001/*
002    Licensed to the Apache Software Foundation (ASF) under one
003    or more contributor license agreements.  See the NOTICE file
004    distributed with this work for additional information
005    regarding copyright ownership.  The ASF licenses this file
006    to you under the Apache License, Version 2.0 (the
007    "License"); you may not use this file except in compliance
008    with the License.  You may obtain a copy of the License at
009
010       http://www.apache.org/licenses/LICENSE-2.0
011
012    Unless required by applicable law or agreed to in writing,
013    software distributed under the License is distributed on an
014    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015    KIND, either express or implied.  See the License for the
016    specific language governing permissions and limitations
017    under the License.
018 */
019package org.apache.wiki.markdown.extensions.jspwikilinks.postprocessor;
020
021import com.vladsch.flexmark.util.ast.Node;
022import com.vladsch.flexmark.util.ast.NodeTracker;
023import com.vladsch.flexmark.util.sequence.CharSubSequence;
024import org.apache.oro.text.regex.Pattern;
025import org.apache.wiki.api.core.Context;
026import org.apache.wiki.markdown.nodes.JSPWikiLink;
027import org.apache.wiki.parser.LinkParsingOperations;
028import org.apache.wiki.parser.MarkupParser;
029
030import java.util.List;
031
032
033/**
034 * {@link NodePostProcessorState} which further post processes external links.
035 */
036public class ExternalLinkNodePostProcessorState implements NodePostProcessorState< JSPWikiLink > {
037
038    private final Context wikiContext;
039    private final LinkParsingOperations linkOperations;
040    private final boolean isImageInlining;
041    private final List< Pattern > inlineImagePatterns;
042    private boolean m_useOutlinkImage = true;
043
044    public ExternalLinkNodePostProcessorState( final Context wikiContext,
045                                               final boolean isImageInlining,
046                                               final List< Pattern > inlineImagePatterns ) {
047        this.wikiContext = wikiContext;
048        this.linkOperations = new LinkParsingOperations( wikiContext );
049        this.isImageInlining = isImageInlining;
050        this.inlineImagePatterns = inlineImagePatterns;
051        this.m_useOutlinkImage = wikiContext.getBooleanWikiProperty( MarkupParser.PROP_USEOUTLINKIMAGE, m_useOutlinkImage );
052    }
053
054    /**
055     * {@inheritDoc}
056     *
057     * @see NodePostProcessorState#process(NodeTracker, Node)
058     */
059    @Override
060    public void process( final NodeTracker state, final JSPWikiLink link ) {
061        if( linkOperations.isImageLink( link.getUrl().toString(), isImageInlining, inlineImagePatterns ) ) {
062            new ImageLinkNodePostProcessorState( wikiContext, link.getUrl().toString(), link.hasRef() ).process( state, link );
063        } else {
064            link.setUrl( CharSubSequence.of( link.getUrl().toString() ) );
065            NodePostProcessorStateCommonOperations.addOutlinkImage( state, link, wikiContext, m_useOutlinkImage );
066        }
067    }
068
069}