JDK 11 java.xml.jmod - XML Module

JDK 11 java.xml.jmod is the JMOD file for JDK 11 XML (eXtensible Markup Language) module.

JDK 11 XML module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.xml.jmod.

JDK 11 XML module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 XML module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.xml.

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com/sun/org/apache/xalan/internal/utils/XMLSecurityManager.java

/*
 * Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
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 *
 *
 *
 *
 *
 *
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 *
 *
 *
 */

package com.sun.org.apache.xalan.internal.utils;

import com.sun.org.apache.xalan.internal.XalanConstants;
import java.util.concurrent.CopyOnWriteArrayList;
import jdk.xml.internal.SecuritySupport;
import org.xml.sax.SAXException;


/**
 * This class is not the same as that in Xerces. It is used to manage the
 * state of corresponding Xerces properties and pass the values over to
 * the Xerces Security Manager.
 *
 * @author Joe Wang Oracle Corp.
 *
 */
public final class XMLSecurityManager {

    /**
     * States of the settings of a property, in the order: default value, value
     * set by FEATURE_SECURE_PROCESSING, jaxp.properties file, jaxp system
     * properties, and jaxp api properties
     */
    public static enum State {
        //this order reflects the overriding order

        DEFAULT("default"), FSP("FEATURE_SECURE_PROCESSING"),
        JAXPDOTPROPERTIES("jaxp.properties"), SYSTEMPROPERTY("system property"),
        APIPROPERTY("property");

        final String literal;
        State(String literal) {
            this.literal = literal;
        }

        String literal() {
            return literal;
        }
    }

    /**
     * Limits managed by the security manager
     */
    public static enum Limit {

        ENTITY_EXPANSION_LIMIT("EntityExpansionLimit", XalanConstants.JDK_ENTITY_EXPANSION_LIMIT,
                XalanConstants.SP_ENTITY_EXPANSION_LIMIT, 0, 64000),
        MAX_OCCUR_NODE_LIMIT("MaxOccurLimit", XalanConstants.JDK_MAX_OCCUR_LIMIT,
                XalanConstants.SP_MAX_OCCUR_LIMIT, 0, 5000),
        ELEMENT_ATTRIBUTE_LIMIT("ElementAttributeLimit", XalanConstants.JDK_ELEMENT_ATTRIBUTE_LIMIT,
                XalanConstants.SP_ELEMENT_ATTRIBUTE_LIMIT, 0, 10000),
        TOTAL_ENTITY_SIZE_LIMIT("TotalEntitySizeLimit", XalanConstants.JDK_TOTAL_ENTITY_SIZE_LIMIT,
                XalanConstants.SP_TOTAL_ENTITY_SIZE_LIMIT, 0, 50000000),
        GENERAL_ENTITY_SIZE_LIMIT("MaxEntitySizeLimit", XalanConstants.JDK_GENERAL_ENTITY_SIZE_LIMIT,
                XalanConstants.SP_GENERAL_ENTITY_SIZE_LIMIT, 0, 0),
        PARAMETER_ENTITY_SIZE_LIMIT("MaxEntitySizeLimit", XalanConstants.JDK_PARAMETER_ENTITY_SIZE_LIMIT,
                XalanConstants.SP_PARAMETER_ENTITY_SIZE_LIMIT, 0, 1000000),
        MAX_ELEMENT_DEPTH_LIMIT("MaxElementDepthLimit", XalanConstants.JDK_MAX_ELEMENT_DEPTH,
                XalanConstants.SP_MAX_ELEMENT_DEPTH, 0, 0),
        MAX_NAME_LIMIT("MaxXMLNameLimit", XalanConstants.JDK_XML_NAME_LIMIT,
                XalanConstants.SP_XML_NAME_LIMIT, 1000, 1000),
        ENTITY_REPLACEMENT_LIMIT("EntityReplacementLimit", XalanConstants.JDK_ENTITY_REPLACEMENT_LIMIT,
                XalanConstants.SP_ENTITY_REPLACEMENT_LIMIT, 0, 3000000);

        final String key;
        final String apiProperty;
        final String systemProperty;
        final int defaultValue;
        final int secureValue;

        Limit(String key, String apiProperty, String systemProperty, int value, int secureValue) {
            this.key = key;
            this.apiProperty = apiProperty;
            this.systemProperty = systemProperty;
            this.defaultValue = value;
            this.secureValue = secureValue;
        }

        public boolean equalsAPIPropertyName(String propertyName) {
            return (propertyName == null) ? false : apiProperty.equals(propertyName);
        }

        public boolean equalsSystemPropertyName(String propertyName) {
            return (propertyName == null) ? false : systemProperty.equals(propertyName);
        }

        public String key() {
            return key;
        }

        public String apiProperty() {
            return apiProperty;
        }

        String systemProperty() {
            return systemProperty;
        }

        public int defaultValue() {
            return defaultValue;
        }

        int secureValue() {
            return secureValue;
        }
    }

    /**
     * Map old property names with the new ones
     */
    public static enum NameMap {

