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programming/python

[Flask] login form 구현

ba0bab 2018. 8. 25. 00:00



./templates/login_form.html


<html>

<head>

<title>login page</title>

</head>

<body>

<form method="post" action="/login">

<h2> try login. </h2>

<input type = "text" name ="id" placeholder="Username">

<input type = "password" name="pw" placeholder="password">

<button type="submit">login</button>

</form>

</body>

</html>


./app.py


from flask import *


app = Flask(__name__)


@app.route('/')

def login_form():

    return render_template('login_form.html')


@app.route('/login', methods = ['POST'])

def login():

    if request.method == 'POST':

        if(request.form['id'] == 'admin' and request.form['pw'] == 'admin123'):

            session['logged'] = True

            session['user'] = request.form['id']

            return 'Hi, ' + request.form['id']

        else:

            return """<script>alert("wrong!");location.href='/';</script>"""

    else:

        return """<script>alert("not allowd!");location.href='/';</script>"""

app.secret_key = 'sample_secret'


if __name__ == '__main__':

    app.run()

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