| /* |
| * 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.settingslib.wifi; |
| |
| import android.app.AppGlobals; |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageManager; |
| import android.net.ConnectivityManager; |
| import android.net.Network; |
| import android.net.NetworkCapabilities; |
| import android.net.NetworkInfo; |
| import android.net.NetworkInfo.DetailedState; |
| import android.net.NetworkInfo.State; |
| import android.net.wifi.IWifiManager; |
| import android.net.wifi.ScanResult; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiConfiguration.KeyMgmt; |
| import android.net.wifi.WifiInfo; |
| import android.net.wifi.WifiManager; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.support.annotation.NonNull; |
| import android.text.Spannable; |
| import android.text.SpannableString; |
| import android.text.TextUtils; |
| import android.text.style.TtsSpan; |
| import android.util.Log; |
| import android.util.LruCache; |
| |
| import com.android.settingslib.R; |
| |
| import java.util.ArrayList; |
| import java.util.Map; |
| |
| |
| public class AccessPoint implements Comparable<AccessPoint> { |
| static final String TAG = "SettingsLib.AccessPoint"; |
| |
| /** |
| * Lower bound on the 2.4 GHz (802.11b/g/n) WLAN channels |
| */ |
| public static final int LOWER_FREQ_24GHZ = 2400; |
| |
| /** |
| * Upper bound on the 2.4 GHz (802.11b/g/n) WLAN channels |
| */ |
| public static final int HIGHER_FREQ_24GHZ = 2500; |
| |
| /** |
| * Lower bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels |
| */ |
| public static final int LOWER_FREQ_5GHZ = 4900; |
| |
| /** |
| * Upper bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels |
| */ |
| public static final int HIGHER_FREQ_5GHZ = 5900; |
| |
| |
| /** |
| * Experimental: we should be able to show the user the list of BSSIDs and bands |
| * for that SSID. |
| * For now this data is used only with Verbose Logging so as to show the band and number |
| * of BSSIDs on which that network is seen. |
| */ |
| public LruCache<String, ScanResult> mScanResultCache = new LruCache<String, ScanResult>(32); |
| |
| private static final String KEY_NETWORKINFO = "key_networkinfo"; |
| private static final String KEY_WIFIINFO = "key_wifiinfo"; |
| private static final String KEY_SCANRESULT = "key_scanresult"; |
| private static final String KEY_SSID = "key_ssid"; |
| private static final String KEY_SECURITY = "key_security"; |
| private static final String KEY_PSKTYPE = "key_psktype"; |
| private static final String KEY_SCANRESULTCACHE = "key_scanresultcache"; |
| private static final String KEY_CONFIG = "key_config"; |
| |
| /** |
| * These values are matched in string arrays -- changes must be kept in sync |
| */ |
| public static final int SECURITY_NONE = 0; |
| public static final int SECURITY_WEP = 1; |
| public static final int SECURITY_PSK = 2; |
| public static final int SECURITY_EAP = 3; |
| |
| private static final int PSK_UNKNOWN = 0; |
| private static final int PSK_WPA = 1; |
| private static final int PSK_WPA2 = 2; |
| private static final int PSK_WPA_WPA2 = 3; |
| |
| public static final int SIGNAL_LEVELS = 4; |
| |
| private final Context mContext; |
| |
| private String ssid; |
| private String bssid; |
| private int security; |
| private int networkId = WifiConfiguration.INVALID_NETWORK_ID; |
| |
| private int pskType = PSK_UNKNOWN; |
| |
| private WifiConfiguration mConfig; |
| |
| private int mRssi = Integer.MAX_VALUE; |
| private long mSeen = 0; |
| |
| private WifiInfo mInfo; |
| private NetworkInfo mNetworkInfo; |
