void
otr_smp_secret(const char *const recipient, const char *secret)
{
ConnContext *context = otrlib_context_find(user_state, recipient, jid);
if (context == NULL) {
return;
}
if (context->msgstate != OTRL_MSGSTATE_ENCRYPTED) {
return;
}
// if recipient initiated SMP, send response, else initialise
ProfChatWin *chatwin = wins_get_chat(recipient);
if (g_hash_table_contains(smp_initiators, recipient)) {
otrl_message_respond_smp(user_state, &ops, NULL, context, (const unsigned char*)secret, strlen(secret));
if (chatwin) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_AUTH, NULL);
}
g_hash_table_remove(smp_initiators, context->username);
} else {
otrl_message_initiate_smp(user_state, &ops, NULL, context, (const unsigned char*)secret, strlen(secret));
if (chatwin) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_AUTH_WAIT, NULL);
}
}
}
void
otr_smp_question(const char *const recipient, const char *question, const char *answer)
{
ConnContext *context = otrlib_context_find(user_state, recipient, jid);
if (context == NULL) {
return;
}
if (context->msgstate != OTRL_MSGSTATE_ENCRYPTED) {
return;
}
otrl_message_initiate_smp_q(user_state, &ops, NULL, context, question, (const unsigned char*)answer, strlen(answer));
ProfChatWin *chatwin = wins_get_chat(recipient);
if (chatwin) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_AUTH_WAIT, NULL);
}
}
void
otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext *context, OtrlTLV *tlvs, GHashTable *smp_initiators)
{
NextExpectedSMP nextMsg = context->smstate->nextExpected;
OtrlTLV *tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP1);
if (tlv) {
if (nextMsg != OTRL_SMP_EXPECT1) {
otrl_message_abort_smp(user_state, ops, NULL, context);
} else {
ProfChatWin *chatwin = wins_get_chat(context->username);
if (chatwin) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_INIT, NULL);
}
g_hash_table_insert(smp_initiators, strdup(context->username), strdup(context->username));
}
}
tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP1Q);
if (tlv) {
if (nextMsg != OTRL_SMP_EXPECT1) {
otrl_message_abort_smp(user_state, ops, NULL, context);
} else {
ProfChatWin *chatwin = wins_get_chat(context->username);
if (chatwin) {
char *question = (char *)tlv->data;
char *eoq = memchr(question, '\0', tlv->len);
if (eoq) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_INIT_Q, question);
}
}
}
}
tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP2);
if (tlv) {
if (nextMsg != OTRL_SMP_EXPECT2) {
otrl_message_abort_smp(user_state, ops, NULL, context);
} else {
context->smstate->nextExpected = OTRL_SMP_EXPECT4;
}
}
tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP3);
if (tlv) {
if (nextMsg != OTRL_SMP_EXPECT3) {
otrl_message_abort_smp(user_state, ops, NULL, context);
} else {
context->smstate->nextExpected = OTRL_SMP_EXPECT1;
ProfChatWin *chatwin = wins_get_chat(context->username);
if (chatwin) {
if (context->smstate->received_question == 0) {
if (context->active_fingerprint->trust && (context->active_fingerprint->trust[0] != '\0')) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_SUCCESS, NULL);
chatwin_otr_trust(chatwin);
} else {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_SENDER_FAIL, NULL);
chatwin_otr_untrust(chatwin);
}
} else {
if (context->smstate->sm_prog_state == OTRL_SMP_PROG_SUCCEEDED) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_SUCCESS_Q, NULL);
} else {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_FAIL_Q, NULL);
}
}
}
}
}
tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP4);
if (tlv) {
if (nextMsg != OTRL_SMP_EXPECT4) {
otrl_message_abort_smp(user_state, ops, NULL, context);
} else {
context->smstate->nextExpected = OTRL_SMP_EXPECT1;
ProfChatWin *chatwin = wins_get_chat(context->username);
if (chatwin) {
if (context->active_fingerprint->trust && (context->active_fingerprint->trust[0] != '\0')) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_SUCCESS, NULL);
chatwin_otr_trust(chatwin);
} else {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_RECEIVER_FAIL, NULL);
chatwin_otr_untrust(chatwin);
}
}
}
}
tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP_ABORT);
if (tlv) {
context->smstate->nextExpected = OTRL_SMP_EXPECT1;
ProfChatWin *chatwin = wins_get_chat(context->username);
if (chatwin) {
chatwin_otr_smp_event(chatwin, PROF_OTR_SMP_ABORT, NULL);
chatwin_otr_untrust(chatwin);
}
otr_untrust(context->username);
}
}
