Python: Mechanize 无法将 Cookie 发送到第二个 URL

Question

我在尝试让 Mechanize 在请求第二个 URL 时保留由第一个请求的 URL 设置的 cookie 时遇到了严重的问题。为了测试是否发送了任何内容，我将以下文件放在我的服务器上 (cookies.php):

<?php
echo "cookies:::";
print_r($_COOKIE);
?>

以下是实现我的目标的python文件。我希望第一个站点设置的 cookie，我为测试而输出，也由我的 PHP 文件输出(也就是在第二个请求之前设置):

from BeautifulSoup import BeautifulSoup, BeautifulStoneSoup
import mechanize

from pprint import *

#

class NullCookieProcessor(mechanize.HTTPCookieProcessor):
    def http_request(self, request): return request
    def http_response(self, request, response): return response

opener = mechanize.build_opener(NullCookieProcessor)

request = mechanize.Request('http://www.google.com')
response = mechanize.urlopen(request)
cj = mechanize.CookieJar()
cj.extract_cookies(response, request)

pprint(cj)

request2 = mechanize.Request('http://[domain2].com/cookies.php')
cj.add_cookie_header(request2)
response2 = mechanize.urlopen(request2)

print response2.geturl()
print response2.info()  # headers
print response2.read()  # body (readline and readlines work too)

输出如下:

<mechanize._clientcookie.CookieJar[Cookie(version=0, name='NID', value='50=rkj1MMbufL7KRMj00TMF4rI4x7VNYgzWk5P97V05gBAMVOrYuSbb6-hpXVC3y_eD999uECgnBn7YqZ-ZGB1kmWhc_wQWV9nKlPER4_3BWEVSGU632vXEhgYROAz3QrP5', port=None, port_specified=False, domain='.google.com', domain_specified=True, domain_initial_dot=True, path='/', path_specified=True, secure=False, expires=1331337059, discard=False, comment=None, comment_url=None, rest={'HttpOnly': None}, rfc2109=False), Cookie(version=0, name='PREF', value='ID=20342e7c6a6b8f8b:FF=0:TM=1315525859:LM=1315525859:S=RppxtfAGwVsGkZiJ', port=None, port_specified=False, domain='.google.com', domain_specified=True, domain_initial_dot=True, path='/', path_specified=True, secure=False, expires=1378597859, discard=False, comment=None, comment_url=None, rest={}, rfc2109=False)]>
http://[MY DOMAIN].com/cookies.php
Date: Thu, 08 Sep 2011 23:51:01 GMT
Server: Apache mod_fcgid/2.3.6 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635
X-Powered-By: PHP/5.2.17
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html

cookies:::Array
(
)

有什么想法可以让它发挥作用吗？需要注意的是，上面的代码是从文档中复制粘贴的...，我也尝试了文档提供的其他示例代码，可以在这里找到:http://wwwsearch.sourceforge.net/mechanize/doc.html

Answer 1

request1 和 request2 来自不同的域。可以理解的是，来自 google.com 的 cookie 不会发送到 '[domain2].com'。