Added token refresh.

app/src/main/java/net/schueller/peertube/network/AccessTokenAuthenticator.java

@@ -0,0 +1,49 @@
+package net.schueller.peertube.network;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import okhttp3.Authenticator;
+import okhttp3.Request;
+import okhttp3.Response;
+import okhttp3.Route;
+
+public class AccessTokenAuthenticator implements Authenticator {
+
+    public AccessTokenAuthenticator() {
+    }
+
+    @Nullable
+    @Override
+    public Request authenticate(Route route, @NonNull Response response) {
+        Session session = Session.getInstance();
+
+        final String accessToken = session.getToken();
+        if (!isRequestWithAccessToken(response) || accessToken == null) {
+            return null;
+        }
+        synchronized (this) {
+            final String newAccessToken = session.getToken();
+            // Access token is refreshed in another thread.
+            if (!accessToken.equals(newAccessToken)) {
+                return newRequestWithAccessToken(response.request(), newAccessToken);
+            }
+
+            // Need to refresh an access token
+            final String updatedAccessToken = session.refreshAccessToken();
+            return newRequestWithAccessToken(response.request(), updatedAccessToken);
+        }
+    }
+
+    private boolean isRequestWithAccessToken(@NonNull Response response) {
+        String header = response.request().header("Authorization");
+        return header != null && header.startsWith("Bearer");
+    }
+
+    @NonNull
+    private Request newRequestWithAccessToken(@NonNull Request request, @NonNull String accessToken) {
+        return request.newBuilder()
+                .header("Authorization", accessToken)
+                .build();
+    }
+}

app/src/main/java/net/schueller/peertube/network/AuthenticationService.java

@@ -42,4 +42,14 @@ public interface AuthenticationService {
         @Field("password") String password
     );
 
+    @POST("users/token")
+    @FormUrlEncoded
+    Call<Token> refreshToken(
+            @Field("client_id") String clientId,
+            @Field("client_secret") String clientSecret,
+            @Field("grant_type") String grantType,
+            @Field("response_type") String responseType,
+            @Field("username") String username,
+            @Field("refresh_token") String refreshToken
+    );
 }

app/src/main/java/net/schueller/peertube/network/AuthorizationInterceptor.java

@@ -20,6 +20,8 @@ package net.schueller.peertube.network;
 
 import android.util.Log;
 
+import androidx.annotation.NonNull;
+
 import java.io.IOException;
 
 import okhttp3.Interceptor;
@@ -31,8 +33,7 @@ public class AuthorizationInterceptor implements Interceptor {
     public AuthorizationInterceptor() {
     }
 
-
+    @NonNull
-
     @Override
     public Response intercept(Chain chain) throws IOException {
 

app/src/main/java/net/schueller/peertube/network/RetrofitInstance.java

@@ -33,6 +33,7 @@ public class RetrofitInstance {
             OkHttpClient.Builder okhttpClientBuilder = new OkHttpClient.Builder();
 
             okhttpClientBuilder.addInterceptor(new AuthorizationInterceptor());
+            okhttpClientBuilder.authenticator(new AccessTokenAuthenticator());
 
             retrofit = new retrofit2.Retrofit.Builder()
                     .client(okhttpClientBuilder.build())

app/src/main/java/net/schueller/peertube/network/Session.java

@@ -20,24 +20,25 @@ package net.schueller.peertube.network;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
-import android.util.Log;
 
 import net.schueller.peertube.R;
 import net.schueller.peertube.application.AppApplication;
 
+import static net.schueller.peertube.service.LoginService.refreshToken;
+
 public class Session {
 
     private static volatile Session sSoleInstance;
     private static SharedPreferences sharedPreferences;
 
     //private constructor.
-    private Session(){
+    private Session() {
 
         Context context = AppApplication.getContext();
         sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
 
         //Prevent form the reflection api.
-        if (sSoleInstance != null){
+        if (sSoleInstance != null) {
             throw new RuntimeException("Use getInstance() method to get the single instance of this class.");
         }
     }
@@ -58,7 +59,6 @@ public class Session {
     }
 
 
-
     public boolean isLoggedIn() {
         // check if token exist or not
         // return true if exist otherwise false
@@ -69,13 +69,6 @@ public class Session {
         return getToken() != null;
     }
 
-    public void saveToken(String token) {
-        // save the token
-        SharedPreferences.Editor editor = sharedPreferences.edit();
-        editor.putString(AppApplication.getContext().getString(R.string.pref_token_access), token);
-        editor.commit();
-    }
-
     public String getToken() {
         // return the token that was saved earlier
 
@@ -89,27 +82,19 @@ public class Session {
         return null;
     }
 
-    public void saveUsername(String username) {
-        SharedPreferences.Editor editor = sharedPreferences.edit();
-        editor.putString(AppApplication.getContext().getString(R.string.pref_auth_username), username);
-        editor.commit();
-    }
-
-    public String getEmail() {
-        return sharedPreferences.getString(AppApplication.getContext().getString(R.string.pref_auth_username), null);
-    }
-
-    public void savePassword(String password) {
-        SharedPreferences.Editor editor = sharedPreferences.edit();
-        editor.putString(AppApplication.getContext().getString(R.string.pref_auth_password), password);
-        editor.commit();
-    }
-
     public String getPassword() {
         return sharedPreferences.getString(AppApplication.getContext().getString(R.string.pref_auth_password), null);
 
