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Posted to issues@trafficserver.apache.org by "Leif Hedstrom (JIRA)" <ji...@apache.org> on 2011/06/21 01:48:48 UTC

[jira] [Commented] (TS-847) Forward proxy: Can't create SSL connection to older Subversion Servers.

    [ https://issues.apache.org/jira/browse/TS-847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13052282#comment-13052282 ] 

Leif Hedstrom commented on TS-847:
----------------------------------

Did a few tracers (it certainly seems a lot more difficult to reproduce this with tracers on, so perhaps a race / timing issue). First is request that succeeds:

{code}
+++++++++ Proxy's Request +++++++++
-- State Machine Id: 173
CONNECT / HTTP/1.1
User-Agent: SVN/1.6.16 (r1073529) neon/0.29.5
Host: gar.svn.sourceforge.net
Client-ip: 127.0.0.1
X-Forwarded-For: 127.0.0.1
Via: http/1.1 loki.ogre.com[C0A8C90E] (ApacheTrafficServer/3.1.0-unstable [uSc ])

[Jun 20 17:44:43.914] Server {139680396424960} DEBUG: (http_trans) Next action next; HttpTransact::HandleResponse
[Jun 20 17:44:43.914] Server {139680396424960} DEBUG: (http) [173] State Transition: API_OS_DNS -> ORIGIN_SERVER_RAW_OPEN
[Jun 20 17:44:43.914] Server {139680396424960} DEBUG: (http_track) entered inside do_http_server_open
[Jun 20 17:44:43.914] Server {139680396424960} DEBUG: (http) [173] open connection to gar.svn.sourceforge.net: 216.34.181.177
[Jun 20 17:44:43.914] Server {139680396424960} DEBUG: (http_seq) [HttpSM::do_http_server_open] Sending request to server
[Jun 20 17:44:43.914] Server {139680396424960} DEBUG: (http) calling netProcessor.connect_s
[Jun 20 17:44:43.965] Server {139680396424960} DEBUG: (http) [173] [HttpSM::main_handler, NET_EVENT_OPEN]
[Jun 20 17:44:43.965] Server {139680396424960} DEBUG: (http) [173] [&HttpSM::state_raw_http_server_open, NET_EVENT_OPEN]
[Jun 20 17:44:43.965] Server {139680396424960} DEBUG: (http_trans) [HttpTransact::OriginServerRawOpen]
[Jun 20 17:44:43.965] Server {139680396424960} DEBUG: (http_trans) [WUTS code generation] Hit/Miss: 49, Log: 51, Hier: 50, Status: 200
[Jun 20 17:44:43.965] Server {139680396424960} DEBUG: (http_trans) Adding Server: ATS/3.1.0-unstable
{code}


and here's a request that failed:

{code}
+++++++++ Proxy's Request +++++++++
-- State Machine Id: 174
CONNECT / HTTP/1.1
User-Agent: SVN/1.6.16 (r1073529) neon/0.29.5
Host: gar.svn.sourceforge.net
Client-ip: 127.0.0.1
X-Forwarded-For: 127.0.0.1
Via: http/1.1 loki.ogre.com[C0A8C90E] (ApacheTrafficServer/3.1.0-unstable [uSc ])

[Jun 20 17:44:44.388] Server {139680397477632} DEBUG: (http_trans) Next action next; HttpTransact::HandleResponse
[Jun 20 17:44:44.388] Server {139680397477632} DEBUG: (http) [174] State Transition: API_OS_DNS -> ORIGIN_SERVER_RAW_OPEN
[Jun 20 17:44:44.388] Server {139680397477632} DEBUG: (http_track) entered inside do_http_server_open
[Jun 20 17:44:44.388] Server {139680397477632} DEBUG: (http) [174] open connection to gar.svn.sourceforge.net: 216.34.181.177
[Jun 20 17:44:44.388] Server {139680397477632} DEBUG: (http_seq) [HttpSM::do_http_server_open] Sending request to server
[Jun 20 17:44:44.388] Server {139680397477632} DEBUG: (http) calling netProcessor.connect_s
[Jun 20 17:44:44.428] Server {139680397477632} DEBUG: (http) [174] [HttpSM::main_handler, NET_EVENT_OPEN_FAILED]
[Jun 20 17:44:44.428] Server {139680397477632} DEBUG: (http) [174] [&HttpSM::state_raw_http_server_open, NET_EVENT_OPEN_FAILED]
[Jun 20 17:44:44.428] Server {139680397477632} DEBUG: (http_trans) [HttpTransact::OriginServerRawOpen]
[Jun 20 17:44:44.428] Server {139680397477632} DEBUG: (http_trans) [WUTS code generation] Hit/Miss: 49, Log: 117, Hier: 50, Status: 805
[Jun 20 17:44:44.428] Server {139680397477632} DEBUG: (http_trans) Adding Server: ATS/3.1.0-unstable
+++++++++ Proxy's Response 2 +++++++++
{code}

