python - Can't get this session to work properly -
i'm trying set session in application, doesn't seems work properly. after login, session displays on devtools doesn't redirect /index suppose do.
here i've done:
app.py
from flask import flask, render_template, redirect, url_for, request, session, flash functools import wraps app = flask(__name__) app.secret_key = "gr3hu39ud3n89ud893e4" def login_required(f): @wraps(f) def wrap(*args, **kwargs): if 'logged_in' in session: return f(*args, **kwargs) else: flash('you need login first') return redirect(url_for('login')) return wrap @app.route("/") @login_required def home(): return render_template('index.html') @app.route('/welcome') def welcome(): return render_template('welcome.html') @app.route('/login', methods=('get', 'post')) def login(): error = none if request.method == 'post': if request.form['username'] != 'admin' or request.form['password'] != 'admin': error = 'invalid credentials. please try again' else: session['logged_in'] = true flash('you logged in!') return redirect(url_for('home')) return render_template('login.html', error=error) @app.route('/logout') @login_required def logout(): session.pop('logged_in', none) flash('you logged out!') return redirect(url_for('welcome')) if __name__ == "__main__": app.run(debug=true, host='0.0.0.0', port=5000) templates/welcome.html
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>document</title> <link rel="stylesheet" href="/static/css/bootstrap.css"> <link rel="stylesheet" href="/static/css/bootstrap.css.map"> </head> <body> <div class="container"> <h1>welcome flask</h1> <p>click <a href="/">here</a> go home</p> {% message in get_flashed_messages() %} {{ message }} {% endfor %} </div> </body> </html> templates/index.html
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>document</title> <link rel="stylesheet" href="/static/css/bootstrap.css"> <link rel="stylesheet" href="/static/css/bootstrap.css.map"> </head> <body> <div class="container"> <h1>welcome flask</h1> <p>click <a href="/logout">here</a> go logout</p> {% message in get_flashed_messages() %} {{ message }} {% endfor %} </div> </body> </html> templates/login.html
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>document</title> <link rel="stylesheet" href="/static/css/bootstrap.css"> <link rel="stylesheet" href="/static/css/bootstrap.css.map"> </head> <body> <div class="container"> <h1>please login</h1> <br> <form action=""> <input type="text" placeholder="username" name="username" value="{{ request.form.username }}"> <input type="password" placeholder="password" name="password" value="{{ request.form.password }}"> <input type="submit" class="btn btn-default" value="login"> </form> {% if error %} <p class="error"><strong>error</strong>{{error}}</p> {% endif %} </div> </body> </html>
the <form> in login script did not have method attribute. no method attribute, form uses get default.
try in templates/login.html:
... <form method="post" action=""> ... reference:
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