cmshtmlimport.java

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/*
 * File   : $Source: /usr/local/cvs/opencms/src-modules/org/opencms/workplace/tools/database/CmsHtmlImport.java,v $
 * Date   : $Date: 2007-08-13 16:30:15 $
 * Version: $Revision: 1.17 $
 *
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) 2002 - 2007 Alkacon Software GmbH (http://www.alkacon.com)
 *
 * This library 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 library 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.
 *
 * For further information about Alkacon Software GmbH, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.opencms.workplace.tools.database;

import org.opencms.db.CmsDbIoException;
import org.opencms.file.CmsFolder;
import org.opencms.file.CmsObject;
import org.opencms.file.CmsProperty;
import org.opencms.file.CmsPropertyDefinition;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.file.types.CmsResourceTypeFolder;
import org.opencms.file.types.CmsResourceTypeImage;
import org.opencms.file.types.CmsResourceTypePlain;
import org.opencms.file.types.CmsResourceTypePointer;
import org.opencms.file.types.CmsResourceTypeXmlPage;
import org.opencms.i18n.CmsEncoder;
import org.opencms.i18n.CmsMessageContainer;
import org.opencms.importexport.CmsImportExportException;
import org.opencms.loader.CmsResourceManager;
import org.opencms.lock.CmsLock;
import org.opencms.lock.CmsLockType;
import org.opencms.main.CmsException;
import org.opencms.main.CmsIllegalArgumentException;
import org.opencms.main.CmsLog;
import org.opencms.main.OpenCms;
import org.opencms.relations.CmsLink;
import org.opencms.report.I_CmsReport;
import org.opencms.staticexport.CmsLinkTable;
import org.opencms.util.CmsStringUtil;
import org.opencms.xml.page.CmsXmlPage;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.StringTokenizer;

import org.apache.commons.collections.ExtendedProperties;
import org.apache.commons.logging.Log;

/**
 * This class implements the HTML->OpenCms Template converter for OpenCms 6.x.<p>
 * 
 * @author Michael Emmerich 
 * @author Armen Markarian 
 * @author Peter Bonrad
 * 
 * @version $Revision: 1.17 $ 
 * 
 * @since 6.0.0 
 */
public class CmsHtmlImport {

    /** The log object for this class. */
    private static final Log LOG = CmsLog.getLog(CmsHtmlImport.class);
    
    /** filename of the meta.properties file. */
    public static final String META_PROPERTIES = "meta.properties";

    /** the CmsObject to use. */
    private CmsObject m_cmsObject;

    /** the destination directory in the OpenCms VFS. */
    private String m_destinationDir;

    /** the download gallery name. */
    private String m_downloadGallery;

    /** the element name of the template. */
    private String m_element;

    /** the end pattern for extracting content. */
    private String m_endPattern;

    /** HashMap of all known extensions in OpenCms. */
    private Map m_extensions;

    /** Storage for external links. */
    private HashSet m_externalLinks;

    /** The file index contains all resourcenames in the real file system and their renamed ones in the OpenCms VFS. */
    private HashMap m_fileIndex;

    /** the HTML converter to parse and modifiy the content. */
    private CmsHtmlImportConverter m_htmlConverter;

    /** the image gallery name. */
    private String m_imageGallery;

    /** Storage for image alt tags, it is filled by the HtmlConverter each time a new image is found. */
    private HashMap m_imageInfo;

    /** the input directory in the "real" file system. */
    private String m_inputDir;

    /** the encoding used for all imported input files. */
    private String m_inputEncoding;

    /** should broken links be kept. */
    private boolean m_keepBrokenLinks;

    /** leave downloads at the original location. */
    private boolean m_leaveDownloads;

    /** leave external links at the original location. */
    private boolean m_leaveExternalLinks;

    /** leave images at the original location. */
    private boolean m_leaveImages;

    /** the external link gallery name. */
    private String m_linkGallery;

    /** the locale use for content definition. */
    private String m_locale;

    /** the overwrite value new resources. */
    private boolean m_overwrite;

    /** Map with all parents in file system to OpenCms. */
    private HashMap m_parents;

    /** the report for the output. */
    private I_CmsReport m_report;

    /** the start pattern for extracting content. */
    private String m_startPattern;

    /** the template use for all pages. */
    private String m_template;

    /**
     * Default Constructor.<p>
     */
    public CmsHtmlImport() {

        m_overwrite = true;
        m_extensions = OpenCms.getResourceManager().getExtensionMapping();
        m_fileIndex = new HashMap();
        m_parents = new HashMap();
        m_imageInfo = new HashMap();
        m_externalLinks = new HashSet();
        m_htmlConverter = new CmsHtmlImportConverter(this, false);
    }

    /**
     * Creates a new import object for the given cms object.<p>
     * 
     * @param cms the current cms context
     */
    public CmsHtmlImport(CmsObject cms) {

        this();
        m_cmsObject = cms;
    }

    /**
     * Calculates an absolute uri from a relative "uri" and the given absolute "baseUri".<p> 
     * 
     * If "uri" is already absolute, it is returned unchanged.
     * This method also returns "uri" unchanged if it is not well-formed.<p>
     *    
     * @param relativeUri the relative uri to calculate an absolute uri for
     * @param baseUri the base uri, this must be an absolute uri
     * @return an absolute uri calculated from "uri" and "baseUri"
     */
    public String getAbsoluteUri(String relativeUri, String baseUri) {

        if ((relativeUri == null) || (relativeUri.charAt(0) == '/') || (relativeUri.startsWith("#"))) {

            return relativeUri;
        }

        // if we are on a windows system, we must add a ":" in the uri later               
        String windowsAddition = "";
        if (File.separator.equals("\\")) {
            windowsAddition = ":";
        }

        try {
            URL baseUrl = new URL("file://");
            URL url = new URL(new URL(baseUrl, "file://" + baseUri), relativeUri);
            if (url.getQuery() == null) {
                if (url.getRef() == null) {
                    return url.getHost() + windowsAddition + url.getPath();
                } else {
                    return url.getHost() + windowsAddition + url.getPath() + "#" + url.getRef();
                }
            } else {
                return url.getHost() + windowsAddition + url.getPath() + "?" + url.getQuery();
            }
        } catch (MalformedURLException e) {
            return relativeUri;
        }
    }

    /**
     * Returns the destinationDir.<p>
     *
     * @return the destinationDir
     */
    public String getDestinationDir() {

        return m_destinationDir;
    }

    /**
     * Returns the downloadGallery.<p>
     *
     * @return the downloadGallery
     */
    public String getDownloadGallery() {

        return m_downloadGallery;
    }

    /**
     * Returns the element.<p>
     *
     * @return the element
     */
    public String getElement() {

        return m_element;
    }

    /**
     * Returns the endPattern.<p>
     *
     * @return the endPattern
     */
    public String getEndPattern() {

        return m_endPattern;
    }

    /**
     * Returns the imageGallery.<p>
     *
     * @return the imageGallery
     */
    public String getImageGallery() {

        return m_imageGallery;
    }

    /**
     * Returns the inputDir.<p>
     *
     * @return the inputDir
     */
    public String getInputDir() {

        return m_inputDir;
    }

    /**
     * Returns the inputEncoding.<p>
     *
     * @return the inputEncoding
     */
    public String getInputEncoding() {

        return m_inputEncoding;
    }

    /**
     * Returns the linkGallery.<p>
     *
     * @return the linkGallery
     */
    public String getLinkGallery() {

        return m_linkGallery;
    }

    /**
     * Returns the locale.<p>
     *
     * @return the locale
     */
    public String getLocale() {

        return m_locale;
    }

    /**