8773 refactoring ProviderAPI for testability, setting up basic unit test framework

10 files changed, 579 insertions, 244 deletions

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4dd11143..c0e2d90c 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -54,7 +54,7 @@
             </intent-filter>
         </service>
 	<service android:name="se.leap.bitmaskclient.ProviderAPI" android:enabled="true"/>
-	
+
         <receiver
             android:name="se.leap.bitmaskclient.OnBootReceiver"
             android:enabled="true"
diff --git a/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java b/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java
index 2c169e3d..c26184bb 100644
--- a/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java
+++ b/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java
@@ -56,7 +56,7 @@ import se.leap.bitmaskclient.userstatus.SessionDialog;
 import static android.view.View.GONE;
 import static android.view.View.INVISIBLE;
 import static android.view.View.VISIBLE;
-import static se.leap.bitmaskclient.ProviderApiBase.ERRORS;
+import static se.leap.bitmaskclient.ProviderAPI.ERRORS;
 
 /**
  * abstract base Activity that builds and shows the list of known available providers.
@@ -352,7 +352,7 @@ public abstract class BaseConfigurationWizard extends Activity
     }
 
     /**
-     * Asks ProviderAPI to download an anonymous (anon) VPN certificate.
+     * Asks ProviderApiService to download an anonymous (anon) VPN certificate.
      */
     private void downloadVpnCertificate() {
         Intent provider_API_command = new Intent(this, ProviderAPI.class);
diff --git a/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java b/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java
index ed527a54..54bcc1f4 100644
--- a/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java
+++ b/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java
@@ -16,16 +16,33 @@
  */
 package se.leap.bitmaskclient;
 
-import android.util.*;
-
-import org.json.*;
-
-import java.io.*;
-import java.math.*;
-import java.security.*;
-import java.security.cert.*;
-import java.security.interfaces.*;
-import java.security.spec.*;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.spongycastle.util.encoders.Base64;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.math.BigInteger;
+import java.security.KeyFactory;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
+import java.security.cert.CertificateEncodingException;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateFactory;
+import java.security.cert.X509Certificate;
+import java.security.interfaces.RSAPrivateKey;
+import java.security.spec.InvalidKeySpecException;
+import java.security.spec.PKCS8EncodedKeySpec;
 
 import static android.R.attr.name;
 
@@ -82,7 +99,7 @@ public class ConfigHelper {
             cf = CertificateFactory.getInstance("X.509");
 
             certificate_string = certificate_string.replaceFirst("-----BEGIN CERTIFICATE-----", "").replaceFirst("-----END CERTIFICATE-----", "").trim();
-            byte[] cert_bytes = Base64.decode(certificate_string, Base64.DEFAULT);
+            byte[] cert_bytes = Base64.decode(certificate_string);
             InputStream caInput = new ByteArrayInputStream(cert_bytes);
             try {
                 certificate = cf.generateCertificate(caInput);
@@ -90,15 +107,9 @@ public class ConfigHelper {
             } finally {
                 caInput.close();
             }
-        } catch (CertificateException e) {
-            // TODO Auto-generated catch block
-            e.printStackTrace();
-        } catch (IOException e) {
-            return null;
-        } catch (IllegalArgumentException e) {
+        } catch (NullPointerException | CertificateException | IOException | IllegalArgumentException e) {
             return null;
         }
-
         return (X509Certificate) certificate;
     }
 
@@ -139,7 +150,7 @@ public class ConfigHelper {
         try {
             KeyFactory kf = KeyFactory.getInstance("RSA", "BC");
             rsaKeyString = rsaKeyString.replaceFirst("-----BEGIN RSA PRIVATE KEY-----", "").replaceFirst("-----END RSA PRIVATE KEY-----", "");
-            PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(Base64.decode(rsaKeyString, Base64.DEFAULT));
+            PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(Base64.decode(rsaKeyString));
             key = (RSAPrivateKey) kf.generatePrivate(keySpec);
         } catch (InvalidKeySpecException e) {
             // TODO Auto-generated catch block
@@ -162,7 +173,7 @@ public class ConfigHelper {
     }
 
     public static String base64toHex(String base64_input) {
-        byte[] byteArray = Base64.decode(base64_input, Base64.DEFAULT);
+        byte[] byteArray = Base64.decode(base64_input);
         int readBytes = byteArray.length;
         StringBuffer hexData = new StringBuffer();
         int onebyte;
@@ -172,6 +183,15 @@ public class ConfigHelper {
         }
         return hexData.toString();
     }
+
+    @NonNull
+    public static String getFingerprintFromCertificate(X509Certificate certificate, String encoding) throws NoSuchAlgorithmException, CertificateEncodingException /*, UnsupportedEncodingException*/ {
+        return base64toHex(
+                //new String(Base64.encode(MessageDigest.getInstance(encoding).digest(certificate.getEncoded())), "US-ASCII"));
+                android.util.Base64.encodeToString(
+                MessageDigest.getInstance(encoding).digest(certificate.getEncoded()),
+                android.util.Base64.DEFAULT));
+    }
     
     /**
      * Adds a new X509 certificate given its input stream and its provider name
diff --git a/app/src/main/java/se/leap/bitmaskclient/DownloadFailedDialog.java b/app/src/main/java/se/leap/bitmaskclient/DownloadFailedDialog.java
index 6f6a14de..9d3f4b52 100644
--- a/app/src/main/java/se/leap/bitmaskclient/DownloadFailedDialog.java
+++ b/app/src/main/java/se/leap/bitmaskclient/DownloadFailedDialog.java
@@ -16,19 +16,19 @@
  */
 package se.leap.bitmaskclient;
 
