Compatibility fragment commit
[phpeclipse.git] / net.sourceforge.phpeclipse.32.compatibility / src / net / sourceforge / phpdt / internal / debug / core / PHPDBGProxy.java
diff --git a/net.sourceforge.phpeclipse.32.compatibility/src/net/sourceforge/phpdt/internal/debug/core/PHPDBGProxy.java b/net.sourceforge.phpeclipse.32.compatibility/src/net/sourceforge/phpdt/internal/debug/core/PHPDBGProxy.java
new file mode 100644 (file)
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+/***********************************************************************************************************************************
+ * Copyright (c) 2000, 2002 IBM Corp. and others. All rights reserved. This program and the accompanying materials are made
+ * available under the terms of the Common Public License v1.0 which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors: IBM Corporation - Initial implementation Vicente Fernando - www.alfersoft.com.ar Christian Perkonig - remote debug
+ **********************************************************************************************************************************/
+package net.sourceforge.phpdt.internal.debug.core;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.net.SocketTimeoutException;
+import java.util.Map;
+import java.util.Vector;
+
+import net.sourceforge.phpdt.internal.debug.core.breakpoints.PHPLineBreakpoint;
+import net.sourceforge.phpdt.internal.debug.core.model.PHPDebugTarget;
+import net.sourceforge.phpdt.internal.debug.core.model.PHPStackFrame;
+import net.sourceforge.phpdt.internal.debug.core.model.PHPThread;
+import net.sourceforge.phpdt.internal.debug.core.model.PHPVariable;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.debug.core.DebugException;
+import org.eclipse.debug.core.DebugPlugin;
+import org.eclipse.debug.core.model.IBreakpoint;
+
+public class PHPDBGProxy {
+
+       private ServerSocket            server          = null;
+       private BufferedReader          reader          = null;
+       private PHPDBGInterface         DBGInt          = null;         // The DBG interface which is linked with the proxy
+       private PHPDebugTarget          debugTarget = null;
+       private PHPDBGProxy             thisProxy       = null;
+       private PHPLoop                         phpLoop;
+       private PHPThread                       PHPMainThread;
+       private Socket                          socket;
+       private int                             port;
+       private boolean                         remote;
+       private boolean                         pathtranslation;
+       private Map                             pathmap;
+       private IPath                           remoteSourcePath;
+
+       /**
+        */
+       public PHPDBGProxy () {
+         thisProxy = this;
+       }
+
+       /**
+        * @param remote
+        * @param remoteSourcePath
+        * @param pathTranslate
+        * @param paths
+        */
+       public PHPDBGProxy (boolean remote, String remoteSourcePath, boolean pathTranslate, Map paths) {
+               thisProxy             = this;
+               this.remote               = remote;
+               this.remoteSourcePath = new Path (remoteSourcePath);
+               this.pathmap          = paths;
+               this.pathtranslation  = pathTranslate;
+       }
+
+       /**
+        *
+        */
+       public void start () {
+               createServerSocket ();                                      // Create a server socket for communicatio with DBG
+
+               this.startPHPLoop ();                                                                           //
+       }
+
+       /**
+        *
+        */
+       public void stop () {
+               phpLoop.setShouldStop ();                                   // Notify the thread's 'run loop' to stop
+
+               if (DBGInt != null) {                                       // If we have a DBG interface linked with this proxy
+               DBGInt.setShouldStop ();                                //  Notify the DBG interface to stop the waiting for response
+               }
+
+               if (!remote) {                                              // If it's not a remote proxy session
+               try {
+                       getDebugTarget ().getProcess ().terminate ();       //
+               } catch (DebugException e) {
+                       e.printStackTrace ();
+               }
+               }
+
+               phpLoop.notifyWait ();
+       }
+       
+       public void setTerminated () {
+               try {
+                       PHPMainThread.terminate ();
+               }
+               catch (DebugException e) {
+               }
+       }
+
+       /**
+        * TODO Is this method called from anywhere?
+        *
+        * Returns a already created server socket, or
+        * creates a server socket if none exists, and
+        * returns the newly created one.
+        *
+        * @return A server socket
+        */
+       protected ServerSocket getServerSocket () throws IOException {
+               if (server == null) {                                                                           // Do we have already a server socket
+               createServerSocket ();                                                                  //  No, then create one
+               }
+
+               return server;                                                                                          // Return the server socket
+       }
+
+       /**
+        * Find a free unused port between 10001 and 10101 if the current debug session
+        * is for remote debugging, and a unused port 7869 if it is used as non remote debugging.
+        * 
+        * For remote debugging the used port is submitted with the URL.
