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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2016 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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*
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* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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 org.apache.catalina.LogFacade;
import org.apache.catalina.security.SecurityUtil;
import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import java.io.IOException;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.ResourceBundle;
/**
* This class handles reading bytes.
*
* @author Remy Maucherat
* @author Jean-Francois Arcand
*/
public class CoyoteInputStream
extends ServletInputStream {
private static final ResourceBundle rb = LogFacade.getLogger().getResourceBundle();
// ----------------------------------------------------- Instance Variables
protected InputBuffer ib;
// ----------------------------------------------------------- Constructors
public CoyoteInputStream(InputBuffer ib) {
this.ib = ib;
}
// --------------------------------------------------------- Public Methods
/**
* Prevent cloning the facade.
*/
protected Object clone()
throws CloneNotSupportedException {
throw new CloneNotSupportedException();
}
// -------------------------------------------------------- Package Methods
/**
* Clear facade.
*/
void clear() {
ib = null;
}
// --------------------------------------------- ServletInputStream Methods
public int read()
throws IOException {
// Disallow operation if the object has gone out of scope
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
if (SecurityUtil.isPackageProtectionEnabled()){
try{
Integer result =
AccessController.doPrivileged(
new PrivilegedExceptionAction(){
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());
}
}
} else {
return ib.readByte();
}
}
public int available() throws IOException {
// Disallow operation if the object has gone out of scope
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
if (SecurityUtil.isPackageProtectionEnabled()){
try{
Integer result =
AccessController.doPrivileged(
new PrivilegedExceptionAction(){
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());
}
}
} else {
return ib.available();
}
}
public int read(final byte[] b) throws IOException {
// Disallow operation if the object has gone out of scope
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
if (SecurityUtil.isPackageProtectionEnabled()){
try{
Integer result =
AccessController.doPrivileged(
new PrivilegedExceptionAction(){
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());
}
}
} else {
return ib.read(b, 0, b.length);
}
}
public int read(final byte[] b, final int off, final int len)
throws IOException {
// Disallow operation if the object has gone out of scope
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
if (SecurityUtil.isPackageProtectionEnabled()){
try{
Integer result =
AccessController.doPrivileged(
new PrivilegedExceptionAction(){
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());
}
}
} else {
return ib.read(b, off, len);
}
}
public int readLine(byte[] b, int off, int len) throws IOException {
// Disallow operation if the object has gone out of scope
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
return super.readLine(b, off, len);
}
public boolean isFinished() {
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
return ib.isFinished();
}
public boolean isReady() {
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
return ib.isReady();
}
public void setReadListener(ReadListener readListener) {
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
if (readListener == null) {
throw new NullPointerException(rb.getString(LogFacade.NULL_READ_LISTENER_EXCEPTION));
}
ib.setReadListener(readListener);
}
/**
* Close the stream
* Since we re-cycle, we can't allow the call to super.close()
* which would permanently disable us.
*/
public void close() throws IOException {
// Disallow operation if the object has gone out of scope
if (ib == null) {
throw new IllegalStateException(rb.getString(LogFacade.OBJECT_INVALID_SCOPE_EXCEPTION));
}
if (SecurityUtil.isPackageProtectionEnabled()){
try{
AccessController.doPrivileged(
new PrivilegedExceptionAction(){
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());
}
}
} else {
ib.close();
}
}
}