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1687 lines (1502 loc) · 51.5 KB
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/*
* 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.jasper;
import java.io.BufferedReader;
import java.io.CharArrayWriter;
import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.Writer;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Stack;
import java.util.StringTokenizer;
import java.util.Vector;
import javax.servlet.jsp.JspFactory;
import javax.servlet.jsp.tagext.TagLibraryInfo;
import org.apache.jasper.compiler.Compiler;
import org.apache.jasper.compiler.JspConfig;
import org.apache.jasper.compiler.JspRuntimeContext;
import org.apache.jasper.compiler.Localizer;
import org.apache.jasper.compiler.TagPluginManager;
import org.apache.jasper.compiler.TldCache;
import org.apache.jasper.runtime.JspFactoryImpl;
import org.apache.jasper.servlet.JspCServletContext;
import org.apache.jasper.servlet.TldScanner;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tools.ant.AntClassLoader;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.util.FileUtils;
import org.xml.sax.SAXException;
/**
* Shell for the jspc compiler. Handles all options associated with the
* command line and creates compilation contexts which it then compiles
* according to the specified options.
*
* This version can process files from a _single_ webapp at once, i.e.
* a single docbase can be specified.
*
* It can be used as an Ant task using:
* <pre>
* <taskdef classname="org.apache.jasper.JspC" name="jasper" >
* <classpath>
* <pathelement location="${java.home}/../lib/tools.jar"/>
* <fileset dir="${ENV.CATALINA_HOME}/lib">
* <include name="*.jar"/>
* </fileset>
* <path refid="myjars"/>
* </classpath>
* </taskdef>
*
* <jasper verbose="0"
* package="my.package"
* uriroot="${webapps.dir}/${webapp.name}"
* webXmlFragment="${build.dir}/generated_web.xml"
* outputDir="${webapp.dir}/${webapp.name}/WEB-INF/src/my/package" />
* </pre>
*
* @author Danno Ferrin
* @author Pierre Delisle
* @author Costin Manolache
* @author Yoav Shapira
*/
public class JspC extends Task implements Options {
static {
// the Validator uses this to access the EL ExpressionFactory
JspFactory.setDefaultFactory(new JspFactoryImpl());
}
public static final String DEFAULT_IE_CLASS_ID =
"clsid:8AD9C840-044E-11D1-B3E9-00805F499D93";
// Logger
private static final Log log = LogFactory.getLog(JspC.class);
protected static final String SWITCH_VERBOSE = "-v";
protected static final String SWITCH_HELP = "-help";
protected static final String SWITCH_OUTPUT_DIR = "-d";
protected static final String SWITCH_PACKAGE_NAME = "-p";
protected static final String SWITCH_CACHE = "-cache";
protected static final String SWITCH_CLASS_NAME = "-c";
protected static final String SWITCH_FULL_STOP = "--";
protected static final String SWITCH_COMPILE = "-compile";
protected static final String SWITCH_SOURCE = "-source";
protected static final String SWITCH_TARGET = "-target";
protected static final String SWITCH_URI_BASE = "-uribase";
protected static final String SWITCH_URI_ROOT = "-uriroot";
protected static final String SWITCH_FILE_WEBAPP = "-webapp";
protected static final String SWITCH_WEBAPP_INC = "-webinc";
protected static final String SWITCH_WEBAPP_XML = "-webxml";
protected static final String SWITCH_WEBAPP_XML_ENCODING = "-webxmlencoding";
protected static final String SWITCH_ADD_WEBAPP_XML_MAPPINGS = "-addwebxmlmappings";
protected static final String SWITCH_MAPPED = "-mapped";
protected static final String SWITCH_XPOWERED_BY = "-xpoweredBy";
protected static final String SWITCH_TRIM_SPACES = "-trimSpaces";
