svn-support: Add missing argument to tmplate context.

This argument was only added in the view handling GET requests.
But in case of an error the POST view also rederes the template
and threfore need this arguement.

rhodecode/controllers/admin/settings.py

@@ -1,803 +1,807 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/
 
 
 """
 settings controller for rhodecode admin
 """
 
 import collections
 import logging
 import urllib2
 
 import datetime
 import formencode
 from formencode import htmlfill
 import packaging.version
 from pylons import request, tmpl_context as c, url, config
 from pylons.controllers.util import redirect
 from pylons.i18n.translation import _, lazy_ugettext
 from pyramid.threadlocal import get_current_registry
 from webob.exc import HTTPBadRequest
 
 import rhodecode
 from rhodecode.admin.navigation import navigation_list
 from rhodecode.lib import auth
 from rhodecode.lib import helpers as h
 from rhodecode.lib.auth import LoginRequired, HasPermissionAllDecorator
 from rhodecode.lib.base import BaseController, render
 from rhodecode.lib.celerylib import tasks, run_task
 from rhodecode.lib.utils import repo2db_mapper
 from rhodecode.lib.utils2 import (
     str2bool, safe_unicode, AttributeDict, safe_int)
 from rhodecode.lib.compat import OrderedDict
 from rhodecode.lib.ext_json import json
 from rhodecode.lib.utils import jsonify
 
 from rhodecode.model.db import RhodeCodeUi, Repository
 from rhodecode.model.forms import ApplicationSettingsForm, \
     ApplicationUiSettingsForm, ApplicationVisualisationForm, \
     LabsSettingsForm, IssueTrackerPatternsForm
 
 from rhodecode.model.scm import ScmModel
 from rhodecode.model.notification import EmailNotificationModel
 from rhodecode.model.meta import Session
 from rhodecode.model.settings import (
     IssueTrackerSettingsModel, VcsSettingsModel, SettingNotFound,
     SettingsModel)
 
 from rhodecode.model.supervisor import SupervisorModel, SUPERVISOR_MASTER
 from rhodecode.svn_support.config_keys import generate_config
 
 
 log = logging.getLogger(__name__)
 
 
 class SettingsController(BaseController):
     """REST Controller styled on the Atom Publishing Protocol"""
     # To properly map this controller, ensure your config/routing.py
     # file has a resource setup:
     #     map.resource('setting', 'settings', controller='admin/settings',
     #         path_prefix='/admin', name_prefix='admin_')
 
     @LoginRequired()
     def __before__(self):
         super(SettingsController, self).__before__()
         c.labs_active = str2bool(
             rhodecode.CONFIG.get('labs_settings_active', 'true'))
         c.navlist = navigation_list(request)
 
     def _get_hg_ui_settings(self):
         ret = RhodeCodeUi.query().all()
 
         if not ret:
             raise Exception('Could not get application ui settings !')
         settings = {}
         for each in ret:
             k = each.ui_key
             v = each.ui_value
             if k == '/':
                 k = 'root_path'
 
             if k in ['push_ssl', 'publish']:
                 v = str2bool(v)
 
             if k.find('.') != -1:
                 k = k.replace('.', '_')
 
             if each.ui_section in ['hooks', 'extensions']:
                 v = each.ui_active
 
             settings[each.ui_section + '_' + k] = v
         return settings
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     @jsonify
     def delete_svn_pattern(self):
         if not request.is_xhr:
             raise HTTPBadRequest()
 
         delete_pattern_id = request.POST.get('delete_svn_pattern')
         model = VcsSettingsModel()
         try:
             model.delete_global_svn_pattern(delete_pattern_id)
         except SettingNotFound:
             raise HTTPBadRequest()
 
         Session().commit()
         return True
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_vcs_update(self):
         """POST /admin/settings: All items in the collection"""
         # url('admin_settings_vcs')
         c.active = 'vcs'
 
         model = VcsSettingsModel()
         c.svn_branch_patterns = model.get_global_svn_branch_patterns()
         c.svn_tag_patterns = model.get_global_svn_tag_patterns()
 
