/*******************************************************************************
    * Copyright (c) 2007, 2014 Massimiliano Ziccardi
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *******************************************************************************/
  package it.jnrpe.server;
  
  import java.io.File;
  import java.util.Collection;
  import java.util.List;
  
  import org.apache.commons.configuration.XMLConfiguration;
  import org.apache.commons.lang.StringUtils;
  
  /**
   * This class represent the parsed XML configuration file.
   * 
   * @author Massimiliano Ziccardi
   */
  class XmlJNRPEConfiguration extends JNRPEConfiguration {
  
  	@Override
  	public void load(final File confFile) throws ConfigurationException {
  		// Parse an ini file
  		ServerSection serverConf = getServerSection();
  		CommandsSection commandSection = getCommandSection();
  		try {
  			XMLConfiguration confParser = new XMLConfiguration(confFile);
  
  			List<Object> vBindAddresses = confParser
  					.getList("server.bind[@address]");
  			int iBindListSize = vBindAddresses.size();
  
  			for (int i = 0; i < iBindListSize; i++) {
  				String sAddress = confParser.getString("server.bind(" + i
  						+ ")[@address]");
  				String useSSL = confParser.getString("server.bind(" + i
  						+ ")[@SSL]");
  				if (useSSL == null) {
  					useSSL = "false";
  				}
  
  				serverConf.addBindAddress(sAddress,
  						useSSL.equalsIgnoreCase("true"));
  			}
  
  			String sAcceptParams = confParser.getString(
  					"server[@accept-params]", "true");
  
  			serverConf.setAcceptParams(sAcceptParams.equalsIgnoreCase("true")
  					|| sAcceptParams.equalsIgnoreCase("yes"));
  
  			serverConf.setPluginPath(confParser.getString(
  					"server.plugin[@path]", "."));
  
  			serverConf.setBackLogSize(confParser.getInt(
  					"server[@backlog-size]", ServerSection.DEFAULT_BACKLOG));
  
  			// TODO : move this to publicly accessible constants
  			serverConf.setReadTimeout(confParser.getInteger(
  					"server[@read-timeout]", 10));
  			// TODO : move this to publicly accessible constants
  			serverConf.setWriteTimeout(confParser.getInteger(
  					"server[@write-timeout]", 60));
  
  			List<Object> vAllowedAddresses = confParser
  					.getList("server.allow[@ip]");
  			if (vAllowedAddresses != null) {
  				for (Object address : vAllowedAddresses) {
  					serverConf.addAllowedAddress((String) address);
  				}
  			}
  
  			// Get the commands count ( searching for a better way...)
  			// int iCommandsCount =
  			Object obj = confParser.getProperty("commands.command[@name]");
  
  			int iCount = 0;
  
  			if (obj != null) {
  				if (obj instanceof List) {
  					iCount = ((List) obj).size();
  				} else {
  					iCount = 1;
  				}
  			}
  
  			// Loop through configured commands
  			for (int i = 0; i < iCount; i++) {
 				String sCommandName = (String) confParser
 						.getProperty("commands.command(" + i + ")[@name]");
 				String sPluginName = (String) confParser
 						.getProperty("commands.command(" + i
 								+ ")[@plugin_name]");
 				String sWholeCommandLine = (String) confParser
 						.getProperty("commands.command(" + i + ")[@params]");
 				if (sWholeCommandLine == null) {
 					sWholeCommandLine = "";
 				} else {
 					sWholeCommandLine += " ";
 				}
 
 				// Loop through command arguments...
 
 				Object argsObj = confParser.getProperty("commands.command(" + i
 						+ ").arg[@name]");
 				int iArgsCount = 0;
 				if (argsObj != null) {
 					if (argsObj instanceof List) {
 						iArgsCount = ((List) argsObj).size();
 					} else {
 						iArgsCount = 1;
 					}
 				}
 
 				StringBuffer commandLineBuffer = new StringBuffer(
 						sWholeCommandLine);
 
 				for (int j = 0; j < iArgsCount; j++) {
 					String sArgName = (String) confParser
 							.getProperty("commands.command(" + i + ").arg(" + j
 									+ ")[@name]");
 
 					Object value = confParser.getProperty("commands.command("
 							+ i + ").arg(" + j + ")[@value]");
 
 					String sArgValue = null;
 					if (value instanceof String) {
 						sArgValue = (String) value;
 					} else if (value instanceof Collection) {
 						sArgValue = StringUtils.join((Collection) value,
 								confParser.getListDelimiter());
 					}
 
 					if (sArgName.length() > 1) {
 						commandLineBuffer.append("--");
 					} else {
 						commandLineBuffer.append("-");
 					}
 
 					commandLineBuffer.append(sArgName).append(" ");
 
 					if (sArgValue != null) {
 						boolean bQuote = sArgValue.indexOf(' ') != -1;
 
 						// FIXME : handle quote escaping...
 						if (bQuote) {
 							commandLineBuffer.append("\"");
 						}
 
 						commandLineBuffer.append(sArgValue);
 
 						if (bQuote) {
 							commandLineBuffer.append("\"");
 						}
 
 						commandLineBuffer.append(" ");
 
 					}
 				}
 				sWholeCommandLine = commandLineBuffer.toString();
 
 				commandSection.addCommand(sCommandName, sPluginName,
 						sWholeCommandLine);
 			}
 		} catch (org.apache.commons.configuration.ConfigurationException e) {
 			throw new ConfigurationException(e);
 		}
 	}
 }