-import android.app.*;
-import android.content.*;
-import android.os.*;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.DialogFragment;
+import android.content.DialogInterface;
+import android.os.Bundle;
 
-import org.json.JSONException;
 import org.json.JSONObject;
 
-import se.leap.bitmaskclient.userstatus.SessionDialog;
-
 import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.DEFAULT;
 import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.valueOf;
-import static se.leap.bitmaskclient.ProviderApiBase.ERRORID;
-import static se.leap.bitmaskclient.ProviderApiBase.ERRORS;
+import static se.leap.bitmaskclient.ProviderAPI.ERRORID;
+import static se.leap.bitmaskclient.ProviderAPI.ERRORS;
 
 /**
  * Implements a dialog to show why a download failed.
diff --git a/app/src/main/java/se/leap/bitmaskclient/OkHttpClientGenerator.java b/app/src/main/java/se/leap/bitmaskclient/OkHttpClientGenerator.java
new file mode 100644
index 00000000..1bf679f8
--- /dev/null
+++ b/app/src/main/java/se/leap/bitmaskclient/OkHttpClientGenerator.java
@@ -0,0 +1,166 @@
+/**
+ * Copyright (c) 2018 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;
+
+import android.content.SharedPreferences;
+import android.content.res.Resources;
+import android.os.Build;
+import android.support.annotation.NonNull;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.net.UnknownHostException;
+import java.security.KeyManagementException;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
+import java.security.cert.CertificateException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+
+import okhttp3.CipherSuite;
+import okhttp3.ConnectionSpec;
+import okhttp3.Cookie;
+import okhttp3.CookieJar;
+import okhttp3.HttpUrl;
+import okhttp3.OkHttpClient;
+import okhttp3.TlsVersion;
+
+import static android.text.TextUtils.isEmpty;
+import static se.leap.bitmaskclient.ProviderAPI.ERRORS;
+import static se.leap.bitmaskclient.R.string.certificate_error;
+import static se.leap.bitmaskclient.R.string.error_io_exception_user_message;
+import static se.leap.bitmaskclient.R.string.error_no_such_algorithm_exception_user_message;
+import static se.leap.bitmaskclient.R.string.keyChainAccessError;
+import static se.leap.bitmaskclient.R.string.server_unreachable_message;
+
+/**
+ * Created by cyberta on 08.01.18.
+ */
+
+public class OkHttpClientGenerator {
+
+    SharedPreferences preferences;
+    Resources resources;
+
+    public OkHttpClientGenerator(SharedPreferences preferences, Resources resources) {
+        this.preferences = preferences;
+        this.resources = resources;
+    }
+
+    public OkHttpClient initCommercialCAHttpClient(JSONObject initError) {
+        return initHttpClient(initError, null);
+    }
+
+    public OkHttpClient initSelfSignedCAHttpClient(JSONObject initError) {
+        String certificate = preferences.getString(Provider.CA_CERT, "");
+        return initHttpClient(initError, certificate);
+    }
+
+    public OkHttpClient initSelfSignedCAHttpClient(JSONObject initError, String certificate) {
+        return initHttpClient(initError, certificate);
+    }
+
+
+    private OkHttpClient initHttpClient(JSONObject initError, String certificate) {
+        try {
+            TLSCompatSocketFactory sslCompatFactory;
+            ConnectionSpec spec = getConnectionSpec();
+            OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder();
+
+            if (!isEmpty(certificate)) {
+                sslCompatFactory = new TLSCompatSocketFactory(certificate);
+            } else {
+                sslCompatFactory = new TLSCompatSocketFactory();
+            }
+            sslCompatFactory.initSSLSocketFactory(clientBuilder);
+            clientBuilder.cookieJar(getCookieJar())
+                    .connectionSpecs(Collections.singletonList(spec));
+            return clientBuilder.build();
+        } catch (IllegalArgumentException e) {
+            e.printStackTrace();
+            addErrorMessageToJson(initError, resources.getString(R.string.certificate_error));
+        } catch (IllegalStateException | KeyManagementException | KeyStoreException e) {
+            e.printStackTrace();
+            addErrorMessageToJson(initError, String.format(resources.getString(keyChainAccessError), e.getLocalizedMessage()));
+        } catch (NoSuchAlgorithmException | NoSuchProviderException e) {
+            e.printStackTrace();
+            addErrorMessageToJson(initError, resources.getString(error_no_such_algorithm_exception_user_message));
+        } catch (CertificateException e) {
+            e.printStackTrace();
+            addErrorMessageToJson(initError, resources.getString(certificate_error));
+        } catch (UnknownHostException e) {
+            e.printStackTrace();
+            addErrorMessageToJson(initError, resources.getString(server_unreachable_message));
+        } catch (IOException e) {
+            e.printStackTrace();
+            addErrorMessageToJson(initError, resources.getString(error_io_exception_user_message));
+        }
+        return null;
+    }
+
+
+
+    @NonNull
+    private ConnectionSpec getConnectionSpec() {
+        ConnectionSpec.Builder connectionSpecbuilder = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
+                .tlsVersions(TlsVersion.TLS_1_2, TlsVersion.TLS_1_3);
+        //FIXME: restrict connection further to the following recommended cipher suites for ALL supported API levels
+        //figure out how to use bcjsse for that purpose
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1)
+            connectionSpecbuilder.cipherSuites(
