fixed issue #181, and small fix in gitmiddleware

docs/changelog.rst

@@ -1,318 +1,318 b''
 .. _changelog:
 
 Changelog
 =========
 
 1.2.0 (**2011-XX-XX**)
 ======================
 
 :status: in-progress
 :branch: beta
 
 news
 ----
 
 - implemented #89 Can setup google analytics code from settings menu
 - implemented #91 added nicer looking archive urls with more download options
   like tags, branches
 - implemented #44 into file browsing, and added follow branch option
 - implemented #84 downloads can be enabled/disabled for each repository
 - anonymous repository can be cloned without having to pass default:default
   into clone url
 - fixed #90 whoosh indexer can index chooses repositories passed in command 
   line
 - extended journal with day aggregates and paging
 - implemented #107 source code lines highlight ranges
 - implemented #93 customizable changelog on combined revision ranges - 
   equivalent of githubs compare view 
 - implemented #108 extended and more powerful LDAP configuration
 - implemented #56 users groups
 - major code rewrites optimized codes for speed and memory usage
 - raw and diff downloads are now in git format
 - setup command checks for write access to given path
 - fixed many issues with international characters and unicode. It uses utf8
   decode with replace to provide less errors even with non utf8 encoded strings
 - #125 added API KEY access to feeds
 - #109 Repository can be created from external Mercurial link (aka. remote 
   repository, and manually updated (via pull) from admin panel
 - beta git support - push/pull server + basic view for git repos
 - added followers page
 
 fixes
 -----
 
 - fixed file browser bug, when switching into given form revision the url was 
   not changing
 - fixed propagation to error controller on simplehg and simplegit middlewares
 - fixed error when trying to make a download on empty repository
 - fixed problem with '[' chars in commit messages in journal
 - fixed #99 Unicode errors, on file node paths with non utf-8 characters
 - journal fork fixes
 - removed issue with space inside renamed repository after deletion
 - fixed strange issue on formencode imports
 - fixed #126 Deleting repository on Windows, rename used incompatible chars. 
 - #150 fixes for errors on repositories mapped in db but corrupted in 
   filesystem
-  
+- fixed problem with ascendant characters in realm #181
 
 1.1.8 (**2011-04-12**)
 ======================
 
 news
 ----
 
 - improved windows support
 
 fixes
 -----
 
 - fixed #140 freeze of python dateutil library, since new version is python2.x
   incompatible
 - setup-app will check for write permission in given path
 - cleaned up license info issue #149
 - fixes for issues #137,#116 and problems with unicode and accented characters.
 - fixes crashes on gravatar, when passed in email as unicode
 - fixed tooltip flickering problems
 - fixed came_from redirection on windows
 - fixed logging modules, and sql formatters
 - windows fixes for os.kill issue #133
 - fixes path splitting for windows issues #148
 - fixed issue #143 wrong import on migration to 1.1.X
 - fixed problems with displaying binary files, thanks to Thomas Waldmann
 - removed name from archive files since it's breaking ui for long repo names
 - fixed issue with archive headers sent to browser, thanks to Thomas Waldmann
 - fixed compatibility for 1024px displays, and larger dpi settings, thanks to 
   Thomas Waldmann
 - fixed issue #166 summary pager was skipping 10 revisions on second page
 
 
 1.1.7 (**2011-03-23**)
 ======================
 
 news
 ----
 
 fixes
 -----
 
 - fixed (again) #136 installation support for FreeBSD
 
 
 1.1.6 (**2011-03-21**)
 ======================
 
 news
 ----
 
 fixes
 -----
 
 - fixed #136 installation support for FreeBSD
 - RhodeCode will check for python version during installation
 
 1.1.5 (**2011-03-17**)
 ======================
 
 news
 ----
 
 - basic windows support, by exchanging pybcrypt into sha256 for windows only
   highly inspired by idea of mantis406
 
 fixes
 -----
 
 - fixed sorting by author in main page
 - fixed crashes with diffs on binary files
 - fixed #131 problem with boolean values for LDAP
 - fixed #122 mysql problems thanks to striker69 
 - fixed problem with errors on calling raw/raw_files/annotate functions 
   with unknown revisions
 - fixed returned rawfiles attachment names with international character
 - cleaned out docs, big thanks to Jason Harris
 
 1.1.4 (**2011-02-19**)
 ======================
 
 news
 ----
 
 fixes
 -----
 
 - fixed formencode import problem on settings page, that caused server crash
   when that page was accessed as first after server start
 - journal fixes
 - fixed option to access repository just by entering http://server/<repo_name> 
 
