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   1 /**********************************************************************
   2 Copyright (c) 2000, 2002 IBM Corp. and others.
   3 All rights reserved. This program and the accompanying materials
   4 are made available under the terms of the Common Public License v1.0
   5 which accompanies this distribution, and is available at
   6 http://www.eclipse.org/legal/cpl-v10.html
   7
   8 Contributors:
   9         IBM Corporation - Initial implementation
  10         Vicente Fernando - www.alfersoft.com.ar
  11         Christian Perkonig - remote debug
  12 **********************************************************************/
  13 package net.sourceforge.phpdt.internal.debug.core;
  14
  15 import java.io.BufferedReader;
  16 import java.io.IOException;
  17 import java.io.InputStreamReader;
  18 import java.io.OutputStream;
  19 import java.net.Socket;
  20 import java.net.ServerSocket;
  21 import java.net.SocketTimeoutException;
  22
  23 import org.eclipse.core.runtime.CoreException;
  24 import org.eclipse.core.runtime.IPath;
  25 import org.eclipse.core.runtime.Path;
  26 import org.eclipse.debug.core.DebugPlugin;
  27 import org.eclipse.debug.core.DebugException;
  28 import org.eclipse.debug.core.model.IBreakpoint;
  29 import net.sourceforge.phpdt.internal.debug.core.model.IPHPDebugTarget;
  30 import net.sourceforge.phpdt.internal.debug.core.model.PHPStackFrame;
  31 import net.sourceforge.phpdt.internal.debug.core.model.PHPThread;
  32 import net.sourceforge.phpdt.internal.debug.core.model.PHPVariable;
  33 import net.sourceforge.phpdt.internal.debug.core.breakpoints.PHPLineBreakpoint;
  34
  35 public class PHPDBGProxy {
  36
  37         private ServerSocket server= null;
  38         private Socket socket;
  39         private BufferedReader reader= null;
  40         private PHPDBGInterface DBGInt= null;
  41         private IPHPDebugTarget debugTarget= null;
  42         private PHPLoop phpLoop;
  43         private PHPThread PHPMainThread;
  44         private PHPDBGProxy thisProxy= null;
  45         private int port;
  46         private boolean remote;
  47         private IPath remoteSourcePath;
  48
  49         public PHPDBGProxy() {
  50                 thisProxy= this;
  51         }
  52
  53         public PHPDBGProxy(boolean remote,String remoteSourcePath) {
  54                 thisProxy= this;
  55                 this.remote=remote;
  56                 this.remoteSourcePath= new Path(remoteSourcePath);
  57         }
  58
  59         public void start() {
  60                 createServerSocket();
  61                 this.startPHPLoop();
  62         }
  63
  64         public void stop() {
  65                 phpLoop.setShouldStop();
  66                 if(DBGInt != null) DBGInt.setShouldStop();
  67                 phpLoop.notifyWait();
  68         }
  69
  70         protected ServerSocket getServerSocket() throws IOException {
  71                 if (server == null) {
  72                         createServerSocket();
  73                 }
  74                 return server;
  75         }
  76
  77         protected void createServerSocket() {
  78 //              port = SocketUtil.findUnusedLocalPort("localhost", 10001, 10101);
  79     port =      10001;
  80                 if (port == -1) {
  81                         PHPDebugCorePlugin.log(5, "Cannot find free port!!!!");
  82                         return;
  83                 }
  84                 try {
  85                         if (server == null) {
  86                                 server = new ServerSocket(port);
  87                                 //System.out.println("ServerSocket on port: " + port);
  88                         }
  89                 } catch (IOException e) {
  90                         // IO Error
  91                         PHPDebugCorePlugin.log(e);
  92                         stop();
  93                 }
  94         }
  95
  96         public Socket getSocket() throws IOException {
  97                 return socket;
  98         }
  99
 100         protected void setDBGInterface(PHPDBGInterface DBGInt) {
 101                 this.DBGInt= DBGInt;
 102         }
 103
 104         public BufferedReader getReader() throws IOException {
 105                 if (reader == null) {
 106                         reader = new BufferedReader(new InputStreamReader(this.getSocket().getInputStream(), "ISO8859_1"));
 107                 }
 108                 return reader;
 109         }
 110
 111         public BufferedReader getReader(Socket socket) throws IOException {
 112                 if (socket != null)
 113                   return new BufferedReader(new InputStreamReader(socket.getInputStream(), "ISO8859_1"));
 114                 else
 115                   return null;
 116         }
 117
