Encrypt myCloudogu refresh token on file system (#1923)

Encrypt myCloudogu refresh token on file system and update current stored tokens using an update step.

scm-webapp/src/test/java/sonia/scm/update/plugin/PluginCenterAuthentiationUpdateStepTest.java

@@ -0,0 +1,94 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020-present Cloudogu GmbH and Contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package sonia.scm.update.plugin;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Answers;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import sonia.scm.plugin.PluginCenterAuthenticator;
+import sonia.scm.store.ConfigurationStore;
+import sonia.scm.store.ConfigurationStoreFactory;
+
+import java.time.Instant;
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.argThat;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class PluginCenterAuthenticationUpdateStepTest {
+
+  private PluginCenterAuthenticationUpdateStep updateStep;
+  @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+  private ConfigurationStoreFactory configurationStoreFactory;
+  @Mock
+  private ConfigurationStore<PluginCenterAuthenticator.Authentication> configurationStore;
+
+  @BeforeEach
+  void initUpdateStep() {
+    when(configurationStoreFactory.withType(PluginCenterAuthenticator.Authentication.class).withName("plugin-center-auth").build())
+      .thenReturn(configurationStore);
+    updateStep = new PluginCenterAuthenticationUpdateStep(configurationStoreFactory);
+  }
+
+  @Test
+  void shouldNotUpdateIfConfigFileNotAvailable() throws Exception {
+    when(configurationStore.getOptional()).thenReturn(Optional.empty());
+
+    updateStep.doUpdate();
+
+    verify(configurationStore, never()).set(any());
+  }
+
+  @Test
+  void shouldUpdateIfRefreshTokenNotEncrypted() throws Exception {
+    when(configurationStore.getOptional())
+      .thenReturn(Optional.of(new PluginCenterAuthenticator.Authentication("trillian", "trillian", "some_not_encrypted_token", Instant.now())));
+
+    updateStep.doUpdate();
+
+    verify(configurationStore).set(argThat(config -> {
+      assertThat(config.getRefreshToken()).startsWith("{enc}");
+      return true;
+    }));
+  }
+
+  @Test
+  void shouldNotUpdateIfRefreshTokenIsAlreadyEncrypted() throws Exception {
+    when(configurationStore.getOptional())
+      .thenReturn(Optional.of(new PluginCenterAuthenticator.Authentication("trillian", "trillian", "{enc}my_encrypted_token", Instant.now())));
+
+    updateStep.doUpdate();
+
+    verify(configurationStore, never()).set(any());
+  }
+}