C++ AString::push_back方法代码示例

AString cMojangAPI::MakeUUIDDashed(const AString & a_UUID)
{
	// Note: we only check the string's length, not the actual content
	switch (a_UUID.size())
	{
		case 36:
		{
			// Already is a dashed UUID, only lowercase
			return StrToLower(a_UUID);
		}
		
		case 32:
		{
			// Insert dashes at the proper positions:
			AString res;
			res.reserve(36);
			res.append(a_UUID, 0, 8);
			res.push_back('-');
			res.append(a_UUID, 8, 4);
			res.push_back('-');
			res.append(a_UUID, 12, 4);
			res.push_back('-');
			res.append(a_UUID, 16, 4);
			res.push_back('-');
			res.append(a_UUID, 20, 12);
			return StrToLower(res);
		}
	}
	LOGWARNING("%s: Not an UUID: \"%s\".", __FUNCTION__, a_UUID.c_str());
	return "";
}

AString cProtocol125::GetEntityMetaData(const cEntity & a_Entity)
{
	// We should send all the metadata here
	AString MetaData;
	// Common metadata (index 0, byte):
	MetaData.push_back(0);
	MetaData.push_back(GetEntityMetadataFlags(a_Entity));
	
	// TODO: Add more entity-specific metadata
	
	MetaData.push_back(0x7f);  // End metadata
	return MetaData;
}

AString cWebAdmin::GetHTMLEscapedString(const AString & a_Input)
{
	AString dst;
	dst.reserve(a_Input.length());

	// Loop over input and substitute HTML characters for their alternatives:
	size_t len = a_Input.length();
	for (size_t i = 0; i < len; i++)
	{
		switch (a_Input[i])
		{
			case '&':  dst.append("&amp;");  break;
			case '\'': dst.append("&apos;"); break;
			case '"':  dst.append("&quot;"); break;
			case '<':  dst.append("&lt;");   break;
			case '>':  dst.append("&gt;");   break;
			default:
			{
				dst.push_back(a_Input[i]);
				break;
			}
		}  // switch (a_Input[i])
	}  // for i - a_Input[]

	return dst;
}

AStringVector cFile::GetFolderContents(const AString & a_Folder)
{
	AStringVector AllFiles;

	#ifdef _WIN32

		// If the folder name doesn't contain the terminating slash / backslash, add it:
		AString FileFilter = a_Folder;
		if (
			!FileFilter.empty() &&
			(FileFilter[FileFilter.length() - 1] != '\\') &&
			(FileFilter[FileFilter.length() - 1] != '/')
		)
		{
			FileFilter.push_back('\\');
		}

		// Find all files / folders:
		FileFilter.append("*.*");
		HANDLE hFind;
		WIN32_FIND_DATAA FindFileData;
		if ((hFind = FindFirstFileA(FileFilter.c_str(), &FindFileData)) != INVALID_HANDLE_VALUE)
		{
			do
			{
				AllFiles.push_back(FindFileData.cFileName);
			} while (FindNextFileA(hFind, &FindFileData));
			FindClose(hFind);
		}

	#else  // _WIN32

		DIR * dp;
		AString Folder = a_Folder;
		if (Folder.empty())
		{
			Folder = ".";
		}
		if ((dp = opendir(Folder.c_str())) == nullptr)
		{
			LOGERROR("Error (%i) opening directory \"%s\"\n", errno, Folder.c_str());
		}
		else
		{
			struct dirent *dirp;
			while ((dirp = readdir(dp)) != nullptr)
			{
				AllFiles.push_back(dirp->d_name);
			}
			closedir(dp);
		}

	#endif  // else _WIN32

	return AllFiles;
}

AString cWebPlugin::SafeString( const AString & a_String )
{
	AString RetVal;
	for( unsigned int i = 0; i < a_String.size(); ++i )
	{
		char c = a_String[i];
		if( c == ' ' ) 
		{
			c = '_';
		}
		RetVal.push_back( c );
	}
	return RetVal;
}

AString cWebPlugin::SafeString(const AString & a_String)
{
	AString RetVal;
	auto len = a_String.size();
	RetVal.reserve(len);
	for (size_t i = 0; i < len; ++i)
	{
		char c = a_String[i];
		if (c == ' ')
		{
			c = '_';
		}
		RetVal.push_back(c);
	}
	return RetVal;
}

void cForgeHandshake::BeginForgeHandshake(const AString & a_Name, const cUUID & a_UUID, const Json::Value & a_Properties)
{
	ASSERT(m_IsForgeClient);

	m_Name = a_Name;
	m_UUID = a_UUID;
	m_Properties = a_Properties;

	static const std::array<AString, 5> Channels{{ "FML|HS", "FML", "FML|MP", "FML", "FORGE" }};
	AString ChannelsString;
	for (auto & Channel: Channels)
	{
		ChannelsString.append(Channel);
		ChannelsString.push_back('\0');
	}

	m_Client->SendPluginMessage("REGISTER", ChannelsString);
	SendServerHello();
}

bool cSocketInputStream::GetLineInternal(AString & a_OutLine)
{
	a_OutLine.clear();
	for (;;)
	{
		char c;
		if (recv(m_Socket, &c, 1, 0) != 1)
		{
			return false;
		}
		if (c == 10)
		{
			return true;
		}
		else if (c != 13)
		{
			a_OutLine.push_back(c);
		}
	}
}

