359 lines
12 KiB
Python

# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011 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 <http://www.gnu.org/licenses/>.
import uuid
import datetime
from webob import exc
from mediagoblin import messages
from mediagoblin import mg_globals
from mediagoblin.tools.response import render_to_response, redirect, render_404
from mediagoblin.tools.translate import pass_to_ugettext as _
from mediagoblin.db.util import ObjectId, InvalidId
from mediagoblin.auth import lib as auth_lib
from mediagoblin.auth import forms as auth_forms
from mediagoblin.auth.lib import send_verification_email, \
send_fp_verification_email
def email_debug_message(request):
"""
If the server is running in email debug mode (which is
the current default), give a debug message to the user
so that they have an idea where to find their email.
"""
if mg_globals.app_config['email_debug_mode']:
# DEBUG message, no need to translate
messages.add_message(request, messages.DEBUG,
u"This instance is running in email debug mode. "
u"The email will be on the console of the server process.")
def register(request):
"""
Your classic registration view!
"""
# Redirects to indexpage if registrations are disabled
if not mg_globals.app_config["allow_registration"]:
messages.add_message(
request,
messages.WARNING,
_('Sorry, registration is disabled on this instance.'))
return redirect(request, "index")
register_form = auth_forms.RegistrationForm(request.POST)
if request.method == 'POST' and register_form.validate():
# TODO: Make sure the user doesn't exist already
username = unicode(request.POST['username'].lower())
email = unicode(request.POST['email'].lower())
users_with_username = request.db.User.find(
{'username': username}).count()
users_with_email = request.db.User.find(
{'email': email}).count()
extra_validation_passes = True
if users_with_username:
register_form.username.errors.append(
_(u'Sorry, a user with that name already exists.'))
extra_validation_passes = False
if users_with_email:
register_form.email.errors.append(
_(u'Sorry, a user with that email address already exists.'))
extra_validation_passes = False
if extra_validation_passes:
# Create the user
user = request.db.User()
user.username = username
user.email = email
user.pw_hash = auth_lib.bcrypt_gen_password_hash(
request.POST['password'])
user.verification_key = unicode(uuid.uuid4())
user.save(validate=True)
# log the user in
request.session['user_id'] = unicode(user._id)
request.session.save()
# send verification email
email_debug_message(request)
send_verification_email(user, request)
# redirect the user to their homepage... there will be a
# message waiting for them to verify their email
return redirect(
request, 'mediagoblin.user_pages.user_home',
user=user.username)
return render_to_response(
request,
'mediagoblin/auth/register.html',
{'register_form': register_form})
def login(request):
"""
MediaGoblin login view.
If you provide the POST with 'next', it'll redirect to that view.
"""
login_form = auth_forms.LoginForm(request.POST)
login_failed = False
if request.method == 'POST' and login_form.validate():
user = request.db.User.one(
{'username': request.POST['username'].lower()})
if user and user.check_login(request.POST['password']):
# set up login in session
request.session['user_id'] = unicode(user._id)
request.session.save()
if request.POST.get('next'):
return exc.HTTPFound(location=request.POST['next'])
else:
return redirect(request, "index")
else:
# Prevent detecting who's on this system by testing login
# attempt timings
auth_lib.fake_login_attempt()
login_failed = True
return render_to_response(
request,
'mediagoblin/auth/login.html',
{'login_form': login_form,
'next': request.GET.get('next') or request.POST.get('next'),
'login_failed': login_failed,
'allow_registration': mg_globals.app_config["allow_registration"]})
def logout(request):
# Maybe deleting the user_id parameter would be enough?
request.session.delete()
return redirect(request, "index")
def verify_email(request):
"""
Email verification view
validates GET parameters against database and unlocks the user account, if
you are lucky :)
"""
# If we don't have userid and token parameters, we can't do anything; 404
if not 'userid' in request.GET or not 'token' in request.GET:
return render_404(request)
user = request.db.User.find_one(
{'_id': ObjectId(unicode(request.GET['userid']))})
if user and user.verification_key == unicode(request.GET['token']):
user.status = u'active'
user.email_verified = True
user.verification_key = None
user.save()
messages.add_message(
request,
messages.SUCCESS,
_("Your email address has been verified. "
"You may now login, edit your profile, and submit images!"))
else:
messages.add_message(
request,
messages.ERROR,
_('The verification key or user id is incorrect'))
return redirect(
request, 'mediagoblin.user_pages.user_home',
user=user.username)
def resend_activation(request):
"""
The reactivation view
Resend the activation email.
"""
if request.user is None:
messages.add_message(
request,
messages.ERROR,
_('You must be logged in so we know who to send the email to!'))
return redirect(request, 'mediagoblin.auth.login')
if request.user["email_verified"]:
messages.add_message(
request,
messages.ERROR,
_("You've already verified your email address!"))
return redirect(request, "mediagoblin.user_pages.user_home", user=request.user['username'])
request.user.verification_key = unicode(uuid.uuid4())
request.user.save()
email_debug_message(request)
send_verification_email(request.user, request)
messages.add_message(
request,
messages.INFO,
_('Resent your verification email.'))
return redirect(
request, 'mediagoblin.user_pages.user_home',
user=request.user.username)
def forgot_password(request):
"""
Forgot password view
Sends an email with an url to renew forgotten password
"""
fp_form = auth_forms.ForgotPassForm(request.POST)
if request.method == 'POST' and fp_form.validate():
# '$or' not available till mongodb 1.5.3
user = request.db.User.find_one(
{'username': request.POST['username']})
if not user:
user = request.db.User.find_one(
{'email': request.POST['username']})
if user:
if user.email_verified and user.status == 'active':
user.fp_verification_key = unicode(uuid.uuid4())
user.fp_token_expire = datetime.datetime.now() + \
datetime.timedelta(days=10)
user.save()
send_fp_verification_email(user, request)
messages.add_message(
request,
messages.INFO,
_("An email has been sent with instructions on how to "
"change your password."))
email_debug_message(request)
else:
# special case... we can't send the email because the
# username is inactive / hasn't verified their email
messages.add_message(
request,
messages.WARNING,
_("Could not send password recovery email as "
"your username is inactive or your account's "
"email address has not been verified."))
return redirect(
request, 'mediagoblin.user_pages.user_home',
user=user.username)
return redirect(request, 'mediagoblin.auth.login')
else:
messages.add_message(
request,
messages.WARNING,
_("Couldn't find someone with that username or email."))
return redirect(request, 'mediagoblin.auth.forgot_password')
return render_to_response(
request,
'mediagoblin/auth/forgot_password.html',
{'fp_form': fp_form})
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 Id
try:
user = request.db.User.find_one(
{'_id': ObjectId(unicode(formdata_userid))})
except InvalidId:
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(
request.POST['password'])
user.fp_verification_key = None
user.fp_token_expire = None
user.save()
return redirect(request, 'mediagoblin.auth.fp_changed_success')
else:
return render_to_response(
request,
'mediagoblin/auth/change_fp.html',
{'cp_form': cp_form})
# in case there is a valid id but no user whit 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.POST
formdata = {
'vars': formdata_vars,
'has_userid_and_token':
'userid' in formdata_vars and 'token' in formdata_vars}
return formdata