blocks|key|1153088|text|这不是应用程序引擎或python特定的。你需要熟悉如何发布和工作。当您登录到一个典型的网站时，您的浏览器将向web服务器发送一篇文章，其中包含一组参数。通过查看有关网页的源并查找登录表单，您可以看到调用了哪些参数。一旦您知道了参数的名称，您可以将它们包括在您的文章到网站。然后，网站将返回一个cookie，通常存储在浏览器中。由于您试图模拟浏览器，因此您需要自己存储此cookie，并在尝试从该特定站点请求更多页面时将其发送出去。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1153089|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

This is not app engine or python specific. You need to get familiar with how POST and GET work. When you log into a typical web site, your browser is sending a POST to the web server, with a bunch of parameters. You can see what the parameters are called by viewing the source of the web page in question, and looking for the login form. Once you know the names of the parameters, you can include them in your POST to the web site. The web site will then return back a cookie, that would normally be stored in your browser. Since you are trying to simulate a browser, you would need to store this cookie yourself, and send it along when you try to request further pages from that particular site.

blocks|key|1153093|text|我不确定我是否理解你的问题，但是如果你想要GET参数，使用webapp，它会是这样的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1153094|login+=+self.request.get('login')
password+=+self.request.get('password')|code-block|syntax|javascript|1153095|更多有关处理表格的资料可在此查阅。|offset|length|1153096|如果您想要一种快速验证用户身份的方法，也应该尝试用户服务。|1153097|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/appengine/docs/python/gettingstarted/handlingforms.html|1|http://code.google.com/appengine/docs/python/gettingstarted/usingusers.html^0|0|0|2|F|0|0|O|4|1|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@$I|Z|J|10|1|11]]|A|$]]|$1|K|3|L|5|6|7|12|8|@]|9|@$I|13|J|14|1|15]]|A|$]]|$1|M|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]|U|$5|P|Q|R|A|$S|V]]]]

I am not sure if I understood your question, but if you want the GET parameters, with webapp, it would be something like this:

<pre><code>login = self.request.get('login')
password = self.request.get('password')
</code></pre>

More <a href="http://code.google.com/appengine/docs/python/gettingstarted/handlingforms.html" rel="nofollow noreferrer">information on dealing with forms is available here</a>

You should also try the <a href="http://code.google.com/appengine/docs/python/gettingstarted/usingusers.html" rel="nofollow noreferrer">user service</a> if want a quick way to authenticate your users.

blocks|key|1248314|text|有两种方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1248315|正如我告诉您的，使用斜纹或机械化，因为斜纹只是一个简单的机械包装，你可以只使用机械化(http://wwwsearch.sourceforge.net/mechanize/)，但要使用机械化，你可能需要做一些黑客，请参阅将机械化模块导入python脚本获得更多细节。|ordered-list-item|offset|length|1248316|做的时候要努力学习一些东西，让我们看看如何登录雅虎。|1248317|(+a)查看页面(verify2?&.src=ym)，看看表单是什么样子的，您可以使用防火墙来检查，而不是查看原始的html。|1248318|(+b)表单有登录和密码两个字段，再加上一些更多的隐藏字段让我们暂时忽略它们，所以到目前为止我们有表单动作url=+"https://login.yahoo.com/config/login?“form_data+={‘登录’：'my_login'，'passwd‘：'my_passwd'}|1248319|(+c)我们可以将上述数据发布到正确的post+url，并且它可能会正常工作，但通常我们需要转到其他页面，如果我们没有cookie，它将再次请求登录。因此，让我们使用一个曲奇罐。|1248320|jar+=+cookielib.CookieJar()
opener+=+urllib2.build_opener(urllib2.HTTPCookieProcessor(jar))
form_data+=+urllib.urlencode(form_data)
#+data+returned+from+this+pages+contains+redirection
resp+=+opener.open(url,+form_data)|code-block|syntax|javascript|1248321|(+d)现在，从yahoo的页面重定向到其他页面，例如，如果我想查看邮件页面，我现在将转到它，cookie将负责身份验证。|1248322|resp+=+opener.open('http://mail.yahoo.com')
print+resp.read()|1248323|如果你看到打印出来，上面写着，“xxxx\+logout，嗯.你的浏览器不受官方支持。”这意味着它已经登录了:)，但是由于yahoo+mail是一个ajax页面，并且不支持我的简单脚本浏览器，我们可以通过欺骗浏览器类型来绕过这个工具，并且可以做很多事情。|1248324|这是最后的代码|1248325|import+urllib,+urllib2,+cookielib

url+=+"https://login.yahoo.com/config/login?"
form_data+=+{'login'+:+'your-login',+'passwd'+:+'your-pass'}

