HttpWebRequest Cookie 的怪异
我确信我一定做错了什么。 但我一生都无法弄清楚发生了什么。
我遇到一个问题,框架中的 HttpWebRequest 类似乎无法正确解析 Web 响应中的 cookie。
我正在使用 Fiddler 来查看发生了什么,在发出请求后,响应的标头如下所示:
HTTP/1.1 200 Ok
Connection: close
Date: Wed, 14 Jan 2009 18:20:31 GMT
Server: Microsoft-IIS/6.0
P3P: policyref="/w3c/p3p.xml", CP="CAO DSP IND COR ADM CONo CUR CUSi DEV PSA PSD DELi OUR COM NAV PHY ONL PUR UNI"
Set-Cookie: user=v.5,0,EX01E508801E$97$2E401000t$1BV6$A1$EC$104$A1$EC$104$A1$EC$104$21O001000$1E31!90$7CP$AE$3F$F3$D8$19o$BC$1Cd$23; Domain=.thedomain.com; path=/
Set-Cookie: minfo=v.4,EX019ECD28D6k$A3$CA$0C$CE$A2$D6$AD$D4!2$8A$EF$E8n$91$96$E1$D7$C8$0F$98$AA$ED$DC$40V$AB$9C$C1$9CF$C9$C1zIF$3A$93$C6$A7$DF$A1$7E$A7$A1$A8$BD$A6$94c$D5$E8$2F$F4$AF$A2$DF$80$89$BA$BBd$F6$2C$B6$A8; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: accttype=v.2,3,1,EX017E651B09k$A3$CA$0C$DB$A2$CB$AD$D9$8A$8C$EF$E8t$91$90$E1$DC$C89$98$AA$E0$DC$40O$A8$A4$C1$9C; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: tpid=v.1,20001; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: MC1=GUID=541977e04a341a2a4f4cdaaf49615487; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: linfo=v.4,EQC|0|0|255|1|0||||||||0|0|0||0|0|0|-1|-1; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: group=v.1,0; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Content-Type: text/html
但是当我查看响应时。Cookies,我看到了更多我期望的 cookie,其值不同cookie 被分割成不同的 cookie。
手动获取标头似乎会导致更多奇怪的情况
,例如:代码
foreach(string cookie in response.Headers.GetValues("Set-Cookie"))
{
Console.WriteLine("Cookie found: " + cookie);
}
生成输出:
Cookie found: user=v.5
Cookie found: 0
Cookie found: EX01E508801E$97$2E401000t$1BV6$A1$EC$104$A1$EC$104$A1$EC$104$21O00
1000$1E31!90$7CP$AE$3F$F3$D8$19o$BC$1Cd$23; Domain=.thedomain.com; path=/
Cookie found: minfo=v.4
Cookie found: EX019ECD28D6k$A3$CA$0C$CE$A2$D6$AD$D4!2$8A$EF$E8n$91$96$E1$D7$C8$0
F$98$AA$ED$DC$40V$AB$9C$C1$9CF$C9$C1zIF$3A$93$C6$A7$DF$A1$7E$A7$A1$A8$BD$A6$94c$
D5$E8$2F$F4$AF$A2$DF$80$89$BA$BBd$F6$2C$B6$A8; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: accttype=v.2
Cookie found: 3
Cookie found: 1
Cookie found: EX017E651B09k$A3$CA$0C$DB$A2$CB$AD$D9$8A$8C$EF$E8t$91$90$E1$DC$C89
$98$AA$E0$DC$40O$A8$A4$C1$9C; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: tpid=v.1
Cookie found: 20001; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: MC1=GUID=541977e04a341a2a4f4cdaaf49615487; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: linfo=v.4
Cookie found: EQC|0|0|255|1|0||||||||0|0|0||0|0|0|-1|-1; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: group=v.1
Cookie found: 0; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
如您所见 - 列表原始响应中的第一个 cookie:
- Set-Cookie: user=v.5,0,EX01E508801
被拆分为:
- 找到 Cookie:user=v.5
- 找到 Cookie:0
- 找到 Cookie:EX01E508801E$.........
那么 - 这是怎么回事?
- 我错了吗?
- HttpWebRequest 类是否错误地解析了 http 标头?
- 发出请求的网络服务器是否会产生无效的 http 标头?
I'm sure I must be doing something wrong. But can't for the life of me figure out what is going on.
I have a problem where it seems that the HttpWebRequest class in the framework is not correctly parsing the cookies from a web response.
