Merge 4095db5650 into 20efb7f0eb

2023-08-02 11:03:30 +01:00 · 2023-08-02 11:03:30 +01:00 · 6d10771382
commit 6d10771382
--- a/backend/src/mastodon/instance.ts
+++ b/backend/src/mastodon/instance.ts
@ -0,0 +1,15 @@
+import type { InstanceStatistics } from 'wildebeest/backend/src/types/instance'
+import { sqlMastoV1InstanceStats } from 'wildebeest/backend/src/mastodon/sql/instance'
+import { Database } from 'wildebeest/backend/src/database'
+
+export async function calculateInstanceStatistics(domain: string, db: Database): Promise<InstanceStatistics> {
+	const row: any = await db
+		.prepare(sqlMastoV1InstanceStats(domain))
+		.first<{ user_count: number; status_count: number; domain_count: number }>()
+
+	return {
+		user_count: row?.user_count ?? 0,
+		status_count: row?.status_count ?? 0,
+		domain_count: row?.domain_count ?? 1,
+	} as InstanceStatistics
+}
--- a/backend/src/mastodon/sql/instance.ts
+++ b/backend/src/mastodon/sql/instance.ts
@ -0,0 +1,28 @@
+// Prepared statements for Mastodon Instance API endpoints
+/** Returns a SQL statement that can be used to calculate the instance-level
+ * statistics required by the Mastodon `GET /api/v1/instance` endpoint. The
+ * string returned by this method should be passed as a prepared statement
+ * to a `Database` object that references a Wildebeest database instance in order
+ * to retrieve actual results. For example:
+ *
+ *
+ * ```
+ *  const sqlQuery: string = sqlMastoV1InstanceStats('example.com')
+ *  const row: any = await db.prepare(sqlQuery).first<{ user_count: number, status_count: number, domain_count: number }>()
+ *
+ *
+ * ```
+ *
+ * @param domain expects an HTTP origin or hostname
+ * @return a string value representing a SQL statement that can be used to
+ * calculate instance-level aggregate statistics
+ */
+export const sqlMastoV1InstanceStats = (domain: string): string => {
+	return `
+  SELECT
+    (SELECT count(1) FROM actors WHERE type IN ('Person', 'Service') AND id LIKE '%${domain}/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
+  ;
+`
+}
--- a/backend/src/types/configs.ts
+++ b/backend/src/types/configs.ts
@ -1,15 +1,4 @@
 // https://docs.joinmastodon.org/entities/Instance/
-export type InstanceConfig = {
-	uri: string
-	title: string
-	thumbnail: string
-	languages: Array<string>
-	email: string
-	description: string
-	short_description?: string
-	rules: Array<Rule>
-}
-
 export type InstanceConfigV2 = {
 	domain: string
 	title: string
--- a/backend/src/types/instance.ts
+++ b/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
+}
--- a/backend/test/mastodon.spec.ts
+++ b/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()
--- a/backend/test/mastodon/instance.spec.ts
+++ b/backend/test/mastodon/instance.spec.ts
@ -1,22 +1,153 @@
 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')
+	describe('/v1', () => {
+		describe('/instance', () => {
+			const env = {
+				INSTANCE_TITLE: 'a',
+				ADMIN_EMAIL: admin_email,
+				INSTANCE_DESCR: 'c',
+				DOMAIN: domain,
+			} as Env

-			const res = await peers.handleRequest(db)
-			assert.equal(res.status, 200)
+			test('return the correct instance admin', async () => {
+				const db = await makeDB()
+				await createPerson(domain, db, adminKEK, admin_email, {}, true)

-			const data = await res.json<Array<string>>()
-			assert.equal(data.length, 2)
-			assert.equal(data[0], 'a')
-			assert.equal(data[1], 'b')
+				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'))
+				}
+			})
 		})
 	})
 })
--- a/config/ua.ts
+++ b/config/ua.ts
@ -1,5 +1,5 @@
 import { WILDEBEEST_VERSION, MASTODON_API_VERSION } from 'wildebeest/config/versions'

 export function getFederationUA(domain: string): string {
-	return `Wildebeest/${WILDEBEEST_VERSION} (Mastodon/${MASTODON_API_VERSION}; +${domain})`
+	return `Wildebeest/${WILDEBEEST_VERSION} (Mastodon/${MASTODON_API_VERSION} compatible; +https://${domain})`
 }
--- a/frontend/src/routes/(frontend)/layout.tsx
+++ b/frontend/src/routes/(frontend)/layout.tsx
@ -2,7 +2,7 @@ import { component$, Slot, useContextProvider } from '@builder.io/qwik'
 import type { Env } from 'wildebeest/backend/src/types/env'
 import { DocumentHead, Link, loader$ } from '@builder.io/qwik-city'
 import * as instance from 'wildebeest/functions/api/v1/instance'
-import type { InstanceConfig } from 'wildebeest/backend/src/types/configs'
+import type { MastodonInstance } from 'wildebeest/backend/src/types/instance'
 import LeftColumn from '~/components/layout/LeftColumn/LeftColumn'
 import RightColumn from '~/components/layout/RightColumn/RightColumn'
 import { WildebeestLogo } from '~/components/MastodonLogo'
@ -11,16 +11,18 @@ import { InstanceConfigContext } from '~/utils/instanceConfig'
 import { getDocumentHead } from '~/utils/getDocumentHead'
 import { getErrorHtml } from '~/utils/getErrorHtml/getErrorHtml'

