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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         Vicente Fernando - www.alfersoft.com.ar - Initial implementation
  10 **********************************************************************/
  11 package net.sourceforge.phpdt.internal.debug.core;
  12
  13 import java.io.IOException;
  14 import java.io.BufferedReader;
  15 import java.io.OutputStream;
  16 import java.util.Vector;
  17
  18 import org.eclipse.core.runtime.IStatus;
  19 import org.eclipse.core.runtime.Status;
  20 import org.eclipse.debug.core.DebugException;
  21
  22 import net.sourceforge.phpdt.internal.debug.core.model.PHPStackFrame;
  23 import net.sourceforge.phpdt.internal.debug.core.model.PHPVariable;
  24 import net.sourceforge.phpdt.internal.debug.core.model.PHPValue;
  25
  26 public class PHPDBGInterface {
  27
  28         // Public
  29         public boolean sessionEnded= false;
  30         public int sessType= -1;
  31         public int BPUnderHit= 0;
  32         public String sessID= new String();
  33
  34         // Private
  35         private int[] LastBPRead= new int[10];
  36         private Vector DBGBPList= new Vector();
  37         private PHPStackFrame[] DBGStackList;
  38         private PHPVariable[] DBGVariableList;
  39         private Vector DBGMods= new Vector();
  40         private Vector DBGVars= new Vector();
  41         private BufferedReader in;
  42         private OutputStream os;
  43         private boolean shouldStop= false, isRef= false, hasChildren= false, isObject= false;
  44         private String evalRet= new String("");
  45         private String serGlobals= new String("");
  46         private String typeRead= new String("");
  47         private String className= new String("");
  48         private int finalPos=0, refCounter=0, rawCounter=1000;
  49         private PHPDBGProxy proxy= null;
  50         private boolean stopOnError= false;
  51         private char[] lastCommand= new char[4];
  52
  53         public PHPDBGInterface(BufferedReader in, OutputStream os, PHPDBGProxy proxy) {
  54                 DBGBPList.clear();
  55                 this.in= in;
  56                 this.os= os;
  57                 this.proxy= proxy;
  58         }
  59
  60         public int addBreakpoint(String mod_name, int line) throws IOException {
  61                 return setBreakpoint(mod_name, "", line, PHPDBGBase.BPS_ENABLED + PHPDBGBase.BPS_UNRESOLVED, 0, 0, 0, 0, 0);
  62         }
  63
  64         public void removeBreakpoint(String mod_name, int line, int bpNo) throws IOException {
  65                 setBreakpoint(mod_name, "", line, PHPDBGBase.BPS_DISABLED, 0, 0, 0, bpNo, 0);
  66         }
  67
  68         public void requestDBGVersion() throws IOException {
  69                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
  70                 PHPDBGFrame DBGFrame= new PHPDBGFrame(PHPDBGBase.FRAME_VER);
  71
  72                 DBGPacket.addFrame(DBGFrame);
  73
  74                 if(proxy.getSocket().isClosed()) return;
  75                 DBGPacket.sendPacket(os);
  76         }
  77
  78         public void getSourceTree() throws IOException {
  79                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
  80                 PHPDBGFrame DBGFrame= new PHPDBGFrame(PHPDBGBase.FRAME_SRC_TREE);
  81
  82                 DBGPacket.addFrame(DBGFrame);
  83
  84                 if(proxy.getSocket().isClosed()) return;
  85                 DBGPacket.sendPacket(os);
  86
  87                 // Wait response (1 second) and read response
  88                 waitResponse(1000);
  89                 flushAllPackets();
  90         }
  91
  92         public void addDBGModName(String modName) throws IOException {
  93                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
  94                 PHPDBGFrame DBGFrame= new PHPDBGFrame(PHPDBGBase.FRAME_RAWDATA);
  95
  96                 rawCounter++;
  97                 DBGFrame.addInt(rawCounter);                            // FRAME_RAWDATA ID
  98                 DBGFrame.addInt(modName.length() + 1);          // length of rawdata (+ null char)
  99                 DBGFrame.addString(modName);                            // file name
 100                 DBGFrame.addChar('\0');                                         // null char
 101
 102                 DBGPacket.addFrame(DBGFrame);
 103
 104                 if(proxy.getSocket().isClosed()) return;
 105                 DBGPacket.sendPacket(os);
 106         }
 107
 108         // Returns DBG Breakpoint ID
 109         private int setBreakpoint(String mod_name, String condition, int line, int state, int istemp, int hitcount, int skiphits, int bpno, int isunderhit) throws IOException {
 110                 int modNo= 0;
 111
 112                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
 113                 PHPDBGFrame DBGFrame1= new PHPDBGFrame(PHPDBGBase.FRAME_BPS);
 114                 PHPDBGFrame DBGFrame2= new PHPDBGFrame(PHPDBGBase.FRAME_RAWDATA);
 115
 116                 modNo= getModByName(mod_name);
 117
 118                 if(modNo >= 0) {
 119                         DBGFrame1.addInt(modNo);        // mod number
 120                 } else {
 121                         DBGFrame1.addInt(0);            // mod number (0 use file name)
 122                 }
 123
 124                 DBGFrame1.addInt(line);                 // line number
 125
 126                 if(modNo >= 0) {
 127                         DBGFrame1.addInt(0);                    // use mod number
 128                 } else {
 129                         rawCounter++;
 130                         DBGFrame1.addInt(rawCounter);   // ID of FRAME_RAWDATA to send file name
 131                 }
 132
 133                 DBGFrame1.addInt(state);                // state BPS_*
 134                 DBGFrame1.addInt(istemp);               // istemp
 135                 DBGFrame1.addInt(hitcount);             // hit count
 136                 DBGFrame1.addInt(skiphits);             // skip hits
 137                 DBGFrame1.addInt(0);                    // ID of condition
 138                 DBGFrame1.addInt(bpno);                 // breakpoint number
 139                 DBGFrame1.addInt(isunderhit);   // is under hit
 140
 141                 if(modNo < 0) {