+                    CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+                    CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+                    CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+                    CipherSuite.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+                    CipherSuite.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
+                    CipherSuite.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
+            );
+        return connectionSpecbuilder.build();
+    }
+
+    @NonNull
+    private CookieJar getCookieJar() {
+        return new CookieJar() {
+            private final HashMap<String, List<Cookie>> cookieStore = new HashMap<>();
+
+            @Override
+            public void saveFromResponse(HttpUrl url, List<Cookie> cookies) {
+                cookieStore.put(url.host(), cookies);
+            }
+
+            @Override
+            public List<Cookie> loadForRequest(HttpUrl url) {
+                List<Cookie> cookies = cookieStore.get(url.host());
+                return cookies != null ? cookies : new ArrayList<Cookie>();
+            }
+        };
+    }
+
+    private void addErrorMessageToJson(JSONObject jsonObject, String errorMessage) {
+        try {
+            jsonObject.put(ERRORS, errorMessage);
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderAPI.java b/app/src/main/java/se/leap/bitmaskclient/ProviderAPI.java
new file mode 100644
index 00000000..5a6aabc0
--- /dev/null
+++ b/app/src/main/java/se/leap/bitmaskclient/ProviderAPI.java
@@ -0,0 +1,124 @@
+/**
+ * Copyright (c) 2017 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;
+
+import android.annotation.SuppressLint;
+import android.app.IntentService;
+import android.content.Intent;
+import android.content.SharedPreferences;
+
+import de.blinkt.openvpn.core.Preferences;
+
+/**
+ * Implements HTTP api methods (encapsulated in {{@link ProviderApiManager}})
+ * used to manage communications with the provider server.
+ * <p/>
+ * It's an IntentService because it downloads data from the Internet, so it operates in the background.
+ *
+ * @author parmegv
+ * @author MeanderingCode
+ * @author cyberta
+ */
+
+public class ProviderAPI extends IntentService implements ProviderApiManagerBase.ProviderApiServiceCallback {
+
+    final public static String
+            TAG = ProviderAPI.class.getSimpleName(),
+            SET_UP_PROVIDER = "setUpProvider",
+            UPDATE_PROVIDER_DETAILS = "updateProviderDetails",
+            DOWNLOAD_NEW_PROVIDER_DOTJSON = "downloadNewProviderDotJSON",
+            SIGN_UP = "srpRegister",
+            LOG_IN = "srpAuth",
+            LOG_OUT = "logOut",
+            DOWNLOAD_CERTIFICATE = "downloadUserAuthedCertificate",
+            PARAMETERS = "parameters",
+            RESULT_KEY = "result",
+            RECEIVER_KEY = "receiver",
+            ERRORS = "errors",
+            ERRORID = "errorId",
+            UPDATE_PROGRESSBAR = "update_progressbar",
+            CURRENT_PROGRESS = "current_progress",
+            DOWNLOAD_EIP_SERVICE = TAG + ".DOWNLOAD_EIP_SERVICE";
+
+    final public static int
+            SUCCESSFUL_LOGIN = 3,
+            FAILED_LOGIN = 4,
+            SUCCESSFUL_SIGNUP = 5,
+            FAILED_SIGNUP = 6,
+            SUCCESSFUL_LOGOUT = 7,
+            LOGOUT_FAILED = 8,
+            CORRECTLY_DOWNLOADED_CERTIFICATE = 9,
+            INCORRECTLY_DOWNLOADED_CERTIFICATE = 10,
+            PROVIDER_OK = 11,
+            PROVIDER_NOK = 12,
+            CORRECTLY_DOWNLOADED_EIP_SERVICE = 13,
+            INCORRECTLY_DOWNLOADED_EIP_SERVICE = 14;
+
+    ProviderApiManager providerApiManager;
+
+
+
+    public ProviderAPI() {
+        super(TAG);
+    }
+
+    //TODO: refactor me, please!
+    public static void stop() {
+        ProviderApiManager.stop();
+    }
+
+    //TODO: refactor me, please!
+    public static boolean caCertDownloaded() {
+        return ProviderApiManager.caCertDownloaded();
+    }
+
+    //TODO: refactor me, please!
+    public static String lastProviderMainUrl() {
+        return ProviderApiManager.lastProviderMainUrl();
+    }
+
+    //TODO: refactor me, please!
+    //used in insecure flavor only
+    @SuppressLint("unused")
+    public static boolean lastDangerOn() {
+        return ProviderApiManager.lastDangerOn();
+    }
+
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        providerApiManager = initApiManager();
+    }
+
+    @Override
+    public void broadcastProgress(Intent intent) {
+        sendBroadcast(intent);
+    }
+
+    @Override
+    protected void onHandleIntent(Intent command) {
+        providerApiManager.handleIntent(command);
+    }
+
+
+    private ProviderApiManager initApiManager() {
+        SharedPreferences preferences = getSharedPreferences(Constants.SHARED_PREFERENCES, MODE_PRIVATE);
+        OkHttpClientGenerator clientGenerator = new OkHttpClientGenerator(preferences, getResources());
+        return new ProviderApiManager(preferences, getResources(), clientGenerator, this);
+    }
+}
diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java b/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java
index 9b880f89..9b777e5a 100644
--- a/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java
+++ b/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java
@@ -16,7 +16,9 @@
  */

 package se.leap.bitmaskclient;

 

-import android.os.*;

+import android.os.Bundle;

+import android.os.Handler;

+import android.os.ResultReceiver;

 

 /**

  * Implements the ResultReceiver needed by Activities using ProviderAPI to receive the results of its operations.

diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java
new file mode 100644
index 00000000..9aad14d5
--- /dev/null
+++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java
@@ -0,0 +1,102 @@
+/**
+ * Copyright (c) 2018 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;
+
+import android.support.annotation.NonNull;
+import android.util.Pair;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+import java.util.Locale;
+import java.util.Scanner;
+
+import okhttp3.MediaType;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+
+/**
+ * Created by cyberta on 08.01.18.
+ */
+
+public class ProviderApiConnector {
+
+    private static final MediaType JSON
+            = MediaType.parse("application/json; charset=utf-8");
+
+
+    public static boolean delete(OkHttpClient okHttpClient, String deleteUrl) {
+        try {
+            Request.Builder requestBuilder = new Request.Builder()
+                    .url(deleteUrl)
+                    .delete();
+            Request request = requestBuilder.build();
+
+            Response response = okHttpClient.newCall(request).execute();
+            if (response.isSuccessful() || response.code() == 401) {
+                return true;
+            }
+        }  catch (IOException | RuntimeException e) {
+            return false;
+        }
+
+        return false;
+    }
+
+    public static boolean canConnect(@NonNull OkHttpClient okHttpClient, String url) {
+        try {
+            Request.Builder requestBuilder = new Request.Builder()
+                    .url(url)
+                    .method("GET", null);
+            Request request = requestBuilder.build();
+
+            Response response = okHttpClient.newCall(request).execute();
+            return response.isSuccessful();
+        } catch (RuntimeException | IOException e) {
+            return false;
+        }
+
+    }
+
+    public static String requestStringFromServer(@NonNull String url, @NonNull String request_method, String jsonString, @NonNull List<Pair<String, String>> headerArgs, @NonNull OkHttpClient okHttpClient) throws RuntimeException, IOException {
+
+        RequestBody jsonBody = jsonString != null ? RequestBody.create(JSON, jsonString) : null;
+        Request.Builder requestBuilder = new Request.Builder()
+                .url(url)
+                .method(request_method, jsonBody);
+        if (headerArgs != null) {
+            for (Pair<String, String> keyValPair : headerArgs) {
+                requestBuilder.addHeader(keyValPair.first, keyValPair.second);
+            }
+        }
+        //TODO: move to getHeaderArgs()?
+        String locale = Locale.getDefault().getLanguage() + Locale.getDefault().getCountry();
+        requestBuilder.addHeader("Accept-Language", locale);
+        Request request = requestBuilder.build();
+
+        Response response = okHttpClient.newCall(request).execute();
+        InputStream inputStream = response.body().byteStream();
+        Scanner scanner = new Scanner(inputStream).useDelimiter("\\A");
+        if (scanner.hasNext()) {
+            return scanner.next();
+        }
+        return null;
+    }
+}
diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java
index 0013d2c2..396d642b 100644
--- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java
+++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java
@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2017 LEAP Encryption Access Project and contributers
+ * Copyright (c) 2018 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
@@ -14,13 +14,12 @@
  * 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;
 
-import android.app.IntentService;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Resources;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.ResultReceiver;
 import android.support.annotation.NonNull;
@@ -38,11 +37,7 @@ import java.net.MalformedURLException;
 import java.net.SocketTimeoutException;
 import java.net.UnknownHostException;
 import java.net.UnknownServiceException;
-import java.security.KeyManagementException;
-import java.security.KeyStoreException;
-import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
-import java.security.NoSuchProviderException;
 import java.security.cert.CertificateEncodingException;
 import java.security.cert.CertificateException;
 import java.security.cert.CertificateExpiredException;
@@ -50,90 +45,75 @@ import java.security.cert.CertificateNotYetValidException;
 import java.security.cert.X509Certificate;
 import java.security.interfaces.RSAPrivateKey;
 import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Scanner;
 
 import javax.net.ssl.SSLHandshakeException;
 
-import okhttp3.CipherSuite;
-import okhttp3.ConnectionSpec;
-import okhttp3.Cookie;
-import okhttp3.CookieJar;
-import okhttp3.HttpUrl;
 import okhttp3.MediaType;
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
 import okhttp3.RequestBody;
 import okhttp3.Response;
-import okhttp3.TlsVersion;
 import se.leap.bitmaskclient.userstatus.SessionDialog;
 import se.leap.bitmaskclient.userstatus.User;
 import se.leap.bitmaskclient.userstatus.UserStatus;
 