| private AccessPointListener mAccessPointListener; |
| |
| private Object mTag; |
| |
| public AccessPoint(Context context, Bundle savedState) { |
| mContext = context; |
| mConfig = savedState.getParcelable(KEY_CONFIG); |
| if (mConfig != null) { |
| loadConfig(mConfig); |
| } |
| if (savedState.containsKey(KEY_SSID)) { |
| ssid = savedState.getString(KEY_SSID); |
| } |
| if (savedState.containsKey(KEY_SECURITY)) { |
| security = savedState.getInt(KEY_SECURITY); |
| } |
| if (savedState.containsKey(KEY_PSKTYPE)) { |
| pskType = savedState.getInt(KEY_PSKTYPE); |
| } |
| mInfo = (WifiInfo) savedState.getParcelable(KEY_WIFIINFO); |
| if (savedState.containsKey(KEY_NETWORKINFO)) { |
| mNetworkInfo = savedState.getParcelable(KEY_NETWORKINFO); |
| } |
| if (savedState.containsKey(KEY_SCANRESULTCACHE)) { |
| ArrayList<ScanResult> scanResultArrayList = |
| savedState.getParcelableArrayList(KEY_SCANRESULTCACHE); |
| mScanResultCache.evictAll(); |
| for (ScanResult result : scanResultArrayList) { |
| mScanResultCache.put(result.BSSID, result); |
| } |
| } |
| update(mConfig, mInfo, mNetworkInfo); |
| mRssi = getRssi(); |
| mSeen = getSeen(); |
| } |
| |
| AccessPoint(Context context, ScanResult result) { |
| mContext = context; |
| initWithScanResult(result); |
| } |
| |
| AccessPoint(Context context, WifiConfiguration config) { |
| mContext = context; |
| loadConfig(config); |
| } |
| |
| @Override |
| public int compareTo(@NonNull AccessPoint other) { |
| // Active one goes first. |
| if (isActive() && !other.isActive()) return -1; |
| if (!isActive() && other.isActive()) return 1; |
| |
| // Reachable one goes before unreachable one. |
| if (mRssi != Integer.MAX_VALUE && other.mRssi == Integer.MAX_VALUE) return -1; |
| if (mRssi == Integer.MAX_VALUE && other.mRssi != Integer.MAX_VALUE) return 1; |
| |
| // Configured one goes before unconfigured one. |
| if (networkId != WifiConfiguration.INVALID_NETWORK_ID |
| && other.networkId == WifiConfiguration.INVALID_NETWORK_ID) return -1; |
| if (networkId == WifiConfiguration.INVALID_NETWORK_ID |
| && other.networkId != WifiConfiguration.INVALID_NETWORK_ID) return 1; |
| |
| // Sort by signal strength, bucketed by level |
| int difference = WifiManager.calculateSignalLevel(other.mRssi, SIGNAL_LEVELS) |
| - WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS); |
| if (difference != 0) { |
| return difference; |
| } |
| // Sort by ssid. |
| return ssid.compareToIgnoreCase(other.ssid); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (!(other instanceof AccessPoint)) return false; |
| return (this.compareTo((AccessPoint) other) == 0); |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = 0; |
| if (mInfo != null) result += 13 * mInfo.hashCode(); |
| result += 19 * mRssi; |
| result += 23 * networkId; |
| result += 29 * ssid.hashCode(); |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder builder = new StringBuilder().append("AccessPoint(") |
| .append(ssid); |
| if (isSaved()) { |
| builder.append(',').append("saved"); |
| } |
| if (isActive()) { |
| builder.append(',').append("active"); |
| } |
| if (isEphemeral()) { |
| builder.append(',').append("ephemeral"); |
| } |
| if (isConnectable()) { |
| builder.append(',').append("connectable"); |
| } |
| if (security != SECURITY_NONE) { |
| builder.append(',').append(securityToString(security, pskType)); |
| } |
| return builder.append(')').toString(); |
| } |
| |
| public boolean matches(ScanResult result) { |
| return ssid.equals(result.SSID) && security == getSecurity(result); |
| } |
| |
| public boolean matches(WifiConfiguration config) { |
