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271 lines
12 KiB
271 lines
12 KiB
//vcfParser.java
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//------------------------
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//part of YaCy
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//(C) by Michael Peter Christen; mc@anomic.de
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2005
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//
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//this file is contributed by Martin Thelian
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//last major change: 20.11.2005
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//
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//This program is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//Using this software in any meaning (reading, learning, copying, compiling,
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//running) means that you agree that the Author(s) is (are) not responsible
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//for cost, loss of data or any harm that may be caused directly or indirectly
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//by usage of this softare or this documentation. The usage of this software
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//is on your own risk. The installation and usage (starting/running) of this
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//software may allow other people or application to access your computer and
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//any attached devices and is highly dependent on the configuration of the
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//software which must be done by the user of the software; the author(s) is
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//(are) also not responsible for proper configuration and usage of the
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//software, even if provoked by documentation provided together with
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//the software.
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//
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//Any changes to this file according to the GPL as documented in the file
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//gpl.txt aside this file in the shipment you received can be done to the
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//lines that follows this copyright notice here, but changes must not be
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//done inside the copyright notive above. A re-distribution must contain
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//the intact and unchanged copyright notice.
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//Contributions and changes to the program code must be marked as such.
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package de.anomic.plasma.parser.vcf;
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import java.io.BufferedReader;
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import java.io.ByteArrayInputStream;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.HashMap;
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import java.util.Hashtable;
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import java.util.Iterator;
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import java.util.LinkedList;
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import org.apache.commons.codec.net.QuotedPrintableCodec;
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import de.anomic.http.httpc;
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import de.anomic.kelondro.kelondroBase64Order;
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import de.anomic.plasma.plasmaParserDocument;
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import de.anomic.plasma.parser.AbstractParser;
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import de.anomic.plasma.parser.Parser;
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import de.anomic.plasma.parser.ParserException;
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/**
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* Vcard specification: http://www.imc.org/pdi/vcard-21.txt
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* @author theli
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*
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*/
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public class vcfParser extends AbstractParser implements Parser {
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/**
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* a list of mime types that are supported by this parser class
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* @see #getSupportedMimeTypes()
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*
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* TODO: support of x-mozilla-cpt and x-mozilla-html tags
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*/
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public static final Hashtable SUPPORTED_MIME_TYPES = new Hashtable();
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static {
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SUPPORTED_MIME_TYPES.put("text/x-vcard","vcf");
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SUPPORTED_MIME_TYPES.put("application/vcard","vcf");
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}
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/**
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* a list of library names that are needed by this parser
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* @see Parser#getLibxDependences()
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*/
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private static final String[] LIBX_DEPENDENCIES = new String[] {"commons-codec-1.3.jar"};
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public vcfParser() {
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super(LIBX_DEPENDENCIES);
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parserName = "vCard Parser";
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}
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public Hashtable getSupportedMimeTypes() {
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return SUPPORTED_MIME_TYPES;
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}
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public plasmaParserDocument parse(URL location, String mimeType, InputStream source) throws ParserException {
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try {
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StringBuffer parsedTitle = new StringBuffer();
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StringBuffer parsedDataText = new StringBuffer();
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HashMap parsedData = new HashMap();
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HashMap anchors = new HashMap();
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LinkedList parsedNames = new LinkedList();
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boolean useLastLine = false;
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int lineNr = 0;
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String line = null;
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BufferedReader inputReader = new BufferedReader(new InputStreamReader(source));
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while (true) {
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if (!useLastLine) {
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line = inputReader.readLine();
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} else {
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useLastLine = false;
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}
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if (line == null) break;
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else if (line.length() == 0) continue;
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lineNr++;
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int pos = line.indexOf(":");
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if (pos != -1) {
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String key = line.substring(0,pos).trim().toUpperCase();
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String value = line.substring(pos+1).trim();
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String encoding = null;
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String[] keyParts = key.split(";");
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if (keyParts.length > 1) {
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for (int i=0; i < keyParts.length; i++) {
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if (keyParts[i].toUpperCase().startsWith("ENCODING")) {
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encoding = keyParts[i].substring("ENCODING".length()+1);
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} else if (keyParts[i].toUpperCase().startsWith("QUOTED-PRINTABLE")) {
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encoding = "QUOTED-PRINTABLE";
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} else if (keyParts[i].toUpperCase().startsWith("BASE64")) {
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encoding = "BASE64";
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}
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}
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if (encoding != null) {
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try {
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if (encoding.equalsIgnoreCase("QUOTED-PRINTABLE")) {
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// if the value has multiple lines ...
