Files
LingChair/server/api/ChatApi.ts
2025-10-06 02:09:30 +08:00

331 lines
11 KiB
TypeScript

import { Buffer } from "node:buffer"
import Chat from "../data/Chat.ts"
import FileManager from "../data/FileManager.ts"
import MessagesManager from "../data/MessagesManager.ts"
import User from "../data/User.ts"
import UserChatLinker from "../data/UserChatLinker.ts"
import ApiManager from "./ApiManager.ts"
import BaseApi from "./BaseApi.ts"
import TokenManager from "./TokenManager.ts"
import ChatPrivate from "../data/ChatPrivate.ts"
import ChatGroup from "../data/ChatGroup.ts"
export default class ChatApi extends BaseApi {
override getName(): string {
return "Chat"
}
override onInit(): void {
/**
* 獲取對話訊息
* @param token 令牌
* @param target 目標對話
*/
this.registerEvent("Chat.getInfo", (args, { deviceId }) => {
if (this.checkArgsMissing(args, ['token', 'target'])) return {
msg: "參數缺失",
code: 400,
}
const token = TokenManager.decode(args.token as string)
if (!this.checkToken(token, deviceId)) return {
code: 401,
msg: "令牌無效",
}
const chat = Chat.findById(args.target as string)
if (chat == null) return {
code: 404,
msg: "對話不存在",
}
if (!UserChatLinker.checkUserIsLinkedToChat(token.author, chat!.bean.id)) return {
code: 400,
msg: "用戶無權訪問該對話",
}
// 私聊
if (chat!.bean.type == 'private') {
const mine = User.findById(token.author) as User
return {
code: 200,
msg: "成功",
data: {
id: args.target as string,
type: chat.bean.type,
title: chat.getTitle(mine),
avatar: chat.getAvatarFileHash(mine) ? "uploaded_files/" + chat.getAvatarFileHash(mine) : undefined
}
}
}
if (chat!.bean.type == 'group') {
return {
code: 200,
msg: "成功",
data: {
id: args.target as string,
type: chat.bean.type,
title: chat.getTitle(),
avatar: chat.getAvatarFileHash() ? "uploaded_files/" + chat.getAvatarFileHash() : undefined
}
}
}
return {
code: 501,
msg: "not implmented",
}
})
/**
* 發送訊息
* @param token 令牌
* @param target 目標對話
* @param text 消息内容
*/
this.registerEvent("Chat.sendMessage", (args, { deviceId }) => {
if (this.checkArgsMissing(args, ['token', 'target', 'text'])) return {
msg: "參數缺失",
code: 400,
}
const token = TokenManager.decode(args.token as string)
if (!this.checkToken(token, deviceId)) return {
code: 401,
msg: "令牌無效",
}
const chat = Chat.findById(args.target as string)
if (chat == null) return {
code: 404,
msg: "對話不存在",
}
if (!UserChatLinker.checkUserIsLinkedToChat(token.author, chat!.bean.id)) return {
code: 400,
msg: "用戶無權訪問該對話",
}
const msg = {
text: args.text as string,
time: Date.now(),
user_id: token.author,
}
const id = MessagesManager.getInstanceForChat(chat).addMessage(msg)
const users: string[] = UserChatLinker.getChatMembers(chat.bean.id)
for (const user of users) {
if (ApiManager.checkUserIsOnline(user)) {
const userInst = User.findById(user)
userInst?.updateRecentChat(chat.bean.id, args.text as string)
const sockets = ApiManager.getUserClientSockets(user)
for (const socket of Object.keys(sockets))
this.emitToClient(sockets[socket], 'Client.onMessage', {
chat: chat.bean.id,
msg: {
...msg,
id
}
})
} else {
// TODO: EventStore
}
}
return {
code: 200,
msg: "成功",
}
})
/**
* 拉取歷史訊息
* @param token 令牌
* @param target 目標對話
* @param page 頁面
*/
this.registerEvent("Chat.getMessageHistory", (args, { deviceId }) => {
if (this.checkArgsMissing(args, ['token', 'target', 'page'])) return {
msg: "參數缺失",
code: 400,
}
const token = TokenManager.decode(args.token as string)
if (!this.checkToken(token, deviceId)) return {
code: 401,
msg: "令牌無效",
}
const chat = Chat.findById(args.target as string)
