/** Invite us to the focus callback */
static gboolean
process_invite_conf_focus_response(struct sipe_core_private *sipe_private,
struct sipmsg *msg,
SIPE_UNUSED_PARAMETER struct transaction *trans)
{
struct sip_session *session = NULL;
char *focus_uri = parse_from(sipmsg_find_header(msg, "To"));
session = sipe_session_find_conference(sipe_private, focus_uri);
if (!session) {
SIPE_DEBUG_INFO("process_invite_conf_focus_response: unable to find conf session with focus=%s", focus_uri);
g_free(focus_uri);
return FALSE;
}
if (!session->focus_dialog) {
SIPE_DEBUG_INFO_NOFORMAT("process_invite_conf_focus_response: session's focus_dialog is NULL");
g_free(focus_uri);
return FALSE;
}
sipe_dialog_parse(session->focus_dialog, msg, TRUE);
if (msg->response >= 200) {
/* send ACK to focus */
session->focus_dialog->cseq = 0;
sip_transport_ack(sipe_private, session->focus_dialog);
session->focus_dialog->outgoing_invite = NULL;
session->focus_dialog->is_established = TRUE;
}
if (msg->response >= 400) {
SIPE_DEBUG_INFO_NOFORMAT("process_invite_conf_focus_response: INVITE response is not 200. Failed to join focus.");
/* @TODO notify user of failure to join focus */
sipe_session_remove(sipe_private, session);
g_free(focus_uri);
return FALSE;
} else if (msg->response == 200) {
sipe_xml *xn_response = sipe_xml_parse(msg->body, msg->bodylen);
const gchar *code = sipe_xml_attribute(xn_response, "code");
if (sipe_strequal(code, "success")) {
/* subscribe to focus */
sipe_subscribe_conference(sipe_private, session, FALSE);
}
sipe_xml_free(xn_response);
}
g_free(focus_uri);
return TRUE;
}
/** Invite counterparty to join conference callback */
static gboolean
process_invite_conf_response(struct sipe_core_private *sipe_private,
struct sipmsg *msg,
SIPE_UNUSED_PARAMETER struct transaction *trans)
{
struct sip_dialog *dialog = g_new0(struct sip_dialog, 1);
dialog->callid = g_strdup(sipmsg_find_header(msg, "Call-ID"));
dialog->cseq = sipmsg_parse_cseq(msg);
dialog->with = parse_from(sipmsg_find_header(msg, "To"));
sipe_dialog_parse(dialog, msg, TRUE);
if (msg->response >= 200) {
/* send ACK to counterparty */
dialog->cseq--;
sip_transport_ack(sipe_private, dialog);
dialog->outgoing_invite = NULL;
dialog->is_established = TRUE;
}
if (msg->response >= 400) {
SIPE_DEBUG_INFO("process_invite_conf_response: INVITE response is not 200. Failed to invite %s.", dialog->with);
/* @TODO notify user of failure to invite counterparty */
sipe_dialog_free(dialog);
return FALSE;
}
if (msg->response >= 200) {
struct sip_session *session = sipe_session_find_im(sipe_private, dialog->with);
struct sip_dialog *im_dialog = sipe_dialog_find(session, dialog->with);
/* close IM session to counterparty */
if (im_dialog) {
sip_transport_bye(sipe_private, im_dialog);
sipe_dialog_remove(session, dialog->with);
}
}
sipe_dialog_free(dialog);
return TRUE;
}
void process_incoming_bye(struct sipe_core_private *sipe_private,
struct sipmsg *msg)
{
const gchar *callid = sipmsg_find_header(msg, "Call-ID");
gchar *from = parse_from(sipmsg_find_header(msg, "From"));
struct sip_session *session;
struct sip_dialog *dialog;
#ifdef HAVE_VV
if (is_media_session_msg(sipe_private->media_call, msg)) {
// BYE ends a media call
sipe_media_hangup(sipe_private->media_call);
}
#endif
/* collect dialog identification
* we need callid, ourtag and theirtag to unambiguously identify dialog
*/
/* take data before 'msg' will be modified by sip_transport_response */
dialog = g_new0(struct sip_dialog, 1);
dialog->callid = g_strdup(callid);
dialog->cseq = sipmsg_parse_cseq(msg);
dialog->with = g_strdup(from);
sipe_dialog_parse(dialog, msg, FALSE);
sip_transport_response(sipe_private, msg, 200, "OK", NULL);
session = sipe_session_find_chat_or_im(sipe_private, callid, from);
if (!session) {
SIPE_DEBUG_INFO_NOFORMAT("process_incoming_bye: couldn't find session. Ignoring");
sipe_dialog_free(dialog);
g_free(from);
return;
}
SIPE_DEBUG_INFO("process_incoming_bye: session found (chat ID %s)",
(session->chat_session && session->chat_session->id) ?