     }
 
+    public String refreshAccessToken() {
+
+        refreshToken();
+        // refresh token
+
+        return this.getToken();
+    }
+
     public void invalidate() {
         // get called when user become logged out
         // delete token and other user info

app/src/main/java/net/schueller/peertube/service/LoginService.java

@@ -26,6 +26,7 @@ import android.widget.Toast;
 import androidx.annotation.NonNull;
 
 import net.schueller.peertube.R;
+import net.schueller.peertube.application.AppApplication;
 import net.schueller.peertube.helper.APIUrlHelper;
 import net.schueller.peertube.model.OauthClient;
 import net.schueller.peertube.model.Token;
@@ -42,8 +43,7 @@ public class LoginService {
 
     private static final String TAG = "LoginService";
 
-    public static void Authenticate(String username, String password)
+    public static void Authenticate(String username, String password) {
-    {
         Context context = getContext();
 
         String apiBaseURL = APIUrlHelper.getUrlWithVersion(context);
@@ -62,6 +62,14 @@ public class LoginService {
 
                     OauthClient oauthClient = response.body();
 
+                    SharedPreferences.Editor editor = sharedPref.edit();
+
+                    assert oauthClient != null;
+
+                    editor.putString(context.getString(R.string.pref_client_id), oauthClient.getClientId());
+                    editor.putString(context.getString(R.string.pref_client_secret), oauthClient.getClientSecret());
+                    editor.apply();
+
                     Call<Token> call2 = service.getAuthenticationToken(
                             oauthClient.getClientId(),
                             oauthClient.getClientSecret(),
@@ -79,11 +87,7 @@ public class LoginService {
 
                                 Token token = response2.body();
 
-                                SharedPreferences.Editor editor = sharedPref.edit();
+                                assert token != null;
-
-                                // TODO: calc expiration
-                                //editor.putInt(getString(R.string.pref_token_expiration), token.getRefreshToken());
-
                                 editor.putString(context.getString(R.string.pref_token_access), token.getAccessToken());
                                 editor.putString(context.getString(R.string.pref_token_refresh), token.getExpiresIn());
                                 editor.putString(context.getString(R.string.pref_token_type), token.getTokenType());
@@ -124,4 +128,62 @@ public class LoginService {
             }
         });
     }
+
+    public static void refreshToken() {
+        Context context = getContext();
+
+        String apiBaseURL = APIUrlHelper.getUrlWithVersion(context);
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        AuthenticationService service = RetrofitInstance.getRetrofitInstance(apiBaseURL).create(AuthenticationService.class);
+
+        String refreshToken = sharedPreferences.getString(AppApplication.getContext().getString(R.string.pref_token_refresh), null);
+        String userName = sharedPreferences.getString(AppApplication.getContext().getString(R.string.pref_auth_username), null);
+        String clientId = sharedPreferences.getString(AppApplication.getContext().getString(R.string.pref_client_id), null);
+        String clientSecret = sharedPreferences.getString(AppApplication.getContext().getString(R.string.pref_client_secret), null);
+
+
+        Call<Token> call = service.refreshToken(
+                clientId,
+                clientSecret,
+                "refresh_token",
+                "code",
+                userName,
+                refreshToken
+        );
+        call.enqueue(new Callback<Token>() {
+            @Override
+            public void onResponse(@NonNull Call<Token> call, @NonNull retrofit2.Response<Token> response) {
+
+                if (response.isSuccessful()) {
+
+                    Token token = response.body();
+
+                    SharedPreferences.Editor editor = sharedPreferences.edit();
+
+                    assert token != null;
+                    editor.putString(context.getString(R.string.pref_token_access), token.getAccessToken());
+                    editor.putString(context.getString(R.string.pref_token_refresh), token.getExpiresIn());
+                    editor.putString(context.getString(R.string.pref_token_type), token.getTokenType());
+                    editor.apply();
+
+                    Log.wtf(TAG, "Logged in");
+
+                    Toast.makeText(context, context.getString(R.string.authentication_login_success), Toast.LENGTH_LONG).show();
+
+
+                } else {
+                    Log.wtf(TAG, response.toString());
+                    Toast.makeText(context, context.getString(R.string.authentication_login_failed), Toast.LENGTH_LONG).show();
+
+                }
+            }
+
+            @Override
+            public void onFailure(@NonNull Call<Token> call2, @NonNull Throwable t2) {
+                Log.wtf("err", t2.fillInStackTrace());
+                Toast.makeText(context, context.getString(R.string.authentication_login_failed), Toast.LENGTH_LONG).show();
+
+            }
+        });
+    }
 }

app/src/main/res/values/constants.xml

@@ -26,6 +26,8 @@
     <string name="pref_token_type" translatable="false">pref_token_type</string>
     <string name="pref_auth_username" translatable="false">pref_auth_username</string>
     <string name="pref_auth_password" translatable="false">pref_auth_password</string>
+    <string name="pref_client_id" translatable="false">pref_client_id</string>
+    <string name="pref_client_secret" translatable="false">pref_client_secret</string>
     <string name="pref_api_base_key" translatable="false">pref_api_base</string>
     <string name="pref_quality_key" translatable="false">pref_quality</string>
 
@@ -34,6 +36,7 @@
     <string name="pref_background_stop_key" translatable="false">backgroundStop</string>
     <string name="pref_background_float_key" translatable="false">backgroundFloat</string>
 
+
     <string name="peertube_required_server_version" translatable="false">1.0.0-alpha.7</string>
 
     <string name="app_background_audio" translatable="false">BACKGROUND_AUDIO</string>