// ---------------------------------------------------------------------------80
//                ICQ plugin for Miranda Instant Messenger
//                ________________________________________
//
// Copyright © 2000-2001 Richard Hughes, Roland Rabien, Tristan Van de Vreede
// Copyright © 2001-2002 Jon Keating, Richard Hughes
// Copyright © 2002-2004 Martin Öberg, Sam Kothari, Robert Rainwater
// Copyright © 2004-2010 Joe Kucera
// Copyright © 2012-2018 Miranda NG team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
// -----------------------------------------------------------------------------

#include "stdafx.h"

static int unpackServerListItem(BYTE **pbuf, size_t *pwLen, char *pszRecordName, WORD *pwGroupId, WORD *pwItemId, WORD *pwItemType, size_t *pwTlvLength);

void CIcqProto::handleServCListFam(BYTE *pBuffer, size_t wBufferLength, snac_header* pSnacHeader, serverthread_info *info)
{
	switch (pSnacHeader->wSubtype) {
	case ICQ_LISTS_ACK: // UPDATE_ACK
		if (wBufferLength >= 2) {
			WORD wError;
			unpackWord(&pBuffer, &wError);

			cookie_servlist_action *sc;
			if (FindCookie(pSnacHeader->dwRef, nullptr, (void**)&sc)) { // look for action cookie
				debugLogA("Received expected server list ack, action: %d, result: %d", sc->dwAction, wError);
				FreeCookie(pSnacHeader->dwRef); // release cookie

				if (sc->dwAction == SSA_ACTION_GROUP) { // group cookie, handle sub-items
					int i;

					debugLogA("Server-List: Grouped action contains %d actions.", sc->dwGroupCount);

					pBuffer -= 2; // revoke unpack
					if ((int)wBufferLength != 2 * sc->dwGroupCount)
						debugLogA("Error: Server list ack does not contain expected amount of result codes (%u != %u)", wBufferLength / 2, sc->dwGroupCount);

					for (i = 0; i < sc->dwGroupCount; i++) {
						if (wBufferLength >= 2) { // get proper result code
							unpackWord(&pBuffer, &wError);
							wBufferLength -= 2;
						}
						else // missing result code, give some special
							wError = -1;

						debugLogA("Action: %d, ack result: %d", sc->pGroupItems[i]->dwAction, wError);

						// call normal ack handler
						handleServerCListAck(sc->pGroupItems[i], wError);
					}
					// Release cookie
					SAFE_FREE((void**)&sc->pGroupItems);
					SAFE_FREE((void**)&sc);
				}
				else // single ack
					handleServerCListAck(sc, wError);
			}
			else debugLogA("Received unexpected server list ack %u", wError);
		}
		break;

	case ICQ_LISTS_SRV_REPLYLISTS:
		/* received server-list rights */
		handleServerCListRightsReply(pBuffer, wBufferLength);
		debugLogA("Server sent SNAC(x13,x03) - SRV_REPLYLISTS");
		break;

	case ICQ_LISTS_LIST: // SRV_REPLYROSTER
		{
			cookie_servlist_action* sc;
			BOOL blWork = bIsSyncingCL;
			bIsSyncingCL = TRUE; // this is not used if cookie takes place

			if (FindCookie(pSnacHeader->dwRef, nullptr, (void**)&sc)) { // we do it by reliable cookie
				if (!sc->lParam) { // is this first packet ?
					ResetSettingsOnListReload();
					sc->lParam = 1;
				}
				handleServerCListReply(pBuffer, wBufferLength, pSnacHeader->wFlags, info);
				if (!(pSnacHeader->wFlags & 0x0001)) // was that last packet ?
					ReleaseCookie(pSnacHeader->dwRef); // yes, release cookie
			}
			else { // use old fake
				if (!blWork) // this can fail on some crazy situations
					ResetSettingsOnListReload();

				handleServerCListReply(pBuffer, wBufferLength, pSnacHeader->wFlags, info);
			}
		}
		break;

	case ICQ_LISTS_UPTODATE: // SRV_REPLYROSTEROK
		bIsSyncingCL = FALSE;
		{
			cookie_servlist_action* sc;
			if (FindCookie(pSnacHeader->dwRef, nullptr, (void**)&sc)) { // we requested servlist check
				debugLogA("Server stated roster is ok.");
				ReleaseCookie(pSnacHeader->dwRef);
				LoadServerIDs();
			}
			else debugLogA("Server sent unexpected SNAC(x13,x0F) - SRV_REPLYROSTEROK");

			// This will activate the server side list
			sendRosterAck(); // this must be here, cause of failures during cookie alloc
			handleServUINSettings(wListenPort, info);
		}
		break;

	case ICQ_LISTS_CLI_MODIFYSTART:
		debugLogA("Server sent SNAC(x13,x%02x) - %s", ICQ_LISTS_CLI_MODIFYSTART, "Server is modifying contact list");
		break;

	case ICQ_LISTS_CLI_MODIFYEND:
		debugLogA("Server sent SNAC(x13,x%02x) - %s", ICQ_LISTS_CLI_MODIFYEND, "End of server modification");
		break;

	case ICQ_LISTS_ADDTOLIST:
	case ICQ_LISTS_UPDATEGROUP:
	case ICQ_LISTS_REMOVEFROMLIST:
		{
			int nItems = 0;

			while (wBufferLength >= 10) {
				WORD wGroupId, wItemId, wItemType;
				size_t wTlvLen;
				uid_str szRecordName;

				if (unpackServerListItem(&pBuffer, &wBufferLength, szRecordName, &wGroupId, &wItemId, &wItemType, &wTlvLen)) {
					BYTE *buf = pBuffer;
					oscar_tlv_chain *pChain = nullptr;

					nItems++;

					// parse possible item's data
					if (wBufferLength >= wTlvLen && wTlvLen > 0) {
						pChain = readIntoTLVChain(&buf, wTlvLen, 0);
						pBuffer += wTlvLen;
						wBufferLength -= wTlvLen;
					}
					else if (wTlvLen > 0)
						wBufferLength = 0;

					// process item change
					if (pSnacHeader->wSubtype == ICQ_LISTS_ADDTOLIST)
						handleServerCListItemAdd(wItemId, wItemType, pChain);
					else if (pSnacHeader->wSubtype == ICQ_LISTS_UPDATEGROUP)
						handleServerCListItemUpdate(szRecordName, wItemType, pChain);
					else if (pSnacHeader->wSubtype == ICQ_LISTS_REMOVEFROMLIST)
						handleServerCListItemDelete(szRecordName, wItemId, wItemType);

					// release memory
					disposeChain(&pChain);
				}
			}

			// log packet basics
			char *szChange;

			if (pSnacHeader->wSubtype == ICQ_LISTS_ADDTOLIST)
				szChange = "Server added %u item(s) to list";
			else if (pSnacHeader->wSubtype == ICQ_LISTS_UPDATEGROUP)
				szChange = "Server updated %u item(s) on list";
			else if (pSnacHeader->wSubtype == ICQ_LISTS_REMOVEFROMLIST)
				szChange = "Server removed %u item(s) from list";
			else
				break;

			char szLogText[MAX_PATH];
			mir_snprintf(szLogText, szChange, nItems);
			debugLogA("Server sent SNAC(x13,x%02x) - %s", pSnacHeader->wSubtype, szLogText);
		}
		break;

	case ICQ_LISTS_AUTHREQUEST:
		handleRecvAuthRequest(pBuffer, wBufferLength);
		break;

	case ICQ_LISTS_SRV_AUTHRESPONSE:
		handleRecvAuthResponse(pBuffer, wBufferLength);
		break;

	case ICQ_LISTS_AUTHGRANTED:
		debugLogA("Server sent SNAC(x13,x%02x) - %s", ICQ_LISTS_AUTHGRANTED, "User granted us future authorization");
		break;

	case ICQ_LISTS_YOUWEREADDED:
		handleRecvAdded(pBuffer, wBufferLength);
		break;

	case ICQ_LISTS_ERROR:
		if (wBufferLength >= 2) {
			WORD wError;
			cookie_servlist_action* sc;

			unpackWord(&pBuffer, &wError);

			if (FindCookie(pSnacHeader->dwRef, nullptr, (void**)&sc)) { // look for action cookie
				debugLogA("Received server list error, action: %d, result: %d", sc->dwAction, wError);
				FreeCookie(pSnacHeader->dwRef); // release cookie

				if (sc->dwAction == SSA_CHECK_ROSTER) { // the serv-list is unavailable turn it off
					icq_LogMessage(LOG_ERROR, LPGEN("Server contact list is unavailable, Miranda will use local contact list."));
					m_bSsiEnabled = 0;
					handleServUINSettings(wListenPort, info);
				}
				/// FIXME: properly release pending operations & cookie memory
				SAFE_FREE((void**)&sc);
			}
			else LogFamilyError(ICQ_LISTS_FAMILY, wError);
		}
		break;

	default:
		debugLogA("Warning: Ignoring SNAC(x%02x,x%02x) - Unknown SNAC (Flags: %u, Ref: %u)", ICQ_LISTS_FAMILY, pSnacHeader->wSubtype, pSnacHeader->wFlags, pSnacHeader->dwRef);
		break;
	}
}


static int unpackServerListItem(BYTE **pbuf, size_t *pwLen, char *pszRecordName, WORD *pwGroupId, WORD *pwItemId, WORD *pwItemType, size_t *pwTlvLength)
{
	size_t wRecordNameLen;

