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annotate roundup/cgi/wsgi_handler.py @ 7558:c8a931aa7514

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fix(i18n): issue2551184 - improve i18n handling Apply patch to make sure that the dates tests use the locale files in the deployed tracker and not other roundup files.
author Marcus Preisch
date Thu, 20 Jul 2023 20:08:28 -0400
parents 273c8c2b5042
children 0fe2b9f6e19f
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1 # WSGI interface for Roundup Issue Tracker
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2 #
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3 # This module is free software, you may redistribute it
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4 # and/or modify under the same terms as Python.
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5 #
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6
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7 import os
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8 import weakref
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9
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10 from contextlib import contextmanager
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11
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12 from roundup.anypy.html import html_escape
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13
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14 import roundup.instance
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15 from roundup.cgi import TranslationService
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16 from roundup.anypy import http_
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17 from roundup.anypy.strings import s2b
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18
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19 from roundup.cgi.client import BinaryFieldStorage
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20
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21 BaseHTTPRequestHandler = http_.server.BaseHTTPRequestHandler
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22 DEFAULT_ERROR_MESSAGE = http_.server.DEFAULT_ERROR_MESSAGE
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23
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24 try:
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25 # python2 is missing this definition
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26 http_.server.BaseHTTPRequestHandler.responses[429]
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27 except KeyError:
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28 http_.server.BaseHTTPRequestHandler.responses[429] = (
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29 'Too Many Requests',
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30 'The user has sent too many requests in '
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31 'a given amount of time ("rate limiting")'
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32 )
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33
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34 class Headers(object):
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35 """ Idea more or less stolen from the 'apache.py' in same directory.
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36 Except that wsgi stores http headers in environment.
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37 """
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38 def __init__(self, environ):
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39 self.environ = environ
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40
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41 def mangle_name(self, name):
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42 """ Content-Type is handled specially, it doesn't have a HTTP_
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43 prefix in cgi.
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44 """
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45 n = name.replace('-', '_').upper()
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46 if n == 'CONTENT_TYPE':
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47 return n
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48 return 'HTTP_' + n
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49
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50 def get(self, name, default=None):
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51 return self.environ.get(self.mangle_name(name), default)
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52 getheader = get
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53
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54
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55 class Writer(object):
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56 '''Perform a start_response if need be when we start writing.'''
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57 def __init__(self, request):
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58 self.request = request # weakref.ref(request)
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59
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60 def write(self, data):
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61 f = self.request.get_wfile()
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62 self.write = f
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63 return self.write(data)
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64
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65
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66 class RequestHandler(object):
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67 def __init__(self, environ, start_response):
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68 self.__start_response = start_response
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69 self.__wfile = None
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70 self.headers = Headers(environ)
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71 self.rfile, self.wfile = None, Writer(self)
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72
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73 def start_response(self, headers, response_code):
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74 """Set HTTP response code"""
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75 message, explain = BaseHTTPRequestHandler.responses[response_code]
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76 self.__wfile = self.__start_response('%d %s' % (response_code,
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77 message), headers)
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78
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79 def get_wfile(self):
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80 if self.__wfile is None:
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81 raise ValueError('start_response() not called')
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82 return self.__wfile
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83
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84
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85 class RequestDispatcher(object):
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86 def __init__(self, home, debug=False, timing=False, lang=None,
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87 feature_flags=None):
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88 assert os.path.isdir(home), '%r is not a directory' % (home,)
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89 self.home = home
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90 self.debug = debug
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91 self.timing = timing
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92 self.feature_flags = feature_flags or {}
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93 self.tracker = None
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94 if lang:
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95 self.translator = TranslationService.get_translation(
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96 lang,
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97 tracker_home=home)
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98 else:
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99 self.translator = None
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100
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101 if "cache_tracker" in self.feature_flags:
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102 self.tracker = roundup.instance.open(self.home, not self.debug)
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103 else:
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104 self.preload()
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105
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106 def __call__(self, environ, start_response):
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107 """Initialize with `apache.Request` object"""
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108 request = RequestHandler(environ, start_response)
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109
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110 if environ['REQUEST_METHOD'] == 'OPTIONS':
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111 if environ["PATH_INFO"][:5] == "/rest":
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112 # rest does support options
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113 # This I hope will result in self.form=None
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114 environ['CONTENT_LENGTH'] = 0
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115 else:
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116 code = 501
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117 message, explain = BaseHTTPRequestHandler.responses[code]
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118 request.start_response([('Content-Type', 'text/html')],
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119 code)
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120 request.wfile.write(s2b(DEFAULT_ERROR_MESSAGE % locals()))
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121 return []
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122
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123 # need to strip the leading '/'
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124 environ["PATH_INFO"] = environ["PATH_INFO"][1:]
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125 if self.timing:
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126 environ["CGI_SHOW_TIMING"] = self.timing
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127
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128 if environ['REQUEST_METHOD'] in ("OPTIONS", "DELETE"):
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parents: 6083
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129 # these methods have no data. When we init tracker.Client
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parents: 6083
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130 # set form to None to get a properly initialized empty
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parents: 6083
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131 # form.
