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Re: ssl bump and url_rewrite_program (like squidguard)

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Hi Marcus and all,

I have option_debug ALL,2 61,9.

Logs don't tell me a lot, the squidguard answer is exactly the same with or without ssl.

=======================

2015/11/12 11:51:13.320 kid1| 11,2| client_side.cc(2345) parseHttpRequest: HTTP Client local=192.168.0.233:3128 remote=192.168.0.74:52719 FD 32 flags=1 2015/11/12 11:51:13.320 kid1| 11,2| client_side.cc(2346) parseHttpRequest: HTTP Client REQUEST:
---------
GET http://ad.doubleclick.net/N4061/adi/com.ythome/_default;sz=970x250;tile=1;ssl=1;dc_yt=1;kbsg=HPFR151111;kga=-1;kgg=-1;klg=fr;kmyd=ad_creative_1;ytexp=9405824,9415555,9416484,9416674,9417703,9418199,9419444,9420772,9421341,9421522,9421931,9421945,9422479,9423231,9423294,9423347,9423510,9423789;ord=5269238259430125? HTTP/1.1
Host: ad.doubleclick.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Cookie: id=22444c07d901000f||t=1399896339|et=730|cs=002213fd48651016fb03856b79; IDE=AHWqTUlZo9sH_j9svI23Ge8QFYiXp8lJDU2dwdeEJthW3WouVnYC__mRag
Connection: keep-alive


----------
2015/11/12 11:51:13.361 kid1| 85,2| client_side_request.cc(741) clientAccessCheckDone: The request GET http://ad.doubleclick.net/N4061/adi/com.ythome/_default;sz=970x250;tile=1;ssl=1;dc_yt=1;kbsg=HPFR151111;kga=-1;kgg=-1;klg=fr;kmyd=ad_creative_1;ytexp=9405824,9415555,9416484,9416674,9417703,9418199,9419444,9420772,9421341,9421522,9421931,9421945,9422479,9423231,9423294,9423347,9423510,9423789;ord=5269238259430125? is ALLOWED; last ACL checked: localnet 2015/11/12 11:51:13.362 kid1| 23,2| url.cc(393) urlParse: urlParse: URI has whitespace: {icap://127.0.0.1:1344/squidclamav ICAP/1.0
}
2015/11/12 11:51:13.363 kid1| 61,5| redirect.cc(292) redirectStart: redirectStart: 'http://ad.doubleclick.net/N4061/adi/com.ythome/_default;sz=970x250;tile=1;ssl=1;dc_yt=1;kbsg=HPFR151111;kga=-1;kgg=-1;klg=fr;kmyd=ad_creative_1;ytexp=9405824,9415555,9416484,9416674,9417703,9418199,9419444,9420772,9421341,9421522,9421931,9421945,9422479,9423231,9423294,9423347,9423510,9423789;ord=5269238259430125?' 2015/11/12 11:51:13.363 kid1| 61,6| redirect.cc(281) constructHelperQuery: sending 'http://ad.doubleclick.net/N4061/adi/com.ythome/_default;sz=970x250;tile=1;ssl=1;dc_yt=1;kbsg=HPFR151111;kga=-1;kgg=-1;klg=fr;kmyd=ad_creative_1;ytexp=9405824,9415555,9416484,9416674,9417703,9418199,9419444,9420772,9421341,9421522,9421931,9421945,9422479,9423231,9423294,9423347,9423510,9423789;ord=5269238259430125? 192.168.0.74/192.168.0.74 - GET myip=192.168.0.233 myport=3128
' to the redirector helper
2015/11/12 11:51:13.363 kid1| 61,5| redirect.cc(82) redirectHandleReply: reply={result=OK, notes={status: 302; url: https://proxyweb.echoppe.lan/cgi-bin/squidGuard-simple.cgi?clientaddr=192.168.0.74pipo&clientname=192.168.0.74&clientuser=&clientgroup=marine&targetgroup=adv; }} 2015/11/12 11:51:13.363 kid1| 85,2| client_side_request.cc(717) clientAccessCheck2: No adapted_http_access configuration. default: ALLOW 2015/11/12 11:51:13.363 kid1| 85,2| client_side_request.cc(741) clientAccessCheckDone: The request GET http://ad.doubleclick.net/N4061/adi/com.ythome/_default;sz=970x250;tile=1;ssl=1;dc_yt=1;kbsg=HPFR151111;kga=-1;kgg=-1;klg=fr;kmyd=ad_creative_1;ytexp=9405824,9415555,9416484,9416674,9417703,9418199,9419444,9420772,9421341,9421522,9421931,9421945,9422479,9423231,9423294,9423347,9423510,9423789;ord=5269238259430125? is ALLOWED; last ACL checked: all 2015/11/12 11:51:13.363 kid1| 20,2| store.cc(936) checkCachable: StoreEntry::checkCachable: NO: not cachable 2015/11/12 11:51:13.363 kid1| 20,2| store.cc(936) checkCachable: StoreEntry::checkCachable: NO: not cachable 2015/11/12 11:51:13.363 kid1| 88,2| client_side_reply.cc(2001) processReplyAccessResult: The reply for GET http://ad.doubleclick.net/N4061/adi/com.ythome/_default;sz=970x250;tile=1;ssl=1;dc_yt=1;kbsg=HPFR151111;kga=-1;kgg=-1;klg=fr;kmyd=ad_creative_1;ytexp=9405824,9415555,9416484,9416674,9417703,9418199,9419444,9420772,9421341,9421522,9421931,9421945,9422479,9423231,9423294,9423347,9423510,9423789;ord=5269238259430125? is ALLOWED, because it matched all 2015/11/12 11:51:13.363 kid1| 11,2| client_side.cc(1391) sendStartOfMessage: HTTP Client local=192.168.0.233:3128 remote=192.168.0.74:52719 FD 32 flags=1 2015/11/12 11:51:13.363 kid1| 11,2| client_side.cc(1392) sendStartOfMessage: HTTP Client REPLY:
---------
HTTP/1.1 302 Found
Server: squid/3.5.10
Date: Thu, 12 Nov 2015 10:51:13 GMT
Content-Length: 0
Location: https://proxyweb.echoppe.lan/cgi-bin/squidGuard-simple.cgi?clientaddr=192.168.0.74pipo&clientname=192.168.0.74&clientuser=&clientgroup=marine&targetgroup=adv
X-Cache: MISS from squid
X-Cache-Lookup: MISS from squid:3128
Via: 1.1 squid (squid/3.5.10)
Connection: keep-alive