if (chat == null) return {
code: 404,
msg: "對話不存在",
}
if (!UserChatLinker.checkUserIsLinkedToChat(token.author, chat!.bean.id)) return {
code: 400,
msg: "用戶無權訪問該對話",
}
return {
code: 200,
msg: "成功",
data: {
messages: MessagesManager.getInstanceForChat(chat).getMessagesWithPage(15, args.page as number),
},
}
})
/**
* 上傳文件
* @param token 令牌
* @param target 目標對話
* @param file_name 文件名稱
* @param data 文件二進制數據
*/
this.registerEvent("Chat.uploadFile", async (args, { deviceId }) => {
if (this.checkArgsMissing(args, ['token', 'target', 'data', 'file_name'])) return {
msg: "參數缺失",
code: 400,
}
const token = TokenManager.decode(args.token as string)
if (!this.checkToken(token, deviceId)) return {
code: 401,
msg: "令牌無效",
}
const chat = Chat.findById(args.target as string)
if (chat == null) return {
code: 404,
msg: "對話不存在",
}
if (!UserChatLinker.checkUserIsLinkedToChat(token.author, chat!.bean.id)) return {
code: 400,
msg: "用戶無權訪問該對話",
}
const file = await FileManager.uploadFile(args.file_name as string, args.data as Buffer<ArrayBufferLike>, args.target as string)
return {
code: 200,
msg: "成功",
data: {
file_path: 'uploaded_files/' + file.getHash()
},
}
})
/**
* 获取私聊的 ChatId
* @param token 令牌
* @param target 目標用户
*/
this.registerEvent("Chat.getIdForPrivate", (args, { deviceId }) => {
if (this.checkArgsMissing(args, ['token', 'target'])) return {
msg: "參數缺失",
code: 400,
}
const token = TokenManager.decode(args.token as string)
if (!this.checkToken(token, deviceId)) return {
code: 401,
msg: "令牌無效",
}
const user = User.findById(token.author) as User
const targetUser = User.findById(args.target as string) as User
if (targetUser == null) {
return {
msg: "找不到用戶",
code: 404,
}
}
const chat = ChatPrivate.findOrCreateForPrivate(user, targetUser)
return {
code: 200,
msg: '成功',
data: {
chat_id: chat.bean.id,
}
}
})
/**
* 创建群组
* @param token 令牌
* @param title 名称
* @param [id] 群组 ID
*/
this.registerEvent("Chat.createGroup", (args, { deviceId }) => {
if (this.checkArgsMissing(args, ['token', 'title'])) return {
msg: "參數缺失",
code: 400,
}
if (this.checkArgsEmpty(args, ['title'])) return {
msg: "參數不得為空",
code: 400,
}
const token = TokenManager.decode(args.token as string)
if (!this.checkToken(token, deviceId)) return {
code: 401,
msg: "令牌無效",
}
const user = User.findById(token.author) as User
const haveId = args.id && (args.id as string) != ''
if (haveId && Chat.findById(args.id as string) != null) return
const chat = ChatGroup.createGroup(haveId ? undefined : args.id as string)
chat.setTitle(args.title as string)
chat.addMembers([
user.bean.id,
])
user.addContact(chat.bean.id)
return {
code: 200,
msg: '成功',
data: {
chat_id: chat.bean.id,
}
}
})
/**
* 从私聊获取对方的 UserId
* @param token 令牌
* @param target 目標对话
*/
this.registerEvent("Chat.getAnotherUserIdFromPrivate", (args, { deviceId }) => {
if (this.checkArgsMissing(args, ['token', 'target'])) return {
msg: "參數缺失",
code: 400,
}
const token = TokenManager.decode(args.token as string)
if (!this.checkToken(token, deviceId)) return {
code: 401,
msg: "令牌無效",
}
const user = User.findById(token.author) as User
const chat = Chat.findById(args.target as string)
if (chat == null) return {
code: 404,
msg: "對話不存在",
}
if (!UserChatLinker.checkUserIsLinkedToChat(token.author, chat!.bean.id)) return {
code: 400,
msg: "用戶無權訪問該對話",
}
if (chat.bean.type == 'private')
return {
code: 200,
msg: '成功',
data: {
user_id: chat.getAnotherUserForPrivate(user)?.bean.id
}
}
return {
code: 403,
msg: "非私聊对话",
}
})
}
}