	// The name of the entry. If this is a group header, then this
	// is the name of the group. If it is a plain contact list entry,
	// then it's the UIN of the contact.
	unpackWord(pbuf, &wRecordNameLen);
	if (*pwLen < 10 + wRecordNameLen || wRecordNameLen >= MAX_PATH)
		return 0; // Failure

	unpackString(pbuf, pszRecordName, wRecordNameLen);
	if (pszRecordName)
		pszRecordName[wRecordNameLen] = '\0';

	// The group identifier this entry belongs to. If 0, this is meta information or
	// a contact without a group
	unpackWord(pbuf, pwGroupId);

	// The ID of this entry. Group headers have ID 0. Otherwise, this
	// is a random number generated when the user is added to the
	// contact list, or when the user is ignored. See CLI_ADDBUDDY.
	unpackWord(pbuf, pwItemId);

	// This field indicates what type of entry this is
	unpackWord(pbuf, pwItemType);

	// The length in bytes of the following TLV chain
	unpackWord(pbuf, pwTlvLength);

	*pwLen -= wRecordNameLen + 10;

	return 1; // Success
}


void CIcqProto::handleServerCListRightsReply(BYTE *buf, size_t wLen)
{
	/* received list rights, store the item limits for future use */
	oscar_tlv_chain* chain;

	memset(m_wServerListLimits, -1, sizeof(m_wServerListLimits));
	m_wServerListGroupMaxContacts = 0;
	m_wServerListRecordNameMaxLength = 0xFFFF;

	if (chain = readIntoTLVChain(&buf, wLen, 0)) {
		// determine max number of contacts in a group
		m_wServerListGroupMaxContacts = chain->getWord(0x0C, 1);
		// determine length limit for server-list item's name
		m_wServerListRecordNameMaxLength = chain->getWord(0x06, 1);

		if (oscar_tlv *pTLV = chain->getTLV(0x04, 1)) { // limits for item types
			WORD *pLimits = (WORD*)pTLV->pData;
			for (int i = 0; i < pTLV->wLen / 2; i++) {
				m_wServerListLimits[i] = (pLimits[i] & 0xFF) << 8 | (pLimits[i] >> 8);

				if (i + 1 >= _countof(m_wServerListLimits))
					break;
			}

			debugLogA("SSI: Max %d contacts (%d per group), %d groups, %d permit, %d deny, %d ignore items.", m_wServerListLimits[SSI_ITEM_BUDDY], m_wServerListGroupMaxContacts, m_wServerListLimits[SSI_ITEM_GROUP], m_wServerListLimits[SSI_ITEM_PERMIT], m_wServerListLimits[SSI_ITEM_DENY], m_wServerListLimits[SSI_ITEM_IGNORE]);
		}

		disposeChain(&chain);
	}
}

DWORD CIcqProto::updateServerGroupData(WORD wGroupId, void *groupData, int groupSize, DWORD dwOperationFlags)
{
	cookie_servlist_action* ack = (cookie_servlist_action*)SAFE_MALLOC(sizeof(cookie_servlist_action));
	if (!ack) {
		debugLogA("Updating of group on server list failed (malloc error)");
		return 0;
	}
	ack->dwAction = SSA_GROUP_UPDATE;
	ack->szGroupName = getServListGroupName(wGroupId);
	ack->wGroupId = wGroupId;
	
	DWORD dwCookie = AllocateCookie(CKT_SERVERLIST, ICQ_LISTS_UPDATEGROUP, 0, ack);
	return icq_sendServerGroup(dwCookie, ICQ_LISTS_UPDATEGROUP, ack->wGroupId, ack->szGroupName, groupData, groupSize, dwOperationFlags);
}

void CIcqProto::handleServerCListAck(cookie_servlist_action* sc, WORD wError)
{
	switch (sc->dwAction) {
	case SSA_VISIBILITY:
		if (wError)
			debugLogA("Server visibility update failed, error %d", wError);
		break;

	case SSA_CONTACT_UPDATE:
		servlistPendingRemoveContact(sc->hContact, sc->wContactId, sc->wGroupId, wError ? PENDING_RESULT_FAILED : PENDING_RESULT_SUCCESS);
		if (wError) {
			debugLogA("Updating of server contact failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Updating of server contact failed."));
		}
		break;

	case SSA_PRIVACY_ADD:
		if (wError) {
			debugLogA("Adding of privacy item to server list failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Adding of privacy item to server list failed."));
		}
		break;

	case SSA_PRIVACY_REMOVE:
		if (wError) {
			debugLogA("Removing of privacy item from server list failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Removing of privacy item from server list failed."));
		}
		FreeServerID(sc->wContactId, SSIT_ITEM); // release server id
		break;

	case SSA_CONTACT_ADD:
		if (wError) {
			if (wError == 0xE) { // server refused to add contact w/o auth, add with
				debugLogA("Contact could not be added without authorization, add with await auth flag.");

				setByte(sc->hContact, "Auth", 1); // we need auth
				DWORD dwCookie = AllocateCookie(CKT_SERVERLIST, ICQ_LISTS_ADDTOLIST, sc->hContact, sc);
				icq_sendServerContact(sc->hContact, dwCookie, ICQ_LISTS_ADDTOLIST, sc->wGroupId, sc->wContactId, SSOP_ITEM_ACTION | SSOF_CONTACT, 500, nullptr);

				sc = nullptr; // we do not want it to be freed now
				break;
			}
			FreeServerID(sc->wContactId, SSIT_ITEM);

			debugLogA("Adding of contact to server list failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Adding of contact to server list failed."));

			servlistPendingRemoveContact(sc->hContact, 0, sc->wGroupId, PENDING_RESULT_FAILED);

			servlistPostPacket(nullptr, 0, SSO_END_OPERATION, 100); // end server modifications here
		}
		else {
			void* groupData;
			int groupSize;

			setWord(sc->hContact, DBSETTING_SERVLIST_ID, sc->wContactId);
			setWord(sc->hContact, DBSETTING_SERVLIST_GROUP, sc->wGroupId);

			servlistPendingRemoveContact(sc->hContact, sc->wContactId, sc->wGroupId, PENDING_RESULT_SUCCESS);

			if (groupData = collectBuddyGroup(sc->wGroupId, &groupSize)) { // the group is not empty, just update it
				updateServerGroupData(sc->wGroupId, groupData, groupSize, SSOF_END_OPERATION);
				SAFE_FREE((void**)&groupData);
			}
			else { // this should never happen
				debugLogA("Group update failed.");
				servlistPostPacket(nullptr, 0, SSO_END_OPERATION, 100); // end server modifications here
			}
		}
		break;

	case SSA_GROUP_ADD:
		if (wError) {
			FreeServerID(sc->wGroupId, SSIT_GROUP);
			debugLogA("Adding of group to server list failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Adding of group to server list failed."));

			servlistPendingRemoveGroup(sc->szGroup, 0, PENDING_RESULT_FAILED);
		}
		else { // group added, we need to update master group
			void* groupData;
			int groupSize;

			setServListGroupName(sc->wGroupId, sc->szGroupName); // add group to namelist
			{ // add group to known
				char *szCListGroup = getServListGroupCListPath(sc->wGroupId);

				// create link to the original CList group
				setServListGroupLinkID(sc->szGroup, sc->wGroupId);

				servlistPendingRemoveGroup(sc->szGroup, sc->wGroupId, PENDING_RESULT_SUCCESS);
				SAFE_FREE((void**)&szCListGroup);
			}

			groupData = collectGroups(&groupSize);
			groupData = SAFE_REALLOC(groupData, groupSize + 2);
			*(((WORD*)groupData) + (groupSize >> 1)) = sc->wGroupId; // add this new group id
			groupSize += 2;

			cookie_servlist_action *ack = (cookie_servlist_action*)SAFE_MALLOC(sizeof(cookie_servlist_action));
			if (ack) {
				ack->dwAction = SSA_GROUP_UPDATE;

				DWORD dwCookie = AllocateCookie(CKT_SERVERLIST, ICQ_LISTS_UPDATEGROUP, 0, ack);
				icq_sendServerGroup(dwCookie, ICQ_LISTS_UPDATEGROUP, 0, ack->szGroupName, groupData, groupSize, SSOF_END_OPERATION);
			}
			else // end server modifications here
				servlistPostPacket(nullptr, 0, SSO_END_OPERATION, 100);

			SAFE_FREE((void**)&groupData);
		}
		if (sc->szGroup != sc->szGroupName)
			SAFE_FREE((void**)&sc->szGroup);

