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#include "stdafx.h"
INT_PTR SVC_OTRSendMessage(WPARAM wParam,LPARAM lParam){
if (!lParam) return 0;
CCSDATA *ccs = (CCSDATA *) lParam;
DEBUGOUT_T("SENDING\n");
DEBUGOUTA("'");
DEBUGOUTA((const char*)ccs->lParam);
DEBUGOUTA("'\n");
if (ccs->wParam & PREF_BYPASS_OTR) // bypass for OTR-messages
return CallService(MS_PROTO_CHAINSEND, wParam, lParam);
char *proto = GetContactProto(ccs->hContact);
if(proto && strcmp(proto, META_PROTO) == 0) // bypass for metacontacts
return CallService(MS_PROTO_CHAINSEND, wParam, lParam);
if (!proto || !ccs->hContact)
return 1; // error
const char *oldmessage = (const char *)ccs->lParam;
char *oldmessage_utf = NULL;
//MessageBox(0, "Send message - converting to UTF-8", "msg", MB_OK);
if(ccs->wParam & PREF_UTF) {
oldmessage_utf = (char*)oldmessage;
}
else if(ccs->wParam & PREF_UNICODE) {
oldmessage_utf = mir_utf8encodeW((wchar_t*)&oldmessage[strlen(oldmessage)+1]);
}
else {
oldmessage_utf = mir_utf8encode(oldmessage);
}
if (!oldmessage_utf) return 1;
// don't filter OTR messages being sent (OTR messages should only happen *after* the otrl_message_sending call below)
if(strncmp(oldmessage_utf, "?OTR", 4) == 0) {
DEBUGOUT_T("OTR message without PREF_BYPASS_OTR\n");
if (!(ccs->wParam & PREF_UTF))
mir_free(oldmessage_utf);
return CallService(MS_PROTO_CHAINSEND, wParam, lParam);
}
char *tmpencode = NULL;
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_utf);
if (tmpencode != NULL) {
if (!(ccs->wParam & PREF_UTF)) mir_free(oldmessage_utf);
oldmessage_utf = tmpencode;
}
}
char *newmessage = NULL;
char *username = contact_get_id(ccs->hContact);
gcry_error_t err = otrl_message_sending(otr_user_state, &ops, (void*)ccs->hContact, proto, proto, username, OTRL_INSTAG_BEST, oldmessage_utf, NULL, &newmessage, OTRL_FRAGMENT_SEND_ALL_BUT_LAST, NULL, add_appdata, (void*)ccs->hContact);
if (tmpencode!= NULL || !(ccs->wParam & PREF_UTF))
mir_free(oldmessage_utf);
mir_free(username);
if (err) { /* Be *sure* not to send out plaintext */
DEBUGOUTA("otrl_message_sending err");
ShowError(TranslateT(LANG_ENCRYPTION_ERROR));
otrl_message_free(newmessage);
return 1;
} else if (newmessage) {
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;
if(ccs->wParam & (PREF_UTF|PREF_UNICODE)) {
ccs->lParam = (LPARAM)newmessage;
ccs->wParam &= ~PREF_UNICODE;
ccs->wParam |= PREF_UTF;
} else {
mir_utf8decode(newmessage, NULL);
ccs->lParam = (LPARAM)newmessage;
}
INT_PTR ret = CallService(MS_PROTO_CHAINSEND, wParam, lParam);
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;
}
return CallService(MS_PROTO_CHAINSEND, wParam, lParam);
}
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 CallService(MS_PROTO_CHAINRECV, wParam, lParam);
}
char *proto = GetContactProto(ccs->hContact);
if (!proto || !ccs->hContact)
return 1; //error
else if(proto && strcmp(proto, META_PROTO) == 0) // bypass for metacontacts
return CallService(MS_PROTO_CHAINRECV, wParam, lParam);
char *oldmessage = pre->szMessage;
char *oldmessage_utf = NULL;
// convert oldmessage to utf-8
if(pre->flags & PREF_UTF) {
oldmessage_utf = oldmessage;
} else if(pre->flags & PREF_UNICODE) {
oldmessage_utf = mir_utf8encodeW((wchar_t*)(&oldmessage[strlen(oldmessage)+1]));
} else {
oldmessage_utf = mir_utf8encode(oldmessage);
}
if (!oldmessage_utf) return 1;
ConnContext* context=NULL;
char *uname = contact_get_id(ccs->hContact);
char *newmessage = NULL;
OtrlTLV *tlvs = NULL;
lib_cs_lock();
int ignore_msg = otrl_message_receiving(otr_user_state, &ops, (void*)ccs->hContact,
proto, proto, uname, oldmessage_utf,
&newmessage, &tlvs, &context, add_appdata, (void*)ccs->hContact);
mir_free(uname);
if ( !(pre->flags & PREF_UTF))
mir_free(oldmessage_utf);
OtrlTLV *tlv = otrl_tlv_find(tlvs, OTRL_TLV_DISCONNECTED);
if (tlv && !Miranda_Terminated()) {
/* Notify the user that the other side disconnected. */
TCHAR buff[256];
mir_sntprintf(buff, SIZEOF(buff), TranslateT(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
} else if (newmessage) {
DWORD oldflags = pre->flags;
pre->flags &= ~PREF_UNICODE;
pre->flags |= PREF_UTF; // just use UTF, so we do not have to recode the message
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) {
size_t len = (strlen(options.prefix)+strlen(newmessage)+1)*sizeof(char);
char* tmp = (char*)mir_alloc( len );
strcpy(tmp, options.prefix);
strcat(tmp, newmessage);
msg_free(newmessage);
newmessage = tmp;
msg_free = mir_free;
}
pre->szMessage = newmessage;
BOOL ret = CallService(MS_PROTO_CHAINRECV, wParam, lParam);
/// @todo (White-Tiger#1#03/23/15): why are we doing this?
pre->flags = oldflags;
pre->szMessage = oldmessage;
msg_free(newmessage);
return ret;
}
return CallService(MS_PROTO_CHAINRECV, wParam, lParam);
}
/* 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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