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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.compiler;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Deque;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import jakarta.el.ExpressionFactory;
import jakarta.servlet.jsp.tagext.TagLibraryInfo;
import org.apache.jasper.Constants;
import org.apache.jasper.JasperException;
import org.apache.jasper.JspCompilationContext;
/**
* A repository for various info about the translation unit under compilation.
*
* @author Kin-man Chung
*/
class PageInfo {
private final List imports;
private final Map dependants;
private final BeanRepository beanRepository;
private final Set varInfoNames;
private final HashMap taglibsMap;
private final HashMap jspPrefixMapper;
private final HashMap> xmlPrefixMapper;
private final HashMap nonCustomTagPrefixMap;
private final String jspFile;
private static final String defaultLanguage = "java";
private String language;
private final String defaultExtends;
private String xtends;
private String contentType = null;
private String session;
private boolean isSession = true;
private String bufferValue;
private int buffer = 8*1024;
private String autoFlush;
private boolean isAutoFlush = true;
private String isErrorPageValue;
private boolean isErrorPage = false;
private String errorPage = null;
private String info;
private boolean scriptless = false;
private boolean scriptingInvalid = false;
private String isELIgnoredValue;
private boolean isELIgnored = false;
// JSP 2.1
private String deferredSyntaxAllowedAsLiteralValue;
private boolean deferredSyntaxAllowedAsLiteral = false;
private final ExpressionFactory expressionFactory =
ExpressionFactory.newInstance();
private String trimDirectiveWhitespacesValue;
private boolean trimDirectiveWhitespaces = false;
private String omitXmlDecl = null;
private String doctypeName = null;
private String doctypePublic = null;
private String doctypeSystem = null;
private boolean isJspPrefixHijacked;
// Set of all element and attribute prefixes used in this translation unit
private final HashSet prefixes;
private boolean hasJspRoot = false;
private Collection includePrelude;
private Collection includeCoda;
private final List pluginDcls; // Id's for tagplugin declarations
// JSP 2.2
private boolean errorOnUndeclaredNamespace = false;
// JSP 3.1
private String errorOnELNotFoundValue;
private boolean errorOnELNotFound = false;
private final boolean isTagFile;
PageInfo(BeanRepository beanRepository, JspCompilationContext ctxt) {
isTagFile = ctxt.isTagFile();
jspFile = ctxt.getJspFile();
defaultExtends = ctxt.getOptions().getJspServletBase();
this.beanRepository = beanRepository;
this.varInfoNames = new HashSet<>();
this.taglibsMap = new HashMap<>();
this.jspPrefixMapper = new HashMap<>();
this.xmlPrefixMapper = new HashMap<>();
this.nonCustomTagPrefixMap = new HashMap<>();
this.dependants = new HashMap<>();
this.includePrelude = new ArrayList<>();
this.includeCoda = new ArrayList<>();
this.pluginDcls = new ArrayList<>();
this.prefixes = new HashSet<>();
// Enter standard imports
this.imports = new ArrayList<>(Constants.STANDARD_IMPORTS);
}
public boolean isTagFile() {
return isTagFile;
}
/**
* Check if the plugin ID has been previously declared. Make a note
* that this Id is now declared.
*
* @param id The plugin ID to check
*
* @return true if Id has been declared.
