1 files changed, 317 insertions, 0 deletions
diff --git a/framework/java/android/bluetooth/BluetoothPbap.java b/framework/java/android/bluetooth/BluetoothPbap.java
new file mode 100644
index 0000000000..de2db9c2ca
--- /dev/null
+++ b/framework/java/android/bluetooth/BluetoothPbap.java
@@ -0,0 +1,317 @@
+/*
+ * Copyright (C) 2008 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 android.bluetooth;
+
+import android.Manifest;
+import android.annotation.NonNull;
+import android.annotation.RequiresPermission;
+import android.annotation.SdkConstant;
+import android.annotation.SuppressLint;
+import android.annotation.SystemApi;
+import android.bluetooth.annotations.RequiresBluetoothConnectPermission;
+import android.compat.annotation.UnsupportedAppUsage;
+import android.content.AttributionSource;
+import android.content.Context;
+import android.os.Build;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Public API for controlling the Bluetooth Pbap Service. This includes
+ * Bluetooth Phone book Access profile.
+ * BluetoothPbap is a proxy object for controlling the Bluetooth Pbap
+ * Service via IPC.
+ *
+ * Creating a BluetoothPbap object will create a binding with the
+ * BluetoothPbap service. Users of this object should call close() when they
+ * are finished with the BluetoothPbap, so that this proxy object can unbind
+ * from the service.
+ *
+ * This BluetoothPbap object is not immediately bound to the
+ * BluetoothPbap service. Use the ServiceListener interface to obtain a
+ * notification when it is bound, this is especially important if you wish to
+ * immediately call methods on BluetoothPbap after construction.
+ *
+ * To get an instance of the BluetoothPbap class, you can call
+ * {@link BluetoothAdapter#getProfileProxy(Context, ServiceListener, int)} with the final param
+ * being {@link BluetoothProfile#PBAP}. The ServiceListener should be able to get the instance of
+ * BluetoothPbap in {@link android.bluetooth.BluetoothProfile.ServiceListener#onServiceConnected}.
+ *
+ * Android only supports one connected Bluetooth Pce at a time.
+ *
+ * @hide
+ */
+@SystemApi
+public class BluetoothPbap implements BluetoothProfile {
+
+    private static final String TAG = "BluetoothPbap";
+    private static final boolean DBG = false;
+
+    /**
+     * Intent used to broadcast the change in connection state of the PBAP
+     * profile.
+     *
+     * <p>This intent will have 3 extras:
+     * <ul>
+     * <li> {@link BluetoothProfile#EXTRA_STATE} - The current state of the profile. </li>
+     * <li> {@link BluetoothProfile#EXTRA_PREVIOUS_STATE}- The previous state of the profile. </li>
+     * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li>
+     * </ul>
+     * <p>{@link BluetoothProfile#EXTRA_STATE} or {@link BluetoothProfile#EXTRA_PREVIOUS_STATE}
+     *  can be any of {@link BluetoothProfile#STATE_DISCONNECTED},
+     *  {@link BluetoothProfile#STATE_CONNECTING}, {@link BluetoothProfile#STATE_CONNECTED},
+     *  {@link BluetoothProfile#STATE_DISCONNECTING}.
+     *
+     * @hide
+     */
+    @SuppressLint("ActionValue")
+    @SystemApi
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+    @SdkConstant(SdkConstant.SdkConstantType.BROADCAST_INTENT_ACTION)
+    public static final String ACTION_CONNECTION_STATE_CHANGED =
+            "android.bluetooth.pbap.profile.action.CONNECTION_STATE_CHANGED";
+
+    private final AttributionSource mAttributionSource;
+
+    /** @hide */
+    public static final int RESULT_FAILURE = 0;
+    /** @hide */
+    public static final int RESULT_SUCCESS = 1;
+    /**
+     * Connection canceled before completion.
+     *
+     * @hide
+     */
+    public static final int RESULT_CANCELED = 2;
+
+    private BluetoothAdapter mAdapter;
+    private final BluetoothProfileConnector<IBluetoothPbap> mProfileConnector =
+            new BluetoothProfileConnector(this, BluetoothProfile.PBAP, "BluetoothPbap",
+                    IBluetoothPbap.class.getName()) {
+                @Override
+                public IBluetoothPbap getServiceInterface(IBinder service) {
+                    return IBluetoothPbap.Stub.asInterface(service);
+                }
+    };
+
+    /**
+     * Create a BluetoothPbap proxy object.
+     *
+     * @hide
+     */
+    public BluetoothPbap(Context context, ServiceListener listener, BluetoothAdapter adapter) {
+        mAdapter = adapter;
+        mAttributionSource = adapter.getAttributionSource();
+        mProfileConnector.connect(context, listener);
+    }
+
+    /** @hide */
+    protected void finalize() throws Throwable {
+        try {
+            close();
+        } finally {
+            super.finalize();
+        }
+    }
+
+    /**
+     * Close the connection to the backing service.
+     * Other public functions of BluetoothPbap will return default error
+     * results once close() has been called. Multiple invocations of close()
+     * are ok.
