feat: add proxy support and fix streaming mode (#122)

service/package.json

@@ -28,7 +28,9 @@
     "dotenv": "^16.0.3",
     "esno": "^0.16.3",
     "express": "^4.18.2",
-    "isomorphic-fetch": "^3.0.0"
+    "isomorphic-fetch": "^3.0.0",
+    "node-fetch": "^3.3.0",
+    "socks-proxy-agent": "^7.0.0"
   },
   "devDependencies": {
     "@antfu/eslint-config": "^0.35.2",

service/pnpm-lock.yaml

@@ -10,7 +10,9 @@ specifiers:
   esno: ^0.16.3
   express: ^4.18.2
   isomorphic-fetch: ^3.0.0
+  node-fetch: ^3.3.0
   rimraf: ^4.1.2
+  socks-proxy-agent: ^7.0.0
   tsup: ^6.6.3
   typescript: ^4.9.5
 
@@ -20,6 +22,8 @@ dependencies:
   esno: 0.16.3
   express: 4.18.2
   isomorphic-fetch: 3.0.0
+  node-fetch: 3.3.0
+  socks-proxy-agent: 7.0.0
 
 devDependencies:
   '@antfu/eslint-config': 0.35.2_7kw3g6rralp5ps6mg3uyzz6azm
@@ -641,6 +645,15 @@ packages:
     hasBin: true
     dev: true
 
+  /agent-base/6.0.2:
+    resolution: {integrity: sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==}
+    engines: {node: '>= 6.0.0'}
+    dependencies:
+      debug: 4.3.4
+    transitivePeerDependencies:
+      - supports-color
+    dev: false
+
   /ajv-formats/2.1.1:
     resolution: {integrity: sha512-Wx0Kx52hxE7C18hkMEggYlEifqWZtYaRgouJor+WMdPnQyEK13vgEWyVNup7SoeeoLMsr4kf5h6dOW11I15MUA==}
     peerDependenciesMeta:
@@ -999,6 +1012,11 @@ packages:
     hasBin: true
     dev: true
 
+  /data-uri-to-buffer/4.0.1:
+    resolution: {integrity: sha512-0R9ikRb668HB7QDxT1vkpuUBtqc53YyAwMwGeUFKRojY/NWKvdZ+9UYtRfGmhqNbRkTSVpMbmyhXipFFv2cb/A==}
+    engines: {node: '>= 12'}
+    dev: false
+
   /debounce-fn/5.1.2:
     resolution: {integrity: sha512-Sr4SdOZ4vw6eQDvPYNxHogvrxmCIld/VenC5JbNrFwMiwd7lY/Z18ZFfo+EWNG4DD9nFlAujWAo/wGuOPHmy5A==}
     engines: {node: '>=12'}
@@ -1038,7 +1056,6 @@ packages:
         optional: true
     dependencies:
       ms: 2.1.2
-    dev: true
 
   /deep-is/0.1.4:
     resolution: {integrity: sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ==}
@@ -1748,6 +1765,14 @@ packages:
       reusify: 1.0.4
     dev: true
 
+  /fetch-blob/3.2.0:
+    resolution: {integrity: sha512-7yAQpD2UMJzLi1Dqv7qFYnPbaPx7ZfFK6PiIxQ4PfkGPyNyl2Ugx+a/umUonmKqjhM4DnfbMvdX6otXq83soQQ==}
+    engines: {node: ^12.20 || >= 14.13}
+    dependencies:
+      node-domexception: 1.0.0
+      web-streams-polyfill: 3.2.1
+    dev: false
+
   /file-entry-cache/6.0.1:
     resolution: {integrity: sha512-7Gps/XWymbLk2QLYK4NzpMOrYjMhdIxXuIvy2QBsLE6ljuodKvdkWs/cpyJJ3CVIVpH0Oi1Hvg1ovbMzLdFBBg==}
     engines: {node: ^10.12.0 || >=12.0.0}
@@ -1819,6 +1844,13 @@ packages:
       is-callable: 1.2.7
     dev: true
 
+  /formdata-polyfill/4.0.10:
+    resolution: {integrity: sha512-buewHzMvYL29jdeQTVILecSaZKnt/RJWjoZCF5OW60Z67/GmSLBkOFM7qh1PI3zFNtJbaZL5eQu1vLfazOwj4g==}
+    engines: {node: '>=12.20.0'}
+    dependencies:
+      fetch-blob: 3.2.0
+    dev: false
+
   /forwarded/0.2.0:
     resolution: {integrity: sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow==}
     engines: {node: '>= 0.6'}
@@ -2086,6 +2118,10 @@ packages:
       side-channel: 1.0.4
     dev: true
 
