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## 内容1
### 文件路径：
jt-jiffle/jt-jiffle-language/src/main/java/it/geosolutions/jaiext/jiffle/Jiffle.java
### 代码内容：
package it.geosolutions.jaiext.jiffle;

import org.antlr.v4.runtime.CharStream;
import org.antlr.v4.runtime.CharStreams;
import org.antlr.v4.runtime.CommonTokenStream;
import org.antlr.v4.runtime.TokenStream;
import org.antlr.v4.runtime.tree.ParseTree;
import org.codehaus.janino.SimpleCompiler;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

import it.geosolutions.jaiext.jiffle.parser.ExpressionWorker;
import it.geosolutions.jaiext.jiffle.parser.ImagesBlockWorker;
import it.geosolutions.jaiext.jiffle.parser.InitBlockWorker;
import it.geosolutions.jaiext.jiffle.parser.JiffleLexer;
import it.geosolutions.jaiext.jiffle.parser.JiffleParser;
import it.geosolutions.jaiext.jiffle.parser.JiffleParserErrorListener;
import it.geosolutions.jaiext.jiffle.parser.Messages;
import it.geosolutions.jaiext.jiffle.parser.OptionsBlockWorker;
import it.geosolutions.jaiext.jiffle.parser.RuntimeModelWorker;
import it.geosolutions.jaiext.jiffle.parser.SourcePositionsWorker;
import it.geosolutions.jaiext.jiffle.parser.VarWorker;
import it.geosolutions.jaiext.jiffle.parser.node.GetSourceValue;
import it.geosolutions.jaiext.jiffle.parser.node.Script;
import it.geosolutions.jaiext.jiffle.parser.node.SourceWriter;
import it.geosolutions.jaiext.jiffle.runtime.JiffleDirectRuntime;
import it.geosolutions.jaiext.jiffle.runtime.JiffleIndirectRuntime;
import it.geosolutions.jaiext.jiffle.runtime.JiffleRuntime;

/**
 * Compiles scripts and generates Java sources and executable bytecode for
 * runtime classes.
 *

 * Example of use:
 *

 * // A script to write sequential values to image pixels
 * String script = "images { dest=write; } dest = x() + y() * width();" ;
 *
 * Jiffle jiffle = new Jiffle();
 * jiffle.setScript(script);
 * jifle.compile();
 *
 * // Now we get the runtime object from the compiled Jiffle object
 * JiffleDirectRuntime runtime = jiffle.getRuntimeInstance();
 *
 * // Create an image to hold the results of the script
 * final int width = 10;
 * WritableRenderedImage destImg = ImageUtils.createConstantImage(width, width, 0.0d);
 *
 * // Associate this image with the variable name used in the script
 * runtime.setDestinationImage("dest", destImg);
 *
 * // Evaluate the script for all destination image pixels
 * runtime.evaluateAll();
 *

 * For further examples of how to create and run Jiffle scripts see the
 * {@code it.geosolutions.jaiext.demo.jiffle} package in the JAI-tools demo module.
 *
 *
Implementation note

 * The Jiffle compiler is actually a Jiffle to Java translator.
 * When a client requests a runtime object, the script is translated into
 * Java source for a runtime class. This source code is then passed to an
 * embedded Janino compiler which produces the runtime object.
 *
 * @see JiffleBuilder
 * @see it.geosolutions.jaiext.jiffle.runtime.JiffleExecutor
 *
 * @author Michael Bedward
 * @since 0.1
 * @version $Id$
 */
public class Jiffle {

    public static final Logger LOGGER = Logger.getLogger(Jiffle.class.getName());

    private static Pattern BLOCK_COMMENT_STRIPPER = Pattern.compile("(?:/\\*(?:[^*]|(?:\\*+[^*/]))*\\*+/)");

    /**
     * Constants for runtime model. Jiffle supports two runtime models:
     *

     *

     * Direct - where the runtime class {@code evaluate} method directly
     * sets values in the destination image(s)
     *

     *

     * Indirect - where there is a single destination image and the runtime
     * class {@code evaluate} method returns the destination value, leaving
     * it up to the caller to set the value in the image.
     * object
     *

     *

     * The indirect model is designed for use in an image operator or similar
     * context where further processing of destination values might be required
     * before writing to an image.
     */
    public static enum RuntimeModel {
        /** The runtime class implements {@link JiffleDirectRuntime} */
        DIRECT(JiffleDirectRuntime.class),

        /** The runtime class implements {@link JiffleIndirectRuntime} */
        INDIRECT(JiffleIndirectRuntime.class);

        private Class<? extends JiffleRuntime> runtimeClass;

        private RuntimeModel(Class<? extends JiffleRuntime> clazz) {
            this.runtimeClass = clazz;
        }

        /**
         * Gets the runtime interface.
         *
         * @return the runtime interface
         */
        public Class<? extends JiffleRuntime> getRuntimeClass() {
            return runtimeClass;
        }

        /**
         * Gets the matching constant for the given runtime class.
         *
         * @param clazz a runtime class
         *
         * @return the contant or {@code null} if the class does not derive
         *         from a supported base class
         */
        public static Jiffle.RuntimeModel get(Class<? extends JiffleRuntime> clazz) {
            for (Jiffle.RuntimeModel t : Jiffle.RuntimeModel.values()) {
                if (t.runtimeClass.isAssignableFrom(clazz)) {
                    return t;
                }
            }

            return null;
        }
    }

    /** Number of Jiffle instances */
    private static int refCount = 0;

    /**
     * Used to specify the roles of images referenced in
     * a Jiffle script. An image may be either read-only
     * ({@link Jiffle.ImageRole#SOURCE}) or write-only
     * ({@link Jiffle.ImageRole#DEST}) but not both.
     */
    public static enum ImageRole {
        /** Indicates an image is used for input (read-only) */
        SOURCE,

        /** Indicates an image is used for output (write-only) */
        DEST;
    }

    /** A name: either a default or one set by the client */
    private String name;

    private String theScript;
    private Script scriptModel;
    private Map<String, Jiffle.ImageRole> imageParams;
    private Map<String, Integer> destinationBands;

    /**
     * Creates a new instance.
     */
    public Jiffle() {
        init();
    }

    /**
     * Creates a new instance by compiling the provided script. Using this
     * constructor is equivalent to:
     *

     * Jiffle jiffle = new Jiffle();
     * jiffle.setScript(script);
     * jiffle.setImageParams(params);
     * jiffle.compile();
     *

     *
     * @param script Jiffle source code to compile
     *
     * @param params defines the names and roles of image variables
     *        referred to in the script.
     * @throws JiffleException on compilation errors
     *
     */
    public Jiffle(String script, Map<String, Jiffle.ImageRole> params)
            throws it.geosolutions.jaiext.jiffle.JiffleException {
        init();
        setScript(script);
        setImageParams(params);
        compile();
    }

    /**
     * Creates a new instance by compiling the script read from {@code scriptFile}.
     * Using this constructor is equivalent to:
     *

     * Jiffle jiffle = new Jiffle();
     * jiffle.setScript(scriptFile);
     * jiffle.setImageParams(params);
     * jiffle.compile();
     *

     *
     * @param scriptFile file containing the Jiffle script
     *
     * @param params defines the names and roles of image variables
     *        referred to in the script.
     *
     * @throws JiffleException on compilation errors
     */
    public Jiffle(File scriptFile, Map<String, Jiffle.ImageRole> params)
            throws it.geosolutions.jaiext.jiffle.JiffleException {
        init();
        setScript(scriptFile);
        setImageParams(params);
        compile();
    }

    /**
     * Sets the script. Calling this method will clear any previous script
     * and runtime objects.
     *
     * @param script a Jiffle script
     * @throws JiffleException if the script is empty or {@code null}
     */
    public final void setScript(String script) throws
            it.geosolutions.jaiext.jiffle.JiffleException {
        if (script == null || script.trim().length() == 0) {
            throw new it.geosolutions.jaiext.jiffle.JiffleException("script is empty !");
        }

        clearCompiledObjects();

        // add extra new line just in case last statement hits EOF
        theScript = script + "\n";
    }

    /**
     * Sets the script. Calling this method will clear any previous script
     * and runtime objects.
     *
     * @param scriptFile a file containing a Jiffle script
     * @throws JiffleException if the script is empty or {@code null}
     */
    public final void setScript(File scriptFile) throws
            it.geosolutions.jaiext.jiffle.JiffleException {
        BufferedReader reader = null;
        try {
            reader = new BufferedReader(new FileReader(scriptFile));
            StringBuilder sb = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                line = line.trim();
                if (line.length() > 0) {
                    sb.append(line);
                    sb.append('\n');  // put the newline back on for the parser
                }
            }

            setScript(sb.toString());

        } catch (IOException ex) {
            throw new it.geosolutions.jaiext.jiffle.JiffleException("Could not read the script file", ex);

        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException ignored) {
                }
            }
        }
    }

    /**
     * Gets the Jiffle script.
     *
     * @return the script or an empty {@code String} if none
     *         has been set
     */
    public String getScript() {
        return theScript == null ? "" : theScript;
    }

    /**
     * Sets the image parameters. These define which variables in
     * the script refer to images and their types (source or destination).
     *

     * This may be called before or after setting the script. No check is
     * made between script and parameters until the script is compiled.
     *
     * @param params the image parameters
     */
    public final void setImageParams(Map<String, Jiffle.ImageRole> params) {
        imageParams.clear();
        imageParams.putAll(params);
    }

    /**
     * Gets the current image parameters. The parameters are returned
     * as an unmodifiable map.
     *
     * @return image parameters or an empty {@code Map} if none
     *         are set
     */
    public Map<String, Jiffle.ImageRole> getImageParams() {
        return Collections.unmodifiableMap(imageParams);
    }

    /**
     * Replaces the default name set for this object with a user-supplied name.
     * The name is solely for use by client code. No checks are made for
     * duplication between current instances.
     *
     * @param name the name to assign
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * Gets the name assigned to this object. This will either be the
     * default name or one assigned by the client via {@link #setName(String)}
     *
     * @return the name
     */
    public String getName() {
        return name;
    }

    /**
     * Compiles the script into Java source for the runtime class.
     *
     * @throws JiffleException on compilation errors
     */
    public final void compile() throws it.geosolutions.jaiext.jiffle.JiffleException {
        if (theScript == null) {
            throw new it.geosolutions.jaiext.jiffle.JiffleException("No script has been set");
        }

        Jiffle.Result<ParseTree> parseResult = parseScript(theScript);
        if (parseResult.messages.isError()) {
            reportMessages(parseResult);
            return;
        }