 1.1.3 (**2011-02-16**)
 ======================
 
 news
 ----
 
 - implemented #102 allowing the '.' character in username
 - added option to access repository just by entering http://server/<repo_name>
 - celery task ignores result for better performance
 
 fixes
 -----
 
 - fixed ehlo command and non auth mail servers on smtp_lib. Thanks to 
   apollo13 and Johan Walles
 - small fixes in journal
 - fixed problems with getting setting for celery from .ini files
 - registration, password reset and login boxes share the same title as main 
   application now
 - fixed #113: to high permissions to fork repository
 - fixed problem with '[' chars in commit messages in journal
 - removed issue with space inside renamed repository after deletion
 - db transaction fixes when filesystem repository creation failed
 - fixed #106 relation issues on databases different than sqlite
 - fixed static files paths links to use of url() method
 
 1.1.2 (**2011-01-12**)
 ======================
 
 news
 ----
 
 
 fixes
 -----
 
 - fixes #98 protection against float division of percentage stats
 - fixed graph bug
 - forced webhelpers version since it was making troubles during installation 
 
 1.1.1 (**2011-01-06**)
 ======================
  
 news
 ----
 
 - added force https option into ini files for easier https usage (no need to
   set server headers with this options)
 - small css updates
 
 fixes
 -----
 
 - fixed #96 redirect loop on files view on repositories without changesets
 - fixed #97 unicode string passed into server header in special cases (mod_wsgi)
   and server crashed with errors
 - fixed large tooltips problems on main page
 - fixed #92 whoosh indexer is more error proof
 
 1.1.0 (**2010-12-18**)
 ======================
 
 news
 ----
 
 - rewrite of internals for vcs >=0.1.10
 - uses mercurial 1.7 with dotencode disabled for maintaining compatibility 
   with older clients
 - anonymous access, authentication via ldap
 - performance upgrade for cached repos list - each repository has it's own 
   cache that's invalidated when needed.
 - performance upgrades on repositories with large amount of commits (20K+)
 - main page quick filter for filtering repositories
 - user dashboards with ability to follow chosen repositories actions
 - sends email to admin on new user registration
 - added cache/statistics reset options into repository settings
 - more detailed action logger (based on hooks) with pushed changesets lists
   and options to disable those hooks from admin panel
 - introduced new enhanced changelog for merges that shows more accurate results
 - new improved and faster code stats (based on pygments lexers mapping tables, 
   showing up to 10 trending sources for each repository. Additionally stats
   can be disabled in repository settings.
 - gui optimizations, fixed application width to 1024px
 - added cut off (for large files/changesets) limit into config files
 - whoosh, celeryd, upgrade moved to paster command
 - other than sqlite database backends can be used
 
 fixes
 -----
 
 - fixes #61 forked repo was showing only after cache expired
 - fixes #76 no confirmation on user deletes
 - fixes #66 Name field misspelled
 - fixes #72 block user removal when he owns repositories
 - fixes #69 added password confirmation fields
 - fixes #87 RhodeCode crashes occasionally on updating repository owner
 - fixes #82 broken annotations on files with more than 1 blank line at the end
 - a lot of fixes and tweaks for file browser
 - fixed detached session issues
 - fixed when user had no repos he would see all repos listed in my account
 - fixed ui() instance bug when global hgrc settings was loaded for server 
   instance and all hgrc options were merged with our db ui() object
 - numerous small bugfixes
  
 (special thanks for TkSoh for detailed feedback)
 
 
 1.0.2 (**2010-11-12**)
 ======================
 
 news
 ----
 
 - tested under python2.7
 - bumped sqlalchemy and celery versions
 
 fixes
 -----
 
 - fixed #59 missing graph.js
 - fixed repo_size crash when repository had broken symlinks
 - fixed python2.5 crashes.
 
