login: Move method to store user in session out of login controller.

- Preparation to migrate the login view to pyramid.

rhodecode/controllers/login.py

@@ -1,290 +1,291 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2010-2016  RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # 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 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/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 """
 Login controller for rhodeocode
 """
 
 import datetime
 import formencode
 import logging
 import urlparse
 import uuid
 
 from formencode import htmlfill
 from webob.exc import HTTPFound
 from pylons.i18n.translation import _
 from pylons.controllers.util import redirect
 from pylons import request, session, tmpl_context as c, url
 from recaptcha.client.captcha import submit
 
 import rhodecode.lib.helpers as h
 from rhodecode.lib.auth import (
     AuthUser, HasPermissionAnyDecorator, CSRFRequired)
 from rhodecode.authentication.base import loadplugin
 from rhodecode.lib.base import BaseController, render
 from rhodecode.lib.exceptions import UserCreationError
 from rhodecode.lib.utils2 import safe_str
 from rhodecode.model.db import User
 from rhodecode.model.forms import LoginForm, RegisterForm, PasswordResetForm
 from rhodecode.model.login_session import LoginSession
 from rhodecode.model.meta import Session
 from rhodecode.model.settings import SettingsModel
 from rhodecode.model.user import UserModel
 
 log = logging.getLogger(__name__)
 
 
-class LoginController(BaseController):
-
-    def __before__(self):
-        super(LoginController, self).__before__()
-
-    def _store_user_in_session(self, username, remember=False):
+def _store_user_in_session(username, remember=False):
         user = User.get_by_username(username, case_insensitive=True)
         auth_user = AuthUser(user.user_id)
         auth_user.set_authenticated()
         cs = auth_user.get_cookie_store()
         session['rhodecode_user'] = cs
         user.update_lastlogin()
         Session().commit()
 
         # If they want to be remembered, update the cookie
         if remember:
             _year = (datetime.datetime.now() +
                      datetime.timedelta(seconds=60 * 60 * 24 * 365))
             session._set_cookie_expires(_year)
 
         session.save()
 
         log.info('user %s is now authenticated and stored in '
                  'session, session attrs %s', username, cs)
 
         # dumps session attrs back to cookie
         session._update_cookie_out()
         # we set new cookie
         headers = None
         if session.request['set_cookie']:
             # send set-cookie headers back to response to update cookie
             headers = [('Set-Cookie', session.request['cookie_out'])]
         return headers
 
+
+class LoginController(BaseController):
+
+    def __before__(self):
+        super(LoginController, self).__before__()
+
     def _validate_came_from(self, came_from):
         if not came_from:
             return came_from
 
         parsed = urlparse.urlparse(came_from)
         server_parsed = urlparse.urlparse(url.current())
         allowed_schemes = ['http', 'https']
         if parsed.scheme and parsed.scheme not in allowed_schemes:
             log.error('Suspicious URL scheme detected %s for url %s' %
                       (parsed.scheme, parsed))
             came_from = url('home')
         elif server_parsed.netloc != parsed.netloc:
             log.error('Suspicious NETLOC detected %s for url %s server url '
                       'is: %s' % (parsed.netloc, parsed, server_parsed))
             came_from = url('home')
         if any(bad_str in parsed.path for bad_str in ('\r', '\n')):
             log.error('Header injection detected `%s` for url %s server url ' %
                       (parsed.path, parsed))
             came_from = url('home')
         return came_from
 
     def _redirect_to_origin(self, location, headers=None):
         request.GET.pop('came_from', None)
         raise HTTPFound(location=location, headers=headers)
 
     def _set_came_from(self):
         _default_came_from = url('home')
         came_from = self._validate_came_from(
             safe_str(request.GET.get('came_from', '')))
         c.came_from = came_from or _default_came_from
 
     def index(self):
         self._set_came_from()
 
         not_default = c.rhodecode_user.username != User.DEFAULT_USER
         ip_allowed = c.rhodecode_user.ip_allowed
 
         # redirect if already logged in
         if c.rhodecode_user.is_authenticated and not_default and ip_allowed:
             raise self._redirect_to_origin(location=c.came_from)
 
         if request.POST:
             # import Login Form validator class
             login_form = LoginForm()()
             try:
                 session.invalidate()
                 c.form_result = login_form.to_python(dict(request.POST))
                 # form checks for username/password, now we're authenticated
-                headers = self._store_user_in_session(
+                headers = _store_user_in_session(
                     username=c.form_result['username'],
                     remember=c.form_result['remember'])
                 raise self._redirect_to_origin(
                     location=c.came_from, headers=headers)
             except formencode.Invalid as errors:
                 defaults = errors.value
                 # remove password from filling in form again
                 del defaults['password']
                 return htmlfill.render(
                     render('/login.html'),
                     defaults=errors.value,
                     errors=errors.error_dict or {},
                     prefix_error=False,
                     encoding="UTF-8",
                     force_defaults=False)
             except UserCreationError as e:
                 # container auth or other auth functions that create users on
                 # the fly can throw this exception signaling that there's issue
                 # with user creation, explanation should be provided in
                 # Exception itself
                 h.flash(e, 'error')
 
