flask-secrets

denied.html

{% extends "bootstrap/base.html" %}

{% block title %}Access Denied{% endblock %}

{% block content %}
	<div class="container">
		<h1>Access Denied </h1>
		<iframe src="https://giphy.com/embed/1xeVd1vr43nHO" width="480" height="271" frameBorder="0" class="giphy-embed" allowFullScreen></iframe>
		<p><a href="https://giphy.com/gifs/cheezburger-funny-dog-fails-1xeVd1vr43nHO">via GIPHY</a></p>
	</div>
{% endblock %}

index.html

{% extends "bootstrap/base.html" %}

{% block title %}Secrets{% endblock %}

{% block content %}
   <div class="jumbotron">
	   <div class="container">
		   <h1>Welcome</h1>
		   <p>Are you ready to discover my secret?</p>
		   <button class="btn btn-primary btn-lg" onclick="window.location.href='/login'">Login</button>
	   </div>
   </div>
{% endblock %}

login.html

{% extends "bootstrap/base.html" %}
{% import "bootstrap/wtf.html" as wtf %}

{% block title %}Login{% endblock %}

{% block content %}
   <div class="container">
	   <h1>Login</h1>

	   {{ wtf.quick_form(form, novalidate=True) }}

   </div>
{% endblock %}

main.py

from flask import Flask, render_template
from flask_bootstrap import Bootstrap
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField
from wtforms.validators import DataRequired, Email, Length


class LoginForm(FlaskForm):
    email = StringField(label='Email',
                        validators=[DataRequired(),
                                    Email(message="Invalid email address.")])
    password = PasswordField(label='Password',
                             validators=[DataRequired(),
                                         Length(min=8, message="Field must be at least 8 characters long.")])
    submit = SubmitField(label='Log In')


app = Flask(__name__)
Bootstrap(app)
app.secret_key = "any-string-you-want-just-keep-it-secret"


@app.route("/")
def home():
    return render_template('index.html')


@app.route('/login', methods=["GET", "POST"])
def login():
    login_form = LoginForm()
    if login_form.validate_on_submit():
        if login_form.email.data == "admin@email.com" and login_form.password.data == "12345678":
            return render_template('success.html')
        else:
            return render_template('denied.html')
    return render_template('login.html', form=login_form)


if __name__ == '__main__':
    app.run(debug=True)

requirements.txt

Flask==2.0.3
Jinja2==3.1.1

success.html

{% extends "bootstrap/base.html" %}

{% block title %}Success{% endblock %}

{% block content %}
   <div class="container">
      <h1>Top Secret </h1>
      <iframe src="https://giphy.com/embed/Ju7l5y9osyymQ" width="480" height="360" frameBorder="0" class="giphy-embed" allowFullScreen></iframe>
      <p><a href="https://giphy.com/gifs/rick-astley-Ju7l5y9osyymQ">via GIPHY</a></p>
   </div>
{% endblock %}