        /*
         * If image var parameters were provided by the caller we
         * ignore any in the script. Otherwise, we look for an
         * images block in the script.
         */
        ParseTree tree = parseResult.result;
        if (imageParams.isEmpty()) {
            Jiffle.Result<Map<String, Jiffle.ImageRole>> r = getScriptImageParams(
                    tree);
            if (r.messages.isError()) {
                reportMessages(r);
                return;
            }
            if (r.result.isEmpty()) {
                throw new it.geosolutions.jaiext.jiffle.JiffleException(
                        "No image parameters provided and none found in script");
            }

            setImageParams(r.result);
        }

        // run the other preparation and check related workers
        OptionsBlockWorker optionsWorker = new OptionsBlockWorker(tree);
        reportMessages(optionsWorker.messages);
        InitBlockWorker initWorker = new InitBlockWorker(tree);
        reportMessages(initWorker.messages);
        VarWorker vw = new VarWorker(tree, imageParams);
        ExpressionWorker expressionWorker = new ExpressionWorker(tree, vw);
        reportMessages(expressionWorker.messages);

        //
        RuntimeModelWorker worker = new RuntimeModelWorker(tree, optionsWorker.options, expressionWorker.getProperties(), expressionWorker.getScopes());
        this.scriptModel = worker.getScriptNode();
        this.destinationBands = worker.getDestinationBands();
    }

    /**
     * Tests whether the script has been compiled successfully.
     *
     * @return {@code true} if the script has been compiled;
     *         {@code false} otherwise
     */
    public boolean isCompiled() {
        return scriptModel != null;
    }

    /**
     * Creates an instance of the default runtime class.
     *

     * The default runtime class implements {@link JiffleDirectRuntime} and
     * extends an abstract base class provided by the Jiffle compiler. Objects
     * of this class evaluate the Jiffle script and write results directly to
     * the destination image(s). Client code can call either of the methods:
     *

     *
{@code evaluate(int x, int y)}
     *
{@code evaluateAll(JiffleProgressListener listener}
     *

     * The {@code Jiffle} object must be compiled before calling this method.
     *
     * @return the runtime object
     * @throws JiffleException if the script has not been compiled or if errors
     *         occur in creating the runtime instance
     */
    public JiffleDirectRuntime getRuntimeInstance() throws
            it.geosolutions.jaiext.jiffle.JiffleException {
        return (JiffleDirectRuntime) getRuntimeInstance(RuntimeModel.DIRECT);
    }

    /**
     * Creates a runtime object based using the class specified by {@code model}.
     *

     * The {@code Jiffle} object must be compiled before calling this method.
     *
     * @param model the {@link Jiffle.RuntimeModel}
     * @return the runtime object
     * @throws JiffleException  if the script has not been compiled or if errors
     *         occur in creating the runtime instance
     */
    public JiffleRuntime getRuntimeInstance(Jiffle.RuntimeModel model) throws
            it.geosolutions.jaiext.jiffle.JiffleException {
        return createRuntimeInstance(model, getRuntimeBaseClass(model), false);
    }

    /**
     * Gets the runtime object for this script.
     *

     * The runtime object is an instance of {@link JiffleRuntime}. By default
     * it extends an abstract base class supplied JAI-tools:
     * {@link it.geosolutions.jaiext.jiffle.runtime.AbstractDirectRuntime}
     * when using the direct runtiem model or
     * {@link it.geosolutions.jaiext.jiffle.runtime.AbstractIndirectRuntime}
     * when using the indirect model. This method allows you to
     * specify a custom base class. The custom class must implement either
     * {@link JiffleDirectRuntime} or {@link JiffleIndirectRuntime}.
     *
     * @param <T> the runtime base class type
     * @param baseClass the runtime base class
     *
     * @return the runtime object
     * @throws JiffleException  if the script has not been compiled or if errors
     *         occur in creating the runtime instance
     */

    public <T extends JiffleRuntime> T getRuntimeInstance(Class<T> baseClass) throws
            it.geosolutions.jaiext.jiffle.JiffleException {
        RuntimeModel model = RuntimeModel.get(baseClass);
        if (model == null) {
            throw new it.geosolutions.jaiext.jiffle.JiffleException(baseClass.getName() +
                    " does not implement a required Jiffle runtime interface");
        }

        return (T) createRuntimeInstance(model, baseClass, false);
    }

    private JiffleRuntime createRuntimeInstance(RuntimeModel model, Class<? extends JiffleRuntime> runtimeClass, boolean scriptInDocs) throws

            it.geosolutions.jaiext.jiffle.JiffleException {
        if (!isCompiled()) {
            throw new it.geosolutions.jaiext.jiffle.JiffleException("The script has not been compiled");
        }

        String runtimeSource = createRuntimeSource(model, runtimeClass.getName(), scriptInDocs);
        if (LOGGER.isLoggable(Level.FINE)) {
            LOGGER.log(Level.FINE, "Jiffle script compiled to:\n\n" + runtimeSource);
        }
        try {
            SimpleCompiler compiler = new SimpleCompiler();
            compiler.cook(runtimeSource);

            StringBuilder sb = new StringBuilder();
            sb.append(it.geosolutions.jaiext.jiffle.JiffleProperties.get(
                    it.geosolutions.jaiext.jiffle.JiffleProperties.RUNTIME_PACKAGE_KEY)).append(".");

            switch (model) {
                case DIRECT:
                    sb.append(it.geosolutions.jaiext.jiffle.JiffleProperties.get(
                            it.geosolutions.jaiext.jiffle.JiffleProperties.DIRECT_CLASS_KEY));
                    break;

                case INDIRECT:
                    sb.append(it.geosolutions.jaiext.jiffle.JiffleProperties.get(
                            it.geosolutions.jaiext.jiffle.JiffleProperties.INDIRECT_CLASS_KEY));
                    break;

                default:
                    throw new IllegalArgumentException("Internal compiler error");
            }

            Class<?> clazz = compiler.getClassLoader().loadClass(sb.toString());
            JiffleRuntime runtime = (JiffleRuntime) clazz.newInstance();
            runtime.setImageParams(imageParams);
            if (runtime instanceof JiffleIndirectRuntime) {
                ((JiffleIndirectRuntime) runtime).setDestinationBands(destinationBands);
            }
            return runtime;

        } catch (Exception ex) {
            throw new it.geosolutions.jaiext.jiffle.JiffleException("Runtime source error for source: " + runtimeSource, ex);
        }
    }

    /**
     * Gets a copy of the Java source for the runtime class. The
     * script must have been compiled before calling this method.
     *
     * @param scriptInDocs whether to include the original Jiffle script
     *        in the class javadocs
     *
     * @return source for the runtime class
     *
     * @throws JiffleException  if the script has not been compiled or if errors
     *         occur in creating the runtime source code
     */
    public String getRuntimeSource(boolean scriptInDocs)
            throws it.geosolutions.jaiext.jiffle.JiffleException {

        return getRuntimeSource(RuntimeModel.DIRECT, scriptInDocs);
    }

    /**
     * Gets a copy of the Java source for the runtime class. The
     * script must have been compiled before calling this method.
     *
     * @param model the {@link Jiffle.RuntimeModel}
     * @param scriptInDocs whether to include the original Jiffle script
     *        in the class javadocs
     *
     * @return source for the runtime class
     * @throws JiffleException   if the script has not been compiled or if errors
     *         occur in creating the runtime source code
     *
     */
    public String getRuntimeSource(Jiffle.RuntimeModel model, boolean scriptInDocs)
            throws it.geosolutions.jaiext.jiffle.JiffleException {
        return createRuntimeSource(model, getRuntimeBaseClass(model).getName(), scriptInDocs);
    }

    private Class<? extends JiffleRuntime> getRuntimeBaseClass(RuntimeModel model) {
        Class<? extends JiffleRuntime> baseClass = null;
        switch (model) {
            case DIRECT:
                baseClass = it.geosolutions.jaiext.jiffle.JiffleProperties.DEFAULT_DIRECT_BASE_CLASS;
                break;

            case INDIRECT:
                baseClass = it.geosolutions.jaiext.jiffle.JiffleProperties.DEFAULT_INDIRECT_BASE_CLASS;
                break;
        }

        return baseClass;
    }

    private String createRuntimeSource(RuntimeModel model, String baseClassName, boolean scriptInDocs) {
        if (scriptInDocs) {
            throw new RuntimeException("Do no know how to clean the block comments yet");
        }

        SourceWriter writer = new SourceWriter(model);
        writer.setScript(stripComments(theScript));
        writer.setBaseClassName(baseClassName);
        scriptModel.write(writer);
        return writer.getSource();
    }

    private String stripComments(String theScript) {
        return BLOCK_COMMENT_STRIPPER.matcher(theScript).replaceAll("");
    }

    /**
     * Initializes this object's name and runtime base class.
     */
    private void init() {
        Jiffle.refCount++ ;

        // TODO - CollectionFactory
        imageParams = new HashMap<String, Jiffle.ImageRole>();
    }

    /**
     * Clears all compiler and runtime objects.
     */
    private void clearCompiledObjects() {
        // TODO if necessary
    }

    /**
     * Builds the parse tree from the script.
     * @param script
     */
    private static Jiffle.Result<ParseTree> parseScript(String script) {
        CharStream input = CharStreams.fromString(script);

        JiffleLexer lexer = new JiffleLexer(input);
        TokenStream tokens = new CommonTokenStream(lexer);

        JiffleParser parser = new JiffleParser(tokens);
        parser.removeErrorListeners();

        JiffleParserErrorListener errListener = new JiffleParserErrorListener();
        parser.addErrorListener(errListener);

        ParseTree tree = parser.script();
        return new Jiffle.Result(tree, errListener.messages);
    }

    private static Jiffle.Result<Map<String, Jiffle.ImageRole>> getScriptImageParams(ParseTree tree) {
        ImagesBlockWorker reader = new ImagesBlockWorker(tree);
        return new Jiffle.Result(reader.imageVars, reader.messages);
    }

    private static void reportMessages(Jiffle.Result result) throws
            it.geosolutions.jaiext.jiffle.JiffleException {
        reportMessages(result.messages);
    }

    private static void reportMessages(Messages messages) throws
            it.geosolutions.jaiext.jiffle.JiffleException {
        if (messages.isError()) {
            String expectionMessage = messages.toString();
            throw new it.geosolutions.jaiext.jiffle.JiffleException(expectionMessage);
        }
    }

    private static class Result<T> {
        final T result;
        final Messages messages;

        public Result(T result, Messages messages) {
            this.result = result;
            this.messages = messages;
        }
    }

