coordinate/plugins/vfs_plugin2.py

# plugins/vfs_plugin2.py

import os
import time
import json
import random
import base64
import uuid
import shutil
import re
import urllib.parse
from datetime import datetime
from typing import Dict, Any, Optional, List, Tuple, Callable

# DrissionPage 核心引入
from DrissionPage import ChromiumPage, ChromiumOptions
from DrissionPage.common import Settings

# 加密库
from cryptography.hazmat.primitives import serialization, hashes
from cryptography.hazmat.primitives.asymmetric import padding
from cryptography.hazmat.backends import default_backend

from vs_plg import IVSPlg 
from vs_types import VSPlgConfig, VSQueryResult, VSBookResult, DateAvailability, AvailabilityStatus, NotFoundError, PermissionDeniedError, RateLimiteddError, SessionExpiredOrInvalidError, BizLogicError 
from toolkit.vs_cloud_api import VSCloudApi
from toolkit.proxy_tunnel import ProxyTunnel
from utils.cloudflare_bypass_for_scraping import CloudflareBypasser


# ----------------- 静态常量与辅助数据 -----------------

VFS_PUBLIC_KEY_PEM = """-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuupFgB+lYIOtSxrRoHzc
LmCZKJ6+oSbgqgOPzFMM0TasOeLw0NXEn1XfIzXdx75+tegNKwyIZumoh0yhubKs
t59GV321kN0iquYRHrdh3ygfDDHlS9rROQeBqRga0ncSADtbLMrBPqXJjPCoV76y
t92towriKoH75BhiazY0mghm4LjmAWrV0u/GNpV3tk9bxbtHEXGaFmxCJqjg+7x6
1e5wXLfvpj9w1QsiSWOSJxLOyICz/9ByxXycQQFdNmjnnnwco9Gt/Mi33NYH71j0
5oXIjklFC4lvJqaqSY5lS7Vwb9oCt9zX9J0Yz4z4e/3V+0jgRnWOFGofyks4FKe2
GQIDAQAB
-----END PUBLIC KEY-----"""

COUNTRY_MAP = {
    "afghanistan": "AFG", "albania": "ALB", "algeria": "DZA", "andorra": "AND",  "angola": "AGO",
    "antigua and barbuda": "ATG", "argentina": "ARG", "armenia": "ARM", "australia": "AUS", "austria": "AUT",
    "azerbaijan": "AZE", "bahamas": "BHS", "bahrain": "BHR", "bangladesh": "BGD", "barbados": "BRB", "belarus": "BLR",
    "belgium": "BEL", "belize": "BLZ", "benin": "BEN", "bhutan": "BTN", "bolivia": "BOL", "bosnia and herzegovina": "BIH",
    "botswana": "BWA", "brazil": "BRA", "brunei": "BRN", "bulgaria": "BGR", "burkina faso": "BFA", "burundi": "BDI",
    "cabo verde": "CPV", "cambodia": "KHM", "cameroon": "CMR", "canada": "CAN", "central african republic": "CAF",
    "chad": "TCD", "chile": "CHL", "china": "CHN", "colombia": "COL", "comoros": "COM", "congo (brazzaville)": "COG",
    "congo (kinshasa)": "COD", "costa rica": "CRI", "croatia": "HRV", "cuba": "CUB", "cyprus": "CYP", "czech republic": "CZE",
    "denmark": "DNK", "djibouti": "DJI", "dominica": "DMA", "dominican republic": "DOM", "ecuador": "ECU", "egypt": "EGY",
    "el salvador": "SLV", "equatorial guinea": "GNQ", "eritrea": "ERI", "estonia": "EST", "eswatini": "SWZ", "ethiopia": "ETH",
    "fiji": "FJI", "finland": "FIN", "france": "FRA", "gabon": "GAB", "gambia": "GMB", "georgia": "GEO", "germany": "DEU",
    "ghana": "GHA", "greece": "GRC", "grenada": "GRD", "guatemala": "GTM", "guinea": "GIN", "guinea-bissau": "GNB", "guyana": "GUY",
    "haiti": "HTI", "honduras": "HND", "hungary": "HUN", "iceland": "ISL", "india": "IND", "indonesia": "IDN", "iran": "IRN",
    "iraq": "IRQ", "ireland": "IRL", "israel": "ISR", "italy": "ITA", "jamaica": "JAM", "japan": "JPN", "jordan": "JOR",
    "kazakhstan": "KAZ", "kenya": "KEN", "kiribati": "KIR", "korea, north": "PRK", "korea, south": "KOR", "kuwait": "KWT",
    "kyrgyzstan": "KGZ", "laos": "LAO", "latvia": "LVA", "lebanon": "LBN", "lesotho": "LSO", "liberia": "LBR", "libya": "LBY",
    "liechtenstein": "LIE", "lithuania": "LTU", "luxembourg": "LUX", "madagascar": "MDG", "malawi": "MWI", "malaysia": "MYS",
    "maldives": "MDV", "mali": "MLI", "malta": "MLT", "marshall islands": "MHL", "mauritania": "MRT", "mauritius": "MUS",
    "mexico": "MEX", "micronesia": "FSM", "moldova": "MDA", "monaco": "MCO", "mongolia": "MNG", "montenegro": "MNE", "morocco": "MAR",
    "mozambique": "MOZ", "myanmar": "MMR", "namibia": "NAM", "nauru": "NRU", "nepal": "NPL", "netherlands": "NLD", "new zealand": "NZL",
    "nicaragua": "NIC", "niger": "NER", "nigeria": "NGA", "north macedonia": "MKD", "norway": "NOR", "oman": "OMN", "pakistan": "PAK",
    "palau": "PLW", "panama": "PAN", "papua new guinea": "PNG", "paraguay": "PRY", "peru": "PER", "philippines": "PHL", "poland": "POL",
    "portugal": "PRT", "qatar": "QAT", "romania": "ROU", "russia": "RUS", "rwanda": "RWA", "saudi arabia": "SAU", "senegal": "SEN",
    "serbia": "SRB", "seychelles": "SYC", "sierra leone": "SLE", "singapore": "SGP", "slovakia": "SVK", "slovenia": "SVN",
    "solomon islands": "SLB", "somalia": "SOM", "south africa": "ZAF", "spain": "ESP", "sri lanka": "LKA", "sudan": "SDN",
    "suriname": "SUR", "sweden": "SWE", "switzerland": "CHE", "syria": "SYR", "tajikistan": "TJK", "tanzania": "TZA", "thailand": "THA",
    "timor-leste": "TLS", "togo": "TGO", "tonga": "TON", "tunisia": "TUN", "turkey": "TUR", "turkmenistan": "TKM", "uganda": "UGA",
    "ukraine": "UKR", "united arab emirates": "ARE", "united kingdom": "GBR", "united states": "USA", "uruguay": "URY", "uzbekistan": "UZB",
    "vanuatu": "VUT", "venezuela": "VEN", "vietnam": "VNM", "yemen": "YEM", "zambia": "ZMB", "zimbabwe": "ZWE"
}

def get_country_iso3(name: str) -> str:
    return COUNTRY_MAP.get(name.lower(), "CHN")

def to_yyyymmdd(data_str: str, date_str_format: str, target_format: str="%Y-%m-%d"):
    try:
        dt = datetime.strptime(data_str, date_str_format)
        return dt.strftime(target_format)
    except:
        return data_str
    
def get_alias_email(email: str, new_domain: str = "gmail-app.com") -> str:
    """
    将邮箱域名替换为指定域名（默认 gmail-app.com）
    """
    if "@" not in email:
        raise ValueError(f"Invalid email: {email}")

    local_part, _ = email.rsplit("@", 1)
    return f"{local_part}@{new_domain}"

