On Tuesday 12 August 2008, Carsten Bock wrote:
> Let me double check this. In our setup, this works properly (or at least
> no problem known); and the from headers in the reply is right as well.
> One difference may be, that we use uac_replace_from purely in
> branch_route() and not in the request route itself.
It's what I do now.

> I can double check your problem tomorrow (i'm not at the office today)
> and, if i find something, update the patch.
It needed an additional patch to make it set the msg_id to the current
reply_id. I also changed the DBG messages. Patch is against 1.2+svn4682.

See below for the complete working patch.

diff -u openser-1.2-orig/modules/uac/uac.c openser-1.2/modules/uac/uac.c
--- openser-1.2-orig/modules/uac/uac.c  2008-08-12 15:55:12.000000000 +0200
+++ openser-1.2/modules/uac/uac.c       2008-08-12 13:26:27.000000000 +0200
@@ -81,9 +81,9 @@
 /* Exported functions */
 static cmd_export_t cmds[]={
        {"uac_replace_from",  w_replace_from2,  2, fixup_replace_from2,
-                       REQUEST_ROUTE },
+                       REQUEST_ROUTE | BRANCH_ROUTE },
        {"uac_replace_from",  w_replace_from1,  1, fixup_replace_from1,
-                       REQUEST_ROUTE },
+                       REQUEST_ROUTE | BRANCH_ROUTE },
        {"uac_restore_from",  w_restore_from,   0,                  0,
                        REQUEST_ROUTE },
        {"uac_auth",          w_uac_auth,       0,                  0,
diff -u openser-1.2-orig/modules/uac/from.c openser-1.2/modules/uac/from.c
--- openser-1.2-orig/modules/uac/from.c 2007-10-22 11:48:48.000000000 +0200
+++ openser-1.2/modules/uac/from.c      2008-08-12 15:56:42.000000000 +0200
@@ -61,6 +61,8 @@

 #define text3B64_len(_l)   ( ( ((_l)+2)/3 ) << 2 )

+/* The reply, were the From-Line was replaced. */
+static unsigned int msg_id = 0;

 void init_from_replacer()
 {
@@ -564,6 +566,12 @@
                        "FROM hdr\n");
                return;
        }
+
+       DBG("DBG:uac::restore_from_reply: current id = %d, code %d (last id 
%d)\n", rpl->id, p->code, msg_id);
+       if (msg_id == rpl->id) {
+               DBG("DBG:uac::restore_from_reply: No change, already done!\n");
+               return;
+       }

        /* duplicate the new from value */
        new_val.s = pkg_malloc( req->from->len );
@@ -589,6 +597,9 @@
                LOG(L_ERR,"ERROR:uac:restore_from_reply: insert new lump 
failed\n");
                return;
        }
+
+       /* Mark this id as replied to prevent multiple From headers in replies 
*/
+       msg_id = rpl->id;
 }


-- 
Met vriendelijke groet,


Alex Hermann
SpeakUp
T: 088-SPEAKUP (088-7732587)
F: 088-7732588

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