+        # TODO: Replace with request.registry after migrating to pyramid.
+        pyramid_settings = get_current_registry().settings
+        c.svn_proxy_generate_config = pyramid_settings[generate_config]
+
         application_form = ApplicationUiSettingsForm()()
 
         try:
             form_result = application_form.to_python(dict(request.POST))
         except formencode.Invalid as errors:
             h.flash(
                 _("Some form inputs contain invalid data."),
                 category='error')
             return htmlfill.render(
                 render('admin/settings/settings.html'),
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8",
                 force_defaults=False
             )
 
         try:
             if c.visual.allow_repo_location_change:
                 model.update_global_path_setting(
                     form_result['paths_root_path'])
 
             model.update_global_ssl_setting(form_result['web_push_ssl'])
             model.update_global_hook_settings(form_result)
 
             model.create_or_update_global_svn_settings(form_result)
             model.create_or_update_global_hg_settings(form_result)
             model.create_or_update_global_pr_settings(form_result)
         except Exception:
             log.exception("Exception while updating settings")
             h.flash(_('Error occurred during updating '
                       'application settings'), category='error')
         else:
             Session().commit()
             h.flash(_('Updated VCS settings'), category='success')
             return redirect(url('admin_settings_vcs'))
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False)
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_vcs(self):
         """GET /admin/settings: All items in the collection"""
         # url('admin_settings_vcs')
         c.active = 'vcs'
         model = VcsSettingsModel()
         c.svn_branch_patterns = model.get_global_svn_branch_patterns()
         c.svn_tag_patterns = model.get_global_svn_tag_patterns()
 
         # TODO: Replace with request.registry after migrating to pyramid.
         pyramid_settings = get_current_registry().settings
         c.svn_proxy_generate_config = pyramid_settings[generate_config]
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False)
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_mapping_update(self):
         """POST /admin/settings/mapping: All items in the collection"""
         # url('admin_settings_mapping')
         c.active = 'mapping'
         rm_obsolete = request.POST.get('destroy', False)
         invalidate_cache = request.POST.get('invalidate', False)
         log.debug(
             'rescanning repo location with destroy obsolete=%s', rm_obsolete)
 
         if invalidate_cache:
             log.debug('invalidating all repositories cache')
             for repo in Repository.get_all():
                 ScmModel().mark_for_invalidation(repo.repo_name, delete=True)
 
         filesystem_repos = ScmModel().repo_scan()
         added, removed = repo2db_mapper(filesystem_repos, rm_obsolete)
         _repr = lambda l: ', '.join(map(safe_unicode, l)) or '-'
         h.flash(_('Repositories successfully '
                   'rescanned added: %s ; removed: %s') %
                 (_repr(added), _repr(removed)),
                 category='success')
         return redirect(url('admin_settings_mapping'))
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_mapping(self):
         """GET /admin/settings/mapping: All items in the collection"""
         # url('admin_settings_mapping')
         c.active = 'mapping'
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False)
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_global_update(self):
         """POST /admin/settings/global: All items in the collection"""
         # url('admin_settings_global')
         c.active = 'global'
         application_form = ApplicationSettingsForm()()
         try:
             form_result = application_form.to_python(dict(request.POST))
         except formencode.Invalid as errors:
             return htmlfill.render(
                 render('admin/settings/settings.html'),
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8",
                 force_defaults=False)
 
         try:
             settings = [
                 ('title', 'rhodecode_title'),
                 ('realm', 'rhodecode_realm'),
                 ('pre_code', 'rhodecode_pre_code'),
                 ('post_code', 'rhodecode_post_code'),
                 ('captcha_public_key', 'rhodecode_captcha_public_key'),
                 ('captcha_private_key', 'rhodecode_captcha_private_key'),
             ]
             for setting, form_key in settings:
                 sett = SettingsModel().create_or_update_setting(
                     setting, form_result[form_key])
                 Session().add(sett)
 
