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integrate XEP-0198 Stream-Management

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* save SM state and send-queue entries on disconnect
* restore SM state and send-queue entries on reconnect

fixes #698

Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>
This commit is contained in:
Steffen Jaeckel 2022-07-05 01:05:58 +02:00
parent fc8ea4ec4f
commit 11f52ad547
1 changed files with 25 additions and 0 deletions
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25
src/xmpp/connection.c
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@ -60,6 +60,8 @@ typedef struct prof_conn_t
{
xmpp_ctx_t* xmpp_ctx;
xmpp_conn_t* xmpp_conn;
xmpp_sm_state_t* sm_state;
char** queued_messages;
gboolean xmpp_in_event_loop;
jabber_conn_status_t conn_status;
xmpp_conn_event_t conn_last_event;
@ -126,6 +128,8 @@ void
connection_init(void)
{
xmpp_initialize();
conn.sm_state = NULL;
conn.queued_messages = NULL;
conn.xmpp_in_event_loop = FALSE;
conn.conn_status = JABBER_DISCONNECTED;
conn.conn_last_event = XMPP_CONN_DISCONNECT;
@ -225,6 +229,13 @@ _conn_apply_settings(const char* const jid, const char* const passwd, const char
}
xmpp_conn_set_certfail_handler(conn.xmpp_conn, _connection_certfail_cb);
if (conn.sm_state) {
if (xmpp_conn_set_sm_state(conn.xmpp_conn, conn.sm_state)) {
log_warning("Had Stream Management state, but libstrophe didn't accept it");
xmpp_free_sm_state(conn.sm_state);
}
conn.sm_state = NULL;
}
return TRUE;
}
@ -955,6 +966,15 @@ _connection_handler(xmpp_conn_t* const xmpp_conn, const xmpp_conn_event_t status
session_login_success(connection_is_secured());
if (conn.queued_messages) {
for (size_t n = 0; conn.queued_messages[n] != NULL; ++n) {
xmpp_send_raw(conn.xmpp_conn, conn.queued_messages[n], strlen(conn.queued_messages[n]));
free(conn.queued_messages[n]);
}
free(conn.queued_messages);
conn.queued_messages = NULL;
}
break;
// raw connection success
@ -981,6 +1001,11 @@ _connection_handler(xmpp_conn_t* const xmpp_conn, const xmpp_conn_event_t status
// lost connection for unknown reason
if (conn.conn_status == JABBER_CONNECTED) {
log_debug("Connection handler: Lost connection for unknown reason");
conn.sm_state = xmpp_conn_get_sm_state(conn.xmpp_conn);
conn.queued_messages = calloc(xmpp_conn_send_queue_len(conn.xmpp_conn) + 1, sizeof(*conn.queued_messages));
for (int n = 0; n < xmpp_conn_send_queue_len(conn.xmpp_conn); ++n) {
conn.queued_messages[n] = xmpp_conn_send_queue_drop_element(conn.xmpp_conn, XMPP_QUEUE_OLDEST);
}
session_lost_connection();
// login attempt failed