		SAFE_FREE((void**)&sc->szGroupName);
		break;

	case SSA_CONTACT_REMOVE:
		if (!wError) {
			void* groupData;
			int groupSize;

			setWord(sc->hContact, DBSETTING_SERVLIST_ID, 0); // clear the values
			setWord(sc->hContact, DBSETTING_SERVLIST_GROUP, 0);

			FreeServerID(sc->wContactId, SSIT_ITEM);

			servlistPendingRemoveContact(sc->hContact, 0, sc->wGroupId, PENDING_RESULT_SUCCESS);

			if (groupData = collectBuddyGroup(sc->wGroupId, &groupSize)) { // the group is still not empty, just update it
				updateServerGroupData(sc->wGroupId, groupData, groupSize, SSOF_END_OPERATION);
			}
			else // the group is empty, delete it
			{
				char *szGroup = getServListGroupCListPath(sc->wGroupId);

				servlistRemoveGroup(szGroup, sc->wGroupId);
				SAFE_FREE((void**)&szGroup);
			}
			SAFE_FREE((void**)&groupData); // free the memory
		}
		else {
			debugLogA("Removing of contact from server list failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Removing of contact from server list failed."));

			servlistPendingRemoveContact(sc->hContact, sc->wContactId, sc->wGroupId, PENDING_RESULT_FAILED);

			servlistPostPacket(nullptr, 0, SSO_END_OPERATION, 100); // end server modifications here
		}
		break;

	case SSA_GROUP_UPDATE:
		if (wError) {
			debugLogA("Updating of group on server list failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Updating of group on server list failed."));
		}
		SAFE_FREE((void**)&sc->szGroupName);
		break;

	case SSA_GROUP_REMOVE:
		SAFE_FREE((void**)&sc->szGroupName);
		if (wError) {
			debugLogA("Removing of group from server list failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Removing of group from server list failed."));

			servlistPendingRemoveGroup(sc->szGroup, 0, PENDING_RESULT_FAILED);

			servlistPostPacket(nullptr, 0, SSO_END_OPERATION, 100); // end server modifications here
			SAFE_FREE((void**)&sc->szGroup);
		}
		else { // group removed, we need to update master group
			void* groupData;
			int groupSize;

			setServListGroupName(sc->wGroupId, nullptr); // clear group from namelist
			FreeServerID(sc->wGroupId, SSIT_GROUP);
			removeGroupPathLinks(sc->wGroupId);

			servlistPendingRemoveGroup(sc->szGroup, 0, PENDING_RESULT_SUCCESS);
			SAFE_FREE((void**)&sc->szGroup);

			groupData = collectGroups(&groupSize);
			sc->wGroupId = 0;
			sc->dwAction = SSA_GROUP_UPDATE;
			sc->szGroupName = nullptr;
			DWORD dwCookie = AllocateCookie(CKT_SERVERLIST, ICQ_LISTS_UPDATEGROUP, 0, sc);

			icq_sendServerGroup(dwCookie, ICQ_LISTS_UPDATEGROUP, 0, sc->szGroupName, groupData, groupSize, SSOF_END_OPERATION);
			// end server modifications here

			sc = nullptr; // we do not want to be freed here

			SAFE_FREE((void**)&groupData);
		}
		break;

	case SSA_CONTACT_SET_GROUP:
		// we moved contact to another group
		if (sc->lParam == -1) // the first was an error
			break;

		if (wError) {
			if (wError == 0x0E && sc->lParam == 1) { // second ack - adding failed with error 0x0E, try to add with AVAIT_AUTH flag
				if (!getByte(sc->hContact, "Auth", 0)) { // we tried without AWAIT_AUTH, try again with it
					debugLogA("Contact could not be added without authorization, add with await auth flag.");
					setByte(sc->hContact, "Auth", 1); // we need auth
				}
				else { // we tried with AWAIT_AUTH, try again without
					debugLogA("Contact count not be added awaiting authorization, try authorized.");
					setByte(sc->hContact, "Auth", 0);
				}
				DWORD dwCookie = AllocateCookie(CKT_SERVERLIST, ICQ_LISTS_ADDTOLIST, sc->hContact, sc);
				icq_sendServerContact(sc->hContact, dwCookie, ICQ_LISTS_ADDTOLIST, sc->wNewGroupId, sc->wNewContactId, SSOP_ITEM_ACTION | SSOF_CONTACT, 400, nullptr);

				sc->lParam = 2; // do not cycle
				sc = nullptr; // we do not want to be freed here
				break;
			}
			FreeServerID(sc->wNewContactId, SSIT_ITEM);
			debugLogA("Moving of user to another group on server list failed, error %d", wError);
			icq_LogMessage(LOG_ERROR, LPGEN("Moving of user to another group on server list failed."));

			servlistPendingRemoveContact(sc->hContact, 0, (WORD)(sc->lParam ? sc->wGroupId : sc->wNewGroupId), PENDING_RESULT_FAILED);

			servlistPostPacket(nullptr, 0, SSO_END_OPERATION, 100); // end server modifications here

			if (!sc->lParam) { // is this first ack ?
				sc->lParam = -1;
				sc = nullptr; // this can't be freed here
			}
			break;
		}

		if (sc->lParam) { // is this the second ack ?
			void* groupData;
			int groupSize;
			int bEnd = 1; // shall we end the sever modifications

			setWord(sc->hContact, DBSETTING_SERVLIST_ID, sc->wNewContactId);
			setWord(sc->hContact, DBSETTING_SERVLIST_GROUP, sc->wNewGroupId);

			servlistPendingRemoveContact(sc->hContact, sc->wNewContactId, sc->wNewGroupId, PENDING_RESULT_SUCCESS);

			if (groupData = collectBuddyGroup(sc->wGroupId, &groupSize)) // update the group we moved from
			{ // the group is still not empty, just update it
				updateServerGroupData(sc->wGroupId, groupData, groupSize, 0);
				SAFE_FREE((void**)&groupData); // free the memory
			}
			else { // the group is empty, delete it
				char* szGroup = getServListGroupCListPath(sc->wGroupId);

				servlistRemoveGroup(szGroup, sc->wGroupId);
				SAFE_FREE((void**)&szGroup);
				bEnd = 0; // here the modifications go on
			}

			groupData = collectBuddyGroup(sc->wNewGroupId, &groupSize); // update the group we moved to
			updateServerGroupData(sc->wNewGroupId, groupData, groupSize, bEnd ? SSOF_END_OPERATION : 0);
			// end server modifications here
			SAFE_FREE((void**)&groupData);

		}
		else // contact was deleted from server-list
		{
			delSetting(sc->hContact, DBSETTING_SERVLIST_ID);
			delSetting(sc->hContact, DBSETTING_SERVLIST_GROUP);
			FreeServerID(sc->wContactId, SSIT_ITEM); // release old contact id
			sc->lParam = 1;
			sc = nullptr; // wait for second ack
		}
		break;

	case SSA_CONTACT_FIX_AUTH:
		if (wError) { // FIXME: something failed, we should handle it properly
		}
		break;

	case SSA_GROUP_RENAME:
		if (wError) {
			debugLogA("Renaming of server group failed, error %d", wError);
			icq_LogMessage(LOG_WARNING, LPGEN("Renaming of server group failed."));

			servlistPendingRemoveGroup(sc->szGroup, sc->wGroupId, PENDING_RESULT_FAILED);
		}
		else {
			setServListGroupName(sc->wGroupId, sc->szGroupName);
			removeGroupPathLinks(sc->wGroupId);
			{ // add group to known
				char *szCListGroup = getServListGroupCListPath(sc->wGroupId);

				/// FIXME: need to create link to the new group name before unique item name correction as well
				setServListGroupLinkID(szCListGroup, sc->wGroupId);
				SAFE_FREE((void**)&szCListGroup);
			}
			servlistPendingRemoveGroup(sc->szGroup, sc->wGroupId, PENDING_RESULT_SUCCESS);
		}
		SAFE_FREE((void**)&sc->szGroupName);
		SAFE_FREE((void**)&sc->szGroup);
		break;

	case SSA_SETAVATAR:
		if (wError) {
			debugLogA("Uploading of avatar hash failed.");
			if (sc->wGroupId) { // is avatar added or updated?
				FreeServerID(sc->wContactId, SSIT_ITEM);
				delSetting(DBSETTING_SERVLIST_AVATAR); // to fix old versions
			}
		}
		else setWord(DBSETTING_SERVLIST_AVATAR, sc->wContactId);
		break;

	case SSA_REMOVEAVATAR:
		if (wError)
			debugLogA("Removing of avatar hash failed.");
		else {
			FreeServerID(sc->wContactId, SSIT_ITEM);
			delSetting(DBSETTING_SERVLIST_AVATAR);
		}
		break;

	case SSA_SERVLIST_ACK:
		ProtoBroadcastAck(sc->hContact, ICQACKTYPE_SERVERCLIST, wError ? ACKRESULT_FAILED : ACKRESULT_SUCCESS, (HANDLE)sc->lParam, wError);
		break;

	case SSA_IMPORT:
		if (wError)
			debugLogA("Re-starting import sequence failed, error %d", wError);
		else {
			setWord("SrvImportID", 0);
			delSetting("ImportTS");
		}
		break;

	default:
		debugLogA("Server ack cookie type (%d) not recognized.", sc->dwAction);
	}

