1 files changed, 97 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/restapi/project/PutDescription.java b/java/com/google/gerrit/server/restapi/project/PutDescription.java
new file mode 100644
index 0000000000..1c74021b95
--- /dev/null
+++ b/java/com/google/gerrit/server/restapi/project/PutDescription.java
@@ -0,0 +1,97 @@
+// Copyright (C) 2012 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.server.restapi.project;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.base.Strings;
+import com.google.gerrit.extensions.api.projects.DescriptionInput;
+import com.google.gerrit.extensions.restapi.AuthException;
+import com.google.gerrit.extensions.restapi.ResourceConflictException;
+import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
+import com.google.gerrit.extensions.restapi.Response;
+import com.google.gerrit.extensions.restapi.RestModifyView;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.IdentifiedUser;
+import com.google.gerrit.server.git.meta.MetaDataUpdate;
+import com.google.gerrit.server.permissions.PermissionBackend;
+import com.google.gerrit.server.permissions.PermissionBackendException;
+import com.google.gerrit.server.permissions.ProjectPermission;
+import com.google.gerrit.server.project.ProjectCache;
+import com.google.gerrit.server.project.ProjectConfig;
+import com.google.gerrit.server.project.ProjectResource;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import java.io.IOException;
+import org.eclipse.jgit.errors.ConfigInvalidException;
+import org.eclipse.jgit.errors.RepositoryNotFoundException;
+
+@Singleton
+public class PutDescription implements RestModifyView<ProjectResource, DescriptionInput> {
+  private final ProjectCache cache;
+  private final MetaDataUpdate.Server updateFactory;
+  private final PermissionBackend permissionBackend;
+
+  @Inject
+  PutDescription(
+      ProjectCache cache,
+      MetaDataUpdate.Server updateFactory,
+      PermissionBackend permissionBackend) {
+    this.cache = cache;
+    this.updateFactory = updateFactory;
+    this.permissionBackend = permissionBackend;
+  }
+
+  @Override
+  public Response<String> apply(ProjectResource resource, DescriptionInput input)
+      throws AuthException, ResourceConflictException, ResourceNotFoundException, IOException,
+          PermissionBackendException {
+    if (input == null) {
+      input = new DescriptionInput(); // Delete would set description to null.
+    }
+
+    IdentifiedUser user = resource.getUser().asIdentifiedUser();
+    permissionBackend
+        .user(user)
+        .project(resource.getNameKey())
+        .check(ProjectPermission.WRITE_CONFIG);
+
+    try (MetaDataUpdate md = updateFactory.create(resource.getNameKey())) {
+      ProjectConfig config = ProjectConfig.read(md);
+      Project project = config.getProject();
+      project.setDescription(Strings.emptyToNull(input.description));
+
+      String msg =
+          MoreObjects.firstNonNull(
+              Strings.emptyToNull(input.commitMessage), "Updated description.\n");
+      if (!msg.endsWith("\n")) {
+        msg += "\n";
+      }
+      md.setAuthor(user);
+      md.setMessage(msg);
+      config.commit(md);
+      cache.evict(resource.getProjectState().getProject());
+      md.getRepository().setGitwebDescription(project.getDescription());
+
+      return Strings.isNullOrEmpty(project.getDescription())
+          ? Response.<String>none()
+          : Response.ok(project.getDescription());
+    } catch (RepositoryNotFoundException notFound) {
+      throw new ResourceNotFoundException(resource.getName());
+    } catch (ConfigInvalidException e) {
+      throw new ResourceConflictException(
+          String.format("invalid project.config: %s", e.getMessage()));
+    }
+  }
+}