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/*
* Created on May 6, 2003
*
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
Copyright 2003 Joseph Barnett
This File is part of "one 2 oh my god"
"one 2 oh my god" is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Free Software Foundation; either version 2 of the License, or
your option) any later version.
"one 2 oh my god" is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with "one 2 oh my god"; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package itunes.client.request;
import itunes.*;
import itunes.util.Hasher;
import java.net.*;
import java.io.*;
import java.util.ArrayList;
/**
* @author jbarnett
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
public abstract class Request {
public static final int ITUNES_PORT = 3689;
public static boolean debug = false;
protected String server;
protected int port;
public byte[] data;
protected int offset;
protected int expectedLength;
protected String dataType;
protected ArrayList fieldPairs;
protected ArrayList mlitIndexes;
protected ArrayList mlclIndexes;
protected ArrayList mdclIndexes;
protected String requestString;
public Request(String server, int port, String rs) throws NoServerPermissionException {
this.server = server;
this.port = port;
dataType = "";
offset = 0;
fieldPairs = new ArrayList();
mlitIndexes = new ArrayList();
mlclIndexes = new ArrayList();
mdclIndexes = new ArrayList();
requestString = rs;
Query();
Process();
}
protected void Query() throws NoServerPermissionException {
URL url =null;
try {
url = new URL("http://"+server+":"+port+"/"+requestString);
if (debug)
System.out.println("Processing Request: "+ server+":"+port+"/"+requestString);
URLConnection urlc = url.openConnection();
String hashCode = Hasher.GenerateHash("/" + requestString,1);
urlc.addRequestProperty("Client-DAAP-Validation", hashCode);
urlc.addRequestProperty("Client-DAAP-Access-Index", "1");
DataInputStream in = new DataInputStream(urlc.getInputStream());
int len = urlc.getContentLength();
if (len == -1) {
return;
}
data = new byte[len];
in.readFully(data);
} catch (MalformedURLException e) {
if (debug)
System.out.println("Malformed URL");
} catch (IOException ioe) {
if (debug)
System.out.println(ioe.getLocalizedMessage());
throw new NoServerPermissionException();
}
}
protected static int readSize(String data) {
return readSize(data, 4);
}
protected static int readSize(String data, int j) {
String elength = "";
for (int i = 0; i < j; i++) {
elength += ((int)data.charAt(i)>15?"":"0") + Integer.toHexString((int)data.charAt(i));
}
return Integer.valueOf(elength,16).intValue();
}
protected String dataString(int i) {
return readString(data,offset,i);
}
public static String readString(byte[] data, int offset, int i) {
String a = "";
try {
a = new String(data, offset,i,"UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return a;
}
protected int dataInt() {
return readInt(data, offset,4);
}
protected static int readInt(byte[] data, int offset) {
int i = 0;
try {
ByteArrayInputStream b = new ByteArrayInputStream(data, offset, 4);
DataInputStream d = new DataInputStream(b);
i = d.readInt();
} catch (IOException e) {
e.printStackTrace();
}
return i;
}
public static int readInt(byte[] data, int offset, int size) {
int i = 0;
try {
ByteArrayInputStream b = new ByteArrayInputStream(data, offset, size);
DataInputStream d = new DataInputStream(b);
int pow = size*2 - 1;
for (int j = 0;j<size;j++) {
int num = (0xFF&d.readByte());
int up = ((int)Math.pow(16,pow))*(num/16);
pow--;
int down= ((int)Math.pow(16,pow))*(num%16);
i+= up + down;
pow--;
}
} catch (IOException e) {
e.printStackTrace();
}
return i;
}
protected void Process() throws NoServerPermissionException {
if (data==null || data.length==0) {
return;
}
dataType= dataString(4);
offset += 4;
int size = dataInt();
offset += 4;
fieldPairs = processDataFields();
}
protected ArrayList processDataFields(byte[] data, int offset) {
ArrayList fieldPairs = new ArrayList();
while (offset < data.length) {
String name="";
name = readString(data,offset,4);
offset +=4;
int size=readInt(data,offset);
offset+=4;
FieldPair fp = new FieldPair(name, data, offset, size);
offset += size;
fieldPairs.add(fp);
if (name.equals("mlcl")) {
mlclIndexes.add(new Integer(fieldPairs.size()-1));
} else if (name.equals("mlit")) {
mlitIndexes.add(new Integer(fieldPairs.size()-1));
} else if (name.equals("mdcl")) {
mdclIndexes.add(new Integer(fieldPairs.size()-1));
}
}
return fieldPairs;
}
protected ArrayList processDataFields() {
return processDataFields(data,offset);
// ArrayList fieldPairs = new ArrayList();
// while (offset < data.length) {
// String name="";
// name = dataString(4);
// offset +=4;
// int size=dataInt();
// offset+=4;
// FieldPair fp = new FieldPair(name, data, offset, size);
// offset += size;
// fieldPairs.add(fp);
// if (name.equals("mlcl")) {
// mlclIndexes.add(new Integer(fieldPairs.size()-1));
// } else if (name.equals("mlit")) {
// mlitIndexes.add(new Integer(fieldPairs.size()-1));
// } else if (name.equals("mdcl")) {
// mdclIndexes.add(new Integer(fieldPairs.size()-1));
// }
// }
// return fieldPairs;
}
public String toString() {
String ret = "";
for (int i = 0; i < fieldPairs.size();i++) {
FieldPair fp = (FieldPair)fieldPairs.get(i);
ret += fp.toString()+"\n";
}
return ret;
}
}
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