*/
public boolean isPluginDeclared(String id) {
if (pluginDcls.contains(id)) {
return true;
}
pluginDcls.add(id);
return false;
}
public void addImports(List imports) {
this.imports.addAll(imports);
}
public void addImport(String imp) {
this.imports.add(imp);
}
public List getImports() {
return imports;
}
public String getJspFile() {
return jspFile;
}
public void addDependant(String d, Long lastModified) {
if (!dependants.containsKey(d) && !jspFile.equals(d)) {
dependants.put(d, lastModified);
}
}
public Map getDependants() {
return dependants;
}
public BeanRepository getBeanRepository() {
return beanRepository;
}
public void setScriptless(boolean s) {
scriptless = s;
}
public boolean isScriptless() {
return scriptless;
}
public void setScriptingInvalid(boolean s) {
scriptingInvalid = s;
}
public boolean isScriptingInvalid() {
return scriptingInvalid;
}
public Collection getIncludePrelude() {
return includePrelude;
}
public void setIncludePrelude(Collection prelude) {
includePrelude = prelude;
}
public Collection getIncludeCoda() {
return includeCoda;
}
public void setIncludeCoda(Collection coda) {
includeCoda = coda;
}
public void setHasJspRoot(boolean s) {
hasJspRoot = s;
}
public boolean hasJspRoot() {
return hasJspRoot;
}
public String getOmitXmlDecl() {
return omitXmlDecl;
}
public void setOmitXmlDecl(String omit) {
omitXmlDecl = omit;
}
public String getDoctypeName() {
return doctypeName;
}
public void setDoctypeName(String doctypeName) {
this.doctypeName = doctypeName;
}
public String getDoctypeSystem() {
return doctypeSystem;
}
public void setDoctypeSystem(String doctypeSystem) {
this.doctypeSystem = doctypeSystem;
}
public String getDoctypePublic() {
return doctypePublic;
}
public void setDoctypePublic(String doctypePublic) {
this.doctypePublic = doctypePublic;
}
/* Tag library and XML namespace management methods */
public void setIsJspPrefixHijacked(boolean isHijacked) {
isJspPrefixHijacked = isHijacked;
}
public boolean isJspPrefixHijacked() {
return isJspPrefixHijacked;
}
/*
* Adds the given prefix to the set of prefixes of this translation unit.
*
* @param prefix The prefix to add
*/
public void addPrefix(String prefix) {
prefixes.add(prefix);
}
/*
* Checks to see if this translation unit contains the given prefix.
*
* @param prefix The prefix to check
*
* @return true if this translation unit contains the given prefix, false
* otherwise
*/
public boolean containsPrefix(String prefix) {
return prefixes.contains(prefix);
}
/*
* Maps the given URI to the given tag library.
*
* @param uri The URI to map
* @param info The tag library to be associated with the given URI
*/
public void addTaglib(String uri, TagLibraryInfo info) {
taglibsMap.put(uri, info);
}
/*
* Gets the tag library corresponding to the given URI.
*
* @return Tag library corresponding to the given URI
*/
public TagLibraryInfo getTaglib(String uri) {
return taglibsMap.get(uri);
}
/*
* Gets the collection of tag libraries that are associated with a URI
*
* @return Collection of tag libraries that are associated with a URI
*/
public Collection getTaglibs() {
return taglibsMap.values();
}
/*
* Checks to see if the given URI is mapped to a tag library.
*
* @param uri The URI to map
*
* @return true if the given URI is mapped to a tag library, false
* otherwise
*/
public boolean hasTaglib(String uri) {
return taglibsMap.containsKey(uri);
}
/*
* Maps the given prefix to the given URI.
*
* @param prefix The prefix to map
* @param uri The URI to be associated with the given prefix
*/
public void addPrefixMapping(String prefix, String uri) {
jspPrefixMapper.put(prefix, uri);
}
/*
* Pushes the given URI onto the stack of URIs to which the given prefix
* is mapped.
*
* @param prefix The prefix whose stack of URIs is to be pushed
* @param uri The URI to be pushed onto the stack
*/
public void pushPrefixMapping(String prefix, String uri) {
// Must be LinkedList as it needs to accept nulls
xmlPrefixMapper.computeIfAbsent(prefix, k -> new LinkedList<>()).addFirst(uri);
}
/*
* Removes the URI at the top of the stack of URIs to which the given
* prefix is mapped.
*
* @param prefix The prefix whose stack of URIs is to be popped
*/
public void popPrefixMapping(String prefix) {
Deque stack = xmlPrefixMapper.get(prefix);
stack.removeFirst();
}
/*
* Returns the URI to which the given prefix maps.