session->chat_session->id : "<NO CHAT>");
if (session->chat_session &&
(session->chat_session->type == SIPE_CHAT_TYPE_MULTIPARTY) &&
session->chat_session->id &&
!g_ascii_strcasecmp(from, session->chat_session->id))
sipe_chat_set_roster_manager(session, NULL);
sipe_im_cancel_unconfirmed(sipe_private, session, callid, from);
/* This what BYE is essentially for - terminating dialog */
sipe_dialog_remove_3(session, dialog);
sipe_dialog_free(dialog);
if (session->chat_session) {
if ((session->chat_session->type == SIPE_CHAT_TYPE_CONFERENCE) &&
!g_ascii_strcasecmp(from, session->im_mcu_uri)) {
SIPE_DEBUG_INFO("process_incoming_bye: disconnected from conference %s",
session->im_mcu_uri);
sipe_conf_immcu_closed(sipe_private, session);
} else if (session->chat_session->type == SIPE_CHAT_TYPE_MULTIPARTY) {
SIPE_DEBUG_INFO_NOFORMAT("process_incoming_bye: disconnected from multiparty chat");
sipe_backend_chat_remove(session->chat_session->backend,
from);
}
}
g_free(from);
}
/** Invite us to the focus callback */
static gboolean
process_invite_conf_focus_response(struct sipe_core_private *sipe_private,
struct sipmsg *msg,
SIPE_UNUSED_PARAMETER struct transaction *trans)
{
struct sip_session *session = NULL;
char *focus_uri = parse_from(sipmsg_find_header(msg, "To"));
session = sipe_session_find_conference(sipe_private, focus_uri);
if (!session) {
SIPE_DEBUG_INFO("process_invite_conf_focus_response: unable to find conf session with focus=%s", focus_uri);
g_free(focus_uri);
return FALSE;
}
if (!session->focus_dialog) {
SIPE_DEBUG_INFO_NOFORMAT("process_invite_conf_focus_response: session's focus_dialog is NULL");
g_free(focus_uri);
return FALSE;
}
sipe_dialog_parse(session->focus_dialog, msg, TRUE);
if (msg->response >= 200) {
/* send ACK to focus */
session->focus_dialog->cseq = 0;
sip_transport_ack(sipe_private, session->focus_dialog);
session->focus_dialog->outgoing_invite = NULL;
session->focus_dialog->is_established = TRUE;
}
if (msg->response >= 400) {
gchar *reason = sipmsg_get_ms_diagnostics_reason(msg);
SIPE_DEBUG_INFO_NOFORMAT("process_invite_conf_focus_response: INVITE response is not 200. Failed to join focus.");
sipe_backend_notify_error(SIPE_CORE_PUBLIC,
_("Failed to join the conference"),
reason ? reason : _("no reason given"));
g_free(reason);
sipe_session_remove(sipe_private, session);
g_free(focus_uri);
return FALSE;
} else if (msg->response == 200) {
sipe_xml *xn_response = sipe_xml_parse(msg->body, msg->bodylen);
const gchar *code = sipe_xml_attribute(xn_response, "code");
if (sipe_strequal(code, "success")) {
/* subscribe to focus */
sipe_subscribe_conference(sipe_private,
session->chat_session->id,
FALSE);
#ifdef HAVE_VV
if (session->is_call)
sipe_core_media_connect_conference(SIPE_CORE_PUBLIC,
session->chat_session);
#endif
}
sipe_xml_free(xn_response);
}
g_free(focus_uri);
return TRUE;
}
void process_incoming_invite(struct sipe_core_private *sipe_private,
struct sipmsg *msg)
{
gchar *newTag;
const gchar *oldHeader;
gchar *newHeader;
gboolean is_multiparty = FALSE;
gboolean was_multiparty = TRUE;
gboolean just_joined = FALSE;
gchar *from;
const gchar *callid = sipmsg_find_header(msg, "Call-ID");
const gchar *roster_manager = sipmsg_find_header(msg, "Roster-Manager");
const gchar *end_points_hdr = sipmsg_find_header(msg, "EndPoints");
const gchar *trig_invite = sipmsg_find_header(msg, "TriggeredInvite");