+        * E.g. http://localhost/index.php?DBGSESSID=1@localhost:10001
+        * For non remote debugging (if PHPeclipse used e.g. php cli directly) no port
+        * can be submitted by parameter, and only the default port (7869) can be used.
+        * 
+        * @note: The free dbg version doesn't allow to set the appropriate port within php.ini! 
+        * 
+        * 
+        */
+       protected void createServerSocket () {
+               if (this.remote) {
+                       port = SocketUtil.findUnusedLocalPort ("localhost", 10001, 10101);      // Get the first free port in the range from 10001 to 10101
+               }
+               else {
+                       port = SocketUtil.findUnusedLocalPort ("localhost", 7869, 7869);        // Get the first free port in the range from 7869 to 7869
+               }
+               
+               if (port == -1) {                                                   // Did we get a free port?
+               PHPDebugCorePlugin.log (5, "Cannot find free port!!!!");        //  No, output a error message
+
+               return;                                                         //  And return
+               }
+               try {
+               if (server == null) {                                           // If there is no server socket yet
+                       server = new ServerSocket (port);                           //  create a server socket for the free port
+                       //System.out.println("ServerSocket on port: " + port);
+               }
+               } catch (IOException e) {
+               PHPDebugCorePlugin.log (e);
+               stop ();
+               }
+       }
+
+       /**
+        *
+        */
+       public Socket getSocket () throws IOException {
+               return socket;                                                          // Return the socket
+       }
+
+       /**
+        * Set the DBG interface which is linked to this proxy
+        *
+        * @paran DBGInt The DGB interface which is linked with this proxy
+        */
+       protected void setDBGInterface (PHPDBGInterface DBGInt) {
+               this.DBGInt = DBGInt;
+       }
+
+       /**
+        * Get the DBG interface which is linked to this proxy
+        *
+        * @paran DBGInt The DGB interface which is linked with this proxy
+        */
+       public PHPDBGInterface getDBGInterface () {
+               return DBGInt;
+       }
+       
+       /**
+        * Give back a buffered input stream for the socket which is
+        * linked with this proxy
+        */
+       public BufferedReader getReader () throws IOException {
+               if (reader == null) {                                               // Do we already have a buffered input stream
+               reader = new BufferedReader (new InputStreamReader (this.getSocket ().getInputStream (),
+                                                                       "ISO8859_1"));
+               }
+
+         return reader;                                                      // Return the buffered input stream
+       }
+
+       /**
+        *
+        */
+       public BufferedReader getReader (Socket socket) throws IOException {
+               if (socket != null) {                                                                                           // Is a socket provided
+               return new BufferedReader (new InputStreamReader (socket.getInputStream (),
+                                                                                                 "ISO8859_1"));  // Then create a buffered input stream
+               }
+               else {
+               return null;                                                      // Without a socket we can't create a input stream
+               }
+       }
+
+       /**
+        *
+        * @return The output stream for this proxy's socket
+        */
+       public OutputStream getOutputStream () throws IOException {
+               return this.getSocket ().getOutputStream ();
+       }
+
+       /**
+        *
+        */
+       protected void setBreakPoints () throws IOException, CoreException {
+               IBreakpoint[] breakpoints = DebugPlugin.getDefault ().getBreakpointManager ().getBreakpoints ();
+
+               for (int i = 0; i < breakpoints.length; i++) {
+                       if (breakpoints[i].isEnabled ()) {
+                               addBreakpoint (breakpoints[i]);
+                       }
+               }
+       }
+
+       /**
+        *
+        */
+       private String MapPath (PHPLineBreakpoint phpLBP) {
+               IPath    filename;
+               IPath    remotePath;
+               IPath    newpath;
+               IPath    localPath;
+               String   local;
+
+               if (remote) {
+                       filename = phpLBP.getMarker().getResource().getProjectRelativePath();
+                       filename = remoteSourcePath.append (filename);
+               } else {
+                       filename = phpLBP.getMarker().getResource().getLocation();
+               }
+
+               String path = filename.toOSString();
+
+               if ((pathmap != null) && remote) {
+                       java.util.Iterator i = pathmap.keySet().iterator();
+
+                       while (i.hasNext()) {
+                               String k = (String) i.next();
+                               if (path.startsWith(k)) {
+                                       path = pathmap.get(k) + path.substring(k.length());
+                                       break;
+                               }
+                       }
+               }
+
+               if (remoteSourcePath.isEmpty ()) {
+                       if ((pathmap != null) && remote) {
+                               java.util.Iterator iterator = pathmap.keySet().iterator();
+
+                               while (iterator.hasNext ()) {
+                                       local      = (String) iterator.next ();                 // Get the local/client side path of the mapping
+                                       remotePath = new Path ((String) pathmap.get (local));   // Get the remote/server side path of the mapping
+                                       localPath  = new Path (local);                          // Get the remote/server side path of the mapping