protected static final String SWITCH_CLASSPATH = "-classpath";
protected static final String SWITCH_DIE = "-die";
protected static final String SWITCH_POOLING = "-poolingEnabled";
protected static final String SWITCH_ENCODING = "-javaEncoding";
protected static final String SWITCH_SMAP = "-smap";
protected static final String SWITCH_DUMP_SMAP = "-dumpsmap";
protected static final String SWITCH_VALIDATE_TLD = "-validateTld";
protected static final String SWITCH_VALIDATE_XML = "-validateXml";
protected static final String SWITCH_BLOCK_EXTERNAL = "-blockExternal";
protected static final String SWITCH_NO_BLOCK_EXTERNAL = "-no-blockExternal";
protected static final String SHOW_SUCCESS ="-s";
protected static final String LIST_ERRORS = "-l";
protected static final int INC_WEBXML = 10;
protected static final int ALL_WEBXML = 20;
protected static final int DEFAULT_DIE_LEVEL = 1;
protected static final int NO_DIE_LEVEL = 0;
protected static final Set<String> insertBefore = new HashSet<>();
static {
insertBefore.add("</web-app>");
insertBefore.add("<servlet-mapping>");
insertBefore.add("<session-config>");
insertBefore.add("<mime-mapping>");
insertBefore.add("<welcome-file-list>");
insertBefore.add("<error-page>");
insertBefore.add("<taglib>");
insertBefore.add("<resource-env-ref>");
insertBefore.add("<resource-ref>");
insertBefore.add("<security-constraint>");
insertBefore.add("<login-config>");
insertBefore.add("<security-role>");
insertBefore.add("<env-entry>");
insertBefore.add("<ejb-ref>");
insertBefore.add("<ejb-local-ref>");
}
protected String classPath = null;
protected ClassLoader loader = null;
protected boolean trimSpaces = false;
protected boolean genStringAsCharArray = false;
protected boolean validateTld;
protected boolean validateXml;
protected boolean blockExternal = true;
protected boolean xpoweredBy;
protected boolean mappedFile = false;
protected boolean poolingEnabled = true;
protected File scratchDir;
protected String ieClassId = DEFAULT_IE_CLASS_ID;
protected String targetPackage;
protected String targetClassName;
protected String uriBase;
protected String uriRoot;
protected int dieLevel;
protected boolean helpNeeded = false;
protected boolean compile = false;
protected boolean smapSuppressed = true;
protected boolean smapDumped = false;
protected boolean caching = true;
protected final Map<String, TagLibraryInfo> cache = new HashMap<>();
protected String compiler = null;
protected String compilerTargetVM = "1.8";
protected String compilerSourceVM = "1.8";
protected boolean classDebugInfo = true;
/**
* Throw an exception if there's a compilation error, or swallow it.
* Default is true to preserve old behavior.
*/
protected boolean failOnError = true;
/**
* The file extensions to be handled as JSP files.
* Default list is .jsp and .jspx.
*/
protected List<String> extensions;
/**
* The pages.
*/
protected final List<String> pages = new Vector<>();
/**
* Needs better documentation, this data member does.
* True by default.
*/
protected boolean errorOnUseBeanInvalidClassAttribute = true;
/**
* The java file encoding. Default
* is UTF-8. Added per bugzilla 19622.
*/
protected String javaEncoding = "UTF-8";
// Generation of web.xml fragments
protected String webxmlFile;
protected int webxmlLevel;
protected String webxmlEncoding;
protected boolean addWebXmlMappings = false;
protected Writer mapout;
protected CharArrayWriter servletout;
protected CharArrayWriter mappingout;
/**
* The servlet context.
*/
protected JspCServletContext context;
/**
* The runtime context.
* Maintain a dummy JspRuntimeContext for compiling tag files.