         # check if we use container plugin, and try to login using it.
         from rhodecode.authentication.base import authenticate, HTTP_TYPE
         try:
             log.debug('Running PRE-AUTH for container based authentication')
             auth_info = authenticate(
                 '', '', request.environ, HTTP_TYPE, skip_missing=True)
         except UserCreationError as e:
             log.error(e)
             h.flash(e, 'error')
             # render login, with flash message about limit
             return render('/login.html')
 
         if auth_info:
-            headers = self._store_user_in_session(auth_info.get('username'))
+            headers = _store_user_in_session(auth_info.get('username'))
             raise self._redirect_to_origin(
                 location=c.came_from, headers=headers)
         return render('/login.html')
 
     @HasPermissionAnyDecorator('hg.admin', 'hg.register.auto_activate',
                                'hg.register.manual_activate')
     def register(self):
         c.auto_active = 'hg.register.auto_activate' in User.get_default_user()\
             .AuthUser.permissions['global']
 
         settings = SettingsModel().get_all_settings()
         captcha_private_key = settings.get('rhodecode_captcha_private_key')
         c.captcha_active = bool(captcha_private_key)
         c.captcha_public_key = settings.get('rhodecode_captcha_public_key')
         c.register_message = settings.get('rhodecode_register_message') or ''
         c.form_data = {}
 
         if request.POST:
             register_form = RegisterForm()()
             try:
                 form_result = register_form.to_python(dict(request.POST))
                 form_result['active'] = c.auto_active
 
                 if c.captcha_active:
                     response = submit(
                         request.POST.get('recaptcha_challenge_field'),
                         request.POST.get('recaptcha_response_field'),
                         private_key=captcha_private_key,
                         remoteip=self.ip_addr)
                     if c.captcha_active and not response.is_valid:
                         _value = form_result
                         _msg = _('bad captcha')
                         error_dict = {'recaptcha_field': _msg}
                         raise formencode.Invalid(_msg, _value, None,
                                                  error_dict=error_dict)
 
                 UserModel().create_registration(form_result)
                 h.flash(_('You have successfully registered with RhodeCode'),
                         category='success')
                 Session().commit()
                 return redirect(url('login_home'))
 
             except formencode.Invalid as errors:
                 return htmlfill.render(
                     render('/register.html'),
                     defaults=errors.value,
                     errors=errors.error_dict or {},
                     prefix_error=False,
                     encoding="UTF-8",
                     force_defaults=False)
             except UserCreationError as e:
                 # container auth or other auth functions that create users on
                 # the fly can throw this exception signaling that there's issue
                 # with user creation, explanation should be provided in
                 # Exception itself
                 h.flash(e, 'error')
 
         return render('/register.html')
 
     def password_reset(self):
         settings = SettingsModel().get_all_settings()
         captcha_private_key = settings.get('rhodecode_captcha_private_key')
         c.captcha_active = bool(captcha_private_key)
         c.captcha_public_key = settings.get('rhodecode_captcha_public_key')
 
         if request.POST:
             password_reset_form = PasswordResetForm()()
             try:
                 form_result = password_reset_form.to_python(dict(request.POST))
                 if c.captcha_active:
                     response = submit(
                         request.POST.get('recaptcha_challenge_field'),
                         request.POST.get('recaptcha_response_field'),
                         private_key=captcha_private_key,
                         remoteip=self.ip_addr)
                     if c.captcha_active and not response.is_valid:
                         _value = form_result
                         _msg = _('bad captcha')
                         error_dict = {'recaptcha_field': _msg}
                         raise formencode.Invalid(_msg, _value, None,
                                                  error_dict=error_dict)
                 UserModel().reset_password_link(form_result)
                 h.flash(_('Your password reset link was sent'),
                         category='success')
                 return redirect(url('login_home'))
 
             except formencode.Invalid as errors:
                 return htmlfill.render(
                     render('/password_reset.html'),
                     defaults=errors.value,
                     errors=errors.error_dict or {},
                     prefix_error=False,
                     encoding="UTF-8",
                     force_defaults=False)
 
         return render('/password_reset.html')
 
     def password_reset_confirmation(self):
         if request.GET and request.GET.get('key'):
             try:
                 user = User.get_by_auth_token(request.GET.get('key'))
                 data = {'email': user.email}
                 UserModel().reset_password(data)
                 h.flash(_(
                     'Your password reset was successful, '
                     'a new password has been sent to your email'),
                     category='success')
             except Exception as e:
                 log.error(e)
                 return redirect(url('reset_password'))
 
         return redirect(url('login_home'))
 
     @CSRFRequired()
     def logout(self):
         LoginSession().destroy_user_session()
         return redirect(url('home'))