65 lines
1.5 KiB
JavaScript
65 lines
1.5 KiB
JavaScript
'use strict';
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/*
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command management - allow for non-ops to execute approved javascript code.
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*/
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var _commands = {},
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_cmdInterceptors = [];
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/*
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execute a JSP command.
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*/
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var executeCmd = function( args, player ) {
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var name,
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cmd,
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intercepted,
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result = null;
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if ( args.length === 0 ) {
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throw new Error('Usage: jsp command-name command-parameters');
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}
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name = args[0];
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cmd = _commands[name];
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if ( typeof cmd === 'undefined' ) {
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// it's not a global command - pass it on to interceptors
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intercepted = false;
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for ( var i = 0; i < _cmdInterceptors.length; i++ ) {
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if ( _cmdInterceptors[i]( args, player ) )
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intercepted = true;
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}
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if ( !intercepted ) {
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console.warn( 'Command %s is not recognised', name );
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}
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}else{
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try {
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result = cmd.callback( args.slice(1), player );
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} catch ( e ) {
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console.error( 'Error while trying to execute command: ' + JSON.stringify( args ) );
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throw e;
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}
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}
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return result;
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};
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/*
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define a new JSP command.
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*/
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var defineCmd = function( name, func, options, intercepts ) {
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if ( typeof name == 'function'){
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intercepts = options;
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options = func;
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func = name;
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name = func.name;
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}
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if ( typeof options == 'undefined' ) {
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options = [];
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}
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_commands[name] = { callback: func, options: options };
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if ( intercepts ) {
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_cmdInterceptors.push(func);
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}
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return func;
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};
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exports.command = defineCmd;
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exports.commands = _commands;
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exports.exec = executeCmd;
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