improve better server balancing: update eip-service.json every 3 days after a successful connection in order to recognize newly added gateways (#8974)

3 files changed, 23 insertions, 5 deletions

diff --git a/app/src/main/java/se/leap/bitmaskclient/EipSetupObserver.java b/app/src/main/java/se/leap/bitmaskclient/EipSetupObserver.java
index 1a0214dd..eceba0db 100644
--- a/app/src/main/java/se/leap/bitmaskclient/EipSetupObserver.java
+++ b/app/src/main/java/se/leap/bitmaskclient/EipSetupObserver.java
@@ -141,6 +141,7 @@ class EipSetupObserver extends BroadcastReceiver implements VpnStatus.StateListe
         Provider provider;
         switch (resultCode) {
             case CORRECTLY_DOWNLOADED_EIP_SERVICE:
+                Log.d(TAG, "correctly updated service json");
                 provider = resultData.getParcelable(PROVIDER_KEY);
                 ProviderObservable.getInstance().updateProvider(provider);
                 PreferenceHelper.storeProviderInPreferences(preferences, provider);
@@ -269,10 +270,9 @@ class EipSetupObserver extends BroadcastReceiver implements VpnStatus.StateListe
             //??
         } else if ("CONNECTED".equals(state)) {
             //saveLastProfile(context.getApplicationContext(), setupVpnProfile.getUUIDString());
-            if (setupNClosestGateway.get() > 0) {
-                //at least one failed gateway -> did the provider change it's gateways?
-                SharedPreferences preferences = context.getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
-                Provider provider = getSavedProviderFromSharedPreferences(preferences);
+            Provider provider = ProviderObservable.getInstance().getCurrentProvider();
+            if (setupNClosestGateway.get() > 0 || provider.shouldUpdateEipServiceJson()) {
+                //setupNClostestGateway > 0: at least one failed gateway -> did the provider change it's gateways?
                 ProviderAPICommand.execute(context, ProviderAPI.DOWNLOAD_SERVICE_JSON, provider);
             }
             finishGatewaySetup(false);
diff --git a/app/src/main/java/se/leap/bitmaskclient/Provider.java b/app/src/main/java/se/leap/bitmaskclient/Provider.java
index 067f9b2e..507a11bf 100644
--- a/app/src/main/java/se/leap/bitmaskclient/Provider.java
+++ b/app/src/main/java/se/leap/bitmaskclient/Provider.java
@@ -44,6 +44,7 @@ import static se.leap.bitmaskclient.ProviderAPI.ERRORS;
  */
 public final class Provider implements Parcelable {
 
+    private static long EIP_SERVICE_TIMEOUT = 1000 * 60 * 60 * 24 * 3;
     private JSONObject definition = new JSONObject(); // Represents our Provider's provider.json
     private JSONObject eipServiceJson = new JSONObject();
     private DefaultedURL mainUrl = new DefaultedURL();
@@ -54,6 +55,7 @@ public final class Provider implements Parcelable {
     private String apiVersion = "";
     private String privateKey = "";
     private String vpnCertificate = "";
+    private long lastEipServiceUpdate = 0L;
 
     private boolean allowAnonymous;
     private boolean allowRegistered;
@@ -268,6 +270,7 @@ public final class Provider implements Parcelable {
         parcel.writeString(getEipServiceJsonString());
         parcel.writeString(getPrivateKey());
         parcel.writeString(getVpnCertificate());
+        parcel.writeLong(lastEipServiceUpdate);
     }
 
     @Override
@@ -286,7 +289,8 @@ public final class Provider implements Parcelable {
             privateKey.equals(p.getPrivateKey()) &&
             vpnCertificate.equals(p.getVpnCertificate()) &&
             allowAnonymous == p.allowsAnonymous() &&
-            allowRegistered == p.allowsRegistered();
+            allowRegistered == p.allowsRegistered() &&
+            lastEipServiceUpdate == p.getLastEipServiceUpdate();
         } else return false;
     }
 
@@ -336,6 +340,7 @@ public final class Provider implements Parcelable {
             if (!tmpString.isEmpty()) {
                 this.setVpnCertificate(tmpString);
             }
+            this.lastEipServiceUpdate = in.readLong();
         } catch (MalformedURLException | JSONException e) {
             e.printStackTrace();
         }
@@ -368,6 +373,18 @@ public final class Provider implements Parcelable {
         return allowRegistered;
     }
 
+    public void setLastEipServiceUpdate(long timestamp) {
+        lastEipServiceUpdate = timestamp;
+    }
+
+    public long getLastEipServiceUpdate() {
+        return lastEipServiceUpdate;
+    }
+
+    public boolean shouldUpdateEipServiceJson() {
+        return System.currentTimeMillis() - lastEipServiceUpdate >= EIP_SERVICE_TIMEOUT;
+    }
+
     public boolean setEipServiceJson(JSONObject eipServiceJson) {
         if (eipServiceJson.has(ERRORS)) {
             return false;
diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java
index 46782802..0baa4e0d 100644
--- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java
+++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java
@@ -216,6 +216,7 @@ public abstract class ProviderApiManagerBase {
                 }
                 break;
             case DOWNLOAD_SERVICE_JSON:
+                Log.d(TAG, "update eip service json");
                 result = getAndSetEipServiceJson(provider);
                 if (result.getBoolean(BROADCAST_RESULT_KEY)) {
                     sendToReceiverOrBroadcast(receiver, CORRECTLY_DOWNLOADED_EIP_SERVICE, result, provider);