 
 1.0.1 (**2010-11-10**)
 ======================
 
 news
 ----
 
 - small css updated
 
 fixes
 -----
 
 - fixed #53 python2.5 incompatible enumerate calls
 - fixed #52 disable mercurial extension for web
 - fixed #51 deleting repositories don't delete it's dependent objects
 
 
 1.0.0 (**2010-11-02**)
 ======================
 
 - security bugfix simplehg wasn't checking for permissions on commands
   other than pull or push.
 - fixed doubled messages after push or pull in admin journal
 - templating and css corrections, fixed repo switcher on chrome, updated titles
 - admin menu accessible from options menu on repository view
 - permissions cached queries
 
 1.0.0rc4  (**2010-10-12**)
 ==========================
 
 - fixed python2.5 missing simplejson imports (thanks to Jens Bäckman)
 - removed cache_manager settings from sqlalchemy meta
 - added sqlalchemy cache settings to ini files
 - validated password length and added second try of failure on paster setup-app
 - fixed setup database destroy prompt even when there was no db
 
 
 1.0.0rc3 (**2010-10-11**)
 =========================
 
 - fixed i18n during installation.
 
 1.0.0rc2 (**2010-10-11**)
 =========================
 
 - Disabled dirsize in file browser, it's causing nasty bug when dir renames 
   occure. After vcs is fixed it'll be put back again.
 - templating/css rewrites, optimized css.
  No newline at end of file

rhodecode/lib/middleware/simplegit.py

@@ -1,275 +1,275 b''
 # -*- coding: utf-8 -*-
 """
     rhodecode.lib.middleware.simplegit
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
     SimpleGit middleware for handling git protocol request (push/clone etc.)
     It's implemented with basic auth function
 
     :created_on: Apr 28, 2010
     :author: marcink
     :copyright: (C) 2009-2010 Marcin Kuzminski <[e-mail]>
     :license: GPLv3, see COPYING for more details.
 """
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU 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 General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
 import logging
 import traceback
 
 from dulwich import server as dulserver
 
 
 class SimpleGitUploadPackHandler(dulserver.UploadPackHandler):
 
     def handle(self):
         write = lambda x: self.proto.write_sideband(1, x)
 
         graph_walker = dulserver.ProtocolGraphWalker(self,
                                                      self.repo.object_store,
                                                      self.repo.get_peeled)
         objects_iter = self.repo.fetch_objects(
           graph_walker.determine_wants, graph_walker, self.progress,
           get_tagged=self.get_tagged)
 
         # Do they want any objects?
         if len(objects_iter) == 0:
             return
 
         self.progress("counting objects: %d, done.\n" % len(objects_iter))
         dulserver.write_pack_data(dulserver.ProtocolFile(None, write),
                                   objects_iter, len(objects_iter))
         messages = []
         messages.append('thank you for using rhodecode')
 
         for msg in messages:
             self.progress(msg + "\n")
         # we are done
         self.proto.write("0000")
 
 dulserver.DEFAULT_HANDLERS = {
   'git-upload-pack': SimpleGitUploadPackHandler,
   'git-receive-pack': dulserver.ReceivePackHandler,
 }
 
 from dulwich.repo import Repo
 from dulwich.web import HTTPGitApplication
 
 from paste.auth.basic import AuthBasicAuthenticator
 from paste.httpheaders import REMOTE_USER, AUTH_TYPE
 
 from rhodecode.lib.auth import authfunc, HasPermissionAnyMiddleware
 from rhodecode.lib.utils import invalidate_cache, check_repo_fast
 from rhodecode.model.user import UserModel
 
 from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError
 
 log = logging.getLogger(__name__)
 
 
 def is_git(environ):
     """Returns True if request's target is git server.
     ``HTTP_USER_AGENT`` would then have git client version given.
 
     :param environ:
     """
     http_user_agent = environ.get('HTTP_USER_AGENT')
     if http_user_agent and http_user_agent.startswith('git'):
         return True
     return False
 
 
 class SimpleGit(object):
 
     def __init__(self, application, config):
         self.application = application
         self.config = config
         #authenticate this git request using
         self.authenticate = AuthBasicAuthenticator('', authfunc)
         self.ipaddr = '0.0.0.0'
-        self.repository = None
+        self.repo_name = None
         self.username = None
         self.action = None
 
     def __call__(self, environ, start_response):
         if not is_git(environ):
             return self.application(environ, start_response)
 
         proxy_key = 'HTTP_X_REAL_IP'
         def_key = 'REMOTE_ADDR'
         self.ipaddr = environ.get(proxy_key, environ.get(def_key, '0.0.0.0'))
         # skip passing error to error controller
         environ['pylons.status_code_redirect'] = True
 
         #======================================================================
         # GET ACTION PULL or PUSH
         #======================================================================
         self.action = self.__get_action(environ)
         try:
             #==================================================================
             # GET REPOSITORY NAME
             #==================================================================
             self.repo_name = self.__get_repository(environ)
         except:
             return HTTPInternalServerError()(environ, start_response)
 