    /**
     * A utility method returning the source positions used in a given script
     *
     * @param script
     * @return
     */
    public static Set<GetSourceValue> getReadPositions(String script, List<String> sourceImageNames)
            throws JiffleException {
        Jiffle.Result<ParseTree> parseResult = parseScript(script);
        if (parseResult.messages.isError()) {
            reportMessages(parseResult);
            return Collections.emptySet();
        }

        // If image var parameters were provided by the caller we  ignore any in the script.
        // Otherwise, we look for an images block in the script.
        ParseTree tree = parseResult.result;
        if (sourceImageNames == null) {
            Jiffle.Result<Map<String, Jiffle.ImageRole>> r = getScriptImageParams(tree);
            sourceImageNames =
                    r.result
                            .entrySet()
                            .stream()
                            .filter(k -> k.getValue() == ImageRole.SOURCE)
                            .map(k -> k.getKey())
                            .collect(Collectors.toList());
        }

        if (sourceImageNames.isEmpty()) {
            return Collections.emptySet();
        }

        SourcePositionsWorker worker = new SourcePositionsWorker(tree, sourceImageNames);
        Set<GetSourceValue> positions = worker.getPositions();

        return positions;
    }
}

## 内容2
### 文件路径：
jt-jiffle/jt-jiffle-language/src/main/java/it/geosolutions/jaiext/jiffle/parser/node/Script.java
### 代码内容：
package it.geosolutions.jaiext.jiffle.parser.node;

import static java.lang.String.format;

import it.geosolutions.jaiext.jiffle.Jiffle;
import it.geosolutions.jaiext.jiffle.parser.JiffleParserException;
import it.geosolutions.jaiext.jiffle.parser.OptionLookup;
import it.geosolutions.jaiext.jiffle.parser.RepeatedReadOptimizer;
import it.geosolutions.jaiext.jiffle.parser.UndefinedOptionException;

import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;

/** @author michael */
public class Script implements Node {
    private final StatementList stmts;
    private final RepeatedReadOptimizer readOptimizer;
    private Map<String, String> options;
    private Set<String> sourceImages;
    private Set<String> destImages;
    private final GlobalVars globals;

    public Script(
            Map<String, String> options,
            Set<String> sourceImages,
            Set<String> destImages,
            GlobalVars globals,
            StatementList stmts,
            RepeatedReadOptimizer readOptimizer) {
        this.options = options;
        this.sourceImages = sourceImages;
        this.destImages = destImages;
        this.globals = globals;
        this.stmts = stmts;
        this.readOptimizer = readOptimizer;
    }

    public void write(SourceWriter w) {
        // class header
        String packageName = "it.geosolutions.jaiext.jiffle.runtime";
        w.line("package " + packageName + ";");
        w.newLine();
        w.line("import java.util.List;");
        w.line("import java.util.ArrayList;");
        w.line("import java.util.Arrays;");
        w.newLine();

        // add the script source, if available
        String script = w.getScript();
        if (script != null) {
            String[] lines = script.split("\n");
            w.line("/**");
            w.line(" * Java runtime class generated from the following Jiffle script: ");
            w.line(" *");
            for (String line : lines) {
                w.append(" * ").append(line).newLine();
            }
            w.line(" *");
            w.line(" */");
        }

        // class declaration
        String template = "public class %s extends %s {";
        String className;
        Jiffle.RuntimeModel model = w.getRuntimeModel();
        if (model == Jiffle.RuntimeModel.DIRECT) {
            className = "JiffleDirectRuntimeImpl";
        } else {
            className = "JiffleIndirectRuntimeImpl";
        }
        w.line(format(template, className, w.getBaseClassName()));

        // writing class fields
        w.inc();
        // ... if we are using a internal class, dodge map lookups while working on pixels
        if (w.isInternalBaseClass()) {
            for (String sourceImage : sourceImages) {
                w.indent().append("SourceImage s_").append(sourceImage).append(";").newLine();
            }
            if (model == Jiffle.RuntimeModel.DIRECT) {
                for (String destImage : destImages) {
                    w.indent()
                            .append("DestinationImage d_")
                            .append(destImage)
                            .append(";")
                            .newLine();
                }
            }
        }
        globals.writeFields(w);
        w.newLine();

        // adding the constructor
        w.indent().append("public ").append(className).append("() {").newLine();
        w.inc();
        w.indent().append("super(new String[] {");
        globals.listNames(w);
        w.append("});").newLine();
        w.dec();
        w.line("}");
        w.newLine();

        // add the options init, if required
        if (options != null && !options.isEmpty()) {
            w.line("protected void initOptionVars() {");
            w.inc();
            for (Map.Entry<String, String> entry : options.entrySet()) {
                String name = entry.getKey();
                String value = entry.getValue();
                try {
                    String activeExpr = OptionLookup.getActiveRuntimExpr(name, value);
                    w.line(activeExpr);
                } catch (UndefinedOptionException e) {
                    throw new JiffleParserException(e);
                }
            }
            w.dec();
            w.line("}");
        }

        // and field initializer method
        w.line("protected void initImageScopeVars() {");
        w.inc();
        if (w.isInternalBaseClass()) {
            for (String sourceImage : sourceImages) {
                w.indent()
                        .append("s_")
                        .append(sourceImage)
                        .append(" = (SourceImage) _images.get(\"")
                        .append(sourceImage)
                        .append("\");")
                        .newLine();
            }
            if (model == Jiffle.RuntimeModel.DIRECT) {
                for (String destImage : destImages) {
                    w.indent()
                            .append("d_")
                            .append(destImage)
                            .append("= (DestinationImage) _destImages.get(\"")
                            .append(destImage)
                            .append("\");")
                            .newLine();
                }
            }
        }
        globals.write(w);
        w.line("_imageScopeVarsInitialized = true;");
        w.dec();
        w.line("}");
        w.newLine();

        // the evaluate method
        if (model == Jiffle.RuntimeModel.DIRECT) {
            w.line("public void evaluate(double _x, double _y) {");
        } else {
            w.line("public void evaluate(double _x, double _y, double[] result) {");
        }
        w.inc();

        // basic checks at the beginning of pixel evaluation
        w.line("if (!isWorldSet()) {");
        w.inc();
        w.line("setDefaultBounds();");
        w.dec();
        w.line("}");
        w.line("if (!_imageScopeVarsInitialized) {");
        w.inc();
        w.line("initImageScopeVars();");
        w.dec();
        w.line("}");
        w.line("_stk.clear();");

        // centralize the source reads to avoid repeated reads
        readOptimizer.declareRepeatedReads(w);

        // the actual script
        w.newLine();
        stmts.write(w);

        w.dec();
        w.line("}");

        // closing class
        w.dec();
        w.line("}");
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Script script = (Script) o;
        return Objects.equals(stmts, script.stmts) &&
                Objects.equals(options, script.options) &&
                Objects.equals(sourceImages, script.sourceImages) &&
                Objects.equals(destImages, script.destImages) &&
                Objects.equals(globals, script.globals);
    }

    @Override
    public int hashCode() {
        return Objects.hash(stmts, options, sourceImages, destImages, globals);
    }

    public StatementList getStmts() {
        return stmts;
    }

    public Map<String, String> getOptions() {
        return Collections.unmodifiableMap(options);
    }

    public Set<String> getSourceImages() {
        return Collections.unmodifiableSet(sourceImages);
    }

    public Set<String> getDestImages() {
        return Collections.unmodifiableSet(destImages);
    }

    public GlobalVars getGlobals() {
        return globals;
    }
}

Output:
【漏洞类型】未验证的用户输入
【严重性】Medium
【漏洞摘要】在Jiffle类的`setScript`方法中，用户提供的脚本未经验证就被直接编译和执行。如果用户输入恶意脚本，可能会导致远程代码执行（RCE）漏洞。具体问题在于，`setScript`方法直接将用户输入的脚本传递给`compile`方法，而`compile`方法中使用Janino编译器将脚本转换为Java源代码并执行。这使得攻击者可以通过构造恶意脚本来执行任意代码。
【关键代码模式】setScript方法、compile方法、SimpleCompiler类、getRuntimeInstance方法
【修复方法说明】修复方法通过在`setScript`和`getRuntimeInstance`方法中添加`includeScript`标志，并在`createRuntimeSource`方法中使用该标志来决定是否包含原始脚本。同时，修复代码在`Script`类中添加了对变量名的正则表达式验证，以确保它们符合Java标识符的语法。这有助于防止恶意脚本的执行。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
src/main/java/org/codehaus/plexus/archiver/AbstractUnArchiver.java
### 代码内容：
package org.codehaus.plexus.archiver;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.codehaus.plexus.archiver.util.ArchiveEntryUtils;
import org.codehaus.plexus.components.io.attributes.SymlinkUtils;
import org.codehaus.plexus.components.io.fileselectors.FileSelector;
import org.codehaus.plexus.components.io.resources.PlexusIoResource;
import org.codehaus.plexus.logging.AbstractLogEnabled;
import org.codehaus.plexus.util.FileUtils;
import org.codehaus.plexus.util.IOUtil;
import org.codehaus.plexus.util.StringUtils;

/**
 * @author Emmanuel Venisse
 * @todo there should really be constructors which take the source file.
 */
public abstract class AbstractUnArchiver
    extends AbstractLogEnabled
    implements UnArchiver, FinalizerEnabled
{

    private File destDirectory;

    private File destFile;

    private File sourceFile;

    private boolean overwrite = true;

    private List finalizers;

    private FileSelector[] fileSelectors;

    /**
     * since 2.3 is on by default
     *
     * @since 1.1
     */
    private boolean useJvmChmod = true;

    /**
     * @since 1.1
     */
    private boolean ignorePermissions = false;

    public AbstractUnArchiver()
    {
        // no op
    }

    public AbstractUnArchiver( final File sourceFile )
    {
        this.sourceFile = sourceFile;
    }

    @Override
    public File getDestDirectory()
    {
        return destDirectory;
    }

    @Override
    public void setDestDirectory( final File destDirectory )
    {
        this.destDirectory = destDirectory;
    }

    @Override
    public File getDestFile()
    {
        return destFile;
    }

    @Override
    public void setDestFile( final File destFile )
    {
        this.destFile = destFile;
    }

    @Override
    public File getSourceFile()
    {
        return sourceFile;
    }

    @Override
    public void setSourceFile( final File sourceFile )
    {
        this.sourceFile = sourceFile;
    }

    @Override
    public boolean isOverwrite()
    {
        return overwrite;
    }

    @Override
    public void setOverwrite( final boolean b )
    {
        overwrite = b;
    }

