Untitled

from flask import *
from functools import wraps
app = Flask(__name__)
app.secret_key = "my precious"

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

@app.route('/welcome')
def welcome():
    return render_template('welcome.html')

@app.route('/logout')
def logout():
    session.pop('logged_in',None)
    return redirect (url_for('home'))

@app.route('/hello')
def hello():
    return render_template('hello.html')


@app.route('/log', methods=['GET','POST'])
def log():
    error = None
    if request.method == "POST":
        if request.form['username'] != 'admin' or  request.form['password'] != 'admin':
            error = "Invalid credentials"
        else:
            session['logged_in'] = True
            return redirect (url_for('hello'))
        return render_template('log.html', error=error)


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

{% extends "templates.html" %}
{% block content %}
    <h1>Login</h1>
    {% If error %}
        <p class=error> <strong> Error: </strong> {{ error }}
    {% endif %}
    <form action="" method="POST">
        <dl>
            <dt>Username:
            <dt><input type="text" name="username" value="{{
            request.form.username }}">
            <dt>Password:
            <dd><input type="password" name="passowrd">
        </dl>
        <p><input type="submit" value="Login">
    </form>
{% endblock %}

<html>
<head>
        <title>Flask tutorial (Part 1)</title>
</head>
    <header>
    <div class="navbar navbar-inverse">
    <div class="navbar-inner">
        <a class="brand" href="/">Real python (for the web!)</a>
        <ul>
            <li><a href="/welcome">Welcome</a></li>
            <li><a href="/log">login</a></li>
        </ul>
    </div>
    </div>
    </header>
<body>
    <div class="container">
        {% block content %}
        {% endblock %}
    </div>
</body>
</html>

{% extends "templates.html"%}
{% block content %}
    <div class="jumbo">
        <h2>Welcome to Flask</h2>
        <br/>
        <p>click <a href="/welcome">here</a> to go to welcome page</p>
    </div>
{% endblock %}

{% extends "templates.html" %}
{% block content %}
    <h2>Welcome! You are logged in.</h2>
{% endblock %}

{% extends "templates.html"%}
{% block content %}
    <h2>Sample</h2>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
{% endblock %}

@app.route('/log', methods=['GET','POST'])
def log():
    error = None
    if request.method == "POST":
        if request.form['username'] != 'admin' or  request.form['password'] != 'admin':
            error = "Invalid credentials"
        else:
            session['logged_in'] = True
            return redirect (url_for('hello'))
    return render_template('log.html', error=error)

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

@app.route('/welcome')
def welcome():
    if request.method == "POST":
        return render_template("welcome.html")