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| 1 | +import json, hashlib, getpass, os, pyperclip, sys |
| 2 | +from cryptography.fernet import Fernet |
| 3 | + |
| 4 | + |
| 5 | +# Function for Hashing the Master Password. |
| 6 | +def hash_password(password): |
| 7 | + sha256 = hashlib.sha256() |
| 8 | + sha256.update(password.encode()) |
| 9 | + return sha256.hexdigest() |
| 10 | + |
| 11 | + |
| 12 | +# Generate a secret key. This should be done only once as you'll see. |
| 13 | +def generate_key(): |
| 14 | + return Fernet.generate_key() |
| 15 | + |
| 16 | + |
| 17 | +# Initialize Fernet cipher with the provided key. |
| 18 | +def initialize_cipher(key): |
| 19 | + return Fernet(key) |
| 20 | + |
| 21 | + |
| 22 | +# Function to encrypt a password. |
| 23 | +def encrypt_password(cipher, password): |
| 24 | + return cipher.encrypt(password.encode()).decode() |
| 25 | + |
| 26 | + |
| 27 | +# Function to decrypt a password. |
| 28 | +def decrypt_password(cipher, encrypted_password): |
| 29 | + return cipher.decrypt(encrypted_password.encode()).decode() |
| 30 | + |
| 31 | + |
| 32 | +# Function to register you. |
| 33 | +def register(username, master_password): |
| 34 | + # Encrypt the master password before storing it |
| 35 | + hashed_master_password = hash_password(master_password) |
| 36 | + user_data = {'username': username, 'master_password': hashed_master_password} |
| 37 | + file_name = 'user_data.json' |
| 38 | + |
| 39 | + if os.path.exists(file_name) and os.path.getsize(file_name) == 0: |
| 40 | + with open(file_name, 'w') as file: |
| 41 | + json.dump(user_data, file) |
| 42 | + print("\n[+] Registration complete!!\n") |
| 43 | + else: |
| 44 | + with open(file_name, 'x') as file: |
| 45 | + json.dump(user_data, file) |
| 46 | + print("\n[+] Registration complete!!\n") |
| 47 | + |
| 48 | + |
| 49 | +# Function to log you in. |
| 50 | +def login(username, entered_password): |
| 51 | + try: |
| 52 | + with open('user_data.json', 'r') as file: |
| 53 | + user_data = json.load(file) |
| 54 | + |
| 55 | + stored_password_hash = user_data.get('master_password') |
| 56 | + entered_password_hash = hash_password(entered_password) |
| 57 | + |
| 58 | + if entered_password_hash == stored_password_hash and username == user_data.get('username'): |
| 59 | + print("\n[+] Login Successful..\n") |
| 60 | + else: |
| 61 | + print("\n[-] Invalid Login credentials. Please use the credentials you used to register.\n") |
| 62 | + sys.exit() |
| 63 | + |
| 64 | + except Exception: |
| 65 | + print("\n[-] You have not registered. Please do that.\n") |
| 66 | + sys.exit() |
| 67 | + |
| 68 | + |
| 69 | +# Function to view saved websites. |
| 70 | +def view_websites(): |
| 71 | + try: |
| 72 | + with open('passwords.json', 'r') as data: |
| 73 | + view = json.load(data) |
| 74 | + print("\nWebsites you saved...\n") |
| 75 | + for x in view: |
| 76 | + print(x['website']) |
| 77 | + print('\n') |
| 78 | + except FileNotFoundError: |
| 79 | + print("\n[-] You have not saved any passwords!\n") |
| 80 | + |
| 81 | + |
| 82 | +# Load or generate the encryption key. |
| 83 | +key_filename = 'encryption_key.key' |
| 84 | +if os.path.exists(key_filename): |
| 85 | + with open(key_filename, 'rb') as key_file: |
| 86 | + key = key_file.read() |
| 87 | +else: |
| 88 | + key = generate_key() |
| 89 | + with open(key_filename, 'wb') as key_file: |
| 90 | + key_file.write(key) |
| 91 | + |
| 92 | +cipher = initialize_cipher(key) |
| 93 | + |
| 94 | + |
| 95 | +# Function to add (save password). |
| 96 | +def add_password(website, password): |
| 97 | + # Check if passwords.json exists |
| 98 | + if not os.path.exists('passwords.json'): |
| 99 | + # If passwords.json doesn't exist, initialize it with an empty list |
| 100 | + data = [] |
| 101 | + else: |
| 102 | + # Load existing data from passwords.json |
| 103 | + try: |
| 104 | + with open('passwords.json', 'r') as file: |
| 105 | + data = json.load(file) |
| 106 | + except json.JSONDecodeError: |
| 107 | + # Handle the case where passwords.json is empty or invalid JSON. |
| 108 | + data = [] |
