[asterisk-dev] [Code Review] 3514: res_pjsip_refer: Add Referred-By header on INVITE for blind transfers.

[Mark Michelson]

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Ship it!


Ship It!

- Mark Michelson


On April 30, 2014, 11:04 p.m., rmudgett wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviewboard.asterisk.org/r/3514/
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> (Updated April 30, 2014, 11:04 p.m.)
> 
> 
> Review request for Asterisk Developers.
> 
> 
> Bugs: ASTERISK-23501
>     https://issues.asterisk.org/jira/browse/ASTERISK-23501
> 
> 
> Repository: Asterisk
> 
> 
> Description
> -------
> 
> Per rfc3892, the Referred-By header in a REFER must be copied into the referenced request (IE. The outgoing INVITE to the transfer target).
> 
> * Automatically put the Referred-By header in the outgoing INVITE message if the SIPREFERREDBYHDR channel variable is defined with a value.
> 
> * Made chan_sip.c:get_refer_info() set SIPREFERREDBYHDR for inheritance so chan_pjsip has a better chance to interoperate.
> 
> * Fixed refer_blind_callback() and refer_incoming_refer_request() to not modify the data in the pointer returned by pjsip_msg_find_hdr_by_name().  It seems wrong to modify that data since the calling routine doesn't own the buffer.
> 
> 
> Diffs
> -----
> 
>   /branches/12/res/res_pjsip_refer.c 413157 
>   /branches/12/channels/chan_sip.c 413157 
> 
> Diff: https://reviewboard.asterisk.org/r/3514/diff/
> 
> 
> Testing
> -------
> 
> The testsuite/tests/channels/pjsip/transfers/blind_transfer/caller_refer_only test now passes with this patch and the minor modification to allow SIPREFERREDBYHDR to have the optional inheritance '_' prefixes added.
> 
> Index: tests/channels/pjsip/transfers/blind_transfer/caller_refer_only/test-config.yaml
> ===================================================================
> --- tests/channels/pjsip/transfers/blind_transfer/caller_refer_only/test-config.yaml	(revision 5006)
> +++ tests/channels/pjsip/transfers/blind_transfer/caller_refer_only/test-config.yaml	(working copy)
> @@ -104,7 +104,7 @@
>                  match:
>                      Event: 'VarSet'
>                      Channel: 'PJSIP/bob-.{8}'
> -                    Variable: 'SIPREFERREDBYHDR'
> +                    Variable: '_{0,2}SIPREFERREDBYHDR'
>                      Value: 'alice <sip:alice at 127.0.0.1>'
>              count: 2
>          -
> @@ -112,7 +112,7 @@
>              conditions:
>                  match:
>                      Event: 'VarSet'
> -                    Variable: 'SIPREFERTOHDR'
> +                    Variable: '_{0,2}SIPREFERTOHDR'
>                      Value: 'sip:charlie at 127.0.0.1'
>              count: 2
>          -
> 
> 
> Thanks,
> 
> rmudgett
> 
>

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