             Session().commit()
             SettingsModel().invalidate_settings_cache()
             h.flash(_('Updated application settings'), category='success')
         except Exception:
             log.exception("Exception while updating application settings")
             h.flash(
                 _('Error occurred during updating application settings'),
                 category='error')
 
         return redirect(url('admin_settings_global'))
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_global(self):
         """GET /admin/settings/global: All items in the collection"""
         # url('admin_settings_global')
         c.active = 'global'
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False)
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_visual_update(self):
         """POST /admin/settings/visual: All items in the collection"""
         # url('admin_settings_visual')
         c.active = 'visual'
         application_form = ApplicationVisualisationForm()()
         try:
             form_result = application_form.to_python(dict(request.POST))
         except formencode.Invalid as errors:
             return htmlfill.render(
                 render('admin/settings/settings.html'),
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8",
                 force_defaults=False
             )
 
         try:
             settings = [
                 ('show_public_icon', 'rhodecode_show_public_icon', 'bool'),
                 ('show_private_icon', 'rhodecode_show_private_icon', 'bool'),
                 ('stylify_metatags', 'rhodecode_stylify_metatags', 'bool'),
                 ('repository_fields', 'rhodecode_repository_fields', 'bool'),
                 ('dashboard_items', 'rhodecode_dashboard_items', 'int'),
                 ('admin_grid_items', 'rhodecode_admin_grid_items', 'int'),
                 ('show_version', 'rhodecode_show_version', 'bool'),
                 ('use_gravatar', 'rhodecode_use_gravatar', 'bool'),
                 ('markup_renderer', 'rhodecode_markup_renderer', 'unicode'),
                 ('gravatar_url', 'rhodecode_gravatar_url', 'unicode'),
                 ('clone_uri_tmpl', 'rhodecode_clone_uri_tmpl', 'unicode'),
                 ('support_url', 'rhodecode_support_url', 'unicode'),
                 ('show_revision_number', 'rhodecode_show_revision_number', 'bool'),
                 ('show_sha_length', 'rhodecode_show_sha_length', 'int'),
             ]
             for setting, form_key, type_ in settings:
                 sett = SettingsModel().create_or_update_setting(
                     setting, form_result[form_key], type_)
                 Session().add(sett)
 
             Session().commit()
             SettingsModel().invalidate_settings_cache()
             h.flash(_('Updated visualisation settings'), category='success')
         except Exception:
             log.exception("Exception updating visualization settings")
             h.flash(_('Error occurred during updating '
                       'visualisation settings'),
                     category='error')
 
         return redirect(url('admin_settings_visual'))
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_visual(self):
         """GET /admin/settings/visual: All items in the collection"""
         # url('admin_settings_visual')
         c.active = 'visual'
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False)
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_issuetracker_test(self):
         if request.is_xhr:
             return h.urlify_commit_message(
                 request.POST.get('test_text', ''),
                 'repo_group/test_repo1')
         else:
             raise HTTPBadRequest()
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_issuetracker_delete(self):
         uid = request.POST.get('uid')
         IssueTrackerSettingsModel().delete_entries(uid)
         h.flash(_('Removed issue tracker entry'), category='success')
         return redirect(url('admin_settings_issuetracker'))
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_issuetracker(self):
         """GET /admin/settings/issue-tracker: All items in the collection"""
         # url('admin_settings_issuetracker')
         c.active = 'issuetracker'
         defaults = SettingsModel().get_all_settings()
 
         entry_key = 'rhodecode_issuetracker_pat_'
 
         c.issuetracker_entries = {}
         for k, v in defaults.items():
             if k.startswith(entry_key):
                 uid = k[len(entry_key):]
                 c.issuetracker_entries[uid] = None
 
         for uid in c.issuetracker_entries:
             c.issuetracker_entries[uid] = AttributeDict({
                 'pat': defaults.get('rhodecode_issuetracker_pat_' + uid),
                 'url': defaults.get('rhodecode_issuetracker_url_' + uid),
                 'pref': defaults.get('rhodecode_issuetracker_pref_' + uid),
                 'desc': defaults.get('rhodecode_issuetracker_desc_' + uid),
             })
 
         return render('admin/settings/settings.html')
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_issuetracker_save(self):
         settings_model = IssueTrackerSettingsModel()
 
         form = IssueTrackerPatternsForm()().to_python(request.POST)
         if form:
             for uid in form.get('delete_patterns', []):
                 settings_model.delete_entries(uid)
 
             for pattern in form.get('patterns', []):
                 for setting, value, type_ in pattern:
                     sett = settings_model.create_or_update_setting(
                         setting, value, type_)
                     Session().add(sett)
 
