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   1 package net.sourceforge.phpeclipse.xdebug.core.xdebug;
   2
   3 import java.io.DataInputStream;
   4 import java.io.EOFException;
   5 import java.io.IOException;
   6 import java.io.OutputStreamWriter;
   7 import java.io.UnsupportedEncodingException;
   8 import java.net.Socket;
   9
  10 import net.sourceforge.phpeclipse.xdebug.core.Base64;
  11 import net.sourceforge.phpeclipse.xdebug.core.PHPDebugUtils;
  12 import net.sourceforge.phpeclipse.xdebug.core.XDebugCorePlugin;
  13
  14 import org.eclipse.core.runtime.IStatus;
  15
  16 /**
  17  * @author Christian Perkonig
  18  *
  19  */
  20 public class XDebugConnection {
  21         private int fTransactionID;
  22         private Socket fDebugSocket;
  23         private OutputStreamWriter fDebugWriter;
  24         private DataInputStream fDebugReader;
  25         private boolean fInitialized;
  26         private boolean fIsClosed;
  27         private String fSessionID;
  28
  29         public String getSessionID() {
  30                 return fSessionID;
  31         }
  32
  33         public boolean isInitialized() {
  34                 return fInitialized;
  35         }
  36
  37         public boolean isClosed() {
  38                 return fIsClosed;
  39         }
  40
  41         public XDebugConnection(Socket debugSocket) {
  42                 fDebugSocket = debugSocket;
  43                 fTransactionID = 0;
  44                 fInitialized = false;
  45                 try {
  46                         fDebugWriter = new OutputStreamWriter(debugSocket.getOutputStream(), "UTF8");
  47                         fDebugReader = new DataInputStream(debugSocket.getInputStream());
  48                 } catch (UnsupportedEncodingException e) {
  49                         e.printStackTrace();
  50                 } catch (IOException e) {
  51                         e.printStackTrace();
  52                 }
  53
  54                 fIsClosed = false;
  55
  56                 String initString = readData();
  57                 XDebugCorePlugin.log(IStatus.INFO,initString);
  58
  59                 int startIdx = initString.indexOf("idekey=\"");
  60                 if (startIdx == -1)
  61                         return;
  62                 startIdx += 8;
  63                 int endIdx=initString.indexOf('"',startIdx);
  64                 if (endIdx==-1)
  65                         return;
  66                 fSessionID = initString.substring(startIdx,endIdx);
  67                 fInitialized = true;
  68         }
  69
  70         protected String readData()     {
  71                 if (fIsClosed)
  72                         return null;
  73
  74         byte byteBuffer[]=null,b;
  75                 int count=0;
  76
  77                 try {
  78                         while ((b =fDebugReader.readByte()) != 0) {
  79                                 count = count * 10 + b - '0';
  80                         }
  81                         byteBuffer = new byte[count];
  82                         int readCount=0;
  83                         int attempts=0;
  84                         while ((count >0) && (attempts <5)) {
  85                                 int rc=fDebugReader.read(byteBuffer,readCount,count);
  86                                 count-=rc;
  87                                 readCount+=rc;
  88                                 if (count>65530)
  89                                         try {
  90                                                 Thread.sleep(200);
  91                                         } catch (InterruptedException e) {
  92                                         }
  93                                 else
  94                                         attempts++;
  95                         }
  96
  97                         fDebugReader.readFully(byteBuffer,readCount,count);
  98
  99                         if((b= fDebugReader.readByte())!=0) // reads the NULL Byte at the end;
 100                                 System.out.println("NULL-Byte missing!!");
 101                 } catch (IOException e) {
 102                         if (e instanceof EOFException == false) {
 103                                 if (!fIsClosed) {
 104                                         e.printStackTrace();
 105                                 }
 106                         }
 107                         return null;
 108                 }
 109                 return new String(byteBuffer);
 110         }
 111
 112         private /*XDebugResponse*/ int sendRequest(String command, String arguments) {
