spec.ts

@@ -1,7 +1,4 @@
 import { strict as assert } from 'node:assert/strict'
-import type { Env } from 'wildebeest/backend/src/types/env'
-import * as v1_instance from 'wildebeest/functions/api/v1/instance'
-import * as v2_instance from 'wildebeest/functions/api/v2/instance'
 import * as custom_emojis from 'wildebeest/functions/api/v1/custom_emojis'
 import * as mutes from 'wildebeest/functions/api/v1/mutes'
 import * as blocks from 'wildebeest/functions/api/v1/blocks'
@@ -14,80 +11,6 @@ const userKEK = 'test_kek23'
 const domain = 'cloudflare.com'
 
 describe('Mastodon APIs', () => {
-	describe('instance', () => {
-		type Data = {
-			rules: unknown[]
-			uri: string
-			title: string
-			email: string
-			description: string
-			version: string
-			domain: string
-			contact: { email: string }
-		}
-
-		test('return the instance infos v1', async () => {
-			const env = {
-				INSTANCE_TITLE: 'a',
-				ADMIN_EMAIL: 'b',
-				INSTANCE_DESCR: 'c',
-			} as Env
-
-			const res = await v1_instance.handleRequest(domain, env)
-			assert.equal(res.status, 200)
-			assertCORS(res)
-			assertJSON(res)
-
-			{
-				const data = await res.json<Data>()
-				assert.equal(data.rules.length, 0)
-				assert.equal(data.uri, domain)
-				assert.equal(data.title, 'a')
-				assert.equal(data.email, 'b')
-				assert.equal(data.description, 'c')
-				assert(data.version.includes('Wildebeest'))
-			}
-		})
-
-		test('adds a short_description if missing v1', async () => {
-			const env = {
-				INSTANCE_DESCR: 'c',
-			} as Env
-
-			const res = await v1_instance.handleRequest(domain, env)
-			assert.equal(res.status, 200)
-
-			{
-				const data = await res.json<any>()
-				assert.equal(data.short_description, 'c')
-			}
-		})
-
-		test('return the instance infos v2', async () => {
-			const db = await makeDB()
-
-			const env = {
-				INSTANCE_TITLE: 'a',
-				ADMIN_EMAIL: 'b',
-				INSTANCE_DESCR: 'c',
-			} as Env
-			const res = await v2_instance.handleRequest(domain, db, env)
-			assert.equal(res.status, 200)
-			assertCORS(res)
-			assertJSON(res)
-
-			{
-				const data = await res.json<Data>()
-				assert.equal(data.rules.length, 0)
-				assert.equal(data.domain, domain)
-				assert.equal(data.title, 'a')
-				assert.equal(data.contact.email, 'b')
-				assert.equal(data.description, 'c')
-				assert(data.version.includes('Wildebeest'))
-			}
-		})
-	})
-
 	describe('custom emojis', () => {
 		test('returns an empty array', async () => {
 			const res = await custom_emojis.onRequest()

backend/test/mastodon/instance.spec.ts

@@ -1,22 +1,152 @@
 import { addPeer } from 'wildebeest/backend/src/activitypub/peers'
 import { strict as assert } from 'node:assert/strict'
+import type { Env } from 'wildebeest/backend/src/types/env'
+import * as v1_instance from 'wildebeest/functions/api/v1/instance'
+import * as v2_instance from 'wildebeest/functions/api/v2/instance'
 import * as peers from 'wildebeest/functions/api/v1/instance/peers'
-import { makeDB } from '../utils'
+import { makeDB, assertCORS, assertJSON } from 'wildebeest/backend/test/utils'
+import { createPerson } from 'wildebeest/backend/src/activitypub/actors'
+import { createPublicNote } from 'wildebeest/backend/src/activitypub/objects/note'
+import { MastodonInstance } from 'wildebeest/backend/src/types/instance'
+
+const adminKEK = 'admin'
+const userKEK = 'test_kek2'
+const admin_email = 'admin@cloudflare.com'
+const domain = 'cloudflare.com'
 