+  /ip/2.0.0:
+    resolution: {integrity: sha512-WKa+XuLG1A1R0UWhl2+1XQSi+fZWMsYKffMZTTYsiZaUD8k2yDAj5atimTUD2TZkyCkNEeYE5NhFZmupOGtjYQ==}
+    dev: false
+
   /ipaddr.js/1.9.1:
     resolution: {integrity: sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==}
     engines: {node: '>= 0.10'}
@@ -2509,7 +2545,6 @@ packages:
 
   /ms/2.1.2:
     resolution: {integrity: sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==}
-    dev: true
 
   /ms/2.1.3:
     resolution: {integrity: sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==}
@@ -2535,6 +2570,11 @@ packages:
     engines: {node: '>= 0.6'}
     dev: false
 
+  /node-domexception/1.0.0:
+    resolution: {integrity: sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ==}
+    engines: {node: '>=10.5.0'}
+    dev: false
+
   /node-fetch/2.6.9:
     resolution: {integrity: sha512-DJm/CJkZkRjKKj4Zi4BsKVZh3ValV5IR5s7LVZnW+6YMh0W1BfNA8XSs6DLMGYlId5F3KnA70uu2qepcR08Qqg==}
     engines: {node: 4.x || >=6.0.0}
@@ -2547,6 +2587,15 @@ packages:
       whatwg-url: 5.0.0
     dev: false
 
+  /node-fetch/3.3.0:
+    resolution: {integrity: sha512-BKwRP/O0UvoMKp7GNdwPlObhYGB5DQqwhEDQlNKuoqwVYSxkSZCSbHjnFFmUEtwSKRPU4kNK8PbDYYitwaE3QA==}
+    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
+    dependencies:
+      data-uri-to-buffer: 4.0.1
+      fetch-blob: 3.2.0
+      formdata-polyfill: 4.0.10
+    dev: false
+
   /normalize-package-data/2.5.0:
     resolution: {integrity: sha512-/5CMN3T0R4XTj4DcGaexo+roZSdSFW/0AOOTROrjxzCG1wrWXEsGbRKevjlIL+ZDE4sZlJr5ED4YW0yqmkK+eA==}
     dependencies:
@@ -3083,6 +3132,30 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
+  /smart-buffer/4.2.0:
+    resolution: {integrity: sha512-94hK0Hh8rPqQl2xXc3HsaBoOXKV20MToPkcXvwbISWLEs+64sBq5kFgn2kJDHb1Pry9yrP0dxrCI9RRci7RXKg==}
+    engines: {node: '>= 6.0.0', npm: '>= 3.0.0'}
+    dev: false
+
+  /socks-proxy-agent/7.0.0:
+    resolution: {integrity: sha512-Fgl0YPZ902wEsAyiQ+idGd1A7rSFx/ayC1CQVMw5P+EQx2V0SgpGtf6OKFhVjPflPUl9YMmEOnmfjCdMUsygww==}
+    engines: {node: '>= 10'}
+    dependencies:
+      agent-base: 6.0.2
+      debug: 4.3.4
+      socks: 2.7.1
+    transitivePeerDependencies:
+      - supports-color
+    dev: false
+
+  /socks/2.7.1:
+    resolution: {integrity: sha512-7maUZy1N7uo6+WVEX6psASxtNlKaNVMlGQKkG/63nEDdLOWNbiUMoLK7X4uYoLhQstau72mLgfEWcXcwsaHbYQ==}
+    engines: {node: '>= 10.13.0', npm: '>= 3.0.0'}
+    dependencies:
+      ip: 2.0.0
+      smart-buffer: 4.2.0
+    dev: false
+
   /source-map-support/0.5.21:
     resolution: {integrity: sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==}
     dependencies:
@@ -3440,6 +3513,11 @@ packages:
       - supports-color
     dev: true
 
+  /web-streams-polyfill/3.2.1:
+    resolution: {integrity: sha512-e0MO3wdXWKrLbL0DgGnUV7WHVuw9OUvL4hjgnPkIeEvESk74gAITi5G606JtZPp39cd8HA9VQzCIvA49LpPN5Q==}
+    engines: {node: '>= 8'}
+    dev: false
+
   /webidl-conversions/3.0.1:
     resolution: {integrity: sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==}
     dev: false

service/src/chatgpt.ts

@@ -2,6 +2,8 @@ import * as dotenv from 'dotenv'
 import 'isomorphic-fetch'
 import type { ChatGPTAPI, ChatMessage, SendMessageOptions } from 'chatgpt'
 import { ChatGPTUnofficialProxyAPI } from 'chatgpt'
+import { SocksProxyAgent } from 'socks-proxy-agent'
+import fetch from 'node-fetch'
 import { sendResponse } from './utils'
 
 dotenv.config()
@@ -30,10 +32,25 @@ let api: ChatGPTAPI | ChatGPTUnofficialProxyAPI
     apiModel = 'ChatGPTAPI'
   }
   else {
-    let options = {}
+    const options = {
+      debug: true,
+    }
 