 142                         DBGFrame2.addInt(rawCounter);                           // FRAME_RAWDATA ID
 143                         DBGFrame2.addInt(mod_name.length() + 1);        // length of rawdata (+ null char)
 144                         DBGFrame2.addString(mod_name);                          // file name
 145                         DBGFrame2.addChar('\0');                                        // null char
 146                         // First add file name data
 147                         DBGPacket.addFrame(DBGFrame2);
 148                 }
 149
 150                 // Second add command data
 151                 DBGPacket.addFrame(DBGFrame1);
 152
 153                 if(proxy.getSocket().isClosed()) return 0;
 154                 DBGPacket.sendPacket(os);
 155
 156                 clearLastBP();
 157
 158                 // Wait response (1 second) and read response
 159                 waitResponse(1000);
 160                 flushAllPackets();
 161
 162                 return LastBPRead[8];
 163         }
 164
 165         private void clearLastBP() {
 166                 int i;
 167
 168                 for(i=0; i < LastBPRead.length; i++)
 169                         LastBPRead[i]= 0;
 170         }
 171
 172         private void copyToLastBP(int[] BPBody) {
 173                 int i;
 174
 175                 for(i=0; i < LastBPRead.length; i++)
 176                         LastBPRead[i]= BPBody[i];
 177         }
 178
 179         public void continueExecution() throws IOException {
 180                 BPUnderHit= 0;
 181                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_CONTINUE);
 182                 if(proxy.getSocket().isClosed()) return;
 183                 DBGPacket.sendPacket(os);
 184                 lastCommand= PHPDBGBase.DBGA_CONTINUE;
 185         }
 186
 187         public void pauseExecution() throws IOException {
 188                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.IntToChar4(PHPDBGBase.DBGC_PAUSE));
 189                 if(proxy.getSocket().isClosed()) return;
 190                 DBGPacket.sendPacket(os);
 191         }
 192
 193         private int getBPUnderHit() {
 194                 int i, BPUnder=0;
 195                 int[] dbg_bpl_body= new int[10];
 196
 197                 // look for bp under hit
 198                 for(i=0; i < DBGBPList.size(); i++) {
 199                         dbg_bpl_body= (int[]) DBGBPList.get(i);
 200                         if(dbg_bpl_body[9] == 1) {
 201                                 BPUnder= dbg_bpl_body[8];
 202                         }
 203                 }
 204                 return BPUnder;
 205         }
 206
 207         public void stepInto() throws IOException {
 208                 BPUnderHit= 0;
 209                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_STEPINTO);
 210                 if(proxy.getSocket().isClosed()) return;
 211                 DBGPacket.sendPacket(os);
 212                 lastCommand= PHPDBGBase.DBGA_STEPINTO;
 213         }
 214
 215         public void stepOver() throws IOException {
 216                 BPUnderHit= 0;
 217                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_STEPOVER);
 218                 if(proxy.getSocket().isClosed()) return;
 219                 DBGPacket.sendPacket(os);
 220                 lastCommand= PHPDBGBase.DBGA_STEPOVER;
 221         }
 222
 223         public void stepOut() throws IOException {
 224                 BPUnderHit= 0;
 225                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_STEPOUT);
 226                 if(proxy.getSocket().isClosed()) return;
 227                 DBGPacket.sendPacket(os);
 228                 lastCommand= PHPDBGBase.DBGA_STEPOUT;
 229         }
 230
 231         public void stopExecution() throws IOException {
 232                 BPUnderHit= 0;
 233                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_STOP);
 234                 if(proxy.getSocket().isClosed()) return;
 235                 DBGPacket.sendPacket(os);
 236         }
 237
 238         public PHPVariable[] getVariables(PHPStackFrame stack) throws IOException, DebugException  {
 239                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
 240                 PHPDBGFrame DBGFrame1= new PHPDBGFrame(PHPDBGBase.FRAME_EVAL);
 241
 242                 DBGFrame1.addInt(0);                                            // istr = raw data ID
 243                 DBGFrame1.addInt(1);                                            // scope_id = -1 means current location, 0 never used, +1 first depth
 244
 245                 // Add command data
 246                 DBGPacket.addFrame(DBGFrame1);
 247
 248                 if(proxy.getSocket().isClosed()) return null;
 249                 DBGPacket.sendPacket(os);
 250
 251                 waitResponse(1000);
 252                 flushAllPackets();
 253
 254                 // Process serialized variables
 255                 DBGVariableList= procVars(stack);
 256
 257                 return DBGVariableList;
 258         }
 259
 260         public void log(String logString) throws IOException, DebugException  {
 261                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
 262                 PHPDBGFrame DBGFrame1= new PHPDBGFrame(PHPDBGBase.FRAME_LOG);
 263                 PHPDBGFrame DBGFrame2= new PHPDBGFrame(PHPDBGBase.FRAME_RAWDATA);
 264
 265                 rawCounter++;
 266                 DBGFrame1.addInt(rawCounter);                           // ilog
 267                 DBGFrame1.addInt(1);                                            // type
 268                 DBGFrame1.addInt(0);                                            // mod_no
 269                 DBGFrame1.addInt(0);                                            // line_no
 270                 DBGFrame1.addInt(0);                                            // imod_name
 271                 DBGFrame1.addInt(0);                                            // ext_info
 272
 273                 DBGFrame2.addInt(rawCounter);                           // FRAME_RAWDATA ID
 274                 DBGFrame2.addInt(logString.length() + 1);       // length of rawdata (+ null char)
 275                 DBGFrame2.addString(logString);                         // log string
 276                 DBGFrame2.addChar('\0');                                        // null char
