223 lines
7.1 KiB
Python
223 lines
7.1 KiB
Python
#!/usr/bin/env python3
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"""
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DriveSend Cross-Platform Decryption Script
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Works on macOS, Windows, and Linux
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============================================================
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LOCAL USE ONLY - Run this on your local machine to decrypt
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.enc files downloaded/synced from Google Drive. Do not run on
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cloud instances (RunPod, etc.) - decryption happens locally
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where you want to view your files.
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============================================================
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Key retrieval methods:
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- DRIVESEND_ENCRYPTION_KEY environment variable (all platforms)
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- macOS Keychain
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- Linux Secret Service (GNOME Keyring / KWallet)
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- Manual input
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"""
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import os
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import sys
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import platform
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import shutil
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try:
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from cryptography.fernet import Fernet
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except ImportError:
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print("Error: cryptography library not installed.")
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print("Run: pip install cryptography")
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sys.exit(1)
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def get_key_from_macos_keychain():
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"""Try to retrieve the key from macOS Keychain."""
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try:
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import subprocess
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result = subprocess.run(
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['security', 'find-generic-password', '-s', 'DriveSend_Encryption_Key', '-a', 'DriveSend', '-w'],
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capture_output=True, text=True
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)
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if result.returncode == 0 and result.stdout.strip():
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return result.stdout.strip()
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except Exception:
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pass
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return None
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def get_key_from_linux_secret_service():
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"""Try to retrieve the key from Linux Secret Service (GNOME Keyring/KWallet)."""
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try:
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import subprocess
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result = subprocess.run(
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['secret-tool', 'lookup', 'service', 'DriveSend', 'username', 'DriveSend'],
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capture_output=True, text=True
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)
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if result.returncode == 0 and result.stdout.strip():
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return result.stdout.strip()
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except Exception:
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pass
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return None
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def get_encryption_key():
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"""Get encryption key from environment, platform credential store, or user input."""
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system = platform.system()
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# Try environment variable first (works on all platforms)
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# Check both DRIVESEND and comfyui variants
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key = os.environ.get('DRIVESEND_ENCRYPTION_KEY') or os.environ.get('comfyui_encryption_key')
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if key:
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print("Using key from environment variable.")
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return key
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# Try platform-specific credential storage
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if system == 'Darwin': # macOS
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key = get_key_from_macos_keychain()
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if key:
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print("Using key from macOS Keychain.")
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return key
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elif system == 'Linux':
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key = get_key_from_linux_secret_service()
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if key:
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print("Using key from Secret Service (GNOME Keyring/KWallet).")
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return key
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# Prompt user
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print("")
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print("Encryption key not found automatically.")
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print("")
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print("To set up automatic key retrieval:")
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if system == 'Darwin':
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print(" - Store in Keychain: Keychain Access > File > New Password Item")
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print(" Item Name: DriveSend_Encryption_Key, Account: DriveSend")
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elif system == 'Windows':
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print(" - Set environment variable DRIVESEND_ENCRYPTION_KEY")
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print(" (Win+R > sysdm.cpl > Advanced > Environment Variables)")
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elif system == 'Linux':
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print(" - Set environment variable: export DRIVESEND_ENCRYPTION_KEY=\"your_key\"")
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print(" - Or use secret-tool: echo -n \"key\" | secret-tool store --label=\"DriveSend\" service DriveSend username DriveSend")
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print("")
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key = input("Enter your encryption key: ").strip()
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if not key:
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print("Error: No key provided.")
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sys.exit(1)
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return key
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def decrypt_file(encrypted_path, output_path, fernet):
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"""Decrypt a single file."""
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try:
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with open(encrypted_path, 'rb') as enc_file:
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encrypted_data = enc_file.read()
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decrypted_data = fernet.decrypt(encrypted_data)
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with open(output_path, 'wb') as dec_file:
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dec_file.write(decrypted_data)
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return True
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except Exception as e:
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print(f" X Error decrypting {os.path.basename(encrypted_path)}: {e}")
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return False
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def main():
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system = platform.system()
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print(f"=== DriveSend File Decryption ({system}) ===")
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print("")
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print("Decrypts .enc files in a folder to restore original images/videos.")
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print("")
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# Get folder path
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folder = input("Enter the folder path containing .enc files: ").strip()
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# Remove surrounding quotes if present (common when drag-dropping on Windows)
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folder = folder.strip('"\'')
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# Handle escaped spaces from drag-drop on macOS
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folder = folder.replace('\\ ', ' ')
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if not folder or not os.path.isdir(folder):
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print(f"Error: '{folder}' is not a valid directory.")
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sys.exit(1)
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print(f"Processing folder: {folder}")
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print("")
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# Recursive option
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recursive_input = input("Decrypt files recursively (including subfolders)? (Y/N): ").strip().upper()
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recursive = recursive_input == 'Y'
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# Get encryption key
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print("")
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key = get_encryption_key()
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try:
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fernet = Fernet(key.encode())
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except Exception as e:
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print(f"Error: Invalid encryption key format: {e}")
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sys.exit(1)
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print("")
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print("Scanning for .enc files...")
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# Find all .enc files
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enc_files = []
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if recursive:
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for root, _, files in os.walk(folder):
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for file in files:
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if file.endswith('.enc'):
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enc_files.append(os.path.join(root, file))
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else:
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for file in os.listdir(folder):
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if file.endswith('.enc'):
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enc_files.append(os.path.join(folder, file))
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if not enc_files:
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print("No .enc files found in the specified location.")
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sys.exit(0)
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print(f"Found {len(enc_files)} .enc file(s) to decrypt.")
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print("")
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success_count = 0
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error_count = 0
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for enc_path in enc_files:
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# Remove .enc extension to restore original filename
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# e.g., image.png.enc -> image.png, video.mp4.enc -> video.mp4
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out_path = enc_path[:-4] # Remove .enc
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if decrypt_file(enc_path, out_path, fernet):
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print(f" + Decrypted: {os.path.basename(out_path)}")
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success_count += 1
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else:
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error_count += 1
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print("")
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print(f"Decryption complete: {success_count} successful, {error_count} failed")
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print("")
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# Offer to move .enc files
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move_input = input("Move all .enc files to a separate folder? (Y/N): ").strip().upper()
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if move_input == 'Y':
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enc_folder = os.path.join(folder, "_encrypted_originals")
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os.makedirs(enc_folder, exist_ok=True)
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moved_count = 0
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for enc_path in enc_files:
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if os.path.exists(enc_path):
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dest = os.path.join(enc_folder, os.path.basename(enc_path))
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shutil.move(enc_path, dest)
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moved_count += 1
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print(f"Moved {moved_count} .enc file(s) to: {enc_folder}")
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else:
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print("Leaving .enc files in place.")
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print("")
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print("Done!")
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if __name__ == "__main__":
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main()
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