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浏览器指纹 Profile 工厂
提供多版本 Chrome 浏览器指纹配置，确保 TLS impersonate、User-Agent、
sec-ch-ua 三者版本一致，消除反检测信号。
"""
import random
from dataclasses import dataclass, field
from typing import Dict, Optional
# Chrome 版本指纹池 — impersonate 标识必须与 curl_cffi 支持的版本匹配
_CHROME_PROFILES = [
{
"major": 131, "impersonate": "chrome131",
"build": 6778, "patch_range": (69, 205),
"sec_ch_ua": '"Google Chrome";v="131", "Chromium";v="131", "Not_A Brand";v="24"',
},
{
"major": 133, "impersonate": "chrome133a",
"build": 6943, "patch_range": (33, 153),
"sec_ch_ua": '"Not(A:Brand";v="99", "Google Chrome";v="133", "Chromium";v="133"',
},
{
"major": 136, "impersonate": "chrome136",
"build": 7103, "patch_range": (48, 175),
"sec_ch_ua": '"Chromium";v="136", "Google Chrome";v="136", "Not.A/Brand";v="99"',
},
]
@dataclass(frozen=True)
class BrowserProfile:
"""单次会话绑定的浏览器指纹 Profile"""
impersonate: str
major: int
full_version: str
user_agent: str
sec_ch_ua: str
sec_ch_ua_mobile: str = "?0"
sec_ch_ua_platform: str = '"Windows"'
# ---- 通用 sec-ch-ua 三件套 ----
def _ch_ua_headers(self) -> Dict[str, str]:
"""返回 sec-ch-ua 三件套，Chrome 每个 HTTPS 请求默认发送。"""
return {
"sec-ch-ua": self.sec_ch_ua,
"sec-ch-ua-mobile": self.sec_ch_ua_mobile,
"sec-ch-ua-platform": self.sec_ch_ua_platform,
}
# ---- 页面导航请求 headers（GET HTML 页面）----
def navigation_headers(self, referer: Optional[str] = None) -> Dict[str, str]:
"""
浏览器导航到页面时的 headers（如 GET auth.openai.com/oauth/authorize）。
对应 Sec-Fetch-Mode: navigate。
"""
headers: Dict[str, str] = {
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8",
"accept-language": "en-US,en;q=0.9",
"upgrade-insecure-requests": "1",
"sec-fetch-dest": "document",
"sec-fetch-mode": "navigate",
"sec-fetch-user": "?1",
"user-agent": self.user_agent,
}
headers.update(self._ch_ua_headers())
if referer:
headers["referer"] = referer
headers["sec-fetch-site"] = "cross-site"
else:
headers["sec-fetch-site"] = "none"
return headers
# ---- JSON API 请求 headers（POST auth.openai.com/api/*）----
def json_api_headers(
self,
referer: str,
origin: str = "https://auth.openai.com",
oai_did: Optional[str] = None,
) -> Dict[str, str]:
"""
JSON API 请求的统一 headers（如 signup、password_verify、validate_otp、create_account）。
对应 Sec-Fetch-Mode: cors。
"""
headers: Dict[str, str] = {
"accept": "application/json",
"content-type": "application/json",
"origin": origin,
"referer": referer,
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
}
headers.update(self._ch_ua_headers())
if oai_did:
headers["oai-device-id"] = oai_did
return headers
# ---- Sentinel 请求 headers ----
def sentinel_headers(self) -> Dict[str, str]:
"""
Sentinel PoW 请求的 headers（POST sentinel.openai.com）。
对应跨域 CORS 请求。
"""
headers: Dict[str, str] = {
"origin": "https://sentinel.openai.com",
"referer": "https://sentinel.openai.com/backend-api/sentinel/frame.html?sv=20260219f9f6",
"content-type": "text/plain;charset=UTF-8",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
}
headers.update(self._ch_ua_headers())
return headers
def get_random_profile() -> BrowserProfile:
"""从 Chrome 版本池中随机选择一个 Profile，整个注册会话内保持一致。"""
cfg = random.choice(_CHROME_PROFILES)
major = cfg["major"]
build = cfg["build"]
patch = random.randint(*cfg["patch_range"])
full_ver = f"{major}.0.{build}.{patch}"
ua = (
f"Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
f"AppleWebKit/537.36 (KHTML, like Gecko) "
f"Chrome/{full_ver} Safari/537.36"
)
return BrowserProfile(
impersonate=cfg["impersonate"],
major=major,
full_version=full_ver,
user_agent=ua,
sec_ch_ua=cfg["sec_ch_ua"],
)
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