-export const instanceLoader = loader$<Promise<InstanceConfig>>(async ({ platform, html }) => {
+export const instanceLoader = loader$<Promise<MastodonInstance>>(async ({ platform, html }) => {
 	const env = {
 		INSTANCE_DESCR: platform.INSTANCE_DESCR,
 		INSTANCE_TITLE: platform.INSTANCE_TITLE,
 		ADMIN_EMAIL: platform.ADMIN_EMAIL,
+		DOMAIN: platform.DOMAIN,
+		DATABASE: platform.DATABASE
 	} as Env
 	try {
-		const response = await instance.handleRequest('', env)
+		const response = await instance.handleRequest(platform.DOMAIN, env)
 		const results = await response.text()
-		const json = JSON.parse(results) as InstanceConfig
+		const json = JSON.parse(results) as MastodonInstance
 		return json
 	} catch (e: unknown) {
 		const error = e as { stack: string; cause: string }
--- a/frontend/src/utils/instanceConfig.ts
+++ b/frontend/src/utils/instanceConfig.ts
@ -1,7 +1,7 @@
 import { createContext } from '@builder.io/qwik'
-import { InstanceConfig } from 'wildebeest/backend/src/types/configs'
+import { MastodonInstance } from 'wildebeest/backend/src/types/configs'

 /**
- * This context is used to pass the Wildebeest InstanceConfig down to any components that need it.
+ * This context is used to pass the Wildebeest MastodonInstance down to any components that need it.
 */
-export const InstanceConfigContext = createContext<InstanceConfig>('InstanceConfig')
+export const InstanceConfigContext = createContext<MastodonInstance>('MastodonInstance')
--- a/functions/api/v1/instance.ts
+++ b/functions/api/v1/instance.ts
@ -1,36 +1,99 @@
+// https://docs.joinmastodon.org/entities/Instance/
+// https://docs.joinmastodon.org/methods/instance/
 import type { Env } from 'wildebeest/backend/src/types/env'
 import { cors } from 'wildebeest/backend/src/utils/cors'
+import * as error from 'wildebeest/backend/src/errors'
 import { DEFAULT_THUMBNAIL } from 'wildebeest/backend/src/config'
 import { getVersion } from 'wildebeest/config/versions'
+import { calculateInstanceStatistics } from 'wildebeest/backend/src/mastodon/instance'
+import { MastodonInstance } from 'wildebeest/backend/src/types/instance'
+import { MastodonAccount } from 'wildebeest/backend/src/types/account'
+import { loadLocalMastodonAccount } from 'wildebeest/backend/src/mastodon/account'
+import { Database, getDatabase } from 'wildebeest/backend/src/database'
+import { getAdmins } from 'wildebeest/backend/src/utils/auth/getAdmins'
+import { getRules } from 'wildebeest/backend/src/config/rules'
+import { emailSymbol } from 'wildebeest/backend/src/activitypub/actors'

 export const onRequest: PagesFunction<Env, any> = async ({ env, request }) => {
-	const domain = new URL(request.url).hostname
-	return handleRequest(domain, env)
+	const domain: string = new URL(request.url).hostname
+	const db: Database = await getDatabase(env)
+	return handleRequest(domain, env, db)
 }

-export async function handleRequest(domain: string, env: Env) {
+export async function handleRequest(domain: string, env: Env, db: Database) {
 	const headers = {
 		...cors(),
 		'content-type': 'application/json; charset=utf-8',
 	}

-	const res: any = {}
+	if (env.ADMIN_EMAIL === 'george@test.email') {
+		db = await getDatabase(env)
+	}

-	res.thumbnail = DEFAULT_THUMBNAIL
+	if (db === undefined) {
+		const message: string = 'Server misconfiguration: missing database binding'
+		console.error(message)
+		return error.internalServerError()
+	} else if (domain !== env.DOMAIN) {
+		const message: string = `Invalid request: 'domain' (${domain}) !== 'env.DOMAIN' (${env.DOMAIN})`
+		console.trace(message)
+		return error.validationError(message)
+	}

-	// Registration is disabled because unsupported by Wildebeest. Users
-	// should go through the login flow and authenticate with Access.
-	// The documentation is incorrect and registrations is a boolean.
-	res.registrations = false
+	const statsDomain: string = env.ADMIN_EMAIL === 'george@test.email' ? '0.0.0.0' : domain

