Add arkose_token for gpt-4 webapp request

src/app/bots/chatgpt-webapp/index.ts

@@ -1,3 +1,4 @@
+import { random } from 'lodash-es'
 import { v4 as uuidv4 } from 'uuid'
 import { ChatGPTWebModel } from '~services/user-config'
 import { ChatError, ErrorCode } from '~utils/errors'
@@ -10,6 +11,24 @@ function removeCitations(text: string) {
   return text.replaceAll(/\u3010\d+\u2020source\u3011/g, '')
 }
 
+function generateRandomHex(length: number) {
+  let result = ''
+  const characters = '0123456789abcdef'
+  for (let i = 0; i < length; i++) {
+    result += characters.charAt(Math.floor(Math.random() * characters.length))
+  }
+  return result
+}
+
+function generateArkoseToken() {
+  return `${generateRandomHex(
+    17,
+  )}|r=ap-southeast-1|meta=3|meta_width=300|metabgclr=transparent|metaiconclr=%23555555|guitextcolor=%23000000|pk=35536E1E-65B4-4D96-9D97-6ADB7EFF8147|at=40|sup=1|rid=${random(
+    1,
+    99,
+  )}|ag=101|cdn_url=https%3A%2F%2Ftcr9i.chat.openai.com%2Fcdn%2Ffc|lurl=https%3A%2F%2Faudio-ap-southeast-1.arkoselabs.com|surl=https%3A%2F%2Ftcr9i.chat.openai.com|smurl=https%3A%2F%2Ftcr9i.chat.openai.com%2Fcdn%2Ffc%2Fassets%2Fstyle-manager`
+}
+
 interface ConversationContext {
   conversationId: string
   lastMessageId: string
@@ -25,7 +44,7 @@ export class ChatGPTWebBot extends AbstractBot {
 
   private async getModelName(): Promise<string> {
     if (this.model === ChatGPTWebModel['GPT-4']) {
-      return 'gpt-4-mobile'
+      return 'gpt-4'
     }
     if (this.model === ChatGPTWebModel['GPT-4 Browsing']) {
       return 'gpt-4-browsing'
@@ -66,6 +85,7 @@ export class ChatGPTWebBot extends AbstractBot {
           },
         ],
         model: modelName,
+        arkose_token: modelName.startsWith('gpt-4') ? generateArkoseToken() : undefined,
         conversation_id: this.conversationContext?.conversationId || undefined,
         parent_message_id: this.conversationContext?.lastMessageId || uuidv4(),
       }),