 277
 278                 // Add raw data first
 279                 DBGPacket.addFrame(DBGFrame2);
 280                 // Add command data
 281                 DBGPacket.addFrame(DBGFrame1);
 282
 283                 if(proxy.getSocket().isClosed()) return;
 284                 DBGPacket.sendPacket(os);
 285
 286                 waitResponse(1000);
 287                 flushAllPackets();
 288         }
 289
 290         public void evalBlock(String evalString) throws IOException, DebugException  {
 291                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
 292                 PHPDBGFrame DBGFrame1= new PHPDBGFrame(PHPDBGBase.FRAME_EVAL);
 293                 PHPDBGFrame DBGFrame2= new PHPDBGFrame(PHPDBGBase.FRAME_RAWDATA);
 294
 295                 rawCounter++;
 296                 DBGFrame1.addInt(rawCounter);                           // istr = raw data ID
 297                 DBGFrame1.addInt(-1);                                           // scope_id = -1 means current location, 0 never used, +1 first depth
 298
 299                 DBGFrame2.addInt(rawCounter);                           // FRAME_RAWDATA ID
 300                 DBGFrame2.addInt(evalString.length() + 1);      // length of rawdata (+ null char)
 301                 DBGFrame2.addString(evalString);                        // eval block
 302                 DBGFrame2.addChar('\0');                                        // null char
 303
 304                 // Add raw data first
 305                 DBGPacket.addFrame(DBGFrame2);
 306                 // Add command data
 307                 DBGPacket.addFrame(DBGFrame1);
 308
 309                 if(proxy.getSocket().isClosed()) return;
 310                 DBGPacket.sendPacket(os);
 311
 312                 waitResponse(1000);
 313                 flushAllPackets();
 314         }
 315
 316         public void flushAllPackets() throws IOException {
 317                 while(readResponse() != 0);
 318         }
 319
 320         public String getModByNo(int modNo) {
 321                 int i;
 322                 PHPDBGMod dbg_mod;
 323
 324                 // look for mod
 325                 for(i=0; i < DBGMods.size(); i++) {
 326                         dbg_mod= (PHPDBGMod) DBGMods.get(i);
 327                         if(dbg_mod.getNo() == modNo) {
 328                                 return dbg_mod.getName();
 329                         }
 330                 }
 331                 return "";
 332         }
 333
 334         private int getModByName(String modName) {
 335                 int i;
 336                 PHPDBGMod dbg_mod;
 337
 338                 // look for mod
 339                 for(i=0; i < DBGMods.size(); i++) {
 340                         dbg_mod= (PHPDBGMod) DBGMods.get(i);
 341                         if(dbg_mod.getName().equalsIgnoreCase(modName)) {
 342                                 return dbg_mod.getNo();
 343                         }
 344                 }
 345                 return -1;
 346         }
 347
 348         private String getRawFrameData(char[] framesInfo, int frameNo) {
 349                 int nextFrame= 0;
 350                 int[] dbg_frame= new int[2];
 351
 352                 while(nextFrame < framesInfo.length) {
 353                         dbg_frame[0] = PHPDBGBase.Char4ToInt(framesInfo, nextFrame);            // frame name
 354                         dbg_frame[1] = PHPDBGBase.Char4ToInt(framesInfo, nextFrame + 4);        // frame size
 355
 356                         nextFrame += 8;
 357                         if(dbg_frame[1] == 0) return "";
 358
 359                         switch(dbg_frame[0]) {
 360                                 case PHPDBGBase.FRAME_RAWDATA:
 361                                         if(frameNo == PHPDBGBase.Char4ToInt(framesInfo, nextFrame)) {
 362                                                 int toRead= PHPDBGBase.Char4ToInt(framesInfo, nextFrame + 4);
 363                                                 return String.copyValueOf(framesInfo, nextFrame + 8, toRead);
 364                                         }
 365                                         break;
 366                         }
 367                         // go to next frame
 368                         nextFrame += dbg_frame[1];
 369                 }
 370                 return "";
 371         }
 372
 373         public PHPVariable[] getInstVars(PHPVariable phpVar) throws DebugException {
 374                 Vector vecVars= new Vector();
 375                 PHPVariable localPHPVar;
 376                 int i=0;
 377
 378                 // already unserialized
 379                 for(i=0; i < DBGVars.size(); i++) {
 380                         localPHPVar= (PHPVariable)DBGVars.get(i);
 381                         if(localPHPVar.getParent() == phpVar) {
 382                                 vecVars.add(localPHPVar);
 383                         }
 384                 }
 385                 PHPVariable[] arrVars= new PHPVariable[vecVars.size()];
 386                 arrVars= (PHPVariable[]) vecVars.toArray(arrVars);
 387
 388                 return arrVars;
 389         }
 390
 391         private PHPVariable[] procVars(PHPStackFrame stack) throws DebugException {
 392                 Vector vecVars= new Vector();
 393
 394                 // unserialize
 395                 finalPos= 0;
 396                 refCounter= 0;
 397                 doUnserialize(stack, vecVars, null);
 398
 399                 DBGVars= vecVars;
 400
 401                 return(getInstVars(null));
 402         }
 403
 404         private String readValue(String serialVars) throws DebugException {
 405                 int startPos=0, endPos=0, lenStr=0, i=0, elements=0;
 406                 String ret= new String("");
 407
 408                 switch(serialVars.charAt(0)) {
 409                         case 'a':       // associative array, a:elements:{[index][value]...}
 410                                 typeRead= "hash";
 411                                 startPos= 1;
 412                                 endPos= serialVars.indexOf(':', startPos + 1);
 413                                 if(endPos == -1) return "";
 414                                 finalPos += endPos + 2;
 415                                 ret= new String(serialVars.substring(startPos + 1, endPos));
 416
