chan_sip: Expose read-only access to the full SIP INVITE Request-URI

Provide a way to get the contents of the the Request URI from the initial SIP
INVITE in dial plan function call. (In this case "${CHANNEL(ruri)}")

ASTERISK-27278
Reported by: David J. Pryke
Tested by: David J. Pryke

Change-Id: I1dd4d6988eed1b6c98a9701e0e833a15ef0dac3e

diff --git a/channels/sip/dialplan_functions.c b/channels/sip/dialplan_functions.c
index af443fd5102ef0907e37eb9555a52b442004f4cd..7a1a4435a74a8afcfbde188f59fe7d13e40594d9 100644 (file)
--- a/channels/sip/dialplan_functions.c
+++ b/channels/sip/dialplan_functions.c
@@ -41,6 +41,9 @@
                <enum name="uri">
                        <para>R/O Get the URI from the Contact: header.</para>
                </enum>
+               <enum name="ruri">
+                       <para>R/O Get the Request-URI from the INVITE header.</para>
+               </enum>
                <enum name="useragent">
                        <para>R/O Get the useragent.</para>
                </enum>
@@ -164,6 +167,9 @@ int sip_acf_channel_read(struct ast_channel *chan, const char *funcname, char *p
                ast_copy_string(buf, p->from, buflen);
        } else if (!strcasecmp(args.param, "uri")) {
                ast_copy_string(buf, p->uri, buflen);
+       } else if (!strcasecmp(args.param, "ruri")) {
+               char *tmpruri = REQ_OFFSET_TO_STR(&p->initreq, rlpart2);
+               ast_copy_string(buf, tmpruri, buflen);
        } else if (!strcasecmp(args.param, "useragent")) {
                ast_copy_string(buf, p->useragent, buflen);
        } else if (!strcasecmp(args.param, "peername")) {