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1 /* | 1 /* |
2 * This file is part of Adblock Plus <http://adblockplus.org/>, | 2 * This file is part of Adblock Plus <http://adblockplus.org/>, |
3 * Copyright (C) 2006-2014 Eyeo GmbH | 3 * Copyright (C) 2006-2014 Eyeo GmbH |
4 * | 4 * |
5 * Adblock Plus is free software: you can redistribute it and/or modify | 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 | 6 * it under the terms of the GNU General Public License version 3 as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
8 * | 8 * |
9 * Adblock Plus is distributed in the hope that it will be useful, | 9 * Adblock Plus is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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22 import java.util.ArrayList; | 22 import java.util.ArrayList; |
23 import java.util.HashMap; | 23 import java.util.HashMap; |
24 | 24 |
25 import org.adblockplus.android.Utils; | 25 import org.adblockplus.android.Utils; |
26 | 26 |
27 import android.content.Context; | 27 import android.content.Context; |
28 import android.util.Log; | 28 import android.util.Log; |
29 | 29 |
30 /** | 30 /** |
31 * Common proxy configurator methods. | 31 * Common proxy configurator methods. |
32 * | |
33 * @author rjeschke | |
34 */ | 32 */ |
35 public final class ProxyConfigurators | 33 public final class ProxyConfigurators |
36 { | 34 { |
37 private static final String TAG = Utils.getTag(ProxyConfigurators.class); | 35 private static final String TAG = Utils.getTag(ProxyConfigurators.class); |
38 private static final ArrayList<Class<?>> CONFIGURATORS = new ArrayList<Class<?
>>(); | 36 private static final ArrayList<Class<?>> CONFIGURATORS = new ArrayList<Class<?
>>(); |
39 private static final HashMap<ProxyRegistrationType, Class<?>> CONFIGURATOR_MAP
= new HashMap<ProxyRegistrationType, Class<?>>(); | 37 private static final HashMap<ProxyRegistrationType, Class<?>> CONFIGURATOR_MAP
= new HashMap<ProxyRegistrationType, Class<?>>(); |
40 private static final HashMap<Class<?>, ProxyRegistrationType> CONFIGURATOR_INV
_MAP = new HashMap<Class<?>, ProxyRegistrationType>(); | 38 private static final HashMap<Class<?>, ProxyRegistrationType> CONFIGURATOR_INV
_MAP = new HashMap<Class<?>, ProxyRegistrationType>(); |
41 | 39 |
42 static | 40 static |
43 { | 41 { |
44 /* | 42 /* |
45 * Add new proxy-configurators here. | 43 * Add new proxy-configurators here. |
46 * | 44 * |
47 * Note: order of adding is important (as later added configurators act as f
allbacks for earlier ones). | 45 * Note: order of adding is important (as later added configurators act as f
allbacks for earlier ones). |
48 */ | 46 */ |
49 add(CyanogenProxyConfigurator.class); | 47 add(CyanogenProxyConfigurator.class); |
50 add(IptablesProxyConfigurator.class); | 48 add(IptablesProxyConfigurator.class); |
51 add(ReflectionProxyConfigurator.class); | 49 add(NativeProxyConfigurator.class); |
52 add(ManualProxyConfigurator.class); | 50 add(ManualProxyConfigurator.class); |
53 } | 51 } |
54 | 52 |
55 private ProxyConfigurators() | 53 private ProxyConfigurators() |
56 { | 54 { |
57 // no instantiation | 55 // no instantiation |
58 } | 56 } |
59 | 57 |
60 private static void add(Class<?> clazz) | 58 private static void add(final Class<?> clazz) |
61 { | 59 { |
62 try | 60 try |
63 { | 61 { |
64 final Constructor<?> ctor = clazz.getConstructor(Context.class); | 62 final Constructor<?> ctor = clazz.getConstructor(Context.class); |
65 final ProxyConfigurator pc = (ProxyConfigurator) ctor.newInstance((Context