 417                                 hasChildren= true;
 418                                 break;
 419                         case 'O':       // object, O:name_len:"name":elements:{[attribute][value]...}
 420                                 typeRead= "object";
 421
 422                                 startPos= 1;
 423                                 endPos= serialVars.indexOf(':', startPos + 1);
 424                                 if(endPos == -1) return "";
 425
 426                                 // get object class
 427                                 lenStr= Integer.parseInt(serialVars.substring(startPos + 1, endPos));
 428                                 startPos= endPos + 2;
 429                                 endPos= lenStr + startPos;
 430                                 className= new String(serialVars.substring(startPos, endPos).toString());
 431
 432                                 // get num of elements
 433                                 startPos= endPos + 1;
 434                                 endPos= serialVars.indexOf(':', startPos + 1);
 435                                 if(endPos == -1) return "";
 436                                 finalPos += endPos + 2;
 437                                 ret= new String(serialVars.substring(startPos + 1, endPos));
 438
 439                                 isObject= true;
 440                                 hasChildren= true;
 441                                 break;
 442                         case 's':       // string, s:length:"data";
 443                                 typeRead= "string";
 444                                 startPos= 1;
 445                                 endPos= serialVars.indexOf(':', startPos + 1);
 446                                 if(endPos == -1) return "";
 447
 448                                 lenStr= Integer.parseInt(serialVars.substring(startPos + 1, endPos));
 449                                 startPos= endPos + 2;
 450                                 endPos= lenStr + startPos;
 451                                 ret= new String(serialVars.substring(startPos, endPos).toString());
 452                                 finalPos += endPos + 2;
 453                                 break;
 454                         case 'i':       // integer, i:123;
 455                                 typeRead= "integer";
 456                                 startPos= 1;
 457                                 endPos= serialVars.indexOf(';', startPos + 1);
 458                                 if(endPos == -1) return "";
 459
 460                                 ret= new String(serialVars.substring(startPos + 1, endPos).toString());
 461                                 finalPos += endPos + 1;
 462                                 break;
 463                         case 'd':       // double (float), d:1.23;
 464                                 typeRead= "double";
 465                                 startPos= 1;
 466                                 endPos= serialVars.indexOf(';', startPos + 1);
 467                                 if(endPos == -1) return "";
 468
 469                                 ret= new String(serialVars.substring(startPos + 1, endPos).toString());
 470                                 finalPos += endPos + 1;
 471                                 break;
 472                         case 'N':       // NULL, N;
 473                                 typeRead= "null";
 474                                 ret= "nil";
 475                                 finalPos += 2;
 476                                 break;
 477                         case 'b':       // bool, b:0 or 1
 478                                 typeRead= "boolean";
 479                                 ret= (serialVars.charAt(2) == '1')?"true":"false";
 480                                 finalPos += endPos + 4;
 481                                 break;
 482                         case 'z':       // resource, z:typename_len:"typename":valres;
 483                                 typeRead= "resource";
 484
 485                                 startPos= 1;
 486                                 endPos= serialVars.indexOf(':', startPos + 1);
 487                                 if(endPos == -1) return "";
 488
 489                                 // get resource type name
 490                                 lenStr= Integer.parseInt(serialVars.substring(startPos + 1, endPos));
 491                                 startPos= endPos + 2;
 492                                 endPos= lenStr + startPos;
 493                                 className= new String(serialVars.substring(startPos, endPos).toString());
 494
 495                                 // get resource value
 496                                 startPos= endPos + 1;
 497                                 endPos= serialVars.indexOf(';', startPos + 1);
 498                                 if(endPos == -1) return "";
 499                                 ret= new String(serialVars.substring(startPos + 1, endPos));
 500                                 finalPos += endPos + 1;
 501                                 break;
 502                         case 'r':
 503                         case 'R':
 504                                 typeRead= "reference";
 505                                 startPos= 1;
 506                                 endPos= serialVars.indexOf(';', startPos + 1);
 507                                 if(endPos == -1) return "0";
 508
 509                                 ret= new String(serialVars.substring(startPos + 1, endPos));
 510                                 finalPos += endPos + 1;
 511                                 isRef= true;
 512                                 break;
 513                         case ';':
 514                                 typeRead= "unknown";
 515                                 finalPos+= 1;
 516                                 break;
 517                         case '?':
 518                                 finalPos+= 1;
 519                         default:
 520                                 finalPos+= 1;
 521                                 typeRead= "unknown";
 522                                 break;
 523                 }
 524                 return ret;
 525         }
 526
 527         private void doUnserialize(PHPStackFrame stack, Vector vecVars, PHPVariable parent) throws DebugException {
