RE: [squid-users] possible SOAP problem with 3.1.4 from Alan Lehman on 2010-08-10 (squid-users)

From: Alan Lehman <alehman_at_gbateam.com>
Date: Tue, 10 Aug 2010 09:14:05 -0500

> >> From: Amos Jeffries [mailto:squid3_at_treenet.co.nz]
> >> Sent: Sunday, July 11, 2010 1:55 AM
> >> To: squid-users_at_squid-cache.org
> >> Subject: Re: [squid-users] possible SOAP problem with 3.1.4
> >>
> >> Alan Lehman wrote:
> >>> We have particular application software license server for our
> office
> >>> that is located behind a Squid proxy. It stopped working after
> >> upgrading
> >>> Squid from 3.1.0.17 to 3.1.4. This server periodically goes to the
> >>> software company's web site to verify the license is valid and
> upload
> >>> user counts, etc. It appears to be some sort of SOAP application.
> The
> >>> license server runs on a Windows server. From access.log:
> >>>
> >>> Running 3.1.0.17 (succeeds) -
> >>> 1278609155.802 470 172.16.4.43 TCP_MISS/200 725 POST
> >>> http://selectserver.bentley.com/bss/ws/Misc.asmx -
> >> DIRECT/64.90.235.78
> >>> text/xml
> >>> 1278609157.482 1054 172.16.4.43 TCP_MISS/200 117679 POST
> >>> http://selectserver.bentley.com/bss/ws/GatewayWS.asmx -
> >>> DIRECT/64.90.235.78 text/xml
> >>>
> >>> Running 3.1.4 (fails) -
> >>> 1278607986.223 1138 172.16.4.43 TCP_MISS/500 838 POST
> >>> http://selectserver.bentley.com/bss/ws/Misc.asmx -
> >> DIRECT/64.90.235.78
> >>> application/soap+xml
> >>> 1278607987.128 895 172.16.4.43 TCP_MISS/200 1178 POST
> >>> http://selectserver.bentley.com/bss/ws/Misc.asmx -
> >> DIRECT/64.90.235.78
> >>> text/xml
> >>>
> >>> I verified the situation by going back to 3.1.0.17 with the same
> >> config,
> >>> whereupon it started working again. I tried adding cache deny for
> >> this
> >>> domain but it didn't change anything.
> >>>
> >>> Any thoughts would be most appreciated.
> >>> Thanks,
> >>> Alan Lehman
> >> Don't know the problem.
> >> You are going to have to dig into the request/reply's a bit further
> to
> >> see what the problems is.
> >> The biggest difference between 3.1.0.17 and 3.1.4 is that HTTP/1.1
> is
> >> sent to the server by 3.1.4. It may be doing some broken magic, as
> >> evidenced by the different response type given to Squid now.
> >>
> >> Amos
> >> --
> >> Please be using
> >> Current Stable Squid 2.7.STABLE9 or 3.1.5
> >
> >
> > So far I'm unable to determine a consistent pattern with Wireshark.
> Is there a way I can force 3.1.4 to use HTTP/1.0?
> >
> > Alan
>
> You can reverse the 1.1 enabling patch found here:
> http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-
> 9916.patch
>
> Amos
> --
> Please be using
> Current Stable Squid 2.7.STABLE9 or 3.1.5

Using Wireshark, I recorded the following conversation between the license server and Squid-3.1.6. The capture with the patched version of squid is very similar. It appears to me that the license server is not responding correctly to Squid's 417, right? But why is Squid 3.1.6 (unpatched) issuing the 417?

