favoritemanager.cpp

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/*
 * Copyright (C) 2001-2006 Jacek Sieka, arnetheduck on gmail point com
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "stdinc.h"
#include "DCPlusPlus.h"

#include "FavoriteManager.h"

#include "ClientManager.h"
#include "ResourceManager.h"
#include "CryptoManager.h"

#include "HttpConnection.h"
#include "StringTokenizer.h"
#include "SimpleXML.h"
#include "UserCommand.h"

UserCommand FavoriteManager::addUserCommand(int type, int ctx, int flags, const string& name, const string& command, const string& hub) {
	// No dupes, add it...
	Lock l(cs);
	userCommands.push_back(UserCommand(lastId++, type, ctx, flags, name, command, hub));
	UserCommand& uc = userCommands.back();
	if(!uc.isSet(UserCommand::FLAG_NOSAVE)) 
		save();
	return userCommands.back();
}

bool FavoriteManager::getUserCommand(int cid, UserCommand& uc) {
	Lock l(cs);
	for(UserCommand::Iter i = userCommands.begin(); i != userCommands.end(); ++i) {
		if(i->getId() == cid) {
			uc = *i;
			return true;
		}
	}
	return false;
}

bool FavoriteManager::moveUserCommand(int cid, int pos) {
	dcassert(pos == -1 || pos == 1);
	Lock l(cs);
	for(UserCommand::Iter i = userCommands.begin(); i != userCommands.end(); ++i) {
		if(i->getId() == cid) {
			swap(*i, *(i + pos));
			return true;
		}
	}
	return false;
}

void FavoriteManager::updateUserCommand(const UserCommand& uc) {
	bool nosave = true;
	Lock l(cs);
	for(UserCommand::Iter i = userCommands.begin(); i != userCommands.end(); ++i) {
		if(i->getId() == uc.getId()) {
			*i = uc;
			nosave = uc.isSet(UserCommand::FLAG_NOSAVE);
			break;
		}
	}
	if(!nosave)
		save();
}

int FavoriteManager::findUserCommand(const string& aName) {
	Lock l(cs);
	for(UserCommand::Iter i = userCommands.begin(); i != userCommands.end(); ++i) {
		if(i->getName() == aName) {
			return i->getId();
		}
	}
	return -1;
}

void FavoriteManager::removeUserCommand(int cid) {
	bool nosave = true;
	Lock l(cs);
	for(UserCommand::Iter i = userCommands.begin(); i != userCommands.end(); ++i) {
		if(i->getId() == cid) {
			nosave = i->isSet(UserCommand::FLAG_NOSAVE);
			userCommands.erase(i);
			break;
		}
	}
	if(!nosave)
		save();
}
void FavoriteManager::removeUserCommand(const string& srv) {
	Lock l(cs);
	for(UserCommand::Iter i = userCommands.begin(); i != userCommands.end(); ) {
		if((i->getHub() == srv) && i->isSet(UserCommand::FLAG_NOSAVE)) {
			i = userCommands.erase(i);
		} else {
			++i;
		}
	}
}

void FavoriteManager::removeHubUserCommands(int ctx, const string& hub) {
	Lock l(cs);
	for(UserCommand::Iter i = userCommands.begin(); i != userCommands.end(); ) {
		if(i->getHub() == hub && i->isSet(UserCommand::FLAG_NOSAVE) && i->getCtx() & ctx) {
			i = userCommands.erase(i);
		} else {
			++i;
		}
	}
}

void FavoriteManager::addFavoriteUser(User::Ptr& aUser) { 
	Lock l(cs);
	if(users.find(aUser->getCID()) == users.end()) {
		aUser->setFlag(User::SAVE_NICK);
		StringList urls = ClientManager::getInstance()->getHubs(aUser->getCID());
		StringList nicks = ClientManager::getInstance()->getNicks(aUser->getCID());
        
		/// @todo make this an error probably...
		if(urls.empty())
			urls.push_back(Util::emptyString);
		if(nicks.empty())
			nicks.push_back(Util::emptyString);