 528                 int i, elements= 0;
 529                 PHPVariable newVar= null;
 530                 String value= new String("");
 531                 String name= new String("");
 532                 String tmp= new String("");
 533                 String[] tmpSplit;
 534
 535                 if(finalPos > serGlobals.length() || serGlobals.equals("") || serGlobals.substring(finalPos).equals("")) return;
 536
 537                 isRef= false;
 538                 hasChildren= false;
 539                 isObject= false;
 540                 name= readValue(serGlobals.substring(finalPos));
 541
 542                 if(hasChildren) {
 543                         // main array
 544                         if(refCounter == 0) {
 545                                 value= name;
 546                                 name= "";
 547                         }
 548                 } else {
 549                         hasChildren= false;
 550                         isRef= false;
 551                         value= readValue(serGlobals.substring(finalPos));
 552                         // replaceAll doesn't work, why???
 553                         tmpSplit= value.split("\\\\");
 554                         value= "";
 555                         for(i= 0; i < tmpSplit.length; i++) {
 556                                 value= value + tmpSplit[i];
 557                                 if(!tmpSplit[i].equals("")) {
 558                                         if(i < (tmpSplit.length - 1)) {
 559                                                 value= value + "\\";
 560                                         }
 561                                 }
 562                         }
 563                 }
 564
 565                 if(!name.equals("")) {
 566                         if(isRef) {
 567                                 PHPVariable varPHP;
 568                                 for(i=0; i < vecVars.size(); i++) {
 569                                         varPHP= (PHPVariable) vecVars.get(i);
 570                                         if(varPHP.getObjectId().equals(value)) {
 571                                                 newVar= new PHPVariable(stack, name, "local", true, (PHPValue)varPHP.getValue());
 572                                                 break;
 573                                         }
 574                                 }
 575                                 if(newVar == null) {
 576                                         newVar= new PHPVariable(stack, name, "local", false, null);
 577                                 }
 578                         } else {
 579                                 refCounter++;
 580                                 newVar= new PHPVariable(stack, name, "local", value, typeRead, hasChildren, Integer.toString(refCounter), className);
 581                         }
 582                         newVar.setParent(parent);
 583                         vecVars.add(newVar);
 584                 }
 585                 if(hasChildren) {
 586                         elements= Integer.parseInt(value);
 587                         for(i=0; i < elements; i++)
 588                                 doUnserialize(stack, vecVars, newVar);
 589
 590                         // skip "}"
 591                         finalPos += 1;
 592                 }
 593         }
 594
 595         public int readResponse() throws IOException {
 596                 int bytesToRead=0, nextFrame=0, i=0, cmdReceived=0, stackIndex=0;
 597                 boolean errorStack= false;
 598                 char[] dbg_header_struct_read= new char[16];
 599                 int[] dbg_header_struct= new int[4];
 600                 int[] dbg_bpl_tmp= new int[10];
 601                 int[] dbg_frame= new int[2];
 602                 int[] dbg_eval_tmp= new int[3];
 603                 int[] dbg_src_tree_tmp= new int[4];
 604                 int[] dbg_error_tmp= new int[2];
 605                 Vector rawList= new Vector();
 606                 Vector stackList= new Vector();
 607                 PHPStackFrame[] newStackList;
 608
 609                 rawList.clear();
 610                 stackList.clear();
 611                 // Read from input
 612                 while(readInput(dbg_header_struct_read, 16) != 0) {
 613                         dbg_header_struct[0] = PHPDBGBase.Char4ToInt(dbg_header_struct_read, 0);
 614                         dbg_header_struct[1] = PHPDBGBase.Char4ToInt(dbg_header_struct_read, 4);
 615                         dbg_header_struct[2] = PHPDBGBase.Char4ToInt(dbg_header_struct_read, 8);
 616                         dbg_header_struct[3] = PHPDBGBase.Char4ToInt(dbg_header_struct_read, 12);
 617
 618                         // Check DBG sync bytes
 619                         if(dbg_header_struct[0] != 0x5953) return 0;
 620
 621                         cmdReceived= dbg_header_struct[1];
 622                         bytesToRead= dbg_header_struct[3];
 623
 624                         //System.out.println("Response Received: " + cmdReceived);
 625                         char[] entirePack= new char[bytesToRead];
 626
 627                         if(bytesToRead > 0) {
 628                                 if(readInput(entirePack, bytesToRead) < bytesToRead) return 0;
 629                         }
 630
 631                         // First process frames
 632                         nextFrame= 0;
 633                         while(nextFrame < bytesToRead) {
 634                                 dbg_frame[0] = PHPDBGBase.Char4ToInt(entirePack, nextFrame);            // frame name
 635                                 dbg_frame[1] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 4);        // frame size
 636                                 nextFrame += 8;
 637                                 if(dbg_frame[1] == 0) return 0;
 638                                 switch(dbg_frame[0]) {
 639                                         case PHPDBGBase.FRAME_STACK:
 640                                                 int[] dbg_stack_new= new int[4];
 641                                                 dbg_stack_new[0] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 0);    // line no
 642                                                 dbg_stack_new[1] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 4);    // mod no
