Hi Alex, I try some test's. It is not so bad, but I saw that there are problems. After surfing the web for a while the icap-client of squid failed and the squid returned an error page to the web browser (ICAP protocoll error .... ICAP server is not reachable ......) The icap client sends an respmod request with preview data and after the the server responds with 100 Continue the squid closes the connection. I have the same error on some sites (e.g freshmeat.net) using c-icap icap server. I compiled squid using gcc 4.1.2. I did not have enough time to look more on it. I will try to find time next days for tests and debuging.....
My squid logs are: 2007/02/14 20:21:19.587| ICAPModXact should offer 43-byte preview (service wanted 1024) 2007/02/14 20:21:19.587| ICAPModXact ICAP will write [FD 13r;Rrw(1)P(43)B/ icapx338]: RESPMOD icap://192.168.1.4:1344/srv_clamav ICAP/1.0 Host: 192.168.1.4:1344 Date: Wed, 14 Feb 2007 18:21:19 GMT Encapsulated: req-hdr=0, res-hdr=597, res-body=821 Preview: 43 Allow: 204 GET http://ads.in.gr/adlog.php?bannerid=815&clientid=224&zoneid=119&source=251&block=0&capping=0&cb=993fc456072f1bc18ea9ab8de58b1da9 HTTP/1.1 Host: ads.in.gr User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1) Gecko/20061023 SUSE/2.0-30 Firefox/2.0 Accept: image/png,*/*;q=0.5 Accept-Language: el,en-us;q=0.7,en;q=0.3 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-7,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Proxy-Connection: keep-alive Referer: http://www.in.gr/news/category.asp?lngDtrID=251 Via: 1.0 fortune.home.chtsanti.net (C-ICAP/120207 Clamav/Antivirus service ) HTTP/1.1 200 OK Date: Wed, 14 Feb 2007 18:19:51 GMT Server: Apache X-Powered-By: PHP/4.4.4 Pragma: no-cache Cache-Control: private, max-age=0, no-cache Content-Length: 43 Connection: close Content-Type: image/gif 2007/02/14 20:21:19.587| ICAPModXact::noteCommConnected ended [FD 13wr;Rrw(2)P(43)B/ icapx338] 2007/02/14 20:21:19.588| ICAPModXact::noteCommWrote called [FD 13wr;Rrw(2)P(43)B/ icapx338] 2007/02/14 20:21:19.588| ICAP/ICAPModXact.cc(149) Wrote 1014 bytes 2007/02/14 20:21:19.588| ICAP/ICAPModXact.cc(177) checking whether to write more [FD 13r;Rrw(3)P(43)B/ icapx338] 2007/02/14 20:21:19.588| ICAP/ICAPModXact.cc(216) will write Preview body from 0x8525f40*2 [FD 13r;Rrw(3)P(43)B/ icapx338] 2007/02/14 20:21:19.588| ICAP/ICAPModXact.cc(255) will write up to 43 bytes of preview body 2007/02/14 20:21:19.588| ICAP/ICAPModXact.cc(266) will write 43-byte chunk of preview body 2007/02/14 20:21:19.588| ICAP/ICAPModXact.cc(278) will write last-chunk of preview body 2007/02/14 20:21:19.588| ICAP/ICAPModXact.cc(283) will write 54 raw bytes of preview body 2007/02/14 20:21:19.588| ICAPModXact wrote entire Preview body [FD 13wr;Rrw(3)B/P icapx338] 2007/02/14 20:21:19.588| ICAPModXact::noteCommWrote ended [FD 13wr;Rrw(4)B/P icapx338] 2007/02/14 20:21:19.588| ICAPModXact::noteCommWrote called [FD 13wr;Rrw(4)B/P icapx338] 2007/02/14 20:21:19.589| ICAP/ICAPModXact.cc(149) Wrote 54 bytes 2007/02/14 20:21:19.589| ICAP/ICAPModXact.cc(177) checking whether to write more [FD 13r;Rrw(4)B/P