channelstream: use pyramid http exception instead of webob.

In Pyramid views we want to use pyramid http exceptions for
better error tracking.

rhodecode/apps/channelstream/views.py

@@ -1,176 +1,176 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2010-2017 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/
 
 """
 Channel Stream controller for rhodecode
 
 :created_on: Oct 10, 2015
 :author: marcinl
 :copyright: (c) 2013-2015 RhodeCode GmbH.
 :license: Commercial License, see LICENSE for more details.
 """
 
 import logging
 import uuid
 
 from pyramid.view import view_config
-from webob.exc import HTTPBadRequest, HTTPForbidden, HTTPBadGateway
+from pyramid.httpexceptions import HTTPBadRequest, HTTPForbidden, HTTPBadGateway
 
 from rhodecode.lib.channelstream import (
     channelstream_request,
     ChannelstreamConnectionException,
     ChannelstreamPermissionException,
     check_channel_permissions,
     get_connection_validators,
     get_user_data,
     parse_channels_info,
     update_history_from_logs,
     STATE_PUBLIC_KEYS)
 from rhodecode.lib.auth import NotAnonymous
 
 log = logging.getLogger(__name__)
 
 
 class ChannelstreamView(object):
     def __init__(self, context, request):
         self.context = context
         self.request = request
 
         # Some of the decorators rely on this attribute to be present
         # on the class of the decorated method.
         self._rhodecode_user = request.user
         registry = request.registry
         self.channelstream_config = registry.rhodecode_plugins['channelstream']
         if not self.channelstream_config.get('enabled'):
             log.error('Channelstream plugin is disabled')
             raise HTTPBadRequest()
 
     @NotAnonymous()
     @view_config(route_name='channelstream_connect', renderer='json')
     def connect(self):
         """ handle authorization of users trying to connect """
         try:
             json_body = self.request.json_body
         except Exception:
             log.exception('Failed to decode json from request')
             raise HTTPBadRequest()
 
         try:
             channels = check_channel_permissions(
                 json_body.get('channels'),
                 get_connection_validators(self.request.registry))
         except ChannelstreamPermissionException:
             log.error('Incorrect permissions for requested channels')
             raise HTTPForbidden()
 
         user = self._rhodecode_user
         if user.user_id:
             user_data = get_user_data(user.user_id)
         else:
             user_data = {
                 'id': None,
                 'username': None,
                 'first_name': None,
                 'last_name': None,
                 'icon_link': None,
                 'display_name': None,
                 'display_link': None,
             }
         user_data['permissions'] = self._rhodecode_user.permissions_safe
         payload = {
             'username': user.username,
             'user_state': user_data,
             'conn_id': str(uuid.uuid4()),
             'channels': channels,
             'channel_configs': {},
             'state_public_keys': STATE_PUBLIC_KEYS,
             'info': {
                 'exclude_channels': ['broadcast']
             }
         }
         filtered_channels = [channel for channel in channels
                              if channel != 'broadcast']
         for channel in filtered_channels:
             payload['channel_configs'][channel] = {
                 'notify_presence': True,
                 'history_size': 100,
                 'store_history': True,
                 'broadcast_presence_with_user_lists': True
             }
         # connect user to server
         try:
             connect_result = channelstream_request(self.channelstream_config,
                                                    payload, '/connect')
         except ChannelstreamConnectionException:
             log.exception('Channelstream service is down')
             return HTTPBadGateway()
 
         connect_result['channels'] = channels
         connect_result['channels_info'] = parse_channels_info(
             connect_result['channels_info'],
             include_channel_info=filtered_channels)
         update_history_from_logs(self.channelstream_config,
                                  filtered_channels, connect_result)
         return connect_result
 
     @NotAnonymous()
     @view_config(route_name='channelstream_subscribe', renderer='json')
     def subscribe(self):
         """ can be used to subscribe specific connection to other channels """
         try:
             json_body = self.request.json_body
         except Exception:
             log.exception('Failed to decode json from request')
             raise HTTPBadRequest()
         try:
             channels = check_channel_permissions(
                 json_body.get('channels'),
                 get_connection_validators(self.request.registry))
         except ChannelstreamPermissionException:
             log.error('Incorrect permissions for requested channels')
             raise HTTPForbidden()
         payload = {'conn_id': json_body.get('conn_id', ''),
                    'channels': channels,
                    'channel_configs': {},
                    'info': {
                        'exclude_channels': ['broadcast']}
                    }
         filtered_channels = [chan for chan in channels if chan != 'broadcast']
         for channel in filtered_channels:
             payload['channel_configs'][channel] = {
                 'notify_presence': True,
                 'history_size': 100,
                 'store_history': True,
                 'broadcast_presence_with_user_lists': True
             }
         try:
             connect_result = channelstream_request(
                 self.channelstream_config, payload, '/subscribe')
         except ChannelstreamConnectionException:
             log.exception('Channelstream service is down')
             return HTTPBadGateway()
         # include_channel_info will limit history only to new channel
         # to not overwrite histories on other channels in client
         connect_result['channels_info'] = parse_channels_info(
             connect_result['channels_info'],
             include_channel_info=filtered_channels)
         update_history_from_logs(self.channelstream_config,
                                  filtered_channels, connect_result)
         return connect_result