*/
protected JspRuntimeContext rctxt;
/**
* Cache for the TLD locations
*/
protected TldCache tldCache = null;
protected JspConfig jspConfig = null;
protected TagPluginManager tagPluginManager = null;
protected TldScanner scanner = null;
protected boolean verbose = false;
protected boolean listErrors = false;
protected boolean showSuccess = false;
protected int argPos;
protected boolean fullstop = false;
protected String args[];
public static void main(String arg[]) {
if (arg.length == 0) {
System.out.println(Localizer.getMessage("jspc.usage"));
} else {
JspC jspc = new JspC();
try {
jspc.setArgs(arg);
if (jspc.helpNeeded) {
System.out.println(Localizer.getMessage("jspc.usage"));
} else {
jspc.execute();
}
} catch (JasperException je) {
System.err.println(je);
if (jspc.dieLevel != NO_DIE_LEVEL) {
System.exit(jspc.dieLevel);
}
} catch (BuildException je) {
System.err.println(je);
if (jspc.dieLevel != NO_DIE_LEVEL) {
System.exit(jspc.dieLevel);
}
}
}
}
/**
* Apply command-line arguments.
*
* @param arg
* The arguments
*/
public void setArgs(String[] arg) throws JasperException {
args = arg;
String tok;
dieLevel = NO_DIE_LEVEL;
while ((tok = nextArg()) != null) {
if (tok.equals(SWITCH_VERBOSE)) {
verbose = true;
showSuccess = true;
listErrors = true;
} else if (tok.equals(SWITCH_OUTPUT_DIR)) {
tok = nextArg();
setOutputDir( tok );
} else if (tok.equals(SWITCH_PACKAGE_NAME)) {
targetPackage = nextArg();
} else if (tok.equals(SWITCH_COMPILE)) {
compile=true;
} else if (tok.equals(SWITCH_CLASS_NAME)) {
targetClassName = nextArg();
} else if (tok.equals(SWITCH_URI_BASE)) {
uriBase=nextArg();
} else if (tok.equals(SWITCH_URI_ROOT)) {
setUriroot( nextArg());
} else if (tok.equals(SWITCH_FILE_WEBAPP)) {
setUriroot( nextArg());
} else if ( tok.equals( SHOW_SUCCESS ) ) {
showSuccess = true;
} else if ( tok.equals( LIST_ERRORS ) ) {
listErrors = true;
} else if (tok.equals(SWITCH_WEBAPP_INC)) {
webxmlFile = nextArg();
if (webxmlFile != null) {
webxmlLevel = INC_WEBXML;
}
} else if (tok.equals(SWITCH_WEBAPP_XML)) {
webxmlFile = nextArg();
if (webxmlFile != null) {
webxmlLevel = ALL_WEBXML;
}
} else if (tok.equals(SWITCH_WEBAPP_XML_ENCODING)) {
setWebXmlEncoding(nextArg());
} else if (tok.equals(SWITCH_ADD_WEBAPP_XML_MAPPINGS)) {
setAddWebXmlMappings(true);
} else if (tok.equals(SWITCH_MAPPED)) {
mappedFile = true;
} else if (tok.equals(SWITCH_XPOWERED_BY)) {
xpoweredBy = true;
} else if (tok.equals(SWITCH_TRIM_SPACES)) {
setTrimSpaces(true);
} else if (tok.equals(SWITCH_CACHE)) {
tok = nextArg();
if ("false".equals(tok)) {
caching = false;
} else {
caching = true;
}
} else if (tok.equals(SWITCH_CLASSPATH)) {
setClassPath(nextArg());
} else if (tok.startsWith(SWITCH_DIE)) {
try {
dieLevel = Integer.parseInt(
tok.substring(SWITCH_DIE.length()));
} catch (NumberFormatException nfe) {
dieLevel = DEFAULT_DIE_LEVEL;
}
} else if (tok.equals(SWITCH_HELP)) {
helpNeeded = true;
} else if (tok.equals(SWITCH_POOLING)) {
tok = nextArg();
if ("false".equals(tok)) {
poolingEnabled = false;
} else {
poolingEnabled = true;
}
} else if (tok.equals(SWITCH_ENCODING)) {
setJavaEncoding(nextArg());
} else if (tok.equals(SWITCH_SOURCE)) {
setCompilerSourceVM(nextArg());
} else if (tok.equals(SWITCH_TARGET)) {
setCompilerTargetVM(nextArg());
