make verify the apk dirs

Veha0001 · Nov 28, 2024 · 13d85c6 · 13d85c6
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diff --git a/README.md b/README.md
@@ -2,20 +2,22 @@
 
 DemoAPk is a tool for modifying and editing the APK package name that has been decoded by [APKEditor](https://github.com/REAndroid/APKEditor) and includes a patcher for editing binary files.
 
+## Overview
+
+DemodAPK is a Python-based tool designed to modify decompiled APK files. It enables developers to:
+
+- Update Facebook App credentials (App ID, Client Token, Login Protocol Scheme).
+- Rename package names in the APK manifest and associated files.
+- Apply binary patches and remove metadata.
+
 ## Features
+
 - **Package Renaming**: Easily rename package names in APK files.
 - **Resource Modification**: Modify resources in APK files as needed.
+- **Facebook API Updates**: Automatically replaces Facebook App details in the appropriate XML files.
 - **Metadata Adjustment**: Update application metadata in the AndroidManifest.xml file.
 - **Configurable Settings**: Store and manage settings in a JSON configuration file.
-+ [x] Replace Facebook App API
-+ [x] Inject libil2cpp.so
-+ [x] Update package name
-
-### InComplete
-- [x] Update App Name
-- [x] Replace Google App API
-- [x] More Patch Ability?
-- [x] Clean code?
+- **For educational purposes**: You're learning how APK files work or exploring reverse engineering ethically.
 
 ## Requirements
 
@@ -37,119 +39,133 @@ DemoAPk is a tool for modifying and editing the APK package name that has been d
 ## Usage
 
 Run the script with the following command:
+
 ```bash
 python autogen.py --config <path_to_config.json> <apk_directory>
 ```
+
 ### Patcher
+
 ```bash
 python patcher.py <config_file>
 # default is config.json
 ```
+
 - Configuration of Patcher
+
 ```json
 {
-    "Patcher": {
-        "input_file": "apkdir/root/lib/arm64-v8a/libil2cpp.so",
-        "dump_file": "dump.cs",
-        "output_file": "libil2cpp_patched.so",
-        "patches": [
-            {
-                "method_name": "UnlockAll",
-                "hex_code": "20 00 80 D2 C0 03 5F D6"
-            },
-            {
-                "offset": "0x111111",
-                "hex_code": "1F 20 03 D5"
-            },
-            {
-                "wildcard": "AA DD F5 ?? ?? ?? 00 01",
-                "hex_code": "00 E0 AF D2 C0 03 5F D6"
-            }
-        ]
-    }
+  "Patcher": {
+    "input_file": "apkdir/root/lib/arm64-v8a/libil2cpp.so",
+    "dump_file": "dump.cs",
+    "output_file": "libil2cpp_patched.so",
+    "patches": [
+      {
+        "method_name": "UnlockAll",
+        "hex_code": "20 00 80 D2 C0 03 5F D6"
+      },
+      {
+        "offset": "0x111111",
+        "hex_code": "1F 20 03 D5"
+      },
+      {
+        "wildcard": "AA DD F5 ?? ?? ?? 00 01",
+        "hex_code": "00 E0 AF D2 C0 03 5F D6"
+      }
+    ]
+  }
 }
 ```
 
 ## Performance Notice
 
-The `patcher.py` file may work slowly when performing wildcard scans. If you want to run it faster, consider using the C++ version. 
+The `patcher.py` file may work slowly when performing wildcard scans. If you want to run it faster, consider using the C++ version.
 
 ### Building the C++ Version
 
 To build the C++ version, you will need to have `g++` or `gcc` installed, along with the `nlohmann-json` library. You can build it using the following command:
+
 ```bash
 g++ -o patcher patcher.cpp -O2
 ```
+
 For **Windows** using [MSYS2](https://www.msys2.org/) First Install some package:
+
 ```bash
 pacman -S mingw-w64-x86_64-gcc mingw-w64-x86_64-nlohmann-json gcc
 ```
+
 Then run the gcc command: `g++ patcher.cpp -o patcher.exe -O2`
+
 > [!NOTE]
 > Edit by method_name may work on some dump.cs file.
 > The dump.cs file is get from [Il2CppDumper](https://github.com/Perfare/Il2CppDumper).
 
 ## Arguments
-* --config: Path to the JSON configuration file (default: config.json).
 
-* <apk_directory>: Path to the APK directory that contains the files to be modified.
+- --config: Path to the JSON configuration file (default: config.json).
+
+- <apk_directory>: Path to the APK directory that contains the files to be modified.
 