| 109 | + |
| 110 | + # Encrypt the password |
| 111 | + encrypted_password = encrypt_password(cipher, password) |
| 112 | + |
| 113 | + # Create a dictionary to store the website and password |
| 114 | + password_entry = {'website': website, 'password': encrypted_password} |
| 115 | + data.append(password_entry) |
| 116 | + |
| 117 | + # Save the updated list back to passwords.json |
| 118 | + with open('passwords.json', 'w') as file: |
| 119 | + json.dump(data, file, indent=4) |
| 120 | + |
| 121 | + |
| 122 | +# Function to retrieve a saved password. |
| 123 | +def get_password(website): |
| 124 | + # Check if passwords.json exists |
| 125 | + if not os.path.exists('passwords.json'): |
| 126 | + return None |
| 127 | + |
| 128 | + # Load existing data from passwords.json |
| 129 | + try: |
| 130 | + with open('passwords.json', 'r') as file: |
| 131 | + data = json.load(file) |
| 132 | + except json.JSONDecodeError: |
| 133 | + data = [] |
| 134 | + # Loop through all the websites and check if the requested website exists. |
| 135 | + for entry in data: |
| 136 | + if entry['website'] == website: |
| 137 | + # Decrypt and return the password |
| 138 | + decrypted_password = decrypt_password(cipher, entry['password']) |
| 139 | + return decrypted_password |
| 140 | + |
| 141 | + return None |
| 142 | + |
| 143 | + |
| 144 | +# Infinite loop to keep the program running until the user chooses to quit. |
| 145 | +while True: |
| 146 | + print("1. Register") |
| 147 | + print("2. Login") |
| 148 | + print("3. Quit") |
| 149 | + choice = input("Enter your choice: ") |
| 150 | + |
| 151 | + if choice == '1': # If a user wants to register |
| 152 | + file = 'user_data.json' |
| 153 | + if os.path.exists(file) and os.path.getsize(file) != 0: |
| 154 | + print("\n[-] Master user already exists!!") |
| 155 | + sys.exit() |
| 156 | + else: |
| 157 | + username = input("Enter your username: ") |
| 158 | + master_password = getpass.getpass("Enter your master password: ") |
| 159 | + register(username, master_password) |
| 160 | + |
| 161 | + elif choice == '2': # If a User wants to log in |
| 162 | + file = 'user_data.json' |
| 163 | + if os.path.exists(file): |
| 164 | + username = input("Enter your username: ") |
| 165 | + master_password = getpass.getpass("Enter your master password: ") |
| 166 | + login(username, master_password) |
| 167 | + else: |
| 168 | + print("\n[-] You have not registered. Please do that.\n") |
| 169 | + sys.exit() |
| 170 | + # Various options after a successful Login. |
| 171 | + while True: |
| 172 | + print("1. Add Password") |
| 173 | + print("2. Get Password") |
| 174 | + print("3. View Saved websites") |
| 175 | + print("4. Quit") |
| 176 | + |
| 177 | + password_choice = input("Enter your choice: ") |
| 178 | + if password_choice == '1': # If a user wants to add a password |
| 179 | + website = input("Enter website: ") |
| 180 | + password = getpass.getpass("Enter password: ") |
| 181 | + |
| 182 | + # Encrypt and add the password |
| 183 | + add_password(website, password) |
| 184 | + print("\n[+] Password added!\n") |
| 185 | + |
| 186 | + elif password_choice == '2': # If a User wants to retrieve a password |
| 187 | + website = input("Enter website: ") |
| 188 | + decrypted_password = get_password(website) |
| 189 | + if website and decrypted_password: |
| 190 | + # Copy password to clipboard for convenience |
| 191 | + pyperclip.copy(decrypted_password) |
| 192 | + print(f"\n[+] Password for {website}: {decrypted_password}\n[+] Password copied to clipboard.\n") |
| 193 | + else: |
| 194 | + print("\n[-] Password not found! Did you save the password?" |
| 195 | + "\n[-] Use option 3 to see the websites you saved.\n") |
| 196 | + |
| 197 | + elif password_choice == '3': # If a user wants to view saved websites |
| 198 | + view_websites() |
| 199 | + |
| 200 | + elif password_choice == '4': # If a user wants to quit the password manager |
| 201 | + break |
| 202 | + |
| 203 | + elif choice == '3': # If a user wants to quit the program |
| 204 | + break |
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