Mercurial > hg
annotate mercurial/hgweb/wsgicgi.py @ 51630:513597087b89
branching: merge stable into default
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 10 Jun 2024 12:12:56 +0200 |
parents | 32c13716147e |
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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 of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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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 |
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12 from .. import encoding, pycompat |
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13 |
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14 from ..utils import procutil |
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15 |
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16 from . import common |
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17 |
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18 |
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19 def launch(application): |
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20 procutil.setbinary(procutil.stdin) |
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21 procutil.setbinary(procutil.stdout) |
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22 |
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23 environ = { |
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24 k.decode('iso8859-1'): v.decode('iso8859-1') |
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25 for k, v in encoding.environ.items() |
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26 } # re-exports |
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27 environ.setdefault('PATH_INFO', '') |
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28 if environ.get('SERVER_SOFTWARE', '').startswith('Microsoft-IIS'): |
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29 # IIS includes script_name in PATH_INFO |
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30 scriptname = environ['SCRIPT_NAME'] |
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31 if environ['PATH_INFO'].startswith(scriptname): |
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32 environ['PATH_INFO'] = environ['PATH_INFO'][len(scriptname) :] |
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33 |
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34 stdin = procutil.stdin |
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35 if environ.get('HTTP_EXPECT', '').lower() == '100-continue': |
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36 stdin = common.continuereader(stdin, procutil.stdout.write) |
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37 |
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38 environ['wsgi.input'] = stdin |
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39 environ['wsgi.errors'] = procutil.stderr |
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40 environ['wsgi.version'] = (1, 0) |
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41 environ['wsgi.multithread'] = False |
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42 environ['wsgi.multiprocess'] = True |
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43 environ['wsgi.run_once'] = True |
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44 |
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45 if environ.get('HTTPS', 'off').lower() in ('on', '1', 'yes'): |
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46 environ['wsgi.url_scheme'] = 'https' |
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47 else: |
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48 environ['wsgi.url_scheme'] = 'http' |
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49 |
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50 headers_set = [] |
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51 headers_sent = [] |
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52 out = procutil.stdout |
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53 |
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54 def write(data): |
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55 if not headers_set: |
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56 raise AssertionError(b"write() before start_response()") |
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57 |
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58 elif not headers_sent: |
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59 # Before the first output, send the stored headers |
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60 status, response_headers = headers_sent[:] = headers_set |
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61 out.write(b'Status: %s\r\n' % pycompat.bytesurl(status)) |
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62 for hk, hv in response_headers: |
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63 out.write( |
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64 b'%s: %s\r\n' |
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65 % (pycompat.bytesurl(hk), pycompat.bytesurl(hv)) |
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66 ) |
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67 out.write(b'\r\n') |
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68 |
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69 out.write(data) |
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70 out.flush() |
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71 |
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72 def start_response(status, response_headers, exc_info=None): |
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73 if exc_info: |
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74 try: |
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75 if headers_sent: |
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76 # Re-raise original exception if headers sent |
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77 raise exc_info[0](exc_info[1], exc_info[2]) |
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78 finally: |
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79 del exc_info # avoid dangling circular ref |
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80 elif headers_set: |
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81 raise AssertionError(b"Headers already set!") |
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82 |
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83 headers_set[:] = [status, response_headers] |
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84 return write |
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85 |
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86 content = application(environ, start_response) |
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87 try: |
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88 for chunk in content: |
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89 write(chunk) |
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90 if not headers_sent: |
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91 write(b'') # send headers now if body was empty |
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92 finally: |
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93 getattr(content, 'close', lambda: None)() |