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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                 if (!remote) {
  68                         try {
  69                                 getDebugTarget().getProcess().terminate();
  70                         } catch (DebugException e) {
  71                                 e.printStackTrace();
  72                         }
  73                 }
  74                 phpLoop.notifyWait();
  75         }
  76
  77         protected ServerSocket getServerSocket() throws IOException {
  78                 if (server == null) {
  79                         createServerSocket();
  80                 }
  81                 return server;
  82         }
  83
  84         protected void createServerSocket() {
  85 //              port = SocketUtil.findUnusedLocalPort("localhost", 10001, 10101);
  86     port =      10001;
  87                 if (port == -1) {
  88                         PHPDebugCorePlugin.log(5, "Cannot find free port!!!!");
  89                         return;
  90                 }
  91                 try {
  92                         if (server == null) {
  93                                 server = new ServerSocket(port);
  94                                 //System.out.println("ServerSocket on port: " + port);
  95                         }
  96                 } catch (IOException e) {
  97                         // IO Error
  98                         PHPDebugCorePlugin.log(e);
  99                         stop();
 100                 }
 101         }
 102
 103         public Socket getSocket() throws IOException {
 104                 return socket;
 105         }
 106
 107         protected void setDBGInterface(PHPDBGInterface DBGInt) {
 108                 this.DBGInt= DBGInt;
 109         }
 110
 111         public BufferedReader getReader() throws IOException {
 112                 if (reader == null) {
 113                         reader = new BufferedReader(new InputStreamReader(this.getSocket().getInputStream(), "ISO8859_1"));
 114                 }
 115                 return reader;
 116         }
 117
 118         public BufferedReader getReader(Socket socket) throws IOException {
 119                 if (socket != null)
 120                   return new BufferedReader(new InputStreamReader(socket.getInputStream(), "ISO8859_1"));
 121                 else
 122                   return null;
 123         }
 124
 125         public OutputStream getOutputStream() throws IOException {
 126                 return this.getSocket().getOutputStream();
 127         }
 128
 129         protected void setBreakPoints() throws IOException, CoreException {
 130                 IBreakpoint[] breakpoints = DebugPlugin.getDefault().getBreakpointManager().getBreakpoints();
 131                 for (int i = 0; i < breakpoints.length; i++) {
 132                         addBreakpoint(breakpoints[i]);
 133                 }
 134         }
 135
 136         public void addBreakpoint(IBreakpoint breakpoint) {
 137                 if (DBGInt == null) return;
 138                 int bpNo= 0;
 139                 try {
 140                         PHPLineBreakpoint phpLBP;
 141                         if(breakpoint.getModelIdentifier() == PHPDebugCorePlugin.getUniqueIdentifier()) {
 142                                 IPath filename;
 143                                 phpLBP= (PHPLineBreakpoint)breakpoint;
 144                                 //                              bpNo= DBGInt.addBreakpoint(phpLBP.getMarker().getResource().getLocation().toOSString(), phpLBP.getLineNumber());
 145                                 if (remote)
 146                                         filename=remoteSourcePath.append(phpLBP.getMarker().getResource().getProjectRelativePath());
 147                                 else
 148                                         filename=phpLBP.getMarker().getResource().getLocation();
 149                                 bpNo= DBGInt.addBreakpoint(filename.toOSString(), phpLBP.getLineNumber());
 150                                 phpLBP.setDBGBpNo(bpNo);
 151                         }
 152                 } catch (IOException e) {
 153                         PHPDebugCorePlugin.log(e);
 154                         stop();
 155                 } catch (CoreException e) {
 156                         PHPDebugCorePlugin.log(e);
 157                         stop();
 158                 }
 159         }
 160
 161         public void removeBreakpoint(IBreakpoint breakpoint) {
 162                 if (DBGInt == null) return;
 163                 try {
 164                         PHPLineBreakpoint phpLBP;
 165                         if(breakpoint.getModelIdentifier() == PHPDebugCorePlugin.getUniqueIdentifier()) {
 166                                 phpLBP= (PHPLineBreakpoint)breakpoint;
 167                                 IPath filename;
 168                                 if (remote)
 169                                         filename=remoteSourcePath.append(phpLBP.getMarker().getResource().getProjectRelativePath());
 170                                 else
 171                                         filename=phpLBP.getMarker().getResource().getLocation();
 172 //                                      bpNo= DBGInt.addBreakpoint(filename.toOSString(), phpLBP.getLineNumber());
 173                                 DBGInt.removeBreakpoint(filename.toOSString(), phpLBP.getLineNumber(), phpLBP.getDBGBpNo());
 174                         }
 175                 } catch (IOException e) {
 176                         PHPDebugCorePlugin.log(e);
 177                         stop();
 178                 } catch (CoreException e) {
 179                         PHPDebugCorePlugin.log(e);
 180                         stop();
 181                 }
 182         }
 183
 184         public void phpLoopNotify (){
 185                 phpLoop.notifyWait();
 186         }
 187
 188         public void startPHPLoop() {
 189                 phpLoop = new PHPLoop();
 190                 phpLoop.start();
 191         }
 192
 193         public void resume() {
 194                 try {
 195                         DBGInt.continueExecution();
 196                         phpLoop.notifyWait();
 197                 } catch (IOException e) {
 198                         PHPDebugCorePlugin.log(e);
