[asterisk-commits] dvossel: branch 1.6.2 r284002 - in /branches/1.6.2: ./ channels/chan_sip.c

SVN commits to the Asterisk project asterisk-commits at lists.digium.com
Fri Aug 27 17:27:57 CDT 2010


Author: dvossel
Date: Fri Aug 27 17:27:50 2010
New Revision: 284002

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=284002
Log:
Merged revisions 283960 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r283960 | dvossel | 2010-08-27 17:17:26 -0500 (Fri, 27 Aug 2010) | 8 lines
  
  Parse all "Accept" headers for SIP SUBSCRIBE requests.
  
  (closes issue #17758)
  Reported by: ibc
  Patches:
        multiple_accept_headers_1.4.diff uploaded by dvossel (license 671)
........

Modified:
    branches/1.6.2/   (props changed)
    branches/1.6.2/channels/chan_sip.c

Propchange: branches/1.6.2/
------------------------------------------------------------------------------
--- branch-1.4-merged (original)
+++ branch-1.4-merged Fri Aug 27 17:27:50 2010
@@ -1,1 +1,1 @@
-/branches/1.4:1-279056,279206,279945,280088,280341,280448,280811,280982,281390,281566,281762,281819,281911,282129,282430,282729,282893,283048,283123,283380,283690,283880
+/branches/1.4:1-279056,279206,279945,280088,280341,280448,280811,280982,281390,281566,281762,281819,281911,282129,282430,282729,282893,283048,283123,283380,283690,283880,283960

Modified: branches/1.6.2/channels/chan_sip.c
URL: http://svnview.digium.com/svn/asterisk/branches/1.6.2/channels/chan_sip.c?view=diff&rev=284002&r1=284001&r2=284002
==============================================================================
--- branches/1.6.2/channels/chan_sip.c (original)
+++ branches/1.6.2/channels/chan_sip.c Fri Aug 27 17:27:50 2010
@@ -21356,7 +21356,6 @@
 	int firststate = AST_EXTENSION_REMOVED;
 	struct sip_peer *authpeer = NULL;
 	const char *eventheader = get_header(req, "Event");	/* Get Event package name */
-	const char *acceptheader = get_header(req, "Accept");
 	int resubscribe = (p->subscribed != NONE);
 	char *temp, *event;
 	struct ao2_iterator i;
@@ -21482,51 +21481,94 @@
 
 	if (!strcmp(event, "presence") || !strcmp(event, "dialog")) { /* Presence, RFC 3842 */
 		unsigned int pidf_xml;
+		const char *accept;
+		int start = 0;
+		enum subscriptiontype subscribed = NONE;
+		const char *unknown_acceptheader = NULL;
 
 		if (authpeer)	/* We do not need the authpeer any more */
 			unref_peer(authpeer, "unref_peer, from handle_request_subscribe (authpeer 2)");
 
 		/* Header from Xten Eye-beam Accept: multipart/related, application/rlmi+xml, application/pidf+xml, application/xpidf+xml */
 
