Added Password Strength checker

main.py

@@ -80,19 +80,24 @@ def main():
         elif choice == '4' and validate_key_loaded(pm):
             path = input("Enter password file path: ").strip()
             pm.load_password_file(path)
+
         elif choice == '5' and validate_key_loaded(pm):
+            # Password conditions
+            print("Password must be at least 8 characters long.")
+            print("Password must contain at least one lowercase letter.")
+            print("Password must contain at least one uppercase letter.")
+            print("Password must contain at least one digit.")
+            print("Password must contain at least one special character.")
             site = input("Enter site: ").strip()
             password = input("Enter password: ").strip()
             if pm.validate_strength(password):
                 print("added successfully")
             else:
                 print("WARNING: This password is weak, It is recommended to set a stronger password")
-                print("- Password should be more than 8 characters long")
-                print("- Password should have alphanumeric characters, capital letters and special characters")
+                # Printing Exact password weakness is already handled in self.validate_strength() function
             pm.add_password(site, password)
 
         elif choice == '6' and validate_key_loaded(pm):
-
             site = input("Enter site: ").strip()
             res = pm.get_password(site)
             print(f"Password for {site}: {res}")
@@ -104,6 +109,7 @@ def main():
             print("Saved Sites:")
             for site in pm.password_dict:
                 print(site)
+
         elif choice == 'q':
             done = True
             print("Goodbye!")

manager.py

@@ -1,6 +1,8 @@
 from cryptography.fernet import Fernet
 
 
+
+
 class PasswordManager:
 
     def __init__(self):
@@ -35,6 +37,7 @@ def load_password_file(self, path):
                 site, encrypted = line.split(":")
                 self.password_dict[site] = Fernet(self.key).decrypt(encrypted.encode()).decode()
 
+
     def add_password(self, site, password):
         if site in self.password_dict:  
             print(f"Warning: A password for the site '{site}' already exists.")  
@@ -45,6 +48,7 @@ def add_password(self, site, password):
                 encrypted = Fernet(self.key).encrypt(password.encode()).decode()
                 f.write(f"{site}:{encrypted}\n")
 
+
     def get_password(self, site):
         return self.password_dict.get(site, "Password not found.")
     def validate_strength(self, password):
@@ -57,8 +61,10 @@ def validate_strength(self, password):
         has_numeric_characters = False
         has_capital_letters = False
         has_small_letters = False
-        if len(password) > 8: 
-            has_good_length = True
+
+        # Checking all the conditions
+        if len(password) >= 8: 
+            has_good_length = True     
         for chr in password:
             if chr in SpecialChar:
                 has_special_char = True
@@ -68,6 +74,22 @@ def validate_strength(self, password):
                 has_small_letters = True
             if chr.isdigit():
                 has_numeric_characters = True
+        # preparing the log message
+        error_message = ""
+        if not has_good_length:
+            error_message += "Password must be at least 8 characters long.\n"
+        if not has_special_char:
+            error_message += "Password must contain at least one special character.\n"
+        if not has_capital_letters:
+            error_message += "Password must contain at least one uppercase letter.\n"
+        if not has_small_letters:
+            error_message += "Password must contain at least one lowercase letter.\n"
+        if not has_numeric_characters:
+            error_message += "Password must contain at least one digit.\n"
+
+        if error_message != "":
+            print(error_message)
+
         return has_numeric_characters and has_good_length and\
               has_capital_letters and has_special_char and has_small_letters