| 12345678910111213141516171819202122232425262728 | # HTTP - HyperText Transfer Protocol - RFC 2616# Pattern quality: great notsofast# Usually runs on port 80## This pattern has been tested and is believed to work well.  If it does not# work for you, or you believe it could be improved, please post to # l7-filter-developers@lists.sf.net .  This list may be subscribed to at# http://lists.sourceforge.net/lists/listinfo/l7-filter-developers## this intentionally catches the response from the server# rather than the request so that other protocols which use# http (like kazaa) can be caught based on specific http requests# regardless of the ordering of filters...# also matches posts# Sites that serve really long cookies may break this by pushing the# server response too far away from the beginning of the connection. To# fix this, increase the kernel's data buffer length.http# Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF (rfc 2616)# As specified in rfc 2616 a status code is preceeded and followed by a# space. http/(0\.9|1\.0|1\.1) [1-5][0-9][0-9] [\x09-\x0d -~]*(connection:|content-type:|content-length:|date:)|post [\x09-\x0d -~]* http/[01]\.[019]# A slightly faster version that might be good enough:#http/(0\.9|1\.0|1\.1) [1-5][0-9][0-9]|post [\x09-\x0d -~]* http/[01]\.[019]# old pattern(s):#(http[\x09-\x0d -~]*(200 ok|302 |304 )[\x09-\x0d -~]*(connection:|content-type:|content-length:))|^(post [\x09-\x0d -~]* http/)
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