} else if (tok.equals(SWITCH_SMAP)) {
smapSuppressed = false;
} else if (tok.equals(SWITCH_DUMP_SMAP)) {
smapDumped = true;
} else if (tok.equals(SWITCH_VALIDATE_TLD)) {
setValidateTld(true);
} else if (tok.equals(SWITCH_VALIDATE_XML)) {
setValidateXml(true);
} else if (tok.equals(SWITCH_BLOCK_EXTERNAL)) {
setBlockExternal(true);
} else if (tok.equals(SWITCH_NO_BLOCK_EXTERNAL)) {
setBlockExternal(false);
} else {
if (tok.startsWith("-")) {
throw new JasperException("Unrecognized option: " + tok +
". Use -help for help.");
}
if (!fullstop) {
argPos--;
}
// Start treating the rest as JSP Pages
break;
}
}
// Add all extra arguments to the list of files
while( true ) {
String file = nextFile();
if( file==null ) {
break;
}
pages.add( file );
}
}
/**
* In JspC this always returns <code>true</code>.
* {@inheritDoc}
*/
@Override
public boolean getKeepGenerated() {
// isn't this why we are running jspc?
return true;
}
/**
* {@inheritDoc}
*/
@Override
public boolean getTrimSpaces() {
return trimSpaces;
}
/**
* Sets the option to trim white spaces between directives or actions.
*/
public void setTrimSpaces(boolean ts) {
this.trimSpaces = ts;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isPoolingEnabled() {
return poolingEnabled;
}
/**
* Sets the option to enable the tag handler pooling.
*/
public void setPoolingEnabled(boolean poolingEnabled) {
this.poolingEnabled = poolingEnabled;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isXpoweredBy() {
return xpoweredBy;
}
/**
* Sets the option to enable generation of X-Powered-By response header.
*/
public void setXpoweredBy(boolean xpoweredBy) {
this.xpoweredBy = xpoweredBy;
}
/**
* In JspC this always returns <code>true</code>.
* {@inheritDoc}
*/
@Override
public boolean getDisplaySourceFragment() {
return true;
}
@Override
public int getMaxLoadedJsps() {
return -1;
}
@Override
public int getJspIdleTimeout() {
return -1;
}
/**
* {@inheritDoc}
*/
@Override
public boolean getErrorOnUseBeanInvalidClassAttribute() {
return errorOnUseBeanInvalidClassAttribute;
}
/**
* Sets the option to issue a compilation error if the class attribute
* specified in useBean action is invalid.
*/
public void setErrorOnUseBeanInvalidClassAttribute(boolean b) {
errorOnUseBeanInvalidClassAttribute = b;
}
/**
* {@inheritDoc}
*/
@Override
public boolean getMappedFile() {
return mappedFile;
}
public void setMappedFile(boolean b) {
mappedFile = b;
}
/**
* Sets the option to include debug information in compiled class.
*/
public void setClassDebugInfo( boolean b ) {
classDebugInfo=b;
}
/**
* {@inheritDoc}
*/
@Override
public boolean getClassDebugInfo() {
// compile with debug info
return classDebugInfo;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isCaching() {
return caching;
}
/**
* Sets the option to enable caching.
*
* @see Options#isCaching()
*/
public void setCaching(boolean caching) {
this.caching = caching;
}
/**
* {@inheritDoc}
*/
@Override
public Map<String, TagLibraryInfo> getCache() {
return cache;
}
/**
* In JspC this always returns <code>0</code>.
* {@inheritDoc}
*/
@Override
public int getCheckInterval() {
return 0;
}
/**
* In JspC this always returns <code>0</code>.
* {@inheritDoc}
*/
@Override
public int getModificationTestInterval() {
return 0;
}
/**
* In JspC this always returns <code>false</code>.