# --- 模拟 Requests Response 对象 ---
class BrowserResponse:
    def __init__(self, result_dict):
        result_dict = result_dict or {}
        self.status_code = result_dict.get('status', 0)
        self.text = result_dict.get('body', '')
        self.headers = result_dict.get('headers', {})
        self.url = result_dict.get('url', '')
        self._json = None

    def json(self):
        if self._json is None:
            if not self.text:
                return {}
            try:
                self._json = json.loads(self.text)
            except:
                self._json = {}
        return self._json

    @property
    def content(self):
        return self.text.encode('utf-8')

class VfsPlugin2(IVSPlg):
    def __init__(self, group_id: str):
        self.group_id = group_id
        self.config: Optional[VSPlgConfig] = None
        self.free_config: Dict[str, Any] = {}
        self.logger = None
        
        # 替换 requests.Session 为 DrissionPage
        self.page: Optional[ChromiumPage] = None
        
        self.jwt_token: str = ""
        self.real_ip: str = ""
        self.is_healthy: bool = True
        
        self.center_conf = None
        self.category_conf: Dict = {}
        self.subcategory_conf: Dict = {}
        
        self.public_key = serialization.load_pem_public_key(
            VFS_PUBLIC_KEY_PEM.encode(),
            backend=default_backend()
        )
        
        # --- [核心修改] 并发隔离与资源管理 ---
        # 生成唯一实例 ID
        self.instance_id = uuid.uuid4().hex[:8]
        self.root_workspace = os.path.abspath(os.path.join("temp_browser_data", f"{self.group_id}_{self.instance_id}"))
        self.user_data_path = os.path.join(self.root_workspace, "user_data")
        
        # 持有隧道实例
        self.tunnel = None
        
        # 确保根目录存在 (子目录由具体逻辑创建)
        if not os.path.exists(self.root_workspace):
            os.makedirs(self.root_workspace)
            
        self.session_create_time: float = 0

    def get_group_id(self) -> str:
        return self.group_id

    def set_config(self, config: VSPlgConfig):
        self.config = config
        self.free_config = config.free_config or {}
        
    def set_log(self, logger: Callable[[str], None]) -> None:
        self.logger = logger
    
    def _log(self, message):
        if self.logger:
            self.logger(f'[VfsPlugin] [{self.group_id}] {message}')
        else:
            print(f'[VfsPlugin] [{self.group_id}] {message}')

    def health_check(self) -> bool:
        if not self.is_healthy:
            return False
        if self.page is None:
            return False
        # 检查页面是否还活着
        try:
            if not self.page.run_js("return 1;"):
                return False
        except:
            return False
            
        if self.config.session_max_life > 0:
            current_time = time.time()
            elapsed_time = current_time - self.session_create_time
            if elapsed_time > self.config.session_max_life * 60:
                self._log(f"Session expired.")
                return False
        return True

    def create_session(self) -> None:
        """
        使用 DrissionPage 创建会话：
        1. 启动浏览器
        2. 导航到登录页
        3. 自动过盾并提取 Token (集成 CloudflareBypasser)
        4. JS fetch 登录
        """
        self._log(f"Initializing Session (ID: {self.instance_id})...")
        
        # 0. 配置浏览器
        co = ChromiumOptions()
        # -------------------------------------------------------------
        # [核心修复] 解决 'not enough values to unpack'
        # -------------------------------------------------------------
        # 1. 不要用 co.auto_port()，因为它依赖解析 stdout，会被 DBus 报错干扰
        # 2. 我们手动随机生成一个端口
        import random
        import socket
        
        def get_free_port():
            with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
                s.bind(('', 0))
                return s.getsockname()[1]
        
        debug_port = get_free_port()
        self._log(f"Assigned Debug Port: {debug_port}")
        
        # 3. 强制指定端口，DrissionPage 就会直接连接，不再解析日志
        co.set_local_port(debug_port)
        
        # --- [关键配置] 设置独立的用户数据目录 ---
        # 这样每个实例的 Cache, Cookies, LocalStorage 都是完全隔离的
        # 同时也防止了多进程争抢同一个 Default 文件夹导致的崩溃
        co.set_user_data_path(self.user_data_path)
        
        # --- 1. 指定浏览器路径 (适配 Docker) ---
        chrome_path = os.getenv("CHROME_BIN")
        if chrome_path and os.path.exists(chrome_path):
            co.set_paths(browser_path=chrome_path)
        
        # --- [核心修改] 代理配置 ---
        if self.config.proxy and self.config.proxy.ip:
            p = self.config.proxy
            
            if p.username and p.password:
                self._log(f"Starting Proxy Tunnel for {p.ip}...")
                
                # 1. 启动本地隧道
                self.tunnel = ProxyTunnel(p.ip, p.port, p.username, p.password)
                local_proxy = self.tunnel.start()
                
                self._log(f"Tunnel started at {local_proxy}")
                
                # 2. Chrome 连接本地免密端口
                # 必须使用 --proxy-server 强制指定，绝对稳健
                co.set_argument(f'--proxy-server={local_proxy}')
                
            else:
                # 无密码代理，直接用
                proxy_str = f"{p.scheme}://{p.ip}:{p.port}"
                co.set_argument(f'--proxy-server={proxy_str}')
        else:
            self._log("[WARN] No proxy configured!")
            
        co.headless(False) 
        co.set_argument('--no-sandbox')
        co.set_argument('--disable-gpu')
        # Docker 默认 /dev/shm 只有 64MB，Chromium 很容易爆内存崩溃
        co.set_argument('--disable-dev-shm-usage') 
        
        co.set_argument('--window-size=1920,1080')
        co.set_argument('--disable-blink-features=AutomationControlled')

        try:
            self.page = ChromiumPage(co)
            
            # 1. 导航到登录页面
            mission = self.free_config.get("mission_code", "")
            country = self.free_config.get("country_code", "")
            lang = self.free_config.get("language", "en")
            
            if not mission or not country:
                raise BizLogicError("Missing mission/country code config")

            login_page_url = f"https://visa.vfsglobal.com/{country}/{lang}/{mission}/login"
            self._log(f"Navigating to {login_page_url}...")
            
            self.page.get(login_page_url)
            
            # -------------------------------------------------------------
            # [核心修改] 2. 智能 Cloudflare 过盾逻辑
            # -------------------------------------------------------------
            self._log("Handling Cloudflare challenge...")
            
