Mercurial > p > roundup > code
annotate roundup/cgi/wsgi_handler.py @ 3896:fca0365521fc
ignore client shutdown exceptions when sending responses
patch from Ulrik Miaelsson
If the user clicks the stop button, or click another link before
the previous has finished loading, or something similar an IOError
exception will be raised which results in the admin being sent an
email.
This can understandably be pretty annoying if your users are
doing that on a regular basis. So we'll trap that exception
and ignore it.
| author | Justus Pendleton <jpend@users.sourceforge.net> |
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| date | Tue, 11 Sep 2007 21:30:14 +0000 |
| parents | a2d22d0de0bc |
| children | 0728808fdf5c |
| rev | line source |
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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 BaseHTTPServer import BaseHTTPRequestHandler |
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14 |
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15 |
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16 class Writer(object): |
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17 '''Perform a start_response if need be when we start writing.''' |
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18 def __init__(self, request): |
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19 self.request = request #weakref.ref(request) |
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20 def write(self, data): |
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21 f = self.request.get_wfile() |
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22 self.write = f |
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23 return f(data) |
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24 |
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25 class RequestDispatcher(object): |
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26 def __init__(self, home, debug=False, timing=False, lang=None): |
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27 assert os.path.isdir(home), '%r is not a directory'%(home,) |
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28 self.home = home |
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29 self.debug = debug |
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30 self.timing = timing |
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31 if lang: |
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32 self.translator = TranslationService.get_translation(lang, |
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33 tracker_home=home) |
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34 else: |
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35 self.translator = None |
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36 |
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37 def __call__(self, environ, start_response): |
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38 """Initialize with `apache.Request` object""" |
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39 self.environ = environ |
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40 self.__start_response = start_response |
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41 |
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42 self.wfile = Writer(self) |
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43 self.__wfile = None |
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44 |
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45 tracker = roundup.instance.open(self.home, not self.debug) |
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46 |
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47 # need to strip the leading '/' |
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48 environ["PATH_INFO"] = environ["PATH_INFO"][1:] |
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49 if self.timing: |
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50 environ["CGI_SHOW_TIMING"] = self.timing |
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51 |
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52 form = cgi.FieldStorage(fp=environ['wsgi.input'], environ=environ) |
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53 |
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54 client = tracker.Client(tracker, self, environ, form, |
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55 self.translator) |
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56 try: |
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57 client.main() |
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58 except roundup.cgi.client.NotFound: |
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59 self.start_response([('Content-Type', 'text/html')], 404) |
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60 self.wfile.write('Not found: %s'%client.path) |
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61 |
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62 # all body data has been written using wfile |
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63 return [] |
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64 |
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65 def start_response(self, headers, response_code): |
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66 """Set HTTP response code""" |
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67 description = BaseHTTPRequestHandler.responses[response_code] |
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68 self.__wfile = self.__start_response('%d %s'%(response_code, |
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69 description), headers) |
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70 |
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71 def get_wfile(self): |
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72 if self.__wfile is None: |
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73 raise ValueError, 'start_response() not called' |
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74 return self.__wfile |
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75 |