| if (config.isPasspoint() && mConfig != null && mConfig.isPasspoint()) { |
| return config.FQDN.equals(mConfig.providerFriendlyName); |
| } else { |
| return ssid.equals(removeDoubleQuotes(config.SSID)) |
| && security == getSecurity(config) |
| && (mConfig == null || mConfig.shared == config.shared); |
| } |
| } |
| |
| public WifiConfiguration getConfig() { |
| return mConfig; |
| } |
| |
| public void clearConfig() { |
| mConfig = null; |
| networkId = WifiConfiguration.INVALID_NETWORK_ID; |
| } |
| |
| public WifiInfo getInfo() { |
| return mInfo; |
| } |
| |
| public int getLevel() { |
| if (mRssi == Integer.MAX_VALUE) { |
| return -1; |
| } |
| return WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS); |
| } |
| |
| public int getRssi() { |
| int rssi = Integer.MIN_VALUE; |
| for (ScanResult result : mScanResultCache.snapshot().values()) { |
| if (result.level > rssi) { |
| rssi = result.level; |
| } |
| } |
| |
| return rssi; |
| } |
| |
| public long getSeen() { |
| long seen = 0; |
| for (ScanResult result : mScanResultCache.snapshot().values()) { |
| if (result.timestamp > seen) { |
| seen = result.timestamp; |
| } |
| } |
| |
| return seen; |
| } |
| |
| public NetworkInfo getNetworkInfo() { |
| return mNetworkInfo; |
| } |
| |
| public int getSecurity() { |
| return security; |
| } |
| |
| public String getSecurityString(boolean concise) { |
| Context context = mContext; |
| if (mConfig != null && mConfig.isPasspoint()) { |
| return concise ? context.getString(R.string.wifi_security_short_eap) : |
| context.getString(R.string.wifi_security_eap); |
| } |
| switch(security) { |
| case SECURITY_EAP: |
| return concise ? context.getString(R.string.wifi_security_short_eap) : |
| context.getString(R.string.wifi_security_eap); |
| case SECURITY_PSK: |
| switch (pskType) { |
| case PSK_WPA: |
| return concise ? context.getString(R.string.wifi_security_short_wpa) : |
| context.getString(R.string.wifi_security_wpa); |
| case PSK_WPA2: |
| return concise ? context.getString(R.string.wifi_security_short_wpa2) : |
| context.getString(R.string.wifi_security_wpa2); |
| case PSK_WPA_WPA2: |
| return concise ? context.getString(R.string.wifi_security_short_wpa_wpa2) : |
| context.getString(R.string.wifi_security_wpa_wpa2); |
| case PSK_UNKNOWN: |
| default: |
| return concise ? context.getString(R.string.wifi_security_short_psk_generic) |
| : context.getString(R.string.wifi_security_psk_generic); |
| } |
| case SECURITY_WEP: |
| return concise ? context.getString(R.string.wifi_security_short_wep) : |
| context.getString(R.string.wifi_security_wep); |
| case SECURITY_NONE: |
| default: |
| return concise ? "" : context.getString(R.string.wifi_security_none); |
| } |
| } |
| |
| public String getSsidStr() { |
| return ssid; |
| } |
| |
| public String getBssid() { |
| return bssid; |
| } |
| |
| public CharSequence getSsid() { |
| SpannableString str = new SpannableString(ssid); |
| str.setSpan(new TtsSpan.VerbatimBuilder(ssid).build(), 0, ssid.length(), |
| Spannable.SPAN_INCLUSIVE_INCLUSIVE); |
| return str; |
| } |
| |
| public String getConfigName() { |
| if (mConfig != null && mConfig.isPasspoint()) { |
| return mConfig.providerFriendlyName; |
| } else { |
| return ssid; |
| } |
| } |
| |
| public DetailedState getDetailedState() { |
| return mNetworkInfo != null ? mNetworkInfo.getDetailedState() : null; |
| } |
| |
| public String getSavedNetworkSummary() { |
| WifiConfiguration config = mConfig; |
| if (config != null) { |
| PackageManager pm = mContext.getPackageManager(); |
| String systemName = pm.getNameForUid(android.os.Process.SYSTEM_UID); |
