Mercurial > hg > mercurial-crew-with-dirclash

annotate mercurial/hgweb/wsgicgi.py @ 2569:2264b2b077a1

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run-tests.py: make tests use same python interpreter as test harness. this is wanted because some tests run python interpreter directly. must use same python interpreter in tests as in main harness or problems will happen because of e.g. different python abi if run-tests.py run with python 2.5 but system python is 2.4. fix is to see if system python is used and is named python. if no, put symlink called python at front of shell search path.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Thu, 06 Jul 2006 10:09:24 -0700
parents 1120302009d7
children eb0b4a2d70a9
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2506
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1 # hgweb/wsgicgi.py - CGI->WSGI translator
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2 #
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3 # Copyright 2006 Eric Hopper <hopper@omnifarious.org>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7 #
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8 # This was originally copied from the public domain code at
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9 # http://www.python.org/dev/peps/pep-0333/#the-server-gateway-side
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10
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11 import os, sys
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12
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13 def launch(application):
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14
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15 environ = dict(os.environ.items())
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16 environ['wsgi.input'] = sys.stdin
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17 environ['wsgi.errors'] = sys.stderr
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18 environ['wsgi.version'] = (1,0)
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19 environ['wsgi.multithread'] = False
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20 environ['wsgi.multiprocess'] = True
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21 environ['wsgi.run_once'] = True
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22
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23 if environ.get('HTTPS','off') in ('on','1'):
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24 environ['wsgi.url_scheme'] = 'https'
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25 else:
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26 environ['wsgi.url_scheme'] = 'http'
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27
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28 headers_set = []
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29 headers_sent = []
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30 out = sys.stdout
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31
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32 def write(data):
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33 if not headers_set:
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34 raise AssertionError("write() before start_response()")
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35
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36 elif not headers_sent:
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37 # Before the first output, send the stored headers
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38 status, response_headers = headers_sent[:] = headers_set
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39 out.write('Status: %s\r\n' % status)
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40 for header in response_headers:
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41 out.write('%s: %s\r\n' % header)
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42 out.write('\r\n')
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43
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44 out.write(data)
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45 out.flush()
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46
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47 def start_response(status,response_headers,exc_info=None):
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48 if exc_info:
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49 try:
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50 if headers_sent:
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51 # Re-raise original exception if headers sent
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52 raise exc_info[0], exc_info[1], exc_info[2]
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53 finally:
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54 exc_info = None # avoid dangling circular ref
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55 elif headers_set:
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56 raise AssertionError("Headers already set!")
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57
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58 headers_set[:] = [status,response_headers]
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59 return write
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60
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61 result = application(environ, start_response)
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62 try:
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63 for data in result:
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64 if data: # don't send headers until body appears
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65 write(data)
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66 if not headers_sent:
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67 write('') # send headers now if body was empty
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68 finally:
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69 if hasattr(result,'close'):
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70 result.close()