mirror of
https://github.com/DarkflameUniverse/DarkflameServer.git
synced 2024-11-22 13:37:22 +00:00
278 lines
9.2 KiB
C++
278 lines
9.2 KiB
C++
#include "ConsoleServer.h"
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#include "TransportInterface.h"
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#include "CommandParserInterface.h"
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#include <string.h>
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#include <stdlib.h>
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#define COMMAND_DELINATOR ' '
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#define COMMAND_DELINATOR_TOGGLE '"'
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#include "LinuxStrings.h"
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ConsoleServer::ConsoleServer()
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{
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transport=0;
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password[0]=0;
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}
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ConsoleServer::~ConsoleServer()
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{
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}
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void ConsoleServer::SetTransportProvider(TransportInterface *transportInterface, unsigned short port)
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{
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// Replace the current TransportInterface, stopping the old one, if present, and starting the new one.
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if (transportInterface)
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{
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if (transport)
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{
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RemoveCommandParser(transport->GetCommandParser());
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transport->Stop();
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}
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transport=transportInterface;
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transport->Start(port, true);
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unsigned i;
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for (i=0; i < commandParserList.Size(); i++)
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commandParserList[i]->OnTransportChange(transport);
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// The transport itself might have a command parser - for example password for the RakNet transport
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AddCommandParser(transport->GetCommandParser());
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}
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}
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void ConsoleServer::AddCommandParser(CommandParserInterface *commandParserInterface)
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{
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if (commandParserInterface==0)
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return;
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// Non-duplicate insertion
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unsigned i;
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for (i=0; i < commandParserList.Size(); i++)
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{
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if (commandParserList[i]==commandParserInterface)
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return;
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if (_stricmp(commandParserList[i]->GetName(), commandParserInterface->GetName())==0)
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{
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// Naming conflict between two command parsers
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assert(0);
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return;
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}
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}
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commandParserList.Insert(commandParserInterface);
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if (transport)
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commandParserInterface->OnTransportChange(transport);
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}
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void ConsoleServer::RemoveCommandParser(CommandParserInterface *commandParserInterface)
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{
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if (commandParserInterface==0)
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return;
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// Overwrite the element we are removing from the back of the list and delete the back of the list
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unsigned i;
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for (i=0; i < commandParserList.Size(); i++)
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{
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if (commandParserList[i]==commandParserInterface)
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{
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commandParserList[i]=commandParserList[commandParserList.Size()-1];
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commandParserList.RemoveFromEnd();
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return;
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}
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}
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}
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void ConsoleServer::Update(void)
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{
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unsigned i;
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char *parameterList[20]; // Up to 20 parameters
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unsigned numParameters;
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SystemAddress newOrLostConnectionId;
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Packet *p;
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RegisteredCommand rc;
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p = transport->Receive();
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newOrLostConnectionId=transport->HasNewConnection();
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if (newOrLostConnectionId!=UNASSIGNED_SYSTEM_ADDRESS)
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{
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for (i=0; i < commandParserList.Size(); i++)
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{
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commandParserList[i]->OnNewIncomingConnection(newOrLostConnectionId, transport);
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}
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transport->Send(newOrLostConnectionId, "Connected to remote command console.\r\nType 'help' for help.\r\n");
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ListParsers(newOrLostConnectionId);
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}
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newOrLostConnectionId=transport->HasLostConnection();
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if (newOrLostConnectionId!=UNASSIGNED_SYSTEM_ADDRESS)
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{
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for (i=0; i < commandParserList.Size(); i++)
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commandParserList[i]->OnConnectionLost(newOrLostConnectionId, transport);
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}
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while (p)
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{
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bool commandParsed=false;
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char copy[REMOTE_MAX_TEXT_INPUT];
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memcpy(copy, p->data, p->length);
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copy[p->length]=0;
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CommandParserInterface::ParseConsoleString((char*)p->data, COMMAND_DELINATOR, COMMAND_DELINATOR_TOGGLE, &numParameters, parameterList, 20); // Up to 20 parameters
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if (numParameters==0)
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{
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transport->DeallocatePacket(p);
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p = transport->Receive();
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continue;
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}
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if (_stricmp(*parameterList, "help")==0 && numParameters<=2)
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{
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// Find the parser specified and display help for it
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if (numParameters==1)
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{
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transport->Send(p->systemAddress, "\r\nINSTRUCTIONS:\r\n");
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transport->Send(p->systemAddress, "Enter commands on your keyboard, using spaces to delineate parameters.\r\n");
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transport->Send(p->systemAddress, "You can use quotation marks to toggle space delineation.\r\n");
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transport->Send(p->systemAddress, "You can connect multiple times from the same computer.\r\n");
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transport->Send(p->systemAddress, "You can direct commands to a parser by prefixing the parser name or number.\r\n");
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transport->Send(p->systemAddress, "COMMANDS:\r\n");
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transport->Send(p->systemAddress, "help Show this display.\r\n");
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transport->Send(p->systemAddress, "help <ParserName> Show help on a particular parser.\r\n");
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transport->Send(p->systemAddress, "help <CommandName> Show help on a particular command.\r\n");
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transport->Send(p->systemAddress, "quit Disconnects from the server.\r\n");
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transport->Send(p->systemAddress, "[<ParserName>] <Command> [<Parameters>] Execute a command\r\n");
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transport->Send(p->systemAddress, "[<ParserNumber>] <Command> [<Parameters>] Execute a command\r\n");
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ListParsers(p->systemAddress);
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}
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else // numParameters == 2, including the help tag
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{
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for (i=0; i < commandParserList.Size(); i++)
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{
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if (_stricmp(parameterList[1], commandParserList[i]->GetName())==0)
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{
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commandParsed=true;
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commandParserList[i]->SendHelp(transport, p->systemAddress);
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transport->Send(p->systemAddress, "COMMAND LIST:\r\n");
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commandParserList[i]->SendCommandList(transport, p->systemAddress);
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transport->Send(p->systemAddress, "\r\n");
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break;
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}
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}
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if (commandParsed==false)
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{
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// Try again, for all commands for all parsers.
