import copy import json import re import tiktoken import uuid from curl_cffi import requests from tclogger import logger from constants.envs import PROXIES from constants.headers import OPENAI_GET_HEADERS, OPENAI_POST_DATA from constants.models import TOKEN_LIMIT_MAP, TOKEN_RESERVED from messagers.message_outputer import OpenaiStreamOutputer class OpenaiRequester: def __init__(self): self.init_requests_params() def init_requests_params(self): self.api_base = "https://chat.openai.com/backend-anon" self.api_me = f"{self.api_base}/me" self.api_models = f"{self.api_base}/models" self.api_chat_requirements = f"{self.api_base}/sentinel/chat-requirements" self.api_conversation = f"{self.api_base}/conversation" self.uuid = str(uuid.uuid4()) self.requests_headers = copy.deepcopy(OPENAI_GET_HEADERS) extra_headers = { "Oai-Device-Id": self.uuid, } self.requests_headers.update(extra_headers) def log_request(self, url, method="GET"): logger.note(f"> {method}:", end=" ") logger.mesg(f"{url}", end=" ") def log_response( self, res: requests.Response, stream=False, iter_lines=False, verbose=False ): status_code = res.status_code status_code_str = f"[{status_code}]" if status_code == 200: logger_func = logger.success else: logger_func = logger.warn logger_func(status_code_str) logger.enter_quiet(not verbose) if stream: if not iter_lines: return if not hasattr(self, "content_offset"): self.content_offset = 0 for line in res.iter_lines(): line = line.decode("utf-8") line = re.sub(r"^data:\s*", "", line) if re.match(r"^\[DONE\]", line): logger.success("\n[Finished]") break line = line.strip() if line: try: data = json.loads(line, strict=False) message_role = data["message"]["author"]["role"] message_status = data["message"]["status"] if ( message_role == "assistant" and message_status == "in_progress" ): content = data["message"]["content"]["parts"][0] delta_content = content[self.content_offset :] self.content_offset = len(content) logger_func(delta_content, end="") except Exception as e: logger.warn(e) else: logger_func(res.json()) logger.exit_quiet(not verbose) def get_models(self): self.log_request(self.api_models) res = requests.get( self.api_models, headers=self.requests_headers, proxies=PROXIES, timeout=10, impersonate="chrome120", ) self.log_response(res) def auth(self): self.log_request(self.api_chat_requirements, method="POST") res = requests.post( self.api_chat_requirements, headers=self.requests_headers, proxies=PROXIES, timeout=10, impersonate="chrome120", ) self.chat_requirements_token = res.json()["token"] self.log_response(res) def transform_messages(self, messages: list[dict]): def get_role(role): if role in ["system", "user", "assistant"]: return role else: return "system" new_messages = [ { "author": {"role": get_role(message["role"])}, "content": {"content_type": "text", "parts": [message["content"]]}, "metadata": {}, } for message in messages ] return new_messages def chat_completions(self, messages: list[dict], verbose=False): extra_headers = { "Accept": "text/event-stream", "Openai-Sentinel-Chat-Requirements-Token": self.chat_requirements_token, } requests_headers = copy.deepcopy(self.requests_headers) requests_headers.update(extra_headers) post_data = copy.deepcopy(OPENAI_POST_DATA) extra_data = { "messages": self.transform_messages(messages), "websocket_request_id": str(uuid.uuid4()), } post_data.update(extra_data) self.log_request(self.api_conversation, method="POST") s = requests.Session() res = s.post( self.api_conversation, headers=requests_headers, json=post_data, proxies=PROXIES, timeout=10, impersonate="chrome120", stream=True, ) self.log_response(res, stream=True, iter_lines=False) return res class OpenaiStreamer: def __init__(self): self.model = "gpt-3.5-turbo" self.message_outputer = OpenaiStreamOutputer( owned_by="openai", model="gpt-3.5-turbo" ) self.tokenizer = tiktoken.get_encoding("cl100k_base") def count_tokens(self, messages: list[dict]): token_count = sum( len(self.tokenizer.encode(message["content"])) for message in messages ) logger.note(f"Prompt Token Count: {token_count}") return token_count def check_token_limit(self, messages: list[dict]): token_limit = TOKEN_LIMIT_MAP[self.model] token_count = self.count_tokens(messages) token_redundancy = int(token_limit - TOKEN_RESERVED - token_count) if token_redundancy <= 0: raise ValueError( f"Prompt exceeded token limit: {token_count} > {token_limit}" ) return True def chat_response(self, messages: list[dict], verbose=False): self.check_token_limit(messages) logger.enter_quiet(not verbose) requester = OpenaiRequester() requester.auth() logger.exit_quiet(not verbose) return requester.chat_completions(messages, verbose=verbose) def chat_return_generator(self, stream_response: requests.Response, verbose=False): content_offset = 0 is_finished = False for line in stream_response.iter_lines(): line = line.decode("utf-8") line = re.sub(r"^data:\s*", "", line) line = line.strip() if not line: continue if re.match(r"^\[DONE\]", line): content_type = "Finished" delta_content = "" logger.success("\n[Finished]") is_finished = True else: content_type = "Completions" delta_content = "" try: data = json.loads(line, strict=False) message_role = data["message"]["author"]["role"] message_status = data["message"]["status"] if message_role == "assistant" and message_status == "in_progress": content = data["message"]["content"]["parts"][0] if not len(content): continue delta_content = content[content_offset:] content_offset = len(content) if verbose: logger.success(delta_content, end="") else: continue except Exception as e: logger.warn(e) output = self.message_outputer.output( content=delta_content, content_type=content_type ) yield output if not is_finished: yield self.message_outputer.output(content="", content_type="Finished") def chat_return_dict(self, stream_response: requests.Response): final_output = self.message_outputer.default_data.copy() final_output["choices"] = [ { "index": 0, "finish_reason": "stop", "message": {"role": "assistant", "content": ""}, } ] final_content = "" for item in self.chat_return_generator(stream_response): try: data = json.loads(item) delta = data["choices"][0]["delta"] delta_content = delta.get("content", "") if delta_content: final_content += delta_content except Exception as e: logger.warn(e) final_output["choices"][0]["message"]["content"] = final_content.strip() return final_output