diff --git a/source/de/anomic/plasma/parser/swf/build.xml b/source/de/anomic/plasma/parser/swf/build.xml new file mode 100644 index 000000000..38867744f --- /dev/null +++ b/source/de/anomic/plasma/parser/swf/build.xml @@ -0,0 +1,57 @@ + + + + A class to parse swf files + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/source/de/anomic/plasma/parser/swf/swfParser.java b/source/de/anomic/plasma/parser/swf/swfParser.java new file mode 100644 index 000000000..54248a1d2 --- /dev/null +++ b/source/de/anomic/plasma/parser/swf/swfParser.java @@ -0,0 +1,170 @@ +//docParser.java +//------------------------ +//part of YaCy +//(C) by Michael Peter Christen; mc@anomic.de +//first published on http://www.anomic.de +//Frankfurt, Germany, 2005 +// +//this file is contributed by Marc Nause +//last major change: 01.11.2006 +// +//This program is free software; you can redistribute it and/or modify +//it under the terms of the GNU General Public License as published by +//the Free Software Foundation; either version 2 of the License, or +//(at your option) any later version. +// +//This program 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 General Public License for more details. +// +//You should have received a copy of the GNU General Public License +//along with this program; if not, write to the Free Software +//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +// +//Using this software in any meaning (reading, learning, copying, compiling, +//running) means that you agree that the Author(s) is (are) not responsible +//for cost, loss of data or any harm that may be caused directly or indirectly +//by usage of this softare or this documentation. The usage of this software +//is on your own risk. The installation and usage (starting/running) of this +//software may allow other people or application to access your computer and +//any attached devices and is highly dependent on the configuration of the +//software which must be done by the user of the software; the author(s) is +//(are) also not responsible for proper configuration and usage of the +//software, even if provoked by documentation provided together with +//the software. +// +//Any changes to this file according to the GPL as documented in the file +//gpl.txt aside this file in the shipment you received can be done to the +//lines that follows this copyright notice here, but changes must not be +//done inside the copyright notive above. A re-distribution must contain +//the intact and unchanged copyright notice. +//Contributions and changes to the program code must be marked as such. + +package de.anomic.plasma.parser.swf; + +import java.io.File; +import java.io.InputStream; +import de.anomic.net.URL; +import java.util.Hashtable; +import java.util.TreeSet; +import java.util.HashMap; + +import pt.tumba.parser.swf.*; + +import de.anomic.plasma.plasmaParserDocument; +import de.anomic.plasma.parser.AbstractParser; +import de.anomic.plasma.parser.Parser; +import de.anomic.plasma.parser.ParserException; + +public class swfParser extends AbstractParser implements Parser { + + /** + * a list of mime types that are supported by this parser class + * @see #getSupportedMimeTypes() + */ + public static final Hashtable SUPPORTED_MIME_TYPES = new Hashtable(); + static { + SUPPORTED_MIME_TYPES.put("application/x-shockwave-flash","swf"); + } + + /** + * a list of library names that are needed by this parser + * @see Parser#getLibxDependences() + */ + private static final String[] LIBX_DEPENDENCIES = new String[] {"webcat.jar"}; + + public swfParser() { + super(LIBX_DEPENDENCIES); + this.parserName = "Adobe Flash Parser"; + this.parserVersionNr = "0.1"; + } + + /** + * returns a hashtable containing the mimetypes that are supported by this class + */ + public Hashtable getSupportedMimeTypes() { + return SUPPORTED_MIME_TYPES; + } + + /* + * parses the source documents and returns a plasmaParserDocument containing + * all extracted information about the parsed document + */ + public plasmaParserDocument parse(URL location, String mimeType, String charset, InputStream source) throws ParserException, InterruptedException { + + try { + SWF2HTML swf2html = new SWF2HTML(); + String contents = swf2html.convertSWFToHTML(source); + String url = null; + String urlnr = null; + String linebreak = System.getProperty("line.separator"); + String longTitle = null; + String[] sections = null; + String abstrct = null; + TreeSet images = null; + HashMap anchors = new HashMap(); + int urls = 0; + int urlStart = -1; + int urlEnd = 0; + int p0 = 0; + + //getting rid of HTML-Tags + p0 = contents.indexOf(""); + contents = contents.substring(p0+12); + p0 = contents.indexOf(""); + contents = contents.substring(0,p0); + + //extracting urls + while ((urlStart = contents.indexOf("http://",urlEnd)) >= 0){ + urlEnd = contents.indexOf(linebreak,urlStart); + url = contents.substring(urlStart,urlEnd); + urlnr = (new Integer(++urls)).toString(); + anchors.put(urlnr,url); + //contents = contents.substring(0,urlStart)+contents.substring(urlEnd); + } + +// if(anchors.isEmpty()){ +// anchors=null; +// String msg = "NONE xxxxxxxxxxxxxxx"; +// this.theLogger.logSevere(msg); +// } +// else{ +// String msg = "xxxxxxx "+anchors.get("1").toString(); +// this.theLogger.logSevere(msg); +// } + + // As the result of parsing this function must return a plasmaParserDocument object + plasmaParserDocument theDoc = new plasmaParserDocument( + location, // url of the source document + mimeType, // the documents mime type + "UTF-8", // charset of the document text + null, //keywords + ((contents.length() > 80)? contents.substring(0, 80):contents.trim()). + replaceAll("\r\n"," "). + replaceAll("\n"," "). + replaceAll("\r"," "). + replaceAll("\t"," "), //short title + longTitle, // a long document title + sections, // an array of section headlines + abstrct, // an abstract + contents.getBytes("UTF-8"), // the parsed document text + anchors, // a map of extracted anchors + null); // a treeset of image URLs + return theDoc; + } catch (Exception e) { + if (e instanceof InterruptedException) throw (InterruptedException) e; + + // if an unexpected error occures just log the error and raise a new ParserException + String errorMsg = "Unable to parse the swf document '" + location + "':" + e.getMessage(); + this.theLogger.logSevere(errorMsg); + throw new ParserException(errorMsg, location); + } + } + + public void reset() { + // this code is executed if the parser class is returned into the parser pool + super.reset(); + + } +} \ No newline at end of file