jar+=+cookielib.CookieJar()
opener+=+urllib2.build_opener(urllib2.HTTPCookieProcessor(jar))
form_data+=+urllib.urlencode(form_data)
#+data+returned+from+this+pages+contains+redirection
resp+=+opener.open(url,+form_data)
#+yahoo+redirects+to+http://my.yahoo.com,+so+lets+go+there+insetad
resp+=+opener.open('http://mail.yahoo.com')
print+resp.read()|1248326|您应该查看机械代码或类似于此example.py的链接，以了解它们是如何实现的。|1248327|我们可以把这些数据|1248328|entityMap|0|LINK|mutability|MUTABLE|url|http://wwwsearch.sourceforge.net/mechanize/|1|https://stackoverflow.com/questions/275980/import-mechanize-module-to-python-script|2|https://login.yahoo.com/config/login_verify2?&.src=ym|3|https://login.yahoo.com/config/login|4|http://www.voidspace.org.uk/cgi-bin/voidspace/downman.py?file=cookielib_example.py^0|0|17|17|0|32|G|1|0|0|9|G|2|0|1N|10|3|0|0|0|0|0|0|0|0|E|A|4|0|0^^$0|@$1|2|3|4|5|6|7|1N|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1O|8|@]|9|@$E|1P|F|1Q|1|1R]|$E|1S|F|1T|1|1U]]|A|$]]|$1|G|3|H|5|D|7|1V|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|1W|8|@]|9|@$E|1X|F|1Y|1|1Z]]|A|$]]|$1|K|3|L|5|6|7|20|8|@]|9|@$E|21|F|22|1|23]]|A|$]]|$1|M|3|N|5|6|7|24|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|25|8|@]|9|@]|A|$R|S]]|$1|T|3|U|5|6|7|26|8|@]|9|@]|A|$]]|$1|V|3|W|5|Q|7|27|8|@]|9|@]|A|$R|S]]|$1|X|3|Y|5|6|7|28|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|29|8|@]|9|@]|A|$]]|$1|11|3|12|5|Q|7|2A|8|@]|9|@]|A|$R|S]]|$1|13|3|14|5|6|7|2B|8|@]|9|@$E|2C|F|2D|1|2E]]|A|$]]|$1|15|3|16|5|6|7|2F|8|@]|9|@]|A|$]]|$1|17|3|-4|5|6|7|2G|8|@]|9|@]|A|$]]]|18|$19|$5|1A|1B|1C|A|$1D|1E]]|1F|$5|1A|1B|1C|A|$1D|1G]]|1H|$5|1A|1B|1C|A|$1D|1I]]|1J|$5|1A|1B|1C|A|$1D|1K]]|1L|$5|1A|1B|1C|A|$1D|1M]]]]

There are two ways

<ol>
<li>AS I told you use twill or mechanize, as twill is just a simple wrapper over mechanize you may just use mechanize(<a href="http://wwwsearch.sourceforge.net/mechanize/" rel="nofollow noreferrer">http://wwwsearch.sourceforge.net/mechanize/</a>), but to use mechanize you may need to do some hacking see <a href="https://stackoverflow.com/questions/275980/import-mechanize-module-to-python-script">import mechanize module to python script</a> for more details</li>
<li>Do it the hard way and learn something while doing that
Lets see how to login to yahoo</li>
</ol>

a) look into the page (<a href="https://login.yahoo.com/config/login_verify2?&amp;.src=ym" rel="nofollow noreferrer">https://login.yahoo.com/config/login_verify2?&amp;.src=ym</a>) and see what does form look like, you can firebug to inspect instead of looking into raw html.

b) form has login and passwd two field, Plus some more hidden fields lets ignore them for now, so till now we have
 form action url= "<a href="https://login.yahoo.com/config/login" rel="nofollow noreferrer">https://login.yahoo.com/config/login</a>?"
 form_data = {'login' : 'my_login', 'passwd' : 'my_passwd'}

c) we can post above data to the correct post url, and it may work but usually we will need to go to other pages and if we do not have cookie it will ask again for login. so lets use a cookie jar e.g.

<pre><code>jar = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(jar))
form_data = urllib.urlencode(form_data)
# data returned from this pages contains redirection
resp = opener.open(url, form_data)
</code></pre>

d) now the page from yahoo, redirects to other pages, e.g. if I want to see mail page, i will now go to that and cookies will take care of authentication e.g.

<pre><code>resp = opener.open('http://mail.yahoo.com')
print resp.read()
</code></pre>

If you see printout it says , "xxxx| logout , Hmm... your browser is not officially supported." that means it has logged me in :), but as yahoo mail is a ajax page and doesn't support my simple scripting browser, we can get past this tool by spoofing browser type, and can do lots of stuff.

Here is the final code

<pre><code>import urllib, urllib2, cookielib

url = "https://login.yahoo.com/config/login?"
form_data = {'login' : 'your-login', 'passwd' : 'your-pass'}

jar = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(jar))
form_data = urllib.urlencode(form_data)
# data returned from this pages contains redirection
resp = opener.open(url, form_data)
# yahoo redirects to http://my.yahoo.com, so lets go there insetad
resp = opener.open('http://mail.yahoo.com')
print resp.read()
</code></pre>

You should look into mechanzie code or links like this <a href="http://www.voidspace.org.uk/cgi-bin/voidspace/downman.py?file=cookielib_example.py" rel="nofollow noreferrer">http://www.voidspace.org.uk/cgi-bin/voidspace/downman.py?file=cookielib_example.py</a> to see how they do it.

we can post this data

Here is a quote from <a href="https://stackoverflow.com/questions/1901701/how-to-check-for-an-http-status-code-of-401">here</a>:
<blockquote>
So in short ... you need to look into login
page, see what params it uses e.g
login=xxx, password=yyy, post it to
that page and you will have to manage
the cookies too, that is where library
like twill etc come into picture.
</blockquote>
How could I do it using Python and Google App Engine? Can anybody please give me some clue? I have already asked a question about the authenticated request, but here it seems the matter is different as here I am suggested to look into login page and get parameters, and also I have to deal with cookies.

Googles App Engine, Python: How to get parameters from a log-in pages?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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以下是的引文所以简而言之..。您需要查看登录页面，查看它使用了哪些参数，例如login=xxx、password=yyy、将其发布到该页面，您也将不得不管理cookie，这就是像twill等库出现在图片中的地方。我如何使用Python和来完成它呢？有人能给我点线索吗？我已经问了一个关于认证请求的问题，但是这里的情况似乎...

问Google应用引擎，Python:如何从登录页面中获取参数？
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