		FavoriteMap::iterator i = users.insert(make_pair(aUser->getCID(), FavoriteUser(aUser, nicks[0], urls[0]))).first;
		fire(FavoriteManagerListener::UserAdded(), i->second);
		save();
	}
}

void FavoriteManager::removeFavoriteUser(User::Ptr& aUser) {
	Lock l(cs);
	FavoriteMap::iterator i = users.find(aUser->getCID());
	if(i != users.end()) {
		fire(FavoriteManagerListener::UserRemoved(), i->second);
		users.erase(i);
		save();
	}
}

void FavoriteManager::addFavorite(const FavoriteHubEntry& aEntry) {
	FavoriteHubEntry* f;

	FavoriteHubEntry::Iter i = getFavoriteHub(aEntry.getServer());
	if(i != favoriteHubs.end()) {
		return;
	}
	f = new FavoriteHubEntry(aEntry);
	favoriteHubs.push_back(f);
	fire(FavoriteManagerListener::FavoriteAdded(), f);
	save();
}

void FavoriteManager::removeFavorite(FavoriteHubEntry* entry) {
	FavoriteHubEntry::Iter i = find(favoriteHubs.begin(), favoriteHubs.end(), entry);
	if(i == favoriteHubs.end()) {
		return;
	}

	fire(FavoriteManagerListener::FavoriteRemoved(), entry);
	favoriteHubs.erase(i);
	delete entry;
	save();
}

bool FavoriteManager::checkFavHubExists(const FavoriteHubEntry& aEntry){
	FavoriteHubEntry::Iter i = getFavoriteHub(aEntry.getServer());
	if(i != favoriteHubs.end()) {
		return true;
	}
	return false;
}

bool FavoriteManager::addFavoriteDir(const string& aDirectory, const string & aName){
	string path = aDirectory;

	if( path[ path.length() -1 ] != PATH_SEPARATOR )
		path += PATH_SEPARATOR;

	for(StringPairIter i = favoriteDirs.begin(); i != favoriteDirs.end(); ++i) {
		if((Util::strnicmp(path, i->first, i->first.length()) == 0) && (Util::strnicmp(path, i->first, path.length()) == 0)) {
			return false;
		}
		if(Util::stricmp(aName, i->second) == 0) {
			return false;
		}
	}
	favoriteDirs.push_back(make_pair(aDirectory, aName));
	save();
	return true;
}

bool FavoriteManager::removeFavoriteDir(const string& aName) {
	string d(aName);

	if(d[d.length() - 1] != PATH_SEPARATOR)
		d += PATH_SEPARATOR;

	for(StringPairIter j = favoriteDirs.begin(); j != favoriteDirs.end(); ++j) {
		if(Util::stricmp(j->first.c_str(), d.c_str()) == 0) {
			favoriteDirs.erase(j);
			save();
			return true;
		}
	}
	return false;
}

bool FavoriteManager::renameFavoriteDir(const string& aName, const string& anotherName) {

	for(StringPairIter j = favoriteDirs.begin(); j != favoriteDirs.end(); ++j) {
		if(Util::stricmp(j->second.c_str(), aName.c_str()) == 0) {
			j->second = anotherName;
			save();
			return true;
		}
	}
	return false;
}

void FavoriteManager::onHttpFinished() throw() {
	string::size_type i, j;
	string* x;
	string bzlist;

	if(listType == TYPE_BZIP2) {
		try {
			CryptoManager::getInstance()->decodeBZ2((u_int8_t*)downloadBuf.data(), downloadBuf.size(), bzlist);
		} catch(const CryptoException&) {
			bzlist.clear();
		}
		x = &bzlist;
	} else {
		x = &downloadBuf;
	}

