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hotomoe/packages/backend/src/core/RoleService.ts

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import { Inject, Injectable } from '@nestjs/common';
import Redis from 'ioredis';
import { In } from 'typeorm';
import type { Role, RoleAssignment, RoleAssignmentsRepository, RolesRepository, UsersRepository } from '@/models/index.js';
import { Cache } from '@/misc/cache.js';
import type { CacheableLocalUser, CacheableUser, ILocalUser, User } from '@/models/entities/User.js';
import { DI } from '@/di-symbols.js';
import { bindThis } from '@/decorators.js';
import { MetaService } from '@/core/MetaService.js';
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import { UserCacheService } from '@/core/UserCacheService.js';
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import type { RoleCondFormulaValue } from '@/models/entities/Role.js';
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import { UserEntityService } from '@/core/entities/UserEntityService.js';
import { StreamMessages } from '@/server/api/stream/types.js';
import type { OnApplicationShutdown } from '@nestjs/common';
export type RolePolicies = {
gtlAvailable: boolean;
ltlAvailable: boolean;
canPublicNote: boolean;
canInvite: boolean;
canManageCustomEmojis: boolean;
canHideAds: boolean;
driveCapacityMb: number;
pinLimit: number;
antennaLimit: number;
wordMuteLimit: number;
webhookLimit: number;
clipLimit: number;
noteEachClipsLimit: number;
userListLimit: number;
userEachUserListsLimit: number;
rateLimitFactor: number;
};
export const DEFAULT_POLICIES: RolePolicies = {
gtlAvailable: true,
ltlAvailable: true,
canPublicNote: true,
canInvite: false,
canManageCustomEmojis: false,
canHideAds: false,
driveCapacityMb: 100,
pinLimit: 5,
antennaLimit: 5,
wordMuteLimit: 200,
webhookLimit: 3,
clipLimit: 10,
noteEachClipsLimit: 200,
userListLimit: 10,
userEachUserListsLimit: 50,
rateLimitFactor: 1,
};
@Injectable()
export class RoleService implements OnApplicationShutdown {
private rolesCache: Cache<Role[]>;
private roleAssignmentByUserIdCache: Cache<RoleAssignment[]>;
constructor(
@Inject(DI.redisSubscriber)
private redisSubscriber: Redis.Redis,
@Inject(DI.usersRepository)
private usersRepository: UsersRepository,
@Inject(DI.rolesRepository)
private rolesRepository: RolesRepository,
@Inject(DI.roleAssignmentsRepository)
private roleAssignmentsRepository: RoleAssignmentsRepository,
private metaService: MetaService,
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private userCacheService: UserCacheService,
private userEntityService: UserEntityService,
) {
//this.onMessage = this.onMessage.bind(this);
this.rolesCache = new Cache<Role[]>(Infinity);
this.roleAssignmentByUserIdCache = new Cache<RoleAssignment[]>(Infinity);
this.redisSubscriber.on('message', this.onMessage);
}
@bindThis
private async onMessage(_: string, data: string): Promise<void> {
const obj = JSON.parse(data);
if (obj.channel === 'internal') {
const { type, body } = obj.message as StreamMessages['internal']['payload'];
switch (type) {
case 'roleCreated': {
const cached = this.rolesCache.get(null);
if (cached) {
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cached.push({
...body,
createdAt: new Date(body.createdAt),
updatedAt: new Date(body.updatedAt),
lastUsedAt: new Date(body.lastUsedAt),
});
}
break;
}
case 'roleUpdated': {
const cached = this.rolesCache.get(null);
if (cached) {
const i = cached.findIndex(x => x.id === body.id);
if (i > -1) {
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cached[i] = {
...body,
createdAt: new Date(body.createdAt),
updatedAt: new Date(body.updatedAt),
lastUsedAt: new Date(body.lastUsedAt),
};
}
}
break;
}
