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1 /* | |
2 * This file is part of Adblock Plus <https://adblockplus.org/>, | |
3 * Copyright (C) 2006-present eyeo GmbH | |
4 * | |
5 * Adblock Plus is free software: you can redistribute it and/or modify | |
6 * it under the terms of the GNU General Public License version 3 as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * Adblock Plus is distributed in the hope that it will be useful, | |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 * GNU General Public License for more details. | |
13 * | |
14 * You should have received a copy of the GNU General Public License | |
15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>. | |
16 */ | |
17 | |
18 package org.adblockplus.libadblockplus.android.settings; | |
19 | |
20 import android.content.Context; | |
21 import android.content.SharedPreferences; | |
22 import android.util.Log; | |
23 | |
24 import org.adblockplus.libadblockplus.android.AdblockEngine; | |
25 import org.adblockplus.libadblockplus.android.AdblockEngineProvider; | |
26 import org.adblockplus.libadblockplus.android.SingleInstanceEngineProvider; | |
27 import org.adblockplus.libadblockplus.android.Utils; | |
28 | |
29 /** | |
30 * AdblockHelper shared resources | |
31 * (singleton) | |
32 */ | |
33 public class AdblockHelper | |
34 { | |
35 private static final String TAG = Utils.getTag(AdblockHelper.class); | |
36 | |
37 /** | |
38 * Suggested preference name to store settings | |
39 */ | |
40 public static final String PREFERENCE_NAME = "ADBLOCK"; | |
41 | |
42 /** | |
43 * Suggested preference name to store intercepted subscription requests | |
44 */ | |
45 public static final String PRELOAD_PREFERENCE_NAME = "ADBLOCK_PRELOAD"; | |
46 private static AdblockHelper _instance; | |
47 | |
48 private SingleInstanceEngineProvider provider; | |
49 private AdblockSettingsStorage storage; | |
50 | |
51 private final Runnable engineCreatedCallback = new Runnable() | |
52 { | |
53 @Override | |
54 public void run() | |
55 { | |
56 AdblockSettings settings = storage.load(); | |
57 if (settings != null) | |
58 { | |
59 Log.d(TAG, "Applying saved adblock settings to adblock engine"); | |
60 // apply last saved settings to adblock engine. | |
61 // all the settings except `enabled` and whitelisted domains list | |
62 // are saved by adblock engine itself | |
63 provider.getEngine().setEnabled(settings.isAdblockEnabled()); | |
64 provider.getEngine().setWhitelistedDomains(settings.getWhitelistedDomain
s()); | |
65 | |
66 // allowed connection type is saved by filter engine but we need to over
ride it | |
67 // as filter engine can be not created when changing | |
68 String connectionType = (settings.getAllowedConnectionType() != null | |
69 ? settings.getAllowedConnectionType().getValue() | |
70 : null); | |
71 provider.getEngine().getFilterEngine().setAllowedConnectionType(connecti
onType); | |
72 } | |
73 else | |
74 { | |
75 Log.w(TAG, "No saved adblock settings"); | |
76 } | |
77 } | |
78 }; | |
79 | |
80 private final Runnable engineDisposedCallback = new Runnable() | |
81 { | |
82 @Override | |
83 public void run() | |
84 { | |
85 Log.d(TAG, "Releasing adblock settings storage"); | |
86 storage = null; | |
87 } | |
88 }; | |
89 | |
90 // singleton | |
91 protected AdblockHelper() | |
92 { | |
93 // prevents instantiation | |
94 } | |
95 | |
96 /** | |
97 * Use to get AdblockHelper instance | |
98 * @return adblock instance | |
99 */ | |
100 public static synchronized AdblockHelper get() | |
101 { | |
102 if (_instance == null) | |
103 { | |
104 _instance = new AdblockHelper(); | |
105 } | |
106 | |
107 return _instance; | |
108 } | |
109 | |
110 public AdblockEngineProvider getProvider() | |
111 { | |
112 if (provider == null) | |
113 { | |
114 throw new IllegalStateException("Usage exception: call init(...) first"); | |
115 } | |
116 return provider; | |
117 } | |
118 | |
119 public AdblockSettingsStorage getStorage() | |
120 { | |
121 if (storage == null) | |
122 { | |
123 throw new IllegalStateException("Usage exception: call init(...) first"); | |
124 } | |
125 return storage; | |
126 } | |
127 | |
128 /** | |
129 * Init with context | |
130 * @param context application context | |
131 * @param basePath file system root to store files | |
132 * | |
133 * Adblock Plus library will download subscription files and s
tore them on | |
134 * the path passed. The path should exist and the directory co
ntent should not be | |
135 * cleared out occasionally. Using `context.getCacheDir().getA
bsolutePath()` is not | |
136 * recommended because it can be cleared by the system. | |
137 * @param developmentBuild debug or release? | |
138 * @param preferenceName Shared Preferences name to store adblock settings | |
139 */ | |
140 public SingleInstanceEngineProvider init(Context context, String basePath, | |
141 boolean developmentBuild, String pref
erenceName) | |
142 { | |
143 initProvider(context, basePath, developmentBuild); | |
144 initStorage(context, preferenceName); | |
145 return provider; | |
146 } | |
147 | |
148 private void initProvider(Context context, String basePath, boolean developmen
tBuild) | |
149 { | |
150 provider = new SingleInstanceEngineProvider(context, basePath, developmentBu
ild); | |
151 provider.setEngineCreatedCallback(engineCreatedCallback); | |
152 provider.setEngineDisposedCallback(engineDisposedCallback); | |
153 } | |
154 | |
155 private void initStorage(Context context, String settingsPreferenceName) | |
156 { | |
157 // read and apply current settings | |
158 SharedPreferences settingsPrefs = context.getSharedPreferences( | |
159 settingsPreferenceName, | |
160 Context.MODE_PRIVATE); | |
161 | |
162 storage = new SharedPrefsStorage(settingsPrefs); | |
163 } | |
164 | |
165 /** | |
166 * @deprecated The method is deprecated: use .getProvider().retain() instead | |
167 */ | |
168 @Deprecated | |
169 public boolean retain(boolean asynchronous) | |
170 { | |
171 return provider.retain(asynchronous); | |
172 } | |
173 | |
174 /** | |
175 * @deprecated The method is deprecated: use .getProvider().waitForReady() ins
tead | |
176 */ | |
177 @Deprecated | |
178 public void waitForReady() | |
179 { | |
180 provider.waitForReady(); | |
181 } | |
182 | |
183 /** | |
184 * @deprecated The method is deprecated: use .getProvider().getEngine() instea
d | |
185 */ | |
186 @Deprecated | |
187 public AdblockEngine getEngine() | |
188 { | |
189 return provider.getEngine(); | |
190 } | |
191 | |
192 /** | |
193 * @deprecated The method is deprecated: use .getProvider().release() instead | |
194 */ | |
195 @Deprecated | |
196 public boolean release() | |
197 { | |
198 return provider.release(); | |
199 } | |
200 | |
201 /** | |
202 * @deprecated The method is deprecated: use .getProvider().getCounter() inste
ad | |
203 */ | |
204 @Deprecated | |
205 public int getCounter() | |
206 { | |
207 return provider.getCounter(); | |
208 } | |
209 } | |
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