icapx338] 2007/02/14 20:21:19.589| ICAPModXact::noteCommWrote ended [FD 13r;Rrw(4)B/P icapx338] 2007/02/14 20:21:19.599| ICAP/ICAPXaction.cc(58) 0x84d8ac8 read returned 25 2007/02/14 20:21:19.599| ICAPModXact::noteCommRead called [FD 13r;Rrw(4)B/P icapx338] 2007/02/14 20:21:19.599| ICAP/ICAPXaction.cc(328) read 25 bytes 2007/02/14 20:21:19.599| ICAP/ICAPModXact.cc(548) have 25 bytes to parse [FD 13;Rrw(4)B/P icapx338] 2007/02/14 20:21:19.599| ICAP/ICAPModXact.cc(549) ICAP/1.0 100 Continue 2007/02/14 20:21:19.599| ICAP/ICAPModXact.cc(577) parse ICAP headers 2007/02/14 20:21:19.599| ICAP/ICAPModXact.cc(780) have 25 head bytes to parse; state: 0 2007/02/14 20:21:19.600| HttpMsg::parse success (25 bytes) near 'ICAP/1.0 100 Continue ' 2007/02/14 20:21:19.600| ICAP/ICAPModXact.cc(792) parse success, consume 25 bytes, return true 2007/02/14 20:21:19.600| ICAP/ICAPModXact.cc(177) checking whether to write more [FD 13;Rrw(5)B/P icapx338] 2007/02/14 20:21:19.600| ICAPModXact::noteCommRead caught an exception: virginWriteClaim.active() [FD 13;Rrw(5)B/P icapx338] 2007/02/14 20:21:19.600| ICAPModXact will stop, reason: exception 2007/02/14 20:21:19.600| ICAPModXact::noteCommRead ends xaction [FD 13;Rrw(5)B/StoppedP icapx338] 2007/02/14 20:21:19.600| ICAP/ICAPModXact.cc(943) swan sings [FD 13;Rrw(5)B/StoppedP icapx338] 2007/02/14 20:21:19.600| ICAP/ICAPModXact.cc(946) swan sings for exception [FD 13;Rrw(5)B/StoppedP icapx338] 2007/02/14 20:21:19.600| ICAP/ICAPModXact.cc(947) will call ICAPInitiator::noteIcapHeadersAborted(0x8521d10) 2007/02/14 20:21:19.600| ICAP/ICAPModXact.cc(412) will no longer write [FD 13;Rrw(5)B/StoppedP icapx338] 2007/02/14 20:21:19.601| ICAPModXact will no longer backup [FD 13;RrB/StoppedwP icapx338] 2007/02/14 20:21:19.601| ICAP/ICAPModXact.cc(376) consuming 43 out of 43 virgin body bytes 2007/02/14 20:21:19.601| ICAPModXact will not start sending [FD 13;Rr/StoppedwP icapx338] 2007/02/14 20:21:19.601| ICAP/ICAPModXact.cc(541) will stop consuming [FD 13;Rr/StoppedwPS icapx338] 2007/02/14 20:21:19.601| ICAP/ICAPXaction.cc(174) closing pconn [FD 13;r/StoppedRwPS icapx338] 2007/02/14 20:21:19.601| ICAP/ICAPXaction.cc(429) swan sang [/StoppedRwPS icapx338] 2007/02/14 20:21:19.601| ICAP/ICAPXaction.cc(489) ICAPModXact::noteCommRead ended 0x84d8ac8 2007/02/14 20:21:19.623| entering ICAPInitiator::noteIcapHeadersAborted(0x8521d10) 2007/02/14 20:21:19.624| ICAPModXact destructed, this=0x84d8ac8 [icapx338] 2007/02/14 20:21:19.624| Server.cc(464) handleIcapAborted; entry empty: 1 2007/02/14 20:21:19.624| Server.cc(470) creating ICAP error entry after ICAP failure 2007/02/14 20:21:19.624| Server.cc(478) bailing after ICAP failure 2007/02/14 20:21:19.624| Server.cc(333) cleaning ICAP 2007/02/14 20:21:19.624| http.cc(1302) closing HTTP server FD -1 this 0x8521d10 2007/02/14 20:21:19.624| Server.cc(112) transaction done 2007/02/14 20:21:19.624| http.cc(151) HttpStateData 0x8521d10 destroyed; FD -1 2007/02/14 20:21:19.625| Server.cc(333) cleaning ICAP 2007/02/14 20:21:19.625| exiting ICAPInitiator::noteIcapHeadersAborted(0x8521d10) ...............................