plisteditor.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   PListEditor.java

package org.gudy.azureus2.platform.macosx;

import java.io.*;
import org.gudy.azureus2.core3.util.FileUtil;

public class PListEditor
{

	private String plistFile;

	public PListEditor(String plistFile)
		throws IOException
	{
		this.plistFile = plistFile;
		File file = new File(plistFile);
		if (!file.exists())
			throw new IOException((new StringBuilder()).append("plist file '").append(file).append("' doesn't exist").toString());
		if (!file.canWrite())
			throw new IOException((new StringBuilder()).append("plist file '").append(file).append("' is read only").toString());
		else
			return;
	}

	public void setFileTypeExtensions(String extensions[])
		throws IOException
	{
		StringBuffer value = new StringBuffer();
		StringBuffer find = new StringBuffer();
		find.append("(?s).*?<key>CFBundleDocumentTypes</key>\\s*<array>.*?<key>CFBundleTypeExtensions</key>\\s*<array>");
		for (int i = 0; i < extensions.length; i++)
		{
			value.append("\n\t\t\t\t<string>");
			value.append(extensions[i]);
			value.append("</string>");
			find.append(".*?");
			find.append(extensions[i]);
		}

		value.append("\n\t\t\t");
		find.append(".*?</array>.*");
		String match = "(?s)(<key>CFBundleDocumentTypes</key>\\s*<array>.*?<key>CFBundleTypeExtensions</key>\\s*<array>)(.*?)(</array>)";
		setValue(find.toString(), match, value.toString());
	}

	public void setSimpleStringValue(String key, String value)
		throws IOException
	{
		String find = (new StringBuilder()).append("(?s).*?<key>").append(key).append("</key>\\s*").append("<string>").append(value).append("</string>.*").toString();
		String match = (new StringBuilder()).append("(?s)(<key>").append(key).append("</key>\\s*").append("<string>)(.*?)(</string>)").toString();
		setValue(find, match, value);
	}

	public void setArrayValues(String key, String valueType, String values[])
		throws IOException
	{
		StringBuffer value = new StringBuffer();
		StringBuffer find = new StringBuffer();
		find.append((new StringBuilder()).append("(?s).*?<key>").append(key).append("</key>\\s*").append("<array>").toString());
		for (int i = 0; i < values.length; i++)
		{
			find.append((new StringBuilder()).append("\\s*<").append(valueType).append(">").append(values[i]).append("</").append(valueType).append(">").toString());
			value.append((new StringBuilder()).append("\n\t\t\t\t<").append(valueType).append(">").toString());
			value.append(values[i]);
			value.append((new StringBuilder()).append("</").append(valueType).append(">").toString());
		}

		find.append("\\s*</array>.*");
		value.append("\n\t\t\t");
		String match = (new StringBuilder()).append("(?s)(<key>").append(key).append("</key>\\s*<array>)(.*?)(</array>)").toString();
		setValue(find.toString(), match, value.toString());
	}

	private boolean isValuePresent(String match)
		throws IOException
	{
		String fileContent = getFileContent();
		return fileContent.matches(match);
	}

	private void setValue(String find, String match, String value)
		throws IOException
	{
		String fileContent = getFileContent();
		if (!isValuePresent(find))
		{
			fileContent = fileContent.replaceFirst(match, (new StringBuilder()).append("$1").append(value).append("$3").toString());
			setFileContent(fileContent);
			touchFile();
		}
	}

	private String getFileContent()
		throws IOException
	{
		FileReader fr = null;
		String s;
		fr = new FileReader(plistFile);
		int length = 32768;
		char buffer[] = new char[length];
		int offset = 0;
		for (int len = 0; (len = fr.read(buffer, offset, length - offset)) > 0;)
			offset += len;

		String result = new String(buffer, 0, offset);
		s = result;
		if (fr != null)
			fr.close();
		return s;
		Exception exception;
		exception;
		if (fr != null)
			fr.close();
		throw exception;
	}

	private void setFileContent(String fileContent)
		throws IOException
	{
		File file;
		File backup_file;
		boolean ok;
		file = new File(plistFile);
		backup_file = new File((new StringBuilder()).append(plistFile).append(".bak").toString());
		if (file.exists() && !FileUtil.copyFile(file, backup_file))
			throw new IOException("Failed to backup plist file prior to modification");
		ok = false;
		FileWriter fw = null;
		fw = new FileWriter(plistFile);
		fw.write(fileContent);
		if (fw != null)
		{
			fw.close();
			ok = true;
		}
		break MISSING_BLOCK_LABEL_126;
		Exception exception;
		exception;
		if (fw != null)
		{
			fw.close();
			ok = true;
		}
		throw exception;
		if (ok)
			backup_file.delete();
		else
		if (backup_file.exists())
		{
			File bork_file = new File((new StringBuilder()).append(plistFile).append(".bad").toString());
			file.renameTo(bork_file);
			file.delete();
			backup_file.renameTo(file);
		}
		break MISSING_BLOCK_LABEL_272;
		Exception exception1;
		exception1;
		if (ok)
			backup_file.delete();
		else
		if (backup_file.exists())
		{
			File bork_file = new File((new StringBuilder()).append(plistFile).append(".bad").toString());
			file.renameTo(bork_file);
			file.delete();
			backup_file.renameTo(file);
		}
		throw exception1;
	}

	public void touchFile()
	{
		File file = new File(plistFile);
		for (int i = 0; i <= 2; i++)
		{
			if (file != null)
			{
				String command[] = {
					"touch", file.getAbsolutePath()
				};
				try
				{
					Runtime.getRuntime().exec(command);
				}
				catch (Exception e)
				{
					e.printStackTrace();
				}
			}
			file = file.getParentFile();
		}

	}

	public static void main(String args[])
	{
		try
		{
			PListEditor editor = new PListEditor("/Applications/Vuze.app/Contents/Info.plist");
			editor.setFileTypeExtensions(new String[] {
				"torrent", "tor", "vuze", "vuz"
			});
			editor.setSimpleStringValue("CFBundleName", "Vuze");
			editor.setSimpleStringValue("CFBundleTypeName", "Vuze Download");
			editor.setSimpleStringValue("CFBundleGetInfoString", "Vuze");
			editor.setArrayValues("CFBundleURLSchemes", "string", new String[] {
				"magnet", "dht"
			});
		}
		catch (Throwable e)
		{
			e.printStackTrace();
		}
	}
}