 118         public OutputStream getOutputStream() throws IOException {
 119                 return this.getSocket().getOutputStream();
 120         }
 121
 122         protected void setBreakPoints() throws IOException, CoreException {
 123                 IBreakpoint[] breakpoints = DebugPlugin.getDefault().getBreakpointManager().getBreakpoints();
 124                 for (int i = 0; i < breakpoints.length; i++) {
 125                         addBreakpoint(breakpoints[i]);
 126                 }
 127         }
 128
 129         public void addBreakpoint(IBreakpoint breakpoint) {
 130                 if (DBGInt == null) return;
 131                 int bpNo= 0;
 132                 try {
 133                         PHPLineBreakpoint phpLBP;
 134                         if(breakpoint.getModelIdentifier() == PHPDebugCorePlugin.getDefault().getDescriptor().getUniqueIdentifier()) {
 135                                 IPath filename;
 136                                 phpLBP= (PHPLineBreakpoint)breakpoint;
 137                                 //                              bpNo= DBGInt.addBreakpoint(phpLBP.getMarker().getResource().getLocation().toOSString(), phpLBP.getLineNumber());
 138                                 if (remote)
 139                                         filename=remoteSourcePath.append(phpLBP.getMarker().getResource().getProjectRelativePath());
 140                                 else
 141                                         filename=phpLBP.getMarker().getResource().getLocation();
 142                                 bpNo= DBGInt.addBreakpoint(filename.toOSString(), phpLBP.getLineNumber());
 143                                 phpLBP.setDBGBpNo(bpNo);
 144                         }
 145                 } catch (IOException e) {
 146                         PHPDebugCorePlugin.log(e);
 147                         stop();
 148                 } catch (CoreException e) {
 149                         PHPDebugCorePlugin.log(e);
 150                         stop();
 151                 }
 152         }
 153
 154         public void removeBreakpoint(IBreakpoint breakpoint) {
 155                 if (DBGInt == null) return;
 156                 try {
 157                         PHPLineBreakpoint phpLBP;
 158                         if(breakpoint.getModelIdentifier() == PHPDebugCorePlugin.getDefault().getDescriptor().getUniqueIdentifier()) {
 159                                 phpLBP= (PHPLineBreakpoint)breakpoint;
 160                                 IPath filename;
 161                                 if (remote)
 162                                         filename=remoteSourcePath.append(phpLBP.getMarker().getResource().getProjectRelativePath());
 163                                 else
 164                                         filename=phpLBP.getMarker().getResource().getLocation();
 165 //                                      bpNo= DBGInt.addBreakpoint(filename.toOSString(), phpLBP.getLineNumber());
 166                                 DBGInt.removeBreakpoint(filename.toOSString(), phpLBP.getLineNumber(), phpLBP.getDBGBpNo());
 167                         }
 168                 } catch (IOException e) {
 169                         PHPDebugCorePlugin.log(e);
 170                         stop();
 171                 } catch (CoreException e) {
 172                         PHPDebugCorePlugin.log(e);
 173                         stop();
 174                 }
 175         }
 176
 177         public void startPHPLoop() {
 178                 phpLoop = new PHPLoop();
 179                 phpLoop.start();
 180         }
 181
 182         public void resume(PHPThread thread) {
 183                 try {
 184                         DBGInt.continueExecution();
 185                         phpLoop.notifyWait();
 186                 } catch (IOException e) {
 187                         PHPDebugCorePlugin.log(e);
 188                         stop();
 189                 }
 190         }
 191
 192         protected IPHPDebugTarget getDebugTarget() {
 193                 return debugTarget;
 194         }
 195
 196         public void setDebugTarget(IPHPDebugTarget debugTarget) {
 197                 this.debugTarget = debugTarget;
 198                 debugTarget.setPHPDBGProxy(this);
 199         }
 200
 201         public PHPVariable[] readVariables(PHPStackFrame frame) {
 202                 try {
 203                         return DBGInt.getVariables(frame);
 204                 } catch (IOException ioex) {
 205                         ioex.printStackTrace();
 206                         throw new RuntimeException(ioex.getMessage());
 207                 } catch (DebugException ex) {
 208                         ex.printStackTrace();
 209                         throw new RuntimeException(ex.getMessage());
 210                 }
 211         }
 212
