mercurial/hgweb/request.py
author David Soria Parra <davidsp@fb.com>
Tue, 14 Oct 2014 20:35:17 -0700
changeset 22977 29ae3b190ec5
parent 18352 e33b9b92a200
child 25660 328739ea70c3
permissions -rw-r--r--
histedit: use state object where necessary We are using the properties from the state object where necessary and ensure that the state is set correctly.
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# hgweb/request.py - An http request from either CGI or the standalone server.
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#
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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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import socket, cgi, errno
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from mercurial import util
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from common import ErrorResponse, statusmessage, HTTP_NOT_MODIFIED
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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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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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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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    def __iter__(self):
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        return iter([])
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    def read(self, count=-1):
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        return self.inp.read(count)
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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') or 0)
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        for s in util.filechunkiter(self.inp, limit=length):
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            pass
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    def respond(self, status, type, filename=None, body=None):
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        if self._start_response is not None:
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            self.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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                self.headers.append(('Content-Disposition',
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                                     'inline; filename="%s"' % filename))
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            if body is not None:
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                self.headers.append(('Content-Length', str(len(body))))
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            for k, v in self.headers:
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                if not isinstance(v, str):
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                    raise TypeError('header value must be string: %r' % (v,))
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            if isinstance(status, ErrorResponse):
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                self.headers.extend(status.headers)
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                if status.code == HTTP_NOT_MODIFIED:
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                    # RFC 2616 Section 10.3.5: 304 Not Modified has cases where
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                    # it MUST NOT include any headers other than these and no
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                    # 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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                                          'Cache-Control', 'Vary')]
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                status = statusmessage(status.code, status.message)
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            elif status == 200:
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                status = '200 Script output follows'
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            elif isinstance(status, int):
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                status = statusmessage(status)
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            self.server_write = self._start_response(status, self.headers)
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            self._start_response = None
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            self.headers = []
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        if body is not None:
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            self.write(body)
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            self.server_write = None
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    def write(self, thing):
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        if thing:
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            try:
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                self.server_write(thing)
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            except socket.error, inst:
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                if inst[0] != errno.ECONNRESET:
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                    raise
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    def writelines(self, lines):
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        for line in lines:
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            self.write(line)
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    def flush(self):
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        return None
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    def close(self):
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        return None
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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