C++ AString::empty方法代码示例

cBiomeGen * cBiomeGen::CreateBiomeGen(cIniFile & a_IniFile, int a_Seed, bool & a_CacheOffByDefault)
{
	AString BiomeGenName = a_IniFile.GetValueSet("Generator", "BiomeGen", "");
	if (BiomeGenName.empty())
	{
		LOGWARN("[Generator] BiomeGen value not set in world.ini, using \"MultiStepMap\".");
		BiomeGenName = "MultiStepMap";
	}
	
	cBiomeGen * res = NULL;
	a_CacheOffByDefault = false;
	if (NoCaseCompare(BiomeGenName, "constant") == 0)
	{
		res = new cBioGenConstant;
		a_CacheOffByDefault = true;  // we're generating faster than a cache would retrieve data :)
	}
	else if (NoCaseCompare(BiomeGenName, "checkerboard") == 0)
	{
		res = new cBioGenCheckerboard;
		a_CacheOffByDefault = true;  // we're (probably) generating faster than a cache would retrieve data
	}
	else if (NoCaseCompare(BiomeGenName, "voronoi") == 0)
	{
		res = new cBioGenVoronoi(a_Seed);
	}
	else if (NoCaseCompare(BiomeGenName, "distortedvoronoi") == 0)
	{
		res = new cBioGenDistortedVoronoi(a_Seed);
	}
	else if (NoCaseCompare(BiomeGenName, "twolevel") == 0)
	{
		res = new cBioGenTwoLevel(a_Seed);
	}
	else
	{
		if (NoCaseCompare(BiomeGenName, "multistepmap") != 0)
		{
			LOGWARNING("Unknown BiomeGen \"%s\", using \"MultiStepMap\" instead.", BiomeGenName.c_str());
		}
		res = new cBioGenMultiStepMap(a_Seed);

		/*
		// Performance-testing:
		LOGINFO("Measuring performance of cBioGenMultiStepMap...");
		clock_t BeginTick = clock();
		for (int x = 0; x < 5000; x++)
		{
			cChunkDef::BiomeMap Biomes;
			res->GenBiomes(x * 5, x * 5, Biomes);
		}
		clock_t Duration = clock() - BeginTick;
		LOGINFO("cBioGenMultiStepMap for 5000 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
		//*/
	}
	res->InitializeBiomeGen(a_IniFile);
	
	return res;
}

		Air::U1 Converter::SplitFilePath( const AString& str, AString* strPath /*= NULL*/, AString* strFileName /*= NULL*/, AString* strExe /*= NULL*/ )
		{
			if(str.empty())
				return	false;
			U32	uiStrSize	=	str.size();
			S32	uiPoint	=	uiStrSize;
			S32	uiSlash	=	-1;


			for(S32 i=uiStrSize-1;i>-1;i--){
				if(str[i]	==	'.'	&&	uiPoint	==	uiStrSize){
					uiPoint	=	i;
				}
				if(	str[i]	==	'/'	||
					str[i]	==	'\\'){
					uiSlash	=	i;
					break;
				}
			}

			if(	uiPoint	!=	uiStrSize	&&
				strExe	!=	NULL)
			{
				if(uiPoint!=uiStrSize-1)
					*strExe	=	&str[uiPoint+1];
			}

			if(	uiSlash	!=	-1		&&
				strPath	!=	NULL)
			{
				if(uiSlash<uiStrSize){
					strPath->resize(uiSlash+1);
					memcpy(&((*strPath)[0]),&str[0],uiSlash+1);
				}else{
					*strPath	=	str;
				}
			}

			if(strFileName!=NULL){
				U32	uiFileNameSize	=	uiPoint;
				U32	uiFileNameStart	=	0;
				if(uiPoint==uiStrSize)
					uiFileNameSize--;

				if(uiSlash<uiStrSize){
					if(uiSlash!=-1){
						uiFileNameSize	-=		uiSlash+1;
						uiFileNameStart	=		uiSlash+1;
					}

