annotate roundup/cgi/wsgi_handler.py @ 5409:277e91bf7936

Python 3 preparation: update BaseHTTPServer imports. roundup/anypy/http_.py extended and used in more places. Manual patch.
author Joseph Myers <jsm@polyomino.org.uk>
date Wed, 25 Jul 2018 00:17:07 +0000
parents 35ea9b1efc14
children 3a07c57d72bb
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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 cgi
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9 import weakref
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10
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11 import roundup.instance
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12 from roundup.cgi import TranslationService
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13 from roundup.anypy import http_
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14 BaseHTTPRequestHandler = http_.server.BaseHTTPRequestHandler
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15 DEFAULT_ERROR_MESSAGE = http_.server.DEFAULT_ERROR_MESSAGE
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16
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17
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18 class Writer(object):
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19 '''Perform a start_response if need be when we start writing.'''
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20 def __init__(self, request):
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21 self.request = request #weakref.ref(request)
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22 def write(self, data):
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23 f = self.request.get_wfile()
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24 self.write = f
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25 return f(data)
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26
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27 class RequestDispatcher(object):
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28 def __init__(self, home, debug=False, timing=False, lang=None):
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29 assert os.path.isdir(home), '%r is not a directory'%(home,)
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30 self.home = home
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31 self.debug = debug
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32 self.timing = timing
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33 if lang:
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34 self.translator = TranslationService.get_translation(lang,
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35 tracker_home=home)
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36 else:
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37 self.translator = None
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38
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39 def __call__(self, environ, start_response):
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40 """Initialize with `apache.Request` object"""
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41 self.environ = environ
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42 request = RequestDispatcher(self.home, self.debug, self.timing)
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43 request.__start_response = start_response
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44
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45 request.wfile = Writer(request)
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46 request.__wfile = None
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47
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48 if environ ['REQUEST_METHOD'] == 'OPTIONS':
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49 code = 501
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50 message, explain = BaseHTTPRequestHandler.responses[code]
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51 request.start_response([('Content-Type', 'text/html'),
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52 ('Connection', 'close')], code)
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53 request.wfile.write(DEFAULT_ERROR_MESSAGE % locals())
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54 return []
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55
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56 tracker = roundup.instance.open(self.home, not self.debug)
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57
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58 # need to strip the leading '/'
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59 environ["PATH_INFO"] = environ["PATH_INFO"][1:]
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60 if request.timing:
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61 environ["CGI_SHOW_TIMING"] = request.timing
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62
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63 form = cgi.FieldStorage(fp=environ['wsgi.input'], environ=environ)
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64
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65 client = tracker.Client(tracker, request, environ, form,
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66 request.translator)
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67 try:
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68 client.main()
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69 except roundup.cgi.client.NotFound:
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70 request.start_response([('Content-Type', 'text/html')], 404)
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71 request.wfile.write('Not found: %s'%client.path)
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72
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73 # all body data has been written using wfile
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74 return []
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75
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76 def start_response(self, headers, response_code):
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77 """Set HTTP response code"""
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78 message, explain = BaseHTTPRequestHandler.responses[response_code]
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79 self.__wfile = self.__start_response('%d %s'%(response_code,
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80 message), headers)
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81
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82 def get_wfile(self):
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83 if self.__wfile is None:
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84 raise ValueError('start_response() not called')
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85 return self.__wfile
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86

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