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forked from mirror/misskey
misskey/packages/backend/src/remote/resolve-user.ts
2022-03-01 01:24:50 +09:00

111 lines
3.5 KiB
TypeScript

import { URL } from 'node:url';
import webFinger from './webfinger.js';
import config from '@/config/index.js';
import { createPerson, updatePerson } from './activitypub/models/person.js';
import { remoteLogger } from './logger.js';
import chalk from 'chalk';
import { User, IRemoteUser } from '@/models/entities/user.js';
import { Users } from '@/models/index.js';
import { toPuny } from '@/misc/convert-host.js';
const logger = remoteLogger.createSubLogger('resolve-user');
export async function resolveUser(username: string, host: string | null, option?: any, resync = false): Promise<User> {
const usernameLower = username.toLowerCase();
if (host == null) {
logger.info(`return local user: ${usernameLower}`);
return await Users.findOne({ usernameLower, host: null }).then(u => {
if (u == null) {
throw new Error('user not found');
} else {
return u;
}
});
}
host = toPuny(host);
if (config.host === host) {
logger.info(`return local user: ${usernameLower}`);
return await Users.findOne({ usernameLower, host: null }).then(u => {
if (u == null) {
throw new Error('user not found');
} else {
return u;
}
});
}
const user = await Users.findOne({ usernameLower, host }, option) as IRemoteUser | null;
const acctLower = `${usernameLower}@${host}`;
if (user == null) {
const self = await resolveSelf(acctLower);
logger.succ(`return new remote user: ${chalk.magenta(acctLower)}`);
return await createPerson(self.href);
}
// resyncオプション OR ユーザー情報が古い場合は、WebFilgerからやりなおして返す
if (resync || user.lastFetchedAt == null || Date.now() - user.lastFetchedAt.getTime() > 1000 * 60 * 60 * 24) {
// 繋がらないインスタンスに何回も試行するのを防ぐ, 後続の同様処理の連続試行を防ぐ ため 試行前にも更新する
await Users.update(user.id, {
lastFetchedAt: new Date(),
});
logger.info(`try resync: ${acctLower}`);
const self = await resolveSelf(acctLower);
if (user.uri !== self.href) {
// if uri mismatch, Fix (user@host <=> AP's Person id(IRemoteUser.uri)) mapping.
logger.info(`uri missmatch: ${acctLower}`);
logger.info(`recovery missmatch uri for (username=${username}, host=${host}) from ${user.uri} to ${self.href}`);
// validate uri
const uri = new URL(self.href);
if (uri.hostname !== host) {
throw new Error(`Invalid uri`);
}
await Users.update({
usernameLower,
host: host,
}, {
uri: self.href,
});
} else {
logger.info(`uri is fine: ${acctLower}`);
}
await updatePerson(self.href);
logger.info(`return resynced remote user: ${acctLower}`);
return await Users.findOne({ uri: self.href }).then(u => {
if (u == null) {
throw new Error('user not found');
} else {
return u;
}
});
}
logger.info(`return existing remote user: ${acctLower}`);
return user;
}
async function resolveSelf(acctLower: string) {
logger.info(`WebFinger for ${chalk.yellow(acctLower)}`);
const finger = await webFinger(acctLower).catch(e => {
logger.error(`Failed to WebFinger for ${chalk.yellow(acctLower)}: ${ e.statusCode || e.message }`);
throw new Error(`Failed to WebFinger for ${acctLower}: ${ e.statusCode || e.message }`);
});
const self = finger.links.find(link => link.rel != null && link.rel.toLowerCase() === 'self');
if (!self) {
logger.error(`Failed to WebFinger for ${chalk.yellow(acctLower)}: self link not found`);
throw new Error('self link not found');
}
return self;
}