-import static android.text.TextUtils.isEmpty;
-import static se.leap.bitmaskclient.ConfigHelper.base64toHex;
+import static se.leap.bitmaskclient.ConfigHelper.getFingerprintFromCertificate;
 import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_CERTIFICATE_PINNING;
 import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_CORRUPTED_PROVIDER_JSON;
 import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_INVALID_CERTIFICATE;
 import static se.leap.bitmaskclient.Provider.MAIN_URL;
+import static se.leap.bitmaskclient.ProviderAPI.CORRECTLY_DOWNLOADED_CERTIFICATE;
+import static se.leap.bitmaskclient.ProviderAPI.CORRECTLY_DOWNLOADED_EIP_SERVICE;
+import static se.leap.bitmaskclient.ProviderAPI.CURRENT_PROGRESS;
+import static se.leap.bitmaskclient.ProviderAPI.DOWNLOAD_CERTIFICATE;
+import static se.leap.bitmaskclient.ProviderAPI.DOWNLOAD_EIP_SERVICE;
+import static se.leap.bitmaskclient.ProviderAPI.ERRORID;
+import static se.leap.bitmaskclient.ProviderAPI.ERRORS;
+import static se.leap.bitmaskclient.ProviderAPI.FAILED_LOGIN;
+import static se.leap.bitmaskclient.ProviderAPI.FAILED_SIGNUP;
+import static se.leap.bitmaskclient.ProviderAPI.INCORRECTLY_DOWNLOADED_CERTIFICATE;
+import static se.leap.bitmaskclient.ProviderAPI.INCORRECTLY_DOWNLOADED_EIP_SERVICE;
+import static se.leap.bitmaskclient.ProviderAPI.LOGOUT_FAILED;
+import static se.leap.bitmaskclient.ProviderAPI.LOG_IN;
+import static se.leap.bitmaskclient.ProviderAPI.LOG_OUT;
+import static se.leap.bitmaskclient.ProviderAPI.PARAMETERS;
+import static se.leap.bitmaskclient.ProviderAPI.PROVIDER_NOK;
+import static se.leap.bitmaskclient.ProviderAPI.PROVIDER_OK;
+import static se.leap.bitmaskclient.ProviderAPI.RECEIVER_KEY;
+import static se.leap.bitmaskclient.ProviderAPI.RESULT_KEY;
+import static se.leap.bitmaskclient.ProviderAPI.SET_UP_PROVIDER;
+import static se.leap.bitmaskclient.ProviderAPI.SIGN_UP;
+import static se.leap.bitmaskclient.ProviderAPI.SUCCESSFUL_LOGIN;
+import static se.leap.bitmaskclient.ProviderAPI.SUCCESSFUL_LOGOUT;
+import static se.leap.bitmaskclient.ProviderAPI.SUCCESSFUL_SIGNUP;
+import static se.leap.bitmaskclient.ProviderAPI.UPDATE_PROGRESSBAR;
+import static se.leap.bitmaskclient.ProviderAPI.UPDATE_PROVIDER_DETAILS;
 import static se.leap.bitmaskclient.R.string.certificate_error;
 import static se.leap.bitmaskclient.R.string.error_io_exception_user_message;
 import static se.leap.bitmaskclient.R.string.error_json_exception_user_message;
 import static se.leap.bitmaskclient.R.string.error_no_such_algorithm_exception_user_message;
-import static se.leap.bitmaskclient.R.string.keyChainAccessError;
 import static se.leap.bitmaskclient.R.string.malformed_url;
+import static se.leap.bitmaskclient.R.string.retry;
 import static se.leap.bitmaskclient.R.string.server_unreachable_message;
 import static se.leap.bitmaskclient.R.string.service_is_down_error;
 
 /**
- * Implements HTTP api methods used to manage communications with the provider server.
- * The implemented methods are commonly used by insecure's and production's flavor of ProviderAPI.
- * <p/>
- * It's an IntentService because it downloads data from the Internet, so it operates in the background.
- *
- * @author parmegv
- * @author MeanderingCode
- * @author cyberta
+ * Implements the logic of the http api calls. The methods of this class needs to be called from
+ * a background thread.
  */
 
-public abstract class ProviderApiBase extends IntentService {
-
-    final public static String
-            TAG = ProviderAPI.class.getSimpleName(),
-            SET_UP_PROVIDER = "setUpProvider",
-            UPDATE_PROVIDER_DETAILS = "updateProviderDetails",
-            DOWNLOAD_NEW_PROVIDER_DOTJSON = "downloadNewProviderDotJSON",
-            SIGN_UP = "srpRegister",
-            LOG_IN = "srpAuth",
-            LOG_OUT = "logOut",
-            DOWNLOAD_CERTIFICATE = "downloadUserAuthedCertificate",
-            PARAMETERS = "parameters",
-            RESULT_KEY = "result",
-            RECEIVER_KEY = "receiver",
-            ERRORS = "errors",
-            ERRORID = "errorId",
-            UPDATE_PROGRESSBAR = "update_progressbar",
-            CURRENT_PROGRESS = "current_progress",
-            DOWNLOAD_EIP_SERVICE = TAG + ".DOWNLOAD_EIP_SERVICE";
-
-    final public static int
-            SUCCESSFUL_LOGIN = 3,
-            FAILED_LOGIN = 4,
-            SUCCESSFUL_SIGNUP = 5,
-            FAILED_SIGNUP = 6,
-            SUCCESSFUL_LOGOUT = 7,
-            LOGOUT_FAILED = 8,
-            CORRECTLY_DOWNLOADED_CERTIFICATE = 9,
-            INCORRECTLY_DOWNLOADED_CERTIFICATE = 10,
-            PROVIDER_OK = 11,
-            PROVIDER_NOK = 12,
-            CORRECTLY_DOWNLOADED_EIP_SERVICE = 13,
-            INCORRECTLY_DOWNLOADED_EIP_SERVICE = 14;
-
-    protected static boolean
+public abstract class ProviderApiManagerBase {
+
+    public interface ProviderApiServiceCallback {
+        void broadcastProgress(Intent intent);
+    }
+
+    private ProviderApiServiceCallback serviceCallback;
+
+    protected static volatile boolean
             CA_CERT_DOWNLOADED = false,
             PROVIDER_JSON_DOWNLOADED = false,
             EIP_SERVICE_JSON_DOWNLOADED = false;
@@ -146,32 +126,28 @@ public abstract class ProviderApiBase extends IntentService {
     protected static String providerCaCert;
     protected static JSONObject providerDefinition;
     protected Resources resources;
+    protected OkHttpClientGenerator clientGenerator;
 
     public static void stop() {
         go_ahead = false;
     }
 
-    private final MediaType JSON
-            = MediaType.parse("application/json; charset=utf-8");
-
-    public ProviderApiBase() {
-        super(TAG);
+    public static String lastProviderMainUrl() {
+        return lastProviderMainUrl;
     }
 
-    @Override
-    public void onCreate() {
-        super.onCreate();
 
-        preferences = getSharedPreferences(Constants.SHARED_PREFERENCES, MODE_PRIVATE);
-        resources = getResources();
-    }
+    private final MediaType JSON
+            = MediaType.parse("application/json; charset=utf-8");
 