	SAFE_FREE((void**)&sc); // free the memory
	return;
}

MCONTACT CIcqProto::HContactFromRecordName(const char* szRecordName, int *bAdded)
{
	MCONTACT hContact = INVALID_CONTACT_ID;

	if (!IsStringUIN(szRecordName))  // probably AIM contact
		hContact = HContactFromUID(0, szRecordName, bAdded);
	else { // this should be ICQ number
		DWORD dwUin = atoi(szRecordName);
		hContact = HContactFromUIN(dwUin, bAdded);
	}
	return hContact;
}

int CIcqProto::getServerDataFromItemTLV(oscar_tlv_chain* pChain, unsigned char *buf) /// FIXME: need to keep original order
{
	// get server-list item's TLV data
	oscar_tlv_chain* list = pChain;
	int datalen = 0;
	icq_packet pBuf;

	// Initialize our handy data buffer
	pBuf.wPlace = 0;
	pBuf.pData = buf;

	while (list) { // collect non-standard TLVs and save them to DB
		if (list->tlv.wType != SSI_TLV_AWAITING_AUTH &&
			 list->tlv.wType != SSI_TLV_NAME &&
			 list->tlv.wType != SSI_TLV_COMMENT &&
			 list->tlv.wType != SSI_TLV_METAINFO_TOKEN &&
			 list->tlv.wType != SSI_TLV_METAINFO_TIME) { // only TLVs which we do not handle on our own
			packTLV(&pBuf, list->tlv.wType, list->tlv.wLen, list->tlv.pData);

			datalen += list->tlv.wLen + 4;
		}
		list = list->next;
	}
	return datalen;
}

void CIcqProto::handleServerCListReply(BYTE *buf, size_t wLen, WORD wFlags, serverthread_info *info)
{
	BYTE bySSIVersion;
	WORD wRecordCount;
	WORD wRecord;
	WORD wGroupId;
	WORD wItemId;
	WORD wTlvType;
	size_t wTlvLength;
	BOOL bIsLastPacket;
	uid_str szRecordName;
	oscar_tlv_chain* pChain = nullptr;
	oscar_tlv* pTLV = nullptr;
	char *szActiveSrvGroup = nullptr;
	WORD wActiveSrvGroupId = -1;

	// If flag bit 1 is set, this is not the last
	// packet. If it is 0, this is the last packet
	// and there will be a timestamp at the end.
	if (wFlags & 0x0001)
		bIsLastPacket = FALSE;
	else
		bIsLastPacket = TRUE;

	if (wLen < 3)
		return;

	// Version number of SSI protocol?
	unpackByte(&buf, &bySSIVersion);
	wLen -= 1;

	// Total count of following entries. This is the size of the server
	// side contact list and should be saved and sent with CLI_CHECKROSTER.
	// NOTE: When the entries are split up in several packets, each packet
	// has it's own count and they must be added to get the total size of
	// server list.
	unpackWord(&buf, &wRecordCount);
	wLen -= 2;
	debugLogA("SSI: number of entries is %u, version is %u", wRecordCount, bySSIVersion);

	// Loop over all items in the packet
	for (wRecord = 0; wRecord < wRecordCount; wRecord++) {
		debugLogA("SSI: parsing record %u", wRecord + 1);

		if (wLen < 10) { // minimum: name length (zero), group ID, item ID, empty TLV
			debugLogA("Warning: SSI parsing error (%d)", 0);
			break;
		}

		if (!unpackServerListItem(&buf, &wLen, szRecordName, &wGroupId, &wItemId, &wTlvType, &wTlvLength)) { // unpack basic structure
			debugLogA("Warning: SSI parsing error (%d)", 1);
			break;
		}

		debugLogA("Name: '%s', GroupID: %u, EntryID: %u, EntryType: %u, TLVlength: %u",
					 szRecordName, wGroupId, wItemId, wTlvType, wTlvLength);

		if (wLen < wTlvLength) {
			debugLogA("Warning: SSI parsing error (%d)", 2);
			break;
		}

		// Initialize the tlv chain
		if (wTlvLength > 0) {
			pChain = readIntoTLVChain(&buf, wTlvLength, 0);
			wLen -= wTlvLength;
		}
		else pChain = nullptr;

		switch (wTlvType) {
		case SSI_ITEM_BUDDY:
			{
				/* this is a contact */
				int bAdded;
				MCONTACT hContact = HContactFromRecordName(szRecordName, &bAdded);

				if (hContact != INVALID_CONTACT_ID) {
					int bRegroup = 0;
					int bNicked = 0;

					if (bAdded) { // Not already on list: added
						debugLogA("SSI added new %s contact '%s'", "ICQ", szRecordName);

						AddJustAddedContact(hContact);
					}
					else { // we should add new contacts and this contact was just added, show it
						if (IsContactJustAdded(hContact)) {
							setContactHidden(hContact, 0);
							bAdded = 1; // we want details for new contacts
						}
						else debugLogA("SSI ignoring existing contact '%s'", szRecordName);

						// Contact on server is always on list
						db_set_b(hContact, "CList", "NotOnList", 0);
					}

					// Save group and item ID
					setWord(hContact, DBSETTING_SERVLIST_ID, wItemId);
					setWord(hContact, DBSETTING_SERVLIST_GROUP, wGroupId);
					ReserveServerID(wItemId, SSIT_ITEM, 0);

					if (!bAdded && getByte("LoadServerDetails", DEFAULT_SS_LOAD)) { // check if the contact has been moved on the server
						if (wActiveSrvGroupId != wGroupId || !szActiveSrvGroup) {
							SAFE_FREE(&szActiveSrvGroup);
							szActiveSrvGroup = getServListGroupCListPath(wGroupId);
							wActiveSrvGroupId = wGroupId;
						}
						char *szLocalGroup = getContactCListGroup(hContact);

						if (!mir_strlen(szLocalGroup)) { // no CListGroup
							SAFE_FREE(&szLocalGroup);

							szLocalGroup = null_strdup(DEFAULT_SS_GROUP);
						}

						if (mir_strcmp(szActiveSrvGroup, szLocalGroup) &&
							 (mir_strlen(szActiveSrvGroup) >= mir_strlen(szLocalGroup) || (szActiveSrvGroup && _strnicmp(szActiveSrvGroup, szLocalGroup, mir_strlen(szLocalGroup))))) { // contact moved to new group or sub-group or not to master group
							bRegroup = 1;
						}
						if (bRegroup && !mir_strcmpi(DEFAULT_SS_GROUP, szActiveSrvGroup)) /// TODO: invent something more clever for "root" group
						{ // is it the default "General" group ?
							bRegroup = 0; // if yes, do not move to it - cause it would hide the contact
						}
						SAFE_FREE(&szLocalGroup);
					}

					if (bRegroup || bAdded) { // if we should load server details or contact was just added, update its group
						if (wActiveSrvGroupId != wGroupId || !szActiveSrvGroup) {
							SAFE_FREE(&szActiveSrvGroup);
							szActiveSrvGroup = getServListGroupCListPath(wGroupId);
							wActiveSrvGroupId = wGroupId;
						}

						if (szActiveSrvGroup) { // try to get Miranda Group path from groupid, if succeeded save to db
							moveContactToCListGroup(hContact, szActiveSrvGroup);
						}
					}

					if (pChain) { // Look for nickname TLV and copy it to the db if necessary
						if (pTLV = pChain->getTLV(SSI_TLV_NAME, 1)) {
							if (pTLV->pData && (pTLV->wLen > 0)) {
								char *pszNick;
								WORD wNickLength;

								wNickLength = pTLV->wLen;

								pszNick = (char*)SAFE_MALLOC(wNickLength + 1);
								// Copy buffer to utf-8 buffer
								memcpy(pszNick, pTLV->pData, wNickLength);
								pszNick[wNickLength] = 0; // Terminate string

								debugLogA("Nickname is '%s'", pszNick);

								bNicked = 1;

								// Write nickname to database
								if (getByte("LoadServerDetails", DEFAULT_SS_LOAD) || bAdded) { // if just added contact, save details always - does no harm
									char *szOldNick;

									if (szOldNick = getSettingStringUtf(hContact, "CList", "MyHandle", nullptr)) {
										if ((mir_strcmp(szOldNick, pszNick)) && (mir_strlen(pszNick) > 0)) { // check if the truncated nick changed, i.e. do not overwrite locally stored longer nick
											if (mir_strlen(szOldNick) <= mir_strlen(pszNick) || strncmp(szOldNick, pszNick, null_strcut(szOldNick, MAX_SSI_TLV_NAME_SIZE))) {
												// Yes, we really do need to delete it first. Otherwise the CLUI nick
												// cache isn't updated (I'll look into it)
												db_unset(hContact, "CList", "MyHandle");
												db_set_utf(hContact, "CList", "MyHandle", pszNick);
											}
										}
										SAFE_FREE(&szOldNick);
									}
									else if (mir_strlen(pszNick) > 0) {
										db_unset(hContact, "CList", "MyHandle");
										db_set_utf(hContact, "CList", "MyHandle", pszNick);
									}
								}
								SAFE_FREE(&pszNick);
							}
							else debugLogA("Invalid nickname");
						}
						if (bAdded && !bNicked)
							icq_QueueUser(hContact); // queue user without nick for fast auto info update