            # 初始化过盾助手
            cf_bypasser = CloudflareBypasser(self.page, log=self.config.debug)
            cf_token = ""
            
            # 循环检测 (40秒超时)
            for i in range(40):
                time.sleep(1)
                
                # A. 优先处理 Cookie 遮挡 (VFS 必须步骤)
                # 如果不关掉 cookie banner，验证码可能点不到
                self._handle_cookie_banner()
                
                # B. 尝试从 DOM 获取 Token (无感验证可能自动通过)
                try:
                    ele = self.page.ele('@name=cf-turnstile-response')
                    if ele and ele.value:
                        cf_token = ele.value
                        self._log("Cloudflare Turnstile token extracted.")
                        break
                except:
                    pass
                
                # C. 如果前 3 秒没自动出 Token，开始尝试点击
                if i > 2:
                    try:
                        # 开启 DFS 深度搜索模式 (防止 Shadow DOM 嵌套太深找不到)
                        # 在第 10 秒后开启深度搜索，前期用快速搜索
                        use_dfs = (i > 10)
                        
                        cf_bypasser.click_verification_button(is_dfs=use_dfs)
                    except Exception as e:
                        # 点击错误忽略，继续下一轮
                        pass
                
                # D. 检查是否已经看到了登录框 (有时候 Token 提取慢了，但页面已经变了)
                if self.page.ele('tag:form') or self.page.ele('#mat-input-0'):
                    self._log("Login form detected.")
                    # 继续尝试提取一次 Token，如果实在没有也不要死循环
                    if i > 5 and not cf_token:
                        self._log("Form visible but token not found yet...")
            
            # -------------------------------------------------------------
            
            if not cf_token:
                # 最后尝试一次强取
                try:
                    cf_token = self.page.ele('@name=cf-turnstile-response').value
                except:
                    pass
            
            if not cf_token:
                self._log("[WARN] Could not extract Turnstile token.")
                raise BizLogicError(f"Could not extract Turnstile token.")

            # 3. 准备登录 API 参数
            email = self.config.account.username
            password = self.config.account.password
            enc_password = self._encrypt_password(password)
            
            client_src = self._get_client_source()
            orange_src = self._get_orange_source(email)
            
            url = "https://lift-api.vfsglobal.com/user/login"
            headers = self._get_common_headers(with_auth=False)
            headers.update({
                "clientsource": client_src,
                "orangex": orange_src
            })
            
            data = {
                "username": email,
                "password": enc_password,
                "missioncode": mission,
                "countrycode": country,
                "languageCode": "en-US",
                "captcha_version": "cloudflare-v1",
                "captcha_api_key": cf_token 
            }
            
            self._log("Sending Login Request via Browser Fetch...")
            resp = self._perform_request("POST", url, headers=headers, json_data=data)
            resp_json = resp.json()

            # 分支 1: 登录成功
            if resp_json.get('accessToken'):
                self.jwt_token = resp_json["accessToken"]
                self._log("Login successful, JWT obtained.")
            
            # 分支 2: OTP
            elif resp_json.get("enableOTPAuthentication"):
                self._log("Login requires OTP.")
                # 注意：_submit_login_otp 内部也会调用 _refresh_turnstile_token
                # 所以这里旧的 cf_token 其实用处不大，传过去也没事
                otp = self._read_otp_email()
                self._submit_login_otp(cf_token, otp)
            
            else:
                raise BizLogicError(f"Login failed: {resp.text[:200]}")

            self.session_create_time = time.time()
            try:
                self.real_ip = self._get_realnetwork_ip()
            except:
                self.real_ip = "0.0.0.0"
                
        except Exception as e:
            self._log(f"Create Session Failed: {e}")
            self.cleanup()
            raise e

    def query(self) -> VSQueryResult:
        """查询可预约 Slot"""
        result = VSQueryResult() 
        apt_types = self.free_config.get("appointment_types", [])
        if not apt_types:
            raise NotFoundError(message="No matching appointment configuration found.")
        
        weights = [float(item.get("weight", 1)) for item in apt_types]
        apt_config = random.choices(apt_types, weights=weights, k=1)[0]
        
        try:
            self._fetch_configurations(apt_config)
            earliest_date = self._query_earliest_slot(apt_config)
            
            result.success = False
            result.availability_status = AvailabilityStatus.NoneAvailable
            result.visa_type = apt_config.get("visa_type", "")
            result.city = apt_config.get("city", "")
            result.country = apt_config.get("country", "")
            result.routing_key = apt_config.get("routing_key", "")
            if earliest_date:
                result.success = True
                if "WaitList" in earliest_date:
                    result.availability_status = AvailabilityStatus.Waitlist
                else:
                    result.availability_status = AvailabilityStatus.Available
                    result.earliest_date = earliest_date
                    result.availability = [DateAvailability(date=earliest_date, times=[])]
                    self._log(f"Slot Found! Date: {earliest_date}")
            else:
                self._log("No slots available.")
                
        except Exception as e:
            self._log(f"Query Error: {e}")
            raise e
            
        return result

    def _perform_request(self, method, url, headers=None, data=None, json_data=None, params=None, retry_count=0):
        """
        核心方法：在 DrissionPage 浏览器上下文中注入 JS 执行 fetch
        """
        if not self.page:
            raise BizLogicError("Browser session not initialized")

        # 1. 确保在正确的上下文 (VFS 登录页或 API 域名)
        # create_session 已经打开了页面，这里通常不需要额外跳转
        # 如果页面崩溃或跳转了，可能需要恢复
        
        # 2. 构造参数
        if params:
            if '?' in url:
                url += '&' + urllib.parse.urlencode(params)
            else:
                url += '?' + urllib.parse.urlencode(params)

        fetch_options = {
            "method": method.upper(),
            "headers": headers or {},
            "credentials": "include" # 关键：带上浏览器 Cookie
        }
        
        if json_data:
            fetch_options['body'] = json.dumps(json_data)
            fetch_options['headers']['Content-Type'] = 'application/json'
        elif data:
            if isinstance(data, dict):
                fetch_options['body'] = urllib.parse.urlencode(data)
                fetch_options['headers']['Content-Type'] = 'application/x-www-form-urlencoded'
            else:
                fetch_options['body'] = data

        # 3. 注入 JS
        js_script = f"""
        const url = "{url}";
        const options = {json.dumps(fetch_options)};
        
        return fetch(url, options)
            .then(async response => {{
                const text = await response.text();
                const headers = {{}};
                response.headers.forEach((value, key) => headers[key] = value);
                
                return {{
                    status: response.status,
                    body: text,
                    headers: headers,
                    url: response.url
                }};
            }})
            .catch(error => {{
                return {{
                    status: 0,
                    body: error.toString(),
                    headers: {{}},
                    url: url
                }};
            }});
        """
        
        if self.config.debug:
            self._log(f"[Browser Fetch] {method} {url}")

        try:
            # run_js 直接返回 return 的对象
            res_dict = self.page.run_js(js_script, timeout=30)
        except Exception as e:
            raise BizLogicError(f"Browser JS Execution Error: {e}")

        resp = BrowserResponse(res_dict)
        