case 'roleDeleted': {
const cached = this.rolesCache.get(null);
if (cached) {
this.rolesCache.set(null, cached.filter(x => x.id !== body.id));
}
break;
}
case 'userRoleAssigned': {
const cached = this.roleAssignmentByUserIdCache.get(body.userId);
if (cached) {
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cached.push({
...body,
createdAt: new Date(body.createdAt),
});
}
break;
}
case 'userRoleUnassigned': {
const cached = this.roleAssignmentByUserIdCache.get(body.userId);
if (cached) {
this.roleAssignmentByUserIdCache.set(body.userId, cached.filter(x => x.id !== body.id));
}
break;
}
default:
break;
}
}
}
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@bindThis
private evalCond(user: User, value: RoleCondFormulaValue): boolean {
try {
switch (value.type) {
case 'and': {
return value.values.every(v => this.evalCond(user, v));
}
case 'or': {
return value.values.some(v => this.evalCond(user, v));
}
case 'not': {
return !this.evalCond(user, value.value);
}
case 'isLocal': {
return this.userEntityService.isLocalUser(user);
}
case 'isRemote': {
return this.userEntityService.isRemoteUser(user);
}
case 'createdLessThan': {
return user.createdAt.getTime() > (Date.now() - (value.sec * 1000));
}
case 'createdMoreThan': {
return user.createdAt.getTime() < (Date.now() - (value.sec * 1000));
}
case 'followersLessThanOrEq': {
return user.followersCount <= value.value;
}
case 'followersMoreThanOrEq': {
return user.followersCount >= value.value;
}
case 'followingLessThanOrEq': {
return user.followingCount <= value.value;
}
case 'followingMoreThanOrEq': {
return user.followingCount >= value.value;
}
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default:
return false;
}
} catch (err) {
// TODO: log error
return false;
}
}
@bindThis
public async getUserRoles(userId: User['id']) {
const assigns = await this.roleAssignmentByUserIdCache.fetch(userId, () => this.roleAssignmentsRepository.findBy({ userId }));
const assignedRoleIds = assigns.map(x => x.roleId);
const roles = await this.rolesCache.fetch(null, () => this.rolesRepository.findBy({}));
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const assignedRoles = roles.filter(r => assignedRoleIds.includes(r.id));
const user = roles.some(r => r.target === 'conditional') ? await this.userCacheService.findById(userId) : null;
const matchedCondRoles = roles.filter(r => r.target === 'conditional' && this.evalCond(user!, r.condFormula));
return [...assignedRoles, ...matchedCondRoles];
}
/**
*
*/
@bindThis
public async getUserBadgeRoles(userId: User['id']) {
const assigns = await this.roleAssignmentByUserIdCache.fetch(userId, () => this.roleAssignmentsRepository.findBy({ userId }));
const assignedRoleIds = assigns.map(x => x.roleId);
const roles = await this.rolesCache.fetch(null, () => this.rolesRepository.findBy({}));
const assignedBadgeRoles = roles.filter(r => r.asBadge && assignedRoleIds.includes(r.id));
const badgeCondRoles = roles.filter(r => r.asBadge && (r.target === 'conditional'));
if (badgeCondRoles.length > 0) {
const user = roles.some(r => r.target === 'conditional') ? await this.userCacheService.findById(userId) : null;
const matchedBadgeCondRoles = badgeCondRoles.filter(r => this.evalCond(user!, r.condFormula));
return [...assignedBadgeRoles, ...matchedBadgeCondRoles];
} else {
return assignedBadgeRoles;
}
}
@bindThis
public async getUserPolicies(userId: User['id'] | null): Promise<RolePolicies> {
const meta = await this.metaService.fetch();
const basePolicies = { ...DEFAULT_POLICIES, ...meta.policies };
if (userId == null) return basePolicies;
const roles = await this.getUserRoles(userId);
function calc<T extends keyof RolePolicies>(name: T, aggregate: (values: RolePolicies[T][]) => RolePolicies[T]) {
