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Mark messages received from a session as trusted

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This commit is contained in:
Paul Fariello
2019-06-25 06:23:57 +02:00
parent 684fdf68ac
commit f081766913
3 changed files with 25 additions and 10 deletions
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21
src/omemo/omemo.c
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@@ -890,15 +890,26 @@ omemo_on_message_recv(const char *const from_jid, uint32_t sid,
goto out;
}
omemo_ctx.identity_key_store.recv = true;
if (key->prekey) {
log_debug("OMEMO: decrypting message with prekey");
pre_key_signal_message *message;
ec_public_key *their_identity_key;
signal_buffer *identity_buffer = NULL;
omemo_ctx.identity_key_store.recv = true;
pre_key_signal_message_deserialize(&message, key->data, key->length, omemo_ctx.signal);
their_identity_key = pre_key_signal_message_get_identity_key(message);
res = session_cipher_decrypt_pre_key_signal_message(cipher, message, NULL, &plaintext_key);
omemo_ctx.identity_key_store.recv = false;
/* Perform a real check of the identity */
ec_public_key_serialize(&identity_buffer, their_identity_key);
*trusted = is_trusted_identity(&address, signal_buffer_data(identity_buffer),
signal_buffer_len(identity_buffer), &omemo_ctx.identity_key_store);
/* Replace used pre_key in bundle */
uint32_t pre_key_id = pre_key_signal_message_get_pre_key_id(message);
ec_key_pair *ec_pair;
@@ -918,18 +929,18 @@ omemo_on_message_recv(const char *const from_jid, uint32_t sid,
} else {
log_debug("OMEMO: decrypting message with existing session");
signal_message *message = NULL;
res = signal_message_deserialize(&message, key->data, key->length, omemo_ctx.signal);
if (res < 0) {
log_error("OMEMO: cannot deserialize message");
} else {
res = session_cipher_decrypt_signal_message(cipher, message, NULL, &plaintext_key);
*trusted = true;
SIGNAL_UNREF(message);
}
}
omemo_ctx.identity_key_store.recv = false;
*trusted = omemo_ctx.identity_key_store.trusted_msg;
session_cipher_free(cipher);
if (res != 0) {
log_error("OMEMO: cannot decrypt message key");