+
+                                       if (localPath.isPrefixOf (filename)) {                  // Starts the remote/server side file path with the remote/server side mapping path
+                                                                                                                                                       // dann prefix abhängen und den remote path davorhägen
+                                               newpath = filename.removeFirstSegments (localPath.matchingFirstSegments (filename));
+                                               newpath = remotePath.append (newpath);
+                                               path    = newpath.toString ();
+
+                                               if (path.substring (0, 1).equals ("/")) {
+                                                       path = path.replace ('\\', '/');
+                                               }
+                                               else {
+                                                       path = path.replace ('/', '\\');
+                                               }
+
+                                               return path;
+                                       }
+                               }
+                       }
+               }
+               else {
+                       if (pathtranslation && remote) {
+                               if (remoteSourcePath.toString ().substring (0, 1).equals ("/")) {
+                                       path = path.replace ('\\', '/');
+                               }
+                               else {
+                                       path = path.replace ('/', '\\');
+                               }
+                       }
+               }
+
+               return path;
+       }
+
+       /**
+        *
+        */
+       public void addBreakpoint (IBreakpoint breakpoint) {
+               if (DBGInt == null) {
+               return;
+               }
+
+               int bpNo = 0;
+
+               try {
+               PHPLineBreakpoint phpLBP;
+
+               if (breakpoint.getModelIdentifier() == PHPDebugCorePlugin.getUniqueIdentifier()) {
+                       phpLBP = (PHPLineBreakpoint) breakpoint;
+
+                       //      bpNo= DBGInt.addBreakpoint(phpLBP.getMarker().getResource().getLocation().toOSString(), phpLBP.getLineNumber());
+                       if (phpLBP.isConditionEnabled ()) {
+                               bpNo = DBGInt.addBreakpoint (MapPath(phpLBP),
+                                                                                        phpLBP.getLineNumber(), 
+                                                                phpLBP.getHitCount(),
+                                                                phpLBP.getCondition ());
+                       }
+                       else {
+                               bpNo = DBGInt.addBreakpoint (MapPath(phpLBP),
+                                                                                        phpLBP.getLineNumber(), 
+                                                                phpLBP.getHitCount(),
+                                                                "");
+                       }
+                       
+                       phpLBP.setDBGBpNo(bpNo);
+               }
+               } catch (IOException e) {
+                   PHPDebugCorePlugin.log(e);
+                   stop();
+               } catch (CoreException e) {
+               PHPDebugCorePlugin.log(e);
+               stop();
+               }
+       }
+
+       /**
+        *
+        */
+       public void removeBreakpoint (IBreakpoint breakpoint) {
+               if (DBGInt == null) {
+               return;
+               }
+
+               try {
+               PHPLineBreakpoint phpLBP;
+
+               if (breakpoint.getModelIdentifier() == PHPDebugCorePlugin.getUniqueIdentifier ()) {
+                       phpLBP = (PHPLineBreakpoint) breakpoint;
+
+                       //      bpNo= DBGInt.addBreakpoint(filename.toOSString(), phpLBP.getLineNumber());
+
+                       DBGInt.removeBreakpoint(MapPath(phpLBP), phpLBP.getLineNumber(), phpLBP.getDBGBpNo());
+               }
+               } catch (IOException e) {
+               PHPDebugCorePlugin.log (e);
+               stop ();
+               } catch (CoreException e) {
+               PHPDebugCorePlugin.log (e);
+               stop ();
+               }
+       }
+
+       /**
+        *
+        */
+       public void phpLoopNotify () {
+               phpLoop.notifyWait ();
+       }
+
+       /**
+        *
+        */
+       public void startPHPLoop () {
+               phpLoop = new PHPLoop ();                                                                       // Create a DBG communication loop object
+
+               phpLoop.start ();                                                                                       // And start the communication loop
+       }
+
+       /**
+        *
+        */
+       public void resume () {
+               try {
+               DBGInt.continueExecution();
+               phpLoop.notifyWait();
+               } catch (IOException e) {
+               PHPeclipsePlugin.log("Debugging session ended.", e);
+               stop();
+               }
+       }
+
+       /**
+        *
+        */
+       public void pause () {
+               try {
+               if (null != DBGInt) {
+                               DBGInt.pauseExecution();
+                       }
+               else {
+                       // TODO Make sure the Suspend action is grayed out
+                       // when DBGInt is null
+               }
+               } catch (IOException e) {
+               PHPDebugCorePlugin.log (e);
+               stop ();
+               }
+       }
+
+       /**
+        *
+        */
+       protected PHPDebugTarget getDebugTarget() {
+               return debugTarget;
+       }
+
+       /**
+        * Is called by the DebuggerRunner
+        * 
+        * @param debugTarget
+        */
+       public void setDebugTarget (PHPDebugTarget debugTarget) {
+               this.debugTarget = debugTarget;
+               debugTarget.setPHPDBGProxy(this);
+       }
+
+       /**
+        * This method is called by a stackframe.