-		pidf_xml = strstr(acceptheader, "application/pidf+xml") ? 1 : 0;
-
-		/* Older versions of Polycom firmware will claim pidf+xml, but really
-		 * they only support xpidf+xml. */
-		if (pidf_xml && strstr(p->useragent, "Polycom")) {
-			p->subscribed = XPIDF_XML;
-		} else if (pidf_xml) {
-			p->subscribed = PIDF_XML;         /* RFC 3863 format */
-		} else if (strstr(acceptheader, "application/dialog-info+xml")) {
-			p->subscribed = DIALOG_INFO_XML;
-			/* IETF draft: draft-ietf-sipping-dialog-package-05.txt */
-		} else if (strstr(acceptheader, "application/cpim-pidf+xml")) {
-			p->subscribed = CPIM_PIDF_XML;    /* RFC 3863 format */
-		} else if (strstr(acceptheader, "application/xpidf+xml")) {
-			p->subscribed = XPIDF_XML;        /* Early pre-RFC 3863 format with MSN additions (Microsoft Messenger) */
-		} else if (ast_strlen_zero(acceptheader)) {
+		accept = __get_header(req, "Accept", &start);
+		while ((subscribed == NONE) && !ast_strlen_zero(accept)) {
+			pidf_xml = strstr(accept, "application/pidf+xml") ? 1 : 0;
+
+			/* Older versions of Polycom firmware will claim pidf+xml, but really
+			 * they only support xpidf+xml. */
+			if (pidf_xml && strstr(p->useragent, "Polycom")) {
+				subscribed = XPIDF_XML;
+			} else if (pidf_xml) {
+				subscribed = PIDF_XML;         /* RFC 3863 format */
+			} else if (strstr(accept, "application/dialog-info+xml")) {
+				subscribed = DIALOG_INFO_XML;
+				/* IETF draft: draft-ietf-sipping-dialog-package-05.txt */
+			} else if (strstr(accept, "application/cpim-pidf+xml")) {
+				subscribed = CPIM_PIDF_XML;    /* RFC 3863 format */
+			} else if (strstr(accept, "application/xpidf+xml")) {
+				subscribed = XPIDF_XML;        /* Early pre-RFC 3863 format with MSN additions (Microsoft Messenger) */
+			} else {
+				unknown_acceptheader = accept;
+			}
+			/* check to see if there is another Accept header present */
+			accept = __get_header(req, "Accept", &start);
+		}
+
+		if (!start) {
 			if (p->subscribed == NONE) { /* if the subscribed field is not already set, and there is no accept header... */
 				transmit_response(p, "489 Bad Event", req);
-  
-				ast_log(LOG_WARNING, "SUBSCRIBE failure: no Accept header: pvt: stateid: %d, laststate: %d, dialogver: %d, subscribecont: '%s', subscribeuri: '%s'\n",
-					p->stateid, p->laststate, p->dialogver, p->subscribecontext, p->subscribeuri);
+				ast_log(LOG_WARNING,"SUBSCRIBE failure: no Accept header: pvt: "
+					"stateid: %d, laststate: %d, dialogver: %d, subscribecont: "
+					"'%s', subscribeuri: '%s'\n",
+					p->stateid,
+					p->laststate,
+					p->dialogver,
+					p->subscribecontext,
+					p->subscribeuri);
 				pvt_set_needdestroy(p, "no Accept header");
 				return 0;
 			}
 			/* if p->subscribed is non-zero, then accept is not obligatory; according to rfc 3265 section 3.1.3, at least.
 			   so, we'll just let it ride, keeping the value from a previous subscription, and not abort the subscription */
-		} else {
+		} else if (subscribed == NONE) {
 			/* Can't find a format for events that we know about */
 			char mybuf[200];
-			snprintf(mybuf, sizeof(mybuf), "489 Bad Event (format %s)", acceptheader);
+			if (!ast_strlen_zero(unknown_acceptheader)) {
+				snprintf(mybuf, sizeof(mybuf), "489 Bad Event (format %s)", unknown_acceptheader);
+			} else {
+				snprintf(mybuf, sizeof(mybuf), "489 Bad Event");
+			}
 			transmit_response(p, mybuf, req);
- 
-			ast_log(LOG_WARNING, "SUBSCRIBE failure: unrecognized format: '%s' pvt: subscribed: %d, stateid: %d, laststate: %d, dialogver: %d, subscribecont: '%s', subscribeuri: '%s'\n",
-				acceptheader, (int)p->subscribed, p->stateid, p->laststate, p->dialogver, p->subscribecontext, p->subscribeuri);
+			ast_log(LOG_WARNING,"SUBSCRIBE failure: unrecognized format:"
+				"'%s' pvt: subscribed: %d, stateid: %d, laststate: %d,"
+				"dialogver: %d, subscribecont: '%s', subscribeuri: '%s'\n",
+				unknown_acceptheader,
+				(int)p->subscribed,
+				p->stateid,
+				p->laststate,
+				p->dialogver,
+				p->subscribecontext,
+				p->subscribeuri);
 			pvt_set_needdestroy(p, "unrecognized format");
 			return 0;
-		}
-	} else if (!strcmp(event, "message-summary")) { 
-		if (!ast_strlen_zero(acceptheader) && strcmp(acceptheader, "application/simple-message-summary")) {
+		} else {
+			p->subscribed = subscribed;
+		}
+	} else if (!strcmp(event, "message-summary")) {
+		int start = 0;
+		int found_supported = 0;
+		const char *acceptheader;
+
+		acceptheader = __get_header(req, "Accept", &start);
+		while (!found_supported && !ast_strlen_zero(acceptheader)) {
+			found_supported = strcmp(acceptheader, "application/simple-message-summary") ? 0 : 1;
+			if (!found_supported && (option_debug > 2)) {
+				ast_log(LOG_DEBUG, "Received SIP mailbox subscription for unknown format: %s\n", acceptheader);
+			}
+			acceptheader = __get_header(req, "Accept", &start);
+		}
+		if (start && !found_supported) {
 			/* Format requested that we do not support */
 			transmit_response(p, "406 Not Acceptable", req);
 			ast_debug(2, "Received SIP mailbox subscription for unknown format: %s\n", acceptheader);
@@ -21535,6 +21577,7 @@
 				unref_peer(authpeer, "unref_peer, from handle_request_subscribe (authpeer 3)");
 			return 0;
 		}
+
 		/* Looks like they actually want a mailbox status 
 		  This version of Asterisk supports mailbox subscriptions
 		  The subscribed URI needs to exist in the dial plan




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