1 files changed, 112 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/restapi/account/DeleteExternalIds.java b/java/com/google/gerrit/server/restapi/account/DeleteExternalIds.java
new file mode 100644
index 0000000000..9fb535c114
--- /dev/null
+++ b/java/com/google/gerrit/server/restapi/account/DeleteExternalIds.java
@@ -0,0 +1,112 @@
+// Copyright (C) 2017 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.account;
+
+import static com.google.gerrit.server.account.externalids.ExternalId.SCHEME_USERNAME;
+import static java.util.stream.Collectors.toMap;
+import static java.util.stream.Collectors.toSet;
+
+import com.google.gerrit.extensions.restapi.BadRequestException;
+import com.google.gerrit.extensions.restapi.ResourceConflictException;
+import com.google.gerrit.extensions.restapi.Response;
+import com.google.gerrit.extensions.restapi.RestApiException;
+import com.google.gerrit.extensions.restapi.RestModifyView;
+import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
+import com.google.gerrit.server.CurrentUser;
+import com.google.gerrit.server.account.AccountException;
+import com.google.gerrit.server.account.AccountManager;
+import com.google.gerrit.server.account.AccountResource;
+import com.google.gerrit.server.account.externalids.ExternalId;
+import com.google.gerrit.server.account.externalids.ExternalIds;
+import com.google.gerrit.server.permissions.GlobalPermission;
+import com.google.gerrit.server.permissions.PermissionBackend;
+import com.google.gerrit.server.permissions.PermissionBackendException;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.function.Function;
+import org.eclipse.jgit.errors.ConfigInvalidException;
+
+@Singleton
+public class DeleteExternalIds implements RestModifyView<AccountResource, List<String>> {
+  private final PermissionBackend permissionBackend;
+  private final AccountManager accountManager;
+  private final ExternalIds externalIds;
+  private final Provider<CurrentUser> self;
+
+  @Inject
+  DeleteExternalIds(
+      PermissionBackend permissionBackend,
+      AccountManager accountManager,
+      ExternalIds externalIds,
+      Provider<CurrentUser> self) {
+    this.permissionBackend = permissionBackend;
+    this.accountManager = accountManager;
+    this.externalIds = externalIds;
+    this.self = self;
+  }
+
+  @Override
+  public Response<?> apply(AccountResource resource, List<String> extIds)
+      throws RestApiException, IOException, OrmException, ConfigInvalidException,
+          PermissionBackendException {
+    if (!self.get().hasSameAccountId(resource.getUser())) {
+      permissionBackend.currentUser().check(GlobalPermission.ACCESS_DATABASE);
+    }
+
+    if (extIds == null || extIds.size() == 0) {
+      throw new BadRequestException("external IDs are required");
+    }
+
+    Map<ExternalId.Key, ExternalId> externalIdMap =
+        externalIds.byAccount(resource.getUser().getAccountId()).stream()
+            .collect(toMap(ExternalId::key, Function.identity()));
+
+    List<ExternalId> toDelete = new ArrayList<>();
+    Optional<ExternalId.Key> last = resource.getUser().getLastLoginExternalIdKey();
+    for (String externalIdStr : extIds) {
+      ExternalId id = externalIdMap.get(ExternalId.Key.parse(externalIdStr));
+
+      if (id == null) {
+        throw new UnprocessableEntityException(
+            String.format("External id %s does not exist", externalIdStr));
+      }
+
+      if ((!id.isScheme(SCHEME_USERNAME))
+          && (!last.isPresent() || (!last.get().equals(id.key())))) {
+        toDelete.add(id);
+      } else {
+        throw new ResourceConflictException(
+            String.format("External id %s cannot be deleted", externalIdStr));
+      }
+    }
+
+    try {
+      accountManager.unlink(
+          resource.getUser().getAccountId(),
+          toDelete.stream().map(ExternalId::key).collect(toSet()));
+    } catch (AccountException e) {
+      throw new ResourceConflictException(e.getMessage());
+    }
+
+    return Response.none();
+  }
+}