root/galaxy-central/eggs/twill-0.9-py2.6.egg/twill/other_packages/_mechanize_dist/_request.py

リビジョン 3, 3.2 KB (コミッタ: kohda, 14 年 前)

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1"""Integration with Python standard library module urllib2: Request class.
2
3Copyright 2004-2006 John J Lee <jjl@pobox.com>
4
5This code is free software; you can redistribute it and/or modify it
6under the terms of the BSD or ZPL 2.1 licenses (see the file
7COPYING.txt included with the distribution).
8
9"""
10
11import urllib2, urllib, logging
12
13from _clientcookie import request_host
14import _rfc3986
15
16warn = logging.getLogger("mechanize").warning
17# don't complain about missing logging handler
18logging.getLogger("mechanize").setLevel(logging.ERROR)
19
20
21class Request(urllib2.Request):
22    def __init__(self, url, data=None, headers={},
23                 origin_req_host=None, unverifiable=False, visit=None):
24        # In mechanize 0.2, the interpretation of a unicode url argument will
25        # change: A unicode url argument will be interpreted as an IRI, and a
26        # bytestring as a URI. For now, we accept unicode or bytestring.  We
27        # don't insist that the value is always a URI (specifically, must only
28        # contain characters which are legal), because that might break working
29        # code (who knows what bytes some servers want to see, especially with
30        # browser plugins for internationalised URIs).
31        if not _rfc3986.is_clean_uri(url):
32            warn("url argument is not a URI "
33                 "(contains illegal characters) %r" % url)
34        urllib2.Request.__init__(self, url, data, headers)
35        self.selector = None
36        self.unredirected_hdrs = {}
37        self.visit = visit
38
39        # All the terminology below comes from RFC 2965.
40        self.unverifiable = unverifiable
41        # Set request-host of origin transaction.
42        # The origin request-host is needed in order to decide whether
43        # unverifiable sub-requests (automatic redirects, images embedded
44        # in HTML, etc.) are to third-party hosts.  If they are, the
45        # resulting transactions might need to be conducted with cookies
46        # turned off.
47        if origin_req_host is None:
48            origin_req_host = request_host(self)
49        self.origin_req_host = origin_req_host
50
51    def get_selector(self):
52        return urllib.splittag(self.__r_host)[0]
53
54    def get_origin_req_host(self):
55        return self.origin_req_host
56
57    def is_unverifiable(self):
58        return self.unverifiable
59
60    def add_unredirected_header(self, key, val):
61        """Add a header that will not be added to a redirected request."""
62        self.unredirected_hdrs[key.capitalize()] = val
63
64    def has_header(self, header_name):
65        """True iff request has named header (regular or unredirected)."""
66        return (header_name in self.headers or
67                header_name in self.unredirected_hdrs)
68
69    def get_header(self, header_name, default=None):
70        return self.headers.get(
71            header_name,
72            self.unredirected_hdrs.get(header_name, default))
73
74    def header_items(self):
75        hdrs = self.unredirected_hdrs.copy()
76        hdrs.update(self.headers)
77        return hdrs.items()
78
79    def __str__(self):
80        return "<Request for %s>" % self.get_full_url()
81
82    def get_method(self):
83        if self.has_data():
84            return "POST"
85        else:
86            return "GET"
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