| int userId = UserHandle.getUserId(config.creatorUid); |
| ApplicationInfo appInfo = null; |
| if (config.creatorName != null && config.creatorName.equals(systemName)) { |
| appInfo = mContext.getApplicationInfo(); |
| } else { |
| try { |
| IPackageManager ipm = AppGlobals.getPackageManager(); |
| appInfo = ipm.getApplicationInfo(config.creatorName, 0 /* flags */, userId); |
| } catch (RemoteException rex) { |
| } |
| } |
| if (appInfo != null && |
| !appInfo.packageName.equals(mContext.getString(R.string.settings_package)) && |
| !appInfo.packageName.equals( |
| mContext.getString(R.string.certinstaller_package))) { |
| return mContext.getString(R.string.saved_network, appInfo.loadLabel(pm)); |
| } |
| } |
| return ""; |
| } |
| |
| public String getSummary() { |
| return getSettingsSummary(mConfig); |
| } |
| |
| public String getSettingsSummary() { |
| return getSettingsSummary(mConfig); |
| } |
| |
| private String getSettingsSummary(WifiConfiguration config) { |
| // Update to new summary |
| StringBuilder summary = new StringBuilder(); |
| |
| if (isActive() && config != null && config.isPasspoint()) { |
| // This is the active connection on passpoint |
| summary.append(getSummary(mContext, getDetailedState(), |
| false, config.providerFriendlyName)); |
| } else if (isActive()) { |
| // This is the active connection on non-passpoint network |
| summary.append(getSummary(mContext, getDetailedState(), |
| mInfo != null && mInfo.isEphemeral())); |
| } else if (config != null && config.isPasspoint()) { |
| String format = mContext.getString(R.string.available_via_passpoint); |
| summary.append(String.format(format, config.providerFriendlyName)); |
| } else if (config != null && config.hasNoInternetAccess()) { |
| summary.append(mContext.getString(R.string.wifi_no_internet)); |
| } else if (config != null && !config.getNetworkSelectionStatus().isNetworkEnabled()) { |
| WifiConfiguration.NetworkSelectionStatus networkStatus = |
| config.getNetworkSelectionStatus(); |
| switch (networkStatus.getNetworkSelectionDisableReason()) { |
| case WifiConfiguration.NetworkSelectionStatus.DISABLED_AUTHENTICATION_FAILURE: |
| summary.append(mContext.getString(R.string.wifi_disabled_password_failure)); |
| break; |
| case WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE: |
| case WifiConfiguration.NetworkSelectionStatus.DISABLED_DNS_FAILURE: |
| summary.append(mContext.getString(R.string.wifi_disabled_network_failure)); |
| break; |
| case WifiConfiguration.NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION: |
| summary.append(mContext.getString(R.string.wifi_disabled_generic)); |
| break; |
| } |
| } else if (mRssi == Integer.MAX_VALUE) { // Wifi out of range |
| summary.append(mContext.getString(R.string.wifi_not_in_range)); |
| } else { // In range, not disabled. |
| if (config != null) { // Is saved network |
| summary.append(mContext.getString(R.string.wifi_remembered)); |
| } |
| } |
| |
| if (WifiTracker.sVerboseLogging > 0) { |
| // Add RSSI/band information for this config, what was seen up to 6 seconds ago |
| // verbose WiFi Logging is only turned on thru developers settings |
| if (mInfo != null && mNetworkInfo != null) { // This is the active connection |
| summary.append(" f=" + Integer.toString(mInfo.getFrequency())); |
| } |
| summary.append(" " + getVisibilityStatus()); |
| if (config != null && !config.getNetworkSelectionStatus().isNetworkEnabled()) { |
| summary.append(" (" + config.getNetworkSelectionStatus().getNetworkStatusString()); |
| if (config.getNetworkSelectionStatus().getDisableTime() > 0) { |