const gchar *content_type = sipmsg_find_header(msg, "Content-Type");
const gchar *subject = sipmsg_find_header(msg, "Subject");
GSList *end_points = NULL;
struct sip_session *session;
struct sip_dialog *dialog;
const gchar *ms_text_format;
gboolean dont_delay = FALSE;
#ifdef HAVE_VV
if (g_str_has_prefix(content_type, "multipart/alternative")) {
sipe_mime_parts_foreach(content_type, msg->body, sipe_invite_mime_cb, msg);
/* Reload Content-Type to get type of the selected message part */
content_type = sipmsg_find_header(msg, "Content-Type");
}
#endif
if (g_str_has_prefix(content_type, "multipart/mixed")) {
sipe_mime_parts_foreach(content_type, msg->body, sipe_invite_mime_mixed_cb, msg);
/* Reload Content-Type to get type of the selected message part */
content_type = sipmsg_find_header(msg, "Content-Type");
}
/* Lync 2010 file transfer */
if (g_str_has_prefix(content_type, "application/ms-filetransfer+xml")) {
sip_transport_response(sipe_private, msg, 488, "Not Acceptable Here", NULL);
return;
}
/* Invitation to join conference */
if (g_str_has_prefix(content_type, "application/ms-conf-invite+xml")) {
process_incoming_invite_conf(sipe_private, msg);
return;
}
#ifdef HAVE_VV
/* Invitation to audio call */
if (msg->body && strstr(msg->body, "m=audio")) {
process_incoming_invite_call(sipe_private, msg);
return;
}
#endif
/* Only accept text invitations */
if (msg->body && !(strstr(msg->body, "m=message") || strstr(msg->body, "m=x-ms-message"))) {
sip_transport_response(sipe_private, msg, 501, "Not implemented", NULL);
return;
}
// TODO There *must* be a better way to clean up the To header to add a tag...
SIPE_DEBUG_INFO_NOFORMAT("Adding a Tag to the To Header on Invite Request...");
oldHeader = sipmsg_find_header(msg, "To");
newTag = gentag();
newHeader = g_strdup_printf("%s;tag=%s", oldHeader, newTag);
g_free(newTag);
sipmsg_remove_header_now(msg, "To");
sipmsg_add_header_now(msg, "To", newHeader);
g_free(newHeader);
if (end_points_hdr) {
end_points = sipmsg_parse_endpoints_header(end_points_hdr);
if (g_slist_length(end_points) > 2) {
is_multiparty = TRUE;
}
}
if (trig_invite && !g_ascii_strcasecmp(trig_invite, "TRUE")) {
is_multiparty = TRUE;
}
/* Multiparty session */
session = sipe_session_find_chat_by_callid(sipe_private, callid);
if (is_multiparty) {
if (session) {
if (session->chat_session) {
/* Update roster manager for existing multiparty session */
if (roster_manager)
sipe_chat_set_roster_manager(session, roster_manager);
} else {
gchar *chat_title = sipe_chat_get_name();
/* Convert IM session to multiparty session */
g_free(session->with);
session->with = NULL;
was_multiparty = FALSE;
session->chat_session = sipe_chat_create_session(SIPE_CHAT_TYPE_MULTIPARTY,
roster_manager,
chat_title);
g_free(chat_title);
}
} else {
/* New multiparty session */
session = sipe_session_add_chat(sipe_private,
NULL,
TRUE,
roster_manager);
}
/* Create chat */
if (!session->chat_session->backend) {
gchar *self = sip_uri_self(sipe_private);
session->chat_session->backend = sipe_backend_chat_create(SIPE_CORE_PUBLIC,
session->chat_session,
session->chat_session->title,
self);
g_free(self);
}
}
/* IM session */
from = parse_from(sipmsg_find_header(msg, "From"));
if (!session)
session = sipe_session_find_or_add_im(sipe_private, from);
/* session is now initialized */
g_free(session->callid);
session->callid = g_strdup(callid);