I'm using Fiddler to see what is going on and after making a request, the headers of the response look as such:
HTTP/1.1 200 Ok
Connection: close
Date: Wed, 14 Jan 2009 18:20:31 GMT
Server: Microsoft-IIS/6.0
P3P: policyref="/w3c/p3p.xml", CP="CAO DSP IND COR ADM CONo CUR CUSi DEV PSA PSD DELi OUR COM NAV PHY ONL PUR UNI"
Set-Cookie: user=v.5,0,EX01E508801E$97$2E401000t$1BV6$A1$EC$104$A1$EC$104$A1$EC$104$21O001000$1E31!90$7CP$AE$3F$F3$D8$19o$BC$1Cd$23; Domain=.thedomain.com; path=/
Set-Cookie: minfo=v.4,EX019ECD28D6k$A3$CA$0C$CE$A2$D6$AD$D4!2$8A$EF$E8n$91$96$E1$D7$C8$0F$98$AA$ED$DC$40V$AB$9C$C1$9CF$C9$C1zIF$3A$93$C6$A7$DF$A1$7E$A7$A1$A8$BD$A6$94c$D5$E8$2F$F4$AF$A2$DF$80$89$BA$BBd$F6$2C$B6$A8; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: accttype=v.2,3,1,EX017E651B09k$A3$CA$0C$DB$A2$CB$AD$D9$8A$8C$EF$E8t$91$90$E1$DC$C89$98$AA$E0$DC$40O$A8$A4$C1$9C; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: tpid=v.1,20001; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: MC1=GUID=541977e04a341a2a4f4cdaaf49615487; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: linfo=v.4,EQC|0|0|255|1|0||||||||0|0|0||0|0|0|-1|-1; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Set-Cookie: group=v.1,0; expires=Sunday, 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Content-Type: text/html
But when I look at the response.Cookies, I see far more cookies that I am expecting, with values of different cookies being split up into different cookies.
Manually getting the headers seems to result in more wierdness
eg: the code
foreach(string cookie in response.Headers.GetValues("Set-Cookie"))
{
Console.WriteLine("Cookie found: " + cookie);
}
produces the output:
Cookie found: user=v.5
Cookie found: 0
Cookie found: EX01E508801E$97$2E401000t$1BV6$A1$EC$104$A1$EC$104$A1$EC$104$21O00
1000$1E31!90$7CP$AE$3F$F3$D8$19o$BC$1Cd$23; Domain=.thedomain.com; path=/
Cookie found: minfo=v.4
Cookie found: EX019ECD28D6k$A3$CA$0C$CE$A2$D6$AD$D4!2$8A$EF$E8n$91$96$E1$D7$C8$0
F$98$AA$ED$DC$40V$AB$9C$C1$9CF$C9$C1zIF$3A$93$C6$A7$DF$A1$7E$A7$A1$A8$BD$A6$94c$
D5$E8$2F$F4$AF$A2$DF$80$89$BA$BBd$F6$2C$B6$A8; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: accttype=v.2
Cookie found: 3
Cookie found: 1
Cookie found: EX017E651B09k$A3$CA$0C$DB$A2$CB$AD$D9$8A$8C$EF$E8t$91$90$E1$DC$C89
$98$AA$E0$DC$40O$A8$A4$C1$9C; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: tpid=v.1
Cookie found: 20001; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: MC1=GUID=541977e04a341a2a4f4cdaaf49615487; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: linfo=v.4
Cookie found: EQC|0|0|255|1|0||||||||0|0|0||0|0|0|-1|-1; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
Cookie found: group=v.1
Cookie found: 0; expires=Sunday
Cookie found: 31-Dec-2014 23:59:59 GMT; Domain=.thedomain.com; path=/
as you can see - the first cookie in the list raw response:
- Set-Cookie: user=v.5,0,EX01E508801
is getting split into:
- Cookie found: user=v.5
- Cookie found: 0
- Cookie found: EX01E508801E$..........
So - what's going on here?
- Am I wrong?
- Is the HttpWebRequest class incorrectly parsing the http headers?
- Is the webserver that it spitting out the requests producing invalid http headers?
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应避免在 cookie 值中使用逗号 - 您可能需要对它们进行不同的编码。
Cookie 的原始 netscape 规范 在这个问题上有点含糊,指出
推荐,但不是必需!
Commas in cookie values are to be avoided - you may need to encode them differently.
The original netscape spec for cookies was a little vague on this issue, stating
recommended, but not required!
服务器似乎发送了不正确的 cookie 值。 恕我直言,cookie 值中不允许使用逗号。 它们需要用 %2C 进行编码。
It seems that the server sends incorrect cookie values. IMHO commas are not allowed in cookie values. They need to be encoded with %2C.
您可能想使用 GetValues(i) 的整数重载; 那么你应该只返回 7 个字符串
you may want to use the integer overload of GetValues(i); you should only get back 7 strings then