    @Override
    public final void extract()
        throws ArchiverException
    {
        validate();
        execute();
        runArchiveFinalizers();
    }

    @Override
    public final void extract( final String path, final File outputDirectory )
        throws ArchiverException
    {
        validate( path, outputDirectory );
        execute( path, outputDirectory );
        runArchiveFinalizers();
    }

    @Override
    public void addArchiveFinalizer( final ArchiveFinalizer finalizer )
    {
        if ( finalizers == null )
        {
            finalizers = new ArrayList();
        }

        finalizers.add( finalizer );
    }

    @Override
    public void setArchiveFinalizers( final List archiveFinalizers )
    {
        finalizers = archiveFinalizers;
    }

    private void runArchiveFinalizers()
        throws ArchiverException
    {
        if ( finalizers != null )
        {
            for ( Object finalizer1 : finalizers )
            {
                final ArchiveFinalizer finalizer = (ArchiveFinalizer) finalizer1;

                finalizer.finalizeArchiveExtraction( this );
            }
        }
    }

    protected void validate( final String path, final File outputDirectory )
    {
    }

    protected void validate()
        throws ArchiverException
    {
        if ( sourceFile == null )
        {
            throw new ArchiverException( "The source file isn't defined." );
        }

        if ( sourceFile.isDirectory() )
        {
            throw new ArchiverException( "The source must not be a directory." );
        }

        if ( !sourceFile.exists() )
        {
            throw new ArchiverException( "The source file " + sourceFile + " doesn't exist." );
        }

        if ( destDirectory == null && destFile == null )
        {
            throw new ArchiverException( "The destination isn't defined." );
        }

        if ( destDirectory != null && destFile != null )
        {
            throw new ArchiverException( "You must choose between a destination directory and a destination file." );
        }

        if ( destDirectory != null && !destDirectory.isDirectory() )
        {
            destFile = destDirectory;
            destDirectory = null;
        }

        if ( destFile != null && destFile.isDirectory() )
        {
            destDirectory = destFile;
            destFile = null;
        }
    }

    @Override
    public void setFileSelectors( final FileSelector[] fileSelectors )
    {
        this.fileSelectors = fileSelectors;
    }

    @Override
    public FileSelector[] getFileSelectors()
    {
        return fileSelectors;
    }

    protected boolean isSelected( final String fileName, final PlexusIoResource fileInfo )
        throws ArchiverException
    {
        if ( fileSelectors != null )
        {
            for ( FileSelector fileSelector : fileSelectors )
            {
                try
                {

                    if ( !fileSelector.isSelected( fileInfo ) )
                    {
                        return false;
                    }
                }
                catch ( final IOException e )
                {
                    throw new ArchiverException(
                        "Failed to check, whether " + fileInfo.getName() + " is selected: " + e.getMessage(), e );
                }
            }
        }
        return true;
    }

    protected abstract void execute()
        throws ArchiverException;

    protected abstract void execute( String path, File outputDirectory )
        throws ArchiverException;

    /**
     * @since 1.1
     */
    @Override
    public boolean isUseJvmChmod()
    {
        return useJvmChmod;
    }

    /**
     * jvm chmod won't set group level permissions !
     *
     * @since 1.1
     */
    @Override
    public void setUseJvmChmod( final boolean useJvmChmod )
    {
        this.useJvmChmod = useJvmChmod;
    }

    /**
     * @since 1.1
     */
    @Override
    public boolean isIgnorePermissions()
    {
        return ignorePermissions;
    }

    /**
     * @since 1.1
     */
    @Override
    public void setIgnorePermissions( final boolean ignorePermissions )
    {
        this.ignorePermissions = ignorePermissions;
    }

    protected void extractFile( final File srcF, final File dir, final InputStream compressedInputStream,
                                final String entryName, final Date entryDate, final boolean isDirectory,
                                final Integer mode, String symlinkDestination )
        throws IOException, ArchiverException
    {
        // Hmm. Symlinks re-evaluate back to the original file here. Unsure if this is a good thing...
        final File f = FileUtils.resolveFile( dir, entryName );

        // Make sure that the resolved path of the extracted file doesn't escape the destination directory
        String canonicalDirPath = dir.getCanonicalPath();
        String canonicalDestPath = f.getCanonicalPath();

        if ( !canonicalDestPath.startsWith( canonicalDirPath ) )
        {
            throw new ArchiverException( "Entry is outside of the target directory (" + entryName + ")" );
        }

        try
        {
            if ( !isOverwrite() && f.exists() && ( f.lastModified() >= entryDate.getTime() ) )
            {
                return;
            }

            // create intermediary directories - sometimes zip don't add them
            final File dirF = f.getParentFile();
            if ( dirF != null )
            {
                dirF.mkdirs();
            }

            if ( !StringUtils.isEmpty( symlinkDestination ) )
            {
                SymlinkUtils.createSymbolicLink( f, new File( symlinkDestination ) );
            }
            else if ( isDirectory )
            {
                f.mkdirs();
            }
            else
            {
                OutputStream out = null;
                try
                {
                    out = new FileOutputStream( f );

                    IOUtil.copy( compressedInputStream, out );
                    out.close();
                    out = null;
                }
                finally
                {
                    IOUtil.close( out );
                }
            }

            f.setLastModified( entryDate.getTime() );

            if ( !isIgnorePermissions() && mode != null && !isDirectory )
            {
                ArchiveEntryUtils.chmod( f, mode );
            }
        }
        catch ( final FileNotFoundException ex )
        {
            getLogger().warn( "Unable to expand to file " + f.getPath() );
        }
    }

}

Output:
【漏洞类型】路径遍历漏洞
【严重性】High
【漏洞摘要】这是一个路径遍历漏洞。代码在`extractFile`函数中，通过`FileUtils.resolveFile(dir, entryName)`解析文件路径，但未进一步验证`entryName`是否会导致文件路径在目标目录之外。攻击者可以利用此漏洞通过精心构造的`entryName`来写入任意位置的文件，从而可能覆盖关键系统文件或进行其他恶意操作。
【关键代码模式】
- `FileUtils.resolveFile(dir, entryName)`
- 未验证的`entryName`是否会导致文件路径在目标目录之外
- `File f = FileUtils.resolveFile(dir, entryName)`
【修复方法说明】修复方法通过获取`dir`和`f`的绝对路径，并检查`canonicalDestPath`是否以`canonicalDirPath`开头，来确保解压的文件路径在目标目录之内。这解决了路径遍历漏洞的问题，增加了对文件路径的验证。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/objects/classes/TextAreaClass.java
### 代码内容：
/*
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package com.xpn.xwiki.objects.classes;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xwiki.edit.EditException;
import org.xwiki.edit.Editor;
import org.xwiki.edit.EditorManager;
import org.xwiki.rendering.syntax.Syntax;
import org.xwiki.rendering.syntax.SyntaxContent;
import org.xwiki.stability.Unstable;

import com.xpn.xwiki.XWikiContext;
import com.xpn.xwiki.doc.XWikiDocument;
import com.xpn.xwiki.internal.velocity.VelocityEvaluator;
import com.xpn.xwiki.objects.BaseCollection;
import com.xpn.xwiki.objects.BaseProperty;
import com.xpn.xwiki.objects.LargeStringProperty;
import com.xpn.xwiki.objects.meta.PropertyMetaClass;
import com.xpn.xwiki.web.Utils;

public class TextAreaClass extends StringClass
{
    /**
     * Possible values for the editor meta property.
     *

     * Indicates which editor should be used to manipulate the content of the property.
     */
    public enum EditorType
    {
        /**
         * Plain text without any known syntax.
         */
        PURE_TEXT("PureText"),

        /**
         * Edit wiki syntax using a text editor.
         */
        TEXT("Text"),

        /**
         * Edit wiki syntax using a visual editor.
         */
        WYSIWYG("Wysiwyg");

        private static final Map<String, EditorType> editorTypeMap =
            Arrays.stream(EditorType.values()).collect(Collectors.toMap(e -> e.value.toLowerCase(), e -> e));

        private final String value;

        /**
         * Retreive the {@link EditorType} based on its value.
         *

         * The search is case insensitive.
         *
         * @param value the value of the editor type
         * @return the editor type matching the value or null
         * @since 10.7RC1
         */
        public static EditorType getByValue(String value)
        {
            return value != null ? editorTypeMap.get(value.toLowerCase()) : null;
        }

        private EditorType(String value)
        {
            this.value = value;
        }

        @Override
        public String toString()
        {
            return this.value;
        }
    }

    /**
     * Possible values for the contenttype meta property.
     *

     * Indicates what kind of content this field contains (wiki, plain text, etc.).
     *
     * @since 8.3
     */
    public enum ContentType
    {
        /**
         * Plain text without any known syntax.
         */
        PURE_TEXT("PureText"),

        /**
         * Wiki content.
         */
        WIKI_TEXT("FullyRenderedText"),

        /**
         * Velocity content.
         */
        VELOCITY_CODE("VelocityCode"),

        /**
         * Velocity content producing wiki content.
         *
         * @since 13.0
         */
        VELOCITYWIKI("VelocityWiki");

        private static final Map<String, ContentType> contentTypeMap =
            Arrays.stream(ContentType.values()).collect(Collectors.toMap(c -> c.value.toLowerCase(), c -> c));

        private final String value;

        /**
         * Retreive the {@link ContentType} based on its value.
         *

         * The search is case insensitive.
         *
         * @param value the value of the content type
         * @return the content type matching the value or null
         * @since 10.7RC1
         */
        public static ContentType getByValue(String value)
        {
            return value != null ? contentTypeMap.get(value.toLowerCase()) : null;
        }

        private ContentType(String value)
        {
            this.value = value;
        }

        @Override
        public String toString()
        {
            return this.value;
        }
    }

    private static final long serialVersionUID = 1L;

    private static final String XCLASSNAME = "textarea";

    private static final Logger LOGGER = LoggerFactory.getLogger(TextAreaClass.class);

    public TextAreaClass(PropertyMetaClass wclass)
    {
        super(XCLASSNAME, "Text Area", wclass);

        setSize(40);
        setRows(5);
    }

    public TextAreaClass()
    {
        this(null);
    }

    /**
     * @param contentType the content type
     * @return the editor type compatible with the passed content type, null if several are compatible
     */
    public static EditorType getEditorType(ContentType contentType, EditorType def)
    {
        if (contentType != null && contentType != ContentType.WIKI_TEXT) {
            return EditorType.PURE_TEXT;
        }

        return def;
    }

    /**
     * @param contentType the content type value
     * @param def the current editor type
     * @return the editor type compatible with the passed content type, def if several are compatible
     * @since 10.7RC1
     */
    public static EditorType getEditorType(String contentType, EditorType def)
    {
        return getEditorType(ContentType.getByValue(contentType), def);
    }

