mercurial/urllibcompat.py
author Pierre-Yves David <pierre-yves.david@octobus.net>
Tue, 21 Sep 2021 21:18:44 +0200
branchstable
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child 48875 6000f5b25c9b
permissions -rw-r--r--
test: enable share-safe in test-persistent-nodemap We will use some share in this test and I would rather have them safe. Differential Revision: https://phab.mercurial-scm.org/D11480
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# urllibcompat.py - adapters to ease using urllib2 on Py2 and urllib on Py3
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#
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# Copyright 2017 Google, Inc.
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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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from __future__ import absolute_import
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from .pycompat import getattr
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from . import pycompat
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_sysstr = pycompat.sysstr
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class _pycompatstub(object):
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    def __init__(self):
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        self._aliases = {}
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    def _registeraliases(self, origin, items):
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        """Add items that will be populated at the first access"""
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        items = map(_sysstr, items)
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        self._aliases.update(
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            (item.replace('_', '').lower(), (origin, item)) for item in items
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        )
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    def _registeralias(self, origin, attr, name):
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        """Alias ``origin``.``attr`` as ``name``"""
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        self._aliases[_sysstr(name)] = (origin, _sysstr(attr))
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    def __getattr__(self, name):
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        try:
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            origin, item = self._aliases[name]
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        except KeyError:
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            raise AttributeError(name)
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        self.__dict__[name] = obj = getattr(origin, item)
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        return obj
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httpserver = _pycompatstub()
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urlreq = _pycompatstub()
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urlerr = _pycompatstub()
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if pycompat.ispy3:
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    import urllib.parse
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    urlreq._registeraliases(
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        urllib.parse,
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        (
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            b"splitattr",
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            b"splitpasswd",
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            b"splitport",
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            b"splituser",
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            b"urlparse",
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            b"urlunparse",
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        ),
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    )
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    urlreq._registeralias(urllib.parse, b"parse_qs", b"parseqs")
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    urlreq._registeralias(urllib.parse, b"parse_qsl", b"parseqsl")
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    urlreq._registeralias(urllib.parse, b"unquote_to_bytes", b"unquote")
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    import urllib.request
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    urlreq._registeraliases(
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        urllib.request,
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        (
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            b"AbstractHTTPHandler",
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            b"BaseHandler",
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            b"build_opener",
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            b"FileHandler",
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            b"FTPHandler",
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            b"ftpwrapper",
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            b"HTTPHandler",
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            b"HTTPSHandler",
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            b"install_opener",
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            b"pathname2url",
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            b"HTTPBasicAuthHandler",
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            b"HTTPDigestAuthHandler",
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            b"HTTPPasswordMgrWithDefaultRealm",
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            b"ProxyHandler",
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            b"Request",
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            b"url2pathname",
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            b"urlopen",
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        ),
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    )
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    import urllib.response
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    urlreq._registeraliases(
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        urllib.response,
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        (
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            b"addclosehook",
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            b"addinfourl",
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        ),
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    )
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    import urllib.error
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    urlerr._registeraliases(
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        urllib.error,
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        (
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            b"HTTPError",
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            b"URLError",
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        ),
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    )
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    import http.server
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    httpserver._registeraliases(
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        http.server,
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        (
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            b"HTTPServer",
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            b"BaseHTTPRequestHandler",
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            b"SimpleHTTPRequestHandler",
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            b"CGIHTTPRequestHandler",
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        ),
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    )
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    # urllib.parse.quote() accepts both str and bytes, decodes bytes
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    # (if necessary), and returns str. This is wonky. We provide a custom
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    # implementation that only accepts bytes and emits bytes.
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    def quote(s, safe='/'):
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        # bytestr has an __iter__ that emits characters. quote_from_bytes()
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        # does an iteration and expects ints. We coerce to bytes to appease it.
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        if isinstance(s, pycompat.bytestr):
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            s = bytes(s)
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        s = urllib.parse.quote_from_bytes(s, safe=safe)
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        return s.encode('ascii', 'strict')
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    # urllib.parse.urlencode() returns str. We use this function to make
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    # sure we return bytes.
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    def urlencode(query, doseq=False):
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        s = urllib.parse.urlencode(query, doseq=doseq)
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        return s.encode('ascii')
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    urlreq.quote = quote
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    urlreq.urlencode = urlencode
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    def getfullurl(req):
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        return req.full_url
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    def gethost(req):
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        return req.host
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    def getselector(req):
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        return req.selector
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    def getdata(req):
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        return req.data
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    def hasdata(req):
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        return req.data is not None
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else:
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    # pytype: disable=import-error
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    import BaseHTTPServer
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    import CGIHTTPServer
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    import SimpleHTTPServer
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    import urllib2
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    import urllib
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    import urlparse
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    # pytype: enable=import-error
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    urlreq._registeraliases(
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        urllib,
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        (
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            b"addclosehook",
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            b"addinfourl",
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            b"ftpwrapper",
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            b"pathname2url",
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            b"quote",
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            b"splitattr",
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            b"splitpasswd",
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            b"splitport",
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            b"splituser",
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            b"unquote",
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            b"url2pathname",
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            b"urlencode",
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        ),
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    )
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    urlreq._registeraliases(
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        urllib2,
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        (
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            b"AbstractHTTPHandler",
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            b"BaseHandler",
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            b"build_opener",
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            b"FileHandler",
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            b"FTPHandler",
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            b"HTTPBasicAuthHandler",
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            b"HTTPDigestAuthHandler",
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            b"HTTPHandler",
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            b"HTTPPasswordMgrWithDefaultRealm",
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            b"HTTPSHandler",
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            b"install_opener",
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            b"ProxyHandler",
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            b"Request",
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            b"urlopen",
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        ),
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    )
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    urlreq._registeraliases(
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        urlparse,
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        (
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            b"urlparse",
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            b"urlunparse",
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        ),
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    )
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    urlreq._registeralias(urlparse, b"parse_qs", b"parseqs")
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    urlreq._registeralias(urlparse, b"parse_qsl", b"parseqsl")
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    urlerr._registeraliases(
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        urllib2,
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        (
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            b"HTTPError",
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            b"URLError",
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        ),
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    )
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    httpserver._registeraliases(
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        BaseHTTPServer,
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        (
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            b"HTTPServer",
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            b"BaseHTTPRequestHandler",
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        ),
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    )
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    httpserver._registeraliases(
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        SimpleHTTPServer, (b"SimpleHTTPRequestHandler",)
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    )
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    httpserver._registeraliases(CGIHTTPServer, (b"CGIHTTPRequestHandler",))
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    def gethost(req):
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        return req.get_host()
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    def getselector(req):
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        return req.get_selector()
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    def getfullurl(req):
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        return req.get_full_url()
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    def getdata(req):
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        return req.get_data()
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    def hasdata(req):
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        return req.has_data()