) null); | 63 final ProxyConfigurator pc = (ProxyConfigurator) ctor.newInstance((Context
) null); |
66 final ProxyRegistrationType type = pc.getType(); | 64 final ProxyRegistrationType type = pc.getType(); |
67 | 65 |
68 if (!CONFIGURATOR_MAP.containsKey(type)) | 66 if (!CONFIGURATOR_MAP.containsKey(type)) |
69 { | 67 { |
70 CONFIGURATORS.add(clazz); | 68 CONFIGURATORS.add(clazz); |
71 CONFIGURATOR_MAP.put(type, clazz); | 69 CONFIGURATOR_MAP.put(type, clazz); |
72 CONFIGURATOR_INV_MAP.put(clazz, type); | 70 CONFIGURATOR_INV_MAP.put(clazz, type); |
73 } | 71 } |
74 else | 72 else |
75 { | 73 { |
76 // We fail hard here. | 74 // We fail hard here. |
77 throw new IllegalArgumentException("Duplicate proxy configurator (" + cl
azz + ") for type: " + type); | 75 throw new IllegalArgumentException("Duplicate proxy configurator (" + cl
azz + ") for type: " + type); |
78 } | 76 } |
79 } | 77 } |
80 catch (Exception e) | 78 catch (final Exception e) |
81 { | 79 { |
82 // We fail hard here. | 80 // We fail hard here. |
83 throw new IllegalStateException("Failed to register proxy configurator ("
+ clazz + ")", e); | 81 throw new IllegalStateException("Failed to register proxy configurator ("
+ clazz + ")", e); |
84 } | 82 } |
85 } | 83 } |
86 | 84 |
87 private static ProxyConfigurator initialize(Context context, ProxyConfigurator
from) | 85 private static ProxyConfigurator initialize(final Context context, final Proxy
Configurator from) |
88 { | 86 { |
89 int i = 0; | 87 int i = 0; |
90 | 88 |
91 if (from != null) | 89 if (from != null) |
92 { | 90 { |
93 // Scan through configurators to find last used one | 91 // Scan through configurators to find last used one |
94 while (i < CONFIGURATORS.size() && !CONFIGURATORS.get(i).equals(from.getCl
ass())) | 92 while (i < CONFIGURATORS.size() && !CONFIGURATORS.get(i).equals(from.getCl
ass())) |
95 { | 93 { |
96 i++; | 94 i++; |
97 } | 95 } |
98 // One after last-used | 96 // One after last-used |
99 i++; | 97 i++; |
100 } | 98 } |
101 | 99 |
102 // Loop through configurators until one succeeds to initialize | 100 // Loop through configurators until one succeeds to initialize |
103 while (i < CONFIGURATORS.size()) | 101 while (i < CONFIGURATORS.size()) |
104 { | 102 { |
105 try | 103 try |
106 { | 104 { |
107 final Class<?> clazz = CONFIGURATORS.get(i); | 105 final Class<?> clazz = CONFIGURATORS.get(i); |
108 final Constructor<?> ctor = clazz.getConstructor(Context.class); | 106 final Constructor<?> ctor = clazz.getConstructor(Context.class); |
109 final ProxyConfigurator pc = (ProxyConfigurator) ctor.newInstance(contex
t); | 107 final ProxyConfigurator pc = (ProxyConfigurator) ctor.newInstance(contex
t); |
110 if (pc.initialize()) | 108 if (pc.initialize()) |
111 { | 109 { |
112 return pc; | 110 return pc; |
113 } | 111 } |
114 } | 112 } |
115 catch (Exception e) | 113 catch (final Exception e) |
116 { | 114 { |
117 Log.d(TAG, "Configurator exception", e); | 115 Log.d(TAG, "Configurator exception", e); |
118 // We don't need to handle exceptions here, only success matters | 116 // We don't need to handle exceptions here, only success matters |
119 } | 117 } |
120 | 118 |
121 i++; | 119 i++; |
122 } | 120 } |
123 | 121 |
124 return null; | 122 return null; |
125 } | 123 } |
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141 } | 139 } |
142 | 140 |
143 pc.shutdown(); | 141 pc.shutdown(); |
144 } | 142 } |
145 } | 143 } |
146 while (pc != null); | 144 while (pc != null); |
147 | 145 |
148 return null; | 146 return null; |
149 } | 147 } |
150 } | 148 } |
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