    /**
     * @param editorType the editor type
     * @return the content type compatible with the passed editor type, null if several are compatible
     */
    public static ContentType getContentType(EditorType editorType, ContentType def)
    {
        if (editorType != EditorType.PURE_TEXT) {
            return ContentType.WIKI_TEXT;
        }

        return def;
    }

    @Override
    public BaseProperty newProperty()
    {
        BaseProperty property = new LargeStringProperty();
        property.setName(getName());

        return property;
    }

    public int getRows()
    {
        return getIntValue("rows");
    }

    public void setRows(int rows)
    {
        setIntValue("rows", rows);
    }

    public String getEditor()
    {
        String editor = getStringValue("editor").toLowerCase();
        if (EditorType.getByValue(editor) == null) {
            EditorType compatibleEditor = getEditorType(getContentType(), null);
            if (compatibleEditor != null) {
                return compatibleEditor.value.toLowerCase();
            }
        }

        return editor;
    }

    /**
     * Sets the editor meta property.
     *
     * @param editor the editor type
     * @since 8.2RC1
     */
    public void setEditor(String editor)
    {
        setStringValue("editor", editor);
    }

    /**
     * Sets the editor meta property.
     *
     * @param editorType the editor type
     * @since 8.3
     */
    public void setEditor(EditorType editorType)
    {
        setEditor(editorType.toString());

        // Make sure the content type is compatible
        ContentType compatible = getContentType(editorType, null);
        if (compatible != null) {
            setContentType(compatible);
        }
    }

    public String getContentType()
    {
        String result = getStringValue("contenttype").toLowerCase();
        if (result.isEmpty()) {
            result = ContentType.WIKI_TEXT.toString().toLowerCase();
        }

        return result;
    }

    public void setContentType(String contentType)
    {
        setStringValue("contenttype", contentType);
    }

    /**
     * @param contentType the content type
     * @since 8.3
     */
    public void setContentType(ContentType contentType)
    {
        setContentType(contentType.toString());

        // Make sure the editor type is compatible
        EditorType compatible = getEditorType(contentType, null);
        if (compatible != null) {
            setEditor(compatible);
        }
    }

    public boolean isWysiwyg(XWikiContext context)
    {
        return "wysiwyg".equals(getEditorType(context));
    }

    private String getEditorType(XWikiContext context)
    {
        String editorType = null;
        if (context != null && context.getRequest() != null) {
            editorType = context.getRequest().get("xeditmode");
        }
        if (isEmptyValue(editorType)) {
            editorType = getEditor();
            if (isEmptyValue(editorType) && context != null && context.getWiki() != null) {
                editorType = context.getWiki().getEditorPreference(context);
            }
        }
        return isEmptyValue(editorType) ? null : editorType.toLowerCase();
    }

    private boolean isEmptyValue(String value)
    {
        // See XWIKI-10853: Some static lists in XWiki.XWikiPreferences have the "---" value
        return StringUtils.isEmpty(value) || "---".equals(value);
    }

    /**
     * @return true if the content of this text area is not a wiki syntax content
     */
    public boolean isWikiContent()
    {
        String contentType = getContentType();

        if (contentType != null && !contentType.equals("puretext") && !contentType.equals("velocitycode")) {
            return true;
        } else {
            return false;
        }
    }

    /**
     * Indicate if the content of this property should be executed in a restricted content (provided the type indicate
     * that this content should be executed).
     *
     * @return true if the content of this property should be executed in a restricted content, false otherwise
     * @since 14.10
     * @since 14.4.7
     * @since 13.10.11
     */
    @Unstable
    public boolean isRestricted()
    {
        return getIntValue("restricted", 0) == 1;
    }

    /**
     * Indicate if the content of this property should be executed in a restricted content (provided the type indicate
     * that this content should be executed).
     *
     * @param restricted true if the content of this property should be executed in a restricted content, false
     *            otherwise
     * @since 14.10
     * @since 14.4.7
     * @since 13.10.11
     */
    @Unstable
    public void setRestricted(boolean restricted)
    {
        setIntValue("restricted", restricted ? 1 : 0);
    }

    @Override
    public void displayEdit(StringBuffer buffer, String name, String prefix, BaseCollection object,
        XWikiContext context)
    {
        String editorType = getEditorType(context);
        EditorManager editorManager = Utils.getComponent(EditorManager.class);
        Editor<SyntaxContent> editor = editorManager.getDefaultEditor(SyntaxContent.class, editorType);
        XWikiDocument ownerDocument = getObjectDocument(object, context);
        Map<String, Object> parameters = new HashMap<>();
        String fieldName = prefix + name;
        parameters.put("id", fieldName);
        parameters.put("name", fieldName);
        parameters.put("cols", getSize());
        parameters.put("rows", getRows());
        parameters.put("disabled", isDisabled());
        parameters.put("restricted", isRestricted() || (ownerDocument != null && ownerDocument.isRestricted()));
        parameters.put("sourceDocumentReference", object.getDocumentReference());
        Syntax syntax = null;
        String contentType = getContentType();

        // We set the syntax by first checking the content type: if it's pure text or velocity code
        // the syntax is necessarily plain syntax.
        // Else we check if the wanted editor is puretext: in such case we also consider that the syntax is plain/text
        // finally we fallback on actual document syntax.
        // FIXME: if the content type is WIKI_TEXT we should probably force the syntax to Wiki syntax, but which one:
        // 2.0, 2.1?
        if (StringUtils.equalsIgnoreCase(ContentType.PURE_TEXT.toString(), contentType)
            || StringUtils.equalsIgnoreCase(ContentType.VELOCITY_CODE.toString(), contentType))
        {
            syntax = Syntax.PLAIN_1_0;
        } else {
            syntax = "puretext".equals(editorType) ? Syntax.PLAIN_1_0 : getObjectDocumentSyntax(object, context);
        }
        SyntaxContent syntaxContent = new SyntaxContent(object.getStringValue(name), syntax);
        try {
            buffer.append(editor.render(syntaxContent, parameters));
        } catch (EditException e) {
            LOGGER.error("Failed to display the text area property.", e);
        }
    }

    @Override
    public void displayView(StringBuffer buffer, String name, String prefix, BaseCollection object,
        XWikiContext context)
    {
        displayView(buffer, name, prefix, object, true, context);
    }

    @Override
    public void displayView(StringBuffer buffer, String name, String prefix, BaseCollection object, boolean isolated,
        XWikiContext context)
    {
        String contentTypeString = getContentType();
        ContentType contentType = ContentType.getByValue(contentTypeString);

        if (contentType == ContentType.PURE_TEXT) {
            super.displayView(buffer, name, prefix, object, context);
        } else if (contentType == ContentType.VELOCITY_CODE) {
            StringBuffer result = new StringBuffer();
            super.displayView(result, name, prefix, object, context);
            if (getObjectDocumentSyntax(object, context).equals(Syntax.XWIKI_1_0)) {
                buffer.append(context.getWiki().parseContent(result.toString(), context));
            } else {
                // Don't do anything since this mode is deprecated and not supported in the new rendering.
                buffer.append(result);
            }
        } else {
            BaseProperty property = (BaseProperty) object.safeget(name);
            if (property != null) {
                String content = property.toText();
                XWikiDocument sdoc = getObjectDocument(object, context);

                if (sdoc != null) {
                    if (contentType == ContentType.VELOCITYWIKI) {
                        // Start with a pass of Velocity
                        // TODO: maybe make velocity+wiki a syntax so that getRenderedContent can directly take care
                        // of that
                        VelocityEvaluator velocityEvaluator = Utils.getComponent(VelocityEvaluator.class);
                        content = velocityEvaluator.evaluateVelocityNoException(content,
                            isolated ? sdoc.getDocumentReference() : null);
                    }

                    // Make sure the right author is used to execute the textarea
                    // Clone the document to void messaging with the cache
                    if (!Objects.equals(sdoc.getAuthors().getEffectiveMetadataAuthor(),
                        sdoc.getAuthors().getContentAuthor())) {
                        sdoc = sdoc.clone();
                        sdoc.getAuthors().setContentAuthor(sdoc.getAuthors().getEffectiveMetadataAuthor());
                    }

                    buffer.append(context.getDoc().getRenderedContent(content, sdoc.getSyntax(), isRestricted(), sdoc,
                        isolated, context));
                } else {
                    buffer.append(content);
                }
            }
        }
    }

    private XWikiDocument getObjectDocument(BaseCollection object, XWikiContext context)
    {
        try {
            XWikiDocument doc = object.getOwnerDocument();
            if (doc == null) {
                doc = context.getWiki().getDocument(object.getDocumentReference(), context);
            }

            return doc;
        } catch (Exception e) {
            // Used to convert a Document Reference to string (compact form without the wiki part if it matches
            // the current wiki).
            LOGGER.warn(
                "Error while getting the syntax corresponding to object [{}]. "
                    + "Defaulting to using XWiki 1.0 syntax. Internal error [{}]",
                object.getReference(), ExceptionUtils.getRootCauseMessage(e));
        }

        return null;
    }

    private Syntax getObjectDocumentSyntax(BaseCollection object, XWikiContext context)
    {
        XWikiDocument doc = getObjectDocument(object, context);

        return doc != null && doc.getSyntax() != null ? doc.getSyntax() : Syntax.XWIKI_1_0;
    }
}


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/web/CreateAction.java
### 代码内容：
/*
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package com.xpn.xwiki.web;

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

import javax.inject.Named;
import javax.inject.Provider;
import javax.inject.Singleton;
import javax.script.ScriptContext;

import org.apache.commons.lang3.StringUtils;
import org.xwiki.component.annotation.Component;
import org.xwiki.csrf.CSRFToken;
import org.xwiki.model.reference.DocumentReference;
import org.xwiki.model.reference.EntityReferenceSerializer;
import org.xwiki.model.reference.SpaceReference;
import org.xwiki.security.authorization.ContextualAuthorizationManager;
import org.xwiki.security.authorization.Right;

import com.xpn.xwiki.XWiki;
import com.xpn.xwiki.XWikiContext;
import com.xpn.xwiki.XWikiException;
import com.xpn.xwiki.doc.XWikiDocument;
import com.xpn.xwiki.objects.BaseObject;
import com.xpn.xwiki.util.Util;

/**
 * Create document action.
 *
 * @version $Id$
 * @since 2.4M2
 */
@Component
@Named("create")
@Singleton
public class CreateAction extends XWikiAction
{
    /**
     * The name of the create.vm template to render.
     */
    private static final String CREATE_TEMPLATE = "create";

