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/main/java/sonia/scm/plugin/PluginCenterAuthenticator.java

@@ -41,6 +41,7 @@ import sonia.scm.net.ahc.AdvancedHttpResponse;
 import sonia.scm.store.ConfigurationStore;
 import sonia.scm.store.ConfigurationStoreFactory;
 import sonia.scm.util.HttpUtil;
+import sonia.scm.xml.XmlEncryptionAdapter;
 import sonia.scm.xml.XmlInstantAdapter;
 
 import javax.inject.Inject;
@@ -151,13 +152,13 @@ public class PluginCenterAuthenticator {
 
   @Data
   @XmlRootElement
-  @VisibleForTesting
   @AllArgsConstructor
   @NoArgsConstructor
   @XmlAccessorType(XmlAccessType.FIELD)
-  static class Authentication implements AuthenticationInfo {
+  public static class Authentication implements AuthenticationInfo {
     private String principal;
     private String pluginCenterSubject;
+    @XmlJavaTypeAdapter(XmlEncryptionAdapter.class)
     private String refreshToken;
     @XmlJavaTypeAdapter(XmlInstantAdapter.class)
     private Instant date;

scm-webapp/src/main/java/sonia/scm/update/plugin/PluginCenterAuthenticationUpdateStep.java

@@ -0,0 +1,78 @@
+/*
+ * 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 com.google.common.base.Strings;
+import sonia.scm.migration.UpdateStep;
+import sonia.scm.plugin.Extension;
+import sonia.scm.plugin.PluginCenterAuthenticator;
+import sonia.scm.security.CipherUtil;
+import sonia.scm.store.ConfigurationStore;
+import sonia.scm.store.ConfigurationStoreFactory;
+import sonia.scm.version.Version;
+
+import javax.inject.Inject;
+
+import static sonia.scm.version.Version.parse;
+
+@Extension
+public class PluginCenterAuthenticationUpdateStep implements UpdateStep {
+
+  private final ConfigurationStoreFactory configurationStoreFactory;
+
+  @Inject
+  public PluginCenterAuthenticationUpdateStep(ConfigurationStoreFactory configurationStoreFactory) {
+    this.configurationStoreFactory = configurationStoreFactory;
+  }
+
+  @Override
+  public void doUpdate() throws Exception {
+    ConfigurationStore<PluginCenterAuthenticator.Authentication> configurationStore = configurationStoreFactory
+      .withType(PluginCenterAuthenticator.Authentication.class)
+      .withName("plugin-center-auth")
+      .build();
+    configurationStore.getOptional()
+      .ifPresent(config -> {
+        String token = config.getRefreshToken();
+        CipherUtil cipher = CipherUtil.getInstance();
+        if (Strings.isNullOrEmpty(token) || !token.startsWith("{enc}")) {
+          token = "{enc}".concat(cipher.encode(token));
+          config.setRefreshToken(token);
+          configurationStore.set(config);
+        }
+      });
+  }
+
+
+  @Override
+  public Version getTargetVersion() {
+    return parse("2.30.0");
+  }
+
+  @Override
+  public String getAffectedDataType() {
+    return "sonia.scm.plugin-center.authentication";
+  }
+}