[Wi-Fi] Apply WifiTrackerLib objects in WifiDppQrCodeScannerFragment

Bug: 152571756
Bug: 145100890
Test: manual
      Scan QR code and check connection.
Change-Id: I21b9fadc83ab185df5710f4bf777afec3dfbbc8d

src/com/android/settings/wifi/dpp/WifiDppQrCodeScannerFragment.java

@@ -16,6 +16,8 @@
 
 package com.android.settings.wifi.dpp;
 
+import static android.net.wifi.WifiInfo.sanitizeSsid;
+
 import android.app.Activity;
 import android.app.settings.SettingsEnums;
 import android.content.Context;
@@ -23,12 +25,19 @@ import android.content.Intent;
 import android.graphics.Matrix;
 import android.graphics.Rect;
 import android.graphics.SurfaceTexture;
+import android.net.ConnectivityManager;
+import android.net.NetworkScoreManager;
 import android.net.wifi.EasyConnectStatusCallback;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiManager;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Looper;
 import android.os.Message;
+import android.os.Process;
+import android.os.SimpleClock;
+import android.os.SystemClock;
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.Size;
@@ -51,18 +60,17 @@ import com.android.settings.R;
 import com.android.settings.wifi.WifiDialogActivity;
 import com.android.settings.wifi.qrcode.QrCamera;
 import com.android.settings.wifi.qrcode.QrDecorateView;
+import com.android.wifitrackerlib.WifiEntry;
+import com.android.wifitrackerlib.WifiPickerTracker;
 
-import com.android.settingslib.wifi.AccessPoint;
+import java.time.Clock;
-import com.android.settingslib.wifi.WifiTracker;
+import java.time.ZoneOffset;
-import com.android.settingslib.wifi.WifiTrackerFactory;
-
 import java.util.List;
 
 public class WifiDppQrCodeScannerFragment extends WifiDppQrCodeBaseFragment implements
         SurfaceTextureListener,
         QrCamera.ScannerCallback,
-        WifiManager.ActionListener,
+        WifiManager.ActionListener {
-        WifiTracker.WifiListener {
     private static final String TAG = "WifiDppQrCodeScanner";
 
     /** Message sent to hide error message */
@@ -87,6 +95,11 @@ public class WifiDppQrCodeScannerFragment extends WifiDppQrCodeBaseFragment impl
 
     private static final int ARG_RESTART_CAMERA = 1;
 
+    // Max age of tracked WifiEntries.
+    private static final long MAX_SCAN_AGE_MILLIS = 15_000;
+    // Interval between initiating WifiPickerTracker scans.
+    private static final long SCAN_INTERVAL_MILLIS = 10_000;
+
     private QrCamera mCamera;
     private TextureView mTextureView;
     private QrDecorateView mDecorateView;
@@ -106,7 +119,8 @@ public class WifiDppQrCodeScannerFragment extends WifiDppQrCodeBaseFragment impl
 
     private int mLatestStatusCode = WifiDppUtils.EASY_CONNECT_EVENT_FAILURE_NONE;
 
-    private WifiTracker mWifiTracker;
+    private WifiPickerTracker mWifiPickerTracker;
+    private HandlerThread mWorkerThread;
 
     private final Handler mHandler = new Handler() {
         @Override
@@ -219,11 +233,27 @@ public class WifiDppQrCodeScannerFragment extends WifiDppQrCodeBaseFragment impl
     }
 
     private boolean isReachableWifiNetwork(WifiConfiguration wifiConfiguration) {
-        final List<AccessPoint> scannedAccessPoints = mWifiTracker.getAccessPoints();
+        final List<WifiEntry> wifiEntries = mWifiPickerTracker.getWifiEntries();
+        final WifiEntry connectedWifiEntry = mWifiPickerTracker.getConnectedWifiEntry();
+        if (connectedWifiEntry != null) {
+            // Add connected WifiEntry to prevent fail toast to users when it's connected.
+            wifiEntries.add(connectedWifiEntry);
+        }
 