        ENTITY_EXPANSION_LIMIT(XalanConstants.SP_ENTITY_EXPANSION_LIMIT,
                XalanConstants.ENTITY_EXPANSION_LIMIT),
        MAX_OCCUR_NODE_LIMIT(XalanConstants.SP_MAX_OCCUR_LIMIT,
                XalanConstants.MAX_OCCUR_LIMIT),
        ELEMENT_ATTRIBUTE_LIMIT(XalanConstants.SP_ELEMENT_ATTRIBUTE_LIMIT,
                XalanConstants.ELEMENT_ATTRIBUTE_LIMIT);
        final String newName;
        final String oldName;

        NameMap(String newName, String oldName) {
            this.newName = newName;
            this.oldName = oldName;
        }

        String getOldName(String newName) {
            if (newName.equals(this.newName)) {
                return oldName;
            }
            return null;
        }
    }
    /**
     * Values of the properties
     */
    private final int[] values;
    /**
     * States of the settings for each property
     */
    private State[] states;
    /**
     * States that determine if properties are set explicitly
     */
    private boolean[] isSet;


    /**
     * Index of the special entityCountInfo property
     */
    private final int indexEntityCountInfo = 10000;
    private String printEntityCountInfo = "";

    /**
     * Default constructor. Establishes default values for known security
     * vulnerabilities.
     */
    public XMLSecurityManager() {
        this(false);
    }

    /**
     * Instantiate Security Manager in accordance with the status of
     * secure processing
     * @param secureProcessing
     */
    public XMLSecurityManager(boolean secureProcessing) {
        values = new int[Limit.values().length];
        states = new State[Limit.values().length];
        isSet = new boolean[Limit.values().length];
        for (Limit limit : Limit.values()) {
            if (secureProcessing) {
                values[limit.ordinal()] = limit.secureValue();
                states[limit.ordinal()] = State.FSP;
            } else {
                values[limit.ordinal()] = limit.defaultValue();
                states[limit.ordinal()] = State.DEFAULT;
            }
        }
        //read system properties or jaxp.properties
        readSystemProperties();
    }

    /**
     * Setting FEATURE_SECURE_PROCESSING explicitly
     */
    public void setSecureProcessing(boolean secure) {
        for (Limit limit : Limit.values()) {
            if (secure) {
                setLimit(limit.ordinal(), State.FSP, limit.secureValue());
            } else {
                setLimit(limit.ordinal(), State.FSP, limit.defaultValue());
            }
        }
    }

    /**
     * Set limit by property name and state
     * @param propertyName property name
     * @param state the state of the property
     * @param value the value of the property
     * @return true if the property is managed by the security manager; false
     *              if otherwise.
     */
    public boolean setLimit(String propertyName, State state, Object value) {
        int index = getIndex(propertyName);
        if (index > -1) {
            setLimit(index, state, value);
            return true;
        }
        return false;
    }

    /**
     * Set the value for a specific limit.
     *
     * @param limit the limit
     * @param state the state of the property
     * @param value the value of the property
     */
    public void setLimit(Limit limit, State state, int value) {
        setLimit(limit.ordinal(), state, value);
    }

    /**
     * Set the value of a property by its index
     *
     * @param index the index of the property
     * @param state the state of the property
     * @param value the value of the property
     */
    public void setLimit(int index, State state, Object value) {
        if (index == indexEntityCountInfo) {
            //if it's explicitly set, it's treated as yes no matter the value
            printEntityCountInfo = (String)value;
        } else {
            int temp = 0;
            try {
                temp = Integer.parseInt((String) value);
                if (temp < 0) {
                    temp = 0;
                }
            } catch (NumberFormatException e) {}
            setLimit(index, state, temp);        }
    }

    /**
     * Set the value of a property by its index
     *
     * @param index the index of the property
     * @param state the state of the property
     * @param value the value of the property
     */
    public void setLimit(int index, State state, int value) {
        if (index == indexEntityCountInfo) {
            //if it's explicitly set, it's treated as yes no matter the value
            printEntityCountInfo = XalanConstants.JDK_YES;
        } else {
            //only update if it shall override
            if (state.compareTo(states[index]) >= 0) {
                values[index] = value;
                states[index] = state;
                isSet[index] = true;
            }
        }
    }