 describe('Mastodon APIs', () => {
-	describe('instance', () => {
-		test('returns peers', async () => {
-			const db = await makeDB()
-			await addPeer(db, 'a')
-			await addPeer(db, 'b')
-
-			const res = await peers.handleRequest(db)
-			assert.equal(res.status, 200)
-
-			const data = await res.json<Array<string>>()
-			assert.equal(data.length, 2)
-			assert.equal(data[0], 'a')
-			assert.equal(data[1], 'b')
+	describe('/v1', () => {
+		describe('/instance', () => {
+			const env = {
+				INSTANCE_TITLE: 'a',
+				ADMIN_EMAIL: admin_email,
+				INSTANCE_DESCR: 'c',
+			} as Env
+
+			test('return the correct instance admin', async () => {
+				const db = await makeDB()
+				await createPerson(domain, db, adminKEK, admin_email, {}, true)
+
+				const res = await v1_instance.handleRequest(domain, env, db)
+				assert.equal(res.status, 200)
+				assertCORS(res)
+				assertJSON(res)
+
+				{
+					const data = await res.json<MastodonInstance>()
+					assert.equal(data.email, admin_email)
+					assert.equal(data?.contact_account?.acct, adminKEK)
+				}
+			})
+
+			test('return the correct instance statistics', async () => {
+				const db = await makeDB()
+				const person = await createPerson(domain, db, adminKEK, admin_email, {}, true)
+				await createPerson(domain, db, userKEK, 'sven@cloudflare.com')
+				await addPeer(db, 'a')
+				await addPeer(db, 'b')
+				await createPublicNote(domain, db, 'my first status', person)
+
+				const res = await v1_instance.handleRequest(domain, env, db)
+				assert.equal(res.status, 200)
+				assertCORS(res)
+				assertJSON(res)
+
+				{
+					const data = await res.json<MastodonInstance>()
+					assert.equal(data.stats?.user_count, 2)
+					assert.equal(data.stats?.status_count, 1)
+					assert.equal(data.stats?.domain_count, 3)
+				}
+			})
+
+			test('return the instance info', async () => {
+				const db = await makeDB()
+				await createPerson(domain, db, adminKEK, admin_email, {}, true)
+
+				const res = await v1_instance.handleRequest(domain, env, db)
+				assert.equal(res.status, 200)
+				assertCORS(res)
+				assertJSON(res)
+
+				{
+					const data = await res.json<MastodonInstance>()
+					assert.equal(data.rules?.length, 0)
+					assert.equal(data.uri, domain)
+					assert.equal(data.title, 'a')
+					assert.equal(data.email, admin_email)
+					assert.equal(data.description, 'c')
+					assert(data.version?.includes('Wildebeest'))
+				}
+			})
+
+			test('adds a short_description if missing v1', async () => {
+				const db = await makeDB()
+				await createPerson(domain, db, adminKEK, admin_email, {}, true)
+
+				const res = await v1_instance.handleRequest(domain, env, db)
+				assert.equal(res.status, 200)
+
+				{
+					const data = await res.json<any>()
+					assert.equal(data.short_description, 'c')
+				}
+			})
+
+			describe('/peers', () => {
+				test('returns peers', async () => {
+					const db = await makeDB()
+					await addPeer(db, 'a')
+					await addPeer(db, 'b')
+
+					const res = await peers.handleRequest(db)
+					assert.equal(res.status, 200)
+
+					const data = await res.json<Array<string>>()
+					assert.equal(data.length, 2)
+					assert.equal(data[0], 'a')
+					assert.equal(data[1], 'b')
+				})
+			})
+		})
+	})
+	describe('/v2', () => {
+		describe('/instance', () => {
+			type Data = {
+				rules: unknown[]
+				uri: string
+				title: string
+				email: string
+				description: string
+				version: string
+				domain: string
+				contact: { email: string }
+			}
+
+			test('return the instance infos v2', async () => {
+				const db = await makeDB()
+				await createPerson(domain, db, adminKEK, admin_email, {}, true)
+
+				const env = {
+					INSTANCE_TITLE: 'a',
+					ADMIN_EMAIL: 'b',
+					INSTANCE_DESCR: 'c',
+				} as Env
+				const res = await v2_instance.handleRequest(domain, db, env)
+				assert.equal(res.status, 200)
+				assertCORS(res)
+				assertJSON(res)
+
+				{
+					const data = await res.json<Data>()
+					assert.equal(data.rules.length, 0)
+					assert.equal(data.domain, domain)
+					assert.equal(data.title, 'a')
+					assert.equal(data.contact.email, 'b')
+					assert.equal(data.description, 'c')
+					assert(data.version.includes('Wildebeest'))
+				}
+			})
 		})
 	})
 })

config/versions.ts

@@ -5,6 +5,8 @@ export const MASTODON_API_VERSION = '4.0.2'
 
 export const WILDEBEEST_VERSION = packagejson.version
 
-export function getVersion(): string {
-	return `${MASTODON_API_VERSION} (compatible; Wildebeest ${WILDEBEEST_VERSION})`
+export function getVersion(domain?: string): string {
+	return `Wildebeest/${WILDEBEEST_VERSION} (Mastodon/${MASTODON_API_VERSION} compatible; +https://${
+		domain ?? 'github.com/cloudflare/wildebeest'
+	})`
 }