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#include "stdafx.h"
INT_PTR SVC_OTRSendMessage(WPARAM wParam,LPARAM lParam){
if (!lParam) return 0;
CCSDATA *ccs = (CCSDATA *) lParam;
DEBUGOUTW(L"SENDING\n");
DEBUGOUTA("'");
DEBUGOUTA((const char*)ccs->lParam);
DEBUGOUTA("'\n");
if (ccs->wParam & PREF_BYPASS_OTR) // bypass for OTR-messages
return Proto_ChainSend(wParam, ccs);
char *proto = Proto_GetBaseAccountName(ccs->hContact);
if(proto && mir_strcmp(proto, META_PROTO) == 0) // bypass for metacontacts
return Proto_ChainSend(wParam, ccs);
if (!proto || !ccs->hContact)
return 1; // error
const char *oldmessage = (const char *)ccs->lParam;
if (!oldmessage)
return 1;
// don't filter OTR messages being sent (OTR messages should only happen *after* the otrl_message_sending call below)
if(strncmp(oldmessage, "?OTR", 4) == 0) {
DEBUGOUTW(L"OTR message without PREF_BYPASS_OTR\n");
return Proto_ChainSend(wParam, ccs);
}
ptrA tmpencode;
ConnContext *context = otrl_context_find_miranda(otr_user_state, ccs->hContact);
if (db_get_b(ccs->hContact, MODULENAME, "HTMLConv", 0) && otr_context_get_trust(context) >= TRUST_UNVERIFIED) {
tmpencode = encode_html_entities_utf8(oldmessage);
if (tmpencode != NULL)
oldmessage = tmpencode;
}
char *newmessage = nullptr;
gcry_error_t err = otrl_message_sending(otr_user_state, &ops, (void*)ccs->hContact, proto, proto,
ptrA(contact_get_id(ccs->hContact)), OTRL_INSTAG_BEST, oldmessage, nullptr, &newmessage,
OTRL_FRAGMENT_SEND_ALL_BUT_LAST, nullptr, add_appdata, (void*)ccs->hContact);
if (err) { /* Be *sure* not to send out plaintext */
DEBUGOUTA("otrl_message_sending err");
ShowError(TranslateW(LANG_ENCRYPTION_ERROR));
otrl_message_free(newmessage);
return 1;
}
if (newmessage == nullptr)
return Proto_ChainSend(wParam, ccs);
if(!newmessage[0]){
otrl_message_free(newmessage);
return 1; // skip empty messages (OTR might prevent us sending unencrypted messages by replacing them with empty ones)
}
WPARAM oldflags = ccs->wParam;
ccs->lParam = (LPARAM)newmessage;
INT_PTR ret = Proto_ChainSend(wParam, ccs);
DEBUGOUTA("OTR - sending raw message: '");
DEBUGOUTA((const char*)ccs->lParam);
DEBUGOUTA("'\n");
otrl_message_free(newmessage);
// reset to original values
ccs->lParam = (LPARAM)oldmessage;
ccs->wParam = oldflags;
return ret;
}
INT_PTR SVC_OTRRecvMessage(WPARAM wParam,LPARAM lParam)
{
CCSDATA *ccs = (CCSDATA *) lParam;
PROTORECVEVENT *pre = (PROTORECVEVENT *) ccs->lParam;
DEBUGOUTA("OTR - receiving message: '");
DEBUGOUTA(pre->szMessage);
DEBUGOUTA("'\n");
if (pre->flags & PREF_BYPASS_OTR) // bypass for our inline messages
return Proto_ChainRecv(wParam, ccs);
char *proto = Proto_GetBaseAccountName(ccs->hContact);
if (!proto || !ccs->hContact)
return 1; //error
else if(proto && mir_strcmp(proto, META_PROTO) == 0) // bypass for metacontacts
return Proto_ChainRecv(wParam, ccs);
char *oldmessage = pre->szMessage;
// convert oldmessage to utf-8
if (!oldmessage)
return 1;
ConnContext* context=nullptr;
char *newmessage = nullptr;
OtrlTLV *tlvs = nullptr;
int ignore_msg;
{
mir_cslock lck(lib_cs);
ignore_msg = otrl_message_receiving(otr_user_state, &ops, (void*)ccs->hContact, proto, proto, ptrA(contact_get_id(ccs->hContact)),
oldmessage, &newmessage, &tlvs, &context, add_appdata, (void*)ccs->hContact);
}
OtrlTLV *tlv = otrl_tlv_find(tlvs, OTRL_TLV_DISCONNECTED);
if (tlv && !Miranda_IsTerminated()) {
/* Notify the user that the other side disconnected. */
wchar_t buff[256];
mir_snwprintf(buff, TranslateW(LANG_SESSION_TERMINATED_BY_OTR), contact_get_nameT(ccs->hContact));
SetEncryptionStatus(ccs->hContact, otr_context_get_trust(context)); // required since libotr 4!?
ShowMessage(ccs->hContact, buff);
}
otrl_tlv_free(tlvs);
if (ignore_msg) {
if (newmessage)
otrl_message_free(newmessage);
return 1; // discard internal protocol messages
}
if (newmessage == nullptr)
return Proto_ChainRecv(wParam, ccs);
DWORD oldflags = pre->flags;
typedef void (*msg_free_t)(void*);
msg_free_t msg_free = (msg_free_t)otrl_message_free;
if (db_get_b(ccs->hContact, MODULENAME, "HTMLConv", 0)) {
char* tmp = striphtml(newmessage);
msg_free(newmessage);
newmessage = tmp;
msg_free = mir_free;
}
if (options.prefix_messages) {
CMStringA tmp = options.prefix;
tmp.Append(newmessage);
msg_free(newmessage);
replaceStr(newmessage, tmp.Detach());
msg_free = mir_free;
}
pre->szMessage = newmessage;
BOOL ret = Proto_ChainRecv(wParam, ccs);
/// @todo (White-Tiger#1#03/23/15): why are we doing this?
pre->flags = oldflags;
pre->szMessage = oldmessage;
msg_free(newmessage);
return ret;
}
/* Abort the SMP protocol. Used when malformed or unexpected messages
* are received. */
void otr_abort_smp(ConnContext *context)
{
otrl_message_abort_smp(otr_user_state, &ops, context->app_data, context);
}
/* Start the Socialist Millionaires' Protocol over the current connection,
* using the given initial secret, and optionally a question to pass to
* the buddy. */
void otr_start_smp(ConnContext *context, const char *question,
const unsigned char *secret, size_t secretlen)
{
otrl_message_initiate_smp_q(otr_user_state, &ops, context->app_data,
context, question, secret, secretlen);
}
/* Continue the Socialist Millionaires' Protocol over the current connection,
* using the given initial secret (ie finish step 2). */
void otr_continue_smp(ConnContext *context,
const unsigned char *secret, size_t secretlen)
{
otrl_message_respond_smp(otr_user_state, &ops, context->app_data,
context, secret, secretlen);
}
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