 113                 return _sendRequest(command, arguments);
 114         }
 115
 116         private synchronized int _sendRequest(String command, String arguments) {
 117                 if (fDebugSocket == null) {
 118                         return 0;
 119                 }
 120
 121                 XDebugCorePlugin.log(IStatus.INFO,command+" -i "+fTransactionID+" "+arguments);
 122                 synchronized (fDebugSocket) {
 123                         try {
 124                                 fDebugWriter.write(command);
 125                                 fDebugWriter.write(" -i " + fTransactionID);
 126                                 if (!"".equals(arguments))
 127                                         fDebugWriter.write(" " + arguments);
 128                                 fDebugWriter.write(0);
 129                                 fDebugWriter.flush();
 130                         } catch (IOException e) {
 131                                 e.printStackTrace();
 132                 }
 133                 }
 134
 135                 return fTransactionID++;
 136         }
 137
 138         public /*XDebugResponse*/ int eval(String Expression) {
 139                 String encoded = Base64.encodeBytes(Expression.getBytes());
 140
 141                 return sendRequest("eval", "-- "+encoded);
 142         }
 143
 144         public /*XDebugResponse*/ int featureGet(String featureName) {
 145                 return sendRequest("feature_get","-n "+featureName);
 146         }
 147
 148         public int  featureSet(String featureName, String value) {
 149                 return sendRequest("feature_set","-n "+featureName + " -v " + value);
 150         }
 151
 152         public /*XDebugResponse*/ int  breakpointSetOld(String file, int lineNumber) {
 153                 String arg = "-t line -f file://"+PHPDebugUtils.escapeString(file)+" -n " + lineNumber;
 154                 return sendRequest("breakpoint_set", arg);
 155         }
 156
 157         public /*XDebugResponse*/ int  breakpointSet(String file, int lineNumber, int hitCount) {
 158                 String arg = "-t line -f file://"+PHPDebugUtils.escapeString(file)+" -n " + lineNumber;
 159                 if (hitCount > 0) {
 160                         arg += " -h " + hitCount;
 161                 }
 162                 return sendRequest("breakpoint_set", arg);
 163         }
 164
 165         public int  breakpointGet(int id) {
 166                 String arg = "-d " + id;
 167
 168                 return sendRequest("breakpoint_get", arg);
 169         }
 170
 171         public /*XDebugResponse*/ int  breakpointRemove(int id) {
 172                 return sendRequest("breakpoint_set", "-d " + id);
 173         }
 174
 175         public /*XDebugResponse*/ int  stackGet(/*int Level*/) {
 176                 return sendRequest("stack_get", "");
 177         }
 178
 179         public void stepOver() {
 180                 sendRequest("step_over", "");
 181         }
 182
 183         public void stepInto() {
 184                 sendRequest("step_into", "");
 185         }
 186
 187         public void stepOut() {
 188                 sendRequest("step_out", "");
 189         }
 190
 191         public void run() {
 192                 sendRequest("run", "");
 193         }
 194
 195         public void stop() {
 196                 sendRequest("stop", "");
 197         }
 198
 199         public /*XDebugResponse*/ int  propertySet(String Name, String Value) {
 200                 String str = Base64.encodeBytes(Value.getBytes());
 201                 int len = str.length();
 202
 203                 return sendRequest("property_set", "-n " + Name + " -d 0 -l " + len + " -- " + str);
 204         }
 205
 206         public /*XDebugResponse*/ int  contextGet(int Level, int Type) {
 207                 return sendRequest("context_get", "-d " + Level + " -c " + Type);
 208         }
 209
 210         public int setVarValue(String Name, String Value) {
 211                 return propertySet(Name, Value);
 212         }
 213
 214         public void close() {
 215                 if (!fIsClosed) {
 216                         fIsClosed = true;
 217                         try {
 218                                 fDebugSocket.close();
 219                                 fDebugReader.close();
 220                                 //fDebugReader = null;
 221                                 fDebugWriter.close();
 222                         } catch (IOException e) {
 223                                 e.printStackTrace();
 224                         }
 225                 }
 226         }
 227 }