    /**
     * The name of the parent parameter.
     */
    private static final String PARENT = "parent";

    /**
     * The name of the space reference parameter.
     */
    private static final String SPACE_REFERENCE = "spaceReference";

    /**
     * The name parameter.
     */
    private static final String NAME = "name";

    /**
     * The name of the template field inside the template provider, or the template parameter which can be sent
     * directly, without passing through the template provider.
     */
    private static final String TEMPLATE = "template";

    /**
     * Internal name for a flag determining if we are creating a Nested Space or a terminal document.
     */
    private static final String IS_SPACE = "isSpace";

    /**
     * Space homepage document name.
     */
    private static final String WEBHOME = "WebHome";

    /**
     * Local entity reference serializer hint.
     */
    private static final String LOCAL_SERIALIZER_HINT = "local";

    /**
     * The action to perform when creating a new page from a template.
     *
     * @version $Id$
     */
    private enum ActionOnCreate
    {
        /**
         * Go to edit mode without saving.
         */
        EDIT("edit"),

        /**
         * Save and then go to edit mode.
         */
        SAVE_AND_EDIT("saveandedit"),

        /**
         * Save and then go to view mode.
         */
        SAVE_AND_VIEW("saveandview");

        private static final Map<String, ActionOnCreate> BY_ACTION = new HashMap<>();

        static {
            for (ActionOnCreate actionOnCreate : values()) {
                BY_ACTION.put(actionOnCreate.action, actionOnCreate);
            }
        }

        private final String action;

        ActionOnCreate(String action)
        {
            this.action = action;
        }

        public static ActionOnCreate valueOfAction(String action)
        {
            return BY_ACTION.get(action);
        }
    }

    /**
     * Default constructor.
     */
    public CreateAction()
    {
        this.waitForXWikiInitialization = false;
    }

    @Override
    public String render(XWikiContext context) throws XWikiException
    {
        CreateActionRequestHandler handler = new CreateActionRequestHandler(context);

        // Read the request and extract the passed information.
        handler.processRequest();

        // Save the determined values so we have them available in the action template.
        ScriptContext scontext = getCurrentScriptContext();
        scontext.setAttribute(SPACE_REFERENCE, handler.getSpaceReference(), ScriptContext.ENGINE_SCOPE);
        scontext.setAttribute(NAME, handler.getName(), ScriptContext.ENGINE_SCOPE);
        scontext.setAttribute(IS_SPACE, handler.isSpace(), ScriptContext.ENGINE_SCOPE);
        // put the available templates on the context, for the .vm to not compute them again
        scontext.setAttribute("availableTemplateProviders", handler.getAvailableTemplateProviders(),
            ScriptContext.ENGINE_SCOPE);
        scontext.setAttribute("recommendedTemplateProviders", handler.getRecommendedTemplateProviders(),
            ScriptContext.ENGINE_SCOPE);

        DocumentReference newDocumentReference = handler.getNewDocumentReference();
        if (newDocumentReference == null) {
            // There is information still missing, go back to the template and fill it.
            return CREATE_TEMPLATE;
        }

        // Check if the creation in the spaceReference is allowed.
        if (!handler.isTemplateProviderAllowedToCreateInCurrentSpace()) {
            // The selected template provider is not usable in the selected location. Go back to the template and pick
            // something else.
            return CREATE_TEMPLATE;
        }

        // Checking the rights to create the new document.
        // Note: Note checking the logical spaceReference, but the space of the final actual document reference, since
        // that is where we are creating the new document.
        checkRights(newDocumentReference.getLastSpaceReference(), context);

        // Check if the document to create already exists and if it respects the name strategy
        XWikiDocument newDocument = context.getWiki().getDocument(newDocumentReference, context);
        if (handler.isDocumentAlreadyExisting(newDocument) || handler.isDocumentPathTooLong(newDocumentReference)
            || !this.isEntityReferenceNameValid(newDocumentReference)) {
            return CREATE_TEMPLATE;
        }

        // Verify if the "type" of document to create has been set, even if we currently do not use it in the action.
        // The goal is let the user be able to chose it, which have some consequences in the UI (thanks to javascript).
        // See: https://jira.xwiki.org/browse/XWIKI-12580
        // Note: we do not need the "type" if we have a template provider: the type of the new document will be the type
        // of the template.
        // TODO: handle this type in doCreate() that we call above (see: https://jira.xwiki.org/browse/XWIKI-12585).
        if (StringUtils.isBlank(handler.getType()) && !handler.hasTemplate()) {
            return CREATE_TEMPLATE;
        }

        // create is finally valid, can be executed
        doCreate(context, newDocument, handler.isSpace(), handler.getTemplateProvider());

        return null;
    }

    /**
     * @param context the XWiki context
     * @param spaceReference the reference of the space where the new document will be created
     * @throws XWikiException in case the permission to create a new document in the specified space is denied
     */
    private void checkRights(SpaceReference spaceReference, XWikiContext context) throws XWikiException
    {
        ContextualAuthorizationManager authManager = Utils.getComponent(ContextualAuthorizationManager.class);
        if (!authManager.hasAccess(Right.EDIT, spaceReference)) {
            Object[] args = { spaceReference.toString(), context.getUser() };
            throw new XWikiException(XWikiException.MODULE_XWIKI_ACCESS, XWikiException.ERROR_XWIKI_ACCESS_DENIED,
                "The creation of a document into the space {0} has been denied to user {1}", null, args);
        }
    }

    /**
     * Actually executes the create, after all preconditions have been verified.
     *
     * @param context the context of this action
     * @param newDocument the document to be created
     * @param isSpace whether the document is a space webhome or a page
     * @param templateProvider the template provider to create from
     * @throws XWikiException in case anything goes wrong accessing xwiki documents
     */
    private void doCreate(XWikiContext context, XWikiDocument newDocument, boolean isSpace, BaseObject templateProvider)
        throws XWikiException
    {
        XWikiRequest request = context.getRequest();
        XWikiDocument doc = context.getDoc();

        String parent = getParent(request, doc, isSpace, context);

        // get the title of the page to create, as specified in the parameters
        String title = getTitle(request, newDocument, isSpace);

        // get the template from the template parameter, to allow creation directly from template, without
        // forcing to create a template provider for each template creation
        String template = getTemplate(templateProvider, request);

        // Read from the template provide the action to perform when creating the page.
        ActionOnCreate actionOnCreate = getActionOnCreate(templateProvider);

        String action = null;
        if (actionOnCreate == ActionOnCreate.SAVE_AND_EDIT) {
            initAndSaveDocument(context, newDocument, title, template, parent);
            action = newDocument.getDefaultEditMode(context);
        } else {
            action = actionOnCreate == ActionOnCreate.SAVE_AND_VIEW ? "save" : getEditMode(template, context);
        }

        // Perform a redirection to the selected action of the document to create.
        String redirectParams = getRedirectParameters(parent, title, template, actionOnCreate);
        String redirectURL = newDocument.getURL(action, redirectParams, context);
        redirectURL = context.getResponse().encodeRedirectURL(redirectURL);
        if (context.getRequest().getParameterMap().containsKey("ajax")) {
            // If this template is displayed from a modal popup, send a header in the response notifying that a
            // redirect must be performed in the calling page.
            context.getResponse().setHeader("redirect", redirectURL);
        } else {
            // Perform the redirect
            sendRedirect(context.getResponse(), redirectURL);
        }
    }

    /**
     * Initialize and save the new document before editing it. Follow the steps done by the Save action.
     *
     * @param context the XWiki context
     * @param newDocument the document being created
     * @param title the document title
     * @param template the template to copy
     * @param parent the parent document
     * @throws XWikiException if copying the template or saving the document fails
     */
    private void initAndSaveDocument(XWikiContext context, XWikiDocument newDocument, String title, String template,
        String parent) throws XWikiException
    {
        XWiki xwiki = context.getWiki();

        // Set the locale and default locale, considering that we're creating the original version of the document
        // (not a translation).
        newDocument.setLocale(Locale.ROOT);
        if (newDocument.getDefaultLocale() == Locale.ROOT) {
            newDocument.setDefaultLocale(xwiki.getLocalePreference(context));
        }

        // Copy the template.
        readFromTemplate(newDocument, template, context);

        // Set the parent field.
        if (!StringUtils.isEmpty(parent)) {
            DocumentReference parentReference = getCurrentMixedDocumentReferenceResolver().resolve(parent);
            newDocument.setParentReference(parentReference);
        }

        // Set the document title
        if (title != null) {
            newDocument.setTitle(title);
        }

        // Set the author and creator.
        DocumentReference currentUserReference = context.getUserReference();
        newDocument.setAuthorReference(currentUserReference);
        newDocument.setCreatorReference(currentUserReference);

        // Make sure the user is allowed to make this modification
        xwiki.checkSavingDocument(currentUserReference, newDocument, context);

        xwiki.saveDocument(newDocument, context);
    }

    private String getRedirectParameters(String parent, String title, String template, ActionOnCreate actionOnCreate)
    {
        if (actionOnCreate == ActionOnCreate.SAVE_AND_EDIT) {
            // We don't need to pass any parameters because the document is saved before the redirect using the
            // parameter values.
            return null;
        }

        String redirectParams = "template=" + Util.encodeURI(template, null);
        if (parent != null) {
            redirectParams += "&parent=" + Util.encodeURI(parent, null);
        }
        if (title != null) {
            redirectParams += "&title=" + Util.encodeURI(title, null);
        }
        // Both the save and the edit action might require a CSRF token
        CSRFToken csrf = Utils.getComponent(CSRFToken.class);
        redirectParams += "&form_token=" + Util.encodeURI(csrf.getToken(), null);

        return redirectParams;
    }

    /**
     * @param templateProvider the set template provider, if any
     * @param request the request on which to fallback
     * @return the string reference of the document to use as template or {@code ""} if none set
     */
    private String getTemplate(BaseObject templateProvider, XWikiRequest request)
    {
        String result = "";

        if (templateProvider != null) {
            result = templateProvider.getStringValue(TEMPLATE);
        } else if (request.getParameter(TEMPLATE) != null) {
            result = request.getParameter(TEMPLATE);
        }

        return result;
    }

    /**
     * @param request the current request for which this action is executed
     * @param doc the current document
     * @param isSpace {@code true} if the request is to create a space, {@code false} if a page should be created
     * @param context the XWiki context
     * @return the serialized reference of the parent to create the document for
     */
    private String getParent(XWikiRequest request, XWikiDocument doc, boolean isSpace, XWikiContext context)
    {
        // This template can be passed a parent document reference in parameter (using the "parent" parameter).
        // If a parent parameter is passed, use it to set the parent when creating the new Page or Space.
        // If no parent parameter was passed:
        // * use the current document
        // ** if we're creating a new page and if the current document exists or
        // * use the Main space's WebHome
        // ** if we're creating a new page and the current document does not exist.
        String parent = request.getParameter(PARENT);
        if (StringUtils.isEmpty(parent)) {
            EntityReferenceSerializer<String> localSerializer =
                Utils.getComponent(EntityReferenceSerializer.TYPE_STRING, LOCAL_SERIALIZER_HINT);

            if (doc.isNew()) {
                // Use the Main space's WebHome.
                Provider<DocumentReference> defaultDocumentReferenceProvider =
                    Utils.getComponent(DocumentReference.TYPE_PROVIDER);

