私の目標は、C++/Winsock を使用して vBulletin フォーラムにログインすることです。フォーラムは、forums.randi.org です。
この目的のために、私はパケットを盗聴してきました。これは、ログインの詳細を提供する POST 要求に対するサーバー応答のヘッダーです。
HTTP/1.1 200 OK
Date Tue, 19 Feb 2013 18:12:52 GMT
Server Apache/2.0.63 (Unix) mod_ssl/2.0.63 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 PHP/5.2.8
X-Powered-By PHP/5.2.8
Set-Cookie bblastvisit=1361297572; expires=Wed, 19-Feb-2014 18:12:52 GMT; path=/
Set-Cookie bblastactivity=0; expires=Wed, 19-Feb-2014 18:12:52 GMT; path=/
Set-Cookie bbwelcomeheaders=1361297572; path=/
Set-Cookie bbsessionhash=9ad9da23b1399e81772437c3819a2501; path=/; HttpOnly
Cache-Control private
Pragma private
X-UA-Compatible IE=7
Content-Encoding gzip
Content-Length 2152
Connection close
Content-Type text/html; charset=ISO-8859-1
私の問題は、応答の内容を読もうとしても役に立たないことです。ヘッダーが示すように、コンテンツの長さは 2152 バイトである必要があります。私は確かに2152バイトをいくつかのバッファに読み込みましたが、それらは意味不明です(応答ヘッダーは完全に正常に見えます)。同時に、私のスニファー (HttpFox、Firefox プラグイン) は完全に正当なコンテンツを表示しますが、そのサイズは指定された 2152 バイト (約 5900 バイト) よりもはるかに大きくなっています。
ログインに成功した後にスニファによって取得されるコンテンツが続きます。winsock でこのコンテンツを読み取る方法と、ヘッダーに示されている Content-Length よりも長いのはなぜでしょうか。
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