----------
2015/11/12 11:51:13.363 kid1| 20,2| store.cc(936) checkCachable: StoreEntry::checkCachable: NO: not cachable 2015/11/12 11:51:13.363 kid1| 20,2| store.cc(936) checkCachable: StoreEntry::checkCachable: NO: not cachable 2015/11/12 11:51:14.849 kid1| 5,2| TcpAcceptor.cc(222) doAccept: New connection on FD 46 2015/11/12 11:51:14.849 kid1| 5,2| TcpAcceptor.cc(297) acceptNext: connection on local=[::]:3128 remote=[::] FD 46 flags=9 2015/11/12 11:51:14.849 kid1| 11,2| client_side.cc(2345) parseHttpRequest: HTTP Client local=192.168.0.233:3128 remote=192.168.0.74:52721 FD 48 flags=1 2015/11/12 11:51:14.849 kid1| 11,2| client_side.cc(2346) parseHttpRequest: HTTP Client REQUEST:
---------
CONNECT ad.doubleclick.net:443 HTTP/1.1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0
Proxy-Connection: keep-alive
Connection: keep-alive
Host: ad.doubleclick.net:443


----------
2015/11/12 11:51:14.850 kid1| 85,2| client_side_request.cc(741) clientAccessCheckDone: The request CONNECT ad.doubleclick.net:443 is ALLOWED; last ACL checked: localnet 2015/11/12 11:51:14.850 kid1| 23,2| url.cc(393) urlParse: urlParse: URI has whitespace: {icap://127.0.0.1:1344/squidclamav ICAP/1.0
}
2015/11/12 11:51:14.851 kid1| 61,5| redirect.cc(292) redirectStart: redirectStart: 'ad.doubleclick.net:443' 2015/11/12 11:51:14.851 kid1| 61,6| redirect.cc(281) constructHelperQuery: sending 'ad.doubleclick.net:443 192.168.0.74/192.168.0.74 - CONNECT myip=192.168.0.233 myport=3128
' to the redirector helper
2015/11/12 11:51:14.851 kid1| 61,5| redirect.cc(82) redirectHandleReply: reply={result=OK, notes={status: 302; url: https://proxyweb.echoppe.lan/cgi-bin/squidGuard-simple.cgi?clientaddr=192.168.0.74pipo&clientname=192.168.0.74&clientuser=&clientgroup=marine&targetgroup=adv; }} 2015/11/12 11:51:14.851 kid1| 85,2| client_side_request.cc(717) clientAccessCheck2: No adapted_http_access configuration. default: ALLOW 2015/11/12 11:51:14.851 kid1| 85,2| client_side_request.cc(741) clientAccessCheckDone: The request CONNECT ad.doubleclick.net:443 is ALLOWED; last ACL checked: all 2015/11/12 11:51:14.851 kid1| 20,2| store.cc(936) checkCachable: StoreEntry::checkCachable: NO: not cachable 2015/11/12 11:51:14.851 kid1| 20,2| store.cc(936) checkCachable: StoreEntry::checkCachable: NO: not cachable 2015/11/12 11:51:14.851 kid1| 88,2| client_side_reply.cc(2001) processReplyAccessResult: The reply for CONNECT ad.doubleclick.net:443 is ALLOWED, because it matched all 2015/11/12 11:51:14.851 kid1| 11,2| client_side.cc(1391) sendStartOfMessage: HTTP Client local=192.168.0.233:3128 remote=192.168.0.74:52721 FD 48 flags=1 2015/11/12 11:51:14.851 kid1| 11,2| client_side.cc(1392) sendStartOfMessage: HTTP Client REPLY:
---------
HTTP/1.1 302 Found
Server: squid/3.5.10
Date: Thu, 12 Nov 2015 10:51:14 GMT
Content-Length: 0
Location: https://proxyweb.echoppe.lan/cgi-bin/squidGuard-simple.cgi?clientaddr=192.168.0.74pipo&clientname=192.168.0.74&clientuser=&clientgroup=marine&targetgroup=adv
X-Cache: MISS from squid
X-Cache-Lookup: MISS from squid:3128
Via: 1.1 squid (squid/3.5.10)
Connection: keep-alive