						// Look for comment TLV and copy it to the db if necessary
						if (pTLV = pChain->getTLV(SSI_TLV_COMMENT, 1)) {
							if (pTLV->pData && (pTLV->wLen > 0)) {
								char *pszComment;
								WORD wCommentLength;


								wCommentLength = pTLV->wLen;

								pszComment = (char*)SAFE_MALLOC(wCommentLength + 1);
								// Copy buffer to utf-8 buffer
								memcpy(pszComment, pTLV->pData, wCommentLength);
								pszComment[wCommentLength] = 0; // Terminate string

								debugLogA("Comment is '%s'", pszComment);

								// Write comment to database
								if (getByte("LoadServerDetails", DEFAULT_SS_LOAD) || bAdded) { // if just added contact, save details always - does no harm
									char *szOldComment;

									if (szOldComment = getSettingStringUtf(hContact, "UserInfo", "MyNotes", nullptr)) {
										if ((mir_strcmp(szOldComment, pszComment)) && (mir_strlen(pszComment) > 0)) // check if the truncated comment changed, i.e. do not overwrite locally stored longer comment
											if (mir_strlen(szOldComment) <= mir_strlen(pszComment) || strncmp((char*)szOldComment, (char*)pszComment, null_strcut(szOldComment, MAX_SSI_TLV_COMMENT_SIZE)))
												db_set_utf(hContact, "UserInfo", "MyNotes", pszComment);

										SAFE_FREE((void**)&szOldComment);
									}
									else if (mir_strlen(pszComment) > 0)
										db_set_utf(hContact, "UserInfo", "MyNotes", pszComment);
								}
								SAFE_FREE((void**)&pszComment);
							}
							else debugLogA("Invalid comment");
						}

						// Look for need-authorization TLV
						if (pChain->getTLV(SSI_TLV_AWAITING_AUTH, 1)) {
							setByte(hContact, "Auth", 1);
							debugLogA("SSI contact need authorization");
						}
						else setByte(hContact, "Auth", 0);

						if (pTLV = pChain->getTLV(SSI_TLV_METAINFO_TOKEN, 1)) {
							setSettingBlob(hContact, DBSETTING_METAINFO_TOKEN, pTLV->pData, pTLV->wLen);
							if (pChain->getTLV(SSI_TLV_METAINFO_TIME, 1))
								setSettingDouble(hContact, DBSETTING_METAINFO_TIME, pChain->getDouble(SSI_TLV_METAINFO_TIME, 1));
							debugLogA("SSI contact has meta info token");
						}
						else {
							delSetting(hContact, DBSETTING_METAINFO_TOKEN);
							delSetting(hContact, DBSETTING_METAINFO_TIME);
						}

							{ // store server-list item's TLV data
								BYTE* data = (BYTE*)SAFE_MALLOC(wTlvLength);
								int datalen = getServerDataFromItemTLV(pChain, data);

								if (datalen > 0)
									setSettingBlob(hContact, DBSETTING_SERVLIST_DATA, data, datalen);
								else
									delSetting(hContact, DBSETTING_SERVLIST_DATA);

								SAFE_FREE((void**)&data);
							}
					}
				}
				else // failed to add or other error
					debugLogA("SSI failed to handle %s Item '%s'", "Buddy", szRecordName);
			}
			break;

		case SSI_ITEM_GROUP:
			if ((wGroupId == 0) && (wItemId == 0)) {
				/* list of groups. wTlvType=1, data is TLV(C8) containing list of WORDs which */
				/* is the group ids
				/* we don't need to use this. Our processing is on-the-fly */
				/* this record is always sent first in the first packet only, */
			}
			else if (wGroupId != 0) {
				/* wGroupId != 0: a group record */
				if (wItemId == 0) { /* no item ID: this is a group */
					/* pszRecordName is the name of the group */
					ReserveServerID(wGroupId, SSIT_GROUP, 0);

					setServListGroupName(wGroupId, szRecordName);

					debugLogA("Group %s added to known groups.", szRecordName);

					/* demangle full grouppath, set it to known */
					SAFE_FREE(&szActiveSrvGroup);
					szActiveSrvGroup = getServListGroupCListPath(wGroupId);
					wActiveSrvGroupId = wGroupId;

					/* TLV contains a TLV(C8) with a list of WORDs of contained contact IDs */
					/* our processing is good enough that we don't need this duplication */
				}
				else debugLogA("Unhandled type 0x01, wItemID != 0");
			}
			else debugLogA("Unhandled type 0x01");
			break;

		case SSI_ITEM_PERMIT:
			{
				/* item on visible list */
				/* wItemId not related to contact ID */
				/* pszRecordName is the UIN */
				int bAdded;
				MCONTACT hContact = HContactFromRecordName(szRecordName, &bAdded);

				if (hContact != INVALID_CONTACT_ID) {
					if (bAdded) {
						debugLogA("SSI added new %s contact '%s'", "Permit", szRecordName);
						// It wasn't previously in the list, we hide it so it only appears in the visible list
						setContactHidden(hContact, 1);
						// Add it to the list, so it can be added properly if proper contact
						AddJustAddedContact(hContact);
					}
					else debugLogA("SSI %s contact already exists '%s'", "Permit", szRecordName);

					// Save permit ID
					setWord(hContact, DBSETTING_SERVLIST_PERMIT, wItemId);
					ReserveServerID(wItemId, SSIT_ITEM, 0);
					// Set apparent mode
					setWord(hContact, "ApparentMode", ID_STATUS_ONLINE);
					debugLogA("Visible-contact (%s)", szRecordName);
				}
				else { // failed to add or other error
					debugLogA("SSI failed to handle %s Item '%s'", "Permit", szRecordName);
					ReserveServerID(wItemId, SSIT_ITEM, SSIF_UNHANDLED);
				}
			}
			break;

		case SSI_ITEM_DENY:
			{
				/* Item on invisible list */
				/* wItemId not related to contact ID */
				/* pszRecordName is the UIN */
				int bAdded;
				MCONTACT hContact = HContactFromRecordName(szRecordName, &bAdded);

				if (hContact != INVALID_CONTACT_ID) {
					if (bAdded) {
						/* not already on list: added */
						debugLogA("SSI added new %s contact '%s'", "Deny", szRecordName);
						// It wasn't previously in the list, we hide it so it only appears in the visible list
						setContactHidden(hContact, 1);
						// Add it to the list, so it can be added properly if proper contact
						AddJustAddedContact(hContact);
					}
					else debugLogA("SSI %s contact already exists '%s'", "Deny", szRecordName);

					// Save Deny ID
					setWord(hContact, DBSETTING_SERVLIST_DENY, wItemId);
					ReserveServerID(wItemId, SSIT_ITEM, 0);

					// Set apparent mode
					setWord(hContact, "ApparentMode", ID_STATUS_OFFLINE);
					debugLogA("Invisible-contact (%s)", szRecordName);
				}
				else { // failed to add or other error
					debugLogA("SSI failed to handle %s Item '%s'", "Deny", szRecordName);
					ReserveServerID(wItemId, SSIT_ITEM, SSIF_UNHANDLED);
				}
			}
			break;

		case SSI_ITEM_VISIBILITY: /* My visibility settings */
			// Look for visibility TLV
			if (BYTE bVisibility = pChain->getByte(SSI_TLV_VISIBILITY, 1)) { // found it, store the id, we do not need current visibility - we do not rely on it
				setWord(DBSETTING_SERVLIST_PRIVACY, wItemId);
				ReserveServerID(wItemId, SSIT_ITEM, 0);

				debugLogA("Visibility is %u", bVisibility);
			}
			else ReserveServerID(wItemId, SSIT_ITEM, SSIF_UNHANDLED);
			break;

		case SSI_ITEM_IGNORE:
			{
				/* item on ignore list */
				/* wItemId not related to contact ID */
				/* pszRecordName is the UIN */
				int bAdded;
				MCONTACT hContact = HContactFromRecordName(szRecordName, &bAdded);

				if (hContact != INVALID_CONTACT_ID) {
					if (bAdded) {
						/* not already on list: add */
						debugLogA("SSI added new %s contact '%s'", "Ignore", szRecordName);
						// It wasn't previously in the list, we hide it
						setContactHidden(hContact, 1);
						// Add it to the list, so it can be added properly if proper contact
						AddJustAddedContact(hContact);
					}
					else debugLogA("SSI %s contact already exists '%s'", "Ignore", szRecordName);

					// Save Ignore ID
					setWord(hContact, DBSETTING_SERVLIST_IGNORE, wItemId);
					ReserveServerID(wItemId, SSIT_ITEM, 0);