+        * It reads the variables from PHP via DBG
+        *
+        * @param frame The stackframe which wants the variables.
+        * @return      The list of variables for this stackframe.
+        */
+       public Vector readVariables (PHPStackFrame frame) {
+               try {
+               return DBGInt.getVariables (frame);                                             // Get the variables from DBG interface
+               } catch (IOException ioex) {
+               ioex.printStackTrace ();
+               throw new RuntimeException (ioex.getMessage ());
+               } catch (DebugException ex) {
+                   ex.printStackTrace ();
+                   throw new RuntimeException (ex.getMessage ());
+               }
+       }
+
+       /**
+        *
+        * @param frame
+        * @param evalString
+        * @return
+        */
+       public PHPVariable[] eval (PHPStackFrame frame, String evalString) {
+               try {
+               return DBGInt.evalBlock (frame, evalString);
+               //return DBGInt.getVariables(frame);
+               } catch (IOException ioex) {
+               ioex.printStackTrace();
+               throw new RuntimeException(ioex.getMessage());
+               } catch (DebugException ex) {
+               ex.printStackTrace();
+               throw new RuntimeException(ex.getMessage());
+               }
+       }
+
+       public void readStepOverEnd (PHPStackFrame stackFrame) {
+               try {
+               DBGInt.stepOver();
+               phpLoop.notifyWait();
+               } catch (Exception e) {
+               PHPDebugCorePlugin.log(e);
+               }
+       }
+
+       public void readStepReturnEnd (PHPStackFrame stackFrame) {
+               try {
+               DBGInt.stepOut();
+                   phpLoop.notifyWait();
+               } catch (Exception e) {
+               PHPDebugCorePlugin.log(e);
+               }
+       }
+
+       public void readStepIntoEnd (PHPStackFrame stackFrame) {
+               try {
+               DBGInt.stepInto();
+               phpLoop.notifyWait();
+               } catch (Exception e) {
+               PHPDebugCorePlugin.log(e);
+               }
+       }
+
+       /*
+        * public PHPStackFrame[] readFrames(PHPThread thread) { //try { //this.println("th " + thread.getId() + " ; f "); //return new
+        * FramesReader(getMultiReaderStrategy()).readFrames(thread); return null; //} catch (IOException e) { //
+        * PHPDebugCorePlugin.log(e); // return null; //}
+        *  }
+        */
+
+       public void closeSocket() throws IOException {
+               if (socket != null) {
+               socket.close();
+               }
+       }
+
+       public void closeServerSocket() throws IOException {
+               if (server != null) {
+               server.close();
+               }
+       }
+
+       public int getPort() {
+               return port;
+       }
+
+       /**
+        *
+        *
+        */
+       class PHPLoop extends Thread {
+               private boolean shouldStop;
+
+               public PHPLoop () {
+               shouldStop = false;
+               this.setName ("PHPDebuggerLoop");
+               }
+
+               /**
+                *
+                */
+               public synchronized void setShouldStop () {
+                       shouldStop = true;                                                                                      // The run loop should stop
+
+                       try {
+                               // If the loop thread is blocked on the server socket,
+                               // forcibly unblock it to avoid leaking the thread,
+                               // the socket and the port
+                               closeServerSocket ();
+                       } catch (IOException x) {
+                               // Log this as a warning?