                 Session().commit()
 
             SettingsModel().invalidate_settings_cache()
             h.flash(_('Updated issue tracker entries'), category='success')
         return redirect(url('admin_settings_issuetracker'))
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_email_update(self):
         """POST /admin/settings/email: All items in the collection"""
         # url('admin_settings_email')
         c.active = 'email'
 
         test_email = request.POST.get('test_email')
 
         if not test_email:
             h.flash(_('Please enter email address'), category='error')
             return redirect(url('admin_settings_email'))
 
         email_kwargs = {
             'date': datetime.datetime.now(),
             'user': c.rhodecode_user,
             'rhodecode_version': c.rhodecode_version
         }
 
         (subject, headers, email_body,
          email_body_plaintext) = EmailNotificationModel().render_email(
             EmailNotificationModel.TYPE_EMAIL_TEST, **email_kwargs)
 
         recipients = [test_email] if test_email else None
 
         run_task(tasks.send_email, recipients, subject,
                  email_body_plaintext, email_body)
 
         h.flash(_('Send email task created'), category='success')
         return redirect(url('admin_settings_email'))
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_email(self):
         """GET /admin/settings/email: All items in the collection"""
         # url('admin_settings_email')
         c.active = 'email'
         c.rhodecode_ini = rhodecode.CONFIG
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False)
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_hooks_update(self):
         """POST or DELETE /admin/settings/hooks: All items in the collection"""
         # url('admin_settings_hooks')
         c.active = 'hooks'
         if c.visual.allow_custom_hooks_settings:
             ui_key = request.POST.get('new_hook_ui_key')
             ui_value = request.POST.get('new_hook_ui_value')
 
             hook_id = request.POST.get('hook_id')
             new_hook = False
 
             model = SettingsModel()
             try:
                 if ui_value and ui_key:
                     model.create_or_update_hook(ui_key, ui_value)
                     h.flash(_('Added new hook'), category='success')
                     new_hook = True
                 elif hook_id:
                     RhodeCodeUi.delete(hook_id)
                     Session().commit()
 
                 # check for edits
                 update = False
                 _d = request.POST.dict_of_lists()
                 for k, v in zip(_d.get('hook_ui_key', []),
                                 _d.get('hook_ui_value_new', [])):
                     model.create_or_update_hook(k, v)
                     update = True
 
                 if update and not new_hook:
                     h.flash(_('Updated hooks'), category='success')
                 Session().commit()
             except Exception:
                 log.exception("Exception during hook creation")
                 h.flash(_('Error occurred during hook creation'),
                         category='error')
 
         return redirect(url('admin_settings_hooks'))
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_hooks(self):
         """GET /admin/settings/hooks: All items in the collection"""
         # url('admin_settings_hooks')
         c.active = 'hooks'
 
         model = SettingsModel()
         c.hooks = model.get_builtin_hooks()
         c.custom_hooks = model.get_custom_hooks()
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False)
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_search(self):
         """GET /admin/settings/search: All items in the collection"""
         # url('admin_settings_search')
         c.active = 'search'
 
         from rhodecode.lib.index import searcher_from_config
         searcher = searcher_from_config(config)
         c.statistics = searcher.statistics()
 
         return render('admin/settings/settings.html')
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_system(self):
         """GET /admin/settings/system: All items in the collection"""
         # url('admin_settings_system')
         snapshot = str2bool(request.GET.get('snapshot'))
         c.active = 'system'
 
         defaults = self._form_defaults()
         c.rhodecode_ini = rhodecode.CONFIG
         c.rhodecode_update_url = defaults.get('rhodecode_update_url')
         server_info = ScmModel().get_server_info(request.environ)
         for key, val in server_info.iteritems():
             setattr(c, key, val)
 
