Python Flask WTForms - appending files based on user input
Question
I'm having some difficulties finding information about this:
I'm using FLASK and Python for this. I would like the user to input some text in an HTML form, and upon submission, the text to be sent to python and create/append a file. (WPA_SUPPLICANT) to ultimately connect the user to the wireless network.
Please help me out with the flask code for this action. this is the closest thing I could find! I can't figure out what the template for this code should look like.
from flask import Flask, render_template, request, redirect, url_for
import datetime
app = Flask(__name__)
@app.route("/")
def hello():
now = datetime.datetime.now()
timeString = now.strftime("%Y-%m-%d %H:%M")
f=open('/boot/wpa_supplicant.conf','r')
fp=f.read()
templateData = {
'title' : 'HELLO!',
'time': timeString,
'WPA': fp
}
f.close()
return render_template('main.html', **templateData)
@app.route('/data', methods=['POST'])
def handle_data():
newWPA=request.form['indexMain']
print newWPA
f=open('/boot/wpa_supplicant.conf','w')
f.write(newWPA)
f.close
return redirect(url_for('hello'))
if __name__ == "__main__":
app.run(host='0.0.0.0', port=80, debug=True)
Please advise! thank you.
1 answers
solution1
0 ACCPTED 2015-05-19 18:36:23
Handling simple forms is prominently featured in the Flask docs and quickstart . Use request.form to access form data. Using WTForms is even simpler, and is clearly explained in the [docs] as well.
project/app.py :
from flask import Flask, request, redirect, url_for
from flask_wtf import Form
from wtforms.fields import PasswordField
from wtforms.validators import InputRequired
app = Flask(__name__)
class WifiForm(Form):
password = PasswordField(validators=[InputRequired()])
@app.route('/wifi-password', methods=['GET', 'POST'])
def wifi_password():
form = WifiForm()
if form.validate_on_submit():
password = form.password.data
with open('/boot/wpa_supplicant.conf', 'w') as f:
f.write('valid conf file with password')
return redirect(url_for('index'))
return render_template('wifi_password.html', form=form)
project/templates/wifi_password.html :
<html>
<head>
<title>WiFi Password</title>
</head>
<body>
<form method="POST">
{{ form.hidden_tag() }}
{{ form.password }}
<input type="submit"/>
</form>
</body>
</html>
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.