        # 4. 统一处理状态码
        if resp.status_code == 200:
            return resp
        elif resp.status_code == 401:
            self.is_healthy = False
            raise SessionExpiredOrInvalidError(f"401 Unauthorized: {resp.text[:100]}")
        elif resp.status_code == 403:
            if "Just a moment" in resp.text or "cloudflare" in resp.text.lower():
                self._log(f"HTTP 403 (Cloudflare) detected. Re-verifying (Try {retry_count+1}/3)...")
                if retry_count < 3:
                    new_token = self._refresh_turnstile_token()
                    if new_token:
                        self._log("In-page verification success. Retrying...")
                        if json_data and "captcha_api_key" in json_data:
                            json_data["captcha_api_key"] = new_token
                        return self._perform_request(method, url, headers, data, json_data, params, retry_count+1)
            raise PermissionDeniedError(f"HTTP 403 Forbidden: {resp.text[:100]}")
        elif resp.status_code == 429:
            self.is_healthy = False
            raise RateLimiteddError(f"429 Rate Limit: {resp.text[:100]}")
        elif resp.status_code == 0:
            raise BizLogicError(f"Network Error (Fetch Failed): {resp.text}")
        else:
            # 允许 400 业务错误通过，交给上层解析 (例如登录失败)
            if url.endswith("/login") and resp.status_code == 400:
                return resp
            raise BizLogicError(message=f"HTTP Error {resp.status_code}: {resp.text[:100]}")

    def _handle_cookie_banner(self):
        """
        处理 OneTrust Cookie 遮挡
        策略：尝试点击“接受所有”，如果点不到就直接移除 DOM
        """
        try:
            # 使用 JS 处理最快，且不会因为元素运动报错
            js = """
            try {
                // 1. 尝试点击 '接受所有' 按钮
                var acceptBtn = document.getElementById('onetrust-accept-btn-handler');
                if (acceptBtn) {
                    acceptBtn.click();
                    return true;
                }
                
                // 2. 如果没有按钮，或者还在遮挡，直接把整个 banner 删掉
                var banner = document.getElementById('onetrust-banner-sdk');
                if (banner) {
                    banner.style.display = 'none'; // 隐藏
                    banner.remove(); // 或者移除
                    return true;
                }
            } catch(e) {}
            return false;
            """
            self.page.run_js(js)
        except:
            pass

    def _get_proxy_url(self):
        if self.config.proxy and self.config.proxy.ip:
            s = self.config.proxy
            if s.username:
                return f"{s.scheme}://{s.username}:{s.password}@{s.ip}:{s.port}"
            else:
                return f"{s.scheme}://{s.ip}:{s.port}"
        return None
    
    def _get_realnetwork_ip(self):
        """
        通过新建标签页获取 IP
        解决 CORS 403 问题：新标签页请求属于 Top-Level Navigation，
        不带 Origin: visa.vfsglobal.com，也不带 credentials，符合 ipify 规则。
        """
        try:
            # 1. 新建一个标签页 (后台静默打开)
            tab = self.page.new_tab("https://api.ipify.org/?format=json")
            
            # 2. 获取页面内容 (DrissionPage 会自动等待页面加载)
            # ipify 返回的是纯 JSON 文本，通常在 body 或 pre 标签里
            if tab.ele('tag:pre'):
                json_text = tab.ele('tag:pre').text
            else:
                json_text = tab.ele('tag:body').text
            
            # 3. 提取 IP
            ip = json.loads(json_text)['ip']
            
            # 4. 务必关闭标签页，释放资源
            tab.close()
            
            self._log(f"Real Network IP: {ip}")
            return ip
            
        except Exception as e:
            self._log(f"[WARN] Failed to check IP via new tab: {e}")
            # 尝试清理可能没关掉的标签页
            try:
                if self.page.tabs_count > 1:
                    tab.close()
            except:
                pass
            return "0.0.0.0"

    def _get_common_headers(self, with_auth=True) -> Dict[str, str]:
        # DrissionPage 浏览器会自动带上 Origin, Referer, User-Agent, Sec-CH-UA 等
        # 这里只需要补充业务特定的 Headers
        mission = self.free_config.get("mission_code", "")
        country = self.free_config.get("country_code", "")
        lang = self.free_config.get("language", "en")
        route = f"{country}/{lang}/{mission}"
        
        h = {
            "accept": "application/json, text/plain, */*",
            # "origin": ... 浏览器自动处理
            # "referer": ... 浏览器自动处理
            "route": route
        }
        
        # 即使是浏览器环境，VFS 也需要这两个加密参数
        # 注意：这里可能需要从 JS 获取，或者保持 Python 生成
        # 如果 Python 生成的总是报错，可以考虑把加密逻辑移到 JS 里跑
        h["clientsource"] = self._get_client_source()
        
        if with_auth and self.jwt_token:
            h["authorize"] = self.jwt_token
            
        return h

    def _encrypt_password(self, password: str) -> str:
        ciphertext = self.public_key.encrypt(
            password.encode(),
            padding.OAEP(
                mgf=padding.MGF1(algorithm=hashes.SHA256()),
                algorithm=hashes.SHA256(),
                label=None
            )
        )
        return base64.b64encode(ciphertext).decode()

    def _get_orange_source(self, email: str) -> str:
        timestamp = datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S")
        payload = f"{email};{timestamp}"
        return self._encrypt_password(payload)

    def _get_client_source(self) -> str:
        timestamp = datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S")
        payload = f"GA;{timestamp}Z"
        return self._encrypt_password(payload)

    def _query_earliest_slot(self, apt_config) -> Optional[str]:
        url = "https://lift-api.vfsglobal.com/appointment/CheckIsSlotAvailable"
        data = {
            "missioncode": self.free_config.get("mission_code"),
            "countrycode": self.free_config.get("country_code"),
            "vacCode": apt_config.get("vac_code"),
            "visaCategoryCode": apt_config.get("subcategory_code"),
            "roleName": "Individual",
            "loginUser": self.config.account.username,
            "payCode": ""
        }
        headers = self._get_common_headers(with_auth=True)
        # fetch 不需要显式 content-type application/json，json_data会自动处理
        
        # DrissionPage 不需要手动处理 403 绕盾，因为浏览器本身就在盾后面
        resp = self._perform_request("POST", url, headers=headers, json_data=data, retry_count=2)
        
        if "WaitList" in resp.text:
            return "WaitList"

        j = resp.json()
        if j.get("earliestSlotLists"):
            raw_date = j["earliestSlotLists"][0]["date"]
            return to_yyyymmdd(raw_date, "%m/%d/%Y %H:%M:%S")
        return ""

    def _fetch_configurations(self, apt_config: Dict[str, Any]):
        if not self.center_conf:
            self.center_conf = self._query_center()

        vac_code = apt_config.get("vac_code")
        category_code = apt_config.get("category_code")
        
        if category_code not in self.category_conf:
            visa_categories = self._query_visa_category(vac_code)
            found = False
            for vc in visa_categories:
                if vc.get("code") == category_code:
                    self.category_conf[category_code] = vc
                    found = True
                    break
            if not found:
                self._log(f"WARN: Category {category_code} not found")