 199                         stop();
 200                 }
 201         }
 202
 203         public void pause() {
 204                 try {
 205                         DBGInt.pauseExecution();
 206                 } catch (IOException e) {
 207                         PHPDebugCorePlugin.log(e);
 208                         stop();
 209                 }
 210         }
 211         protected IPHPDebugTarget getDebugTarget() {
 212                 return debugTarget;
 213         }
 214
 215         public void setDebugTarget(IPHPDebugTarget debugTarget) {
 216                 this.debugTarget = debugTarget;
 217                 debugTarget.setPHPDBGProxy(this);
 218         }
 219
 220         public PHPVariable[] readVariables(PHPStackFrame frame) {
 221                 try {
 222                         return DBGInt.getVariables(frame);
 223                 } catch (IOException ioex) {
 224                         ioex.printStackTrace();
 225                         throw new RuntimeException(ioex.getMessage());
 226                 } catch (DebugException ex) {
 227                         ex.printStackTrace();
 228                         throw new RuntimeException(ex.getMessage());
 229                 }
 230         }
 231
 232         public PHPVariable[] eval(PHPStackFrame frame,String evalString) {
 233                 try {
 234                         return DBGInt.evalBlock(frame,evalString);
 235                         //                      return DBGInt.getVariables(frame);
 236                 } catch (IOException ioex) {
 237                         ioex.printStackTrace();
 238                         throw new RuntimeException(ioex.getMessage());
 239                 } catch (DebugException ex) {
 240                         ex.printStackTrace();
 241                         throw new RuntimeException(ex.getMessage());
 242                 }
 243         }
 244
 245         public void readStepOverEnd(PHPStackFrame stackFrame) {
 246                 try {
 247                         DBGInt.stepOver();
 248                         phpLoop.notifyWait();
 249                 } catch (Exception e) {
 250                         PHPDebugCorePlugin.log(e);
 251                 }
 252         }
 253
 254         public void readStepReturnEnd(PHPStackFrame stackFrame) {
 255                 try {
 256                         DBGInt.stepOut();
 257                         phpLoop.notifyWait();
 258                 } catch (Exception e) {
 259                         PHPDebugCorePlugin.log(e);
 260                 }
 261         }
 262
 263         public void readStepIntoEnd(PHPStackFrame stackFrame) {
 264                 try {
 265                         DBGInt.stepInto();
 266                         phpLoop.notifyWait();
 267                 } catch (Exception e) {
 268                         PHPDebugCorePlugin.log(e);
 269                 }
 270         }
 271
 272 /*
 273         public PHPStackFrame[] readFrames(PHPThread thread) {
 274                 //try {
 275                         //this.println("th " + thread.getId() + " ; f ");
 276                         //return new FramesReader(getMultiReaderStrategy()).readFrames(thread);
 277                         return null;
 278                 //} catch (IOException e) {
 279                 //      PHPDebugCorePlugin.log(e);
 280                 //      return null;
 281                 //}
 282
 283         }
 284 */
 285
 286         public void closeSocket() throws IOException {
 287                 if (socket != null) {
 288                         socket.close();
 289                 }
 290         }
 291
 292         public void closeServerSocket() throws IOException {
 293                 if (server != null) {
 294                         server.close();
 295                 }
 296         }
 297
 298         public int getPort() {
 299                 return port;
 300         }
 301
 302         class PHPLoop extends Thread {
 303                 private boolean shouldStop;
 304
 305                 public PHPLoop() {
 306                         shouldStop = false;
 307                         this.setName("PHPDebuggerLoop");
 308                 }
 309
 310                 public synchronized void setShouldStop() {
 311                         shouldStop = true;
 312                 }
 313
 314                 public synchronized void notifyWait() {
 315                         notify();
 316                 }
 317
 318                 public void run() {
 319                         try {
 320                                 char[] buf= new char[16];
 321                                 int i, pos, timeout;
 322                                 long interval= 200; // 200ms
 323                                 String line;
 324                                 PHPStackFrame[] StackList;
 325                                 boolean endFile=false;
 326                                 boolean newconnect=false;
 327                                 Socket newSocket=null;
 328                                 PHPDBGInterface newDBGInt;
 329                                 int sid=-1;
 330
 331 //                              synchronized (this) {
 332 //                                      wait();
 333 //                              }
 334
 335                                 PHPMainThread = new PHPThread(getDebugTarget(), getPort());
 336                                 PHPMainThread.setName("Thread [main]");
 337                                 timeout = 0;
 338
 339 //                              while ((getDebugTarget() == null) && (timeout < 100)) {
 340 //                                      sleep(100);
 341 //                                      timeout++;
 342 //                              }
 343                                 // Be sure debug target is set
 344 //                              PHPMainThread.setDebugTarget(getDebugTarget());
 345                                 getDebugTarget().addThread(PHPMainThread);
 346
 347                                 //System.out.println("Waiting for breakpoints.");
 348                                 while (!shouldStop)
 349                                 {
 350                                         newconnect=true;
 351                                         try {
 352                                                 newSocket = server.accept();