| long now = System.currentTimeMillis(); |
| long diff = (now - config.getNetworkSelectionStatus().getDisableTime()) / 1000; |
| long sec = diff%60; //seconds |
| long min = (diff/60)%60; //minutes |
| long hour = (min/60)%60; //hours |
| summary.append(", "); |
| if (hour > 0) summary.append(Long.toString(hour) + "h "); |
| summary.append( Long.toString(min) + "m "); |
| summary.append( Long.toString(sec) + "s "); |
| } |
| summary.append(")"); |
| } |
| |
| if (config != null) { |
| WifiConfiguration.NetworkSelectionStatus networkStatus = |
| config.getNetworkSelectionStatus(); |
| for (int index = WifiConfiguration.NetworkSelectionStatus.NETWORK_SELECTION_ENABLE; |
| index < WifiConfiguration.NetworkSelectionStatus |
| .NETWORK_SELECTION_DISABLED_MAX; index++) { |
| if (networkStatus.getDisableReasonCounter(index) != 0) { |
| summary.append(" " + WifiConfiguration.NetworkSelectionStatus |
| .getNetworkDisableReasonString(index) + "=" |
| + networkStatus.getDisableReasonCounter(index)); |
| } |
| } |
| } |
| } |
| return summary.toString(); |
| } |
| |
| /** |
| * Returns the visibility status of the WifiConfiguration. |
| * |
| * @return autojoin debugging information |
| * TODO: use a string formatter |
| * ["rssi 5Ghz", "num results on 5GHz" / "rssi 5Ghz", "num results on 5GHz"] |
| * For instance [-40,5/-30,2] |
| */ |
| private String getVisibilityStatus() { |
| StringBuilder visibility = new StringBuilder(); |
| StringBuilder scans24GHz = null; |
| StringBuilder scans5GHz = null; |
| String bssid = null; |
| |
| long now = System.currentTimeMillis(); |
| |
| if (mInfo != null) { |
| bssid = mInfo.getBSSID(); |
| if (bssid != null) { |
| visibility.append(" ").append(bssid); |
| } |
| visibility.append(" rssi=").append(mInfo.getRssi()); |
| visibility.append(" "); |
| visibility.append(" score=").append(mInfo.score); |
| visibility.append(String.format(" tx=%.1f,", mInfo.txSuccessRate)); |
| visibility.append(String.format("%.1f,", mInfo.txRetriesRate)); |
| visibility.append(String.format("%.1f ", mInfo.txBadRate)); |
| visibility.append(String.format("rx=%.1f", mInfo.rxSuccessRate)); |
| } |
| |
| int rssi5 = WifiConfiguration.INVALID_RSSI; |
| int rssi24 = WifiConfiguration.INVALID_RSSI; |
| int num5 = 0; |
| int num24 = 0; |
| int numBlackListed = 0; |
| int n24 = 0; // Number scan results we included in the string |
| int n5 = 0; // Number scan results we included in the string |
| Map<String, ScanResult> list = mScanResultCache.snapshot(); |
| // TODO: sort list by RSSI or age |
| for (ScanResult result : list.values()) { |
| |
| if (result.frequency >= LOWER_FREQ_5GHZ |
| && result.frequency <= HIGHER_FREQ_5GHZ) { |
| // Strictly speaking: [4915, 5825] |
| // number of known BSSID on 5GHz band |
| num5 = num5 + 1; |
| } else if (result.frequency >= LOWER_FREQ_24GHZ |
| && result.frequency <= HIGHER_FREQ_24GHZ) { |
| // Strictly speaking: [2412, 2482] |
| // number of known BSSID on 2.4Ghz band |
| num24 = num24 + 1; |
| } |
| |
| |
| if (result.frequency >= LOWER_FREQ_5GHZ |
| && result.frequency <= HIGHER_FREQ_5GHZ) { |
| if (result.level > rssi5) { |
| rssi5 = result.level; |
| } |
| if (n5 < 4) { |
| if (scans5GHz == null) scans5GHz = new StringBuilder(); |
| scans5GHz.append(" \n{").append(result.BSSID); |
| if (bssid != null && result.BSSID.equals(bssid)) scans5GHz.append("*"); |
| scans5GHz.append("=").append(result.frequency); |
| scans5GHz.append(",").append(result.level); |
| scans5GHz.append("}"); |
| n5++; |
| } |
| } else if (result.frequency >= LOWER_FREQ_24GHZ |
| && result.frequency <= HIGHER_FREQ_24GHZ) { |
