v3 push

new_server_7003/api/crypt.py

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+from Crypto.Cipher import AES
+import re
+import urllib.parse
+from starlette.requests import Request
+
+# Found in: aesManager::initialize()
+# Used for: Crypting parameter bytes sent by client
+# Credit: https://github.com/Walter-o/gcm-downloader
+AES_CBC_KEY = b"oLxvgCJjMzYijWIldgKLpUx5qhUhguP1"
+
+# Found in: aesManager::decryptCBC() and aesManager::encryptCBC()
+# Used for: Crypting parameter bytes sent by client
+# Credit: https://github.com/Walter-o/gcm-downloader
+AES_CBC_IV = b"6NrjyFU04IO9j9Yo"
+
+# Decrypt AES encrypted data, takes in a hex string
+# Credit: https://github.com/Walter-o/gcm-downloader
+def decryptAES(data, key=AES_CBC_KEY, iv=AES_CBC_IV):
+    return AES.new(key, AES.MODE_CBC, iv).decrypt(bytes.fromhex(data))
+
+# Encrypt data with AES, takes in a bytes object
+# Credit: https://github.com/Walter-o/gcm-downloader
+def encryptAES(data, key=AES_CBC_KEY, iv=AES_CBC_IV):
+    while len(data) % 16 != 0:
+        data += b"\x00"
+    encryptedData = AES.new(key, AES.MODE_CBC, iv).encrypt(data)
+    return encryptedData.hex()
+
+async def decrypt_fields(request: Request):
+    url = str(request.url)
+    try:
+        match = re.search(r'\?(.*)', url)
+        if match:
+            original_field = match.group(1)
+            filtered_field = re.sub(r'&_=\d+', '', original_field)
+            decrypted_fields = urllib.parse.parse_qs(decryptAES(filtered_field)[:-1])
+
+            return decrypted_fields, original_field
+        else:
+            return None, None
+    except:
+        return None, None