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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';
import type { OnApplicationShutdown } from '@nestjs/common';
export type RoleOptions = {
gtlAvailable: boolean;
ltlAvailable: boolean;
canPublicNote: boolean;
driveCapacityMb: number;
antennaLimit: number;
};
export const DEFAULT_ROLE: RoleOptions = {
gtlAvailable: true,
ltlAvailable: true,
canPublicNote: true,
driveCapacityMb: 100,
antennaLimit: 5,
};
@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,
) {
//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;
switch (type) {
case 'roleCreated': {
const cached = this.rolesCache.get(null);
if (cached) {
body.createdAt = new Date(body.createdAt);
body.updatedAt = new Date(body.updatedAt);
body.lastUsedAt = new Date(body.lastUsedAt);
cached.push(body);
}
break;
}
case 'roleUpdated': {
const cached = this.rolesCache.get(null);
if (cached) {
const i = cached.findIndex(x => x.id === body.id);
if (i > -1) {
body.createdAt = new Date(body.createdAt);
body.updatedAt = new Date(body.updatedAt);
body.lastUsedAt = new Date(body.lastUsedAt);
cached[i] = body;
}
}
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) {
body.createdAt = new Date(body.createdAt);
cached.push(body);
}
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;
}
}
}
@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({}));
return roles.filter(r => assignedRoleIds.includes(r.id));
}
@bindThis
public async getUserRoleOptions(userId: User['id'] | null): Promise<RoleOptions> {
const meta = await this.metaService.fetch();
const baseRoleOptions = { ...DEFAULT_ROLE, ...meta.defaultRoleOverride };
if (userId == null) return baseRoleOptions;
const roles = await this.getUserRoles(userId);
function getOptionValues(option: keyof RoleOptions) {
if (roles.length === 0) return [baseRoleOptions[option]];
return roles.map(role => (role.options[option] && (role.options[option].useDefault !== true)) ? role.options[option].value : baseRoleOptions[option]);
}
return {
gtlAvailable: getOptionValues('gtlAvailable').some(x => x === true),
ltlAvailable: getOptionValues('ltlAvailable').some(x => x === true),
canPublicNote: getOptionValues('canPublicNote').some(x => x === true),
driveCapacityMb: Math.max(...getOptionValues('driveCapacityMb')),
antennaLimit: Math.max(...getOptionValues('antennaLimit')),
};
}
@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);
}
}
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