void cProtocolRecognizer::SendLengthlessServerPing(void)
{
	AString Reply;
	cServer * Server = cRoot::Get()->GetServer();
	switch (cRoot::Get()->GetPrimaryServerVersion())
	{
		case PROTO_VERSION_1_2_5:
		case PROTO_VERSION_1_3_2:
		{
			// http://wiki.vg/wiki/index.php?title=Protocol&oldid=3099#Server_List_Ping_.280xFE.29
			Printf(Reply, "%s%s%i%s%i", 
				Server->GetDescription().c_str(),
				cChatColor::Delimiter.c_str(),
				Server->GetNumPlayers(),
				cChatColor::Delimiter.c_str(),
				Server->GetMaxPlayers()
			);
			break;
		}
		
		case PROTO_VERSION_1_4_2:
		case PROTO_VERSION_1_4_4:
		case PROTO_VERSION_1_4_6:
		case PROTO_VERSION_1_5_0:
		case PROTO_VERSION_1_5_2:
		case PROTO_VERSION_1_6_1:
		case PROTO_VERSION_1_6_2:
		case PROTO_VERSION_1_6_3:
		case PROTO_VERSION_1_6_4:
		{
			// The server list ping now has 1 more byte of "magic". Mojang just loves to complicate stuff.
			// http://wiki.vg/wiki/index.php?title=Protocol&oldid=3101#Server_List_Ping_.280xFE.29
			// _X 2012_10_31: I know that this needn't eat the byte, since it still may be in transit.
			//    Who cares? We're disconnecting anyway.
			m_Buffer.ResetRead();
			if (m_Buffer.CanReadBytes(2))
			{
				Byte val;
				m_Buffer.ReadByte(val);  // Packet type - Serverlist ping
				m_Buffer.ReadByte(val);  // 0x01 magic value
				ASSERT(val == 0x01);
			}
			
			// http://wiki.vg/wiki/index.php?title=Server_List_Ping&oldid=3100
			AString NumPlayers;
			Printf(NumPlayers, "%d", Server->GetNumPlayers());
			AString MaxPlayers;
			Printf(MaxPlayers, "%d", Server->GetMaxPlayers());
			
			AString ProtocolVersionNum;
			Printf(ProtocolVersionNum, "%d", cRoot::Get()->GetPrimaryServerVersion());
			AString ProtocolVersionTxt(GetVersionTextFromInt(cRoot::Get()->GetPrimaryServerVersion()));

			// Cannot use Printf() because of in-string NUL bytes.
			Reply = cChatColor::Delimiter;
			Reply.append("1");
			Reply.push_back(0);
			Reply.append(ProtocolVersionNum);
			Reply.push_back(0);
			Reply.append(ProtocolVersionTxt);
			Reply.push_back(0);
			Reply.append(Server->GetDescription());
			Reply.push_back(0);
			Reply.append(NumPlayers);
			Reply.push_back(0);
			Reply.append(MaxPlayers);
			break;
		}
	}  // switch (m_PrimaryServerVersion)
	m_Client->Kick(Reply);
}

void cForgeHandshake::HandleHandshakeAck(cClientHandle * a_Client, const char * a_Data, size_t a_Size)
{
	if (a_Size != 2)
	{
		SetError(Printf("Unexpected HandshakeAck packet length: %zu", a_Size));
		return;
	}

	auto Phase = a_Data[1];
	LOGD("Received client HandshakeAck with phase = %d", Phase);

	switch (Phase)
	{
		case ClientPhase::WAITINGSERVERDATA:
		{
			cByteBuffer Buf(1024);
			Buf.WriteBEInt8(Discriminator::RegistryData);

			// TODO: send real registry data
			bool HasMore = false;
			AString RegistryName = "potions";
			UInt32 NumIDs = 0;
			UInt32 NumSubstitutions = 0;
			UInt32 NumDummies = 0;

			Buf.WriteBool(HasMore);
			Buf.WriteVarUTF8String(RegistryName);
			Buf.WriteVarInt32(NumIDs);
			Buf.WriteVarInt32(NumSubstitutions);
			Buf.WriteVarInt32(NumDummies);

			AString RegistryData;
			Buf.ReadAll(RegistryData);
			m_Client->SendPluginMessage("FML|HS", RegistryData);
			break;
		}

		case ClientPhase::WAITINGSERVERCOMPLETE:
		{
			LOGD("Client finished receiving registry data; acknowledging");

			AString Ack;
			Ack.push_back(Discriminator::HandshakeAck);
			Ack.push_back(ServerPhase::WAITINGCACK);
			m_Client->SendPluginMessage("FML|HS", Ack);
			break;
		}

		case ClientPhase::PENDINGCOMPLETE:
		{
			LOGD("Client is pending completion; sending complete ack");

			AString Ack;
			Ack.push_back(Discriminator::HandshakeAck);
			Ack.push_back(ServerPhase::COMPLETE);
			m_Client->SendPluginMessage("FML|HS", Ack);

			break;
		}

		case ClientPhase::COMPLETE:
		{
			// Now finish logging in
			m_Client->FinishAuthenticate(m_Name, m_UUID, m_Properties);
			break;
		}

		default:
		{
			SetError(Printf("Received unknown phase in Forge handshake acknowledgement: %d", Phase));
			break;
		}
	}
}