-    public static String lastProviderMainUrl() {
-        return lastProviderMainUrl;
+    public ProviderApiManagerBase(SharedPreferences preferences, Resources resources, OkHttpClientGenerator clientGenerator, ProviderApiServiceCallback callback) {
+        this.preferences = preferences;
+        this.resources = resources;
+        this.serviceCallback = callback;
+        this.clientGenerator = clientGenerator;
     }
 
-    @Override
-    protected void onHandleIntent(Intent command) {
+    public void handleIntent(Intent command) {
         final ResultReceiver receiver = command.getParcelableExtra(RECEIVER_KEY);
         String action = command.getAction();
         Bundle parameters = command.getBundleExtra(PARAMETERS);
@@ -185,6 +161,7 @@ public abstract class ProviderApiBase extends IntentService {
                 go_ahead = false;
             }
         }
+
         if (action.equals(UPDATE_PROVIDER_DETAILS)) {
             resetProviderDetails();
             Bundle task = new Bundle();
@@ -255,7 +232,7 @@ public abstract class ProviderApiBase extends IntentService {
     }
 
     protected String formatErrorMessage(final int toastStringId) {
-        return formatErrorMessage(getResources().getString(toastStringId));
+        return formatErrorMessage(resources.getString(toastStringId));
     }
 
     private String formatErrorMessage(String errorMessage) {
@@ -288,91 +265,7 @@ public abstract class ProviderApiBase extends IntentService {
         }
     }
 
-    private OkHttpClient initHttpClient(JSONObject initError, String certificate) {
-        try {
-            TLSCompatSocketFactory sslCompatFactory;
-            ConnectionSpec spec = getConnectionSpec();
-            OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder();
 
-            if (!isEmpty(certificate)) {
-                sslCompatFactory = new TLSCompatSocketFactory(certificate);
-            } else {
-                sslCompatFactory = new TLSCompatSocketFactory();
-            }
-            sslCompatFactory.initSSLSocketFactory(clientBuilder);
-            clientBuilder.cookieJar(getCookieJar())
-                    .connectionSpecs(Collections.singletonList(spec));
-            return clientBuilder.build();
-        } catch (IllegalArgumentException e) {
-            e.printStackTrace();
-            addErrorMessageToJson(initError, resources.getString(R.string.certificate_error));
-        } catch (IllegalStateException | KeyManagementException | KeyStoreException e) {
-            e.printStackTrace();
-            addErrorMessageToJson(initError, String.format(resources.getString(keyChainAccessError), e.getLocalizedMessage()));
-        } catch (NoSuchAlgorithmException | NoSuchProviderException e) {
-            e.printStackTrace();
-            addErrorMessageToJson(initError, resources.getString(error_no_such_algorithm_exception_user_message));
-        } catch (CertificateException e) {
-            e.printStackTrace();
-            addErrorMessageToJson(initError, resources.getString(certificate_error));
-        } catch (UnknownHostException e) {
-            e.printStackTrace();
-            addErrorMessageToJson(initError, resources.getString(server_unreachable_message));
-        } catch (IOException e) {
-            e.printStackTrace();
-            addErrorMessageToJson(initError, resources.getString(error_io_exception_user_message));
-        }
-        return null;
-    }
-
-    protected OkHttpClient initCommercialCAHttpClient(JSONObject initError) {
-        return initHttpClient(initError, null);
-    }
-
-    protected OkHttpClient initSelfSignedCAHttpClient(JSONObject initError) {
-        String certificate = preferences.getString(Provider.CA_CERT, "");
-        return initHttpClient(initError, certificate);
-    }
-
-    protected OkHttpClient initSelfSignedCAHttpClient(JSONObject initError, String certificate) {
-        return initHttpClient(initError, certificate);
-    }
-
-    @NonNull
-    private ConnectionSpec getConnectionSpec() {
-        ConnectionSpec.Builder connectionSpecbuilder = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
-                .tlsVersions(TlsVersion.TLS_1_2, TlsVersion.TLS_1_3);
-        //FIXME: restrict connection further to the following recommended cipher suites for ALL supported API levels
-        //figure out how to use bcjsse for that purpose
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1)
-            connectionSpecbuilder.cipherSuites(
-                    CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-                    CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-                    CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
-                    CipherSuite.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
-                    CipherSuite.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
-                    CipherSuite.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
-            );
-        return connectionSpecbuilder.build();
-    }
-
-    @NonNull
-    private CookieJar getCookieJar() {
-        return new CookieJar() {
-            private final HashMap<String, List<Cookie>> cookieStore = new HashMap<>();
-
-            @Override
-            public void saveFromResponse(HttpUrl url, List<Cookie> cookies) {
-                cookieStore.put(url.host(), cookies);
-            }
-
-            @Override
-            public List<Cookie> loadForRequest(HttpUrl url) {
-                List<Cookie> cookies = cookieStore.get(url.host());
-                return cookies != null ? cookies : new ArrayList<Cookie>();
-            }
-        };
-    }
 
 
     private Bundle tryToRegister(Bundle task) {
@@ -402,7 +295,7 @@ public abstract class ProviderApiBase extends IntentService {
 
     private Bundle register(String username, String password) {
         JSONObject stepResult = null;
-        OkHttpClient okHttpClient = initSelfSignedCAHttpClient(stepResult);
+        OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(stepResult);
         if (okHttpClient == null) {
             return authFailedNotification(stepResult, username);
         }
@@ -459,7 +352,7 @@ public abstract class ProviderApiBase extends IntentService {
     private Bundle authenticate(String username, String password) {
         Bundle result = new Bundle();
         JSONObject stepResult = new JSONObject();
-        OkHttpClient okHttpClient = initSelfSignedCAHttpClient(stepResult);
+        OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(stepResult);
         if (okHttpClient == null) {
             return authFailedNotification(stepResult, username);
         }
@@ -544,7 +437,8 @@ public abstract class ProviderApiBase extends IntentService {
         intentUpdate.setAction(UPDATE_PROGRESSBAR);
         intentUpdate.addCategory(Intent.CATEGORY_DEFAULT);
         intentUpdate.putExtra(CURRENT_PROGRESS, progress);
-        sendBroadcast(intentUpdate);
+        serviceCallback.broadcastProgress(intentUpdate);
+        //sendBroadcast(intentUpdate);
     }
 