 ## Example
+
 > Run with a custom config file.
+
 ```bash
 python autogen.py --config config.json /path/to/apk/directory
 ```
+
 > An Example of config.json
+
 ```json
 {
-    "facebook": {
-        "app_id": "1234567890",
-        "client_token": "aaabbbcccddd0001",
-        "login_protocol_scheme": "fb1234567890"
+  "facebook": {
+    "app_id": "1234567890",
+    "client_token": "aaabbbcccddd0001",
+    "login_protocol_scheme": "fb1234567890"
+  },
+  "package": {
+    "new_name": "com.app.master",
+    "new_path": "Lcom/app/master"
+  },
+  "files": [
+    {
+      "replace": {
+        "target": "root/lib/arm64-v8a/libil2cpp.so",
+        "source": "/path/to/external/bin.so",
+        "backup": true
+      }
     },
-    "package": {
-        "new_name": "com.app.master",
-        "new_path": "Lcom/app/master"
-    },
-    "files": [
-        {
-            "replace": {
-                "target": "root/lib/arm64-v8a/libil2cpp.so",
-                "source": "/path/to/external/bin.so",
-                "backup": true
-            }
-        },
-        {
-            "replace": {
-                "target": "resources/package_1/res/values/strings.xml",
-                "source": "./path/to/external/strings_new.xml"
-            }
-        }
-    ],
-    "metadata_to_remove": [
-        ""
-    ],
-    "Patcher": {
-        "input_file": "apkdir/root/lib/arm64-v8a/libil2cpp.so",
-        "dump_file": "dump.cs",
-        "output_file": "libil2cpp_patched.so",
-        "patches": [
-            {
-                "method_name": "UnlockAll",
-                "hex_code": "20 00 80 D2 C0 03 5F D6"
-            },
-            {
-                "offset": "0x111111",
-                "hex_code": "1F 20 03 D5"
-            },
-            {
-                "wildcard": "AA DD F5 ?? ?? ?? 00 01",
-                "hex_code": "00 E0 AF D2 C0 03 5F D6"
-            }
-        ]
+    {
+      "replace": {
+        "target": "resources/package_1/res/values/strings.xml",
+        "source": "./path/to/external/strings_new.xml"
+      }
     }
+  ],
+  "metadata_to_remove": [""],
+  "Patcher": {
+    "input_file": "apkdir/root/lib/arm64-v8a/libil2cpp.so",
+    "dump_file": "dump.cs",
+    "output_file": "libil2cpp_patched.so",
+    "patches": [
+      {
+        "method_name": "UnlockAll",
+        "hex_code": "20 00 80 D2 C0 03 5F D6"
+      },
+      {
+        "offset": "0x111111",
+        "hex_code": "1F 20 03 D5"
+      },
+      {
+        "wildcard": "AA DD F5 ?? ?? ?? 00 01",
+        "hex_code": "00 E0 AF D2 C0 03 5F D6"
+      }
+    ]
+  }
 }
 ```
+
 Follow the prompts to select the APK file and modify its contents according to your preferences.
 
 ## License

diff --git a/autogen.py b/autogen.py
@@ -521,9 +521,46 @@ def parse_arguments():
 
 
 def verify_apk_directory(apk_dir):
+    """
+    Verifies if the given directory is a valid decoded APK directory.
+
+    Args:
+        apk_dir (str): Path to the APK directory.
+
+    Returns:
+        str: Verified APK directory path.
+    """
     if not os.path.exists(apk_dir):
         msg.error(f"The directory {apk_dir} does not exist.")
         sys.exit(1)
+
+    # Check for required files and folders
+    required_files = ["AndroidManifest.xml"]
+    required_folders = ["resources", "root"]
+    optional_folders = ["dex", "smali"]
+
+    # Check for required files
+    for req_file in required_files:
+        if not os.path.isfile(os.path.join(apk_dir, req_file)):
+            msg.error(f"Missing required file '{req_file}' in {apk_dir}.")
+            sys.exit(1)
+
+    # Check for required folders
+    for req_folder in required_folders:
+        if not os.path.isdir(os.path.join(apk_dir, req_folder)):
+            msg.error(f"Missing required folder '{req_folder}' in {apk_dir}.")
+            sys.exit(1)
+
+    # Check for at least one optional folder
+    if not any(
+        os.path.isdir(os.path.join(apk_dir, folder)) for folder in optional_folders
+    ):
+        msg.error(
+            f"At least one of the following folders is required in {apk_dir}: {', '.join(optional_folders)}."
+        )
+        sys.exit(1)
+
+    msg.info(f"APK directory verified: {apk_dir}")
     return apk_dir