POST http://selectserver.bentley.com/bss/ws/GatewayWS.asmx HTTP/1.1
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client Protocol 2.0.50727.3603)
Content-Type: text/xml; charset=utf-8
SOAPAction: "http://bentley.com/selectserver/webservices/GetGatewayLicense"
Host: selectserver.bentley.com
Content-Length: 564
Expect: 100-continue
Proxy-Connection: Keep-Alive

HTTP/1.0 417 Expectation Failed
Server: squid/3.1.6
Mime-Version: 1.0
Date: Tue, 10 Aug 2010 13:40:31 GMT
Content-Type: text/html
Content-Length: 3944
X-Squid-Error: ERR_INVALID_REQ 0
Vary: Accept-Language
Content-Language: en
X-Cache: MISS from proxy2.gbateam.com
Via: 1.0 proxy2.gbateam.com (squid/3.1.6)
Proxy-Connection: close

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html><head>....
</body></html>

ï»¿<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><GetGatewayLicense xmlns="http://bentley.com/selectserver/webservices/"><GatewayKey>062D0432571D1748859E50B1CD98B9DE</GatewayKey><GatewaySiteKeys><string>062D0432571D1748859E50B1CD98B9DE</string></GatewaySiteKeys><ComputerName>SUP1</ComputerName><SSHostName>selectserver.bentley.com</SSHostName></GetGatewayLicense></soap:Body></soap:Envelope>

POST http://selectserver.bentley.com/bss/ws/usagelogging.asmx HTTP/1.0
User-Agent: BSIlm/0.9.0.0
Host: selectserver.bentley.com
Content-Length: 0
Proxy-Connection: Keep-Alive
Pragma: no-cache

HTTP/1.0 500 Internal Server Error
Date: Tue, 10 Aug 2010 13:40:33 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private
Content-Type: application/soap+xml; charset=utf-8
Content-Length: 481
X-Cache: MISS from proxy2.gbateam.com
Via: 1.0 proxy2.gbateam.com (squid/3.1.6)
Proxy-Connection: keep-alive

<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><soap:Fault><soap:Code><soap:Value>soap:Receiver</soap:Value></soap:Code><soap:Reason><soap:Text xml:lang="en">Server was unable to process request. ---> Root element is missing.</soap:Text></soap:Reason><soap:Detail /></soap:Fault></soap:Body></soap:Envelope>

POST http://selectserver.bentley.com/bss/ws/usagelogging.asmx HTTP/1.0
User-Agent: BSIlm/0.9.0.0
Host: selectserver.bentley.com
Content-Type: text/xml; charset=UTF-8
Proxy-Connection: Keep-Alive
Pragma: no-cache
Content-Length: 8153
SOAPAction: "http://bentley.com/selectserver/webservices/ReportUsageEntries"

<soap:Envelope.... ></soap:Envelope>

HTTP/1.0 200 OK
Date: Tue, 10 Aug 2010 13:40:43 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private, max-age=0
Content-Type: text/xml; charset=utf-8
Content-Length: 715
X-Cache: MISS from proxy2.gbateam.com
Via: 1.0 proxy2.gbateam.com (squid/3.1.6)
Proxy-Connection: keep-alive

<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><ReportUsageEntriesResponse xmlns="http://bentley.com/selectserver/webservices/"><ReportUsageEntriesResult><Status>0</Status><LicenseAvaliable>1</LicenseAvaliable><ProductName>MicroStation</ProductName><Ack>MHd0oUWqXDp3tB89iGrAbXpR63A=</Ack><CompanyName>George Butler & Associates</CompanyName><SiteID>4012052</SiteID><SelectServerSerialNumber>70000661800020</SelectServerSerialNumber><LicType>1</LicType></ReportUsageEntriesResult></ReportUsageEntriesResponse></soap:Body></soap:Envelope>

POST http://selectserver.bentley.com/bss/ws/usagelogging.asmx HTTP/1.0
User-Agent: BSIlm/0.9.0.0
Host: selectserver.bentley.com
Content-Length: 0
Proxy-Connection: Keep-Alive
Pragma: no-cache

HTTP/1.0 500 Internal Server Error
Date: Tue, 10 Aug 2010 13:40:44 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private
Content-Type: application/soap+xml; charset=utf-8
Content-Length: 481
X-Cache: MISS from proxy2.gbateam.com
Via: 1.0 proxy2.gbateam.com (squid/3.1.6)
Proxy-Connection: keep-alive

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Received on Tue Aug 10 2010 - 14:19:01 MDT

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