| if (result.level > rssi24) { |
| rssi24 = result.level; |
| } |
| if (n24 < 4) { |
| if (scans24GHz == null) scans24GHz = new StringBuilder(); |
| scans24GHz.append(" \n{").append(result.BSSID); |
| if (bssid != null && result.BSSID.equals(bssid)) scans24GHz.append("*"); |
| scans24GHz.append("=").append(result.frequency); |
| scans24GHz.append(",").append(result.level); |
| scans24GHz.append("}"); |
| n24++; |
| } |
| } |
| } |
| visibility.append(" ["); |
| if (num24 > 0) { |
| visibility.append("(").append(num24).append(")"); |
| if (n24 <= 4) { |
| if (scans24GHz != null) { |
| visibility.append(scans24GHz.toString()); |
| } |
| } else { |
| visibility.append("max=").append(rssi24); |
| if (scans24GHz != null) { |
| visibility.append(",").append(scans24GHz.toString()); |
| } |
| } |
| } |
| visibility.append(";"); |
| if (num5 > 0) { |
| visibility.append("(").append(num5).append(")"); |
| if (n5 <= 4) { |
| if (scans5GHz != null) { |
| visibility.append(scans5GHz.toString()); |
| } |
| } else { |
| visibility.append("max=").append(rssi5); |
| if (scans5GHz != null) { |
| visibility.append(",").append(scans5GHz.toString()); |
| } |
| } |
| } |
| if (numBlackListed > 0) |
| visibility.append("!").append(numBlackListed); |
| visibility.append("]"); |
| |
| return visibility.toString(); |
| } |
| |
| /** |
| * Return whether this is the active connection. |
| * For ephemeral connections (networkId is invalid), this returns false if the network is |
| * disconnected. |
| */ |
| public boolean isActive() { |
| return mNetworkInfo != null && |
| (networkId != WifiConfiguration.INVALID_NETWORK_ID || |
| mNetworkInfo.getState() != State.DISCONNECTED); |
| } |
| |
| public boolean isConnectable() { |
| return getLevel() != -1 && getDetailedState() == null; |
| } |
| |
| public boolean isEphemeral() { |
| return mInfo != null && mInfo.isEphemeral() && |
| mNetworkInfo != null && mNetworkInfo.getState() != State.DISCONNECTED; |
| } |
| |
| public boolean isPasspoint() { |
| return mConfig != null && mConfig.isPasspoint(); |
| } |
| |
| /** |
| * Return whether the given {@link WifiInfo} is for this access point. |
| * If the current AP does not have a network Id then the config is used to |
| * match based on SSID and security. |
| */ |
| private boolean isInfoForThisAccessPoint(WifiConfiguration config, WifiInfo info) { |
| if (isPasspoint() == false && networkId != WifiConfiguration.INVALID_NETWORK_ID) { |
| return networkId == info.getNetworkId(); |
| } else if (config != null) { |
| return matches(config); |
| } |
| else { |
| // Might be an ephemeral connection with no WifiConfiguration. Try matching on SSID. |
| // (Note that we only do this if the WifiConfiguration explicitly equals INVALID). |
| // TODO: Handle hex string SSIDs. |
| return ssid.equals(removeDoubleQuotes(info.getSSID())); |
| } |
| } |
| |
| public boolean isSaved() { |
| return networkId != WifiConfiguration.INVALID_NETWORK_ID; |
| } |
| |
| public Object getTag() { |
| return mTag; |
| } |
| |
| public void setTag(Object tag) { |
| mTag = tag; |
| } |
| |
| /** |
| * Generate and save a default wifiConfiguration with common values. |
| * Can only be called for unsecured networks. |
| */ |
| public void generateOpenNetworkConfig() { |
| if (security != SECURITY_NONE) |
| throw new IllegalStateException(); |
| if (mConfig != null) |
| return; |
| mConfig = new WifiConfiguration(); |
| mConfig.SSID = AccessPoint.convertToQuotedString(ssid); |
| mConfig.allowedKeyManagement.set(KeyMgmt.NONE); |
| } |
| |
| void loadConfig(WifiConfiguration config) { |