					strFileName->resize(uiFileNameSize);
					memcpy(&((*strFileName)[0]),&str[uiFileNameStart],uiFileNameSize);
				}
			}
			return	true;
		}

bool ARTSPConnection::receiveRTSPRequest() {
    AString requestLine;
	LOGI(LOG_TAG,"start receiveLine ......\n");
    if (!receiveLine(&requestLine)) {
        return false;
    }
//	LOGI(LOG_TAG,"receiveLine OK\n");
    sp<AMessage>  request = new AMessage(kWhatRequest,mhandlerID);
	request->setInt32("SessionID",mSessionID);
	LOGI(LOG_TAG,"request->setInt32 SessionID %d\n",mSessionID);
    LOGI(LOG_TAG,"request: %s\n", requestLine.c_str());

    ssize_t space1 = requestLine.find(" ");//寻找空格
    if (space1 < 0) {
        return false;
    }
    ssize_t space2 = requestLine.find(" ", space1 + 1);
    if (space2 < 0) {
        return false;
    }

    AString Method(requestLine.c_str(), space1);
	request->setString("Method",Method.c_str());
	AString URI(requestLine,space1+1,space2-space1-1);
	request->setString("URI",URI.c_str());
    AString line;
    for (;;) {
        if (!receiveLine(&line)) {
            break;
        }

        if (line.empty()) {
            break;
        }

        ssize_t colonPos = line.find(":");
        if (colonPos < 0) {
            // Malformed header line.
            return false;
        }

        AString key(line, 0, colonPos);
        key.trim();
       // key.tolower();

        line.erase(0, colonPos + 1);
        line.trim();
		
        LOGI(LOG_TAG,"line: %s:%s\n", key.c_str(),line.c_str());

	    request->setString(key.c_str(),line.c_str());	
    }
	LOGI(LOG_TAG,"Post the request to handler\n");
    request->post();//将请求消息发送给uplayer 处理
	return OK;
}

void cPluginManager::ReloadPluginsNow(cIniFile & a_SettingsIni)
{
	LOG("-- Loading Plugins --");
	m_bReloadPlugins = false;
	UnloadPluginsNow();

	FindPlugins();

	cServer::BindBuiltInConsoleCommands();

	// Check if the Plugins section exists.
	int KeyNum = a_SettingsIni.FindKey("Plugins");

	// If it does, how many plugins are there?
	int NumPlugins = ((KeyNum != -1) ? (a_SettingsIni.GetNumValues(KeyNum)) : 0);

	if (KeyNum == -1)
	{
		InsertDefaultPlugins(a_SettingsIni);
	}
	else if (NumPlugins > 0)
	{
		for (int i = 0; i < NumPlugins; i++)
		{
			AString ValueName = a_SettingsIni.GetValueName(KeyNum, i);
			if (ValueName.compare("Plugin") == 0)
			{
				AString PluginFile = a_SettingsIni.GetValue(KeyNum, i);
				if (!PluginFile.empty())
				{
					if (m_Plugins.find(PluginFile) != m_Plugins.end())
					{
						LoadPlugin(PluginFile);
					}
				}
			}
		}
	}

	size_t NumLoadedPlugins = GetNumPlugins();
	if (NumLoadedPlugins == 0)
	{
		LOG("-- No Plugins Loaded --");
	}
	else if (NumLoadedPlugins > 1)
	{
		LOG("-- Loaded %i Plugins --", (int)NumLoadedPlugins);
	}
	else
	{
		LOG("-- Loaded 1 Plugin --");
	}
	CallHookPluginsLoaded();
}

void cFurnaceRecipe::ReloadRecipes(void)
{
	ClearRecipes();
	LOGD("Loading furnace recipes...");

	std::ifstream f(FURNACE_RECIPE_FILE, std::ios::in);
	if (!f.good())
	{
		LOG("Could not open the furnace recipes file \"%s\". No furnace recipes are available.", FURNACE_RECIPE_FILE);
		return;
	}

	unsigned int LineNum = 0;
	AString ParsingLine;

	while (std::getline(f, ParsingLine))
	{
		LineNum++;
		if (ParsingLine.empty())
		{
			continue;
		}