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if (line.endsWith("=")) {
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do {
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value = value.substring(0,value.length()-1);
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line = inputReader.readLine();
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if (line == null) break;
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value += line;
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} while (line.endsWith("="));
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}
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value = (new QuotedPrintableCodec()).decode(value);
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} else if (encoding.equalsIgnoreCase("base64")) {
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do {
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line = inputReader.readLine();
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if (line == null) break;
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if (line.indexOf(":")!= -1) {
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// we have detected an illegal block end of the base64 data
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useLastLine = true;
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}
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if (!useLastLine) value += line.trim();
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else break;
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} while (line.length()!=0);
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value = kelondroBase64Order.standardCoder.decodeString(value);
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}
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} catch (Exception ey) {
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// Encoding error: This could occure e.g. if the base64 doesn't
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// end with an empty newline
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//
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// We can simply ignore it.
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}
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}
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}
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if (key.equalsIgnoreCase("END")) {
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String name = null, title = null;
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// using the name of the current persion as section headline
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if (parsedData.containsKey("FN")) {
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parsedNames.add(name = (String)parsedData.get("FN"));
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} else if (parsedData.containsKey("N")) {
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parsedNames.add(name = (String)parsedData.get("N"));
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} else {
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parsedNames.add(name = "unknown name");
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}
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// getting the vcard title
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if (parsedData.containsKey("TITLE")) {
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parsedNames.add(title = (String) parsedData.get("TITLE"));
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}
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if (parsedTitle.length() > 0) parsedTitle.append(", ");
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parsedTitle.append((title==null)?name:name + " - " + title);
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// looping through the properties and add there values to
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// the text representation of the vCard
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Iterator iter = parsedData.values().iterator();
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while (iter.hasNext()) {
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value = (String) iter.next();
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parsedDataText.append(value).append("\r\n");
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}
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parsedDataText.append("\r\n");
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parsedData.clear();
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} else if (key.toUpperCase().startsWith("URL")) {
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try {
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URL newURL = new URL(value);
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anchors.put(newURL.toString(),newURL.toString());
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//parsedData.put(key,value);
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} catch (MalformedURLException ex) {}
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} else if (
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!key.equalsIgnoreCase("BEGIN") &&
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!key.equalsIgnoreCase("END") &&
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!key.equalsIgnoreCase("VERSION") &&
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!key.toUpperCase().startsWith("LOGO") &&
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!key.toUpperCase().startsWith("PHOTO") &&
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!key.toUpperCase().startsWith("SOUND") &&
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!key.toUpperCase().startsWith("KEY") &&
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!key.toUpperCase().startsWith("X-")
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) {
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// value = value.replaceAll(";","\t");
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if ((value.length() > 0)) parsedData.put(key, value);
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}
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} else {
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this.theLogger.logFinest("Invalid data in vcf file" +
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"\n\tURL: " + location +
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"\n\tLine: " + line +
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"\n\tLine-Nr: " + lineNr);
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}
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}
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plasmaParserDocument theDoc = new plasmaParserDocument(
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location,
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mimeType,
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null,
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null,
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parsedTitle.toString(),
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(String[]) parsedNames.toArray(new String[parsedNames.size()]),
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"vCard",
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parsedDataText.toString().getBytes(),
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anchors,
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null);
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return theDoc;
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} catch (Exception e) {
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throw new ParserException("Unable to parse the vcard content. " + e.getMessage());
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} finally {
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}
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}
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public void reset() {
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// Nothing todo here at the moment
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}
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public static void main(String[] args) {
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try {
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URL contentUrl = new URL(args[0]);
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vcfParser testParser = new vcfParser();
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byte[] content = httpc.singleGET(contentUrl, 10000, null, null, null);
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ByteArrayInputStream input = new ByteArrayInputStream(content);
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testParser.parse(contentUrl, "text/x-vcard", input);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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