         if c.disk['percent'] > 90:
             h.flash(h.literal(_(
                 'Critical: your disk space is very low <b>%s%%</b> used' %
                 c.disk['percent'])), 'error')
         elif c.disk['percent'] > 70:
             h.flash(h.literal(_(
                 'Warning: your disk space is running low <b>%s%%</b> used' %
                 c.disk['percent'])), 'warning')
 
         try:
             c.uptime_age = h._age(
                 h.time_to_datetime(c.boot_time), False, show_suffix=False)
         except TypeError:
             c.uptime_age = c.boot_time
 
         try:
             c.system_memory = '%s/%s, %s%% (%s%%) used%s' % (
                 h.format_byte_size_binary(c.memory['used']),
                 h.format_byte_size_binary(c.memory['total']),
                 c.memory['percent2'],
                 c.memory['percent'],
                 ' %s' % c.memory['error'] if 'error' in c.memory else '')
         except TypeError:
             c.system_memory = 'NOT AVAILABLE'
 
         rhodecode_ini_safe = rhodecode.CONFIG.copy()
         blacklist = [
             'rhodecode_license_key',
             'routes.map',
             'pylons.h',
             'pylons.app_globals',
             'pylons.environ_config',
             'sqlalchemy.db1.url',
             ('app_conf', 'sqlalchemy.db1.url')
         ]
         for k in blacklist:
             if isinstance(k, tuple):
                 section, key = k
                 if section in rhodecode_ini_safe:
                     rhodecode_ini_safe[section].pop(key, None)
             else:
                 rhodecode_ini_safe.pop(k, None)
 
         c.rhodecode_ini_safe = rhodecode_ini_safe
 
         # TODO: marcink, figure out how to allow only selected users to do this
         c.allowed_to_snapshot = False
 
         if snapshot:
             if c.allowed_to_snapshot:
                 return render('admin/settings/settings_system_snapshot.html')
             else:
                 h.flash('You are not allowed to do this', category='warning')
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=defaults,
             encoding="UTF-8",
             force_defaults=False)
 
     @staticmethod
     def get_update_data(update_url):
         """Return the JSON update data."""
         ver = rhodecode.__version__
         log.debug('Checking for upgrade on `%s` server', update_url)
         opener = urllib2.build_opener()
         opener.addheaders = [('User-agent', 'RhodeCode-SCM/%s' % ver)]
         response = opener.open(update_url)
         response_data = response.read()
         data = json.loads(response_data)
 
         return data
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_system_update(self):
         """GET /admin/settings/system/updates: All items in the collection"""
         # url('admin_settings_system_update')
         defaults = self._form_defaults()
         update_url = defaults.get('rhodecode_update_url', '')
 
         _err = lambda s: '<div style="color:#ff8888; padding:4px 0px">%s</div>' % (s)
         try:
             data = self.get_update_data(update_url)
         except urllib2.URLError as e:
             log.exception("Exception contacting upgrade server")
             return _err('Failed to contact upgrade server: %r' % e)
         except ValueError as e:
             log.exception("Bad data sent from update server")
             return _err('Bad data sent from update server')
 
         latest = data['versions'][0]
 
         c.update_url = update_url
         c.latest_data = latest
         c.latest_ver = latest['version']
         c.cur_ver = rhodecode.__version__
         c.should_upgrade = False
 
         if (packaging.version.Version(c.latest_ver) >
                 packaging.version.Version(c.cur_ver)):
             c.should_upgrade = True
         c.important_notices = latest['general']
 
         return render('admin/settings/settings_system_update.html')
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_supervisor(self):
         c.rhodecode_ini = rhodecode.CONFIG
         c.active = 'supervisor'
 
         c.supervisor_procs = OrderedDict([
             (SUPERVISOR_MASTER, {}),
         ])
 
         c.log_size = 10240
         supervisor = SupervisorModel()
 
         _connection = supervisor.get_connection(
             c.rhodecode_ini.get('supervisor.uri'))
         c.connection_error = None
         try:
             _connection.supervisor.getAllProcessInfo()
         except Exception as e:
             c.connection_error = str(e)
             log.exception("Exception reading supervisor data")
             return render('admin/settings/settings.html')
 
         groupid = c.rhodecode_ini.get('supervisor.group_id')
 