                DocumentReference parentRef =
                    defaultDocumentReferenceProvider.get().setWikiReference(context.getWikiReference());

                parent = localSerializer.serialize(parentRef);
            } else {
                // Use the current document.
                DocumentReference parentRef = doc.getDocumentReference();

                parent = localSerializer.serialize(parentRef);
            }
        }

        return parent;
    }

    /**
     * @param request the current request for which this action is executed
     * @param newDocument the document to be created
     * @param isSpace {@code true} if the request is to create a space, {@code false} if a page should be created
     * @return the title of the page to be created. If no request parameter is set, the page name is returned for a new
     *         page and the space name is returned for a new space
     */
    private String getTitle(XWikiRequest request, XWikiDocument newDocument, boolean isSpace)
    {
        String title = request.getParameter("title");
        if (StringUtils.isEmpty(title)) {
            if (isSpace) {
                title = newDocument.getDocumentReference().getLastSpaceReference().getName();
            } else {
                title = newDocument.getDocumentReference().getName();
                // Avoid WebHome titles for pages that are really space homepages.
                if (WEBHOME.equals(title)) {
                    title = newDocument.getDocumentReference().getLastSpaceReference().getName();
                }
            }
        }

        return title;
    }

    /**
     * @param templateProvider the template provider for this creation
     * @return {@code true} if the created document should be saved on create, before editing, {@code false} otherwise
     */
    private ActionOnCreate getActionOnCreate(BaseObject templateProvider)
    {
        if (templateProvider != null) {
            String action = templateProvider.getStringValue("action");
            ActionOnCreate actionOnCreate = ActionOnCreate.valueOfAction(action);
            if (actionOnCreate != null) {
                return actionOnCreate;
            }
        }

        // Default action when creating a page from a template.
        return ActionOnCreate.EDIT;
    }

    /**
     * @param template the template to create document from
     * @param context the context of the current request
     * @return the default edit mode for a document created from the passed template
     * @throws XWikiException in case something goes wrong accessing template document
     */
    private String getEditMode(String template, XWikiContext context)
        throws XWikiException
    {
        // Determine the edit action (edit/inline) for the newly created document, if a template is passed it is
        // used to determine the action. Default is 'edit'.
        String editAction = ActionOnCreate.EDIT.name().toLowerCase();
        XWiki xwiki = context.getWiki();
        if (!StringUtils.isEmpty(template)) {
            DocumentReference templateReference = getCurrentMixedDocumentReferenceResolver().resolve(template);
            if (xwiki.exists(templateReference, context)) {
                editAction = xwiki.getDocument(templateReference, context).getDefaultEditMode(context);
            }
        }

        return editAction;
    }
}

## 内容2
### 文件路径：
xwiki-platform-core/xwiki-platform-web/xwiki-platform-web-templates/src/main/resources/templates/createinline.vm
### 代码内容：
## ---------------------------------------------------------------------------
## See the NOTICE file distributed with this work for additional
## information regarding copyright ownership.
##
## This is free software; you can redistribute it and/or modify it
## under the terms of the GNU Lesser General Public License as
## published by the Free Software Foundation; either version 2.1 of
## the License, or (at your option) any later version.
##
## This software is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public
## License along with this software; if not, write to the Free
## Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
## 02110-1301 USA, or see the FSF site: http://www.fsf.org.
## ---------------------------------------------------------------------------
## ---------------------------------------------------------------------------------------------------------
## This template is called by the create action which binds some context variables as it executes, based on
## the request and the current document. These variables can be used in this template:
## * $spaceReference - the space reference of the new document, read from the "spaceReference" parameter
## * $name - the name to use for the new document, read from the "name" parameter
## * $isSpace - true if we are creating a non-terminal document ($name is the space name), false if we are
##              creating a terminal document ($name is the document name). Determined by the create action
## * $availableTemplateProviders - list of template provider documents available from the current space
##
## Note: Make sure to use these bindings instead of directly using the request parameters, as the bindings
## also consider backwards compatibility and convert older "space" and "page" parameters if they are passed.
## ---------------------------------------------------------------------------------------------------------

## ---------------------------------------------------------------------------------------------------------
## This template can be passed a parent document reference in parameter (using the "parent" parameter).
## If a parent parameter is passed, use it to set the parent when creating the new page.
## If no parent parameter was passed, the create action will determine it to be the current document if it
## exists or the Main space's webhome if the current document does not exist.
## ---------------------------------------------------------------------------------------------------------
#set ($parent = "$!request.getParameter('parent')")

## ---------------------------------------------------------------------------------------------------------
## This parent can be passed a title for the document to create (using the "title" parameter).
## The title is used to automatically compute a page name, which can then be customized by the user.
## If no title is given, the page name (if set) will be used as title.
## ---------------------------------------------------------------------------------------------------------
#if ("$!request.title" != '')
  #set ($title = "$!request.title")
#else
  #set ($title = "$!{escapetool.velocity($name)}")
#end

## ---------------------------------------------------------------------------------------------------------
## Get the passed template provider, if any
## ---------------------------------------------------------------------------------------------------------
#set($templateProvider = "$!request.templateprovider")
## Get the template as well, since in case template provider is missing, template should be used,
## to allow creation from template directly, without necessarily going through template provider.
#set($template = "$!request.template")

## ---------------------------------------------------------------------------------------------------------
## If there was an exception creating the page because of invalid space, notify.
## Should set the other variables only if there is no exception. Otherwise, if there's an exception other than the
## 11016 one, nothing will be displayed, depending on the other passed parameters.
## ---------------------------------------------------------------------------------------------------------
#set($exception = $createException)
## check if the exception is about the non-allowed spaces for template
#if("$!exception" != '' && $exception.code == 11016)
  <div class="box errormessage">
    #set($allowedSpaces = $createAllowedSpaces)
    #if ($allowedSpaces.size() == 1)
      $services.localization.render('core.create.template.allowedspace.inline', [$templateProvider, $allowedSpaces.get(0)])
    #else
      $services.localization.render('core.create.template.allowedspaces.inline', [$templateProvider, $allowedSpaces.toString()])
    #end
  </div>
#end
## check if the exception is about the document which already exists
#if("$!exception" != '' && $exception.code == 11002)
  <div class='box errormessage'>
      ## Use the 'existingDocumentReference' context binding set by the create action for this case.
      $services.localization.render('core.create.page.error.docalreadyexists',
        ["${existingDocumentReference}",
         $xwiki.getURL($existingDocumentReference, 'view', ''),
         $xwiki.getURL($existingDocumentReference, 'edit', '')
        ]
      )
  </div>
#end
## check if the exception is about the document name being invalid
#if("$!exception" != '' && $exception.code == 11018)
<div class='box errormessage'>
  ## Use the 'invalidNameReference' context binding set by the create action for this case.
  $services.localization.render('entitynamevalidation.create.invalidname', [$invalidNameReference])
</div>
#end

## check if the exception is about the document having a path too long
#template('hierarchy_macros.vm')
#if("$!exception" != '' && $exception.code == 11017)
  #set ($options = {})
  #set ($documentReference = $services.model.resolveDocument($tooLongPath))
  <div class='box errormessage'>
      $services.localization.render('core.create.page.error.docpathtoolong',
        ["<p>#hierarchy($documentReference, $options)</p>",
          $doc.getLocalReferenceMaxLength(),
          $tooLongPath.length()
        ]
      )
  </div>
#end

## ---------------------------------------------------------------------------------------------------------
## Determine if we need to do extra checks for a deprecated, pre-NestedSpaces request to create a space.
## ---------------------------------------------------------------------------------------------------------
#set ($deprecatedSpaceCreate = "$!request.tocreate" == 'space')

## ---------------------------------------------------------------------------------------------------------
## Note: The list of available template providers is computed in the action and set on the context under
## the "availableTemplateProviders" binding.
## ---------------------------------------------------------------------------------------------------------