        sub_category_code = apt_config.get("subcategory_code")
        if sub_category_code not in self.subcategory_conf:
            visa_subcategories = self._query_visa_sub_category(vac_code, category_code)
            found = False
            for svc in visa_subcategories:
                if svc.get("code") == sub_category_code:
                    self.subcategory_conf[sub_category_code] = svc
                    found = True
                    break
            if not found:
                self._log(f"WARN: SubCategory {sub_category_code} not found")

    def _query_center(self) -> List:
        mission = self.free_config.get("mission_code")
        country = self.free_config.get("country_code")
        url = f"https://lift-api.vfsglobal.com/master/center/{mission}/{country}/en-US"
        headers = self._get_common_headers(with_auth=False)
        resp = self._perform_request("GET", url, headers=headers)
        return resp.json()
   
    def _query_visa_category(self, center_code: str) -> List:
        mission = self.free_config.get("mission_code")
        country = self.free_config.get("country_code")
        enc_center = urllib.parse.quote(center_code)
        url = f"https://lift-api.vfsglobal.com/master/visacategory/{mission}/{country}/{enc_center}/en-US"
        headers = self._get_common_headers(with_auth=False)
        resp = self._perform_request("GET", url, headers=headers)
        return resp.json()
 
    def _query_visa_sub_category(self, center_code: str, category_code: str) -> List:
        mission = self.free_config.get("mission_code")
        country = self.free_config.get("country_code")
        enc_center = urllib.parse.quote(center_code)
        enc_cat = urllib.parse.quote(category_code)
        url = f"https://lift-api.vfsglobal.com/master/subvisacategory/{mission}/{country}/{enc_center}/{enc_cat}/en-US"
        headers = self._get_common_headers(with_auth=False)
        resp = self._perform_request("GET", url, headers=headers)
        return resp.json()            

    def _read_otp_email(self) -> str:
        # 保持原样，这部分使用云API读取邮件，不依赖本地网络库
        master_email = "visafly666@gmail.com"
        recipient = self.config.account.username
        sender = "donotreply at vfshelpline.com"
        subject_keywords = "One Time Password"
        body_keywords = "OTP"
        now_utc = datetime.utcnow()
        formatted_utc_time = now_utc.strftime("%Y-%m-%d %H:%M:%S")
        self._log(f"Waiting for OTP email...")
        for i in range(12):
            content_out = VSCloudApi.Instance().fetch_mail_content(
                master_email, sender, recipient, subject_keywords, body_keywords, formatted_utc_time, 300
            )
            if content_out:
                match = re.search(r'\b\d{6}\b', content_out)
                if match:
                    return match.group(0)
            time.sleep(5)
        raise NotFoundError(message="OTP email not found")

    def _submit_login_otp(self, old_cf_token: str, otp: str):
        self._log("Submitting Login OTP...")
        
        # --- [新增] 必须刷新 Token ---
        # 旧的 old_cf_token 已经在第一步登录时失效了
        new_cf_token = self._refresh_turnstile_token()
        # ---------------------------

        email = self.config.account.username
        password = self.config.account.password
        enc_password = self._encrypt_password(password)
        mission = self.free_config.get("mission_code", "")
        country = self.free_config.get("country_code", "")
        
        client_src = self._get_client_source()
        orange_src = self._get_orange_source(email)
        
        url = "https://lift-api.vfsglobal.com/user/login"
        headers = self._get_common_headers(with_auth=False)
        headers.update({
            "clientsource": client_src,
            "orangex": orange_src
        })
        
        data = {
            "username": email,
            "password": enc_password,
            "missioncode": mission,
            "countrycode": country,
            "languageCode": "en-US",
            "captcha_version": "cloudflare-v1",
            "captcha_api_key": new_cf_token,
            "otp": otp 
        }
        
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        resp_json = resp.json()
        
        if resp_json.get("accessToken"):
            self.jwt_token = resp_json["accessToken"]
            self._log("OTP Login successful.")
            return

        # 增加错误详情日志
        error_desc = resp_json.get("description", resp.text)
        raise PermissionDeniedError(message=f"OTP Login Failed: {error_desc}")
    
    def _refresh_turnstile_token(self) -> str:
        """
        强制刷新 Cloudflare Turnstile 并获取新 Token (集成 CloudflareBypasser 版)
        """
        self._log("Refreshing Cloudflare Turnstile token...")
        
        # 1. JS 强制重置 (保持不变)
        js_reset = """
        try {
            var input = document.querySelector('input[name="cf-turnstile-response"]');
            if (input) input.value = "";
            window.turnstile.reset(); 
        } catch(e) {
            console.log("Turnstile reset error:", e);
        }
        """
        self.page.run_js(js_reset)
        
        # 2. 初始化过盾助手
        # 假设 CloudflareBypasser 类已在当前文件中定义
        cf_bypasser = CloudflareBypasser(self.page, log=self.config.debug)
        
        # 3. 轮询等待 (30秒)
        for i in range(60): 
            time.sleep(0.5)
            
            # A. 检查 Token 是否已生成
            # 使用 DrissionPage 的方式获取 value 比较稳定
            try:
                ele = self.page.ele('@name=cf-turnstile-response')
                if ele and ele.value:
                    self._log("Turnstile token refreshed successfully.")
                    return ele.value
            except:
                pass
            
            # B. 尝试点击验证框
            # 策略：前2秒等待，之后开始尝试点击
            if i > 4: 
                # [重要] VFS 经常有 Cookie 弹窗遮挡，先尝试清理一下
                self._handle_cookie_banner()
                
                try:
                    # 使用 CloudflareBypasser 的高级点击逻辑
                    # is_dfs=True 表示如果普通搜索找不到，就递归搜索 iframe (更耗时但更强)
                    # 我们在尝试 10 次 (5秒) 后开启 DFS 模式
                    use_dfs = (i > 14)
                    
                    cf_bypasser.click_verification_button(is_dfs=use_dfs)
                except Exception as e:
                    # 点击过程报错不要中断主循环
                    pass
        
        raise BizLogicError("Failed to refresh Cloudflare Turnstile token (Timeout)")

    # -------------------------------------------------------------
    # 核心预约逻辑 (DrissionPage 版)
    # -------------------------------------------------------------

    def book(self, slot_info: VSQueryResult, user_inputs) -> VSBookResult:
        """
        执行完整的预约流程
        """
        self._log("Starting booking process...")
        
        # 1. 准备数据
        user_email = user_inputs.get('email')
        # 生成别名邮箱 (防止邮箱被 VFS 黑名单)
        user_inputs['alias_email'] = get_alias_email(user_email, new_domain="gmail-app.com")
        
        res = VSBookResult()
        slot_routing_key = slot_info.routing_key
        # 如果没有 earliest_date，默认从今天开始
        from_date = slot_info.earliest_date if slot_info.earliest_date else datetime.now().strftime("%Y-%m-%d")
        
        # 2. 查找对应的配置
        apt_config = None
        appt_types = self.free_config.get("appointment_types", [])
        for apt in appt_types:
            if apt.get("routing_key") == slot_routing_key:
                apt_config = apt
                break
        
        if not apt_config:
            raise NotFoundError(message="Book: Config missing for this routing key.")

