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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Can it be verified using some kind of dumps?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The issues is that if I will try to access <a href="https://web.whatsapp.com/">https://web.whatsapp.com/</a> it will probably won't work despite to the fact that I have or do not have a certificate.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>From my eyes it's not a certificate issue but rather a websocket one.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The simplest way to see it would be using this firefox dump:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>curl "https://w1.web.whatsapp.com/ws" -H "Host: w1.web.whatsapp.com" -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0" -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" -H "Accept-Language: en-US,he;q=0.7,en;q=0.3" --compressed -H "Sec-WebSocket-Version: 13" -H "Origin: https://web.whatsapp.com" -H "Sec-WebSocket-Extensions: permessage-deflate" -H "Sec-WebSocket-Key: 323TCNi3BxG0LJ+nTi2V1g==" -H "Connection: keep-alive, Upgrade" -H "Pragma: no-cache" -H "Cache-Control: no-cache" -H "Upgrade: websocket"<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I believe that we can somehow make sure how it will be secure "enough" to mangle the response headers and change any Connection into a "close" one and then splice the client and the server.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It's not safe for many systems but when the sysadmins are using whatsapp to send internal messages it would be ridicules to restrict the network users for these apps.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>But in the other hand maybe the sysadmins are smart and the other users are not enough so I am not sure what would be the best option.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>For this case a configuration would be appropriate.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Eliezer<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial Rounded MT Bold","sans-serif";color:#1F497D'>----<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial Rounded MT Bold","sans-serif";color:#1F497D'><a href="http://ngtech.co.il/lmgtfy/"><span style='color:#0563C1'>Eliezer Croitoru</span></a><br>Linux System Administrator<br>Mobile: +972-5-28704261<br>Email: eliezer@ngtech.co.il<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img border=0 width=183 height=69 id="Picture_x0020_1" src="cid:image001.png@01D20A27.68DFDEB0"><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> Chico Venancio [mailto:chicocvenancio@gmail.com] <br><b>Sent:</b> Thursday, September 8, 2016 11:05 PM<br><b>To:</b> Eliezer Croitoru<br><b>Cc:</b> squid-users@lists.squid-cache.org<br><b>Subject:</b> Re: [squid-users] Web Whatsapp, Dropbox... problem<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p>We had that trouble with whatsapp web. We simply put it in the splice rule. It seems whatsapp checks the client certificate. <o:p></o:p></p><p>Chico Venancio <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Em 08/09/2016 16:09, "Eliezer Croitoru" <<a href="mailto:eliezer@ngtech.co.il">eliezer@ngtech.co.il</a>> escreveu:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal>Hey,<br><br>Can I reproduce this by just entering the url in chrome\chromium\firefox\Internet Exploere\Edge\other?<br>I am testing Squid 4 but it's moving slow compared to what I could in the past.<br>I have a squid 4 up and running and I will try to see if I can reproduce it.<br>Can you provide more details about the squid.conf?<br><br>Eliezer<br><br>----<br>Eliezer Croitoru<br>Linux System Administrator<br>Mobile: <a href="tel:%2B972-5-28704261">+972-5-28704261</a><br>Email: <a href="mailto:eliezer@ngtech.co.il">eliezer@ngtech.co.il</a><br><br><br>-----Original Message-----<br>From: squid-users [mailto:<a href="mailto:squid-users-bounces@lists.squid-cache.org">squid-users-bounces@lists.squid-cache.org</a>] On Behalf Of erdosain9<br>Sent: Thursday, September 8, 2016 3:38 PM<br>To: <a href="mailto:squid-users@lists.squid-cache.org">squid-users@lists.squid-cache.org</a><br>Subject: Re: [squid-users] Web Whatsapp, Dropbox... problem<br><br>Finally i update to squid 3.5 and try the acl with dstdomain<br><br><br>Craddock, Tommy wrote<br>> Hello,<br>> Create an ACL that will be a list of domains, either in the ACL or in<br>> a txt file that the ACL refers to, and place any URLs you want<br>> bypassed by the proxy into the ACL. Something like this:<br>> ACL Section of your squid.conf:<br>> acl bypass_dst_dom dstdomain "/etc/squid/bypass_dst_domain.txt"<br>> Then in the http_access section:<br>> http_access allow bypass_dst_dom<br><br>But dosent work.... the web keep loading <<a href="http://squid-web-proxy-cache.1019090.n4.nabble.com/file/n4679426/Captura_de_pantalla_de_2016-09-08_09-40-14.png" target="_blank">http://squid-web-proxy-cache.1019090.n4.nabble.com/file/n4679426/Captura_de_pantalla_de_2016-09-08_09-40-14.png</a>><br><br><br><br><br>--<br>View this message in context: <a href="http://squid-web-proxy-cache.1019090.n4.nabble.com/Web-Whatsapp-Dropbox-problem-tp4679299p4679426.html" target="_blank">http://squid-web-proxy-cache.1019090.n4.nabble.com/Web-Whatsapp-Dropbox-problem-tp4679299p4679426.html</a><br>Sent from the Squid - Users mailing list archive at Nabble.com.<br>_______________________________________________<br>squid-users mailing list<br><a href="mailto:squid-users@lists.squid-cache.org">squid-users@lists.squid-cache.org</a><br><a href="http://lists.squid-cache.org/listinfo/squid-users" target="_blank">http://lists.squid-cache.org/listinfo/squid-users</a><br><br>_______________________________________________<br>squid-users mailing list<br><a href="mailto:squid-users@lists.squid-cache.org">squid-users@lists.squid-cache.org</a><br><a href="http://lists.squid-cache.org/listinfo/squid-users" target="_blank">http://lists.squid-cache.org/listinfo/squid-users</a><o:p></o:p></p></blockquote></div></div></div></body></html>