| if (config.isPasspoint()) |
| ssid = config.providerFriendlyName; |
| else |
| ssid = (config.SSID == null ? "" : removeDoubleQuotes(config.SSID)); |
| |
| bssid = config.BSSID; |
| security = getSecurity(config); |
| networkId = config.networkId; |
| mConfig = config; |
| } |
| |
| private void initWithScanResult(ScanResult result) { |
| ssid = result.SSID; |
| bssid = result.BSSID; |
| security = getSecurity(result); |
| if (security == SECURITY_PSK) |
| pskType = getPskType(result); |
| mRssi = result.level; |
| mSeen = result.timestamp; |
| } |
| |
| public void saveWifiState(Bundle savedState) { |
| if (ssid != null) savedState.putString(KEY_SSID, getSsidStr()); |
| savedState.putInt(KEY_SECURITY, security); |
| savedState.putInt(KEY_PSKTYPE, pskType); |
| if (mConfig != null) savedState.putParcelable(KEY_CONFIG, mConfig); |
| savedState.putParcelable(KEY_WIFIINFO, mInfo); |
| savedState.putParcelableArrayList(KEY_SCANRESULTCACHE, |
| new ArrayList<ScanResult>(mScanResultCache.snapshot().values())); |
| if (mNetworkInfo != null) { |
| savedState.putParcelable(KEY_NETWORKINFO, mNetworkInfo); |
| } |
| } |
| |
| public void setListener(AccessPointListener listener) { |
| mAccessPointListener = listener; |
| } |
| |
| boolean update(ScanResult result) { |
| if (matches(result)) { |
| /* Update the LRU timestamp, if BSSID exists */ |
| mScanResultCache.get(result.BSSID); |
| |
| /* Add or update the scan result for the BSSID */ |
| mScanResultCache.put(result.BSSID, result); |
| |
| int oldLevel = getLevel(); |
| int oldRssi = getRssi(); |
| mSeen = getSeen(); |
| mRssi = (getRssi() + oldRssi)/2; |
| int newLevel = getLevel(); |
| |
| if (newLevel > 0 && newLevel != oldLevel && mAccessPointListener != null) { |
| mAccessPointListener.onLevelChanged(this); |
| } |
| // This flag only comes from scans, is not easily saved in config |
| if (security == SECURITY_PSK) { |
| pskType = getPskType(result); |
| } |
| |
| if (mAccessPointListener != null) { |
| mAccessPointListener.onAccessPointChanged(this); |
| } |
| |
| return true; |
| } |
| return false; |
| } |
| |
| boolean update(WifiConfiguration config, WifiInfo info, NetworkInfo networkInfo) { |
| boolean reorder = false; |
| if (info != null && isInfoForThisAccessPoint(config, info)) { |
| reorder = (mInfo == null); |
| mRssi = info.getRssi(); |
| mInfo = info; |
| mNetworkInfo = networkInfo; |
| if (mAccessPointListener != null) { |
| mAccessPointListener.onAccessPointChanged(this); |
| } |
| } else if (mInfo != null) { |
| reorder = true; |
| mInfo = null; |
| mNetworkInfo = null; |
| if (mAccessPointListener != null) { |
| mAccessPointListener.onAccessPointChanged(this); |
| } |
| } |
| return reorder; |
| } |
| |
| void update(WifiConfiguration config) { |
| mConfig = config; |
| networkId = config.networkId; |
| if (mAccessPointListener != null) { |
| mAccessPointListener.onAccessPointChanged(this); |
| } |
| } |
| |
| void setRssi(int rssi) { |
| mRssi = rssi; |
| } |
| |
| public static String getSummary(Context context, String ssid, DetailedState state, |
| boolean isEphemeral, String passpointProvider) { |
| if (state == DetailedState.CONNECTED && ssid == null) { |
| if (TextUtils.isEmpty(passpointProvider) == false) { |
| // Special case for connected + passpoint networks. |
| String format = context.getString(R.string.connected_via_passpoint); |
| return String.format(format, passpointProvider); |
| } else if (isEphemeral) { |
| // Special case for connected + ephemeral networks. |
| return context.getString(R.string.connected_via_wfa); |
| } |
| } |
| |