        # 确保配置已加载 (SubCategory 等)
        self._fetch_configurations(apt_config)

        sub_cc = apt_config.get("subcategory_code")
        sub_conf = self.subcategory_conf.get(sub_cc, {})

        # 3. OCR 识别 / 文档上传 (如果需要)
        # 上传结果存入 user_inputs 供后续使用
        ocr_enabled = sub_conf.get("isOCREnable", False)
        if ocr_enabled:
            self._log("OCR Enabled, uploading documents...")
            upload_res = self._upload_applicant_documents(apt_config, user_inputs)
            user_inputs["applicant_image"] = upload_res.get("passportImageFilename")
            user_inputs["applicant_image_data"] = upload_res.get("passportImageFileBytes")
            user_inputs["guid"] = upload_res.get("uploadDocumentGUID")

        enable_reference_number = sub_conf.get("enableReferenceNumber", False)

        # 4. 添加申请人 (核心步骤 1)
        final_urn = None
        is_waitlist = (slot_info.availability_status == AvailabilityStatus.Waitlist)
        
        # 重试机制：添加申请人有时候会因为并发冲突失败
        MAX_RETRY = 3
        for i in range(MAX_RETRY):
            try:
                final_urn = self._add_primary_applicant(apt_config, user_inputs, is_waitlist, ocr_enabled, enable_reference_number)
                if final_urn:
                    break
            except Exception as e:
                self._log(f"Add Applicant retry {i+1}/{MAX_RETRY}: {e}")
                time.sleep(2)
        
        if not final_urn:
            raise BizLogicError(message="Failed to add primary applicant (Slot likely taken or API error)")

        self._log(f"Applicant Added. URN: {final_urn}")

        # 5. 申请人 OTP 验证 (核心步骤 2 - 视配置而定)
        otp_enabled = sub_conf.get("isApplicantOTPEnabled", False)
        if otp_enabled:
            self._log("Applicant OTP Required.")
            if not self._applicant_otp_send(apt_config, final_urn):
                raise BizLogicError(message='Applicant OTP send failed')
            
            # 复用之前的读邮件逻辑
            otp_code = self._read_otp_email()
            if not self._applicant_otp_verify(apt_config, final_urn, otp_code):
                raise BizLogicError(message='Applicant OTP verify failed')

        # 6. Waitlist 模式直接返回
        if is_waitlist:
            if self._confirm_waitlist(apt_config, final_urn):
                res.success = True
                res.urn = final_urn
                self._log("Waitlist confirmed.")
                return res
            raise BizLogicError(message='Confirm waitlist failed')

        # 7. 寻找具体的时间槽 (核心步骤 3)
        expected_start = user_inputs.get("expected_start_date", "")
        expected_end = user_inputs.get("expected_end_date", "")
        
        # 计算需要扫描的月份
        months = self._get_filtered_covered_months(expected_start, expected_end, from_date)
        self._log(f"Scanning months: {months} (Start looking from: {from_date})")
        
        selected_slot_id = ""
        selected_slot_date = ""
        selected_slot_time_range = ""
        
        all_ads = set()
        forbidden_dates = set()
        found_slot = False
        
        for m_str in months:
            self._log(f"Checking calendar for {m_str}...")
            # 查询日历
            ads = self._query_slot_calendar(apt_config, final_urn, m_str)
            
            # 去重
            new_ads = [d for d in ads if d not in all_ads]
            all_ads.update(new_ads)
            
            # 尝试选中一个日期
            # 这里做一个简单循环，如果选中日期没时间了，就换一个日期
            for _ in range(3):
                avail_candidates = [d for d in list(all_ads) if d not in forbidden_dates]
                # 根据用户期望过滤
                sel_dates = self._filter_dates(avail_candidates, expected_start, expected_end)
                
                if not sel_dates:
                    break # 当前月没有符合要求的日期，去下一个月
                
                tmp_date = sel_dates[0] # 取第一个（通常 _filter_dates 里已经 shuffle 过了）
                forbidden_dates.add(tmp_date) # 标记为已尝试
                
                # 关键：Audit Log (锁定日期)
                # VFS 要求在查 timeslot 之前必须先发这个请求
                if not self._saveuseractionaudit(apt_config, final_urn, tmp_date):
                    self._log(f"Audit failed for {tmp_date}, skipping...")
                    time.sleep(1)
                    continue
                
                # 查询具体时间
                ats = self._query_slot_time(apt_config, final_urn, tmp_date)
                if not ats:
                    self._log(f"No timeslots for {tmp_date}")
                    continue
                
                # 随机选一个时间
                sel_tm = random.choice(ats)
                
                selected_slot_id = sel_tm.get("allocationId")
                selected_slot_date = tmp_date
                selected_slot_time_range = sel_tm.get("slot")
                
                found_slot = True
                break
            
            if found_slot:
                break
                
        if not found_slot:
            self._log("No valid slots found after scanning.") 
            res.success = False
            return res

        self._log(f"Slot Selected: {selected_slot_date} {selected_slot_time_range} (ID: {selected_slot_id})")

        # 8. 服务与费用 (核心步骤 4)
        self._submit_no_addition_service(final_urn)
        amount, currency = self._query_fee(apt_config, final_urn)
        
        # 9. 最终提交
        self._log("Submitting schedule...")
        schedule_res = self._schedule(apt_config, final_urn, amount, currency, selected_slot_id)
        
        if not schedule_res.get("IsAppointmentBooked"):
            self._log(f"Booking failed: {schedule_res}") 
            res.success = False
            return res
             
        # 10. 构造成功结果
        res.success = True
        res.account = self.config.account.username
        res.book_date = selected_slot_date
        res.book_time = selected_slot_time_range
        res.urn = final_urn
        res.fee_amount = int(amount * 100)
        res.fee_currency = currency
        
        # 11. 处理支付链接
        if schedule_res.get("IsPaymentRequired", False):
            payload = schedule_res.get("payLoad", "")
            if payload:
                self._log("Processing payment link...")
                payment_url = self._pay_request(payload)
                if payment_url:
                    res.payment_link = payment_url
                    
        return res

    # -------------------------------------------------------------
    # 辅助方法实现 (DrissionPage 适配版)
    # -------------------------------------------------------------

    def _upload_applicant_documents(self, apt_config, user_inputs) -> Dict:
        """上传图片：先下载外部图片，再通过浏览器上传到 VFS"""
        import requests as standard_requests # 使用标准库下载外部资源
        
        url = "https://lift-api.vfsglobal.com/appointment/UploadApplicantDocument"
        passport_url = user_inputs.get("passport_image_url")
        if not passport_url:
            raise NotFoundError(message="Missing passport_image_url")

        # 下载图片 (不走代理或走系统代理，不使用 DrissionPage，因为是外部链接)
        try:
            img_resp = standard_requests.get(passport_url, timeout=30)
            if img_resp.status_code != 200:
                raise BizLogicError(message=f"Failed to download passport image: {img_resp.status_code}")
            b64_str = base64.b64encode(img_resp.content).decode('utf-8')
        except Exception as e:
            raise BizLogicError(message=f"Image download error: {e}")
  
        headers = self._get_common_headers(with_auth=True)
        # DrissionPage fetch 不需要显式 content-type application/json，json_data会自动处理
        
        data = {
            "missioncode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "loginUser": self.config.account.username,
            "languageCode": "en-US",
            "visaCategoryCode": apt_config.get("subcategory_code"),
            "fileBytes": b64_str,
            "selfiImageFileBytes": ""
        }
        