-    if (process.env.API_REVERSE_PROXY)
+    if (process.env.SOCKS_PROXY_HOST && process.env.SOCKS_PROXY_PORT) {
-      options = { apiReverseProxyUrl: process.env.API_REVERSE_PROXY }
+      const agent = new SocksProxyAgent({
+        hostname: process.env.SOCKS_PROXY_HOST,
+        port: process.env.SOCKS_PROXY_PORT,
+      })
+      globalThis.console.log(`Using socks proxy: ${process.env.SOCKS_PROXY_HOST}:${process.env.SOCKS_PROXY_PORT}`)
+      options.fetch = (url, options) => {
+        return fetch(url, { agent, ...options })
+      }
+    }
+
+    if (process.env.API_REVERSE_PROXY) {
+      options.apiReverseProxyUrl = process.env.API_REVERSE_PROXY
+      globalThis.console.log(`Using api reverse proxy: ${process.env.API_REVERSE_PROXY}`)
+    }
 
     api = new ChatGPTUnofficialProxyAPI({
       accessToken: process.env.OPENAI_ACCESS_TOKEN,
@@ -65,6 +82,35 @@ async function chatReply(
   }
 }
 
+/**  实验性质的函数，用于处理聊天过程中的中间结果 */
+async function chatReplyProcess(
+  message: string,
+  lastContext?: { conversationId?: string; parentMessageId?: string },
+  process?: (chat: ChatMessage) => void,
+) {
+  if (!message)
+    return sendResponse({ type: 'Fail', message: 'Message is empty' })
+
+  try {
+    let options: SendMessageOptions = { timeoutMs }
+
+    if (lastContext)
+      options = { ...lastContext }
+
+    const response = await api.sendMessage(message, {
+      ...options,
+      onProgress: (partialResponse) => {
+        process?.(partialResponse)
+      },
+    })
+
+    return sendResponse({ type: 'Success', data: response })
+  }
+  catch (error: any) {
+    return sendResponse({ type: 'Fail', message: error.message })
+  }
+}
+
 async function chatConfig() {
   return sendResponse({
     type: 'Success',
@@ -72,10 +118,11 @@ async function chatConfig() {
       apiModel,
       reverseProxy: process.env.API_REVERSE_PROXY,
       timeoutMs,
+      socksProxy: (process.env.SOCKS_PROXY_HOST && process.env.SOCKS_PROXY_PORT) ? (`${process.env.SOCKS_PROXY_HOST}:${process.env.SOCKS_PROXY_PORT}`) : '-',
     },
   })
 }
 
 export type { ChatContext, ChatMessage }
 
-export { chatReply, chatConfig }
+export { chatReply, chatReplyProcess, chatConfig }

service/src/index.ts

@@ -1,6 +1,6 @@
 import express from 'express'
-import type { ChatContext } from './chatgpt'
+import type { ChatContext, ChatMessage } from './chatgpt'
-import { chatConfig, chatReply } from './chatgpt'
+import { chatConfig, chatReply, chatReplyProcess } from './chatgpt'
 
 const app = express()
 const router = express.Router()
@@ -26,6 +26,26 @@ router.post('/chat', async (req, res) => {
   }
 })
 
+/**  实验性质的函数，用于处理聊天过程中的中间结果 */
+router.post('/chat-process', async (req, res) => {
+  res.setHeader('Content-type', 'application/octet-stream')
+
+  try {
+    const { prompt, options = {} } = req.body as { prompt: string; options?: ChatContext }
+    let firstChunk = true
+    await chatReplyProcess(prompt, options, (chat: ChatMessage) => {
+      res.write(firstChunk ? JSON.stringify(chat) : `\n${JSON.stringify(chat)}`)
+      firstChunk = false
+    })
+  }
+  catch (error) {
+    res.write(JSON.stringify(error))
+  }
+  finally {
+    res.end()
+  }
+})
+
 router.post('/config', async (req, res) => {
   try {
     const response = await chatConfig()

src/api/index.ts

@@ -1,4 +1,4 @@
-import type { GenericAbortSignal } from 'axios'
+import type { AxiosProgressEvent, GenericAbortSignal } from 'axios'
 import { post } from '@/utils/request'
 
