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Merged revisions 284002 via svnmerge from

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https://origsvn.digium.com/svn/asterisk/branches/1.6.2

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  r284002 | dvossel | 2010-08-27 17:27:50 -0500 (Fri, 27 Aug 2010) | 14 lines
  
  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)
  ........
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@284032 65c4cc65-6c06-0410-ace0-fbb531ad65f3
certified/1.8.6
David Vossel 15 years ago
parent f222d17fcf
commit 962f12b524
1 changed files with 67 additions and 26 deletions
Show Stats Download Patch File Download Diff File

93
channels/chan_sip.c
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@ -22907,7 +22907,6 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
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;
@ -23038,51 +23037,93 @@ static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req,
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 */
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);
}
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)) {
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 {
p->subscribed = subscribed;
}
} else if (!strcmp(event, "message-summary")) {
if (!ast_strlen_zero(acceptheader) && strcmp(acceptheader, "application/simple-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);

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