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# -*- coding: utf-8 -*-
import importlib
from functools import wraps
from flask import current_app, flash, g, redirect, render_template, request, session
from flask import url_for as flask_url_for
from flask.ext.login import current_user
from werkzeug.exceptions import Forbidden
from wtforms.validators import Regexp, ValidationError
from .confirmation import Confirmation
# using http://flask.pocoo.org/docs/patterns/viewdecorators/
def templated(template=None):
def templated_(f):
@wraps(f)
def templated__(*args, **kwargs):
template_name = template
if template_name is None:
template_name = request.endpoint \
.replace('.', '/') + '.html'
ctx = f(*args, **kwargs)
if ctx is None:
ctx = {}
elif not isinstance(ctx, dict):
return ctx
return render_template(template_name, **ctx)
return templated__
return templated_
def ensure_utf8(s):
if isinstance(s, unicode):
s = s.encode('utf8')
return s
def send_register_confirmation_mail(username, mail):
confirm_token = Confirmation('register').dumps((username, mail))
confirm_link = url_for('default.register_complete', token=confirm_token, _external=True)
body = render_template('mail/register.txt', username=username,
mail=mail, link=confirm_link)
current_app.mail_backend.send(
mail, u'E-Mail-Adresse bestätigen', body,
sender=current_app.config.get('MAIL_CONFIRM_SENDER'))
class NotRegexp(Regexp):
"""
Like wtforms.validators.Regexp, but rejects data that DOES match the regex.
"""
def __call__(self, form, field):
if self.regex.match(field.data or u''):
if self.message is None:
self.message = field.gettext(u'Invalid input.')
raise ValidationError(self.message)
def url_for(endpoint, **values):
"""Wrap `flask.url_for` so that it always returns https links"""
#XXX: Drop this in favor of config.PREFERRED_URL_SCHEME when we require Flask 0.9
u = flask_url_for(endpoint, **values)
if '_external' in values and u.startswith('http://') \
and current_app.config['PREFERRED_URL_SCHEME'] == 'https':
return 'https://' + u[7:]
else:
return u
def get_backend(path, app):
module = path.rsplit(".", 1).pop()
class_name = '%sBackend' % module.title()
backend_class = getattr(importlib.import_module(path), class_name)
return backend_class(app)
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