-        for (AccessPoint scannedAccessPoint : scannedAccessPoints) {
+        for (WifiEntry wifiEntry : wifiEntries) {
-            if (scannedAccessPoint.matches(wifiConfiguration) &&
+            if (!TextUtils.equals(wifiEntry.getSsid(), sanitizeSsid(wifiConfiguration.SSID))) {
-                    scannedAccessPoint.isReachable()) {
+                continue;
+            }
+            final int security =
+                    WifiDppUtils.getSecurityTypeFromWifiConfiguration(wifiConfiguration);
+            if (security == wifiEntry.getSecurity()) {
+                return true;
+            }
+
+            // Default security type of PSK/SAE transition mode WifiEntry is SECURITY_PSK and
+            // there is no way to know if a WifiEntry is of transition mode. Give it a chance.
+            if (security == WifiEntry.SECURITY_SAE
+                    && wifiEntry.getSecurity() == WifiEntry.SECURITY_PSK) {
                 return true;
             }
         }
@@ -323,8 +353,27 @@ public class WifiDppQrCodeScannerFragment extends WifiDppQrCodeBaseFragment impl
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
-        mWifiTracker = WifiTrackerFactory.create(getActivity(), /* wifiListener */ this,
+        mWorkerThread = new HandlerThread(
-                getSettingsLifecycle(), /* includeSaved */ false, /* includeScans */ true);
+                TAG + "{" + Integer.toHexString(System.identityHashCode(this)) + "}",
+                Process.THREAD_PRIORITY_BACKGROUND);
+        mWorkerThread.start();
+        final Clock elapsedRealtimeClock = new SimpleClock(ZoneOffset.UTC) {
+            @Override
+            public long millis() {
+                return SystemClock.elapsedRealtime();
+            }
+        };
+        final Context context = getContext();
+        mWifiPickerTracker = new WifiPickerTracker(getSettingsLifecycle(), context,
+                context.getSystemService(WifiManager.class),
+                context.getSystemService(ConnectivityManager.class),
+                context.getSystemService(NetworkScoreManager.class),
+                new Handler(Looper.getMainLooper()),
+                mWorkerThread.getThreadHandler(),
+                elapsedRealtimeClock,
+                MAX_SCAN_AGE_MILLIS,
+                SCAN_INTERVAL_MILLIS,
+                null /* listener */);
 
         // setTitle for TalkBack
         if (mIsConfiguratorMode) {
@@ -348,6 +397,13 @@ public class WifiDppQrCodeScannerFragment extends WifiDppQrCodeBaseFragment impl
         super.onDetach();
     }
 
+    @Override
+    public void onDestroyView() {
+        mWorkerThread.quit();
+
+        super.onDestroyView();
+    }
+
     @Override
     public final View onCreateView(LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {
@@ -690,27 +746,6 @@ public class WifiDppQrCodeScannerFragment extends WifiDppQrCodeBaseFragment impl
         }
     }
 
-    /** Called when the state of Wifi has changed. */
-    @Override
-    public void onWifiStateChanged(int state) {
-        // Do nothing.
-    }
-
-    /** Called when the connection state of wifi has changed. */
-    @Override
-    public void onConnectedChanged() {
-        // Do nothing.
-    }
-
-    /**
-     * Called to indicate the list of AccessPoints has been updated and
-     * getAccessPoints should be called to get the latest information.
-     */
-    @Override
-    public void onAccessPointsChanged() {
-        // Do nothing.
-    }
-
     @VisibleForTesting
     protected boolean isDecodeTaskAlive() {
         return mCamera != null && mCamera.isDecodeTaskAlive();

src/com/android/settings/wifi/dpp/WifiDppUtils.java

@@ -534,4 +534,25 @@ public class WifiDppUtils {
                 VIBRATE_DURATION_QR_CODE_RECOGNITION.toMillis(),
                 VibrationEffect.DEFAULT_AMPLITUDE));
     }
+
+    @WifiEntry.Security
+    static int getSecurityTypeFromWifiConfiguration(WifiConfiguration config) {
+        if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.SAE)) {
+            return WifiEntry.SECURITY_SAE;
+        }
+        if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK)) {
+            return WifiEntry.SECURITY_PSK;
+        }
+        if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.SUITE_B_192)) {
+            return WifiEntry.SECURITY_EAP_SUITE_B;
+        }
+        if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_EAP)
+                || config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.IEEE8021X)) {
+            return WifiEntry.SECURITY_EAP;
+        }
+        if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.OWE)) {
+            return WifiEntry.SECURITY_OWE;
+        }
+        return (config.wepKeys[0] != null) ? WifiEntry.SECURITY_WEP : WifiEntry.SECURITY_NONE;
+    }
 }