 213         public PHPVariable[] readInstanceVariables(PHPVariable variable) {
 214                 try {
 215                         return DBGInt.getInstVars(variable);
 216                 } catch (DebugException ex) {
 217                         ex.printStackTrace();
 218                         throw new RuntimeException(ex.getMessage());
 219                 }
 220
 221         }
 222
 223         public void readStepOverEnd(PHPStackFrame stackFrame) {
 224                 try {
 225                         DBGInt.stepOver();
 226                         phpLoop.notifyWait();
 227                 } catch (Exception e) {
 228                         PHPDebugCorePlugin.log(e);
 229                 }
 230         }
 231
 232         public void readStepReturnEnd(PHPStackFrame stackFrame) {
 233                 try {
 234                         DBGInt.stepOut();
 235                         phpLoop.notifyWait();
 236                 } catch (Exception e) {
 237                         PHPDebugCorePlugin.log(e);
 238                 }
 239         }
 240
 241         public void readStepIntoEnd(PHPStackFrame stackFrame) {
 242                 try {
 243                         DBGInt.stepInto();
 244                         phpLoop.notifyWait();
 245                 } catch (Exception e) {
 246                         PHPDebugCorePlugin.log(e);
 247                 }
 248         }
 249
 250 /*
 251         public PHPStackFrame[] readFrames(PHPThread thread) {
 252                 //try {
 253                         //this.println("th " + thread.getId() + " ; f ");
 254                         //return new FramesReader(getMultiReaderStrategy()).readFrames(thread);
 255                         return null;
 256                 //} catch (IOException e) {
 257                 //      PHPDebugCorePlugin.log(e);
 258                 //      return null;
 259                 //}
 260
 261         }
 262 */
 263
 264         public void closeSocket() throws IOException {
 265                 if (socket != null) {
 266                         socket.close();
 267                 }
 268         }
 269
 270         public void closeServerSocket() throws IOException {
 271                 if (server != null) {
 272                         server.close();
 273                 }
 274         }
 275
 276         public int getPort() {
 277                 return port;
 278         }
 279
 280         class PHPLoop extends Thread {
 281                 private boolean shouldStop;
 282
 283                 public PHPLoop() {
 284                         shouldStop = false;
 285                         this.setName("PHPDebuggerLoop");
 286                 }
 287
 288                 public synchronized void setShouldStop() {
 289                         shouldStop = true;
 290                 }
 291
 292                 public synchronized void notifyWait() {
 293                         notify();
 294                 }
 295
 296                 public void run() {
 297                         try {
 298                                 char[] buf= new char[16];
 299                                 int i, pos, timeout;
 300                                 long interval= 200; // 200ms
 301                                 String line;
 302                                 PHPStackFrame[] StackList;
 303                                 boolean endFile=false;
 304                                 boolean newconnect=false;
 305                                 Socket newSocket=null;
 306                                 PHPDBGInterface newDBGInt;
 307                                 int sid=-1;
 308
 309                                 PHPMainThread = new PHPThread(getDebugTarget(), getPort());
 310                                 PHPMainThread.setName("Thread [main]");
 311                                 timeout = 0;
 312                                 while ((getDebugTarget() == null) && (timeout < 100)) {
 313                                         sleep(100);
 314                                         timeout++;
 315                                 }
 316                                 // Be sure debug target is set
 317                                 PHPMainThread.setDebugTarget(getDebugTarget());
 318                                 getDebugTarget().addThread(PHPMainThread);
 319
 320                                 //System.out.println("Waiting for breakpoints.");
 321                                 while (!shouldStop)
 322                                 {
 323                                         newconnect=true;
 324                 try {
 325                   newSocket = server.accept();
 326                  //System.out.println("Accepted! : " + socket.toString());
 327                 } catch (SocketTimeoutException e) {
 328                                                 // no one wants to connect
