1 files changed, 146 insertions, 0 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/account/VisibleGroups.java b/gerrit-server/src/main/java/com/google/gerrit/server/account/VisibleGroups.java
new file mode 100644
index 0000000000..3112ed4ec0
--- /dev/null
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/account/VisibleGroups.java
@@ -0,0 +1,146 @@
+// Copyright (C) 2011 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.account;
+
+import com.google.gerrit.common.data.GroupDetail;
+import com.google.gerrit.common.data.GroupList;
+import com.google.gerrit.common.data.GroupReference;
+import com.google.gerrit.common.errors.NoSuchGroupException;
+import com.google.gerrit.reviewdb.client.AccountGroup;
+import com.google.gerrit.server.IdentifiedUser;
+import com.google.gerrit.server.project.ProjectControl;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+import java.util.TreeSet;
+
+public class VisibleGroups {
+
+  public interface Factory {
+    VisibleGroups create();
+  }
+
+  private final Provider<IdentifiedUser> identifiedUser;
+  private final GroupCache groupCache;
+  private final GroupControl.Factory groupControlFactory;
+  private final GroupDetailFactory.Factory groupDetailFactory;
+
+  private boolean onlyVisibleToAll;
+  private AccountGroup.Type groupType;
+
+  @Inject
+  VisibleGroups(final Provider<IdentifiedUser> currentUser,
+      final GroupCache groupCache,
+      final GroupControl.Factory groupControlFactory,
+      final GroupDetailFactory.Factory groupDetailFactory) {
+    this.identifiedUser = currentUser;
+    this.groupCache = groupCache;
+    this.groupControlFactory = groupControlFactory;
+    this.groupDetailFactory = groupDetailFactory;
+  }
+
+  public void setOnlyVisibleToAll(final boolean onlyVisibleToAll) {
+    this.onlyVisibleToAll = onlyVisibleToAll;
+  }
+
+  public void setGroupType(final AccountGroup.Type groupType) {
+    this.groupType = groupType;
+  }
+
+  public GroupList get() throws OrmException, NoSuchGroupException {
+    final Iterable<AccountGroup> groups = groupCache.all();
+    return createGroupList(filterGroups(groups));
+  }
+
+  public GroupList get(final Collection<ProjectControl> projects)
+      throws OrmException, NoSuchGroupException {
+    final Set<AccountGroup> groups =
+        new TreeSet<AccountGroup>(new GroupComparator());
+    for (final ProjectControl projectControl : projects) {
+      final Set<GroupReference> groupsRefs = projectControl.getAllGroups();
+      for (final GroupReference groupRef : groupsRefs) {
+        final AccountGroup group = groupCache.get(groupRef.getUUID());
+        if (group == null) {
+          throw new NoSuchGroupException(groupRef.getUUID());
+        }
+        groups.add(group);
+      }
+    }
+    return createGroupList(filterGroups(groups));
+  }
+
+  /**
+   * Returns visible list of known groups for the user. Depending on the group
+   * membership realms supported, this may only return a subset of the effective
+   * groups.
+   * @See GroupMembership#getKnownGroups()
+   */
+  public GroupList get(final IdentifiedUser user) throws OrmException,
+      NoSuchGroupException {
+    if (identifiedUser.get().getAccountId().equals(user.getAccountId())
+        || identifiedUser.get().getCapabilities().canAdministrateServer()) {
+      final Set<AccountGroup.UUID> effective =
+          user.getEffectiveGroups().getKnownGroups();
+      final Set<AccountGroup> groups =
+          new TreeSet<AccountGroup>(new GroupComparator());
+      for (final AccountGroup.UUID groupId : effective) {
+        AccountGroup group = groupCache.get(groupId);
+        if (group != null) {
+          groups.add(group);
+        }
+      }
+      return createGroupList(filterGroups(groups));
+    } else {
+      throw new NoSuchGroupException("Groups of user '" + user.getAccountId()
+          + "' are not visible.");
+    }
+  }
+
+  private List<AccountGroup> filterGroups(final Iterable<AccountGroup> groups) {
+    final List<AccountGroup> filteredGroups = new LinkedList<AccountGroup>();
+    final boolean isAdmin =
+        identifiedUser.get().getCapabilities().canAdministrateServer();
+    for (final AccountGroup group : groups) {
+      if (!isAdmin) {
+        final GroupControl c = groupControlFactory.controlFor(group);
+        if (!c.isVisible()) {
+          continue;
+        }
+      }
+      if ((onlyVisibleToAll && !group.isVisibleToAll())
+          || (groupType != null && !groupType.equals(group.getType()))) {
+        continue;
+      }
+      filteredGroups.add(group);
+    }
+    return filteredGroups;
+  }
+
+  private GroupList createGroupList(final List<AccountGroup> groups)
+      throws OrmException, NoSuchGroupException {
+    final List<GroupDetail> groupDetailList = new ArrayList<GroupDetail>();
+    for (final AccountGroup group : groups) {
+      groupDetailList.add(groupDetailFactory.create(group.getId()).call());
+    }
+    return new GroupList(groupDetailList, identifiedUser.get()
+        .getCapabilities().canCreateGroup());
+  }
+}