*
* @param prefix The prefix whose URI is sought
*
* @return The URI to which the given prefix maps
*/
public String getURI(String prefix) {
String uri = null;
Deque stack = xmlPrefixMapper.get(prefix);
if (stack == null || stack.size() == 0) {
uri = jspPrefixMapper.get(prefix);
} else {
uri = stack.getFirst();
}
return uri;
}
/* Page/Tag directive attributes */
/*
* language
*/
public void setLanguage(String value, Node n, ErrorDispatcher err,
boolean pagedir)
throws JasperException {
if (!"java".equalsIgnoreCase(value)) {
if (pagedir) {
err.jspError(n, "jsp.error.page.language.nonjava");
} else {
err.jspError(n, "jsp.error.tag.language.nonjava");
}
}
language = value;
}
public String getLanguage(boolean useDefault) {
return (language == null && useDefault ? defaultLanguage : language);
}
/*
* extends
*/
public void setExtends(String value) {
xtends = value;
}
/**
* Gets the value of the 'extends' page directive attribute.
*
* @param useDefault TRUE if the default
* (org.apache.jasper.runtime.HttpJspBase) should be returned if this
* attribute has not been set, FALSE otherwise
*
* @return The value of the 'extends' page directive attribute, or the
* default (org.apache.jasper.runtime.HttpJspBase) if this attribute has
* not been set and useDefault is TRUE
*/
public String getExtends(boolean useDefault) {
return (xtends == null && useDefault ? defaultExtends : xtends);
}
/**
* Gets the value of the 'extends' page directive attribute.
*
* @return The value of the 'extends' page directive attribute, or the
* default (org.apache.jasper.runtime.HttpJspBase) if this attribute has
* not been set
*/
public String getExtends() {
return getExtends(true);
}
/*
* contentType
*/
public void setContentType(String value) {
contentType = value;
}
public String getContentType() {
return contentType;
}
/*
* buffer
*/
public void setBufferValue(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("none".equalsIgnoreCase(value)) {
buffer = 0;
} else {
if (value == null || !value.endsWith("kb")) {
if (n == null) {
err.jspError("jsp.error.page.invalid.buffer");
} else {
err.jspError(n, "jsp.error.page.invalid.buffer");
}
}
try {
@SuppressWarnings("null") // value can't be null here
int k = Integer.parseInt(value.substring(0, value.length()-2));
buffer = k * 1024;
} catch (NumberFormatException e) {
if (n == null) {
err.jspError("jsp.error.page.invalid.buffer");
} else {
err.jspError(n, "jsp.error.page.invalid.buffer");
}
}
}
bufferValue = value;
}
public String getBufferValue() {
return bufferValue;
}
public int getBuffer() {
return buffer;
}
/*
* session
*/
public void setSession(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("true".equalsIgnoreCase(value)) {
isSession = true;
} else if ("false".equalsIgnoreCase(value)) {
isSession = false;
} else {
err.jspError(n, "jsp.error.page.invalid.session");
}
session = value;
}
public String getSession() {
return session;
}
public boolean isSession() {
return isSession;
}
/*
* autoFlush
*/
public void setAutoFlush(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("true".equalsIgnoreCase(value)) {
isAutoFlush = true;
} else if ("false".equalsIgnoreCase(value)) {
isAutoFlush = false;
} else {
err.jspError(n, "jsp.error.autoFlush.invalid");
}
autoFlush = value;
}
public String getAutoFlush() {
return autoFlush;
}
public boolean isAutoFlush() {
return isAutoFlush;
}
/*
* info
*/
public void setInfo(String value) {
info = value;
}
public String getInfo() {
return info;
}
/*
* errorPage
*/
public void setErrorPage(String value) {
errorPage = value;
}
public String getErrorPage() {
return errorPage;
}
/*
* isErrorPage
*/
public void setIsErrorPage(String value, Node n, ErrorDispatcher err)
throws JasperException {
if ("true".equalsIgnoreCase(value)) {
isErrorPage = true;
} else if ("false".equalsIgnoreCase(value)) {