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RegisteredCommand rc;
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for (i=0; i < commandParserList.Size(); i++)
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{
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if (commandParserList[i]->GetRegisteredCommand(parameterList[1], &rc))
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{
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if (rc.parameterCount==CommandParserInterface::VARIABLE_NUMBER_OF_PARAMETERS)
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transport->Send(p->systemAddress, "(Variable parms): %s %s\r\n", rc.command, rc.commandHelp);
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else
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transport->Send(p->systemAddress, "(%i parms): %s %s\r\n", rc.parameterCount, rc.command, rc.commandHelp);
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commandParsed=true;
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break;
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}
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}
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}
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if (commandParsed==false)
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{
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// Don't know what to do
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transport->Send(p->systemAddress, "Unknown help topic: %s.\r\n", parameterList[1]);
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}
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}
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}
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else if (_stricmp(*parameterList, "quit")==0 && numParameters==1)
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{
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transport->Send(p->systemAddress, "Goodbye!");
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transport->CloseConnection(p->systemAddress);
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}
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else
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{
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bool tryAllParsers=true;
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bool failed=false;
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if (numParameters >=2) // At minimum <CommandParserName> <Command>
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{
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unsigned commandParserIndex=(unsigned)-1;
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// Prefixing with numbers directs to a particular parser
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if (**parameterList>='0' && **parameterList<='9')
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{
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commandParserIndex=atoi(*parameterList); // Use specified parser unless it's an invalid number
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commandParserIndex--; // Subtract 1 since we displayed numbers starting at index+1
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if (commandParserIndex >= commandParserList.Size())
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{
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transport->Send(p->systemAddress, "Invalid index.\r\n");
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failed=true;
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}
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}
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else
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{
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// // Prefixing with the name of a command parser directs to that parser. See if the first word matches a parser
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for (i=0; i < commandParserList.Size(); i++)
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{
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if (_stricmp(parameterList[0], commandParserList[i]->GetName())==0)
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{
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commandParserIndex=i; // Matches parser at index i
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break;
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}
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}
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}
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if (failed==false)
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{
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// -1 means undirected, so otherwise this is directed to a target
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if (commandParserIndex!=(unsigned)-1)
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{
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// Only this parser should use this command
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tryAllParsers=false;
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if (commandParserList[commandParserIndex]->GetRegisteredCommand(parameterList[1], &rc))
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{
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commandParsed=true;
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if (rc.parameterCount==CommandParserInterface::VARIABLE_NUMBER_OF_PARAMETERS || rc.parameterCount==numParameters-2)
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commandParserList[commandParserIndex]->OnCommand(rc.command, numParameters-2, parameterList+2, transport, p->systemAddress, copy);
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else
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transport->Send(p->systemAddress, "Invalid parameter count.\r\n(%i parms): %s %s\r\n", rc.parameterCount, rc.command, rc.commandHelp);
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}
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}
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}
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}
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if (failed == false && tryAllParsers)
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{
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for (i=0; i < commandParserList.Size(); i++)
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{
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// Undirected command. Try all the parsers to see if they understand the command
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// Pass the 1nd element as the command, and the remainder as the parameter list
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if (commandParserList[i]->GetRegisteredCommand(parameterList[0], &rc))
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{
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commandParsed=true;
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if (rc.parameterCount==CommandParserInterface::VARIABLE_NUMBER_OF_PARAMETERS || rc.parameterCount==numParameters-1)
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commandParserList[i]->OnCommand(rc.command, numParameters-1, parameterList+1, transport, p->systemAddress, copy);
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else
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transport->Send(p->systemAddress, "Invalid parameter count.\r\n(%i parms): %s %s\r\n", rc.parameterCount, rc.command, rc.commandHelp);
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}
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}
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}
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if (commandParsed==false && commandParserList.Size() > 0)
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{
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transport->Send(p->systemAddress, "Unknown command: Type 'help' for help.\r\n");
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}
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}
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transport->DeallocatePacket(p);
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p = transport->Receive();
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}
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}
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void ConsoleServer::ListParsers(SystemAddress systemAddress)
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{
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transport->Send(systemAddress,"INSTALLED PARSERS:\r\n");
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unsigned i;
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for (i=0; i < commandParserList.Size(); i++)
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{
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transport->Send(systemAddress, "%i. %s\r\n", i+1, commandParserList[i]->GetName());
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}
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}
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