+     *
+     * @hide
+     */
+    public synchronized void close() {
+        mProfileConnector.disconnect();
+    }
+
+    private IBluetoothPbap getService() {
+        return (IBluetoothPbap) mProfileConnector.getService();
+    }
+
+    /**
+     * {@inheritDoc}
+     *
+     * @hide
+     */
+    @Override
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(Manifest.permission.BLUETOOTH_CONNECT)
+    public List<BluetoothDevice> getConnectedDevices() {
+        log("getConnectedDevices()");
+        final IBluetoothPbap service = getService();
+        if (service == null) {
+            Log.w(TAG, "Proxy not attached to service");
+            return new ArrayList<BluetoothDevice>();
+        }
+        try {
+            return Attributable.setAttributionSource(
+                    service.getConnectedDevices(mAttributionSource), mAttributionSource);
+        } catch (RemoteException e) {
+            Log.e(TAG, e.toString());
+        }
+        return new ArrayList<BluetoothDevice>();
+    }
+
+    /**
+     * {@inheritDoc}
+     *
+     * @hide
+     */
+    @SystemApi
+    @Override
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(allOf = {
+            android.Manifest.permission.BLUETOOTH_CONNECT,
+            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
+    })
+    public @BtProfileState int getConnectionState(@NonNull BluetoothDevice device) {
+        log("getConnectionState: device=" + device);
+        try {
+            final IBluetoothPbap service = getService();
+            if (service != null && isEnabled() && isValidDevice(device)) {
+                return service.getConnectionState(device, mAttributionSource);
+            }
+            if (service == null) {
+                Log.w(TAG, "Proxy not attached to service");
+            }
+            return BluetoothProfile.STATE_DISCONNECTED;
+        } catch (RemoteException e) {
+            Log.e(TAG, e.toString());
+        }
+        return BluetoothProfile.STATE_DISCONNECTED;
+    }
+
+    /**
+     * {@inheritDoc}
+     *
+     * @hide
+     */
+    @Override
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(Manifest.permission.BLUETOOTH_CONNECT)
+    public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) {
+        log("getDevicesMatchingConnectionStates: states=" + Arrays.toString(states));
+        final IBluetoothPbap service = getService();
+        if (service == null) {
+            Log.w(TAG, "Proxy not attached to service");
+            return new ArrayList<BluetoothDevice>();
+        }
+        try {
+            return Attributable.setAttributionSource(
+                    service.getDevicesMatchingConnectionStates(states, mAttributionSource),
+                    mAttributionSource);
+        } catch (RemoteException e) {
+            Log.e(TAG, e.toString());
+        }
+        return new ArrayList<BluetoothDevice>();
+    }
+
+    /**
+     * Set connection policy of the profile and tries to disconnect it if connectionPolicy is
+     * {@link BluetoothProfile#CONNECTION_POLICY_FORBIDDEN}
+     *
+     * <p> The device should already be paired.
+     * Connection policy can be one of:
+     * {@link BluetoothProfile#CONNECTION_POLICY_ALLOWED},
+     * {@link BluetoothProfile#CONNECTION_POLICY_FORBIDDEN},
+     * {@link BluetoothProfile#CONNECTION_POLICY_UNKNOWN}
+     *
+     * @param device Paired bluetooth device
+     * @param connectionPolicy is the connection policy to set to for this profile
+     * @return true if connectionPolicy is set, false on error
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(allOf = {
+            android.Manifest.permission.BLUETOOTH_CONNECT,
+            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
+    })
+    public boolean setConnectionPolicy(@NonNull BluetoothDevice device,
+            @ConnectionPolicy int connectionPolicy) {
+        if (DBG) log("setConnectionPolicy(" + device + ", " + connectionPolicy + ")");
+        try {
+            final IBluetoothPbap service = getService();
+            if (service != null && isEnabled()
+                    && isValidDevice(device)) {
+                if (connectionPolicy != BluetoothProfile.CONNECTION_POLICY_FORBIDDEN
+                        && connectionPolicy != BluetoothProfile.CONNECTION_POLICY_ALLOWED) {
+                    return false;
+                }
+                return service.setConnectionPolicy(device, connectionPolicy, mAttributionSource);
+            }
+            if (service == null) Log.w(TAG, "Proxy not attached to service");
+            return false;
+        } catch (RemoteException e) {
+            Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable()));
+            return false;
+        }
+    }
+
+    /**
+     * Disconnects the current Pbap client (PCE). Currently this call blocks,
+     * it may soon be made asynchronous. Returns false if this proxy object is
+     * not currently connected to the Pbap service.
+     *
+     * @hide
+     */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+    public boolean disconnect(BluetoothDevice device) {
+        log("disconnect()");
+        final IBluetoothPbap service = getService();
+        if (service == null) {
+            Log.w(TAG, "Proxy not attached to service");
+            return false;
+        }
+        try {
+            service.disconnect(device, mAttributionSource);
+            return true;
+        } catch (RemoteException e) {
+            Log.e(TAG, e.toString());
+        }
+        return false;
+    }
+
+    private boolean isEnabled() {
+        if (mAdapter.getState() == BluetoothAdapter.STATE_ON) return true;
+        return false;
+    }
+
+    private boolean isValidDevice(BluetoothDevice device) {
+        if (device == null) return false;
+
+        if (BluetoothAdapter.checkBluetoothAddress(device.getAddress())) return true;
+        return false;
+    }
+
+    private static void log(String msg) {
+        if (DBG) {
+            Log.d(TAG, msg);
+        }
+    }
+}