fixed #545, exception during cloning of non-bare repositories

rhodecode/lib/middleware/pygrack.py

@@ -1,201 +1,200 b''
 import os
 import socket
 import logging
 import subprocess
 
 from webob import Request, Response, exc
 
 from rhodecode.lib import subprocessio
 
 log = logging.getLogger(__name__)
 
 
 class FileWrapper(object):
 
     def __init__(self, fd, content_length):
         self.fd = fd
         self.content_length = content_length
         self.remain = content_length
 
     def read(self, size):
         if size <= self.remain:
             try:
                 data = self.fd.read(size)
             except socket.error:
                 raise IOError(self)
             self.remain -= size
         elif self.remain:
             data = self.fd.read(self.remain)
             self.remain = 0
         else:
             data = None
         return data
 
     def __repr__(self):
         return '<FileWrapper %s len: %s, read: %s>' % (
             self.fd, self.content_length, self.content_length - self.remain
         )
 
 
 class GitRepository(object):
     git_folder_signature = set(['config', 'head', 'info', 'objects', 'refs'])
     commands = ['git-upload-pack', 'git-receive-pack']
 
     def __init__(self, repo_name, content_path, extras):
         files = set([f.lower() for f in os.listdir(content_path)])
         if  not (self.git_folder_signature.intersection(files)
                 == self.git_folder_signature):
             raise OSError('%s missing git signature' % content_path)
         self.content_path = content_path
         self.valid_accepts = ['application/x-%s-result' %
                               c for c in self.commands]
         self.repo_name = repo_name
         self.extras = extras
 
     def _get_fixedpath(self, path):
         """
         Small fix for repo_path
 
         :param path:
         :type path:
         """
         return path.split(self.repo_name, 1)[-1].strip('/')
 
     def inforefs(self, request, environ):
         """
         WSGI Response producer for HTTP GET Git Smart
         HTTP /info/refs request.
         """
 
         git_command = request.GET.get('service')
         if git_command not in self.commands:
             log.debug('command %s not allowed' % git_command)
             return exc.HTTPMethodNotAllowed()
 
         # note to self:
         # please, resist the urge to add '\n' to git capture and increment
         # line count by 1.
         # The code in Git client not only does NOT need '\n', but actually
         # blows up if you sprinkle "flush" (0000) as "0001\n".
         # It reads binary, per number of bytes specified.
         # if you do add '\n' as part of data, count it.
         server_advert = '# service=%s' % git_command
         packet_len = str(hex(len(server_advert) + 4)[2:].rjust(4, '0')).lower()
         try:
             out = subprocessio.SubprocessIOChunker(
                 r'git %s --stateless-rpc --advertise-refs "%s"' % (
                                 git_command[4:], self.content_path),
                 starting_values=[
                     packet_len + server_advert + '0000'
                 ]
             )
         except EnvironmentError, e:
             log.exception(e)
             raise exc.HTTPExpectationFailed()
         resp = Response()
         resp.content_type = 'application/x-%s-advertisement' % str(git_command)
         resp.charset = None
         resp.app_iter = out
         return resp
 
     def backend(self, request, environ):
         """
         WSGI Response producer for HTTP POST Git Smart HTTP requests.
         Reads commands and data from HTTP POST's body.
         returns an iterator obj with contents of git command's
         response to stdout
         """
         git_command = self._get_fixedpath(request.path_info)
         if git_command not in self.commands:
             log.debug('command %s not allowed' % git_command)
             return exc.HTTPMethodNotAllowed()
 
         if 'CONTENT_LENGTH' in environ:
             inputstream = FileWrapper(environ['wsgi.input'],
                                       request.content_length)
         else:
             inputstream = environ['wsgi.input']
 
         try:
             gitenv = os.environ
             from rhodecode import CONFIG
             from rhodecode.lib.compat import json
             gitenv['RHODECODE_EXTRAS'] = json.dumps(self.extras)
             # forget all configs
             gitenv['GIT_CONFIG_NOGLOBAL'] = '1'
             # we need current .ini file used to later initialize rhodecode
             # env and connect to db
             gitenv['RHODECODE_CONFIG_FILE'] = CONFIG['__file__']
             opts = dict(
                 env=gitenv,
                 cwd=os.getcwd()
             )
             out = subprocessio.SubprocessIOChunker(
                 r'git %s --stateless-rpc "%s"' % (git_command[4:],
                                                   self.content_path),
                 inputstream=inputstream,
                 **opts
             )
         except EnvironmentError, e:
             log.exception(e)
             raise exc.HTTPExpectationFailed()
 
         if git_command in [u'git-receive-pack']:
             # updating refs manually after each push.
             # Needed for pre-1.7.0.4 git clients using regular HTTP mode.
             subprocess.call(u'git --git-dir "%s" '
                             'update-server-info' % self.content_path,
                             shell=True)
 
         resp = Response()
         resp.content_type = 'application/x-%s-result' % git_command.encode('utf8')
         resp.charset = None
         resp.app_iter = out
         return resp
 
     def __call__(self, environ, start_response):
         request = Request(environ)
         _path = self._get_fixedpath(request.path_info)
         if _path.startswith('info/refs'):
             app = self.inforefs
         elif [a for a in self.valid_accepts if a in request.accept]:
             app = self.backend
         try:
             resp = app(request, environ)
         except exc.HTTPException, e:
             resp = e
             log.exception(e)
         except Exception, e:
             log.exception(e)
             resp = exc.HTTPInternalServerError()
         return resp(environ, start_response)
 
 
 class GitDirectory(object):
 
     def __init__(self, repo_root, repo_name, extras):
         repo_location = os.path.join(repo_root, repo_name)
         if not os.path.isdir(repo_location):
             raise OSError(repo_location)
 
         self.content_path = repo_location
         self.repo_name = repo_name
         self.repo_location = repo_location
         self.extras = extras
 
     def __call__(self, environ, start_response):
         content_path = self.content_path
         try:
             app = GitRepository(self.repo_name, content_path, self.extras)
         except (AssertionError, OSError):
-            if os.path.isdir(os.path.join(content_path, '.git')):
-                app = GitRepository(self.repo_name,
-                                    os.path.join(content_path, '.git'),
-                                    self.username)
+            content_path = os.path.join(content_path, '.git')
+            if os.path.isdir(content_path):
+                app = GitRepository(self.repo_name, content_path, self.extras)
             else:
                 return exc.HTTPNotFound()(environ, start_response)
         return app(environ, start_response)
 
 
 def make_wsgi_app(repo_name, repo_root, extras):
     return GitDirectory(repo_root, repo_name, extras)