					// Set apparent mode & ignore
					setWord(hContact, "ApparentMode", ID_STATUS_OFFLINE);
					// set ignore all events
					CallService(MS_IGNORE_IGNORE, hContact, IGNOREEVENT_ALL);
					debugLogA("Ignore-contact (%s)", szRecordName);
				}
				else { // failed to add or other error
					debugLogA("SSI failed to handle %s Item '%s'", "Ignore", szRecordName);
					ReserveServerID(wItemId, SSIT_ITEM, SSIF_UNHANDLED);
				}
			}
			break;

		case SSI_ITEM_UNKNOWN2:
			debugLogA("SSI unknown type 0x11");

			ReserveServerID(wItemId, SSIT_ITEM, SSIF_UNHANDLED);
			break;

		case SSI_ITEM_IMPORTTIME:
			if (wGroupId == 0) {
				/* time our list was first imported */
				/* pszRecordName is "Import Time" */
				/* data is TLV(13) {TLV(D4) {time_t importTime}} */
				setDword("ImportTS", pChain->getDWord(SSI_TLV_TIMESTAMP, 1));
				setWord("SrvImportID", wItemId);
				ReserveServerID(wItemId, SSIT_ITEM, 0);
				debugLogA("SSI %s item recognized", "first import");
			}
			break;

		case SSI_ITEM_BUDDYICON:
			if (wGroupId == 0) {
				/* our avatar MD5-hash */
				/* pszRecordName is "1" */
				/* data is TLV(D5) hash */
				/* we ignore this, just save the id */
				/* cause we get the hash again after login */
				if (!mir_strcmp(szRecordName, "12")) { // need to handle Photo Item separately
					setWord(DBSETTING_SERVLIST_PHOTO, wItemId);
					debugLogA("SSI %s item recognized", "Photo");
				}
				else {
					setWord(DBSETTING_SERVLIST_AVATAR, wItemId);
					debugLogA("SSI %s item recognized", "Avatar");
				}
				ReserveServerID(wItemId, SSIT_ITEM, 0);
			}
			break;

		case SSI_ITEM_METAINFO:
			if (wGroupId == 0) {
				/* our meta info token & last update time */
				/* pszRecordName is "ICQ-MDIR" */
				/* data is TLV(15C) and TLV(15D) */
				oscar_tlv* pToken = pChain->getTLV(SSI_TLV_METAINFO_TOKEN, 1);
				oscar_tlv* pTime = pChain->getTLV(SSI_TLV_METAINFO_TIME, 1);
				if (pToken)
					setSettingBlob(NULL, DBSETTING_METAINFO_TOKEN, pToken->pData, pToken->wLen);
				if (pTime)
					setSettingDouble(NULL, DBSETTING_METAINFO_TIME, pChain->getDouble(SSI_TLV_METAINFO_TIME, 1));

				setWord(DBSETTING_SERVLIST_METAINFO, wItemId);
				ReserveServerID(wItemId, SSIT_ITEM, 0);

				debugLogA("SSI %s item recognized", "Meta info");
			}
			break;

		case SSI_ITEM_CLIENTDATA:
			if (wGroupId == 0) {
				/* ICQ2k ShortcutBar Items */
				/* data is TLV(CD) text */
				if (wItemId)
					ReserveServerID(wItemId, SSIT_ITEM, SSIF_UNHANDLED);
			}

		case SSI_ITEM_SAVED:
		case SSI_ITEM_PREAUTH:
			break;

		default:
			debugLogA("SSI unhandled item %2x", wTlvType);

			if (wItemId)
				ReserveServerID(wItemId, SSIT_ITEM, SSIF_UNHANDLED);
			break;
		}

		disposeChain(&pChain);
	} // end for

	// Release Memory
	SAFE_FREE(&szActiveSrvGroup);

	debugLogA("Bytes left: %u", wLen);

	setWord("SrvRecordCount", (WORD)(wRecord + getWord("SrvRecordCount", 0)));

	if (bIsLastPacket) {
		// No contacts left to sync
		bIsSyncingCL = FALSE;

		StoreServerIDs();

		icq_RescanInfoUpdate();

		if (wLen >= 4) {
			DWORD dwLastUpdateTime;

			/* finally we get a time_t of the last update time */
			unpackDWord(&buf, &dwLastUpdateTime);
			setDword("SrvLastUpdate", dwLastUpdateTime);
			debugLogA("Last update of server list was (%u) %s", dwLastUpdateTime, time2text(dwLastUpdateTime));

			sendRosterAck();
			handleServUINSettings(wListenPort, info);

			servlistProcessLogin();
		}
		else debugLogA("Last packet missed update time...");

		if (getWord("SrvRecordCount", 0) == 0) { // we got empty serv-list, create master group
			cookie_servlist_action* ack = (cookie_servlist_action*)SAFE_MALLOC(sizeof(cookie_servlist_action));
			if (ack) {
				DWORD dwCookie;

				ack->dwAction = SSA_GROUP_UPDATE;
				ack->szGroupName = null_strdup("");
				dwCookie = AllocateCookie(CKT_SERVERLIST, ICQ_LISTS_ADDTOLIST, 0, ack);
				icq_sendServerGroup(dwCookie, ICQ_LISTS_ADDTOLIST, 0, ack->szGroupName, nullptr, 0, 0);
			}
		}
		// serv-list sync finished, clear just added contacts
		FlushJustAddedContacts();
	}
	else debugLogA("Waiting for more packets");
}

void CIcqProto::handleServerCListItemAdd(WORD wItemId, WORD wItemType, oscar_tlv_chain *pItemData)
{
	if (wItemType == SSI_ITEM_IMPORTTIME) {
		if (pItemData) {
			setDword("ImportTS", pItemData->getDWord(SSI_TLV_TIMESTAMP, 1));
			setWord("SrvImportID", wItemId);
			ReserveServerID(wItemId, SSIT_ITEM, 0);

			debugLogA("Server added Import timestamp to list");
			return;
		}
	}
	// Reserve server-list ID
	ReserveServerID(wItemId, wItemType == SSI_ITEM_GROUP ? SSIT_GROUP : SSIT_ITEM, SSIF_UNHANDLED);
}

void CIcqProto::handleServerCListItemUpdate(const char *szRecordName, WORD wItemType, oscar_tlv_chain *pItemData)
{
	MCONTACT hContact = (wItemType == SSI_ITEM_BUDDY || wItemType == SSI_ITEM_DENY || wItemType == SSI_ITEM_PERMIT || wItemType == SSI_ITEM_IGNORE) ? HContactFromRecordName(szRecordName, nullptr) : NULL;

	if (hContact != INVALID_CONTACT_ID && wItemType == SSI_ITEM_BUDDY) { // a contact was updated on server
		if (pItemData) {
			oscar_tlv *pAuth = pItemData->getTLV(SSI_TLV_AWAITING_AUTH, 1);
			BYTE bAuth = getByte(hContact, "Auth", 0);

			if (bAuth && !pAuth) { // server authorized our contact
				char str[MAX_PATH];
				char msg[MAX_PATH];
				char *nick = NickFromHandleUtf(hContact);

				setByte(hContact, "Auth", 0);
				mir_snprintf(str, ICQTranslateUtfStatic(LPGEN("Contact \"%s\" was authorized in the server list."), msg, _countof(msg)), nick);
				icq_LogMessage(LOG_WARNING, str);
				SAFE_FREE(&nick);
			}
			else if (!bAuth && pAuth) { // server took away authorization of our contact
				char str[MAX_PATH];
				char msg[MAX_PATH];
				char *nick = NickFromHandleUtf(hContact);

				setByte(hContact, "Auth", 1);
				mir_snprintf(str, ICQTranslateUtfStatic(LPGEN("Contact \"%s\" lost its authorization in the server list."), msg, _countof(msg)), nick);
				icq_LogMessage(LOG_WARNING, str);
				SAFE_FREE(&nick);
			}
			{
				// update metainfo data
				DBVARIANT dbv = { 0 };
				oscar_tlv *pToken = pItemData->getTLV(SSI_TLV_METAINFO_TOKEN, 1);
				oscar_tlv *pTime = pItemData->getTLV(SSI_TLV_METAINFO_TIME, 1);

				if (!getSetting(hContact, DBSETTING_METAINFO_TOKEN, &dbv)) {
					if (!pToken || dbv.cpbVal != pToken->wLen || memcmp(dbv.pbVal, pToken->pData, dbv.cpbVal)) {
						if (!pToken)
							debugLogA("Contact %s, meta info token removed", szRecordName);
						else
							debugLogA("Contact %s, meta info token changed", szRecordName);

						// user info was changed, refresh
						if (IsMetaInfoChanged(hContact))
							icq_QueueUser(hContact);
					}

					db_free(&dbv);
				}
				else if (pToken) {
					debugLogA("Contact %s, meta info token added", szRecordName);

