Merged revisions 44392 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.2

........
r44392 | kpfleming | 2006-10-04 16:15:29 -0500 (Wed, 04 Oct 2006) | 3 lines

remove workaround for old Polycom firmware SUBSCRIBE requests
add workaround for new Polycom firmware SUBSCRIBE requests (bug is known to exist in 2.0.1 firmware)

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@44393 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -13873,7 +13873,6 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
 		return 0;
 	} else {
 		/* XXX reduce nesting here */
-
 		/* Initialize tag for new subscriptions */	
 		if (ast_strlen_zero(p->tag))
 			make_our_tag(p->tag, sizeof(p->tag));
@@ -13881,7 +13880,10 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
 		if (!strcmp(event, "presence") || !strcmp(event, "dialog")) { /* Presence, RFC 3842 */
 
 			/* Header from Xten Eye-beam Accept: multipart/related, application/rlmi+xml, application/pidf+xml, application/xpidf+xml */
- 			if (strstr(accept, "application/pidf+xml")) {
+			/* don't supply pidf+xml to Polycom phones until they fix their firmware to
+			   parse it properly
+			*/
+			if (strstr(accept, "application/pidf+xml") && !strstr(p->useragent, "Polycom")) {
  				p->subscribed = PIDF_XML;         /* RFC 3863 format */
  			} else if (strstr(accept, "application/dialog-info+xml")) {
  				p->subscribed = DIALOG_INFO_XML;
@@ -13890,8 +13892,6 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
  				p->subscribed = CPIM_PIDF_XML;    /* RFC 3863 format */
  			} else if (strstr(accept, "application/xpidf+xml")) {
  				p->subscribed = XPIDF_XML;        /* Early pre-RFC 3863 format with MSN additions (Microsoft Messenger) */
- 			} else if (strstr(p->useragent, "Polycom")) {
- 				p->subscribed = XPIDF_XML;        /*  Polycoms subscribe for "event: dialog" but don't include an "accept:" header */
 			} else {
  				/* Can't find a format for events that we know about */
  				transmit_response(p, "489 Bad Event", req);