path: root/plugins/MirOTR/src/utils.cpp

#include "stdafx.h"

mir_cs lib_cs;

void lib_cs_lock()
{
	mir_cslock lck(lib_cs);
}

MCONTACT find_contact(const char* userid, const char* protocol)
{
	for (MCONTACT hContact = db_find_first(); hContact; hContact = db_find_next(hContact)) {
		const char *proto = GetContactProto(hContact);
		if(proto && mir_strcmp(proto, protocol) == 0) {
			char *name = contact_get_id(hContact);
			if(name && mir_strcmp(name, userid) == 0) {
				mir_free(name);
				return hContact;
			}
			mir_free(name);
		}
	}
	
	return 0;
}

/* Look up a connection context by hContact from the given
* OtrlUserState.  If add_if_missing is true, allocate and return a new
* context if one does not currently exist.  In that event, call
* add_app_data(data, context) so that app_data and app_data_free can be
* filled in by the application, and set *addedp to 1. */
ConnContext * otrl_context_find_miranda(OtrlUserState us, MCONTACT hContact)
{
	const char *proto = GetContactProto(hContact);
	char *username = contact_get_id(hContact);
	ConnContext* ret = otrl_context_find(us, username, proto, proto, OTRL_INSTAG_BEST, 0, nullptr, nullptr, nullptr);
	mir_free(username);
	return ret;
}

/* What level of trust do we have in the privacy of this ConnContext? */
TrustLevel otr_context_get_trust(ConnContext *context)
{
	TrustLevel level = TRUST_NOT_PRIVATE;

	if (context && context->msgstate == OTRL_MSGSTATE_ENCRYPTED) {
		level = TRUST_UNVERIFIED;
		if (context->active_fingerprint)
			if (context->active_fingerprint->trust && context->active_fingerprint->trust[0])
				level = TRUST_PRIVATE;
	}
	else if (context && context->msgstate == OTRL_MSGSTATE_FINISHED)
		level = TRUST_FINISHED;

	return level;
}

/* Set verification of fingerprint */
void VerifyFingerprint(ConnContext *context, bool verify) {
	lib_cs_lock();
	otrl_context_set_trust(context->active_fingerprint, (verify)?"verified":nullptr);
	otrl_privkey_write_fingerprints(otr_user_state, _T2A(g_fingerprint_store_filename));
	VerifyFingerprintMessage(context, verify);
}

void VerifyFingerprintMessage(ConnContext *context, bool verify) {
	MCONTACT hContact = (UINT_PTR)context->app_data;

	wchar_t msg[1024];
	mir_snwprintf(msg, (verify) ? TranslateW(LANG_FINGERPRINT_VERIFIED) : TranslateW(LANG_FINGERPRINT_NOT_VERIFIED), contact_get_nameT(hContact));
	ShowMessage(hContact, msg);
	SetEncryptionStatus(hContact, otr_context_get_trust(context));
}

/* Convert a 20-byte hash value to a 45-byte human-readable value */
void otrl_privkey_hash_to_humanT(wchar_t human[45], const unsigned char hash[20])
{
	int word, byte;
	wchar_t *p = human;

	for(word=0; word<5; ++word) {
	for(byte=0; byte<4; ++byte) {
		swprintf(p, L"%02X", hash[word*4+byte]); //!!!!!!!!!!!!!!
		p += 2;
	}
	*(p++) = ' ';
	}
	/* Change that last ' ' to a '\0' */
	--p;
	*p = '\0';
}

char* contact_get_id(MCONTACT hContact, bool bNameOnError)
{
	ptrW pszUniqueID(Contact_GetInfo(CNF_UNIQUEID, hContact));
	if (!pszUniqueID && bNameOnError)
		pszUniqueID = mir_wstrdup(pcli->pfnGetContactDisplayName(hContact, 0));