         #======================================================================
         # CHECK ANONYMOUS PERMISSION
         #======================================================================
         if self.action in ['pull', 'push']:
             anonymous_user = self.__get_user('default')
             self.username = anonymous_user.username
             anonymous_perm = self.__check_permission(self.action,
                                                      anonymous_user,
                                                      self.repo_name)
 
             if anonymous_perm is not True or anonymous_user.active is False:
                 if anonymous_perm is not True:
                     log.debug('Not enough credentials to access this '
                               'repository as anonymous user')
                 if anonymous_user.active is False:
                     log.debug('Anonymous access is disabled, running '
                               'authentication')
                 #==============================================================
                 # DEFAULT PERM FAILED OR ANONYMOUS ACCESS IS DISABLED SO WE
                 # NEED TO AUTHENTICATE AND ASK FOR AUTH USER PERMISSIONS
                 #==============================================================
 
                 if not REMOTE_USER(environ):
-                    self.authenticate.realm = str(
-                                                self.config['rhodecode_realm'])
+                    self.authenticate.realm = self.config['rhodecode_realm'].\
+                        encode('utf8', 'replace')
                     result = self.authenticate(environ)
                     if isinstance(result, str):
                         AUTH_TYPE.update(environ, 'basic')
                         REMOTE_USER.update(environ, result)
                     else:
                         return result.wsgi_application(environ, start_response)
 
                 #==============================================================
                 # CHECK PERMISSIONS FOR THIS REQUEST USING GIVEN USERNAME FROM
                 # BASIC AUTH
                 #==============================================================
 
                 if self.action in ['pull', 'push']:
                     username = REMOTE_USER(environ)
                     try:
                         user = self.__get_user(username)
                         self.username = user.username
                     except:
                         log.error(traceback.format_exc())
                         return HTTPInternalServerError()(environ,
                                                          start_response)
 
                     #check permissions for this repository
                     perm = self.__check_permission(self.action, user,
                                                    self.repo_name)
                     if perm is not True:
                         return HTTPForbidden()(environ, start_response)
 
         self.extras = {'ip': self.ipaddr,
                        'username': self.username,
                        'action': self.action,
                        'repository': self.repo_name}
 
         #===================================================================
         # GIT REQUEST HANDLING
         #===================================================================
         self.basepath = self.config['base_path']
         self.repo_path = os.path.join(self.basepath, self.repo_name)
         #quick check if that dir exists...
         if check_repo_fast(self.repo_name, self.basepath):
             return HTTPNotFound()(environ, start_response)
         try:
             app = self.__make_app()
         except:
             log.error(traceback.format_exc())
             return HTTPInternalServerError()(environ, start_response)
 
         #invalidate cache on push
         if self.action == 'push':
             self.__invalidate_cache(self.repo_name)
 
         return app(environ, start_response)
 
     def __make_app(self):
         _d = {'/' + self.repo_name: Repo(self.repo_path)}
         backend = dulserver.DictBackend(_d)
         gitserve = HTTPGitApplication(backend)
 
         return gitserve
 
     def __check_permission(self, action, user, repo_name):
         """Checks permissions using action (push/pull) user and repository
         name
 
         :param action: push or pull action
         :param user: user instance
         :param repo_name: repository name
         """
         if action == 'push':
             if not HasPermissionAnyMiddleware('repository.write',
                                               'repository.admin')(user,
                                                                   repo_name):
                 return False
 
         else:
             #any other action need at least read permission
             if not HasPermissionAnyMiddleware('repository.read',
                                               'repository.write',
                                               'repository.admin')(user,
                                                                   repo_name):
                 return False
 
         return True
 
     def __get_repository(self, environ):
         """Get's repository name out of PATH_INFO header
 
         :param environ: environ where PATH_INFO is stored
         """
         try:
             repo_name = '/'.join(environ['PATH_INFO'].split('/')[1:])
             if repo_name.endswith('/'):
                 repo_name = repo_name.rstrip('/')
         except:
             log.error(traceback.format_exc())
             raise
         repo_name = repo_name.split('/')[0]
         return repo_name
 
     def __get_user(self, username):
         return UserModel().get_by_username(username, cache=True)
 
     def __get_action(self, environ):
         """Maps git request commands into a pull or push command.
 
