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// 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.account;
import static com.google.gerrit.common.data.GlobalCapability.PRIORITY;
import static com.google.gerrit.server.permissions.DefaultPermissionMappings.globalOrPluginPermissionName;
import static com.google.gerrit.server.permissions.DefaultPermissionMappings.globalPermissionName;
import static com.google.gerrit.server.permissions.DefaultPermissionMappings.pluginPermissionName;
import com.google.common.collect.Iterables;
import com.google.gerrit.common.data.GlobalCapability;
import com.google.gerrit.common.data.PermissionRange;
import com.google.gerrit.extensions.api.access.GlobalOrPluginPermission;
import com.google.gerrit.extensions.api.access.PluginPermission;
import com.google.gerrit.extensions.config.CapabilityDefinition;
import com.google.gerrit.extensions.registration.DynamicMap;
import com.google.gerrit.extensions.restapi.BinaryResult;
import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.OptionUtil;
import com.google.gerrit.server.OutputFormat;
import com.google.gerrit.server.account.AccountLimits;
import com.google.gerrit.server.account.AccountResource;
import com.google.gerrit.server.account.AccountResource.Capability;
import com.google.gerrit.server.git.QueueProvider;
import com.google.gerrit.server.permissions.GlobalPermission;
import com.google.gerrit.server.permissions.PermissionBackend;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gson.reflect.TypeToken;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import org.kohsuke.args4j.Option;
public class GetCapabilities implements RestReadView<AccountResource> {
@Option(name = "-q", metaVar = "CAP", usage = "Capability to inspect")
void addQuery(String name) {
if (query == null) {
query = new HashSet<>();
}
Iterables.addAll(query, OptionUtil.splitOptionValue(name));
}
private Set<String> query;
private final PermissionBackend permissionBackend;
private final AccountLimits.Factory limitsFactory;
private final Provider<CurrentUser> self;
private final DynamicMap<CapabilityDefinition> pluginCapabilities;
@Inject
GetCapabilities(
PermissionBackend permissionBackend,
AccountLimits.Factory limitsFactory,
Provider<CurrentUser> self,
DynamicMap<CapabilityDefinition> pluginCapabilities) {
this.permissionBackend = permissionBackend;
this.limitsFactory = limitsFactory;
this.self = self;
this.pluginCapabilities = pluginCapabilities;
}
@Override
public Object apply(AccountResource resource)
throws RestApiException, PermissionBackendException {
permissionBackend.checkUsesDefaultCapabilities();
PermissionBackend.WithUser perm = permissionBackend.currentUser();
if (!self.get().hasSameAccountId(resource.getUser())) {
perm.check(GlobalPermission.ADMINISTRATE_SERVER);
perm = permissionBackend.absentUser(resource.getUser().getAccountId());
}
Map<String, Object> have = new LinkedHashMap<>();
for (GlobalOrPluginPermission p : perm.test(permissionsToTest())) {
have.put(globalOrPluginPermissionName(p), true);
}
AccountLimits limits = limitsFactory.create(resource.getUser());
addRanges(have, limits);
addPriority(have, limits);
return OutputFormat.JSON
.newGson()
.toJsonTree(have, new TypeToken<Map<String, Object>>() {}.getType());
}
private Set<GlobalOrPluginPermission> permissionsToTest() {
Set<GlobalOrPluginPermission> toTest = new HashSet<>();
for (GlobalPermission p : GlobalPermission.values()) {
if (want(globalPermissionName(p))) {
toTest.add(p);
}
}
for (String pluginName : pluginCapabilities.plugins()) {
for (String capability : pluginCapabilities.byPlugin(pluginName).keySet()) {
PluginPermission p = new PluginPermission(pluginName, capability);
if (want(pluginPermissionName(p))) {
toTest.add(p);
}
}
}
return toTest;
}
private boolean want(String name) {
return query == null || query.contains(name.toLowerCase());
}
private void addRanges(Map<String, Object> have, AccountLimits limits) {
for (String name : GlobalCapability.getRangeNames()) {
if (want(name) && limits.hasExplicitRange(name)) {
have.put(name, new Range(limits.getRange(name)));
}
}
}
private void addPriority(Map<String, Object> have, AccountLimits limits) {
QueueProvider.QueueType queue = limits.getQueueType();
if (queue != QueueProvider.QueueType.INTERACTIVE
|| (query != null && query.contains(PRIORITY))) {
have.put(PRIORITY, queue);
}
}
private static class Range {
private transient PermissionRange range;
@SuppressWarnings("unused")
private int min;
@SuppressWarnings("unused")
private int max;
Range(PermissionRange r) {
range = r;
min = r.getMin();
max = r.getMax();
}
@Override
public String toString() {
return range.toString();
}
}
@Singleton
public static class CheckOne implements RestReadView<AccountResource.Capability> {
private final PermissionBackend permissionBackend;
@Inject
CheckOne(PermissionBackend permissionBackend) {
this.permissionBackend = permissionBackend;
}
@Override
public BinaryResult apply(Capability resource) throws ResourceNotFoundException {
permissionBackend.checkUsesDefaultCapabilities();
return BinaryResult.create("ok\n");
}
}
}
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