Python使用Socket(Https)Post登錄百度的實(shí)現(xiàn)代碼

更新時(shí)間：2012年05月18日 17:47:11 作者：

以前都是用一些高級(jí)模塊，封裝的比較好，今天嘗試使用socket模塊登錄百度，弄了半天才弄好，主要由于百度在登陸頁(yè)使用了https，我們需要對(duì)socket進(jìn)行一定處理

登錄百度，首先當(dāng)然是先抓百度的登錄包，由于是網(wǎng)頁(yè)登錄，最方便的自然是httpwatch了，我使用的測(cè)試賬號(hào)是itiandatest1，密碼是itianda，抓包結(jié)果：

 
POST /?login HTTP/1.1 
Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */* 
Referer: https://passport.baidu.com/?login&amp;tpl=mn 
Accept-Language: zh-CN 
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; Alexa Toolbar; BOIE9;ZHCN) 
Content-Type: application/x-www-form-urlencoded 
Accept-Encoding: gzip, deflate 
Host: passport.baidu.com 
Content-Length: 243 
Connection: Keep-Alive 
Cache-Control: no-cache 

登錄包抓到了，下面開(kāi)始寫(xiě)代碼：

復(fù)制代碼代碼如下:

 
import socket 
import ssl 
sock = ssl.wrap_socket(socket.socket()) 

ssl是專門(mén)用來(lái)處理https的模塊，我們使用該模塊的wrap_socket函數(shù)生成一個(gè)SSLSocket對(duì)象。

然后建立連接：

復(fù)制代碼代碼如下:

sock.connect(('passport.baidu.com', 443))

這里需要注意的是https使用443端口，不是80。

之后發(fā)送數(shù)據(jù)：

復(fù)制代碼代碼如下:

 
data = '''\ 
POST /?login HTTP/1.1 
Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */* 
Referer: https://passport.baidu.com/?login&amp;tpl=mn 
Accept-Language: zh-CN 
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; Alexa Toolbar; BOIE9;ZHCN) 
Content-Type: application/x-www-form-urlencoded 
Host: passport.baidu.com 
Content-Length: 243 
Connection: Keep-Alive 
Cache-Control: no-cache 
tpl_ok=&amp;next_target=&amp;tpl=mn&amp;skip_ok=&amp;aid=&amp;need_pay=&amp;need_coin=&amp;pay_method=&amp;u=http%3A%2F%2Fwww.baidu.com%2F&amp;return_method=get&amp;more_param=&amp;return_type=&amp;psp_tt=0&amp;password=itianda&amp;safeflg=0&amp;isphone=tpl&amp;username=itiandatest1&amp;verifycode=&amp;mem_pass=on\ 
''' 
sock.sendall(data) 

需要注意的是sendall之后不能調(diào)用shutdown方法。

其余部分就和普通的socket處理方式?jīng)]什么差別了：

復(fù)制代碼代碼如下:

 
recv_data = sock.recv(8192) 
sock.close() 
print recv_data 

由于我們只需要cookie信息，所以只接收少量數(shù)據(jù)就可以了。

登錄成功的標(biāo)志是服務(wù)器返回含有BDUSS的set-cookie：

復(fù)制代碼代碼如下:

 
HTTP/1.1 200 OK 
Set-Cookie: BAIDUID=DB464E1EBA6571FB82D70460D6AAB666:FG=1; max-age=946080000; expires=Wed, 11-Dec-41 17:18:17 GMT; domain=.baidu.com; path=/; version=1 
P3P: CP=" OTI DSP COR IVA OUR IND COM " 
Date: Mon, 19 Dec 2011 17:18:17 GMT 
Server: Apache 
P3P: CP=" OTI DSP COR IVA OUR IND COM " 
P3P: CP=" OTI DSP COR IVA OUR IND COM " 
P3P: CP=" OTI DSP COR IVA OUR IND COM " 
Set-Cookie: BAIDUID=26FD0CB5389BF4699C447982D8080239:FG=1; expires=Wed, 11-Dec-41 17:18:17 GMT; max-age=946080000; path=/; domain=.baidu.com; version=1 
Set-Cookie: BAIDUID=26FD0CB5389BF4698191E4134CACEA29:FG=1; expires=Wed, 11-Dec-41 17:18:17 GMT; max-age=946080000; path=/; domain=.baidu.com; version=1 
Set-Cookie: BDUSS=dTajkzWTFWR3hXT3Jsc09LdkNsZ011YlZka340VWtqNkZzbW0tUTdOUFp-aFpQQVFBQUFBJCQAAAAAAAAAAAouTSCLkioVaXRpYW5kYXRlc3QxAAAAAAAAAAAAAAAAAAAAAAAAAADgmoV5AAAAAOCahXkAAAAAuWZCAAAAAAAxMC42NS40NNlx707Zce9OWT; expires=Tue, 01 Jan 2030 00:00:00 GMT; path=/; domain=.baidu.com 
Set-Cookie: PTOKEN=16ba4a120f070f3cc759a817981c2516; expires=Tue, 01 Jan 2030 00:00:00 GMT; path=/; domain=passport.baidu.com; HttpOnly 
Set-Cookie: STOKEN=fda94395cd4ae4661cefd3a4017a8454; expires=Tue, 01 Jan 2030 00:00:00 GMT; path=/; domain=passport.baidu.com 
Set-Cookie: USERID=626167789a799e630e60fb27466fa80e; expires=Tue, 01 Jan 2030 00:00:00 GMT; path=/; domain=.baidu.com 
Content-Type: text/html;charset=gbk 
Cache-Control: no-cache 
Pragma: no-cache 
Content-Encoding: none 
Content-Length: 850 
Connection: close 