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6083
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132 form = None
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parents: 6083
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133 else:
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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134 form = BinaryFieldStorage(fp=environ['wsgi.input'], environ=environ)
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40f5b20d1e70 issue2551047: Fix crashes in DELETE, OPTIONS, PATCH
John Rouillard <rouilj@ieee.org>
parents: 5837
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135
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John Rouillard <rouilj@ieee.org>
parents: 6387
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136 if "cache_tracker" in self.feature_flags:
d32d43e4a5ba wsgi can cache tracker instance enabled by feature flag.
John Rouillard <rouilj@ieee.org>
parents: 6387
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137 client = self.tracker.Client(self.tracker, request, environ, form,
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07ce4e4110f5 flake8 fixes: whitespace, remove unused imports
John Rouillard <rouilj@ieee.org>
parents: 6747
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138 self.translator)
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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139 try:
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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140 client.main()
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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141 except roundup.cgi.client.NotFound:
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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142 request.start_response([('Content-Type', 'text/html')], 404)
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John Rouillard <rouilj@ieee.org>
parents: 6747
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143 request.wfile.write(s2b('Not found: %s' %
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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144 html_escape(client.path)))
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John Rouillard <rouilj@ieee.org>
parents: 6387
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145 else:
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John Rouillard <rouilj@ieee.org>
parents: 6387
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146 with self.get_tracker() as tracker:
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John Rouillard <rouilj@ieee.org>
parents: 6387
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147 client = tracker.Client(tracker, request, environ, form,
d32d43e4a5ba wsgi can cache tracker instance enabled by feature flag.
John Rouillard <rouilj@ieee.org>
parents: 6387
diff changeset
148 self.translator)
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John Rouillard <rouilj@ieee.org>
parents: 6387
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149 try:
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John Rouillard <rouilj@ieee.org>
parents: 6387
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150 client.main()
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John Rouillard <rouilj@ieee.org>
parents: 6387
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151 except roundup.cgi.client.NotFound:
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parents: 6387
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152 request.start_response([('Content-Type', 'text/html')], 404)
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parents: 6747
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153 request.wfile.write(s2b('Not found: %s' %
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John Rouillard <rouilj@ieee.org>
parents: 6387
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154 html_escape(client.path)))
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Richard Jones <richard@users.sourceforge.net>
parents:
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155
a2d22d0de0bc WSGI support via roundup.cgi.wsgi_handler
Richard Jones <richard@users.sourceforge.net>
parents:
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156 # all body data has been written using wfile
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Richard Jones <richard@users.sourceforge.net>
parents:
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157 return []
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Richard Jones <richard@users.sourceforge.net>
parents:
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158
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0343b6fea4b9 Factor preloading into a preload method
Ralf Schlatterbeck <rsc@runtux.com>
parents: 6321
diff changeset
159 def preload(self):
0343b6fea4b9 Factor preloading into a preload method
Ralf Schlatterbeck <rsc@runtux.com>
parents: 6321
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160 """ Trigger pre-loading of imports and templates """
0343b6fea4b9 Factor preloading into a preload method
Ralf Schlatterbeck <rsc@runtux.com>
parents: 6321
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161 with self.get_tracker():
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Ralf Schlatterbeck <rsc@runtux.com>
parents: 6321
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162 pass
0343b6fea4b9 Factor preloading into a preload method
Ralf Schlatterbeck <rsc@runtux.com>
parents: 6321
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163
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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164 @contextmanager
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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165 def get_tracker(self):
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
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166 # get a new instance for each request
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Christof Meerwald <cmeerw@cmeerw.org>
parents: 6061
diff changeset
167 yield roundup.instance.open(self.home, not self.debug)
Roundup Issue Tracker: http://roundup-tracker.org/