1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5package org.chromium.android_webview.permission;
6
7import android.net.Uri;
8import android.util.Log;
9
10import org.chromium.base.CalledByNative;
11import org.chromium.base.JNINamespace;
12import org.chromium.base.ThreadUtils;
13
14/**
15 * This class wraps permission request in Chromium side, and can only be created
16 * by native side.
17 */
18@JNINamespace("android_webview")
19public class AwPermissionRequest {
20    private static final String TAG = "AwPermissionRequest";
21
22    private Uri mOrigin;
23    private long mResources;
24    private boolean mProcessed;
25
26    // AwPermissionRequest native instance.
27    private long mNativeAwPermissionRequest;
28
29    @CalledByNative
30    private static AwPermissionRequest create(long nativeAwPermissionRequest, String url,
31            long resources) {
32        if (nativeAwPermissionRequest == 0) return null;
33        Uri origin = Uri.parse(url);
34        return new AwPermissionRequest(nativeAwPermissionRequest, origin, resources);
35    }
36
37    private AwPermissionRequest(long nativeAwPermissionRequest, Uri origin,
38            long resources) {
39        mNativeAwPermissionRequest = nativeAwPermissionRequest;
40        mOrigin = origin;
41        mResources = resources;
42    }
43
44    public Uri getOrigin() {
45        return mOrigin;
46    }
47
48    public long getResources() {
49        return mResources;
50    }
51
52    public void grant() {
53        validate();
54        if (mNativeAwPermissionRequest != 0)
55            nativeOnAccept(mNativeAwPermissionRequest, true);
56        mProcessed = true;
57    }
58
59    public void deny() {
60        validate();
61        if (mNativeAwPermissionRequest != 0)
62            nativeOnAccept(mNativeAwPermissionRequest, false);
63        mProcessed = true;
64    }
65
66    @CalledByNative
67    private void detachNativeInstance() {
68        mNativeAwPermissionRequest = 0;
69    }
70
71    @Override
72    protected void finalize() throws Throwable {
73        if (mNativeAwPermissionRequest == 0) return;
74        Log.e(TAG, "Neither grant() nor deny() has been called, "
75                + "the permission request is denied by default.");
76        deny();
77    }
78
79    private void validate() {
80        if (!ThreadUtils.runningOnUiThread())
81            throw new IllegalStateException(
82                    "Either grant() or deny() should be called on UI thread");
83
84        if (mProcessed)
85            throw new IllegalStateException("Either grant() or deny() has been already called.");
86    }
87
88    private native void nativeOnAccept(long nativeAwPermissionRequest, boolean allowed);
89}
90