         :param environ:
         """
         service = environ['QUERY_STRING'].split('=')
         if len(service) > 1:
             service_cmd = service[1]
             mapping = {'git-receive-pack': 'push',
                        'git-upload-pack': 'pull',
                        }
 
             return mapping.get(service_cmd,
                                service_cmd if service_cmd else 'other')
         else:
             return 'other'
 
     def __invalidate_cache(self, repo_name):
         """we know that some change was made to repositories and we should
         invalidate the cache to see the changes right away but only for
         push requests"""
         invalidate_cache('get_repo_cached_%s' % repo_name)

rhodecode/lib/middleware/simplehg.py

@@ -1,271 +1,271 b''
 # -*- coding: utf-8 -*-
 """
     rhodecode.lib.middleware.simplehg
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
     SimpleHG middleware for handling mercurial protocol request
     (push/clone etc.). It's implemented with basic auth function
 
     :created_on: Apr 28, 2010
     :author: marcink
     :copyright: (C) 2009-2010 Marcin Kuzminski <[e-mail]>
     :license: GPLv3, see COPYING for more details.
 """
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU 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 General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
 import logging
 import traceback
 
 from mercurial.error import RepoError
 from mercurial.hgweb import hgweb
 from mercurial.hgweb.request import wsgiapplication
 
 from paste.auth.basic import AuthBasicAuthenticator
 from paste.httpheaders import REMOTE_USER, AUTH_TYPE
 
 from rhodecode.lib.auth import authfunc, HasPermissionAnyMiddleware
 from rhodecode.lib.utils import make_ui, invalidate_cache, \
     check_repo_fast, ui_sections
 from rhodecode.model.user import UserModel
 
 from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError
 
 log = logging.getLogger(__name__)
 
 
 def is_mercurial(environ):
     """Returns True if request's target is mercurial server - header
     ``HTTP_ACCEPT`` of such request would start with ``application/mercurial``.
     """
     http_accept = environ.get('HTTP_ACCEPT')
     if http_accept and http_accept.startswith('application/mercurial'):
         return True
     return False
 
 
 class SimpleHg(object):
 
     def __init__(self, application, config):
         self.application = application
         self.config = config
         #authenticate this mercurial request using authfunc
         self.authenticate = AuthBasicAuthenticator('', authfunc)
         self.ipaddr = '0.0.0.0'
         self.repo_name = None
         self.username = None
         self.action = None
 
     def __call__(self, environ, start_response):
         if not is_mercurial(environ):
             return self.application(environ, start_response)
 
         proxy_key = 'HTTP_X_REAL_IP'
         def_key = 'REMOTE_ADDR'
         self.ipaddr = environ.get(proxy_key, environ.get(def_key, '0.0.0.0'))
         # skip passing error to error controller
         environ['pylons.status_code_redirect'] = True
 
         #======================================================================
         # GET ACTION PULL or PUSH
         #======================================================================
         self.action = self.__get_action(environ)
         try:
             #==================================================================
             # GET REPOSITORY NAME
             #==================================================================
             self.repo_name = self.__get_repository(environ)
         except:
             return HTTPInternalServerError()(environ, start_response)
 
         #======================================================================
         # CHECK ANONYMOUS PERMISSION
         #======================================================================
         if self.action in ['pull', 'push']:
             anonymous_user = self.__get_user('default')
             self.username = anonymous_user.username
             anonymous_perm = self.__check_permission(self.action,
                                                      anonymous_user,
                                                      self.repo_name)
 
             if anonymous_perm is not True or anonymous_user.active is False:
                 if anonymous_perm is not True:
                     log.debug('Not enough credentials to access this '
                               'repository as anonymous user')
                 if anonymous_user.active is False:
                     log.debug('Anonymous access is disabled, running '
                               'authentication')
                 #==============================================================
                 # DEFAULT PERM FAILED OR ANONYMOUS ACCESS IS DISABLED SO WE
                 # NEED TO AUTHENTICATE AND ASK FOR AUTH USER PERMISSIONS
                 #==============================================================
 
                 if not REMOTE_USER(environ):
-                    self.authenticate.realm = str(
-                                                self.config['rhodecode_realm'])
+                    self.authenticate.realm = self.config['rhodecode_realm'].\
+                        encode('utf8', 'replace')
                     result = self.authenticate(environ)
                     if isinstance(result, str):
                         AUTH_TYPE.update(environ, 'basic')
                         REMOTE_USER.update(environ, result)
                     else:
                         return result.wsgi_application(environ, start_response)
 
