1 files changed, 194 insertions, 0 deletions
diff --git a/src/se/leap/leapclient/Provider.java b/src/se/leap/leapclient/Provider.java
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+++ b/src/se/leap/leapclient/Provider.java
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+/**
+ * Copyright (c) 2013 LEAP Encryption Access Project and contributers
+ * 
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+package se.leap.leapclient;
+
+import java.io.Serializable;
+import java.util.Arrays;
+import java.util.Locale;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import android.content.Context;
+import android.app.Activity;
+import android.content.SharedPreferences;
+
+/**
+ * @author Sean Leonard <meanderingcode@aetherislands.net>
+ *
+ */
+public final class Provider implements Serializable {
+
+	private static final long serialVersionUID = 6003835972151761353L;
+	
+	private static Provider instance = null;
+	
+	// We'll access our preferences here
+	private static SharedPreferences preferences = null;
+	// Represents our Provider's provider.json
+	private static JSONObject definition = null;
+	
+
+	// Array of what API versions we understand
+	protected static final String[] API_VERSIONS = {"1"};  // I assume we might encounter arbitrary version "numbers"
+	// Some API pieces we want to know about
+	private static final String API_TERM_SERVICES = "services";
+	private static final String API_TERM_NAME = "name";
+	private static final String API_TERM_DOMAIN = "domain";
+	private static final String API_TERM_DEFAULT_LANGUAGE = "default_language";
+	protected static final String[] API_EIP_TYPES = {"openvpn"};
+
+	private static final String PREFS_EIP_NAME = null;
+
+
+	
+	// What, no individual fields?!  We're going to gamble on org.json.JSONObject and JSONArray
+	// Supporting multiple API versions will probably break this paradigm,
+	// Forcing me to write a real constructor and rewrite getters/setters
+	// Also will refactor if i'm instantiating the same local variables all the time
+	
+	/**
+	 * 
+	 */
+	private Provider() {}
+
+	protected static Provider getInstance(){
+		if(instance==null){
+			instance = new Provider();
+		}
+		return instance;
+	}
+
+	protected void init(Activity activity) {
+		
+		// Load our preferences from SharedPreferences
+		//   If there's nothing there, we will end up returning a rather empty object
+		//   to whoever called getInstance() and they can run the First Run Wizard
+		//preferences = context.getgetPreferences(0); // 0 == MODE_PRIVATE, but we don't extend Android's classes...
+		
+		// Load SharedPreferences
+		preferences = activity.getSharedPreferences(ConfigHelper.PREFERENCES_KEY,Context.MODE_PRIVATE);
+		// Inflate our provider.json data
+		try {
+			definition = new JSONObject( preferences.getString("provider", "") );
+		} catch (JSONException e) {
+			// TODO: handle exception
+			
+			// FIXME!!  We want "real" data!!
+		}
+	}
+
+	protected String getDomain(){
+		String domain = "Null";
+		try {
+			domain = definition.getString(API_TERM_DOMAIN);
+		} catch (JSONException e) {
+			domain = "Null";
+			e.printStackTrace();
+		}
+		return domain;
+	}
+	
+	protected String getName(){
+		// Should we pass the locale in, or query the system here?
+		String lang = Locale.getDefault().getLanguage();
+		String name = "Null"; // Should it actually /be/ null, for error conditions?
+		try {
+			name = definition.getJSONObject(API_TERM_NAME).getString(lang);
+		} catch (JSONException e) {
+			// TODO: Nesting try/catch blocks?  Crazy
+			//  Maybe you should actually handle exception?
+			try {
+				name = definition.getJSONObject(API_TERM_NAME).getString( definition.getString(API_TERM_DEFAULT_LANGUAGE) );
+			} catch (JSONException e2) {
+				// TODO: Will you handle the exception already?
+			}
+		}
+		
+		return name;
+	}
+	
+	protected String getDescription(){
+		String lang = Locale.getDefault().getLanguage();
+		String desc = null;
+		try {
+			desc = definition.getJSONObject("description").getString(lang);
+		} catch (JSONException e) {
+			// TODO: handle exception!!
+			try {
+				desc = definition.getJSONObject("description").getString( definition.getString("default_language") );
+			} catch (JSONException e2) {
+				// TODO: i can't believe you're doing it again!
+			}
+		}
+		
+		return desc;
+	}
+
+	protected boolean hasEIP() {
+		JSONArray services = null;
+		try {
+			services = definition.getJSONArray(API_TERM_SERVICES); // returns ["openvpn"]
+		} catch (Exception e) {
+			// TODO: handle exception
+		}
+		for (int i=0;i<API_EIP_TYPES.length+1;i++){
+			try {
+				// Walk the EIP types array looking for matches in provider's service definitions
+				if ( Arrays.asList(API_EIP_TYPES).contains( services.getString(i) ) )
+					return true;
+			} catch (JSONException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+		}
+		return false;
+	}
+	
+	protected String getEIPType() {
+		// FIXME!!!!!  We won't always be providing /only/ OpenVPN, will we?
+		// This will have to hook into some saved choice of EIP transport
+		if ( instance.hasEIP() )
+			return "OpenVPN";
+		else
+			return null;
+	}
+	
+	protected JSONObject getEIP() {
+		// FIXME!!!!!  We won't always be providing /only/ OpenVPN, will we?
+		// This will have to hook into some saved choice of EIP transport, cluster, gateway
+		//   with possible "choose at random" preference
+		if ( instance.hasEIP() ){
+			// TODO Might need an EIP class, but we've only got OpenVPN type right now,
+			// and only one gateway for our only provider...
+			// TODO We'll try to load from preferences, have to call ProviderAPI if we've got nothin...
+			JSONObject eipObject = null;
+			try {
+				eipObject = new JSONObject( preferences.getString(PREFS_EIP_NAME, "") );
+			} catch (JSONException e) {
+				// TODO ConfigHelper.rescueJSON()
+				// Still nothing?
+				// TODO ProviderAPI.getEIP()
+				e.printStackTrace();
+			}
+			
+			return eipObject;
+		} else
+			return null;
+	}
+}