1 files changed, 156 insertions, 0 deletions
diff --git a/app/src/main/java/se/leap/bitmaskclient/eip/Gateway.java b/app/src/main/java/se/leap/bitmaskclient/eip/Gateway.java
new file mode 100644
index 00000000..3ee9443c
--- /dev/null
+++ b/app/src/main/java/se/leap/bitmaskclient/eip/Gateway.java
@@ -0,0 +1,156 @@
+/**
+ * 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.bitmaskclient.eip;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.util.Log;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.util.Collection;
+import java.util.Iterator;
+
+import de.blinkt.openvpn.VpnProfile;
+import de.blinkt.openvpn.core.ConfigParser;
+import de.blinkt.openvpn.core.ProfileManager;
+import se.leap.bitmaskclient.Dashboard;
+
+/**
+ * Gateway provides objects defining gateways and their metadata.
+ * Each instance contains a VpnProfile for OpenVPN specific data and member
+ * variables describing capabilities and location (name)
+ * 
+ * @author Sean Leonard <meanderingcode@aetherislands.net>
+ * @author Parménides GV <parmegv@sdf.org>
+ */
+public class Gateway {
+		
+    private String TAG = Gateway.class.getSimpleName();
+		
+    private String mName;
+    private int timezone;
+    private JSONObject general_configuration;
+    private Context context;
+    private VpnProfile mVpnProfile;
+    private JSONObject mGateway;
+		
+    /**
+     * Build a gateway object from a JSON OpenVPN gateway definition in eip-service.json
+     * and create a VpnProfile belonging to it.
+     * 
+     * @param gateway The JSON OpenVPN gateway definition to parse
+     */
+    protected Gateway(JSONObject eip_definition, Context context, JSONObject gateway){
+
+	mGateway = gateway;
+	
+	this.context = context;
+	general_configuration = getGeneralConfiguration(eip_definition);
+	timezone = getTimezone(eip_definition);
+	mName = locationAsName(eip_definition);
+
+	// Currently deletes VpnProfile for host, if there already is one, and builds new
+	ProfileManager vpl = ProfileManager.getInstance(context);
+	Collection<VpnProfile> profiles = vpl.getProfiles();
+	for (Iterator<VpnProfile> it = profiles.iterator(); it.hasNext(); ){
+	    VpnProfile p = it.next();
+				
+	    if ( p.mName.equalsIgnoreCase( mName ) ) {
+		it.remove();
+		vpl.removeProfile(context, p);
+	    }
+	}
+
+	mVpnProfile = createVPNProfile();
+	mVpnProfile.mName = mName;
+
+	vpl.addProfile(mVpnProfile);
+	vpl.saveProfile(context, mVpnProfile);
+	vpl.saveProfileList(context);
+    }
+
+    private JSONObject getGeneralConfiguration(JSONObject eip_definition) {
+	try {
+	    return eip_definition.getJSONObject("openvpn_configuration");
+	} catch (JSONException e) {
+	    return new JSONObject();
+	}
+    }
+
+    private int getTimezone(JSONObject eip_definition) {
+	JSONObject location = getLocationInfo(eip_definition);
+	return location.optInt("timezone");
+    }
+
+    private String locationAsName(JSONObject eip_definition) {
+	JSONObject location = getLocationInfo(eip_definition);
+	return location.optString("name");
+    }
+
+    private JSONObject getLocationInfo(JSONObject eip_definition) {
+	try {
+	    JSONObject locations = eip_definition.getJSONObject("locations");
+
+	    return locations.getJSONObject(mGateway.getString("location"));
+	} catch (JSONException e) {
+	    return new JSONObject();
+	}
+    }
+	    
+    /**
+     * Create and attach the VpnProfile to our gateway object
+     */
+    private VpnProfile createVPNProfile(){
+	try {
+	    ConfigParser cp = new ConfigParser();
+
+	    SharedPreferences preferences = context.getSharedPreferences(Dashboard.SHARED_PREFERENCES, Activity.MODE_PRIVATE);
+	    VpnConfigGenerator vpn_configuration_generator = new VpnConfigGenerator(preferences, general_configuration, mGateway);
+	    String configuration = vpn_configuration_generator.generate();
+				
+	    cp.parseConfig(new StringReader(configuration));
+	    return cp.convertProfile();
+	} catch (ConfigParser.ConfigParseError e) {
+	    // FIXME We didn't get a VpnProfile!  Error handling! and log level
+	    Log.v(TAG,"Error creating VPNProfile");
+	    e.printStackTrace();
+	    return null;
+	} catch (IOException e) {
+	    // FIXME We didn't get a VpnProfile!  Error handling! and log level
+	    Log.v(TAG,"Error creating VPNProfile");
+	    e.printStackTrace();
+	    return null;
+	}
+    }
+
+    public String getName() {
+	return mName;
+    }
+
+    public VpnProfile getProfile() {
+	return mVpnProfile;
+    }
+
+    public int getTimezone() {
+	return timezone;
+    }
+}