feat: Implement proxy pool management and integrate it into the bot.

bot.py

@@ -660,35 +660,80 @@ async def cmd_verify(update: Update, context: ContextTypes.DEFAULT_TYPE):
     from curl_cffi import requests as cffi_requests
     from config import get_proxy
 
-    results = []
-    for i, acc in enumerate(accounts, 1):
-        sk = acc.get("session_key", "")
-        email = acc.get("email", "?")
-        if not sk:
-            results.append({"email": email, "ok": False, "reason": "SK 为空"})
-            continue
+    _VERIFY_URL = "https://claude.ai/api/organizations"
+    _MAX_RETRIES = 2  # 代理重试次数
 
+    def _do_verify_request(sk: str, proxies: dict, timeout: int = 15):
+        """发送验证请求，返回 (status_code, error_str)"""
         try:
             resp = cffi_requests.get(
-                "https://claude.ai/api/organizations",
+                _VERIFY_URL,
                 headers={
                     "Cookie": f"sessionKey={sk}",
                     "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
                 },
                 impersonate="chrome124",
-                proxies=get_proxy(),
-                timeout=15,
+                proxies=proxies,
+                timeout=timeout,
             )
-            if resp.status_code == 200:
-                results.append({"email": email, "ok": True, "reason": "有效"})
-            elif resp.status_code == 401:
-                results.append({"email": email, "ok": False, "reason": "已过期"})
-            elif resp.status_code == 403:
-                results.append({"email": email, "ok": False, "reason": "被封禁"})
-            else:
-                results.append({"email": email, "ok": False, "reason": f"HTTP {resp.status_code}"})
+            return resp.status_code, None
         except Exception as e:
-            results.append({"email": email, "ok": False, "reason": str(e)[:50]})
+            return None, str(e)[:80]
+
+    results = []
+    total = len(accounts)
+    for i, acc in enumerate(accounts, 1):
+        sk = acc.get("session_key", "")
+        email = acc.get("email", "?")
+
+        # 更新进度
+        bar = _progress_bar(i - 1, total)
+        await _edit_or_send(
+            status_msg,
+            f"🔍 验证中... {bar}\n"
+            f"⏳ {email}",
+        )
+
+        if not sk:
+            results.append({"email": email, "ok": False, "reason": "SK 为空"})
+            continue
+
+        status_code = None
+        last_error = None
+        used_direct = False
+
+        # 阶段 1：通过代理尝试（最多 _MAX_RETRIES 次）
+        proxy = get_proxy()
+        if proxy:
+            for attempt in range(_MAX_RETRIES):
+                status_code, err = _do_verify_request(sk, proxy)
+                if status_code is not None:
+                    break
+                last_error = err
+                logger.warning(f"验证重试 {attempt + 1}/{_MAX_RETRIES} ({email}): {err}")
+                time.sleep(1)
+
+        # 阶段 2：代理全部失败 → 直连回退
+        if status_code is None:
+            logger.info(f"代理失败，直连回退验证: {email}")
+            status_code, err = _do_verify_request(sk, {}, timeout=20)
+            if status_code is None:
+                last_error = err
+            else:
+                used_direct = True
+
+        # 解析结果
+        if status_code is None:
+            results.append({"email": email, "ok": False, "reason": f"网络错误: {last_error}"})
+        elif status_code == 200:
+            suffix = " (直连)" if used_direct else ""
+            results.append({"email": email, "ok": True, "reason": f"有效{suffix}"})
+        elif status_code == 401:
+            results.append({"email": email, "ok": False, "reason": "已过期"})
+        elif status_code == 403:
+            results.append({"email": email, "ok": False, "reason": "被封禁"})
+        else:
+            results.append({"email": email, "ok": False, "reason": f"HTTP {status_code}"})
 
     valid = sum(1 for r in results if r["ok"])
     invalid = len(results) - valid