 329                                                 newconnect=false;
 330                     } catch (IOException e) {
 331                 PHPDebugCorePlugin.log(e);
 332               return;
 333               }
 334
 335                                         if (newconnect)
 336                                         {
 337                                                 if (DBGInt==null)
 338                                                         server.setSoTimeout(1);
 339                                                 newDBGInt= new PHPDBGInterface(getReader(newSocket), newSocket.getOutputStream(), thisProxy);
 340                                                 newDBGInt.waitResponse(1000);
 341                   newDBGInt.flushAllPackets();
 342                                                 // Check version and session ID
 343                   if ((DBGInt==null) || (DBGInt.getSID()==newDBGInt.getSID()))
 344                   {
 345                         DBGInt=newDBGInt;
 346                                                         try     {
 347                                                                 closeSocket();
 348                                                         }       catch (IOException e) {
 349                                                                 PHPDebugCorePlugin.log(e);
 350                                                                 shouldStop=true;
 351                                                         }
 352                         socket=newSocket;
 353                                                         setBreakPoints();
 354                                                         DBGInt.continueExecution();
 355                   } else
 356                   {
 357                                                         newDBGInt.continueExecution();
 358                         newSocket.close();
 359                   }
 360                                         }
 361
 362                 if(DBGInt.waitResponse(interval))
 363                 {
 364
 365                 DBGInt.flushAllPackets();
 366
 367                 if (DBGInt.BPUnderHit != 0) {
 368                         StackList = DBGInt.getStackList();
 369                         if (StackList.length > 0) {
 370                         for (i = 0; i < StackList.length; i++) {
 371                         StackList[i].setThread(PHPMainThread);
 372                         if (DBGInt.getModByNo(StackList[i].getModNo()).equals("")) {
 373                                 DBGInt.getSourceTree();
 374                         }
 375                         StackList[i].setFile(
 376                                 DBGInt.getModByNo(StackList[i].getModNo()));
 377                         }
 378                         PHPMainThread.setStackFrames(StackList);
 379                         }
 380                         // Fire debug event
 381                         PHPMainThread.suspend();
 382
 383                         synchronized (this) {
 384                         wait();
 385                         }
 386                 }
 387                 }
 388           if (remote) {
 389                 if (PHPMainThread.isTerminated())
 390                 {
 391                         shouldStop=true;
 392                         break;
 393                 }
 394           } else {
 395                 if (PHPMainThread.isTerminated() || getDebugTarget().getProcess().isTerminated())
 396                 {
 397                                                         shouldStop=true;
 398                                                         break;
 399                 }
 400           }
 401 //              if (DBGInt.getLastCmd()==PHPDBGBase.DBGC_LOG)
 402 //                      endFile=true;
 403 //              }
 404 //              try
 405 //              {
 406 //                                              closeSocket();
 407 //              }
 408 //                                      catch (IOException e) {
 409 //                                              PHPDebugCorePlugin.log(e);
 410 //                                              shouldStop=true;
 411 //                                      }
 412 //              endFile=false;
 413                                 }
 414         }
 415         catch (Exception ex) {
 416         PHPDebugCorePlugin.log(ex);
 417         System.out.println(ex);
 418         }
 419         finally {
 420                 try {
 421                 getDebugTarget().terminate();
 422                 closeSocket();
 423                 closeServerSocket();
 424                 }
 425                 catch (IOException e) {
 426                 PHPDebugCorePlugin.log(e);
 427                 return;
 428         }
 429         //System.out.println("Socket loop finished.");
 430         }
 431                 }
 432         }
 433 }