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        result = resp.json()
        
        # 补充返回数据供后续使用
        result["passportImageFilename"] = "passport_img.jpg"
        result["passportImageFileBytes"] = b64_str
        return result
   
    def _add_primary_applicant(self, apt_config: Dict[str, Any], user_inputs: Dict[str, Any], 
                             is_waitlist: bool, ocr_enabled: bool, enable_ref: bool) -> str:
        """构造申请人 payload 并提交"""
        url = "https://lift-api.vfsglobal.com/appointment/applicants"
        headers = self._get_common_headers(with_auth=True)

        gender_str = str(user_inputs.get("gender", "")).lower()
        gender_code = 1 if gender_str == "male" else 2

        raw_dial = user_inputs.get("phone_country_code", "86")
        dial_code = str(raw_dial)

        # 日期格式转换 YYYY-MM-DD -> DD/MM/YYYY
        def _to_ddmmyyyy(d_str):
            try:
                return datetime.strptime(str(d_str), "%Y-%m-%d").strftime("%d/%m/%Y")
            except:
                return str(d_str)

        dob = _to_ddmmyyyy(user_inputs.get("birthday", ""))
        ppt_exp = _to_ddmmyyyy(user_inputs.get("passport_expiry_date", ""))

        applicant = {
            "urn": "",
            "arn": "",
            "loginUser": self.config.account.username,
            "firstName": str(user_inputs.get("first_name", "")).upper(),
            "middleName": "",
            "lastName": str(user_inputs.get("last_name", "")).upper(),
            "employerFirstName": "",
            "employerLastName": "",
            "salutation": "",
            "gender": gender_code,
            "contactNumber": str(user_inputs.get("phone", "")),
            "dialCode": dial_code,
            "employerContactNumber": "",
            "employerDialCode": "",
            "emailId": str(user_inputs.get("alias_email", "")).upper(),
            "employerEmailId": "",
            "passportNumber": str(user_inputs.get("passport_no", "")).upper(),
            "confirmPassportNumber": "",
            "passportExpirtyDate": ppt_exp,
            "dateOfBirth": dob,
            "nationalId": None,
            "nationalityCode": get_country_iso3(str(user_inputs.get("nationality", ""))),
            "state": None, "city": None, "addressline1": None, "addressline2": None, "pincode": None,
            "isEndorsedChild": False, "applicantType": 0, "vlnNumber": None, "applicantGroupId": 0,
            "parentPassportNumber": "", "parentPassportExpiry": "", "dateOfDeparture": None,
            "entryType": "", "eoiVisaType": "", "passportType": "", "vfsReferenceNumber": "",
            "familyReunificationCerificateNumber": "", "PVRequestRefNumber": "", "PVStatus": "",
            "PVStatusDescription": "", "PVCanAllowRetry": True, "PVisVerified": False,
            "eefRegistrationNumber": "", "isAutoRefresh": True, "helloVerifyNumber": "",
            "OfflineCClink": "", "idenfystatuscheck": False, "vafStatus": None,
            "SpecialAssistance": "", "AdditionalRefNo": None, "juridictionCode": "",
            "canInitiateVAF": False, "canEditVAF": False, "canDeleteVAF": False,
            "canDownloadVAF": False, "Retryleft": "",
            # 这里的 IP 应该已经在 create_session 时获取到了
            "ipAddress": self.real_ip
        }

        if enable_ref:
            applicant["referenceNumber"] = str(user_inputs.get("cover_letter", ""))
        else:
            applicant["referenceNumber"] = None

        if ocr_enabled:
            applicant["applicantImage"] = str(user_inputs.get("applicant_image", ""))
            applicant["applicantImageData"] = str(user_inputs.get("applicant_image_data", ""))
            applicant["GUID"] = str(user_inputs.get("guid", ""))

        payload = {
            "countryCode": self.free_config.get("country_code"),
            "missionCode": self.free_config.get("mission_code"),
            "centerCode": apt_config.get("vac_code"),
            "loginUser": self.config.account.username,
            "visaCategoryCode": apt_config.get("subcategory_code"),
            "applicantList": [applicant],
            "languageCode": "en-US",
            "isWaitlist": is_waitlist,
            "isEdit": False,
            "feeEntryTypeCode": None, "feeExemptionTypeCode": None, 
            "feeExemptionDetailsCode": None, "juridictionCode": None, "regionCode": None
        }

        resp = self._perform_request("POST", url, headers=headers, json_data=payload)
        return resp.json().get("urn")
    
    def _applicant_otp_send(self, apt_config, urn) -> bool:
        url = "https://lift-api.vfsglobal.com/appointment/applicantotp"
        headers = self._get_common_headers(with_auth=True)
        data = {
            "urn": urn,
            "loginUser": self.config.account.username,
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "OTP": "",
            "otpAction": "GENERATE",
            "languageCode": "en-US"
        }
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        return resp.json().get("isOTPGenerated", False)

    def _applicant_otp_verify(self, apt_config, urn, otp) -> bool:
        url = "https://lift-api.vfsglobal.com/appointment/applicantotp"
        headers = self._get_common_headers(with_auth=True)
        # VFS 这里的 header 有时需要 datacenter，原代码有就加上
        headers["datacenter"] = "GERMANY" 
        data = {
            "urn": urn,
            "loginUser": self.config.account.username,
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "OTP": otp,
            "otpAction": "VALIDATE",
            "languageCode": "en-US"
        }
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        return resp.json().get("isOTPValidated", False)
        
    def _query_slot_calendar(self, apt_config, urn, from_date) -> List:
        url = "https://lift-api.vfsglobal.com/appointment/calendar"
        headers = self._get_common_headers(with_auth=True)
        
        # 将 YYYY-MM-DD 转为 DD/MM/YYYY 用于 API
        dt_m = datetime.strptime(from_date, "%Y-%m-%d")
        converted_date = dt_m.strftime("%d/%m/%Y")
        
        data = {
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "loginUser": self.config.account.username,
            "visaCategoryCode": apt_config.get("subcategory_code"),
            "fromDate": converted_date,
            "urn": urn,
            "payCode": ""
        }
        