					// user info was changed, refresh
					if (IsMetaInfoChanged(hContact))
						icq_QueueUser(hContact);
				}

				if (pToken)
					setSettingBlob(hContact, DBSETTING_METAINFO_TOKEN, pToken->pData, pToken->wLen);
				if (pTime)
					setSettingDouble(hContact, DBSETTING_METAINFO_TIME, pItemData->getDouble(SSI_TLV_METAINFO_TIME, 1));
			}
			{
				// update server's data - otherwise consequent operations can fail with 0x0E
				BYTE *data = (BYTE*)_alloca(pItemData->getChainLength());
				int datalen = getServerDataFromItemTLV(pItemData, data);

				if (datalen > 0)
					setSettingBlob(hContact, DBSETTING_SERVLIST_DATA, data, datalen);
				else
					delSetting(hContact, DBSETTING_SERVLIST_DATA);
			}
		}
	}
	else if (wItemType == SSI_ITEM_METAINFO) { // owner MetaInfo data updated
		if (pItemData) {
			DBVARIANT dbv = { 0 };
			oscar_tlv *pToken = pItemData->getTLV(SSI_TLV_METAINFO_TOKEN, 1);
			oscar_tlv *pTime = pItemData->getTLV(SSI_TLV_METAINFO_TIME, 1);

			if (!getSetting(hContact, DBSETTING_METAINFO_TOKEN, &dbv)) {
				if (!pToken || dbv.cpbVal != pToken->wLen || memcmp(dbv.pbVal, pToken->pData, dbv.cpbVal)) {
					if (!pToken)
						debugLogA("Owner meta info token removed");
					else
						debugLogA("Owner meta info token changed");
				}

				db_free(&dbv);
			}

			if (pToken)
				setSettingBlob(hContact, DBSETTING_METAINFO_TOKEN, pToken->pData, pToken->wLen);
			if (pTime)
				setSettingDouble(hContact, DBSETTING_METAINFO_TIME, pItemData->getDouble(SSI_TLV_METAINFO_TIME, 1));
		}
	}
	else if (wItemType == SSI_ITEM_GROUP) // group updated
		debugLogA("Server updated our group \"%s\" on list", szRecordName);
}

void CIcqProto::handleServerCListItemDelete(const char *szRecordName, WORD wItemId, WORD wItemType)
{
	MCONTACT hContact = (wItemType == SSI_ITEM_BUDDY || wItemType == SSI_ITEM_DENY || wItemType == SSI_ITEM_PERMIT || wItemType == SSI_ITEM_IGNORE) ? HContactFromRecordName(szRecordName, nullptr) : NULL;

	if (hContact != INVALID_CONTACT_ID && wItemType == SSI_ITEM_BUDDY) { // a contact was removed from our list
		if (getWord(hContact, DBSETTING_SERVLIST_ID, 0) == wItemId) {
			delSetting(hContact, DBSETTING_SERVLIST_ID);
			delSetting(hContact, DBSETTING_SERVLIST_GROUP);
			delSetting(hContact, "Auth");

			char str[MAX_PATH];
			char msg[MAX_PATH];
			char *nick = NickFromHandleUtf(hContact);

			mir_snprintf(str, ICQTranslateUtfStatic(LPGEN("User \"%s\" was removed from server list."), msg, _countof(msg)), nick);
			icq_LogMessage(LOG_WARNING, str);
			SAFE_FREE(&nick);
		}
	}
	// Release server-list ID
	FreeServerID(wItemId, wItemType == SSI_ITEM_GROUP ? SSIT_GROUP : SSIT_ITEM);
}

void CIcqProto::handleRecvAuthRequest(unsigned char *buf, size_t wLen)
{
	DWORD dwUin;
	uid_str szUid;
	if (!unpackUID(&buf, &wLen, &dwUin, &szUid))
		return;

	if (dwUin && IsOnSpammerList(dwUin)) {
		debugLogA("Ignored Message from known Spammer");
		return;
	}

	WORD wReasonLen;
	unpackWord(&buf, &wReasonLen);
	wLen -= 2;
	if (wReasonLen > wLen)
		return;

	int bAdded;
	MCONTACT hContact = HContactFromUID(dwUin, szUid, &bAdded);

	// Prepare reason
	char *szReason = (char*)SAFE_MALLOC(wReasonLen + 1);
	if (szReason) {
		memcpy(szReason, buf, wReasonLen);
		szReason[wReasonLen] = '\0';
	}

	// Read nick name from DB
	char *szNick;
	if (dwUin)
		szNick = getSettingStringUtf(hContact, "Nick", nullptr);
	else
		szNick = null_strdup(szUid);

	DB_AUTH_BLOB blob(hContact, szNick, nullptr, nullptr, nullptr, szReason);
	blob.set_uin(dwUin);

	setByte(hContact, "Grant", 1);

	// TODO: Change for new auth system, include all known informations
	PROTORECVEVENT pre = { 0 };
	pre.timestamp = time(0);
	pre.lParam = blob.size();
	pre.szMessage = blob;
	ProtoChainRecv(hContact, PSR_AUTH, 0, (LPARAM)&pre);

	SAFE_FREE(&szNick);
	SAFE_FREE(&szReason);
}

void CIcqProto::handleRecvAdded(unsigned char *buf, size_t wLen)
{
	PBYTE pBlob, pCurBlob;
	DBVARIANT dbv = { 0 };

	DWORD dwUin;
	uid_str szUid;
	if (!unpackUID(&buf, &wLen, &dwUin, &szUid))
		return;

	if (dwUin && IsOnSpammerList(dwUin)) {
		debugLogA("Ignored Message from known Spammer");
		return;
	}

	int bAdded;
	MCONTACT hContact = HContactFromUID(dwUin, szUid, &bAdded);

	size_t nNickLen, cbBlob = sizeof(DWORD) * 2 + 4;

	char *szNick = nullptr;
	if (dwUin) {
		if (getString(hContact, "Nick", &dbv))
			nNickLen = 0;
		else {
			szNick = dbv.pszVal;
			nNickLen = mir_strlen(szNick);
		}
	}
	else nNickLen = mir_strlen(szUid);

	cbBlob += nNickLen;

	pCurBlob = pBlob = (PBYTE)_alloca(cbBlob);
	/*blob is: uin(DWORD), hContact(HANDLE), nick(ASCIIZ), first(ASCIIZ), last(ASCIIZ), email(ASCIIZ) */
	*(DWORD*)pCurBlob = dwUin; pCurBlob += sizeof(DWORD);
	*(DWORD*)pCurBlob = hContact; pCurBlob += sizeof(DWORD);
	if (nNickLen && dwUin) { // if we have nick we add it, otherwise keep trailing zero
		memcpy(pCurBlob, szNick, nNickLen);
		pCurBlob += nNickLen;
	}
	else {
		memcpy(pCurBlob, szUid, nNickLen);
		pCurBlob += nNickLen;
	}
	*(char*)pCurBlob = 0; pCurBlob++;
	*(char*)pCurBlob = 0; pCurBlob++;
	*(char*)pCurBlob = 0; pCurBlob++;
	*(char*)pCurBlob = 0;
	// TODO: Change for new auth system

	AddEvent(NULL, EVENTTYPE_ADDED, time(0), 0, cbBlob, pBlob);
}

void CIcqProto::handleRecvAuthResponse(unsigned char *buf, size_t wLen)
{
	DWORD dwUin;
	uid_str szUid;
	char* szNick = nullptr;
	WORD nReasonLen;
	char* szReason;
	int bAdded;

	BYTE bResponse = 0xFF;

	if (!unpackUID(&buf, &wLen, &dwUin, &szUid)) return;

	if (dwUin && IsOnSpammerList(dwUin)) {
		debugLogA("Ignored Message from known Spammer");
		return;
	}

	MCONTACT hContact = HContactFromUID(dwUin, szUid, &bAdded);
	if (hContact != INVALID_CONTACT_ID)
		szNick = NickFromHandle(hContact);

	if (wLen > 0) {
		unpackByte(&buf, &bResponse);
		wLen -= 1;
	}
	if (wLen >= 2) {
		unpackWord(&buf, &nReasonLen);
		wLen -= 2;
		if (wLen >= nReasonLen) {
			szReason = (char*)_alloca(nReasonLen + 1);
			unpackString(&buf, szReason, nReasonLen);
			szReason[nReasonLen] = '\0';
		}
	}

	switch (bResponse) {
	case 0:
		debugLogA("Authorization request %s by %s", "denied", strUID(dwUin, szUid));
		// TODO: Add to system history as soon as new auth system is ready
		break;

	case 1:
		setByte(hContact, "Auth", 0);
		debugLogA("Authorization request %s by %s", "granted", strUID(dwUin, szUid));
		// TODO: Add to system history as soon as new auth system is ready
		break;

	default:
		debugLogA("Unknown Authorization request response (%u) from %s", bResponse, strUID(dwUin, szUid));
		break;