## ---------------------------------------------------------------------------------------------------------
## Macro for displaying the available types and templates and changing target space rules accordingly
## ---------------------------------------------------------------------------------------------------------
#macro (displayTypes)
  #if ($template == '')
    #set ($blankTerminalState = !$isSpace)
    #set ($options = [
      {
        'name': $services.localization.render('core.create.type.default'),
        'options': [
          {
            'name': $services.localization.render('core.create.type.blank'),
            'value': 'blank',
            'description': $services.localization.render('core.create.type.blank.description'),
            'icon': 'file-white',
            'data': {
              'type': 'blank',
              'terminal' : "$blankTerminalState"
            }
          }
        ]
      }])
    #if ($xwiki.exists($services.model.createDocumentReference('', 'XWiki', 'OfficeImporter')) && $services.officemanager.isConnected())
      ## TODO: handle this use case with an extension point
      #set ($discard = $options[0].options.add({
        'name': $services.localization.render('office.createForm.type.name'),
        'value': 'office',
        'description': $services.localization.render('office.createForm.type.description'),
        'icon': 'file-word',
        'data': {
          'type':'office'
        }
      }))
    #end
    #if (!$availableTemplateProviders.isEmpty())
      #set ($templateOptions = [])
      #set ($discard = $options.add({'name': $services.localization.render('core.create.type.templates'), 'options': $templateOptions}))
      #foreach($tpdoc in $availableTemplateProviders)
        #set ($tpobj = $tpdoc.getObject('XWiki.TemplateProviderClass'))
        #set ($tpdocRef = $services.model.serialize($tpdoc.documentReference, 'local'))
        ##
        ## Extract and save in data-* attributes list of allowed spaces to be used in the JavaScript validation of the spaceReference input.
        ##
        #set($jsAllowedSpacesArray = '[]')## Reset any previous value
        #set($allowedSpaces = $tpobj.getValue('creationRestrictions'))
        #if($allowedSpaces.size() == 0)
          ## Backwards compatibility for Template Providers created before 8.3M2.
          #set($allowedSpaces = $tpobj.getValue('spaces'))
        #end
        ## Reset to an empty list when no restrictions are set.
        #if ("$!allowedSpaces" == '')
          #set ($allowedSpaces = [])
        #end
        #if($allowedSpaces.size() > 0)
          #set($jsAllowedSpacesArray = $jsontool.serialize($allowedSpaces))
        #end
        ## Compute the error message.
        #set ($templateProviderName = $services.localization.render($tpobj.getValue('name')))
        #if($allowedSpaces.isEmpty())
          #set($message = '')
        #elseif($allowedSpaces.size() == 1)
          #set($message = $services.localization.render('core.create.template.allowedspace.inline', [$templateProviderName, $jsAllowedSpacesArray]))
        #else
          #set($message = $services.localization.render('core.create.template.allowedspaces.inline', [$templateProviderName, $jsAllowedSpacesArray]))
        #end
        ##
        ## Determine if the creation restrictions are just suggestions
        ##
        #set ($restrictionsAreSuggestions = ($tpobj.getValue('creationRestrictionsAreSuggestions') == 1))
        ##
        ## Determine if it's a terminal page template
        ##
        #set ($isTerminalProvider = $tpobj.getValue('terminal'))
        ## Check if this is an old template provider that has not been migrated (the 'type' property has not been
        ## replaced by the 'terminal' property).
        #set ($type = $tpobj.getValue('type'))
        #if ("$!isTerminalProvider" == '' && ("$!type" != '' || $type == ''))
          ## This must be an old template provider because the 'terminal' property is not set (or it was set to '---'
          ## from the UI) and the 'type' property is still present.
          #if ($type == 'space')
            #set ($isTerminalProvider = false)
          #else
            ## 'page' or '' both resolve to true, for backwards compatibility reasons.
            #set ($isTerminalProvider = true)
          #end
        #else
          #set ($isTerminalProvider = ($isTerminalProvider == 1))
        #end
        ##
        ## Display the template provider field option in the form.
        ##
        #set ($inputId = "xwiki-create-form-${foreach.count}")
        #set ($icon = $tpobj.getValue('icon'))
        #if ("$!icon" == '')
          #set($icon = 'file-white')
        #end
        #set ($discard = $templateOptions.add({
          'name': $services.localization.render($tpobj.getValue('name')),
          'value': "$tpdocRef",
          'description': $services.localization.render($tpobj.getValue('description')),
          'icon': $icon,
          'data': {
            'allowed-spaces': $jsAllowedSpacesArray,
            'allowed-spaces-message': $message,
            'restrictions-are-suggestions': $restrictionsAreSuggestions,
            'type': 'template',
            'terminal' : $isTerminalProvider
          }
        }))
      #end
    #end
    <dt>
      <label>$services.localization.render('core.create.type')</label>
      <span class="xHint">$escapetool.xml($services.localization.render('core.create.type.hint'))</span>
    </dt>
    #set ($defaultValue = $request.type)
    #if ("$!defaultValue" == '')
      #if ($recommendedTemplateProviders.size() > 0)
        #set ($defaultValue = $services.model.serialize($recommendedTemplateProviders[0].documentReference, 'local'))
      #else
        #set ($defaultValue = 'blank')
      #end
    #end
    <dd>#xwikiSelect('type', $options, $defaultValue, false, 'xwiki-select-adaptable-medium page-type', '', true)</dd>
  #else
    <input type="hidden" name="template" value="$escapetool.xml($template)" />
  #end
#end
#set ($discard = $xwiki.jsfx.use('js/xwiki/create.js', {'forceSkinAction': true}))

## ---------------------------------------------------------------------------------------------------------
## Macro used to extract a wiki's homepage reference.
## ---------------------------------------------------------------------------------------------------------
#macro (getWikiHomePageReference $wiki $return)
  #set ($_wikiHomePageReference = $services.wiki.getById($wiki).mainPageReference)
  #if (!$_wikiHomePageReference)
    #set ($wikiReference = $services.model.createWikiReference($wiki))
    #set ($_wikiHomePageReference = $services.model.resolveDocument('', 'default', $wikiReference))
  #end
  #set ($return = $NULL)
  #setVariable("$return" $_wikiHomePageReference)
#end

## ---------------------------------------------------------------------------------------------------------
## Display the form.
## ---------------------------------------------------------------------------------------------------------
## FIXME: Using the 'container' class when displayed in an ajax call by clicking on a Wanted Link so that it looks good (proper margins) in the popup.
<form action="$doc.getURL('create')" method="post" id="create" class="xform #if($request.ajax)container#end">
  <fieldset>

  ## Deprecated: Pass along any received page parent.
  <input type='hidden' name='parent' value="$!{escapetool.xml($parent)}"/>

  ## The "templateprovider" field is needed by the CreateAction, even empty.
  ## By the past, it was "xwiki/create.js" which created this field, but it was causing problems when the user sent the
  ## form before the JavaScript code was executed.
  <input type="hidden" name="templateprovider" id="templateprovider" value="" />

  <div class='row'>
    ## Hide the first column when displayed in an AJAX call by clicking on a Wanted Link (because we know the target
    ## location from the link reference) or when the current document is new (because the create action uses the location
    ## of the current document as target in this case).
    #if (!$request.ajax && !$doc.isNew())
      ## Determine the parent reference for the new document.
      #set ($parentReference = $spaceReference)
      #if (!$parentReference)
        ## No parent reference specified.
        ## We keep this code although we tested above that the current document is not new because in the future we may
        ## want to support changing the target location even if the current document is new.
        #if ($doc.isNew())
          ## Encourage the user to create the current document.
          #set ($parentReference = $doc.documentReference.parent)
          #if ($doc.documentReference.name == 'WebHome')
            #set ($parentReference = $parentReference.parent)
          #end
        #else
          #getWikiHomePageReference($doc.wiki $homeReference)
          #if ($doc.documentReference.equals($homeReference) || $deprecatedSpaceCreate)
            ## Encourage the user to create top level documents from the home page.
            #set ($parentReference = $doc.documentReference.wikiReference)
          #else
            ## Encourage the user to create a child or sibling of the current document.
            #set ($parentReference = $doc.documentReference.lastSpaceReference)
          #end
        #end
      #end

      ## Display the location picker.
      <div class='col-xs-12 col-lg-6'>
        #template('locationPicker_macros.vm')
        #locationPicker({
          'id': 'target',
          'title': {
            'label': 'core.create.title',
            'hint': 'core.create.title.hint',
            'name': 'title',
            'value': $title,
            'placeholder': 'core.create.name.placeholder'
          },
          'preview': {
            'label': 'core.create.locationPreview.label',
            'hint': 'core.create.locationPreview.hint'
          },
          'parent': {
            'label': 'core.create.spaceReference.label',
            'hint': 'core.create.spaceReference.hint',
            'name': 'spaceReference',
            'reference': $parentReference,
            'placeholder': 'core.create.spaceReference.placeholder'
          },
          'name': {
            'label': 'core.create.name.label',
            'hint': 'core.create.name.hint',
            'name': 'name',
            'value': $name,
            'placeholder': 'core.create.name.placeholder'
          }
        })
      </div>
    #else
      ## First column is hidden.
      ## Pass along the known values as hidden inputs.
      ##
      <input type='hidden' name='title' value="$!{escapetool.xml($title)}"/>
      <input type='hidden' id='name' name='name' value="$!{escapetool.xml($name)}" />
      #set ($spaceReferenceLocalString = $services.model.serialize($spaceReference, 'local'))
      <input type='hidden' id='spaceReference' name='spaceReference' value="$!{escapetool.xml($spaceReferenceLocalString)}" />
    #end
    ## FIXME: When displayed in an ajax call by clicking on a Wanted Link, the responsive classes consider the calling document (large screen)
    ## as the viewport and not the popup (small screen), so we can not use them since they create problems instead of fixing them.
    <div class='#if(!$request.ajax)col-xs-12 col-lg-6#end'>
      <dl>
        ## ---------------------------------------------------------------------------------------------------------
        ## Page type
        ## ---------------------------------------------------------------------------------------------------------
        #displayTypes()
        ## ---------------------------------------------------------------------------------------------------------
        ## Terminal page - Advanced users
        ## ---------------------------------------------------------------------------------------------------------
        #set ($hidden = '')
        #if (!($isAdvancedUser || $isSuperAdmin) || $deprecatedSpaceCreate)
          #set ($hidden = 'hidden')
        #end
        <dt class="$hidden">
          <input type="checkbox" id="terminal" name="tocreate" value="terminal" #if(!$isSpace)checked="checked"#end/>
          <label for="terminal">$services.localization.render('core.create.terminal.label')</label>
          ## Hidden input used to ensure that an unchecked terminal checkbox means non-terminal and that the default is not used by mistake.
          <input type="hidden" name="tocreate" value="nonterminal" />
        </dt>
        <dd class="$hidden">
          <span class="xHint">$services.localization.render('core.create.terminal.hint')</span>
        </dd>
      </dl>
    </div>
  </div>

  <div class='buttons'>
    <span class='buttonwrapper'>
      <input type='submit' class='button' value="$services.localization.render('create')"/>
    </span>
    <span class="buttonwrapper">
      <a class="secondary button" href="$doc.getURL()">$services.localization.render('cancel')</a>
    </span>
  </div>

  </fieldset>
</form>

Output:
【漏洞类型】跨站请求伪造（CSRF）漏洞
【严重性】High
【漏洞摘要】原始代码中的 `CreateAction` 类在执行创建文档的操作时，没有验证 CSRF 令牌。这意味着攻击者可以诱导已登录用户执行未经授权的操作，如创建恶意文档。具体来说，`render` 方法在检查文档是否存在、路径是否过长以及名称是否有效后，直接调用了 `doCreate` 方法，而没有验证传入的 CSRF 令牌。此外，在 `createinline.vm` 模板中，虽然生成了 CSRF 令牌，但没有将其包含在表单的隐藏字段中，导致客户端无法提交有效的 CSRF 令牌。
【关键代码模式】`render` 方法中的 `checkRights` 和 `doCreate` 调用，`createinline.vm` 模板中的 CSRF 令牌生成和表单字段。
【修复方法说明】修复方法通过在 `render` 方法中添加 CSRF 令牌的验证逻辑，并在 `createinline.vm` 模板中添加 CSRF 令牌的隐藏字段，确保每个创建请求都包含有效的 CSRF 令牌，从而防止 CSRF 攻击。