RDPFileParser.java

/*
   Simple .RDP file parser
 
   Copyright 2013 Blaz Bacnik
 
   This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
   If a copy of the MPL was not distributed with this file, You can obtain one at
   http://mozilla.org/MPL/2.0/.
*/
 
package com.freerdp.freerdpcore.utils;
 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.util.HashMap;
import java.util.Locale;
 
public class RDPFileParser
{
 
  private static final int MAX_ERRORS = 20;
  private static final int MAX_LINES = 500;
 
  private final HashMap<String, Object> options;
 
  public RDPFileParser()
  {
    options = new HashMap<>();
  }
 
  public void parse(Reader reader) throws IOException
  {
    BufferedReader br = new BufferedReader(reader);
    String line = null;
 
    int errors = 0;
    int lines = 0;
    boolean ok;
 
    while ((line = br.readLine()) != null)
    {
      lines++;
      ok = false;
 
      if (errors > MAX_ERRORS || lines > MAX_LINES)
      {
        br.close();
        throw new IOException("Parsing limits exceeded");
      }
 
      String[] fields = line.split(":", 3);
 
      if (fields.length == 3)
      {
        if (fields[1].equals("s"))
        {
          options.put(fields[0].toLowerCase(Locale.ENGLISH), fields[2]);
          ok = true;
        }
        else if (fields[1].equals("i"))
        {
          try
          {
            Integer i = Integer.parseInt(fields[2]);
            options.put(fields[0].toLowerCase(Locale.ENGLISH), i);
            ok = true;
          }
          catch (NumberFormatException e)
          {
          }
        }
        else if (fields[1].equals("b"))
        {
          ok = true;
        }
      }
 
      if (!ok)
        errors++;
    }
    br.close();
  }
 
  public String getString(String optionName)
  {
    if (options.get(optionName) instanceof String)
      return (String)options.get(optionName);
    else
      return null;
  }
 
  public Integer getInteger(String optionName)
  {
    if (options.get(optionName) instanceof Integer)
      return (Integer)options.get(optionName);
    else
      return null;
  }
}