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/*
* Copyright (C) 2015 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.android.server.wifi;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.os.UserHandle;
import android.os.UserManager;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
public class ConfigurationMap {
private final Map<Integer, WifiConfiguration> mPerID = new HashMap<>();
private final Map<Integer, WifiConfiguration> mPerIDForCurrentUser = new HashMap<>();
private final Map<ScanResultMatchInfo, WifiConfiguration>
mScanResultMatchInfoMapForCurrentUser = new HashMap<>();
private final UserManager mUserManager;
private int mCurrentUserId = UserHandle.USER_SYSTEM;
ConfigurationMap(UserManager userManager) {
mUserManager = userManager;
}
// RW methods:
public WifiConfiguration put(WifiConfiguration config) {
final WifiConfiguration current = mPerID.put(config.networkId, config);
if (WifiConfigurationUtil.isVisibleToAnyProfile(config,
mUserManager.getProfiles(mCurrentUserId))) {
mPerIDForCurrentUser.put(config.networkId, config);
mScanResultMatchInfoMapForCurrentUser.put(
ScanResultMatchInfo.fromWifiConfiguration(config), config);
}
return current;
}
public WifiConfiguration remove(int netID) {
WifiConfiguration config = mPerID.remove(netID);
if (config == null) {
return null;
}
mPerIDForCurrentUser.remove(netID);
Iterator<Map.Entry<ScanResultMatchInfo, WifiConfiguration>> scanResultMatchInfoEntries =
mScanResultMatchInfoMapForCurrentUser.entrySet().iterator();
while (scanResultMatchInfoEntries.hasNext()) {
if (scanResultMatchInfoEntries.next().getValue().networkId == netID) {
scanResultMatchInfoEntries.remove();
break;
}
}
return config;
}
public void clear() {
mPerID.clear();
mPerIDForCurrentUser.clear();
mScanResultMatchInfoMapForCurrentUser.clear();
}
/**
* Sets the new foreground user ID.
*
* @param userId the id of the new foreground user
*/
public void setNewUser(int userId) {
mCurrentUserId = userId;
}
// RO methods:
public WifiConfiguration getForAllUsers(int netid) {
return mPerID.get(netid);
}
public WifiConfiguration getForCurrentUser(int netid) {
return mPerIDForCurrentUser.get(netid);
}
public int sizeForAllUsers() {
return mPerID.size();
}
public int sizeForCurrentUser() {
return mPerIDForCurrentUser.size();
}
public WifiConfiguration getByConfigKeyForCurrentUser(String key) {
if (key == null) {
return null;
}
for (WifiConfiguration config : mPerIDForCurrentUser.values()) {
if (config.configKey().equals(key)) {
return config;
}
}
return null;
}
/**
* Retrieves the |WifiConfiguration| object matching the provided |scanResult| from the internal
* map.
* Essentially checks if network config and scan result have the same SSID and encryption type.
*/
public WifiConfiguration getByScanResultForCurrentUser(ScanResult scanResult) {
return mScanResultMatchInfoMapForCurrentUser.get(
ScanResultMatchInfo.fromScanResult(scanResult));
}
public Collection<WifiConfiguration> valuesForAllUsers() {
return mPerID.values();
}
public Collection<WifiConfiguration> valuesForCurrentUser() {
return mPerIDForCurrentUser.values();
}
}
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