	}
	SAFE_FREE(&szNick);
}

// Updates the visibility code used while in SSI mode. If a server ID is
// not stored in the local DB, a new ID will be added to the server list.
//
// Possible values are:
//   01 - Allow all users to see you
//   02 - Block all users from seeing you
//   03 - Allow only users in the permit list to see you
//   04 - Block only users in the invisible list from seeing you
//   05 - Allow only users in the buddy list to see you
//
void CIcqProto::updateServVisibilityCode(BYTE bCode)
{
	icq_packet packet;
	WORD wVisibilityID;
	WORD wCommand;

	if ((bCode > 0) && (bCode < 6)) {
		cookie_servlist_action* ack;
		DWORD dwCookie;
		BYTE bVisibility = getByte("SrvVisibility", 0);

		if (bVisibility == bCode) // if no change was made, not necescary to update that
			return;
		setByte("SrvVisibility", bCode);

		// Do we have a known server visibility ID? We should, unless we just subscribed to the serv-list for the first time
		if ((wVisibilityID = getWord(DBSETTING_SERVLIST_PRIVACY, 0)) == 0) {
			// No, create a new random ID
			wVisibilityID = GenerateServerID(SSIT_ITEM, 0);
			setWord(DBSETTING_SERVLIST_PRIVACY, wVisibilityID);
			wCommand = ICQ_LISTS_ADDTOLIST;

			debugLogA("Made new srvVisibilityID, id is %u, code is %u", wVisibilityID, bCode);
		}
		else {
			debugLogA("Reused srvVisibilityID, id is %u, code is %u", wVisibilityID, bCode);
			wCommand = ICQ_LISTS_UPDATEGROUP;
		}

		ack = (cookie_servlist_action*)SAFE_MALLOC(sizeof(cookie_servlist_action));
		if (!ack) {
			debugLogA("Cookie alloc failure.");
			return; // out of memory, go away
		}

		ack->dwAction = SSA_VISIBILITY; // update visibility
		dwCookie = AllocateCookie(CKT_SERVERLIST, wCommand, 0, ack); // take cookie

		// Build and send packet
		serverPacketInit(&packet, 25);
		packFNACHeader(&packet, ICQ_LISTS_FAMILY, wCommand, 0, dwCookie);
		packWord(&packet, 0);                   // Name (null)
		packWord(&packet, 0);                   // GroupID (0 if not relevant)
		packWord(&packet, wVisibilityID);       // EntryID
		packWord(&packet, SSI_ITEM_VISIBILITY); // EntryType
		packWord(&packet, 5);                   // Length in bytes of following TLV
		packTLV(&packet, SSI_TLV_VISIBILITY, 1, &bCode);  // TLV (Visibility)
		sendServPacket(&packet);
		// There is no need to send ICQ_LISTS_CLI_MODIFYSTART or
		// ICQ_LISTS_CLI_MODIFYEND when modifying the visibility code
	}
}

// Updates the avatar hash used while in SSI mode. If a server ID is
// not stored in the local DB, a new ID will be added to the server list.
void CIcqProto::updateServAvatarHash(BYTE *pHash, int size)
{
	void** pDoubleObject = nullptr;
	void* doubleObject = nullptr;
	DWORD dwOperationFlags = 0;
	WORD wAvatarID;
	WORD wCommand;
	char szItemName[2] = { 0, 0 };
	int bResetHash = 0;
	DBVARIANT dbvHash;

	if (!pHash)
		return;

	if (!getSetting(NULL, "AvatarHash", &dbvHash)) {
		szItemName[0] = 0x30 + dbvHash.pbVal[1];

		if (memcmp(pHash, dbvHash.pbVal, 2) != 0) // add code to remove old hash from server
			bResetHash = 1;

		db_free(&dbvHash);
	}

	if (bResetHash) { // start update session
		// pair the packets (need to be send in the correct order
		dwOperationFlags |= SSOF_BEGIN_OPERATION | SSOF_END_OPERATION;
		pDoubleObject = &doubleObject;
	}

	if (bResetHash) {
		// Do we have a known server avatar ID?
		if (wAvatarID = getWord(DBSETTING_SERVLIST_AVATAR, 0)) {
			cookie_servlist_action *ack = (cookie_servlist_action*)SAFE_MALLOC(sizeof(cookie_servlist_action));
			if (!ack) {
				debugLogA("Cookie alloc failure.");
				return; // out of memory, go away
			}
			ack->dwAction = SSA_REMOVEAVATAR; // update avatar hash
			ack->wContactId = wAvatarID;
			DWORD dwCookie = AllocateCookie(CKT_SERVERLIST, ICQ_LISTS_REMOVEFROMLIST, 0, ack); // take cookie
			icq_sendServerItem(dwCookie, ICQ_LISTS_REMOVEFROMLIST, 0, wAvatarID, szItemName, nullptr, 0, SSI_ITEM_BUDDYICON, SSOP_ITEM_ACTION | dwOperationFlags, 400, pDoubleObject);
		}
	}

	WORD hashsize = size - 2;

	// Do we have a known server avatar ID? We should, unless we just subscribed to the serv-list for the first time
	if (bResetHash || (wAvatarID = getWord(DBSETTING_SERVLIST_AVATAR, 0)) == 0) {
		// No, create a new random ID
		wAvatarID = GenerateServerID(SSIT_ITEM, 0);
		wCommand = ICQ_LISTS_ADDTOLIST;
		debugLogA("Made new srvAvatarID, id is %u", wAvatarID);
	}
	else {
		debugLogA("Reused srvAvatarID, id is %u", wAvatarID);
		wCommand = ICQ_LISTS_UPDATEGROUP;
	}

	cookie_servlist_action *ack = (cookie_servlist_action*)SAFE_MALLOC(sizeof(cookie_servlist_action));
	if (!ack) {
		debugLogA("Cookie alloc failure.");
		return; // out of memory, go away
	}
	ack->dwAction = SSA_SETAVATAR; // update avatar hash
	ack->wContactId = wAvatarID;
	DWORD dwCookie = AllocateCookie(CKT_SERVERLIST, wCommand, 0, ack); // take cookie

	szItemName[0] = 0x30 + pHash[1];

	// Build the packet
	WORD wTLVlen = 8 + hashsize;

	// Initialize our handy data buffer
	icq_packet pBuffer;
	pBuffer.wPlace = 0;
	pBuffer.pData = (BYTE *)_alloca(wTLVlen);
	pBuffer.wLen = wTLVlen;

	packTLV(&pBuffer, SSI_TLV_NAME, 0, nullptr);                    // TLV (Name)
	packTLV(&pBuffer, SSI_TLV_AVATARHASH, hashsize, pHash + 2);  // TLV (Hash)

	icq_sendServerItem(dwCookie, wCommand, 0, wAvatarID, szItemName, pBuffer.pData, wTLVlen, SSI_ITEM_BUDDYICON, SSOP_ITEM_ACTION | dwOperationFlags, 400, pDoubleObject);
	// There is no need to send ICQ_LISTS_CLI_MODIFYSTART or
	// ICQ_LISTS_CLI_MODIFYEND when modifying the avatar hash
}

// Should be called before the server list is modified. When all
// modifications are done, call icq_sendServerEndOperation().
// Called automatically thru server-list update board!
void CIcqProto::icq_sendServerBeginOperation(int bImport)
{
	WORD wImportID = getWord("SrvImportID", 0);

	if (bImport && wImportID) { // we should be importing, check if already have import item
		if (getDword("ImportTS", 0) + 604800 < getDword("LogonTS", 0)) { // is the timestamp week older, clear it and begin new import
			DWORD dwCookie;
			cookie_servlist_action* ack;

			if (ack = (cookie_servlist_action*)SAFE_MALLOC(sizeof(cookie_servlist_action))) { // we have cookie good, go on
				ack->dwAction = SSA_IMPORT;
				dwCookie = AllocateCookie(CKT_SERVERLIST, ICQ_LISTS_REMOVEFROMLIST, 0, ack);

				icq_sendSimpleItem(dwCookie, ICQ_LISTS_REMOVEFROMLIST, 0, "ImportTime", 0, wImportID, SSI_ITEM_IMPORTTIME, SSOP_ITEM_ACTION | SSOF_SEND_DIRECTLY, 100);
			}
		}
	}

	icq_packet packet;
	serverPacketInit(&packet, bImport ? 14 : 10);
	packFNACHeader(&packet, ICQ_LISTS_FAMILY, ICQ_LISTS_CLI_MODIFYSTART);
	if (bImport)
		packDWord(&packet, 1 << 0x10);
	sendServPacket(&packet);
}

// Should be called after the server list has been modified to inform
// the server that we are done.
// Called automatically thru server-list update board!
void CIcqProto::icq_sendServerEndOperation()
{
	icq_packet packet;
	serverPacketInit(&packet, 10);
	packFNACHeader(&packet, ICQ_LISTS_FAMILY, ICQ_LISTS_CLI_MODIFYEND);
	sendServPacket(&packet);
}

// Sent when the last roster packet has been received
void CIcqProto::sendRosterAck(void)
{
	icq_packet packet;
	serverPacketInit(&packet, 10);
	packFNACHeader(&packet, ICQ_LISTS_FAMILY, ICQ_LISTS_GOTLIST);
	sendServPacket(&packet);

	debugLogA("Sent SNAC(x13,x07) - CLI_ROSTERACK");
}