		// Remove comments from the line:
		size_t FirstCommentSymbol = ParsingLine.find('#');
		if ((FirstCommentSymbol != AString::npos) && (FirstCommentSymbol != 0))
		{
			ParsingLine.erase(ParsingLine.begin() + static_cast<const long>(FirstCommentSymbol), ParsingLine.end());
		}

		switch (ParsingLine[0])
		{
			case '#':
			{
				// Comment
				break;
			}

			case '!':
			{
				AddFuelFromLine(ParsingLine, LineNum);
				break;
			}

			default:
			{
				AddRecipeFromLine(ParsingLine, LineNum);
				break;
			}
		}  // switch (ParsingLine[0])
	}  // while (getline(ParsingLine))

	LOG("Loaded " SIZE_T_FMT " furnace recipes and " SIZE_T_FMT " fuels", m_pState->Recipes.size(), m_pState->Fuel.size());
}

void cPrefabPiecePool::ApplyBaseMetadataCubesetVer1(
	const AString & a_FileName,
	bool a_LogWarnings
)
{
	// Set the metadata values to defaults:
	m_MinDensity = 100;
	m_MaxDensity = 100;
	m_VillageRoadBlockType = E_BLOCK_GRAVEL;
	m_VillageRoadBlockMeta = 0;
	m_VillageWaterRoadBlockType = E_BLOCK_PLANKS;
	m_VillageWaterRoadBlockMeta = 0;

	// Read the metadata values:
	m_IntendedUse = GetMetadata("IntendedUse");
	GetStringMapInteger(m_Metadata, "MaxDensity",                m_MaxDensity);
	GetStringMapInteger(m_Metadata, "MinDensity",                m_MinDensity);
	GetStringMapInteger(m_Metadata, "VillageRoadBlockType",      m_VillageRoadBlockType);
	GetStringMapInteger(m_Metadata, "VillageRoadBlockMeta",      m_VillageRoadBlockMeta);
	GetStringMapInteger(m_Metadata, "VillageWaterRoadBlockType", m_VillageWaterRoadBlockType);
	GetStringMapInteger(m_Metadata, "VillageWaterRoadBlockMeta", m_VillageWaterRoadBlockMeta);

	// Read the allowed biomes:
	AString allowedBiomes = GetMetadata("AllowedBiomes");
	if (allowedBiomes.empty())
	{
		// All biomes are allowed:
		for (int b = biFirstBiome; b <= biMaxBiome; b++)
		{
			m_AllowedBiomes.insert(static_cast<EMCSBiome>(b));
		}
		for (int b = biFirstVariantBiome; b <= biMaxVariantBiome; b++)
		{
			m_AllowedBiomes.insert(static_cast<EMCSBiome>(b));
		}
	}
	else
	{
		auto biomes = StringSplitAndTrim(allowedBiomes, ",");
		for (const auto & biome: biomes)
		{
			EMCSBiome b = StringToBiome(biome);
			if (b == biInvalidBiome)
			{
				CONDWARNING(a_LogWarnings, "Invalid biome (\"%s\") specified in AllowedBiomes in cubeset file %s. Skipping the biome.",
					biome.c_str(), a_FileName.c_str()
				);
				continue;
			}
			m_AllowedBiomes.insert(b);
		}
	}
}

		virtual bool Command(const AString & a_Command, const cPlugin * a_Plugin, const AString & a_Permission, const AString & a_HelpString) override
		{
			if (!a_HelpString.empty())
			{
				m_Commands.push_back(AStringPair(a_Command, a_HelpString));
				if (m_MaxLen < a_Command.length())
				{
					m_MaxLen = a_Command.length();
				}
			}
			return false;
		}

cPluginManager::CommandResult cPluginManager::HandleCommand(cPlayer & a_Player, const AString & a_Command, bool a_ShouldCheckPermissions)
{
	AStringVector Split(StringSplit(a_Command, " "));
	if (Split.empty())
	{
		return crUnknownCommand;
	}

