# GNU MediaGoblin -- federated, autonomous media hosting # Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS. # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see . import uuid import datetime import forms as auth_forms from mediagoblin.tools.response import render_to_response, redirect, render_404 from mediagoblin.db.models import User from mediagoblin.tools.translate import pass_to_ugettext as _ from mediagoblin import messages from mediagoblin.auth.views import email_debug_message from mediagoblin.auth.lib import send_fp_verification_email from mediagoblin.auth import lib as auth_lib def forgot_password(request): """ Forgot password view Sends an email with an url to renew forgotten password. Use GET querystring parameter 'username' to pre-populate the input field """ fp_form = auth_forms.ForgotPassForm(request.form, username=request.args.get('username')) if not (request.method == 'POST' and fp_form.validate()): # Either GET request, or invalid form submitted. Display the template return render_to_response(request, 'mediagoblin/plugins/basic_auth/forgot_password.html', {'fp_form': fp_form}) # If we are here: method == POST and form is valid. username casing # has been sanitized. Store if a user was found by email. We should # not reveal if the operation was successful then as we don't want to # leak if an email address exists in the system. found_by_email = '@' in fp_form.username.data if found_by_email: user = User.query.filter_by( email=fp_form.username.data).first() # Don't reveal success in case the lookup happened by email address. success_message = _("If that email address (case sensitive!) is " "registered an email has been sent with " "instructions on how to change your password.") else: # found by username user = User.query.filter_by( username=fp_form.username.data).first() if user is None: messages.add_message(request, messages.WARNING, _("Couldn't find someone with that username.")) return redirect(request, 'mediagoblin.auth.forgot_password') success_message = _("An email has been sent with instructions " "on how to change your password.") if user and not(user.email_verified and user.status == 'active'): # Don't send reminder because user is inactive or has no verified email messages.add_message(request, messages.WARNING, _("Could not send password recovery email as your username is in" "active or your account's email address has not been verified.")) return redirect(request, 'mediagoblin.user_pages.user_home', user=user.username) # SUCCESS. Send reminder and return to login page if user: user.fp_verification_key = unicode(uuid.uuid4()) user.fp_token_expire = datetime.datetime.now() + \ datetime.timedelta(days=10) user.save() email_debug_message(request) send_fp_verification_email(user, request) messages.add_message(request, messages.INFO, success_message) return redirect(request, 'mediagoblin.auth.login') def verify_forgot_password(request): """ Check the forgot-password verification and possibly let the user change their password because of it. """ # get form data variables, and specifically check for presence of token formdata = _process_for_token(request) if not formdata['has_userid_and_token']: return render_404(request) formdata_token = formdata['vars']['token'] formdata_userid = formdata['vars']['userid'] formdata_vars = formdata['vars'] # check if it's a valid user id user = User.query.filter_by(id=formdata_userid).first() if not user: return render_404(request) # check if we have a real user and correct token if ((user and user.fp_verification_key and user.fp_verification_key == unicode(formdata_token) and datetime.datetime.now() < user.fp_token_expire and user.email_verified and user.status == 'active')): cp_form = auth_forms.ChangePassForm(formdata_vars) if request.method == 'POST' and cp_form.validate(): user.pw_hash = auth_lib.bcrypt_gen_password_hash( cp_form.password.data) user.fp_verification_key = None user.fp_token_expire = None user.save() messages.add_message( request, messages.INFO, _("You can now log in using your new password.")) return redirect(request, 'mediagoblin.auth.login') else: return render_to_response( request, 'mediagoblin/plugins/basic_auth/change_fp.html', {'cp_form': cp_form}) # in case there is a valid id but no user with that id in the db # or the token expired else: return render_404(request) def _process_for_token(request): """ Checks for tokens in formdata without prior knowledge of request method For now, returns whether the userid and token formdata variables exist, and the formdata variables in a hash. Perhaps an object is warranted? """ # retrieve the formdata variables if request.method == 'GET': formdata_vars = request.GET else: formdata_vars = request.form formdata = { 'vars': formdata_vars, 'has_userid_and_token': 'userid' in formdata_vars and 'token' in formdata_vars} return formdata