/*******************************************************************************
* Copyright (c) 2004, 2013 Tasktop Technologies and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.bugzilla.core;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.text.ParseException;
import org.eclipse.mylyn.commons.core.HtmlStreamTokenizer;
import org.eclipse.mylyn.commons.core.HtmlStreamTokenizer.Token;
import org.eclipse.mylyn.commons.core.HtmlTag;
/**
* This is in place to escape & characters within the resource and rdf:about attributes. Currently the values are not
* escaped which causes sax parser errors. This bug has been filed and can be found here:
* https://bugzilla.mozilla.org/show_bug.cgi?id=264785
*
* @author Rob Elves
*/
public class XmlCleaner {
public static BufferedReader clean(Reader in, File tempFile) {
HtmlStreamTokenizer tokenizer = new HtmlStreamTokenizer(in, null);
try {
BufferedWriter content = new BufferedWriter(new FileWriter(tempFile));
// Hack since HtmlStreamTokenizer not familiar with xml tag.
content.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); //$NON-NLS-1$
for (Token token = tokenizer.nextToken(); token.getType() != Token.EOF; token = tokenizer.nextToken()) {
if (token.getType() == Token.TAG) {
HtmlTag tag = (HtmlTag) token.getValue();
if (tag.getAttribute("resource") != null) { //$NON-NLS-1$
String resourceID = tag.getAttribute("resource"); //$NON-NLS-1$
tag.setAttribute("resource", resourceID.replace("&", "&")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
if (tag.getAttribute("rdf:about") != null) { //$NON-NLS-1$
String resourceID = tag.getAttribute("rdf:about"); //$NON-NLS-1$
tag.setAttribute("rdf:about", resourceID.replace("&", "&")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
}
if (!token.toString().startsWith("<?xml")) { //$NON-NLS-1$
content.append(token.toString());
}
}
content.flush();
content.close();
return new BufferedReader(new FileReader(tempFile));
} catch (IOException e) {
} catch (ParseException e) {
}
return null;
}
}