----------
2015/11/12 11:51:14.851 kid1| 20,2| store.cc(936) checkCachable: StoreEntry::checkCachable: NO: not cachable 2015/11/12 11:51:14.851 kid1| 20,2| store.cc(936) checkCachable: StoreEntry::checkCachable: NO: not cachable 2015/11/12 11:51:14.851 kid1| abandoning local=192.168.0.233:3128 remote=192.168.0.74:52721 FD 48 flags=1

========================

On the wireshark side:

In the http case I observe 2 streams:
* One with the proxy
GET http://ad.doubleclick.net/N4061/adi/com.ythome/_default;sz=970x250;tile=1;ssl=1;dc_yt=1;kbsg=HPFR151111;kga=-1;kgg=-1;klg=fr;kmyd=ad_creative_1;ytexp=9405824,9415555,9416484,9416674,9417703,9418199,9419444,9420772,9421341,9421522,9421931,9421945,9422479,9423231,9423294,9423347,9423510,9423789;ord=5269238259430125? HTTP/1.1
Host: ad.doubleclick.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Cookie: id=22444c07d901000f||t=1399896339|et=730|cs=002213fd48651016fb03856b79; IDE=AHWqTUlZo9sH_j9svI23Ge8QFYiXp8lJDU2dwdeEJthW3WouVnYC__mRag
Connection: keep-alive

HTTP/1.1 302 Found
Server: squid/3.5.10
Date: Thu, 12 Nov 2015 10:35:50 GMT
Content-Length: 0
Location: https://proxyweb.echoppe.lan/cgi-bin/squidGuard-simple.cgi?clientaddr=192.168.0.74pipo&clientname=192.168.0.74&clientuser=&clientgroup=marine&targetgroup=adv
X-Cache: MISS from squid
X-Cache-Lookup: MISS from squid:3128
Via: 1.1 squid (squid/3.5.10)
Connection: keep-alive

* Then one with proxyweb SSL encoded

That sounds logical to me.


In the https case I observe just 1 stream:
CONNECT ad.doubleclick.net:443 HTTP/1.1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0
Proxy-Connection: keep-alive
Connection: keep-alive
Host: ad.doubleclick.net:443

HTTP/1.1 302 Found
Server: squid/3.5.10
Date: Thu, 12 Nov 2015 10:35:57 GMT
Content-Length: 0
Location: https://proxyweb.echoppe.lan/cgi-bin/squidGuard-simple.cgi?clientaddr=192.168.0.74pipo&clientname=192.168.0.74&clientuser=&clientgroup=marine&targetgroup=adv
X-Cache: MISS from squid
X-Cache-Lookup: MISS from squid:3128
Via: 1.1 squid (squid/3.5.10)
Connection: keep-alive

CONNECT ad.doubleclick.net:443 HTTP/1.1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:42.0) Gecko/20100101 Firefox/42.0
Proxy-Connection: keep-alive
Connection: keep-alive
Host: ad.doubleclick.net:443


All this is between my client and proxy server.

Why is the browser not taking account of the redirect?
Why is it redoing the same connect?
Why is there no trace at all in the proxy logs of this second CONNECT?

Regards, EG
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