	return mir_u2a(pszUniqueID);
}

__inline const wchar_t* contact_get_nameT(MCONTACT hContact) {
	return pcli->pfnGetContactDisplayName(hContact, 0);
}

wchar_t* ProtoGetNickname(const char* proto)
{
	wchar_t *p = Contact_GetInfo(CNF_NICK, NULL, proto);
	return (p != nullptr) ? p : mir_wstrdup(L"");
}

void ShowPopup(const wchar_t* line1, const wchar_t* line2, int timeout, const MCONTACT hContact) {
	if(Miranda_IsTerminated()) return;

	if ( !options.bHavePopups) {	
		wchar_t title[256];
		mir_snwprintf(title, L"%s Message", _A2W(MODULENAME));

		if(line1 && line2) {
			int size = int(mir_wstrlen(line1) + mir_wstrlen(line2) + 3);
			wchar_t *message = new wchar_t[size]; // newline and null terminator
			mir_snwprintf(message, size, L"%s\r\n%s", line1, line2);
			MessageBox( nullptr, message, title, MB_OK | MB_ICONINFORMATION );
			delete[] message;
		} else if(line1) {
			MessageBox( nullptr, line1, title, MB_OK | MB_ICONINFORMATION );
		} else if(line2) {
			MessageBox( nullptr, line2, title, MB_OK | MB_ICONINFORMATION );
		}
		return;
	}

	POPUPDATAT ppd = {0};
	//memset((void *)&ppd, 0, sizeof(POPUPDATAT));

	ppd.lchContact = hContact;
	ppd.lchIcon = nullptr;

	if(line1 && line2) {
		wcsncpy( ppd.lptzContactName, line1, MAX_CONTACTNAME-1 );
		wcsncpy( ppd.lptzText, line2, MAX_SECONDLINE-1 );
	} else if(line1)
		wcsncpy( ppd.lptzText, line1, MAX_SECONDLINE-1 );
	else if(line2)
		wcsncpy( ppd.lptzText, line2, MAX_SECONDLINE-1 );

	ppd.iSeconds = timeout;

	ppd.PluginWindowProc = nullptr;
	ppd.PluginData = nullptr;

	PUAddPopupT(&ppd);

}

void ShowWarning(wchar_t *msg) {
	wchar_t buffer[512];
	ErrorDisplay disp = options.err_method;
	// funny logic :) ... try to avoid message boxes
	// if want popups but no popups, try baloons
	if(disp == ED_POP && !options.bHavePopups)
		disp = ED_BAL;

	mir_snwprintf(buffer, L"%s Warning", _A2W(MODULENAME));
	
	switch (disp) {
	case ED_POP:
		{
			int size = int(mir_wstrlen(msg) + 515);
			wchar_t *message = new wchar_t[size]; // newline and null terminator
			mir_snwprintf(message, size, L"%s\r\n%s", buffer, msg);
			PUShowMessageT(message, SM_WARNING);
			delete[] message;
		}
		break;
	case ED_MB:
		MessageBox(nullptr, msg, buffer, MB_OK | MB_ICONWARNING);
		break;
	case ED_BAL:
		Clist_TrayNotifyW(MODULENAME, buffer, msg, NIIF_WARNING, 10000);
		break;
	}
}

void ShowError(wchar_t *msg) {
	wchar_t buffer[512];
	ErrorDisplay disp = options.err_method;
	// funny logic :) ... try to avoid message boxes
	// if want popups but no popups, try baloons
	if(disp == ED_POP && !options.bHavePopups)
		disp = ED_BAL;

	mir_snwprintf(buffer, L"%s Error", _A2W(MODULENAME));

	wchar_t *message;
	switch (disp) {
	case ED_POP:
		{
			int size = int(mir_wstrlen(msg) + 515);
			message = new wchar_t[size]; // newline and null terminator
			mir_snwprintf(message, size, L"%s\r\n%s", buffer, msg);
			PUShowMessageT(message, SM_WARNING);
			delete[] message;
		}
		break;
	case ED_MB:
		MessageBox(nullptr, msg, buffer, MB_OK | MB_ICONERROR);
		break;
	case ED_BAL:
		Clist_TrayNotifyW(MODULENAME, buffer, msg, NIIF_ERROR, 10000);
		break;
	}
}