 643                                                 dbg_stack_new[2] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 8);    // scope id
 644                                                 dbg_stack_new[3] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 12);   // id of description string
 645
 646                                                 if(dbg_stack_new[1] != 0 && !errorStack) {
 647                                                         stackIndex++;
 648                                                         PHPStackFrame newStack= new PHPStackFrame(null, getModByNo(dbg_stack_new[1]), dbg_stack_new[0], stackIndex, getRawFrameData(entirePack, dbg_stack_new[3]), dbg_stack_new[1]);
 649                                                         stackList.add(newStack);
 650                                                 }
 651                                                 errorStack= false;
 652                                                 break;
 653                                         case PHPDBGBase.FRAME_SOURCE:
 654                                                 break;
 655                                         case PHPDBGBase.FRAME_SRC_TREE:
 656                                                 dbg_src_tree_tmp[0] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 0);         // parent_mod_no
 657                                                 dbg_src_tree_tmp[1] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 4);         // parent_line_no               /* NOT USED */
 658                                                 dbg_src_tree_tmp[2] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 8);         // mod_no
 659                                                 dbg_src_tree_tmp[3] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 12);        // imod_name
 660
 661                                                 if(getModByNo(dbg_src_tree_tmp[2]).equals("")) {
 662                                                         String fileName= new String(getRawFrameData(entirePack, dbg_src_tree_tmp[3]));
 663                                                         // Remove '\0' char
 664                                                         if(fileName.length() > 0) fileName= fileName.substring(0, fileName.length() - 1);
 665
 666                                                         if(dbg_src_tree_tmp[2] != 0) {
 667                                                                 PHPDBGMod modNew= new PHPDBGMod(dbg_src_tree_tmp[2], fileName);
 668                                                                 DBGMods.add(modNew);
 669                                                         }
 670                                                 }
 671                                                 break;
 672                                         case PHPDBGBase.FRAME_RAWDATA:
 673                                                 break;
 674                                         case PHPDBGBase.FRAME_ERROR:
 675                                                 errorStack= true;
 676                                                 dbg_error_tmp[0] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 0);            // type                 /* type of error */
 677                                                 dbg_error_tmp[1] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 4);            // imessage             /* ID of error message */
 678
 679                                                 String error= "\n";
 680                                                 switch(dbg_error_tmp[0]) {
 681                                                         case PHPDBGBase.E_ERROR:
 682                                                                 error+= "[Error]";
 683                                                                 break;
 684                                                         case PHPDBGBase.E_WARNING:
 685                                                                 error+= "[Warning]";
 686                                                                 break;
 687                                                         case PHPDBGBase.E_PARSE:
 688                                                                 error+= "[Parse Error]";
 689                                                                 break;
 690                                                         case PHPDBGBase.E_NOTICE:
 691                                                                 error+= "[Notice]";
 692                                                                 break;
 693                                                         case PHPDBGBase.E_CORE_ERROR:
 694                                                                 error+= "[Core Error]";
 695                                                                 break;
 696                                                         case PHPDBGBase.E_CORE_WARNING:
 697                                                                 error+= "[Core Warning]";
 698                                                                 break;
 699                                                         case PHPDBGBase.E_COMPILE_ERROR:
 700                                                                 error+= "[Compile Error]";
 701                                                                 break;
 702                                                         case PHPDBGBase.E_COMPILE_WARNING:
 703                                                                 error+= "[Compile Warning]";
 704                                                                 break;
 705                                                         case PHPDBGBase.E_USER_ERROR:
 706                                                                 error+= "[User Error]";
 707                                                                 break;
 708                                                         case PHPDBGBase.E_USER_WARNING:
 709                                                                 error+= "[User Warning]";
 710                                                                 break;
 711                                                         case PHPDBGBase.E_USER_NOTICE:
 712                                                                 error+= "[User Notice]";
 713                                                                 break;