> Forward proxy: Can't create SSL connection to older Subversion Servers.
> -----------------------------------------------------------------------
>
>                 Key: TS-847
>                 URL: https://issues.apache.org/jira/browse/TS-847
>             Project: Traffic Server
>          Issue Type: Bug
>    Affects Versions: 3.1.0, 3.0.0
>            Reporter: Igor Galić
>         Attachments: 01_fail_ats_sfnet.cap, 02_pass_squid_sfnet.cap, 03_pass_ats_asf.cap, 04_pass_squid_asf.cap
>
>
> When trying to access older Subversion (1.6.9, 1.5.1 verified) servers through SSL via the Forward proxy, I'll get a failure such as:
> {noformat}
> igalic@knock ~/src % svn co https://gar.svn.sourceforge.net/svnroot/gar/csw/mgar/gar/
> svn: PROPFIND of '/svnroot/gar/!svn/bln/14844': Could not create SSL connection through proxy server: 502 Tunnel Connection Failed (https://gar.svn.sourceforge.net)
> 1 igalic@knock ~/src %
> {noformat}
> The squid.blog says:
> {noformat}
> 1308609250.117 1004 127.0.0.1 TCP_MISS/200 4664 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609250.642 524 127.0.0.1 TCP_MISS/200 1335 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609251.167 525 127.0.0.1 TCP_MISS/200 1031 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609251.689 522 127.0.0.1 TCP_MISS/200 1095 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609252.231 541 127.0.0.1 TCP_MISS/200 1335 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609252.756 524 127.0.0.1 TCP_MISS/200 1031 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609253.285 528 127.0.0.1 TCP_MISS/200 1095 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609253.814 528 127.0.0.1 TCP_MISS/200 1335 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609254.345 530 127.0.0.1 TCP_MISS/200 1111 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net - -
> 1308609254.416 70 127.0.0.1 ERR_CONNECT_FAIL/502 454 CONNECT gar.svn.sourceforge.net:443/ - DIRECT/gar.svn.sourceforge.net text/html -
> {noformat}
> While the error log says:
> {noformat}
> 20110621.00h25m14s RESPONSE: sent 127.0.0.1 status 502 (Tunnel Connection Failed) for 'gar.svn.sourceforge.net:443/'
> {noformat}
> With newer versions of the Subversion server this works out fine, example the ASF's server:
> {noformat}
> igalic@knock ~/src % svn co https://svn.apache.org/repos/asf/trafficserver/plugins/header_filter/
> A    header_filter/example.conf
> A    header_filter/rules.h
> A    header_filter/NOTICE
> A    header_filter/header_filter.cc
> A    header_filter/LICENSE
> A    header_filter/STATUS
> A    header_filter/lulu.h
> A    header_filter/CHANGES
> A    header_filter/Makefile
> A    header_filter/README
> A    header_filter/rules.cc
> Checked out revision 1137808.
> igalic@knock ~/src %
> {noformat}
> I wouldn't submit this bug in the first place, if it didn't work with Squid either. Alas Squid passes with flying colours! Attatched you can find wireshark captures for the four scenarios:
> * Failure with ATS (old subversion server: sf.net)
> * Success with Squid (same old subversion server: sf.net)
> * Success with ATS (new Subversion server: ASF)
> * Success with Squid (same new Subversion server: ASF)
> To force subversion through a proxy you need to edit ~/.subversion/servers
> {noformat}
> [global]
> http-proxy-host = localhost
> http-proxy-port = 8080
> {noformat}

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