     /**
@@ -646,10 +540,10 @@ public abstract class ProviderApiBase extends IntentService {
     }
 
     private String requestStringFromServer(String url, String request_method, String jsonString, List<Pair<String, String>> headerArgs, @NonNull OkHttpClient okHttpClient) {
-        Response response;
+        //Response response;
         String plainResponseBody = null;
 
-        RequestBody jsonBody = jsonString != null ? RequestBody.create(JSON, jsonString) : null;
+        /*RequestBody jsonBody = jsonString != null ? RequestBody.create(JSON, jsonString) : null;
         Request.Builder requestBuilder = new Request.Builder()
                 .url(url)
                 .method(request_method, jsonBody);
@@ -662,16 +556,17 @@ public abstract class ProviderApiBase extends IntentService {
         String locale = Locale.getDefault().getLanguage() + Locale.getDefault().getCountry();
         requestBuilder.addHeader("Accept-Language", locale);
         Request request = requestBuilder.build();
-
+*/
         try {
-            response = okHttpClient.newCall(request).execute();
-
-            InputStream inputStream = response.body().byteStream();
-            Scanner scanner = new Scanner(inputStream).useDelimiter("\\A");
-            if (scanner.hasNext()) {
-                plainResponseBody = scanner.next();
-            }
-
+            //response = okHttpClient.newCall(request).execute();
+            //response = ProviderApiConnector.requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient);
+            //InputStream inputStream = response.body().byteStream();
+            //Scanner scanner = new Scanner(inputStream).useDelimiter("\\A");
+            //if (scanner.hasNext()) {
+            //    plainResponseBody = scanner.next();
+            //}
+
+            plainResponseBody = ProviderApiConnector.requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient);
         } catch (NullPointerException npe) {
             plainResponseBody = formatErrorMessage(error_json_exception_user_message);
         } catch (UnknownHostException | SocketTimeoutException e) {
@@ -742,14 +637,12 @@ public abstract class ProviderApiBase extends IntentService {
                     String fingerprint = provider_json.getString(Provider.CA_CERT_FINGERPRINT);
                     String encoding = fingerprint.split(":")[0];
                     String expected_fingerprint = fingerprint.split(":")[1];
-                    String real_fingerprint = base64toHex(Base64.encodeToString(
-                            MessageDigest.getInstance(encoding).digest(certificate.getEncoded()),
-                            Base64.DEFAULT));
+                    String real_fingerprint = getFingerprintFromCertificate(certificate, encoding);
 
                     result = real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim());
                 } else
                     result = false;
-            } catch (JSONException | NoSuchAlgorithmException | CertificateEncodingException e) {
+            } catch (JSONException | NoSuchAlgorithmException | CertificateEncodingException /*| UnsupportedEncodingException*/ e) {
                 result = false;
             }
         }
@@ -757,8 +650,11 @@ public abstract class ProviderApiBase extends IntentService {
         return result;
     }
 
+
+
     protected void checkPersistedProviderUpdates() {
-        String providerDomain = getProviderDomain(providerDefinition);
+        //String providerDomain = getProviderDomain(providerDefinition);
+        String providerDomain = getDomainFromMainURL(lastProviderMainUrl);
         if (hasUpdatedProviderDetails(providerDomain)) {
             providerCaCert = getPersistedProviderCA(providerDomain);
             providerDefinition = getPersistedProviderDefinition(providerDomain);
@@ -787,7 +683,7 @@ public abstract class ProviderApiBase extends IntentService {
         } catch (JSONException e) {
             e.printStackTrace();
             result.putBoolean(RESULT_KEY, false);
-            result = setErrorResult(result,  getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString());
+            result = setErrorResult(result,  resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString());
         }
 
         return result;
@@ -803,22 +699,21 @@ public abstract class ProviderApiBase extends IntentService {
 
         X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(cert_string);
         if (certificate == null) {
-            return setErrorResult(result, getString(R.string.warning_corrupted_provider_cert), ERROR_INVALID_CERTIFICATE.toString());
+            return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_INVALID_CERTIFICATE.toString());
         }
         try {
             certificate.checkValidity();
             String fingerprint = getCaCertFingerprint(providerDefinition);
             String encoding = fingerprint.split(":")[0];
             String expected_fingerprint = fingerprint.split(":")[1];
-            String real_fingerprint = base64toHex(Base64.encodeToString(
-                    MessageDigest.getInstance(encoding).digest(certificate.getEncoded()),
-                    Base64.DEFAULT));
+            String real_fingerprint = getFingerprintFromCertificate(certificate, encoding);
             if (!real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim())) {
-                return setErrorResult(result, getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString());
+                return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString());
             }
 