                 #==============================================================
                 # CHECK PERMISSIONS FOR THIS REQUEST USING GIVEN USERNAME FROM
                 # BASIC AUTH
                 #==============================================================
 
                 if self.action in ['pull', 'push']:
                     username = REMOTE_USER(environ)
                     try:
                         user = self.__get_user(username)
                         self.username = user.username
                     except:
                         log.error(traceback.format_exc())
                         return HTTPInternalServerError()(environ,
                                                          start_response)
 
                     #check permissions for this repository
                     perm = self.__check_permission(self.action, user,
                                                    self.repo_name)
                     if perm is not True:
                         return HTTPForbidden()(environ, start_response)
 
         self.extras = {'ip': self.ipaddr,
                        'username': self.username,
                        'action': self.action,
                        'repository': self.repo_name}
 
         #======================================================================
         # MERCURIAL REQUEST HANDLING
         #======================================================================
         environ['PATH_INFO'] = '/'  # since we wrap into hgweb, reset the path
         self.baseui = make_ui('db')
         self.basepath = self.config['base_path']
         self.repo_path = os.path.join(self.basepath, self.repo_name)
 
         #quick check if that dir exists...
         if check_repo_fast(self.repo_name, self.basepath):
             return HTTPNotFound()(environ, start_response)
         try:
             app = wsgiapplication(self.__make_app)
         except RepoError, e:
             if str(e).find('not found') != -1:
                 return HTTPNotFound()(environ, start_response)
         except Exception:
             log.error(traceback.format_exc())
             return HTTPInternalServerError()(environ, start_response)
 
         #invalidate cache on push
         if self.action == 'push':
             self.__invalidate_cache(self.repo_name)
 
         return app(environ, start_response)
 
     def __make_app(self):
         """
         Make an wsgi application using hgweb, and inject generated baseui
         instance, additionally inject some extras into ui object
         """
         self.__inject_extras(self.baseui, self.extras)
         return hgweb(str(self.repo_path), baseui=self.baseui)
 
 
     def __check_permission(self, action, user, repo_name):
         """
         Checks permissions using action (push/pull) user and repository
         name
 
         :param action: push or pull action
         :param user: user instance
         :param repo_name: repository name
         """
         if action == 'push':
             if not HasPermissionAnyMiddleware('repository.write',
                                               'repository.admin')(user,
                                                                   repo_name):
                 return False
 
         else:
             #any other action need at least read permission
             if not HasPermissionAnyMiddleware('repository.read',
                                               'repository.write',
                                               'repository.admin')(user,
                                                                   repo_name):
                 return False
 
         return True
 
     def __get_repository(self, environ):
         """
         Get's repository name out of PATH_INFO header
 
         :param environ: environ where PATH_INFO is stored
         """
         try:
             repo_name = '/'.join(environ['PATH_INFO'].split('/')[1:])
             if repo_name.endswith('/'):
                 repo_name = repo_name.rstrip('/')
         except:
             log.error(traceback.format_exc())
             raise
 
         return repo_name
 
     def __get_user(self, username):
         return UserModel().get_by_username(username, cache=True)
 
     def __get_action(self, environ):
         """
         Maps mercurial request commands into a clone,pull or push command.
         This should always return a valid command string
 
         :param environ:
         """
         mapping = {'changegroup': 'pull',
                    'changegroupsubset': 'pull',
                    'stream_out': 'pull',
                    'listkeys': 'pull',
                    'unbundle': 'push',
                    'pushkey': 'push', }
         for qry in environ['QUERY_STRING'].split('&'):
             if qry.startswith('cmd'):
                 cmd = qry.split('=')[-1]
                 if cmd in mapping:
                     return mapping[cmd]
                 else:
                     return 'pull'
 
     def __invalidate_cache(self, repo_name):
         """we know that some change was made to repositories and we should
         invalidate the cache to see the changes right away but only for
         push requests"""
         invalidate_cache('get_repo_cached_%s' % repo_name)
 
     def __inject_extras(self, baseui, extras={}):
 
         hgrc = os.path.join(self.repo_path, '.hg', 'hgrc')
 
         #inject some additional parameters that will be available in ui
         #for hooks
         for k, v in extras.items():
             baseui.setconfig('rhodecode_extras', k, v)
 
         repoui = make_ui('file', hgrc, False)
 
         if repoui:
             #overwrite our ui instance with the section from hgrc file
             for section in ui_sections:
                 for k, v in repoui.configitems(section):
                     baseui.repo.ui.setconfig(section, k, v)