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Meewan
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README.md
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README.md
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# contact-form
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Formulaire de contacte pour le site de katzei
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# installation
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To install you need to:
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* install flask, jinja2 an sqlalchemy
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* clone the repo in the /site directory
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* copy the etc content in /etc
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* link /etc/contact-form/contact-form.service to /etc/systemd/system/contact-form.service
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By default it will serve on port 9090
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0
__init__.py
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0
__init__.py
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9
etc/contact-form/config.ini
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etc/contact-form/config.ini
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[app]
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path = /dyn/contact
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db_path = /tmp/contact-form.db
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# time to keep the captacha valid in seconds
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captcha_timout = 3600
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[email]
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reciever = email@example.com
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server = localhost
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etc/contact-form/contact-form.service
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etc/contact-form/contact-form.service
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[Unit]
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Description=Nextcloudregister a service to register in nextcloud
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After=local-fs.target
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Wants=network-online.target
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[Service]
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Environment=PYTHONPATH=/usr/lib/python3/dist-packages/:/sites/
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ExecStart=/usr/bin/uwsgi-core --ini /etc/contact-form/uwsgi.ini
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User=contactform
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Group=contactform
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[Install]
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WantedBy=multi-user.target
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etc/contact-form/uwsgi.ini
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etc/contact-form/uwsgi.ini
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[uwsgi]
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socket = :9090
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protocol = http
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wsgi-file = /sites/contact-form/webapp.py
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plugin = python3
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3
requirements.txt
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requirements.txt
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flask
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jinja2
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sqlalchemy
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58
templates/form.html
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templates/form.html
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<!doctype html>
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<html lang="fr">
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<head>
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<meta charset="utf-8">
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<link rel="stylesheet" href="/css/frombulma.css">
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<link rel="stylesheet" href="/css/styles.css">
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<style type="text/css">
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.form-line>.input, .form-line>.textarea{
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border-color: #aaaaaa;
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width:100%;
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margin-bottom: 1em;
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}
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.form-line>.textarea{
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min-height: 25em;
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}
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.form-error{
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width: 100%;
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border-radius: 4px;
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margin-bottom: 1em;
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}
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.form-alert{
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background-color: rgba(255, 0, 0, 0.2);
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}
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</style>
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</head>
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<body>
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<form method="post">
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<input type="hidden" name="token" value={{token}}>
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<div class="form-line field">
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<label class="label" for=email>Adresse de courriel</label>
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<div class="form-line control">
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<input class="input" id="email" type="email" name="email" value="{{email}}" required/>
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</div>
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</div>
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<div class="form-line field">
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<label class="label" for="message">Votre message</label>
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</div>
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<div class="form-line field">
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<textarea class="textarea" id="message" name="message" rows="20" minlength="100" maxlength="10000" required>{{message}}</textarea>
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</div>
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<div class="form-line field">
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<label class="label" for="captcha">Vérification d’humanité: combien font {{first_number}} {{op_text}} {{second_number}} ?</label>
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</div>
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<div class="form-line field">
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<input class="input {% if captcha_error %}form-alert{% endif %}" id="captcha" type="number" name="captcha" min="-10" max="100" required />
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</div>
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{% if captcha_error %}
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<div class="form-error">Le captcha est invalide veuillez réessayer</div>
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{% endif %}
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<div class="form-line field">
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<input class="button is-link" type="submit" value="Envoyer" />
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</div>
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</form>
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</body>
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</html>
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12
templates/success.html
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12
templates/success.html
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<!doctype html>
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<html lang="fr">
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<head>
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<meta charset="utf-8">
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<link rel="stylesheet" href="/css/frombulma.css">
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<link rel="stylesheet" href="/css/styles.css">
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</head>
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<body>
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Votre demande a bien été transmise. Nous vous recontacterons dès que possible.
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</body>
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</html>
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109
webapp.py
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webapp.py
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from configparser import ConfigParser
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from email.message import EmailMessage
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import random
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import operator
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from os.path import exists
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from secrets import token_urlsafe
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from smtplib import SMTP
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from time import time
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import flask
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import sqlalchemy
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import sqlalchemy.orm
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CONFIG_PATH = "/etc/contact-form/config.ini"
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OPERATORS = (
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('+', operator.add),
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('×', operator.mul),
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('-', operator.sub),
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)
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config = ConfigParser()
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config.read(CONFIG_PATH)
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app = flask.Flask(__name__)
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Base = sqlalchemy.orm.declarative_base()
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class Captcha(Base):
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__tablename__ = "captcha"
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token = sqlalchemy.Column(sqlalchemy.String(90), primary_key=True)
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answer = sqlalchemy.Column(sqlalchemy.String(3))
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expiration = sqlalchemy.Column(sqlalchemy.Integer())
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def get_session():
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db_path = config.get("app", "db_path", fallback="")
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engine = sqlalchemy.create_engine(f"sqlite:///{db_path}")
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if not exists(db_path):
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Base.metadata.create_all(engine)
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session_factory = sqlalchemy.orm.sessionmaker(engine)
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return session_factory()
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def clean_db(session):
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session.query(Captcha).filter(Captcha.expiration < int(time())).delete()
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def generate_captacha():
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session = get_session()
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clean_db(session)
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first_number = random.randrange(10)
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second_number = random.randrange(10)
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op_text, op_func = random.choice(OPERATORS)
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result = op_func(first_number, second_number)
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captcha = Captcha(
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token=token_urlsafe(67),
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answer=str(result),
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expiration=int(time()) + config.getint("app", "captcha_timout", fallback=3600),
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)
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session.add(captcha)
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session.commit()
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return {
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"first_number": first_number,
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"second_number": second_number,
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"op_text": op_text,
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"token": captcha.token,
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}
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def validate_captcha(token, value):
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result = False
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session = get_session()
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clean_db(session)
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captcha = session.query(Captcha).filter(Captcha.token == token).one_or_none()
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if captcha:
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result = value == captcha.answer
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session.query(Captcha).filter(Captcha.token == token).delete()
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session.commit()
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return result
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def send_email(sender, message):
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email = EmailMessage()
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email.set_content(message)
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email["From"] = sender
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email["To"] = config.get("email", "reciever")
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smtp = SMTP(config.get("email", "server"))
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smtp.send_message(email)
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smtp.quit()
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@app.route(config.get("app", "path"), methods=["GET"])
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def get_form(context=None):
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context = (context or {}) | generate_captacha()
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return flask.render_template("form.html", **context)
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@app.route(config.get("app", "path"), methods=["POST"])
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def validate_form():
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form = flask.request.form
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if not all(form.get(f, False) for f in ("email", "message", "captcha", "token")):
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return "Erreur", 400
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if not validate_captcha(form["token"], form["captcha"]):
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context = dict(**form)
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context["captcha_error"] = True
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context.pop("captcha", None)
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return get_form(context=context)
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send_email(sender=form["email"], message=form["message"])
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return flask.render_template("success.html")
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