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        calendars = resp.json().get("calendars")
        ads_out = []
        if calendars:
            for item in calendars:
                # API 返回可能是 MM/DD/YYYY 或 DD/MM/YYYY，VFS 比较乱
                # 通常是 MM/DD/YYYY
                raw = item.get("date")
                ads_out.append(to_yyyymmdd(raw, "%m/%d/%Y"))
        return ads_out
     
    def _query_slot_time(self, apt_config, urn, slot_date) -> List:
        url = "https://lift-api.vfsglobal.com/appointment/timeslot"
        headers = self._get_common_headers(with_auth=True)
        
        dt_m = datetime.strptime(slot_date, "%Y-%m-%d")
        converted_date = dt_m.strftime("%d/%m/%Y")
        
        data = {
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "loginUser": self.config.account.username,
            "visaCategoryCode": apt_config.get("subcategory_code"),
            "slotDate": converted_date,
            "urn": urn
        }
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        return resp.json().get("slots", [])

    def _saveuseractionaudit(self, apt_config, urn, earliest_date) -> bool:
        url = "https://lift-api.vfsglobal.com/appointment/saveuseractionaudit"
        headers = self._get_common_headers(with_auth=True)
        
        dt = datetime.strptime(earliest_date, "%Y-%m-%d")

        data = {
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "loginUser": self.config.account.username,
            "urn": urn,
            "firstEarliestSlotDate": dt.strftime("%d/%m/%Y"),
            "action": "schedule",
            "ipAddress": self.real_ip,
            "eadAppointmentDetail": dt.strftime("%Y-%m-%dT%H:%M:%S")
        }
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        return resp.json().get("isSavedSuccess", False)
        
    def _submit_no_addition_service(self, urn):
        url = "https://lift-api.vfsglobal.com/vas/mapvas"
        headers = self._get_common_headers(with_auth=True)
        data = {
            "loginUser": self.config.account.username,
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "urn": urn,
            "applicants": []
        }
        # 只要不报错即可
        self._perform_request("POST", url, headers=headers, json_data=data)

    def _query_fee(self, apt_config, urn) -> Tuple[float, str]:
        url = "https://lift-api.vfsglobal.com/appointment/fees"
        headers = self._get_common_headers(with_auth=True)
        data = {
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "loginUser": self.config.account.username,
            "urn": urn,
            "languageCode": "en-US"
        }
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        j = resp.json()
        total = j.get("totalamount", 0.0)
        currency = "EUR"
        if j.get("feeDetails"):
            currency = j["feeDetails"][0].get("currency", "EUR")
        return total, currency

    def _schedule(self, apt_config, urn, amount, currency, slot_id) -> Dict:
        url = "https://lift-api.vfsglobal.com/appointment/schedule"
        headers = self._get_common_headers(with_auth=True)
        data = {
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "loginUser": self.config.account.username,
            "urn": urn,
            "notificationType": "none",
            "paymentdetails": {
                "paymentmode": "Online",
                "RequestRefNo": "",
                "clientId": "",
                "merchantId": "",
                "amount":  amount,
                "currency": currency
            },
            "allocationId": str(slot_id),
            "CanVFSReachoutToApplicant": True
        }
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        return resp.json()

    def _pay_request(self, payload) -> str:
        """
        解析支付重定向 URL (DrissionPage 新标签页版)
        """
        # 初始 URL，通常是一个 Redirect 接口
        start_url = f"https://online.vfsglobal.com/PG-Component/Payment/PayRequest?payLoad={payload}"
        final_url = ""
        
        try:
            self._log("Resolving payment redirect...")
            # 使用新标签页去跑，以免当前会话状态丢失
            pay_tab = self.page.new_tab(start_url)
            
            # 等待跳转完成 (通常会跳到 Stripe, WorldPay 或其他支付网关)
            # 等待直到 URL 不再是 PayRequest
            pay_tab.wait.url_change(start_url, timeout=15)
            
            final_url = pay_tab.url
            self._log(f"Payment URL resolved: {final_url}")
            
            # 关闭标签页
            pay_tab.close()
            
        except Exception as e:
            self._log(f"[WARN] Failed to resolve payment URL: {e}")
            try:
                pay_tab.close()
            except:
                pass
                
        return final_url

    def _confirm_waitlist(self, apt_config: Dict[str, Any], urn: str) -> bool:
        url = "https://lift-api.vfsglobal.com/appointment/ConfirmWaitlist"
        headers = self._get_common_headers(with_auth=True)
        data = {
            "missionCode": self.free_config.get("mission_code"),
            "countryCode": self.free_config.get("country_code"),
            "centerCode": apt_config.get("vac_code"),
            "loginUser": self.config.account.username,
            "urn": urn,
            "notificationType": "none",
            "CanVFSReachoutToApplicant": True
        }
        resp = self._perform_request("POST", url, headers=headers, json_data=data)
        return resp.json().get("isConfirmed", False)

    def _filter_dates(self, dates: List[str], start_str: str, end_str: str) -> List[str]:
        if not start_str or not end_str:
            return dates
        valid_dates = []
        try:
            s_date = datetime.strptime(start_str[:10], "%Y-%m-%d")
            e_date = datetime.strptime(end_str[:10], "%Y-%m-%d")
            for date_str in dates:
                curr_date = datetime.strptime(date_str, "%Y-%m-%d")
                if s_date <= curr_date <= e_date:
                    valid_dates.append(date_str)
            random.shuffle(valid_dates)
            return valid_dates
        except:
            return dates

    def _get_filtered_covered_months(self, start_date, end_date, from_date) -> List[str]:
        fmt = "%Y-%m-%d"
        try:
            dt_start = datetime.strptime(start_date, fmt) if start_date else datetime.now()
            dt_end = datetime.strptime(end_date, fmt) if end_date else datetime.now().replace(year=datetime.now().year + 1)
            try:
                dt_from = datetime.strptime(from_date, fmt)
            except:
                dt_from = datetime.now()
        except:
            return []

        dt_start = dt_start.replace(day=1)
        dt_end = dt_end.replace(day=1)
        dt_from = dt_from.replace(day=1)
        curr = max(dt_start, dt_from)
        
        months = []
        while curr <= dt_end:
            months.append(curr.strftime(fmt))
            if curr.month == 12:
                curr = curr.replace(year=curr.year + 1, month=1)
            else:
                curr = curr.replace(month=curr.month + 1)
        return months
    
    # --- 资源清理核心方法 ---
    def cleanup(self):
        """
        销毁浏览器并彻底删除临时文件
        """
        # 1. 关闭浏览器
        if self.page:
            try:
                self.page.quit() # 这会关闭 Chrome 进程
            except Exception:
                pass # 忽略已关闭的错误
            self.page = None
        
        # 2. 删除文件
        # 注意：Chrome 关闭后可能需要几百毫秒释放文件锁，稍微等待
        if os.path.exists(self.root_workspace):
            for _ in range(3):
                try:
                    time.sleep(0.2)
                    shutil.rmtree(self.root_workspace, ignore_errors=True)
                    break
                except Exception as e:
                    # 如果删除失败(通常是Windows文件占用)，重试
                    self._log(f"Cleanup retry: {e}")
                    time.sleep(0.5)
            
            # 如果依然存在，打印警告（虽然 ignore_errors=True 会掩盖报错，但可以 check exists）
            if os.path.exists(self.root_workspace):
                 self._log(f"[WARN] Failed to fully remove workspace: {self.root_workspace}")
                 
        # 3. [新增] 关闭代理隧道
        if self.tunnel:
            try: self.tunnel.stop()
            except: pass
            self.tunnel = None
                 
    def __del__(self):
        """
        析构函数：当对象被垃圾回收时自动调用
        """
        self.cleanup()