Mercurial > kallithea

annotate rhodecode/lib/middleware/pygrack.py @ 4116:ffd45b185016 rhodecode-2.2.5-gpl

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Imported some of the GPLv3'd changes from RhodeCode v2.2.5. This imports changes between changesets 21af6c4eab3d and 6177597791c2 in RhodeCode's original repository, including only changes to Python files and HTML. RhodeCode clearly licensed its changes to these files under GPLv3 in their /LICENSE file, which states the following: The Python code and integrated HTML are licensed under the GPLv3 license. (See: https://code.rhodecode.com/rhodecode/files/v2.2.5/LICENSE or http://web.archive.org/web/20140512193334/https://code.rhodecode.com/rhodecode/files/f3b123159901f15426d18e3dc395e8369f70ebe0/LICENSE for an online copy of that LICENSE file) Conservancy reviewed these changes and confirmed that they can be licensed as a whole to the Kallithea project under GPLv3-only. While some of the contents committed herein are clearly licensed GPLv3-or-later, on the whole we must assume the are GPLv3-only, since the statement above from RhodeCode indicates that they intend GPLv3-only as their license, per GPLv3ยง14 and other relevant sections of GPLv3.
author Bradley M. Kuhn <bkuhn@sfconservancy.org>
date Wed, 02 Jul 2014 19:03:13 -0400
parents dc4644865e8b
children 7e5f8c12a3fc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 import os
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2 import socket
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3 import logging
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4 import traceback
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5
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6 from webob import Request, Response, exc
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7
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8 import rhodecode
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9 from rhodecode.lib.vcs import subprocessio
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11 log = logging.getLogger(__name__)
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14 class FileWrapper(object):
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16 def __init__(self, fd, content_length):
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17 self.fd = fd
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18 self.content_length = content_length
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19 self.remain = content_length
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20
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21 def read(self, size):
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22 if size <= self.remain:
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23 try:
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24 data = self.fd.read(size)
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25 except socket.error:
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26 raise IOError(self)
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27 self.remain -= size
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28 elif self.remain:
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29 data = self.fd.read(self.remain)
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30 self.remain = 0
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31 else:
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32 data = None
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33 return data
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34
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35 def __repr__(self):
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36 return '<FileWrapper %s len: %s, read: %s>' % (
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37 self.fd, self.content_length, self.content_length - self.remain
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38 )
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41 class GitRepository(object):
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42 git_folder_signature = set(['config', 'head', 'info', 'objects', 'refs'])
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43 commands = ['git-upload-pack', 'git-receive-pack']
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44
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45 def __init__(self, repo_name, content_path, extras):
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46 files = set([f.lower() for f in os.listdir(content_path)])
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47 if not (self.git_folder_signature.intersection(files)
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48 == self.git_folder_signature):
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49 raise OSError('%s missing git signature' % content_path)
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50 self.content_path = content_path
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51 self.valid_accepts = ['application/x-%s-result' %
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52 c for c in self.commands]
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53 self.repo_name = repo_name
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54 self.extras = extras
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55
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56 def _get_fixedpath(self, path):
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57 """
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58 Small fix for repo_path
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59
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60 :param path:
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61 """
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62 return path.split(self.repo_name, 1)[-1].strip('/')
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63
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64 def inforefs(self, request, environ):
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65 """
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66 WSGI Response producer for HTTP GET Git Smart
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67 HTTP /info/refs request.
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68 """
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69
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70 git_command = request.GET.get('service')
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71 if git_command not in self.commands:
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72 log.debug('command %s not allowed' % git_command)
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73 return exc.HTTPMethodNotAllowed()
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74
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75 # note to self:
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76 # please, resist the urge to add '\n' to git capture and increment
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77 # line count by 1.
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78 # The code in Git client not only does NOT need '\n', but actually
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79 # blows up if you sprinkle "flush" (0000) as "0001\n".
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80 # It reads binary, per number of bytes specified.
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81 # if you do add '\n' as part of data, count it.