if (roles.length === 0) return basePolicies[name];
const policies = roles.map(role => role.policies[name] ?? { priority: 0, useDefault: true });
const p2 = policies.filter(policy => policy.priority === 2);
if (p2.length > 0) return aggregate(p2.map(policy => policy.useDefault ? basePolicies[name] : policy.value));
const p1 = policies.filter(policy => policy.priority === 1);
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if (p1.length > 0) return aggregate(p1.map(policy => policy.useDefault ? basePolicies[name] : policy.value));
return aggregate(policies.map(policy => policy.useDefault ? basePolicies[name] : policy.value));
}
return {
gtlAvailable: calc('gtlAvailable', vs => vs.some(v => v === true)),
ltlAvailable: calc('ltlAvailable', vs => vs.some(v => v === true)),
canPublicNote: calc('canPublicNote', vs => vs.some(v => v === true)),
canInvite: calc('canInvite', vs => vs.some(v => v === true)),
canManageCustomEmojis: calc('canManageCustomEmojis', vs => vs.some(v => v === true)),
canHideAds: calc('canHideAds', vs => vs.some(v => v === true)),
driveCapacityMb: calc('driveCapacityMb', vs => Math.max(...vs)),
pinLimit: calc('pinLimit', vs => Math.max(...vs)),
antennaLimit: calc('antennaLimit', vs => Math.max(...vs)),
wordMuteLimit: calc('wordMuteLimit', vs => Math.max(...vs)),
webhookLimit: calc('webhookLimit', vs => Math.max(...vs)),
clipLimit: calc('clipLimit', vs => Math.max(...vs)),
noteEachClipsLimit: calc('noteEachClipsLimit', vs => Math.max(...vs)),
userListLimit: calc('userListLimit', vs => Math.max(...vs)),
userEachUserListsLimit: calc('userEachUserListsLimit', vs => Math.max(...vs)),
rateLimitFactor: calc('rateLimitFactor', vs => Math.max(...vs)),
};
}
@bindThis
public async isModerator(user: { id: User['id']; isRoot: User['isRoot'] } | null): Promise<boolean> {
if (user == null) return false;
return user.isRoot || (await this.getUserRoles(user.id)).some(r => r.isModerator || r.isAdministrator);
}
@bindThis
public async isAdministrator(user: { id: User['id']; isRoot: User['isRoot'] } | null): Promise<boolean> {
if (user == null) return false;
return user.isRoot || (await this.getUserRoles(user.id)).some(r => r.isAdministrator);
}
@bindThis
public async getModeratorIds(includeAdmins = true): Promise<User['id'][]> {
const roles = await this.rolesCache.fetch(null, () => this.rolesRepository.findBy({}));
const moderatorRoles = includeAdmins ? roles.filter(r => r.isModerator || r.isAdministrator) : roles.filter(r => r.isModerator);
const assigns = moderatorRoles.length > 0 ? await this.roleAssignmentsRepository.findBy({
roleId: In(moderatorRoles.map(r => r.id)),
}) : [];
// TODO: isRootなアカウントも含める
return assigns.map(a => a.userId);
}
@bindThis
public async getModerators(includeAdmins = true): Promise<User[]> {
const ids = await this.getModeratorIds(includeAdmins);
const users = ids.length > 0 ? await this.usersRepository.findBy({
id: In(ids),
}) : [];
return users;
}
@bindThis
public async getAdministratorIds(): Promise<User['id'][]> {
const roles = await this.rolesCache.fetch(null, () => this.rolesRepository.findBy({}));
const administratorRoles = roles.filter(r => r.isAdministrator);
const assigns = administratorRoles.length > 0 ? await this.roleAssignmentsRepository.findBy({
roleId: In(administratorRoles.map(r => r.id)),
}) : [];
// TODO: isRootなアカウントも含める
return assigns.map(a => a.userId);
}
@bindThis
public async getAdministrators(): Promise<User[]> {
const ids = await this.getAdministratorIds();
const users = ids.length > 0 ? await this.usersRepository.findBy({
id: In(ids),
}) : [];
return users;
}
@bindThis
public onApplicationShutdown(signal?: string | undefined) {
this.redisSubscriber.off('message', this.onMessage);
}
}