/* 
    P/P   *  Method: com.dmdirc.commandparser.commands.server.ChangeServer__static_init
          */
     1  /*
     2   * Copyright (c) 2006-2009 Chris Smith, Shane Mc Cormack, Gregory Holmes
     3   *
     4   * Permission is hereby granted, free of charge, to any person obtaining a copy
     5   * of this software and associated documentation files (the "Software"), to deal
     6   * in the Software without restriction, including without limitation the rights
     7   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     8   * copies of the Software, and to permit persons to whom the Software is
     9   * furnished to do so, subject to the following conditions:
    10   *
    11   * The above copyright notice and this permission notice shall be included in
    12   * all copies or substantial portions of the Software.
    13   *
    14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    20   * SOFTWARE.
    21   */
    22  
    23  package com.dmdirc.commandparser.commands.server;
    24  
    25  import com.dmdirc.Server;
    26  import com.dmdirc.commandparser.CommandArguments;
    27  import com.dmdirc.commandparser.CommandManager;
    28  import com.dmdirc.commandparser.commands.ServerCommand;
    29  import com.dmdirc.logger.ErrorLevel;
    30  import com.dmdirc.logger.Logger;
    31  import com.dmdirc.ui.interfaces.InputWindow;
    32  
    33  /**
    34   * The /server command allows the user to connect to a new server.
    35   * 
    36   * @author chris
    37   */
    38  public final class ChangeServer extends ServerCommand {
    39      
    40      /**
    41       * Creates a new instance of ChangeServer.
    42       */
    43      public ChangeServer() {
                 /* 
    P/P           *  Method: void com.dmdirc.commandparser.commands.server.ChangeServer()
                  * 
                  *  Preconditions:
                  *    init'ed(com/dmdirc/commandparser/CommandManager.commandChar)
                  */
    44          super();
    45          
    46          CommandManager.registerCommand(this);
    47      }
    48      
    49      /** {@inheritDoc} */
    50      @Override
    51      public void execute(final InputWindow origin, final Server server,
    52              final boolean isSilent, final CommandArguments args) {
                 /* 
    P/P           *  Method: void execute(InputWindow, Server, bool, CommandArguments)
                  * 
                  *  Preconditions:
                  *    args != null
                  *    init'ed(args.words)
                  *    (soft) args.line != null
                  *    (soft) init'ed(com/dmdirc/commandparser/CommandManager.commandChar)
                  *    (soft) server != null
                  * 
                  *  Presumptions:
                  *    offset < getArguments(...).length@75
                  *    offset < getArguments(...).length@76
                  *    offset < getArguments(...).length@96
                  *    init'ed(com.dmdirc.logger.ErrorLevel.LOW)
                  *    getArguments(...).length@65 >= 1
                  *    ...
                  * 
                  *  Postconditions:
                  *    args.words != null
                  *    init'ed(java.lang.String:split(...)._tainted)
                  *    java.lang.String:split(...)._tainted == 0
                  *    init'ed(java.lang.String:split(...).length)
                  * 
                  *  Test Vectors:
                  *    getArguments(...).length@53: {1..+Inf}, {0}
                  *    java.lang.String:charAt(...)@79: {0..42, 44..216-1}, {43}
                  *    java.lang.String:equalsIgnoreCase(...)@65: {0}, {1}
                  *    java.lang.String:indexOf(...)@75: {-231..-1}, {0..232-1}
                  *    java.lang.String:length(...)@79: {0}, {1..232-1}
                  */
    53          if (args.getArguments().length == 0) {
    54              showUsage(origin, isSilent, "server", "<host[:[+]port]> [password]");
    55              return;
    56          }
    57          
    58          boolean ssl = false;
    59          String host = "";
    60          String pass = "";
    61          int port = 6667;
    62          int offset = 0;
    63          
    64          // Check for SSL
    65          if (args.getArguments()[offset].equalsIgnoreCase("--ssl")) {
    66              Logger.userError(ErrorLevel.LOW,
    67                      "Using /server --ssl is deprecated, and may be removed in the future."
    68                      + " Use /server <host>:+<port> instead.");
    69              
    70              ssl = true;
    71              offset++;
    72          }
    73          
    74          // Check for port
    75          if (args.getArguments()[offset].indexOf(':') > -1) {
    76              final String[] parts = args.getArguments()[offset].split(":");
    77              host = parts[0];
    78              
    79              if (parts[1].length() > 0 && parts[1].charAt(0) == '+') {
    80                  ssl = true;
    81                  parts[1] = parts[1].substring(1);
    82              }            
    83              
    84              try {
    85                  port = Integer.parseInt(parts[1]);
    86              } catch (NumberFormatException ex) {
    87                  sendLine(origin, isSilent, FORMAT_ERROR, "Invalid port specified");
    88                  return;
    89              }
    90              
    91              if (port <= 0 || port > 65535) {
    92                  sendLine(origin, isSilent, FORMAT_ERROR, "Port must be between 1 and 65535");
    93                  return;
    94              }
    95          } else {
    96              host = args.getArguments()[offset];
    97          }
    98          
    99          // Check for password
   100          if (args.getArguments().length > ++offset) {
   101              pass = args.getArgumentsAsString(offset);
   102          }
   103  
   104          server.connect(host, port, pass, ssl, server.getProfile());
   105      }
   106      
   107      /** {@inheritDoc} */
   108      @Override
   109      public String getName() {
                 /* 
    P/P           *  Method: String getName()
                  * 
                  *  Postconditions:
                  *    return_value == &amp;"server"
                  */
   110          return "server";
   111      }
   112      
   113      /** {@inheritDoc} */
   114      @Override
   115      public boolean showInHelp() {
                 /* 
    P/P           *  Method: bool showInHelp()
                  * 
                  *  Postconditions:
                  *    return_value == 1
                  */
   116          return true;
   117      }
   118      
   119      /** {@inheritDoc} */
   120      @Override
   121      public String getHelp() {
                 /* 
    P/P           *  Method: String getHelp()
                  * 
                  *  Postconditions:
                  *    return_value == &amp;"server <host[:[+]port]> [password] - connect to a different server"
                  */
   122          return "server <host[:[+]port]> [password] - connect to a different server";
   123      }
   124      
   125  }