WeChat 4.0 database decryptor and real-time message monitor

Extract encryption keys from Weixin.exe process memory, decrypt all
SQLCipher 4 databases, and monitor new messages via Web UI with ~100ms latency.

config.py

@@ -0,0 +1,36 @@
+"""
+配置加载器 - 从 config.json 读取路径配置
+首次运行时自动生成 config.json 模板
+"""
+import json
+import os
+import sys
+
+CONFIG_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "config.json")
+
+_DEFAULT = {
+    "db_dir": r"D:\xwechat_files\your_wxid\db_storage",
+    "keys_file": "all_keys.json",
+    "decrypted_dir": "decrypted",
+    "wechat_process": "Weixin.exe",
+}
+
+
+def load_config():
+    if not os.path.exists(CONFIG_FILE):
+        with open(CONFIG_FILE, "w") as f:
+            json.dump(_DEFAULT, f, indent=4)
+        print(f"[!] 已生成配置文件: {CONFIG_FILE}")
+        print("    请修改 config.json 中的路径后重新运行")
+        sys.exit(1)
+
+    with open(CONFIG_FILE) as f:
+        cfg = json.load(f)
+
+    # 将相对路径转为绝对路径
+    base = os.path.dirname(os.path.abspath(__file__))
+    for key in ("keys_file", "decrypted_dir"):
+        if key in cfg and not os.path.isabs(cfg[key]):
+            cfg[key] = os.path.join(base, cfg[key])
+
+    return cfg