* {@inheritDoc}
*/
@Override
public boolean getRecompileOnFail() {
return false;
}
/**
* In JspC this always returns <code>false</code>.
* {@inheritDoc}
*/
@Override
public boolean getDevelopment() {
return false;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isSmapSuppressed() {
return smapSuppressed;
}
/**
* Sets smapSuppressed flag.
*/
public void setSmapSuppressed(boolean smapSuppressed) {
this.smapSuppressed = smapSuppressed;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isSmapDumped() {
return smapDumped;
}
/**
* Sets smapDumped flag.
*
* @see Options#isSmapDumped()
*/
public void setSmapDumped(boolean smapDumped) {
this.smapDumped = smapDumped;
}
/**
* Determines whether text strings are to be generated as char arrays,
* which improves performance in some cases.
*
* @param genStringAsCharArray true if text strings are to be generated as
* char arrays, false otherwise
*/
public void setGenStringAsCharArray(boolean genStringAsCharArray) {
this.genStringAsCharArray = genStringAsCharArray;
}
/**
* {@inheritDoc}
*/
@Override
public boolean genStringAsCharArray() {
return genStringAsCharArray;
}
/**
* Sets the class-id value to be sent to Internet Explorer when using
* <jsp:plugin> tags.
*
* @param ieClassId
* Class-id value
*/
public void setIeClassId(String ieClassId) {
this.ieClassId = ieClassId;
}
/**
* {@inheritDoc}
*/
@Override
public String getIeClassId() {
return ieClassId;
}
/**
* {@inheritDoc}
*/
@Override
public File getScratchDir() {
return scratchDir;
}
/**
* {@inheritDoc}
*/
@Override
public String getCompiler() {
return compiler;
}
/**
* Sets the option to determine what compiler to use.
*
* @see Options#getCompiler()
*/
public void setCompiler(String c) {
compiler=c;
}
/**
* {@inheritDoc}
*/
@Override
public String getCompilerClassName() {
return null;
}
/**
* {@inheritDoc}
*/
@Override
public String getCompilerTargetVM() {
return compilerTargetVM;
}
/**
* Sets the compiler target VM.
*
* @see Options#getCompilerTargetVM()
*/
public void setCompilerTargetVM(String vm) {
compilerTargetVM = vm;
}
/**
* {@inheritDoc}
*/
@Override
public String getCompilerSourceVM() {
return compilerSourceVM;
}
/**
* Sets the compiler source VM.
*
* @see Options#getCompilerSourceVM()
*/
public void setCompilerSourceVM(String vm) {
compilerSourceVM = vm;
}
/**
* {@inheritDoc}
*/
@Override
public TldCache getTldCache() {
return tldCache;
}
/**
* Returns the encoding to use for
* java files. The default is UTF-8.
*
* @return String The encoding
*/
@Override
public String getJavaEncoding() {
return javaEncoding;
}
/**
* Sets the encoding to use for
* java files.
*
* @param encodingName The name, e.g. "UTF-8"
*/
public void setJavaEncoding(String encodingName) {
javaEncoding = encodingName;
}
/**
* {@inheritDoc}
*/
@Override
public boolean getFork() {
return false;
}
/**
* {@inheritDoc}
*/
@Override
public String getClassPath() {
if( classPath != null )
return classPath;
return System.getProperty("java.class.path");
}
/**
* Sets the classpath used while compiling the servlets generated from JSP
* files
*/
public void setClassPath(String s) {
classPath=s;
}
/**
* Returns the list of file extensions
* that are treated as JSP files.
*
* @return The list of extensions
*/
public List<String> getExtensions() {
return extensions;
}
/**
* Adds the given file extension to the
* list of extensions handled as JSP files.
*
* @param extension The extension to add, e.g. "myjsp"
*/
protected void addExtension(final String extension) {
if(extension != null) {
if(extensions == null) {
extensions = new Vector<>();
}
extensions.add(extension);
}
}
/**
* Base dir for the webapp. Used to generate class names and resolve
* includes.
