author | Nishanth Amuluru <nishanth@fossee.in> |
Sat, 08 Jan 2011 11:20:57 +0530 | |
changeset 69 | c6bca38c1cbf |
permissions | -rw-r--r-- |
69
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1 |
# hgweb/request.py - An http request from either CGI or the standalone server. |
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2 |
# |
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# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> |
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# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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8 |
|
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9 |
import socket, cgi, errno |
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10 |
from mercurial import util |
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from common import ErrorResponse, statusmessage, HTTP_NOT_MODIFIED |
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12 |
|
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13 |
shortcuts = { |
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'cl': [('cmd', ['changelog']), ('rev', None)], |
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'sl': [('cmd', ['shortlog']), ('rev', None)], |
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'cs': [('cmd', ['changeset']), ('node', None)], |
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'f': [('cmd', ['file']), ('filenode', None)], |
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'fl': [('cmd', ['filelog']), ('filenode', None)], |
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'fd': [('cmd', ['filediff']), ('node', None)], |
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'fa': [('cmd', ['annotate']), ('filenode', None)], |
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'mf': [('cmd', ['manifest']), ('manifest', None)], |
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'ca': [('cmd', ['archive']), ('node', None)], |
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'tags': [('cmd', ['tags'])], |
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'tip': [('cmd', ['changeset']), ('node', ['tip'])], |
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'static': [('cmd', ['static']), ('file', None)] |
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} |
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|
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def normalize(form): |
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# first expand the shortcuts |
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for k in shortcuts.iterkeys(): |
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if k in form: |
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for name, value in shortcuts[k]: |
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if value is None: |
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value = form[k] |
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form[name] = value |
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del form[k] |
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# And strip the values |
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for k, v in form.iteritems(): |
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form[k] = [i.strip() for i in v] |
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return form |
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|
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class wsgirequest(object): |
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def __init__(self, wsgienv, start_response): |
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version = wsgienv['wsgi.version'] |
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if (version < (1, 0)) or (version >= (2, 0)): |
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raise RuntimeError("Unknown and unsupported WSGI version %d.%d" |
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% version) |
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self.inp = wsgienv['wsgi.input'] |
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self.err = wsgienv['wsgi.errors'] |
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self.threaded = wsgienv['wsgi.multithread'] |
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self.multiprocess = wsgienv['wsgi.multiprocess'] |
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self.run_once = wsgienv['wsgi.run_once'] |
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self.env = wsgienv |
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self.form = normalize(cgi.parse(self.inp, |
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self.env, |
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keep_blank_values=1)) |
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self._start_response = start_response |
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self.server_write = None |
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self.headers = [] |
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60 |
|
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def __iter__(self): |
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return iter([]) |
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|
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def read(self, count=-1): |
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return self.inp.read(count) |
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66 |
|
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def drain(self): |
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'''need to read all data from request, httplib is half-duplex''' |
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length = int(self.env.get('CONTENT_LENGTH', 0)) |
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for s in util.filechunkiter(self.inp, limit=length): |
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pass |
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72 |
|
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73 |
def respond(self, status, type=None, filename=None, length=0): |
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if self._start_response is not None: |
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75 |
|
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self.httphdr(type, filename, length) |
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if not self.headers: |
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raise RuntimeError("request.write called before headers sent") |
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79 |
|
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for k, v in self.headers: |
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81 |
if not isinstance(v, str): |
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raise TypeError('header value must be string: %r' % v) |
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83 |
|
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84 |
if isinstance(status, ErrorResponse): |
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self.header(status.headers) |
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86 |
if status.code == HTTP_NOT_MODIFIED: |
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87 |
# RFC 2616 Section 10.3.5: 304 Not Modified has cases where |
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88 |
# it MUST NOT include any headers other than these and no |
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89 |
# body |
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self.headers = [(k, v) for (k, v) in self.headers if |
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k in ('Date', 'ETag', 'Expires', |
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92 |
'Cache-Control', 'Vary')] |
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93 |
status = statusmessage(status.code, status.message) |
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94 |
elif status == 200: |
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95 |
status = '200 Script output follows' |
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96 |
elif isinstance(status, int): |
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97 |
status = statusmessage(status) |
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98 |
|
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99 |
self.server_write = self._start_response(status, self.headers) |
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100 |
self._start_response = None |
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101 |
self.headers = [] |
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102 |
|
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103 |
def write(self, thing): |
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104 |
if hasattr(thing, "__iter__"): |
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105 |
for part in thing: |
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106 |
self.write(part) |
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107 |
else: |
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108 |
thing = str(thing) |
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109 |
try: |
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110 |
self.server_write(thing) |
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111 |
except socket.error, inst: |
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112 |
if inst[0] != errno.ECONNRESET: |
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113 |
raise |
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114 |
|
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115 |
def writelines(self, lines): |
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for line in lines: |
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self.write(line) |
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118 |
|
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def flush(self): |
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return None |
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121 |
|
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def close(self): |
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return None |
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124 |
|
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def header(self, headers=[('Content-Type','text/html')]): |
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self.headers.extend(headers) |
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127 |
|
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def httphdr(self, type=None, filename=None, length=0, headers={}): |
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headers = headers.items() |
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if type is not None: |
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headers.append(('Content-Type', type)) |
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if filename: |
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filename = (filename.split('/')[-1] |
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.replace('\\', '\\\\').replace('"', '\\"')) |
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headers.append(('Content-Disposition', |
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'inline; filename="%s"' % filename)) |
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if length: |
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headers.append(('Content-Length', str(length))) |
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self.header(headers) |
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140 |
|
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def wsgiapplication(app_maker): |
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'''For compatibility with old CGI scripts. A plain hgweb() or hgwebdir() |
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can and should now be used as a WSGI application.''' |
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application = app_maker() |
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def run_wsgi(env, respond): |
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return application(env, respond) |
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return run_wsgi |