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*) new flash parser, still experimental

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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2888 6c8d7289-2bf4-0310-a012-ef5d649a1542
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low012 19 years ago
parent 215c4e65f1
commit 493391e42d
2 changed files with 227 additions and 0 deletions
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57
source/de/anomic/plasma/parser/swf/build.xml
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<?xml version="1.0"?>
<project name="YACY - swfParser" default="dist">
<description>
A class to parse swf files
</description>
<property name="parserShortName" value="swf"/>
<property name="parserVersion" value="0.1"/>
<property name="parserLongName" value="yacyContentParser_${parserShortName}"/>
<property name="parserArchive" location="${release}/${parserLongName}_${parserVersion}.tgz"/>
<target name="compile">
<javac srcdir="${src}/de/anomic/plasma/parser/${parserShortName}" destdir="${build}" source="${javacSource}" target="${javacTarget}" debug="true" debuglevel="lines,vars,source">
<classpath>
<pathelement location="${build}" />
<!-- main lib needed to parse swf files -->
<pathelement location="${libx}/webcat.jar" />
</classpath>
</javac>
</target>
<target name="zip" depends="compile">
<tar destfile="${parserArchive}" compression="gzip">
<tarfileset dir="${libx}"
includes="webcat.*"
prefix="${releaseFileParentDir}/libx/"
dirmode="755" mode="644"/>
<tarfileset dir="${src}/de/anomic/plasma/parser/${parserShortName}"
prefix="${releaseFileParentDir}/source/de/anomic/plasma/parser/${parserShortName}"
dirmode="755" mode="644"/>
<tarfileset dir="${build}/de/anomic/plasma/parser/${parserShortName}"
prefix="${releaseFileParentDir}/classes/de/anomic/plasma/parser/${parserShortName}"
dirmode="755" mode="644"/>
</tar>
</target>
<target name="copy" depends="compile">
<copy todir="${release}/libx/">
<fileset dir="${libx}" includes="webcat.*"/>
</copy>
<copy todir="${release}/source/de/anomic/plasma/parser/${parserShortName}">
<fileset dir="${src}/de/anomic/plasma/parser/${parserShortName}" includes="**/*"/>
</copy>
<copy todir="${release}/classes/de/anomic/plasma/parser/${parserShortName}">
<fileset dir="${build}/de/anomic/plasma/parser/${parserShortName}" includes="**/*"/>
</copy>
</target>
<target name="dist" depends="compile,zip" description="Compile and zip the parser"/>
</project>

170
source/de/anomic/plasma/parser/swf/swfParser.java
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//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("<html><body>");
contents = contents.substring(p0+12);
p0 = contents.indexOf("</body></html>");
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();
}
}
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