| 1 | // Copyright (c) 2012 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 | |
| 5 | package org.chromium.android_webview; |
| 6 | |
| 7 | import android.content.SharedPreferences; |
| 8 | import android.webkit.ValueCallback; |
| 9 | |
| 10 | import org.chromium.base.ThreadUtils; |
| 11 | import org.chromium.net.GURLUtils; |
| 12 | |
| 13 | import java.util.HashSet; |
| 14 | import java.util.Set; |
| 15 | |
| 16 | /** |
| 17 | * This class is used to manage permissions for the WebView's Geolocation JavaScript API. |
| 18 | * |
| 19 | * Callbacks are posted on the UI thread. |
| 20 | */ |
| 21 | public final class AwGeolocationPermissions { |
| 22 | |
| 23 | private static final String PREF_PREFIX = |
| 24 | "AwGeolocationPermissions%"; |
| 25 | private final SharedPreferences mSharedPreferences; |
| 26 | |
| 27 | public AwGeolocationPermissions(SharedPreferences sharedPreferences) { |
| 28 | mSharedPreferences = sharedPreferences; |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Set one origin to be allowed. |
| 33 | */ |
| 34 | public void allow(String origin) { |
| 35 | String key = getOriginKey(origin); |
| 36 | if (key != null) { |
| 37 | mSharedPreferences.edit().putBoolean(key, true).apply(); |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * Set one origin to be denied. |
| 43 | */ |
| 44 | public void deny(String origin) { |
| 45 | String key = getOriginKey(origin); |
| 46 | if (key != null) { |
| 47 | mSharedPreferences.edit().putBoolean(key, false).apply(); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Clear the stored permission for a particular origin. |
| 53 | */ |
| 54 | public void clear(String origin) { |
| 55 | String key = getOriginKey(origin); |
| 56 | if (key != null) { |
| 57 | mSharedPreferences.edit().remove(key).apply(); |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Clear stored permissions for all origins. |
| 63 | */ |
| 64 | public void clearAll() { |
| 65 | SharedPreferences.Editor editor = null; |
| 66 | for (String name : mSharedPreferences.getAll().keySet()) { |
| 67 | if (name.startsWith(PREF_PREFIX)) { |
| 68 | if (editor == null) { |
| 69 | editor = mSharedPreferences.edit(); |
| 70 | } |
| 71 | editor.remove(name); |
| 72 | } |
| 73 | } |
| 74 | if (editor != null) { |
| 75 | editor.apply(); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Synchronous method to get if an origin is set to be allowed. |
| 81 | */ |
| 82 | public boolean isOriginAllowed(String origin) { |
| 83 | return mSharedPreferences.getBoolean(getOriginKey(origin), false); |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Returns true if the origin is either set to allowed or denied. |
| 88 | */ |
| 89 | public boolean hasOrigin(String origin) { |
| 90 | return mSharedPreferences.contains(getOriginKey(origin)); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Asynchronous method to get if an origin set to be allowed. |
| 95 | */ |
| 96 | public void getAllowed(String origin, final ValueCallback<Boolean> callback) { |
| 97 | final boolean finalAllowed = isOriginAllowed(origin); |
| 98 | ThreadUtils.postOnUiThread(new Runnable() { |
| 99 | @Override |
| 100 | public void run() { |
| 101 | callback.onReceiveValue(finalAllowed); |
| 102 | } |
| 103 | }); |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Async method to get the domains currently allowed or denied. |
| 108 | */ |
| 109 | public void getOrigins(final ValueCallback<Set<String>> callback) { |
| 110 | final Set<String> origins = new HashSet<String>(); |
| 111 | for (String name : mSharedPreferences.getAll().keySet()) { |
| 112 | if (name.startsWith(PREF_PREFIX)) { |
| 113 | origins.add(name.substring(PREF_PREFIX.length())); |
| 114 | } |
| 115 | } |
| 116 | ThreadUtils.postOnUiThread(new Runnable() { |
| 117 | @Override |
| 118 | public void run() { |
| 119 | callback.onReceiveValue(origins); |
| 120 | } |
| 121 | }); |
| 122 | } |
| 123 | |
| 124 | /** |
| 125 | * Get the domain of an URL using the GURL library. |
| 126 | */ |
| 127 | private String getOriginKey(String url) { |
| 128 | String origin = GURLUtils.getOrigin(url); |
| 129 | if (origin.isEmpty()) { |
| 130 | return null; |
| 131 | } |
| 132 | |
| 133 | return PREF_PREFIX + origin; |
| 134 | } |
| 135 | } |