+
             if (!hasApiUrlExpectedDomain(providerDefinition, mainUrl)){
-                return setErrorResult(result, getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString());
+                return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString());
             }
 
             if (!canConnect(cert_string, providerDefinition, result)) {
@@ -827,10 +722,12 @@ public abstract class ProviderApiBase extends IntentService {
         } catch (NoSuchAlgorithmException e ) {
             return setErrorResult(result, resources.getString(error_no_such_algorithm_exception_user_message), null);
         } catch (ArrayIndexOutOfBoundsException e) {
-            return setErrorResult(result, getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString());
+            return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString());
         } catch (CertificateEncodingException | CertificateNotYetValidException | CertificateExpiredException e) {
-            return setErrorResult(result, getString(R.string.warning_expired_provider_cert), ERROR_INVALID_CERTIFICATE.toString());
-        }
+            return setErrorResult(result, resources.getString(R.string.warning_expired_provider_cert), ERROR_INVALID_CERTIFICATE.toString());
+        } /*catch (UnsupportedEncodingException e) {
+            return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString());
+        }*/
 
         result.putBoolean(RESULT_KEY, true);
         return result;
@@ -870,13 +767,23 @@ public abstract class ProviderApiBase extends IntentService {
         JSONObject errorJson = new JSONObject();
         String baseUrl = getApiUrl(providerDefinition);
 
-        OkHttpClient okHttpClient = initSelfSignedCAHttpClient(errorJson, caCert);
+        OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(errorJson, caCert);
         if (okHttpClient == null) {
             result.putString(ERRORS, errorJson.toString());
             return false;
         }
 
-        List<Pair<String, String>> headerArgs = getAuthorizationHeader();
+        //try {
+
+        return ProviderApiConnector.canConnect(okHttpClient, baseUrl);
+        /*} catch (RuntimeException | IOException e) {
+            e.printStackTrace();
+        }*/
+
+        //return false;
+
+
+        /*List<Pair<String, String>> headerArgs = getAuthorizationHeader();
         String plain_response = requestStringFromServer(baseUrl, "GET", null, headerArgs, okHttpClient);
 
         try {
@@ -888,7 +795,7 @@ public abstract class ProviderApiBase extends IntentService {
             //eat me
         }
 
-        return true;
+        return true;*/
     }
 
     protected String getCaCertFingerprint(JSONObject providerDefinition) {
@@ -964,8 +871,13 @@ public abstract class ProviderApiBase extends IntentService {
         return "";
     }
 
-    protected boolean hasUpdatedProviderDetails(String providerDomain) {
-        return preferences.contains(Provider.KEY + "." + providerDomain) && preferences.contains(Provider.CA_CERT + "." + providerDomain);
+    protected boolean hasUpdatedProviderDetails(String domain) {
+        return preferences.contains(Provider.KEY + "." + domain) && preferences.contains(Provider.CA_CERT + "." + domain);
+    }
+
+    protected String getDomainFromMainURL(String mainUrl) {
+        return mainUrl.replaceFirst("http[s]?://", "").replaceFirst("/.*", "");
+
     }
 
     /**
@@ -983,6 +895,8 @@ public abstract class ProviderApiBase extends IntentService {
         } catch (JSONException e) {
             // TODO Auto-generated catch block
             error_message = string_json_error_message;
+        } catch (NullPointerException e) {
+            //do nothing
         }
 
         return error_message;
@@ -999,7 +913,7 @@ public abstract class ProviderApiBase extends IntentService {
     }
 
     private boolean logOut() {
-        OkHttpClient okHttpClient = initSelfSignedCAHttpClient(new JSONObject());
+        OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(new JSONObject());
         if (okHttpClient == null) {
             return false;
         }
@@ -1007,23 +921,32 @@ public abstract class ProviderApiBase extends IntentService {
         String deleteUrl = providerApiUrl + "/logout";
         int progress = 0;
 
-        Request.Builder requestBuilder = new Request.Builder()
+       /* Request.Builder requestBuilder = new Request.Builder()
                 .url(deleteUrl)
                 .delete();
-        Request request = requestBuilder.build();
-
-        try {
-            Response response = okHttpClient.newCall(request).execute();
-                                            // v---- was already not authorized
-            if (response.isSuccessful() || response.code() == 401) {
-                broadcastProgress(progress++);
-                LeapSRPSession.setToken("");
-            }
-
-        } catch (IOException e) {
-            return false;
+        Request request = requestBuilder.build();*/
+
+        //try {
+
+            //Response response = okHttpClient.newCall(request).execute();
+//            Response response = ProviderApiConnector.delete(okHttpClient, deleteUrl);
+//                                            // v---- was already not authorized
+//            if (response.isSuccessful() || response.code() == 401) {
+//                broadcastProgress(progress++);
+//                LeapSRPSession.setToken("");
+//            }
+//
+//        } catch (IOException | RuntimeException e) {
+//            return false;
+//        }
+//        return true;
+
+        if (ProviderApiConnector.delete(okHttpClient, deleteUrl)) {
+            broadcastProgress(progress++);
+            LeapSRPSession.setToken("");
+            return true;
         }
-        return true;
+        return false;
     }
 
     //FIXME: don't save private keys in shared preferences! use the keystore
diff --git a/app/src/main/java/se/leap/bitmaskclient/userstatus/SessionDialog.java b/app/src/main/java/se/leap/bitmaskclient/userstatus/SessionDialog.java
index 61349490..bd9324bb 100644
--- a/app/src/main/java/se/leap/bitmaskclient/userstatus/SessionDialog.java
+++ b/app/src/main/java/se/leap/bitmaskclient/userstatus/SessionDialog.java
@@ -23,8 +23,6 @@ import android.view.*;
 import android.widget.*;
 
 import butterknife.*;
-import se.leap.bitmaskclient.ProviderAPI;
-import se.leap.bitmaskclient.VpnFragment;
 import se.leap.bitmaskclient.Provider;
 import se.leap.bitmaskclient.R;