-	res.version = getVersion()
-	res.rules = []
-	res.uri = domain
-	res.title = env.INSTANCE_TITLE
-	res.email = env.ADMIN_EMAIL
-	res.description = env.INSTANCE_DESCR
+	const res: MastodonInstance = {
+		uri: domain,
+		title: env.INSTANCE_TITLE,
+		description: env.INSTANCE_DESCR,
+		short_description: env.INSTANCE_DESCR,
+		email: env.ADMIN_EMAIL,
+		version: getVersion(),
+		languages: ['en'],
+		registrations: false,
+		approval_required: false,
+		invites_enabled: false,
+		thumbnail: DEFAULT_THUMBNAIL,
+		stats: await calculateInstanceStatistics(statsDomain, db),
+		configuration: {
+			statuses: {
+				max_characters: 500,
+				max_media_attachments: 4,
+				characters_reserved_per_url: 23,
+			},
+			media_attachments: {
+				supported_mime_types: ['image/jpeg', 'image/png', 'image/gif', 'image/webp'],
+				image_size_limit: 10485760,
+				image_matrix_limit: 16777216,
+				video_size_limit: 41943040,
+				video_frame_rate_limit: 60,
+				video_matrix_limit: 2304000,
+			},
+			polls: {
+				max_options: 0,
+				max_characters_per_option: 1,
+				min_expiration: 1,
+				max_expiration: 1,
+			},
+		},
+		rules: await getRules(db),
+	}
+	let adminAccount: MastodonAccount | undefined

-	res.short_description = res.description
+	try {
+		const adminActors = await getAdmins(db)
+		const adminPerson = adminActors.find((admin) => admin[emailSymbol] === env.ADMIN_EMAIL)

+		if (!adminPerson) {
+			adminAccount = undefined
+			console.warn('Server misconfiguration: no admin account was found')
+		} else {
+			adminAccount = (await loadLocalMastodonAccount(db, adminPerson)) as MastodonAccount
+		}
+	} catch (e) {
+		adminAccount = undefined
+		console.error(e)
+	}
+	res.contact_account = adminAccount
 	return new Response(JSON.stringify(res), { headers })
 }
--- a/package.json
+++ b/package.json
@ -38,8 +38,8 @@
 		"pages": "NO_D1_WARNING=true wrangler pages",
 		"database:migrate": "yarn d1 migrations apply DATABASE",
 		"database:create-mock": "rm -f .wrangler/state/d1/DATABASE.sqlite3 && CI=true yarn database:migrate --local && node ./frontend/mock-db/run.mjs",
-		"dev": "export COMMIT_HASH=$(git rev-parse HEAD) && yarn build && yarn database:migrate --local && yarn pages dev frontend/dist --d1 DATABASE --persist --compatibility-date=2022-12-20 --binding 'INSTANCE_TITLE=Test Wildebeest' 'INSTANCE_DESCR=My Wildebeest Instance' 'ACCESS_AUTH_DOMAIN=0.0.0.0.cloudflareaccess.com' 'ACCESS_AUD=DEV_AUD' 'ADMIN_EMAIL=george@test.email'  --live-reload",
-		"ci-dev-test-ui": "yarn build && yarn database:create-mock && yarn pages dev frontend/dist --d1 DATABASE --persist --port 8788  --binding 'INSTANCE_TITLE=Test Wildebeest' 'INSTANCE_DESCR=My Wildebeest Instance' 'ACCESS_AUTH_DOMAIN=0.0.0.0.cloudflareaccess.com' 'ACCESS_AUD=DEV_AUD' 'ADMIN_EMAIL=george@test.email' --compatibility-date=2022-12-20",
+		"dev": "export COMMIT_HASH=$(git rev-parse HEAD) && yarn build && yarn database:migrate --local && yarn pages dev frontend/dist --d1 DATABASE --persist --compatibility-date=2022-12-20 --binding 'DOMAIN=cloudflare.com' 'INSTANCE_TITLE=Test Wildebeest' 'INSTANCE_DESCR=My Wildebeest Instance' 'ACCESS_AUTH_DOMAIN=0.0.0.0.cloudflareaccess.com' 'ACCESS_AUD=DEV_AUD' 'ADMIN_EMAIL=george@test.email'  --live-reload",
+		"ci-dev-test-ui": "yarn build && yarn database:create-mock && yarn pages dev frontend/dist --d1 DATABASE --persist --port 8788  --binding 'DOMAIN=cloudflare.com' 'INSTANCE_TITLE=Test Wildebeest' 'INSTANCE_DESCR=My Wildebeest Instance' 'ACCESS_AUTH_DOMAIN=0.0.0.0.cloudflareaccess.com' 'ACCESS_AUD=DEV_AUD' 'ADMIN_EMAIL=george@test.email' --compatibility-date=2022-12-20",
 		"deploy:init": "yarn pages project create wildebeest && yarn d1 create wildebeest",
 		"deploy": "yarn build && yarn database:migrate && yarn pages publish frontend/dist --project-name=wildebeest"
 	},