*/
public void setUriroot( String s ) {
if (s == null) {
uriRoot = null;
return;
}
try {
uriRoot = resolveFile(s).getCanonicalPath();
} catch( Exception ex ) {
uriRoot = s;
}
}
/**
* Parses comma-separated list of JSP files to be processed. If the argument
* is null, nothing is done.
*
* <p>Each file is interpreted relative to uriroot, unless it is absolute,
* in which case it must start with uriroot.</p>
*
* @param jspFiles Comma-separated list of JSP files to be processed
*/
public void setJspFiles(final String jspFiles) {
if(jspFiles == null) {
return;
}
StringTokenizer tok = new StringTokenizer(jspFiles, ",");
while (tok.hasMoreTokens()) {
pages.add(tok.nextToken());
}
}
/**
* Sets the compile flag.
*
* @param b Flag value
*/
public void setCompile( final boolean b ) {
compile = b;
}
/**
* Sets the verbosity level. The actual number doesn't
* matter: if it's greater than zero, the verbose flag will
* be true.
*
* @param level Positive means verbose
*/
public void setVerbose( final int level ) {
if (level > 0) {
verbose = true;
showSuccess = true;
listErrors = true;
}
}
public void setValidateTld( boolean b ) {
this.validateTld = b;
}
public boolean isValidateTld() {
return validateTld;
}
public void setValidateXml( boolean b ) {
this.validateXml = b;
}
public boolean isValidateXml() {
return validateXml;
}
public void setBlockExternal( boolean b ) {
this.blockExternal = b;
}
public boolean isBlockExternal() {
return blockExternal;
}
public void setListErrors( boolean b ) {
listErrors = b;
}
public void setOutputDir( String s ) {
if( s!= null ) {
scratchDir = resolveFile(s).getAbsoluteFile();
} else {
scratchDir=null;
}
}
/**
* Sets the package name to be used for the generated servlet classes.
*/
public void setPackage( String p ) {
targetPackage=p;
}
/**
* Class name of the generated file ( without package ).
* Can only be used if a single file is converted.
* XXX Do we need this feature ?
*/
public void setClassName( String p ) {
targetClassName=p;
}
/**
* File where we generate a web.xml fragment with the class definitions.
*/
public void setWebXmlFragment( String s ) {
webxmlFile=resolveFile(s).getAbsolutePath();
webxmlLevel=INC_WEBXML;
}
/**
* File where we generate a complete web.xml with the class definitions.
*/
public void setWebXml( String s ) {
webxmlFile=resolveFile(s).getAbsolutePath();
webxmlLevel=ALL_WEBXML;
}
/**
* Sets the encoding to be used to read and write web.xml files.
*
* <p>
* If not specified, defaults to the platform default encoding.
* </p>
*
* @param encoding
* Encoding, e.g. "UTF-8".
*/
public void setWebXmlEncoding(String encoding) {
webxmlEncoding = encoding;
}
/**
* Sets the option to merge generated web.xml fragment into the
* WEB-INF/web.xml file of the web application that we were processing.
*
* @param b
* <code>true</code> to merge the fragment into the existing
* web.xml file of the processed web application
* ({uriroot}/WEB-INF/web.xml), <code>false</code> to keep the
* generated web.xml fragment
*/
public void setAddWebXmlMappings(boolean b) {
addWebXmlMappings = b;
}
/**
* Sets the option that throws an exception in case of a compilation error.
*/
public void setFailOnError(final boolean b) {
failOnError = b;
}
/**
* Returns true if an exception will be thrown in case of a compilation
* error.
*/
public boolean getFailOnError() {
return failOnError;
}
/**
* {@inheritDoc}
*/
@Override
public JspConfig getJspConfig() {
return jspConfig;
}
/**
* {@inheritDoc}
*/
@Override
public TagPluginManager getTagPluginManager() {
return tagPluginManager;
}
/**
* Adds servlet declaration and mapping for the JSP page servlet to the