	CommandMap::iterator cmd = m_Commands.find(Split[0]);
	if (cmd == m_Commands.end())
	{
		// Command not found
		// If it started with a slash, ask the plugins if they still want to handle it:
		if (!a_Command.empty() && (a_Command[0] == '/'))
		{
			CommandResult Result = crUnknownCommand;
			CallHookExecuteCommand(&a_Player, Split, a_Command, Result);
			return Result;
		}
		return crUnknownCommand;
	}

	// Ask plugins first if a command is okay to execute the command:
	CommandResult Result = crBlocked;
	if (CallHookExecuteCommand(&a_Player, Split, a_Command, Result))
	{
		if (Result == crBlocked)
		{
			LOGINFO("Player %s tried executing command \"%s\" that was stopped by the HOOK_EXECUTE_COMMAND hook", a_Player.GetName().c_str(), Split[0].c_str());
		}
		return Result;
	}

	if (
		a_ShouldCheckPermissions &&
		!cmd->second.m_Permission.empty() &&
		!a_Player.HasPermission(cmd->second.m_Permission)
	)
	{
		LOGINFO("Player %s tried to execute forbidden command: \"%s\"", a_Player.GetName().c_str(), Split[0].c_str());
		return crNoPermission;
	}

	ASSERT(cmd->second.m_Handler != nullptr);

	if (!cmd->second.m_Handler->ExecuteCommand(Split, &a_Player, a_Command, nullptr))
	{
		return crError;
	}

	return crExecuted;
}

bool cStatSerializer::Load(void)
{
	AString Data = cFile::ReadWholeFile(FILE_IO_PREFIX + m_Path);
	if (Data.empty())
	{
		Data = cFile::ReadWholeFile(FILE_IO_PREFIX + m_LegacyPath);
		if (Data.empty())
		{
			return false;
		}
	}

	Json::Value Root;
	Json::Reader Reader;

	if (Reader.parse(Data, Root, false))
	{
		return LoadStatFromJSON(Root);
	}

	return false;
}

bool cHTTPServer::Initialize(void)
{
	// Read the HTTPS cert + key:
	AString CertFile = cFile::ReadWholeFile("webadmin/httpscert.crt");
	AString KeyFile  = cFile::ReadWholeFile("webadmin/httpskey.pem");
	if (!CertFile.empty() && !KeyFile.empty())
	{
		m_Cert.reset(new cX509Cert);
		int res = m_Cert->Parse(CertFile.data(), CertFile.size());
		if (res == 0)
		{
			m_CertPrivKey.reset(new cCryptoKey);
			int res2 = m_CertPrivKey->ParsePrivate(KeyFile.data(), KeyFile.size(), "");
			if (res2 != 0)
			{
				// Reading the private key failed, reset the cert:
				LOGWARNING("WebServer: Cannot read HTTPS certificate private key: -0x%x", -res2);
				m_Cert.reset();
			}
		}
		else
		{
			LOGWARNING("WebServer: Cannot read HTTPS certificate: -0x%x", -res);
		}
	}

	// Notify the admin about the HTTPS / HTTP status
	if (m_Cert.get() == nullptr)
	{
		LOGWARNING("WebServer: The server will run in unsecured HTTP mode.");
		LOGINFO("Put a valid HTTPS certificate in file 'webadmin/httpscert.crt' and its corresponding private key to 'webadmin/httpskey.pem' (without any password) to enable HTTPS support");
	}
	else
	{
		LOGINFO("WebServer: The server will run in secure HTTPS mode.");
	}
	return true;
}

void cPluginManager::ReloadPluginsNow(cIniFile & a_SettingsIni)
{
	LOG("-- Loading Plugins --");
	m_bReloadPlugins = false;
	UnloadPluginsNow();