 714                                                         default:
 715                                                                 error+= "[Unexpected Error]";
 716                                                                 break;
 717                                                 }
 718                                                 error+= ": ";
 719                                                 error+= new String(getRawFrameData(entirePack, dbg_error_tmp[1]));
 720                                                 // Remove '\0' char
 721                                                 if(error.length() > 0) error= error.substring(0, error.length() - 1);
 722                                                 error+= "\n";
 723
 724                                                 PHPDebugCorePlugin.log(new DebugException(new Status(IStatus.WARNING, PHPDebugCorePlugin.PLUGIN_ID, IStatus.OK, error, null)));
 725                                                 // To print errors on the console, I must execute a code in the
 726                                                 // php context, that write the stderr... I didn't found a better way
 727                                                 // TODO: Find a better way????
 728                                                 String codeExec= "";
 729                                                 codeExec= "fwrite(fopen('php://stderr', 'w'),\\\"" + error + "\\\");";
 730                                                 try {
 731                                                         evalBlock("eval(\"" + codeExec + "\");");
 732                                                 } catch (DebugException e) {
 733                                                         PHPDebugCorePlugin.log(e);
 734                                                 }
 735                                                 if(!stopOnError) {
 736                                                         if(lastCommand.equals(PHPDBGBase.DBGA_CONTINUE)) {
 737                                                                 continueExecution();
 738                                                         } else if(lastCommand.equals(PHPDBGBase.DBGA_STEPINTO)) {
 739                                                                 stepInto();
 740                                                         } else if(lastCommand.equals(PHPDBGBase.DBGA_STEPOUT)) {
 741                                                                 stepOut();
 742                                                         } else if(lastCommand.equals(PHPDBGBase.DBGA_STEPOVER)) {
 743                                                                 stepOver();
 744                                                         }
 745                                                 }
 746                                                 break;
 747                                         case PHPDBGBase.FRAME_EVAL:
 748                                                 String evalString= new String("");
 749                                                 dbg_eval_tmp[0] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 0); // istr
 750                                                 dbg_eval_tmp[1] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 4); // iresult
 751                                                 dbg_eval_tmp[2] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 8); // ierror
 752
 753                                                 evalRet= getRawFrameData(entirePack, dbg_eval_tmp[1]);
 754                                                 evalString= getRawFrameData(entirePack, dbg_eval_tmp[0]);
 755                                                 serGlobals= evalRet;
 756                                                 break;
 757                                         case PHPDBGBase.FRAME_BPS:
 758                                                 break;
 759                                         case PHPDBGBase.FRAME_BPL:
 760                                                 int[] dbg_bpl_new= new int[10];
 761                                                 dbg_bpl_new[0] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 0);
 762                                                 dbg_bpl_new[1] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 4);
 763                                                 dbg_bpl_new[2] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 8);
 764                                                 dbg_bpl_new[3] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 12);
 765                                                 dbg_bpl_new[4] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 16);
 766                                                 dbg_bpl_new[5] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 20);
 767                                                 dbg_bpl_new[6] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 24);
 768                                                 dbg_bpl_new[7] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 28);
 769                                                 dbg_bpl_new[8] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 32);
 770                                                 dbg_bpl_new[9] = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 36);
 771
 772                                                 // look if breakpoint already exists in vector
 773                                                 for(i=0; i < DBGBPList.size(); i++) {
 774                                                         dbg_bpl_tmp= (int[]) DBGBPList.get(i);
 775                                                         if(dbg_bpl_tmp[8] == dbg_bpl_new[8]) {
 776                                                                 DBGBPList.remove(i);
 777                                                                 break;
 778                                                         }
 779                                                 }
 780
 781                                                 // add breakpoint to vector
 782                                                 DBGBPList.add(dbg_bpl_new);
 783                                                 copyToLastBP(dbg_bpl_new);
 784
 785                                                 // mod no returned?