void ShowPopupUtf(const char* line1, const char* line2, int timeout, const MCONTACT hContact) {
	wchar_t* l1 = (line1) ? mir_utf8decodeW(line1) : nullptr;
	wchar_t* l2 = (line2) ? mir_utf8decodeW(line2) : nullptr;
	ShowPopup(l1, l2, timeout, hContact);
	if (l1) mir_free(l1);
	if (l2) mir_free(l2);
}

void ShowWarningUtf(char* msg) {
	wchar_t* m = (msg) ? mir_utf8decodeW(msg) : nullptr;
	ShowWarning(m);
	if (m) mir_free(m);
}
void ShowErrorUtf(char* msg) {
	wchar_t* m = (msg) ? mir_utf8decodeW(msg) : nullptr;
	ShowError(m);
	if (m) mir_free(m);
}

void ShowMessageInline(const MCONTACT hContact, const wchar_t *msg) {
	wchar_t buff[1024];
	mir_snwprintf(buff, L"%s%s", _A2W(LANG_INLINE_PREFIX), msg);
	T2Utf utf(buff);

	PROTORECVEVENT pre = {0};
	pre.timestamp = time(nullptr);
	pre.szMessage = utf;
	pre.flags = PREF_BYPASS_OTR;
	ProtoChainRecvMsg(hContact, &pre);	
}

void ShowMessageInlineUtf(const MCONTACT hContact, const char *msg) {
	char buff[1024];
	mir_snprintf(buff, "%s%s", LANG_INLINE_PREFIX, msg);

	PROTORECVEVENT pre = {0};
	pre.timestamp = time(nullptr);
	pre.szMessage = buff;
	pre.flags = PREF_BYPASS_OTR;
	ProtoChainRecvMsg(hContact, &pre);
}

void ShowMessageUtf(const MCONTACT hContact, const char *msg) {
	if(options.msg_inline)
		ShowMessageInlineUtf(hContact, msg);
	if(options.msg_popup)
		ShowPopupUtf(Translate(LANG_OTR_INFO), msg, 0, hContact);
}

void ShowMessage(const MCONTACT hContact, const wchar_t *msg) {
	if(options.msg_inline)
		ShowMessageInline(hContact, msg);
	if(options.msg_popup)
		ShowPopup(TranslateT(LANG_OTR_INFO), msg, 0, hContact);
}

const wchar_t *policy_to_string(OtrlPolicy policy) {
	switch (policy) {
		case OTRL_POLICY_NEVER:
			return TranslateW(LANG_POLICY_NEVER);
		case OTRL_POLICY_OPPORTUNISTIC:
			return TranslateW(LANG_POLICY_OPP);
		case OTRL_POLICY_MANUAL:
		case OTRL_POLICY_MANUAL_MOD:
			return TranslateW(LANG_POLICY_MANUAL);
		case OTRL_POLICY_ALWAYS:
			return TranslateW(LANG_POLICY_ALWAYS);
		default:
			return TranslateW(LANG_POLICY_DEFAULT);
	}
}

OtrlPolicy policy_from_string(const wchar_t *polstring) {
	if (mir_wstrcmp(polstring, TranslateW(LANG_POLICY_NEVER)) == 0)
		return OTRL_POLICY_NEVER;
	else if (mir_wstrcmp(polstring, TranslateW(LANG_POLICY_OPP)) == 0)
		return OTRL_POLICY_OPPORTUNISTIC;
	else if (mir_wstrcmp(polstring, TranslateW(LANG_POLICY_MANUAL)) == 0)
		return OTRL_POLICY_MANUAL_MOD;
	else if (mir_wstrcmp(polstring, TranslateW(LANG_POLICY_ALWAYS)) == 0)
		return OTRL_POLICY_ALWAYS;
	else 
		return CONTACT_DEFAULT_POLICY;
}