 353                  //System.out.println("Accepted! : " + socket.toString());
 354                                         } catch (SocketTimeoutException e) {
 355                                                 // no one wants to connect
 356                                                 newconnect=false;
 357                                         } catch (IOException e) {
 358                                                 PHPDebugCorePlugin.log(e);
 359                                                 return;
 360                                         }
 361
 362                                         if (newconnect)
 363                                         {
 364                                                 if (DBGInt==null)
 365                                                         server.setSoTimeout(1);
 366                                                 newDBGInt= new PHPDBGInterface(getReader(newSocket), newSocket.getOutputStream(), thisProxy);
 367                                                 newDBGInt.waitResponse(1000);
 368                                                 newDBGInt.flushAllPackets();
 369                                                 // Check version and session ID
 370                                                 if ((DBGInt==null) || (DBGInt.getSID()==newDBGInt.getSID()))
 371                                                 {
 372                                                         DBGInt=newDBGInt;
 373                                                         try     {
 374                                                                 closeSocket();
 375                                                         }       catch (IOException e) {
 376                                                                 PHPDebugCorePlugin.log(e);
 377                                                                 shouldStop=true;
 378                                                         }
 379                                                         socket=newSocket;
 380                                                         setBreakPoints();
 381                                                         DBGInt.continueExecution();
 382                                                 } else
 383                                                 {
 384                                                         newDBGInt.continueExecution();
 385                                                         newSocket.close();
 386                                                 }
 387                                         }
 388
 389                                         if(DBGInt.waitResponse(interval))
 390                                         {
 391
 392                                                 DBGInt.flushAllPackets();
 393
 394                                                 if (DBGInt.BPUnderHit != 0) {
 395                                                         StackList = DBGInt.getStackList();
 396                                                         if (StackList.length > 0) {
 397                                                                 for (i = 0; i < StackList.length; i++) {
 398                                                                         StackList[i].setThread(PHPMainThread);
 399                                                                         if (DBGInt.getModByNo(StackList[i].getModNo()).equals("")) {
 400                                                                                 DBGInt.getSourceTree();
 401                                                                         }
 402                                                                         StackList[i].setFile(
 403                                                                                         DBGInt.getModByNo(StackList[i].getModNo()));
 404                                                                 }
 405                                                                 PHPMainThread.setStackFrames(StackList);
 406                                                         }
 407                                                         // Fire debug event
 408                                                         PHPMainThread.suspend();
 409
 410                                                         synchronized (this) {
 411                                                                 wait();
 412                                                         }
 413                                                 }
 414                                         }
 415                                         if (remote) {
 416                                                 if (PHPMainThread.isTerminated()) {
 417                                                         shouldStop=true;
 418                                                         break;
 419                                                 }
 420                                         } else {
 421                                                 if (PHPMainThread.isTerminated() || getDebugTarget().getProcess().isTerminated()) {
 422                                                         shouldStop=true;
 423                                                         break;
 424                                                 }
 425                                         }
 426                                 }
 427                         }
 428                         catch (Exception ex) {
 429                                 PHPDebugCorePlugin.log(ex);
 430                                 System.out.println(ex);
 431                         }
 432                         finally {
 433                                 try {
 434                                         getDebugTarget().terminate();
 435                                         closeSocket();
 436                                         closeServerSocket();
 437                                 } catch (IOException e) {
 438                                         PHPDebugCorePlugin.log(e);
 439                                         return;
 440                                 }
 441         //System.out.println("Socket loop finished.");
 442                         }
 443                 }
 444         }
 445 }