/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.catalina.connector; import java.io.IOException; import java.security.AccessController; import java.security.PrivilegedActionException; import java.security.PrivilegedExceptionAction; import javax.servlet.ServletInputStream; import org.apache.catalina.security.SecurityUtil; /** * This class handles reading bytes. * * @author Remy Maucherat * @author Jean-Francois Arcand */ public class CoyoteInputStream extends ServletInputStream { // ----------------------------------------------------- Instance Variables protected InputBuffer ib; // ----------------------------------------------------------- Constructors protected CoyoteInputStream(InputBuffer ib) { this.ib = ib; } // -------------------------------------------------------- Package Methods /** * Clear facade. */ void clear() { ib = null; } // --------------------------------------------------------- Public Methods /** * Prevent cloning the facade. */ @Override protected Object clone() throws CloneNotSupportedException { throw new CloneNotSupportedException(); } // --------------------------------------------- ServletInputStream Methods @Override public int read() throws IOException { if (SecurityUtil.isPackageProtectionEnabled()){ try{ Integer result = AccessController.doPrivileged( new PrivilegedExceptionAction<Integer>(){ @Override public Integer run() throws IOException{ Integer integer = Integer.valueOf(ib.readByte()); return integer; } }); return result.intValue(); } catch(PrivilegedActionException pae){ Exception e = pae.getException(); if (e instanceof IOException){ throw (IOException)e; } else { throw new RuntimeException(e.getMessage(), e); } } } else { return ib.readByte(); } } @Override public int available() throws IOException { if (SecurityUtil.isPackageProtectionEnabled()){ try{ Integer result = AccessController.doPrivileged( new PrivilegedExceptionAction<Integer>(){ @Override public Integer run() throws IOException{ Integer integer = Integer.valueOf(ib.available()); return integer; } }); return result.intValue(); } catch(PrivilegedActionException pae){ Exception e = pae.getException(); if (e instanceof IOException){ throw (IOException)e; } else { throw new RuntimeException(e.getMessage(), e); } } } else { return ib.available(); } } @Override public int read(final byte[] b) throws IOException { if (SecurityUtil.isPackageProtectionEnabled()){ try{ Integer result = AccessController.doPrivileged( new PrivilegedExceptionAction<Integer>(){ @Override public Integer run() throws IOException{ Integer integer = Integer.valueOf(ib.read(b, 0, b.length)); return integer; } }); return result.intValue(); } catch(PrivilegedActionException pae){ Exception e = pae.getException(); if (e instanceof IOException){ throw (IOException)e; } else { throw new RuntimeException(e.getMessage() ,e); } } } else { return ib.read(b, 0, b.length); } } @Override public int read(final byte[] b, final int off, final int len) throws IOException { if (SecurityUtil.isPackageProtectionEnabled()){ try{ Integer result = AccessController.doPrivileged( new PrivilegedExceptionAction<Integer>(){ @Override public Integer run() throws IOException{ Integer integer = Integer.valueOf(ib.read(b, off, len)); return integer; } }); return result.intValue(); } catch(PrivilegedActionException pae){ Exception e = pae.getException(); if (e instanceof IOException){ throw (IOException)e; } else { throw new RuntimeException(e.getMessage(), e); } } } else { return ib.read(b, off, len); } } @Override public int readLine(byte[] b, int off, int len) throws IOException { return super.readLine(b, off, len); } /** * Close the stream * Since we re-cycle, we can't allow the call to super.close() * which would permanently disable us. */ @Override public void close() throws IOException { if (SecurityUtil.isPackageProtectionEnabled()){ try{ AccessController.doPrivileged( new PrivilegedExceptionAction<Void>(){ @Override public Void run() throws IOException{ ib.close(); return null; } }); } catch(PrivilegedActionException pae){ Exception e = pae.getException(); if (e instanceof IOException){ throw (IOException)e; } else { throw new RuntimeException(e.getMessage(), e); } } } else { ib.close(); } } }