	FindPlugins();

	cServer::BindBuiltInConsoleCommands();
	
	unsigned int KeyNum = a_SettingsIni.FindKey("Plugins");
	unsigned int NumPlugins = ((KeyNum != -1) ? (a_SettingsIni.GetNumValues(KeyNum)) : 0);
	if (KeyNum == -1)
	{
		InsertDefaultPlugins(a_SettingsIni);
	}
	else if (NumPlugins > 0)
	{
		for(unsigned int i = 0; i < NumPlugins; i++)
		{
			AString ValueName = a_SettingsIni.GetValueName(KeyNum, i);
			if (ValueName.compare("Plugin") == 0)
			{
				AString PluginFile = a_SettingsIni.GetValue(KeyNum, i);
				if (!PluginFile.empty())
				{
					if (m_Plugins.find(PluginFile) != m_Plugins.end())
					{
						LoadPlugin( PluginFile );
					}
				}
			}
		}
	}

	if (GetNumPlugins() == 0)
	{
		LOG("-- No Plugins Loaded --");
	}
	else if (GetNumPlugins() > 1)
	{
		LOG("-- Loaded %i Plugins --", GetNumPlugins());
	}
	else
	{
		LOG("-- Loaded 1 Plugin --");
	}
}

AString GetOSErrorString( int a_ErrNo)
{
	char buffer[ 1024 ];
	AString Out;

	#ifdef _WIN32

	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, a_ErrNo, 0, buffer, ARRAYCOUNT(buffer), NULL);
	Printf(Out, "%d: %s", a_ErrNo, buffer);
	if (!Out.empty() && (Out[Out.length() - 1] == '\n'))
	{
		Out.erase(Out.length() - 2);
	}
	return Out;
	
	#else  // _WIN32
	
	// According to http://linux.die.net/man/3/strerror_r there are two versions of strerror_r():
	
	#if !defined(__APPLE__) && ( _GNU_SOURCE) && !defined(ANDROID_NDK)  // GNU version of strerror_r()
	
	char * res = strerror_r( errno, buffer, ARRAYCOUNT(buffer));
	if (res != NULL)
	{
		Printf(Out, "%d: %s", a_ErrNo, res);
		return Out;
	}
	
	#else  // XSI version of strerror_r():
	
	int res = strerror_r( errno, buffer, ARRAYCOUNT(buffer));
	if (res == 0)
	{
		Printf(Out, "%d: %s", a_ErrNo, buffer);
		return Out;
	}
	
	#endif  // strerror_r() version
	
	else
	{
		Printf(Out, "Error %d while getting error string for error #%d!", errno, a_ErrNo);
		return Out;
	}
	
	#endif  // else _WIN32
}

int cCryptoKey::ParsePrivate(const void * a_Data, size_t a_NumBytes, const AString & a_Password)
{
	ASSERT(!IsValid());  // Cannot parse a second key
	
	if (a_Password.empty())
	{
		return pk_parse_key(&m_Pk, (const unsigned char *)a_Data, a_NumBytes, NULL, 0);
	}
	else
	{
		return pk_parse_key(
			&m_Pk,
			(const unsigned char *)a_Data, a_NumBytes,
			(const unsigned char *)a_Password.c_str(), a_Password.size()
		);
	}
}

void cCompositeChat::AddStyle(AString & a_Style, const AString & a_AddStyle)
{
	if (a_AddStyle.empty())
	{
		return;
	}
	if (a_AddStyle[0] == '@')
	{
		size_t idx = a_Style.find('@');
		if ((idx != AString::npos) && (idx != a_Style.length()))
		{
			a_Style.erase(idx, 2);
		}
		a_Style.append(a_AddStyle);
		return;
	}
	a_Style.append(a_AddStyle);
}

bool cSchematicFileSerializer::SaveToSchematicString(const cBlockArea & a_BlockArea, AString & a_Out)
{
	// Serialize into NBT data:
	AString NBT = SaveToSchematicNBT(a_BlockArea);
	if (NBT.empty())
	{
		LOG("%s: Cannot serialize the area into an NBT representation.", __FUNCTION__);
		return false;
	}

	// Gzip the data:
	int res = CompressStringGZIP(NBT.data(), NBT.size(), a_Out);
	if (res != Z_OK)
	{
		LOG("%s: Cannot Gzip the area data NBT representation: %d", __FUNCTION__, res);
		return false;
	}
	return true;
}