if (is_multiparty && end_points) {
gchar *to = parse_from(sipmsg_find_header(msg, "To"));
GSList *entry = end_points;
while (entry) {
struct sipendpoint *end_point = entry->data;
entry = entry->next;
if (!g_ascii_strcasecmp(from, end_point->contact) ||
!g_ascii_strcasecmp(to, end_point->contact))
continue;
dialog = sipe_dialog_find(session, end_point->contact);
if (dialog) {
g_free(dialog->theirepid);
dialog->theirepid = end_point->epid;
end_point->epid = NULL;
} else {
dialog = sipe_dialog_add(session);
dialog->callid = g_strdup(session->callid);
dialog->with = end_point->contact;
end_point->contact = NULL;
dialog->theirepid = end_point->epid;
end_point->epid = NULL;
just_joined = TRUE;
/* send triggered INVITE */
sipe_im_invite(sipe_private, session, dialog->with, NULL, NULL, NULL, TRUE);
}
}
g_free(to);
}
if (end_points) {
GSList *entry = end_points;
while (entry) {
struct sipendpoint *end_point = entry->data;
entry = entry->next;
g_free(end_point->contact);
g_free(end_point->epid);
g_free(end_point);
}
g_slist_free(end_points);
}
dialog = sipe_dialog_find(session, from);
if (dialog) {
sipe_im_cancel_dangling(sipe_private, session, dialog, from,
sipe_im_reenqueue_unconfirmed);
/* dialog is no longer valid */
} else {
just_joined = TRUE;
}
dialog = sipe_dialog_add(session);
dialog->with = g_strdup(from);
dialog->callid = g_strdup(session->callid);
dialog->is_established = TRUE;
sipe_dialog_parse(dialog, msg, FALSE);
if (is_multiparty && !was_multiparty) {
/* add current IM counterparty to chat */
sipe_backend_chat_add(session->chat_session->backend,
sipe_dialog_first(session)->with,
FALSE);
}
/* add inviting party to chat */
if (just_joined && session->chat_session) {
sipe_backend_chat_add(session->chat_session->backend,
from,
TRUE);
}
if (!is_multiparty && subject)
sipe_im_topic(sipe_private, session, subject);
/* ms-text-format: text/plain; charset=UTF-8;msgr=WAAtAE0...DIADQAKAA0ACgA;ms-body=SGk= */
/* This used only in 2005 official client, not 2007 or Reuters.
Disabled for most cases as interfering with audit of messages which only is applied to regular MESSAGEs.
Only enabled for 2005 multiparty chats as otherwise the first message got lost completely.
*/
/* also enabled for 2005 file transfer. Didn't work otherwise. */
ms_text_format = sipmsg_find_header(msg, "ms-text-format");
if (is_multiparty ||
(ms_text_format && g_str_has_prefix(ms_text_format, "text/x-msmsgsinvite")) )
{
if (ms_text_format) {
if (g_str_has_prefix(ms_text_format, "text/x-msmsgsinvite"))
{
dont_delay = TRUE;
}
else if (g_str_has_prefix(ms_text_format, "text/plain") || g_str_has_prefix(ms_text_format, "text/html"))
{
/* please do not optimize logic inside as this code may be re-enabled for other cases */
gchar *html = get_html_message(ms_text_format, NULL);
if (html) {
if (is_multiparty) {
sipe_backend_chat_message(SIPE_CORE_PUBLIC,
session->chat_session->backend,
from,
0,
html);
} else {
sipe_backend_im_message(SIPE_CORE_PUBLIC,
from,
html);
}
g_free(html);
sipmsg_add_header(msg, "Supported", "ms-text-format"); /* accepts received message */
dont_delay = TRUE;
}
}
}
}
g_free(from);
sipmsg_add_header(msg, "Supported", "com.microsoft.rtc-multiparty");
if (dont_delay || !SIPE_CORE_PRIVATE_FLAG_IS(MPOP)) {
send_invite_response(sipe_private, msg);
} else {
delayed_invite_response(sipe_private, msg, session->callid);
}
}
