MachinePainting
fb9d50eed2
- Add decrypt/encrypt scripts for macOS, Windows, and Linux - Add cross-platform Python script (decrypt_folder.py) - Update README with setup instructions for all platforms - Scripts support all file types: png, jpg, jpeg, webp, gif, mp4, avi, mov
155 lines
4.6 KiB
Python
155 lines
4.6 KiB
Python
#!/usr/bin/env python3
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"""
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DropSend Decryption Script for Windows
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Decrypts .enc files using a key from environment variable or manual input
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"""
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import os
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import sys
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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_encryption_key():
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"""Get encryption key from environment variable or user input."""
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# Try environment variable first
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key = os.environ.get('DROPSEND_ENCRYPTION_KEY')
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if key:
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print("Using key from DROPSEND_ENCRYPTION_KEY environment variable.")
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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 in environment.")
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print("")
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print("To set up automatic key retrieval:")
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print(" 1. Press Win + R, type 'sysdm.cpl', press Enter")
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print(" 2. Go to Advanced tab > Environment Variables")
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print(" 3. Under User variables, click New")
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print(" 4. Variable name: DROPSEND_ENCRYPTION_KEY")
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print(" 5. Variable value: [your encryption key]")
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print(" 6. Click OK and restart any open terminals")
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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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print("=== DropSend File Decryption (Windows) ===")
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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
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folder = folder.strip('"\'')
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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 get original filename
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# The original extension is preserved (e.g., image.png.enc -> image.png)
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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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