Signatures.java

package thaw.plugins;

import java.util.Iterator;
import java.util.Vector;

import thaw.core.I18n;
import thaw.core.Core;
import thaw.core.Logger;
import thaw.core.LibraryPlugin;

import thaw.gui.IconBox;

import thaw.plugins.signatures.*;


public class Signatures extends LibraryPlugin {
	private Core core;
	private Hsqldb db;
	private SigConfigTab configTab;

	public final static int DEFAULT_MIN_TRUST_LEVEL = -1; /* see Identity.trustLevelInt */

	public final static String[][] DEVS = {
		/* { nick, publicKey } */
		{ "toad",
		  "CHwpbtSA+asXiF3s0xGX1hd3nA2scMMjSZbh:"+
		  "AKC/rtW2/X1DQH9VUzpunZgGXIlhFzFeDX4CT5nGjq7Fbkx9ipgekog5T4ElLVZ6nZDaf9t+t"+
		  "XRbqdBBo4SI7+OnHHJ8MVgRm5doU6bWtMbtEQ5E3LQk8174TNoWKGJ2cuvEsmzgE4BQZPLErs"+
		  "1rVfAfAziI0YPWFHKq2OzEOGW5" },
		{ "nextgens",
		  "CHwpbtSA+asXiF3s0xGX1hd3nA2scMMjSZbh:"+
		  "AM8giqR7C4ND7RxQzByb/ZOLEPoNRd818proqkW5rvqpPd5ODZvJYLZgDC+fe01BU0MFnE7LP"+
		  "tolulBNxiz4AaIyL51FnnzZt9Dp60h9lgawxttQ2DHx553hszZ6LQ5iAvzDivjmKGzWa6p17F"+
		  "+qo2OaGRXL3SGk1fsS40qgdVsP" },
		{ "Jflesch",
		  "CHwpbtSA+asXiF3s0xGX1hd3nA2scMMjSZbh:"+
		  "AIf5yXowXT/0Aa5UhwzOg/kZQnHar/dQl1lFqrcB6TKXf42LZecR1tNV9Hsxboa3Eo5JWdK9T"+
		  "AnHCLBu2lkYUOtcqEH2U0DkAfR11AYn2sdazk/LSFicAq7Ic6ZO7An2RJJUtcHY7pB164GZ76"+
		  "jpOn29iPagMq17n4zbZNqe03q1" },
		{ "bback",
		  "CHwpbtSA+asXiF3s0xGX1hd3nA2scMMjSZbh:"+
		  "AKLw/y7/oDmXYYT0KWNeAfJPcVRgns+Nw9rJ0X/2JLt7o73Yt9PMkx5STJhlJekF36sf+l3vk"+
		  "TzPNHa2xmyjHms2biHl3jGy9dHdAduqNKs99PyW0Z19/QbZ1HEeeCXgllKE+z4aHgWK2CzeID"+
		  "6wPkzZLjFInKLb3gZtQLh5cm3n" },
		{ "Zothar",
		  "CHwpbtSA+asXiF3s0xGX1hd3nA2scMMjSZbh:"+
		  "AL81sQtHFj5QZl/6GoG1fP0lmdHQOtvVuuxN60MWx1kLqByk17XlnP/wxGZyffSRdnZSmZoN0"+
		  "dprYrFJo9qj3mhsqmA8Gk50mkfX/gnkWzT2ChwkWIvk/+gPtOLXXx4yrGQlnNIQQ/V7y3YaN9"+
		  "706zYgySMcW1cv8eqhPxNZ7yYB" }

		/* TODO:
		 * Missing:
		 * - bombe
		 */

		/* Can't do:
		 * - sanity : no definitive key
		 */
	};


	/**
	 * because we must be sure that we won't be used anymore when we will
	 * unregister from the db
	 */
	private int used;

	public Signatures() {
		used = 0;
	}



	public boolean run(Core core) {
		this.core = core;

		core.getConfig().addListener("minTrustLevel", this);

		used++;
		
		if (observers.size() > 0)
			observers = new Vector();

		if(core.getPluginManager().getPlugin("thaw.plugins.Hsqldb") == null) {
			Logger.info(this, "Loading Hsqldb plugin");

			if(core.getPluginManager().loadPlugin("thaw.plugins.Hsqldb") == null
			   || !core.getPluginManager().runPlugin("thaw.plugins.Hsqldb")) {
				Logger.error(this, "Unable to load thaw.plugins.Hsqldb !");
				return false;
			}
		}

		db = (Hsqldb)core.getPluginManager().getPlugin("thaw.plugins.Hsqldb");
		db.registerChild(this);

		DatabaseManager.init(db, core.getConfig(),
				     core.getSplashScreen());

		if (core.getConfig().getValue("minTrustLevel") == null)
			core.getConfig().setValue("minTrustLevel", Integer.toString(DEFAULT_MIN_TRUST_LEVEL));

		configTab = new SigConfigTab(core.getConfig(), core.getConfigWindow(), db);

		core.getConfigWindow().addTab(I18n.getMessage("thaw.plugin.signature.signatures"),
					      thaw.gui.IconBox.minPeers,
					      configTab.getPanel());

		return true;
	}


	public void realStart() {
		used++;
	}


	public void stop() {
		configTab.destroy();
		core.getConfigWindow().removeTab(configTab.getPanel());

		used--;

		if (used == 0) {
			observers = new Vector();
			db.unregisterChild(this);
			db = null;
		}
	}


	public void realStop() {
		used--;

		if (used == 0) {
			observers = new Vector();
			db.unregisterChild(this);
			db = null;
		}
	}

	public String getNameForUser() {
		return I18n.getMessage("thaw.plugin.signature.pluginName");
	}

	public javax.swing.ImageIcon getIcon() {
		return IconBox.identity;
	}
	
	
	public static interface SignaturesObserver {
		/**
		 * Id in the db may not be defined => you may have to query the db to know it
		 * @param i
		 */
		public void publicIdentityAdded(Identity i);
		
		/**
		 * Id in the db may not be defined => you may have to query the db to know it
		 * @param i
		 */
		public void privateIdentityAdded(Identity i);

		public void identityUpdated(Identity i);
		/* we never remove identities ? ... hmmmm */
	}
	
	private static Vector observers = new Vector();

	public static void addObserver(SignaturesObserver o) {
		if (!observers.contains(o))
			observers.add(o);
	}
	
	public static void deleteObserver(SignaturesObserver o) {
		while (observers.remove(o));
	}
	
	public static void notifyPublicIdentityAdded(Identity i) {
		for (Iterator it = observers.iterator();
			 it.hasNext();) {
			((SignaturesObserver)it.next()).publicIdentityAdded(i);
		}
	}
	
	public static void notifyPrivateIdentityAdded(Identity i) {
		for (Iterator it = observers.iterator();
			 it.hasNext();) {
			((SignaturesObserver)it.next()).privateIdentityAdded(i);
		}
	}
	
	public static void notifyIdentityUpdated(Identity i) {
		for (Iterator it = observers.iterator();
			 it.hasNext();) {
			((SignaturesObserver)it.next()).identityUpdated(i);
		}
	}
}