	{
		Lock l(cs);
		publicListMatrix[publicListServer].clear();

		if(x->compare(0, 5, "<?xml") == 0 || x->compare(0, 8, "\xEF\xBB\xBF<?xml") == 0) {
			loadXmlList(*x);
		} else {
			i = 0;

			string utfText = Text::acpToUtf8(*x);

			while( (i < utfText.size()) && ((j=utfText.find("\r\n", i)) != string::npos)) {
				StringTokenizer<string> tok(utfText.substr(i, j-i), '|');
				i = j + 2;
				if(tok.getTokens().size() < 4)
					continue;

				StringList::const_iterator k = tok.getTokens().begin();
				const string& name = *k++;
				const string& server = *k++;
				const string& desc = *k++;
				const string& usersOnline = *k++;
				publicListMatrix[publicListServer].push_back(HubEntry(name, server, desc, usersOnline));
			}
		}
	}
	downloadBuf = Util::emptyString;
}

class XmlListLoader : public SimpleXMLReader::CallBack {
public:
	XmlListLoader(HubEntry::List& lst) : publicHubs(lst) { }
	virtual ~XmlListLoader() { }
	virtual void startTag(const string& name, StringPairList& attribs, bool) {
		if(name == "Hub") {
			const string& name = getAttrib(attribs, "Name", 0);
			const string& server = getAttrib(attribs, "Address", 1);
			const string& description = getAttrib(attribs, "Description", 2);
			const string& users = getAttrib(attribs, "Users", 3);
			const string& country = getAttrib(attribs, "Country", 4);
			const string& shared = getAttrib(attribs, "Shared", 5);
			const string& minShare = getAttrib(attribs, "Minshare", 5);
			const string& minSlots = getAttrib(attribs, "Minslots", 5);
			const string& maxHubs = getAttrib(attribs, "Maxhubs", 5);
			const string& maxUsers = getAttrib(attribs, "Maxusers", 5);
			const string& reliability = getAttrib(attribs, "Reliability", 5);
			const string& rating = getAttrib(attribs, "Rating", 5);
			publicHubs.push_back(HubEntry(name, server, description, users, country, shared, minShare, minSlots, maxHubs, maxUsers, reliability, rating));
		}
	}
	virtual void endTag(const string&, const string&) {

	}
private:
	HubEntry::List& publicHubs;
};

void FavoriteManager::loadXmlList(const string& xml) {
	try {
		XmlListLoader loader(publicListMatrix[publicListServer]);
		SimpleXMLReader(&loader).fromXML(xml);
	} catch(const SimpleXMLException&) {

	}
}

void FavoriteManager::save() {
	if(dontSave)
		return;

	Lock l(cs);
	try {
		SimpleXML xml;

		xml.addTag("Favorites");
		xml.stepIn();

		xml.addTag("Hubs");
		xml.stepIn();

		for(FavoriteHubEntry::Iter i = favoriteHubs.begin(); i != favoriteHubs.end(); ++i) {
			xml.addTag("Hub");
			xml.addChildAttrib("Name", (*i)->getName());
			xml.addChildAttrib("Connect", (*i)->getConnect());
			xml.addChildAttrib("Description", (*i)->getDescription());
			xml.addChildAttrib("Nick", (*i)->getNick(false));
			xml.addChildAttrib("Password", (*i)->getPassword());
			xml.addChildAttrib("Server", (*i)->getServer());
			xml.addChildAttrib("UserDescription", (*i)->getUserDescription());
			xml.addChildAttrib("Bottom", Util::toString((*i)->getBottom()));
			xml.addChildAttrib("Top", Util::toString((*i)->getTop()));
			xml.addChildAttrib("Right", Util::toString((*i)->getRight()));
			xml.addChildAttrib("Left", Util::toString((*i)->getLeft()));
		}
		xml.stepOut();
		xml.addTag("Users");
		xml.stepIn();
		for(FavoriteMap::iterator j = users.begin(); j != users.end(); ++j) {
			j->second.getUser()->setFlag(User::SAVE_NICK);
			xml.addTag("User");
			xml.addChildAttrib("LastSeen", j->second.getLastSeen());
			xml.addChildAttrib("GrantSlot", j->second.isSet(FavoriteUser::FLAG_GRANTSLOT));