isErrorPage = false;
} else {
err.jspError(n, "jsp.error.page.invalid.iserrorpage");
}
isErrorPageValue = value;
}
public String getIsErrorPage() {
return isErrorPageValue;
}
public boolean isErrorPage() {
return isErrorPage;
}
/*
* isELIgnored
*/
public void setIsELIgnored(String value, Node n, ErrorDispatcher err,
boolean pagedir)
throws JasperException {
if ("true".equalsIgnoreCase(value)) {
isELIgnored = true;
} else if ("false".equalsIgnoreCase(value)) {
isELIgnored = false;
} else {
if (pagedir) {
err.jspError(n, "jsp.error.page.invalid.iselignored");
} else {
err.jspError(n, "jsp.error.tag.invalid.iselignored");
}
}
isELIgnoredValue = value;
}
/*
* errorOnELNotFound
*/
public void setErrorOnELNotFound(String value, Node n, ErrorDispatcher err,
boolean pagedir)
throws JasperException {
if ("true".equalsIgnoreCase(value)) {
errorOnELNotFound = true;
} else if ("false".equalsIgnoreCase(value)) {
errorOnELNotFound = false;
} else {
if (pagedir) {
err.jspError(n, "jsp.error.page.invalid.errorOnELNotFound");
} else {
err.jspError(n, "jsp.error.tag.invalid.errorOnELNotFound");
}
}
errorOnELNotFoundValue = value;
}
/*
* deferredSyntaxAllowedAsLiteral
*/
public void setDeferredSyntaxAllowedAsLiteral(String value, Node n, ErrorDispatcher err,
boolean pagedir)
throws JasperException {
if ("true".equalsIgnoreCase(value)) {
deferredSyntaxAllowedAsLiteral = true;
} else if ("false".equalsIgnoreCase(value)) {
deferredSyntaxAllowedAsLiteral = false;
} else {
if (pagedir) {
err.jspError(n, "jsp.error.page.invalid.deferredsyntaxallowedasliteral");
} else {
err.jspError(n, "jsp.error.tag.invalid.deferredsyntaxallowedasliteral");
}
}
deferredSyntaxAllowedAsLiteralValue = value;
}
/*
* trimDirectiveWhitespaces
*/
public void setTrimDirectiveWhitespaces(String value, Node n, ErrorDispatcher err,
boolean pagedir)
throws JasperException {
if ("true".equalsIgnoreCase(value)) {
trimDirectiveWhitespaces = true;
} else if ("false".equalsIgnoreCase(value)) {
trimDirectiveWhitespaces = false;
} else {
if (pagedir) {
err.jspError(n, "jsp.error.page.invalid.trimdirectivewhitespaces");
} else {
err.jspError(n, "jsp.error.tag.invalid.trimdirectivewhitespaces");
}
}
trimDirectiveWhitespacesValue = value;
}
public void setELIgnored(boolean s) {
isELIgnored = s;
}
public String getIsELIgnored() {
return isELIgnoredValue;
}
public boolean isELIgnored() {
return isELIgnored;
}
public void setErrorOnELNotFound(boolean s) {
errorOnELNotFound = s;
}
public String getErrorOnELNotFound() {
return errorOnELNotFoundValue;
}
public boolean isErrorOnELNotFound() {
return errorOnELNotFound;
}
public void putNonCustomTagPrefix(String prefix, Mark where) {
nonCustomTagPrefixMap.put(prefix, where);
}
public Mark getNonCustomTagPrefix(String prefix) {
return nonCustomTagPrefixMap.get(prefix);
}
public String getDeferredSyntaxAllowedAsLiteral() {
return deferredSyntaxAllowedAsLiteralValue;
}
public boolean isDeferredSyntaxAllowedAsLiteral() {
return deferredSyntaxAllowedAsLiteral;
}
public void setDeferredSyntaxAllowedAsLiteral(boolean isELDeferred) {
this.deferredSyntaxAllowedAsLiteral = isELDeferred;
}
public ExpressionFactory getExpressionFactory() {
return expressionFactory;
}
public String getTrimDirectiveWhitespaces() {
return trimDirectiveWhitespacesValue;
}
public boolean isTrimDirectiveWhitespaces() {
return trimDirectiveWhitespaces;
}
public void setTrimDirectiveWhitespaces(boolean trimDirectiveWhitespaces) {
this.trimDirectiveWhitespaces = trimDirectiveWhitespaces;
}
public Set getVarInfoNames() {
return varInfoNames;
}
public boolean isErrorOnUndeclaredNamespace() {
return errorOnUndeclaredNamespace;
}
public void setErrorOnUndeclaredNamespace(
boolean errorOnUndeclaredNamespace) {
this.errorOnUndeclaredNamespace = errorOnUndeclaredNamespace;
}
}
