Author: xor
Date: 2008-11-11 21:43:23 +0000 (Tue, 11 Nov 2008)
New Revision: 23493
Modified:
trunk/plugins/WoT/Identity.java
trunk/plugins/WoT/OwnIdentity.java
Log:
Add functions to export an identity introduction to XML and import from XML.
I think that those should be in the Identity classes and not in the
introduction package because introduction of a new identity is something very
general and the introduction package is only the implementation of exchanging
introductions.
Modified: trunk/plugins/WoT/Identity.java
===================================================================
--- trunk/plugins/WoT/Identity.java 2008-11-11 20:59:02 UTC (rev 23492)
+++ trunk/plugins/WoT/Identity.java 2008-11-11 21:43:23 UTC (rev 23493)
@@ -5,6 +5,8 @@
*/
package plugins.WoT;
+import java.io.IOException;
+import java.io.InputStream;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.Date;
@@ -12,6 +14,13 @@
import java.util.Iterator;
import java.util.Map.Entry;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParserFactory;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
import plugins.WoT.exceptions.DuplicateIdentityException;
import plugins.WoT.exceptions.DuplicateScoreException;
import plugins.WoT.exceptions.DuplicateTrustException;
@@ -207,7 +216,67 @@
return uri.toString().substring(begin, end);
}
+ /**
+ * Please commit after calling the function!
+ * @param db
+ * @param fetcher
+ * @param is
+ * @return
+ * @throws ParserConfigurationException
+ * @throws SAXException
+ * @throws IOException
+ * @throws InvalidParameterException
+ */
+ public static Identity importIntroductionFromXML(ObjectContainer db,
IdentityFetcher fetcher, InputStream is) throws ParserConfigurationException,
SAXException, IOException, InvalidParameterException {
+ IntroductionHandler introHandler = new IntroductionHandler();
+ SAXParserFactory.newInstance().newSAXParser().parse(is,
introHandler);
+
+ Identity id;
+ FreenetURI requestURI = introHandler.getRequestURI();
+
+ try {
+ id = Identity.getByURI(db, requestURI);
+ }
+ catch (UnknownIdentityException e) {
+ id = new Identity(requestURI, null, false);
+ db.store(id);
+ fetcher.fetch(id);
+ }
+
+ return id;
+ }
+ public static class IntroductionHandler extends DefaultHandler {
+ private FreenetURI requestURI;
+
+ public IntroductionHandler() {
+ super();
+ }
+
+ /**
+ * Called by SAXParser for each XML element.
+ */
+ public void startElement(String nameSpaceURI, String localName,
String rawName, Attributes attrs) throws SAXException {
+ String elt_name = rawName == null ? localName : rawName;
+
+ try {
+ if (elt_name.equals("Identity")) {
+ requestURI = new
FreenetURI(attrs.getValue("value"));
+ }
+ else
+ Logger.error(this, "Unknown element in
identity introduction: " + elt_name);
+
+ } catch (Exception e1) {
+ Logger.error(this, "Parsing error",e1);
+ }
+ }
+
+ public FreenetURI getRequestURI() {
+ return requestURI;
+ }
+ }
+
+
/**
* Gets the score of this identity in a trust tree.
* Each [EMAIL PROTECTED] OwnIdentity} has its own trust tree.
Modified: trunk/plugins/WoT/OwnIdentity.java
===================================================================
--- trunk/plugins/WoT/OwnIdentity.java 2008-11-11 20:59:02 UTC (rev 23492)
+++ trunk/plugins/WoT/OwnIdentity.java 2008-11-11 21:43:23 UTC (rev 23493)
@@ -40,6 +40,7 @@
import com.db4o.ext.DatabaseClosedException;
import com.db4o.ext.Db4oIOException;
import com.db4o.query.Query;
+import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;
import freenet.keys.FreenetURI;
@@ -245,6 +246,34 @@
serializer.transform(domSource, resultStream);
}
+ public void exportIntroductionToXML(OutputStream os) throws
ParserConfigurationException, TransformerException {
+ StreamResult resultStream = new StreamResult(os);
+
+ // Create the XML document
+ DocumentBuilderFactory xmlFactory =
DocumentBuilderFactory.newInstance();
+ DocumentBuilder xmlBuilder = xmlFactory.newDocumentBuilder();
+ DOMImplementation impl = xmlBuilder.getDOMImplementation();
+ Document xmlDoc = impl.createDocument(null, "WoT", null);
+ Element rootElement = xmlDoc.getDocumentElement();
+
+ // Create the content
+ Element introTag = xmlDoc.createElement("IdentityIntroduction");
+
+ Element identityTag = xmlDoc.createElement("Identity");
+ identityTag.setAttribute("value", getRequestURI().toString());
+ introTag.appendChild(identityTag);
+
+ rootElement.appendChild(introTag);
+
+ DOMSource domSource = new DOMSource(xmlDoc);
+ TransformerFactory transformFactory =
TransformerFactory.newInstance();
+ Transformer serializer = transformFactory.newTransformer();
+
+ serializer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
+ serializer.setOutputProperty(OutputKeys.INDENT,"yes");
+ serializer.transform(domSource, resultStream);
+ }
+
/**
* Whether this OwnIdentity needs to be inserted or not.
* We insert OwnIdentities when they have been modified AND at least
once a week.
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