pub-relay (#6341)

* pub-relay

* relay actorをApplicationにする

* Disable koa-compress

* Homeはリレーに送らない

* Disable debug

* UI

* cleanupなど

src/remote/activitypub/kernel/accept/follow.ts

@@ -2,6 +2,7 @@ import { IRemoteUser } from '../../../../models/entities/user';
 import accept from '../../../../services/following/requests/accept';
 import { IFollow } from '../../type';
 import DbResolver from '../../db-resolver';
+import { relayAccepted } from '../../../../services/relay';
 
 export default async (actor: IRemoteUser, activity: IFollow): Promise<string> => {
 	// ※ activityはこっちから投げたフォローリクエストなので、activity.actorは存在するローカルユーザーである必要がある
@@ -17,6 +18,12 @@ export default async (actor: IRemoteUser, activity: IFollow): Promise<string> =>
 		return `skip: follower is not a local user`;
 	}
 
+	// relay
+	const match = activity.id?.match(/follow-relay\/(\w+)/);
+	if (match) {
+		return await relayAccepted(match[1]);
+	}
+
 	await accept(actor, follower);
 	return `ok`;
 };

src/remote/activitypub/kernel/reject/follow.ts

@@ -2,6 +2,7 @@ import { IRemoteUser } from '../../../../models/entities/user';
 import reject from '../../../../services/following/requests/reject';
 import { IFollow } from '../../type';
 import DbResolver from '../../db-resolver';
+import { relayRejected } from '../../../../services/relay';
 
 export default async (actor: IRemoteUser, activity: IFollow): Promise<string> => {
 	// ※ activityはこっちから投げたフォローリクエストなので、activity.actorは存在するローカルユーザーである必要がある
@@ -17,6 +18,12 @@ export default async (actor: IRemoteUser, activity: IFollow): Promise<string> =>
 		return `skip: follower is not a local user`;
 	}
 
+	// relay
+	const match = activity.id?.match(/follow-relay\/(\w+)/);
+	if (match) {
+		return await relayRejected(match[1]);
+	}
+
 	await reject(actor, follower);
 	return `ok`;
 };

src/remote/activitypub/misc/ld-signature.ts

@@ -70,6 +70,7 @@ export class LdSignature {
 		const transformedData = { ...data };
 		delete transformedData['signature'];
 		const cannonidedData = await this.normalize(transformedData);
+		if (this.debug) console.debug(`cannonidedData: ${cannonidedData}`);
 		const documentHash = this.sha256(cannonidedData);
 		const verifyData = `${optionsHash}${documentHash}`;
 		return verifyData;

src/remote/activitypub/renderer/follow-relay.ts

@@ -0,0 +1,14 @@
+import config from '../../../config';
+import { Relay } from '../../../models/entities/relay';
+import { ILocalUser } from '../../../models/entities/user';
+
+export function renderFollowRelay(relay: Relay, relayActor: ILocalUser) {
+	const follow = {
+		id: `${config.url}/activities/follow-relay/${relay.id}`,
+		type: 'Follow',
+		actor: `${config.url}/users/${relayActor.id}`,
+		object: 'https://www.w3.org/ns/activitystreams#Public'
+	};
+
+	return follow;
+}

src/remote/activitypub/renderer/index.ts

@@ -1,7 +1,12 @@
 import config from '../../../config';
 import { v4 as uuid } from 'uuid';
+import { IActivity } from '../type';
+import { LdSignature } from '../misc/ld-signature';
+import { ILocalUser } from '../../../models/entities/user';
+import { UserKeypairs } from '../../../models';
+import { ensure } from '../../../prelude/ensure';
 
-export const renderActivity = (x: any) => {
+export const renderActivity = (x: any): IActivity | null => {
 	if (x == null) return null;
 
 	if (x !== null && typeof x === 'object' && x.id == null) {
@@ -11,8 +16,46 @@ export const renderActivity = (x: any) => {
 	return Object.assign({
 		'@context': [
 			'https://www.w3.org/ns/activitystreams',
-			'https://w3id.org/security/v1',
-			{ Hashtag: 'as:Hashtag' }
+			'https://w3id.org/security/v1'
 		]
 	}, x);
 };
+
+export const attachLdSignature = async (activity: any, user: ILocalUser): Promise<IActivity | null> => {
+	if (activity == null) return null;
+
+	const keypair = await UserKeypairs.findOne({
+		userId: user.id
+	}).then(ensure);
+
+	const obj = {
+		// as non-standards
+		manuallyApprovesFollowers: 'as:manuallyApprovesFollowers',
+		sensitive: 'as:sensitive',
+		Hashtag: 'as:Hashtag',
+		quoteUrl: 'as:quoteUrl',
+		// Mastodon
+		toot: 'http://joinmastodon.org/ns#',
+		Emoji: 'toot:Emoji',
+		featured: 'toot:featured',
+		// schema
+		schema: 'http://schema.org#',
+		PropertyValue: 'schema:PropertyValue',
+		value: 'schema:value',
+		// Misskey
+		misskey: `${config.url}/ns#`,
+		'_misskey_content': 'misskey:_misskey_content',
+		'_misskey_quote': 'misskey:_misskey_quote',
+		'_misskey_reaction': 'misskey:_misskey_reaction',
+		'_misskey_votes': 'misskey:_misskey_votes',
+		'_misskey_talk': 'misskey:_misskey_talk',
+	};
+
+	activity['@context'].push(obj);
+
+	const ldSignature = new LdSignature();
+	ldSignature.debug = false;
+	activity = await ldSignature.signRsaSignature2017(activity, keypair.privateKey, `${config.url}/users/${user.id}#main-key`);
+
+	return activity;
+};

src/remote/activitypub/renderer/person.ts

@@ -13,6 +13,7 @@ import { ensure } from '../../../prelude/ensure';
 
 export async function renderPerson(user: ILocalUser) {
 	const id = `${config.url}/users/${user.id}`;
+	const isSystem = !!user.username.match(/\./);
 
 	const [avatar, banner, profile] = await Promise.all([
 		user.avatarId ? DriveFiles.findOne(user.avatarId) : Promise.resolve(undefined),
@@ -52,7 +53,7 @@ export async function renderPerson(user: ILocalUser) {
 	const keypair = await UserKeypairs.findOne(user.id).then(ensure);
 
 	return {
-		type: user.isBot ? 'Service' : 'Person',
+		type: isSystem ? 'Application' : user.isBot ? 'Service' : 'Person',
 		id,
 		inbox: `${id}/inbox`,
 		outbox: `${id}/outbox`,