| // Case when there is wifi connected without internet connectivity. |
| final ConnectivityManager cm = (ConnectivityManager) |
| context.getSystemService(Context.CONNECTIVITY_SERVICE); |
| if (state == DetailedState.CONNECTED) { |
| IWifiManager wifiManager = IWifiManager.Stub.asInterface( |
| ServiceManager.getService(Context.WIFI_SERVICE)); |
| Network nw; |
| |
| try { |
| nw = wifiManager.getCurrentNetwork(); |
| } catch (RemoteException e) { |
| nw = null; |
| } |
| NetworkCapabilities nc = cm.getNetworkCapabilities(nw); |
| if (nc != null && !nc.hasCapability(nc.NET_CAPABILITY_VALIDATED)) { |
| return context.getString(R.string.wifi_connected_no_internet); |
| } |
| } |
| |
| String[] formats = context.getResources().getStringArray((ssid == null) |
| ? R.array.wifi_status : R.array.wifi_status_with_ssid); |
| int index = state.ordinal(); |
| |
| if (index >= formats.length || formats[index].length() == 0) { |
| return ""; |
| } |
| return String.format(formats[index], ssid); |
| } |
| |
| public static String getSummary(Context context, DetailedState state, boolean isEphemeral) { |
| return getSummary(context, null, state, isEphemeral, null); |
| } |
| |
| public static String getSummary(Context context, DetailedState state, boolean isEphemeral, |
| String passpointProvider) { |
| return getSummary(context, null, state, isEphemeral, passpointProvider); |
| } |
| |
| public static String convertToQuotedString(String string) { |
| return "\"" + string + "\""; |
| } |
| |
| private static int getPskType(ScanResult result) { |
| boolean wpa = result.capabilities.contains("WPA-PSK"); |
| boolean wpa2 = result.capabilities.contains("WPA2-PSK"); |
| if (wpa2 && wpa) { |
| return PSK_WPA_WPA2; |
| } else if (wpa2) { |
| return PSK_WPA2; |
| } else if (wpa) { |
| return PSK_WPA; |
| } else { |
| Log.w(TAG, "Received abnormal flag string: " + result.capabilities); |
| return PSK_UNKNOWN; |
| } |
| } |
| |
| private static int getSecurity(ScanResult result) { |
| if (result.capabilities.contains("WEP")) { |
| return SECURITY_WEP; |
| } else if (result.capabilities.contains("PSK")) { |
| return SECURITY_PSK; |
| } else if (result.capabilities.contains("EAP")) { |
| return SECURITY_EAP; |
| } |
| return SECURITY_NONE; |
| } |
| |
| static int getSecurity(WifiConfiguration config) { |
| if (config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { |
| return SECURITY_PSK; |
| } |
| if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) || |
| config.allowedKeyManagement.get(KeyMgmt.IEEE8021X)) { |
| return SECURITY_EAP; |
| } |
| return (config.wepKeys[0] != null) ? SECURITY_WEP : SECURITY_NONE; |
| } |
| |
| public static String securityToString(int security, int pskType) { |
| if (security == SECURITY_WEP) { |
| return "WEP"; |
| } else if (security == SECURITY_PSK) { |
| if (pskType == PSK_WPA) { |
| return "WPA"; |
| } else if (pskType == PSK_WPA2) { |
| return "WPA2"; |
| } else if (pskType == PSK_WPA_WPA2) { |
| return "WPA_WPA2"; |
| } |
| return "PSK"; |
| } else if (security == SECURITY_EAP) { |
| return "EAP"; |
| } |
| return "NONE"; |
| } |
| |
| static String removeDoubleQuotes(String string) { |
| if (TextUtils.isEmpty(string)) { |
| return ""; |
| } |
| int length = string.length(); |
| if ((length > 1) && (string.charAt(0) == '"') |
| && (string.charAt(length - 1) == '"')) { |
| return string.substring(1, length - 1); |
| } |
| return string; |
| } |
| |
| public interface AccessPointListener { |
| void onAccessPointChanged(AccessPoint accessPoint); |
| void onLevelChanged(AccessPoint accessPoint); |
| } |
| } |
