From 3b020144d5a851492729b59e4e53b0f968f5222b Mon Sep 17 00:00:00 2001 From: DebXWoody Date: Fri, 28 May 2021 21:48:43 +0200 Subject: [PATCH] OMEMO: Don't encrypt to yourself (MUC) As defined in XEP-0384 the application should not encrypt the message to own devices. Within a groupchat, yourself are a recipients as well. We will check the recipients and filter out the own device of the own jid. This Pull Request will fix Issue: #1541 --- src/omemo/omemo.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/omemo/omemo.c b/src/omemo/omemo.c index b6c7585d..5e945505 100644 --- a/src/omemo/omemo.c +++ b/src/omemo/omemo.c @@ -791,6 +791,19 @@ omemo_on_message_send(ProfWin* win, const char* const message, gboolean request_ .device_id = GPOINTER_TO_INT(device_ids_iter->data) }; + // Don't encrypt for this device (according to + // ). + // Yourself as recipients in case of MUC + Jid* me = jid_create(connection_get_fulljid()); + if ( !g_strcmp0(me->barejid, recipients_iter->data) ) { + if (GPOINTER_TO_INT(device_ids_iter->data) == omemo_ctx.device_id) { + jid_destroy(me); + log_debug("[OMEMO][SEND] Skipping %d (my device) ", GPOINTER_TO_INT(device_ids_iter->data)); + continue; + } + } + jid_destroy(me); + log_debug("[OMEMO][SEND] recipients with device id %d for %s", GPOINTER_TO_INT(device_ids_iter->data), recipients_iter->data); res = session_cipher_create(&cipher, omemo_ctx.store, &address, omemo_ctx.signal); if (res != SG_SUCCESS ) {