 export function fetchChatAPI<T = any>(
@@ -18,3 +18,19 @@ export function fetchChatConfig<T = any>() {
     url: '/config',
   })
 }
+
+/**  实验性质的函数，用于处理聊天过程中的中间结果 */
+export function fetchChatAPIProcess<T = any>(
+  params: {
+    prompt: string
+    options?: { conversationId?: string; parentMessageId?: string }
+    signal?: GenericAbortSignal
+    onDownloadProgress?: (progressEvent: AxiosProgressEvent) => void },
+) {
+  return post<T>({
+    url: '/chat-process',
+    data: { prompt: params.prompt, options: params.options },
+    signal: params.signal,
+    onDownloadProgress: params.onDownloadProgress,
+  })
+}

src/components/common/Setting/index.vue

@@ -16,6 +16,7 @@ interface ConfigState {
   timeoutMs?: number
   reverseProxy?: string
   apiModel?: string
+  socksProxy?: string
 }
 
 const props = defineProps<Props>()
@@ -69,6 +70,7 @@ watch(
         <p>API方式：{{ config?.apiModel ?? '-' }}</p>
         <p>反向代理：{{ config?.reverseProxy ?? '-' }}</p>
         <p>超时时间：{{ config?.timeoutMs ?? '-' }}</p>
+        <p>Socks代理：{{ config?.socksProxy ?? '-' }}</p>
       </div>
     </NCard>
   </NModal>

src/views/chat/index.vue

@@ -8,7 +8,7 @@ import { useChat } from './hooks/useChat'
 import { HoverButton, SvgIcon } from '@/components/common'
 import { useBasicLayout } from '@/hooks/useBasicLayout'
 import { useChatStore } from '@/store'
-import { fetchChatAPI } from '@/api'
+import { fetchChatAPIProcess } from '@/api'
 
 let controller = new AbortController()
 
@@ -82,6 +82,42 @@ async function onConversation() {
   scrollToBottom()
 
   try {
+    await fetchChatAPIProcess<Chat.ConversationResponse>({
+      prompt: message,
+      options,
+      signal: controller.signal,
+      onDownloadProgress: ({ event }) => {
+        const xhr = event.target
+        const { responseText } = xhr
+        // Always process the final line
+        const lastIndex = responseText.lastIndexOf('\n')
+        let chunk = responseText
+        if (lastIndex !== -1)
+          chunk = responseText.substring(lastIndex)
+        try {
+          globalThis.console.log(`trunk = ${chunk}`)
+          const data = JSON.parse(chunk)
+          updateChat(
+            +uuid,
+            dataSources.value.length - 1,
+            {
+              dateTime: new Date().toLocaleString(),
+              text: data.text ?? '',
+              inversion: false,
+              error: false,
+              loading: false,
+              conversationOptions: { conversationId: data.conversationId, parentMessageId: data.id },
+              requestOptions: { prompt: message, options: { ...options } },
+            },
+          )
+          scrollToBottom()
+        }
+        catch (error) {
+          //
+        }
+      },
+    })
+    /*
     const { data } = await fetchChatAPI<Chat.ConversationResponse>(message, options, controller.signal)
     updateChat(
       +uuid,
@@ -97,6 +133,7 @@ async function onConversation() {
       },
     )
     scrollToBottom()
+*/
   }
   catch (error: any) {
     let errorMessage = error?.message ?? 'Something went wrong, please try again later.'
@@ -156,6 +193,41 @@ async function onRegenerate(index: number) {
   )
 
   try {
+    await fetchChatAPIProcess<Chat.ConversationResponse>({
+      prompt: message,
+      options,
+      signal: controller.signal,
+      onDownloadProgress: ({ event }) => {
+        const xhr = event.target
+        const { responseText } = xhr
+        // Always process the final line
+        const lastIndex = responseText.lastIndexOf('\n')
+        let chunk = responseText
+        if (lastIndex !== -1)
+          chunk = responseText.substring(lastIndex)
+        try {
+          globalThis.console.log(`trunk = ${chunk}`)
+          const data = JSON.parse(chunk)
+          updateChat(
+            +uuid,
+            index,
+            {
+              dateTime: new Date().toLocaleString(),
+              text: data.text ?? '',
+              inversion: false,
+              error: false,
+              loading: false,
+              conversationOptions: { conversationId: data.conversationId, parentMessageId: data.id },
+              requestOptions: { prompt: message, ...options },
+            },
+          )
+        }
+        catch (error) {
+          //
+        }
+      },
+    })
+    /*
     const { data } = await fetchChatAPI<Chat.ConversationResponse>(message, options, controller.signal)
     updateChat(
       +uuid,
@@ -170,9 +242,10 @@ async function onRegenerate(index: number) {
         requestOptions: { prompt: message, ...options },
       },
     )
+*/
   }
   catch (error: any) {
-    let errorMessage = 'Something went wrong, please try again later.'
+    let errorMessage = error?.message ?? 'Something went wrong, please try again later.'
 
     if (error.message === 'canceled')
       errorMessage = 'Request canceled. Please try again.'