 786                                                 if(getModByNo(dbg_bpl_new[0]).equals("")) {
 787                                                         String fileName= new String(getRawFrameData(entirePack, dbg_bpl_new[2]));
 788                                                         // Remove '\0' char
 789                                                         if(fileName.length() > 0) fileName= fileName.substring(0, fileName.length() - 1);
 790                                                         if(dbg_bpl_new[0] != 0) {
 791                                                                 PHPDBGMod modNew= new PHPDBGMod(dbg_bpl_new[0], fileName);
 792                                                                 DBGMods.add(modNew);
 793                                                         }
 794                                                 }
 795                                                 break;
 796                                         case PHPDBGBase.FRAME_VER:
 797                                                 break;
 798                                         case PHPDBGBase.FRAME_SID:
 799                                                 break;
 800                                         case PHPDBGBase.FRAME_SRCLINESINFO:
 801                                                 break;
 802                                         case PHPDBGBase.FRAME_SRCCTXINFO:
 803                                                 break;
 804                                         case PHPDBGBase.FRAME_LOG:
 805                                                 break;
 806                                         case PHPDBGBase.FRAME_PROF:
 807                                                 break;
 808                                         case PHPDBGBase.FRAME_PROF_C:
 809                                                 break;
 810                                         case PHPDBGBase.FRAME_SET_OPT:
 811                                                 break;
 812                                 }
 813                                 // go to next frame
 814                                 nextFrame += dbg_frame[1];
 815                         }
 816
 817                         // Now process command
 818                         switch(cmdReceived) {
 819                                 case PHPDBGBase.DBGC_REPLY:
 820                                         break;
 821                                 case PHPDBGBase.DBGC_STARTUP:
 822                                         break;
 823                                 case PHPDBGBase.DBGC_END:
 824                                         sessionEnded= true;
 825                                         break;
 826                                 case PHPDBGBase.DBGC_BREAKPOINT:
 827                                         newStackList= new PHPStackFrame[stackList.size()];
 828                                         newStackList= (PHPStackFrame[]) stackList.toArray(newStackList);
 829                                         DBGStackList= newStackList;
 830                                         BPUnderHit= getBPUnderHit();
 831                                         break;
 832                                 case PHPDBGBase.DBGC_STEPINTO_DONE:
 833                                 case PHPDBGBase.DBGC_STEPOVER_DONE:
 834                                 case PHPDBGBase.DBGC_STEPOUT_DONE:
 835                                 case PHPDBGBase.DBGC_EMBEDDED_BREAK:
 836                                 case PHPDBGBase.DBGC_PAUSE:
 837                                         BPUnderHit= 1;
 838                                         newStackList= new PHPStackFrame[stackList.size()];
 839                                         newStackList= (PHPStackFrame[]) stackList.toArray(newStackList);
 840                                         DBGStackList= newStackList;
 841                                         break;
 842                                 case PHPDBGBase.DBGC_ERROR:
 843                                         stackList.clear();
 844                                         newStackList= new PHPStackFrame[stackList.size()];
 845                                         newStackList= (PHPStackFrame[]) stackList.toArray(newStackList);
 846                                         DBGStackList= newStackList;
 847                                         break;
 848                                 case PHPDBGBase.DBGC_LOG:
 849                                         break;
 850                                 case PHPDBGBase.DBGC_SID:
 851                                         break;
 852                         }
 853                 }
 854                 return cmdReceived;
 855         }
 856
 857         public PHPStackFrame[] getStackList() {
 858                 return DBGStackList;
 859         }
 860
 861         private int readInput(char[] buffer, int bytes) throws IOException {
 862                 int bytesRead= 0;
 863
 864                 for(int i=0; i < bytes; i++) {
 865                         if(in.ready()) {
 866                                 buffer[i]= (char) (in.read() & 0x00FF);
 867                                 bytesRead++;
 868                         }
 869                         else
 870                                 break;
 871                 }
 872                 return bytesRead;
 873         }
 874
 875         public void setShouldStop() {
 876                 this.shouldStop= true;
 877         }
 878
 879         public void waitResponse(long milliseconds) throws IOException {
 880                 long timeout= System.currentTimeMillis() + milliseconds;
 881                 while(System.currentTimeMillis() < timeout) {
 882                         if(in.ready() || shouldStop) {
 883                                 break;
 884                         }
 885                 }
 886         }
 887 }