         # feed our group processes to the main
         for proc in supervisor.get_group_processes(_connection, groupid):
             c.supervisor_procs[proc['name']] = {}
 
         for k in c.supervisor_procs.keys():
             try:
                 # master process info
                 if k == SUPERVISOR_MASTER:
                     _data = supervisor.get_master_state(_connection)
                     _data['name'] = 'supervisor master'
                     _data['description'] = 'pid %s, id: %s, ver: %s' % (
                         _data['pid'], _data['id'], _data['ver'])
                     c.supervisor_procs[k] = _data
                 else:
                     procid = groupid + ":" + k
                     c.supervisor_procs[k] = supervisor.get_process_info(_connection, procid)
             except Exception as e:
                 log.exception("Exception reading supervisor data")
                 c.supervisor_procs[k] = {'_rhodecode_error': str(e)}
 
         return render('admin/settings/settings.html')
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_supervisor_log(self, procid):
         import rhodecode
         c.rhodecode_ini = rhodecode.CONFIG
         c.active = 'supervisor_tail'
 
         supervisor = SupervisorModel()
         _connection = supervisor.get_connection(c.rhodecode_ini.get('supervisor.uri'))
         groupid = c.rhodecode_ini.get('supervisor.group_id')
         procid = groupid + ":" + procid if procid != SUPERVISOR_MASTER else procid
 
         c.log_size = 10240
         offset = abs(safe_int(request.GET.get('offset', c.log_size))) * -1
         c.log = supervisor.read_process_log(_connection, procid, offset, 0)
 
         return render('admin/settings/settings.html')
 
     @HasPermissionAllDecorator('hg.admin')
     @auth.CSRFRequired()
     def settings_labs_update(self):
         """POST /admin/settings/labs: All items in the collection"""
         # url('admin_settings/labs', method={'POST'})
         c.active = 'labs'
 
         application_form = LabsSettingsForm()()
         try:
             form_result = application_form.to_python(dict(request.POST))
         except formencode.Invalid as errors:
             h.flash(
                 _('Some form inputs contain invalid data.'),
                 category='error')
             return htmlfill.render(
                 render('admin/settings/settings.html'),
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding='UTF-8',
                 force_defaults=False
             )
 
         try:
             session = Session()
             for setting in _LAB_SETTINGS:
                 setting_name = setting.key[len('rhodecode_'):]
                 sett = SettingsModel().create_or_update_setting(
                     setting_name, form_result[setting.key], setting.type)
                 session.add(sett)
 
         except Exception:
             log.exception('Exception while updating lab settings')
             h.flash(_('Error occurred during updating labs settings'),
                     category='error')
         else:
             Session().commit()
             SettingsModel().invalidate_settings_cache()
             h.flash(_('Updated Labs settings'), category='success')
             return redirect(url('admin_settings_labs'))
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding='UTF-8',
             force_defaults=False)
 
     @HasPermissionAllDecorator('hg.admin')
     def settings_labs(self):
         """GET /admin/settings/labs: All items in the collection"""
         # url('admin_settings_labs')
         if not c.labs_active:
             redirect(url('admin_settings'))
 
         c.active = 'labs'
         c.lab_settings = _LAB_SETTINGS
 
         return htmlfill.render(
             render('admin/settings/settings.html'),
             defaults=self._form_defaults(),
             encoding='UTF-8',
             force_defaults=False)
 
     def _form_defaults(self):
         defaults = SettingsModel().get_all_settings()
         defaults.update(self._get_hg_ui_settings())
         defaults.update({
             'new_svn_branch': '',
             'new_svn_tag': '',
         })
         return defaults
 
 
 # :param key: name of the setting including the 'rhodecode_' prefix
 # :param type: the RhodeCodeSetting type to use.
 # :param group: the i18ned group in which we should dispaly this setting
 # :param label: the i18ned label we should display for this setting
 # :param help: the i18ned help we should dispaly for this setting
 LabSetting = collections.namedtuple(
     'LabSetting', ('key', 'type', 'group', 'label', 'help'))
 
 
 # This list has to be kept in sync with the form
 # rhodecode.model.forms.LabsSettingsForm.
 _LAB_SETTINGS = [
 
 ]