|
|
# -*- 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 <marcin@python-works.com>
|
|
|
: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.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'] or self.action:
|
|
|
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'])
|
|
|
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'] or self.action:
|
|
|
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:
|
|
|
print 'not allowed'
|
|
|
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)
|
|
|
messages = []
|
|
|
messages.append('thank you for using rhodecode')
|
|
|
return app(environ, start_response)
|
|
|
else:
|
|
|
return app(environ, start_response)
|
|
|
|
|
|
|
|
|
def __make_app(self):
|
|
|
backend = dulserver.DictBackend({'/' + self.repo_name: Repo(self.repo_path)})
|
|
|
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)
|
|
|
|
