Api3 (#149)

* feat: api3 WIP

* feat: add support for proxy of openai

* fix: if no proxy

apps/chat.js

@@ -10,6 +10,7 @@ import { ChatGPTClient, BingAIClient } from '@waylaidwanderer/chatgpt-api'
 import { getMessageById, tryTimes, upsertMessage } from '../utils/common.js'
 import { ChatGPTPuppeteer } from '../utils/browser.js'
 import { KeyvFile } from 'keyv-file'
+import {OfficialChatGPTClient} from "../utils/message.js";
 // import puppeteer from '../utils/browser.js'
 // import showdownKatex from 'showdown-katex'
 const blockWords = Config.blockWords
@@ -402,6 +403,18 @@ export class chatgpt extends plugin {
         invocationId: response.invocationId,
         conversationSignature: response.conversationSignature
       }
+    } else if (use === 'api3') {
+      // official without cloudflare
+      let accessToken = await redis.get('CHATGPT:TOKEN')
+      if (!accessToken) {
+        throw new Error('未绑定ChatGPT AccessToken，请使用#chatgpt设置token命令绑定token')
+      }
+      this.chatGPTApi = new OfficialChatGPTClient({
+        accessToken,
+        apiReverseUrl: Config.api,
+        timeoutMs: 120000
+      })
+      return await this.chatGPTApi.sendMessage(prompt, conversation)
     } else {
       let completionParams = {}
       if (Config.model) {

apps/management.js

@@ -43,6 +43,11 @@ export class ChatgptManagement extends plugin {
           fnc: 'useReversedAPIBasedSolution',
           permission: 'master'
         },
+        {
+          reg: '^#chatgpt切换API3$',
+          fnc: 'useReversedAPIBasedSolution2',
+          permission: 'master'
+        },
         {
           reg: '^#chatgpt切换(必应|Bing)$',
           fnc: 'useReversedBingSolution',
@@ -118,7 +123,12 @@ export class ChatgptManagement extends plugin {
 
   async useReversedAPIBasedSolution (e) {
     await redis.set('CHATGPT:USE', 'apiReverse')
-    await this.reply('已切换到基于第三方Reversed API的解决方案，如果已经对话过建议执行`#结束对话`避免引起404错误')
+    await this.reply('已切换到基于第三方Reversed CompletionAPI的解决方案，如果已经对话过建议执行`#结束对话`避免引起404错误')
+  }
+
+  async useReversedAPIBasedSolution2 (e) {
+    await redis.set('CHATGPT:USE', 'api3')
+    await this.reply('已切换到基于第三方Reversed ConversastionAPI的解决方案，如果已经对话过建议执行`#结束对话`避免引起404错误')
   }
 
   async useReversedBingSolution (e) {

config/index.js

@@ -1,5 +1,5 @@
 // 例如http://127.0.0.1:7890
-const PROXY = ''
+const PROXY = 'http://127.0.0.1:7890'
 const API_KEY = ''
 
 export const Config = {
@@ -20,8 +20,12 @@ export const Config = {
   apiKey: API_KEY,
   // 模型名称，选填。如无特殊需求保持默认即可，会使用chatgpt-api库提供的当前可用的最适合的默认值。保底可用的是 text-davinci-003。当发现新的可用的chatGPT模型会更新这里的值
   // 20230211： text-chat-davinci-002-sh-alpha-aoruigiofdj83 中午存活了几分钟
-  model: 'text-davinci-002-render',
-  api: '',
+  model: '',
+  // ***********************************************************************************************************************************
+  //                                                        以下为API3方式的配置                                                          *
+  // ***********************************************************************************************************************************
+  // from https://github.com/acheong08/ChatGPT
+  api: 'https://chat.duti.tech/api/conversation',
   // ***********************************************************************************************************************************
   //                                                        以下为API2方式的配置                                                          *
   // ***********************************************************************************************************************************

utils/message.js

@@ -0,0 +1,84 @@
+import { v4 as uuidv4 } from 'uuid'
+import { Config } from '../config/index.js'
+import HttpsProxyAgent from 'https-proxy-agent'
+import _ from 'lodash'
+import fetch from 'node-fetch'
+export class OfficialChatGPTClient {
+  constructor (opts = {}) {
+    const {
+      accessToken,
+      apiReverseUrl,
+      timeoutMs
+    } = opts
+    this._accessToken = accessToken
+    this._apiReverseUrl = apiReverseUrl
+    this._timeoutMs = timeoutMs
+  }
+
+  async sendMessage (prompt, opts = {}) {
+    let {
+      timeoutMs = this._timeoutMs,
+      conversationId = uuidv4(),
+      parentMessageId = uuidv4(),
+      messageId = uuidv4(),
+      action = 'next'
+    } = opts
+    let abortController = null
+    if (timeoutMs) {
+      abortController = new AbortController()
+    }
+    const url = this._apiReverseUrl || 'https://chat.openai.com/backend-api/conversation'
+    const body = {
+      action,
+      messages: [
+        {
+          id: messageId,
+          role: 'user',
+          content: {
+            content_type: 'text',
+            parts: [prompt]
+          }
+        }
+      ],
+      conversationId,
+      model: Config.plus ? 'text-davinci-002-render-sha' : 'text-davinci-002-render-sha',
+      parent_message_id: parentMessageId
+    }
+    let option = {
+      method: 'POST',
+      body: JSON.stringify(body),
+      signal: abortController?.signal,
+      headers: {
+        accept: 'text/event-stream',
+        'x-openai-assistant-app-id': '',
+        authorization: `Bearer ${this._accessToken}`,
+        'content-type': 'application/json',
+        referer: 'https://chat.openai.com/chat'
+      },
+      referrer: 'https://chat.openai.com/chat'
+    }
+    if (Config.proxy) {
+      option.agent = new HttpsProxyAgent(Config.proxy)
+    }
+    const res = await fetch(url, option)
+    const decoder = new TextDecoder('utf-8')
+    const bodyBytes = await res.arrayBuffer()
+    const bodyText = decoder.decode(bodyBytes)
+    const events = bodyText.split('\n\n').filter(item => !_.isEmpty(item))
+    let fullResponse = events[events.length - 2]
+    fullResponse = _.trimStart(fullResponse, 'data: ')
+    if (Config.debug) {
+      logger.debug(fullResponse)
+    }
+    fullResponse = JSON.parse(fullResponse)
+    if (!fullResponse.message) {
+      throw new Error(fullResponse.detail || 'unkown error')
+    }
+    return {
+      text: fullResponse.message.content.parts[0],
+      conversationId: fullResponse.conversation_id,
+      id: fullResponse.message.id,
+      parentMessageId
+    }
+  }
+}