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82 server_advert = '# service=%s' % git_command
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83 packet_len = str(hex(len(server_advert) + 4)[2:].rjust(4, '0')).lower()
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84 _git_path = rhodecode.CONFIG.get('git_path', 'git')
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85 try:
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86 out = subprocessio.SubprocessIOChunker(
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87 r'%s %s --stateless-rpc --advertise-refs "%s"' % (
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88 _git_path, git_command[4:], self.content_path),
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89 starting_values=[
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90 packet_len + server_advert + '0000'
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91 ]
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92 )
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93 except EnvironmentError, e:
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94 log.error(traceback.format_exc())
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95 raise exc.HTTPExpectationFailed()
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96 resp = Response()
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97 resp.content_type = 'application/x-%s-advertisement' % str(git_command)
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98 resp.charset = None
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99 resp.app_iter = out
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100 return resp
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101
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102 def backend(self, request, environ):
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103 """
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104 WSGI Response producer for HTTP POST Git Smart HTTP requests.
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105 Reads commands and data from HTTP POST's body.
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106 returns an iterator obj with contents of git command's
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107 response to stdout
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108 """
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109 _git_path = rhodecode.CONFIG.get('git_path', 'git')
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110 git_command = self._get_fixedpath(request.path_info)
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111 if git_command not in self.commands:
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112 log.debug('command %s not allowed' % git_command)
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113 return exc.HTTPMethodNotAllowed()
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114
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115 if 'CONTENT_LENGTH' in environ:
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116 inputstream = FileWrapper(environ['wsgi.input'],
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117 request.content_length)
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118 else:
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119 inputstream = environ['wsgi.input']
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120
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121 try:
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122 gitenv = os.environ
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123 # forget all configs
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124 gitenv['GIT_CONFIG_NOGLOBAL'] = '1'
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125 opts = dict(
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126 env=gitenv,
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127 cwd=self.content_path,
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128 )
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129 cmd = r'%s %s --stateless-rpc "%s"' % (_git_path, git_command[4:],
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130 self.content_path),
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131 log.debug('handling cmd %s' % cmd)
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132 out = subprocessio.SubprocessIOChunker(
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133 cmd,
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134 inputstream=inputstream,
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135 **opts
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136 )
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137 except EnvironmentError, e:
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138 log.error(traceback.format_exc())
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139 raise exc.HTTPExpectationFailed()
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140
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141 if git_command in [u'git-receive-pack']:
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142 # updating refs manually after each push.
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143 # Needed for pre-1.7.0.4 git clients using regular HTTP mode.
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144 from rhodecode.lib.vcs import get_repo
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145 from dulwich.server import update_server_info
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146 repo = get_repo(self.content_path)
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147 if repo:
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148 update_server_info(repo._repo)
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149
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150 resp = Response()
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151 resp.content_type = 'application/x-%s-result' % git_command.encode('utf8')
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152 resp.charset = None
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153 resp.app_iter = out
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154 return resp
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155
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156 def __call__(self, environ, start_response):
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157 request = Request(environ)
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158 _path = self._get_fixedpath(request.path_info)
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159 if _path.startswith('info/refs'):
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160 app = self.inforefs
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161 elif [a for a in self.valid_accepts if a in request.accept]:
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162 app = self.backend
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163 try:
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164 resp = app(request, environ)
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165 except exc.HTTPException, e:
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166 resp = e
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167 log.error(traceback.format_exc())
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168 except Exception, e:
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169 log.error(traceback.format_exc())
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170 resp = exc.HTTPInternalServerError()
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171 return resp(environ, start_response)
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172
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173
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174 class GitDirectory(object):
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175
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176 def __init__(self, repo_root, repo_name, extras):
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177 repo_location = os.path.join(repo_root, repo_name)
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178 if not os.path.isdir(repo_location):
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179 raise OSError(repo_location)
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180
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181 self.content_path = repo_location
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182 self.repo_name = repo_name
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183 self.repo_location = repo_location
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184 self.extras = extras
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185
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186 def __call__(self, environ, start_response):
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187 content_path = self.content_path
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188 try:
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189 app = GitRepository(self.repo_name, content_path, self.extras)
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190 except (AssertionError, OSError):
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191 content_path = os.path.join(content_path, '.git')
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192 if os.path.isdir(content_path):
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193 app = GitRepository(self.repo_name, content_path, self.extras)
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194 else:
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195 return exc.HTTPNotFound()(environ, start_response)
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196 return app(environ, start_response)
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197
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198
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199 def make_wsgi_app(repo_name, repo_root, extras):
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200 from dulwich.web import LimitedInputFilter, GunzipFilter
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201 app = GitDirectory(repo_root, repo_name, extras)
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202 return GunzipFilter(LimitedInputFilter(app))