    /**
     * Return the value of the specified property.
     *
     * @param propertyName the property name
     * @return the value of the property as a string. If a property is managed
     * by this manager, its value shall not be null.
     */
    public String getLimitAsString(String propertyName) {
        int index = getIndex(propertyName);
        if (index > -1) {
            return getLimitValueByIndex(index);
        }

        return null;
    }

    /**
     * Return the value of a property by its ordinal
     *
     * @param limit the property
     * @return value of a property
     */
    public String getLimitValueAsString(Limit limit) {
        return Integer.toString(values[limit.ordinal()]);
    }

    /**
     * Return the value of the specified property
     *
     * @param limit the property
     * @return the value of the property
     */
    public int getLimit(Limit limit) {
        return values[limit.ordinal()];
    }

    /**
     * Return the value of a property by its ordinal
     *
     * @param index the index of a property
     * @return value of a property
     */
    public int getLimitByIndex(int index) {
        return values[index];
    }
    /**
     * Return the value of a property by its index
     *
     * @param index the index of a property
     * @return limit of a property as a string
     */
    public String getLimitValueByIndex(int index) {
        if (index == indexEntityCountInfo) {
            return printEntityCountInfo;
        }

        return Integer.toString(values[index]);
    }
    /**
     * Return the state of the limit property
     *
     * @param limit the limit
     * @return the state of the limit property
     */
    public State getState(Limit limit) {
        return states[limit.ordinal()];
    }

    /**
     * Return the state of the limit property
     *
     * @param limit the limit
     * @return the state of the limit property
     */
    public String getStateLiteral(Limit limit) {
        return states[limit.ordinal()].literal();
    }

    /**
     * Get the index by property name
     *
     * @param propertyName property name
     * @return the index of the property if found; return -1 if not
     */
    public int getIndex(String propertyName) {
        for (Limit limit : Limit.values()) {
            if (limit.equalsAPIPropertyName(propertyName)) {
                //internally, ordinal is used as index
                return limit.ordinal();
            }
        }
        //special property to return entity count info
        if (propertyName.equals(XalanConstants.JDK_ENTITY_COUNT_INFO)) {
            return indexEntityCountInfo;
        }
        return -1;
    }

    /**
     * Indicate if a property is set explicitly
     * @param index
     * @return
     */
    public boolean isSet(int index) {
        return isSet[index];
    }

    public boolean printEntityCountInfo() {
        return printEntityCountInfo.equals(XalanConstants.JDK_YES);
    }
    /**
     * Read from system properties, or those in jaxp.properties
     */
    private void readSystemProperties() {

        for (Limit limit : Limit.values()) {
            if (!getSystemProperty(limit, limit.systemProperty())) {
                //if system property is not found, try the older form if any
                for (NameMap nameMap : NameMap.values()) {
                    String oldName = nameMap.getOldName(limit.systemProperty());
                    if (oldName != null) {
                        getSystemProperty(limit, oldName);
                    }
                }
            }
        }

    }

    // Array list to store printed warnings for each SAX parser used
    private static final CopyOnWriteArrayList<String> printedWarnings = new CopyOnWriteArrayList<>();

    /**
     * Prints out warnings if a parser does not support the specified feature/property.
     *
     * @param parserClassName the name of the parser class
     * @param propertyName the property name
     * @param exception the exception thrown by the parser
     */
    public static void printWarning(String parserClassName, String propertyName, SAXException exception) {
        String key = parserClassName+":"+propertyName;
        if (printedWarnings.addIfAbsent(key)) {
            System.err.println( "Warning: "+parserClassName+": "+exception.getMessage());
        }
    }

    /**
     * Read from system properties, or those in jaxp.properties
     *
     * @param property the type of the property
     * @param sysPropertyName the name of system property
     */
    private boolean getSystemProperty(Limit limit, String sysPropertyName) {
        try {
            String value = SecuritySupport.getSystemProperty(sysPropertyName);
            if (value != null && !value.equals("")) {
                values[limit.ordinal()] = Integer.parseInt(value);
                states[limit.ordinal()] = State.SYSTEMPROPERTY;
                return true;
            }

            value = SecuritySupport.readJAXPProperty(sysPropertyName);
            if (value != null && !value.equals("")) {
                values[limit.ordinal()] = Integer.parseInt(value);
                states[limit.ordinal()] = State.JAXPDOTPROPERTIES;
                return true;
            }
        } catch (NumberFormatException e) {
            //invalid setting
            throw new NumberFormatException("Invalid setting for system property: " + limit.systemProperty());
        }
        return false;
    }
}

com/sun/org/apache/xalan/internal/utils/XMLSecurityManager.java

 

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Release date: 2018-11-04
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