+                               PHPDebugCorePlugin.log (x);
+                       }
+               }
+
+               /**
+                *
+                */
+               public synchronized void notifyWait () {
+               notify ();
+               }
+
+               /**
+                *
+                *
+                */
+               public void run () {
+               try {
+                       int                     i;
+                               int                     timeout;
+                       long                    interval        = 200;                                  // Wait 200 ms maximum for a DBG response
+                       boolean                 newconnect      = false;                                //
+                       Socket                  newSocket       = null;
+                       PHPStackFrame[] StackList;
+                       PHPDBGInterface newDBGInt;
+
+                       //                              synchronized (this) {
+                       //                                      wait();
+                       //                              }
+
+                       PHPMainThread = new PHPThread (getDebugTarget (), getPort ());
+                       PHPMainThread.setName ("Thread [main]");
+                       timeout       = 0;
+
+                       //                              while ((getDebugTarget() == null) && (timeout < 100)) {
+                       //                                      sleep(100);
+                       //                                      timeout++;
+                       //                              }
+                       // Be sure debug target is set
+                       //                              PHPMainThread.setDebugTarget(getDebugTarget());
+
+                               getDebugTarget ().addThread (PHPMainThread);
+
+                       //System.out.println("Waiting for breakpoints.");
+
+                       while (!shouldStop) {                                                           // As long as nobody will stop us
+                               newconnect = true;                              // The first time
+
+                               try {
+                                       newSocket = server.accept();                            // Waits until DBG want to connect
+                                       //System.out.println("Accepted! : " + socket.toString());
+                               } catch (SocketTimeoutException e) {
+                                       newconnect = false;                                                     // No one wants to connect (connection already done)
+                               } catch (IOException e) {
+                                       PHPDebugCorePlugin.log(e);
+                                       return;
+                               }
+
+                               if (newconnect) {                                                               // Is it just after a new connection
+                                       if (DBGInt == null) {                                           // Do we have a DBG interface?
+                                       server.setSoTimeout(1);                                 // ???
+                                               }
+
+                                       newDBGInt = new PHPDBGInterface (getReader (newSocket),                 // Create a new interface
+                                                                                                                newSocket.getOutputStream (),
+                                                                                                                thisProxy);
+                                       newDBGInt.waitResponse (1000);                          // Wait for the initial DBG response
+                                       newDBGInt.flushAllPackets ();               // Read and process the DBG response
+
+                                       // Check version and session ID
+                                       if ((DBGInt == null) ||                                 // If we have no interface
+                                               (DBGInt.getSID () == newDBGInt.getSID ())) {// or the new session ID is different to the old one
+                                       DBGInt = newDBGInt;                                                     // Set the new interface as current one
+
+                                       try {
+                                               closeSocket ();
+                                       }
+                                                       catch (IOException e) {
+                                               PHPDebugCorePlugin.log (e);
+                                               shouldStop = true;
+                                       }
+
+                                       socket = newSocket;
+                                       setBreakPoints ();
+                                       DBGInt.continueExecution ();                    // Notify DBG that PHP should continue
+                                       }
+                                               else {
+                                       newDBGInt.continueExecution ();                         // Notify DBG that PHP should continue
+                                       newSocket.close ();
+                                       }
+                               }
+
+                               if (DBGInt.waitResponse (interval)) {                                           // Wait for a DBG response (200 ms)
+                                       DBGInt.flushAllPackets ();                                                              // If we got something, read and process it
+
+                                       if (DBGInt.BPUnderHit != 0) {                                                   // ???
+                                       StackList = DBGInt.getStackList ();                 // Get the stack list from DBGInterface
+
+                                           if (StackList.length > 0) {                         // If there is something in stack list
+                                               for (i = 0; i < StackList.length; i++) {        // For all stack list
+                                                       StackList[i].setThread (PHPMainThread);     // Set the PHPTread for all PHPStackFrames
+
+                                                       if (DBGInt.getModByNo (StackList[i].getModNo ()).equals ("")) {
+                                                               DBGInt.getSourceTree ();
+                                                       }
+
+                                                       StackList[i].setFile (DBGInt.getModByNo (StackList[i].getModNo ()));
+                                               }
+
+                                               PHPMainThread.setStackFrames (StackList);
+                                       }
+
+                                       PHPMainThread.suspend ();                             // Fire debug event
+
+                                           synchronized (this) {
+                                               wait ();
+                                       }
+                                       }
+                               }
+
+                               if (remote) {
+                                       if (PHPMainThread.isTerminated ()) {
+                                       shouldStop = true;
+
+                                           break;                                                // Go for terminating the thread
+                                       }
+                               } else {
+                                       if (PHPMainThread.isTerminated () ||
+                                               getDebugTarget ().getProcess ().isTerminated ()) {
+                                       shouldStop = true;
+
+                                       break;                                                // Go for terminating the thread
+                                       }
+                               }
+                       }
+               } catch (Exception ex) {
+                       PHPDebugCorePlugin.log (ex);
+                       System.out.println (ex);
+               } finally {
+                       try {
+                               getDebugTarget ().terminate ();
+                               closeSocket();
+                               closeServerSocket ();
+                       } catch (IOException e) {
+                               PHPDebugCorePlugin.log (e);
+
+                               return;
+                       }
+
+                       //System.out.println("Socket loop finished.");
+               }
+               }
+       }
+}