initial login logic

forms.py

@@ -0,0 +1,48 @@
+import re
+from flask_wtf import FlaskForm
+from wtforms import StringField, PasswordField, HiddenField
+from wtforms.validators import (
+    DataRequired, Email, EqualTo, Length, ValidationError
+)
+
+
+def strong_password(form, field):
+    """Validate password meets strong requirements."""
+    password = field.data
+    errors = []
+
+    if len(password) < 8:
+        errors.append("at least 8 characters")
+    if not re.search(r'[A-Z]', password):
+        errors.append("an uppercase letter")
+    if not re.search(r'[a-z]', password):
+        errors.append("a lowercase letter")
+    if not re.search(r'\d', password):
+        errors.append("a number")
+    if not re.search(r'[!@#$%^&*(),.?":{}|<>]', password):
+        errors.append("a special character (!@#$%^&*(),.?\":{}|<>)")
+
+    if errors:
+        raise ValidationError(f"Password must contain {', '.join(errors)}.")
+
+
+class SignupForm(FlaskForm):
+    email = StringField('Email', validators=[
+        DataRequired(message="Email is required."),
+        Email(message="Please enter a valid email address."),
+        Length(max=255, message="Email must be less than 255 characters.")
+    ])
+
+    password = PasswordField('Password', validators=[
+        DataRequired(message="Password is required."),
+        strong_password
+    ])
+
+    confirm_password = PasswordField('Confirm Password', validators=[
+        DataRequired(message="Please confirm your password."),
+        EqualTo('password', message="Passwords must match.")
+    ])
+
+    altcha = HiddenField('altcha', validators=[
+        DataRequired(message="Please complete the CAPTCHA challenge.")
+    ])