1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
package org.thialfihar.android.apg.utils;
import java.util.ArrayList;
import android.content.Context;
import android.content.ComponentName;
import android.content.ServiceConnection;
import android.content.Intent;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import org.thialfihar.android.apg.IApgService;
/**
* This class can be used by other projects to simplify connecting to the
* APG-Service. Kind of wrapper of for AIDL.
*
* It is not used in this project.
*/
public class ApgCon {
private final static String TAG = "ApgCon";
private final Context mContext;
private final Bundle result = new Bundle();
private final Bundle args = new Bundle();
private final ArrayList<String> error_list = new ArrayList<String>();
private final ArrayList<String> warning_list = new ArrayList<String>();
/** Remote service for decrypting and encrypting data */
private IApgService apgService = null;
/** Set apgService accordingly to connection status */
private ServiceConnection apgConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
Log.d(TAG, "IApgService bound to apgService");
apgService = IApgService.Stub.asInterface(service);
}
public void onServiceDisconnected(ComponentName className) {
Log.d(TAG, "IApgService disconnected");
apgService = null;
}
};
public static enum error {
GENERIC, // no special type
CANNOT_BIND_TO_APG, // connection to apg service not possible
CALL_MISSING, // function to call not provided
CALL_NOT_KNOWN, // apg service does not know what to do
}
public ApgCon(Context ctx) {
Log.d(TAG, "EncryptionService created");
mContext = ctx;
}
/** try to connect to the apg service */
private boolean connect() {
Log.d(TAG, "trying to bind the apgService to context");
if (apgService != null) {
Log.d(TAG, "allready connected");
return true;
}
try {
mContext.bindService(new Intent(IApgService.class.getName()), apgConnection, Context.BIND_AUTO_CREATE);
} catch (Exception e) {
Log.d(TAG, "could not bind APG service");
return false;
}
int wait_count = 0;
while (apgService == null && wait_count++ < 15) {
Log.d(TAG, "sleeping 1 second to wait for apg");
android.os.SystemClock.sleep(1000);
}
;
if (wait_count >= 15) {
Log.d(TAG, "slept waiting for nothing!");
return false;
}
return true;
}
private boolean initialize() {
if (apgService == null) {
if (!connect()) {
Log.d(TAG, "connection to apg service failed");
return false;
}
}
return true;
}
public boolean call(String function) {
return this.call(function, args, result);
}
public boolean call(String function, Bundle pArgs) {
return this.call(function, pArgs, result);
}
public boolean call(String function, Bundle pArgs, Bundle pReturn) {
error_list.clear();
warning_list.clear();
if (!initialize()) {
error_list.add("CLASS: Cannot bind to ApgService");
pReturn.putInt("CLASS_ERROR", error.CANNOT_BIND_TO_APG.ordinal());
return false;
}
if (function == null || function.length() == 0) {
error_list.add("CLASS: Function to call missing");
pReturn.putInt("CLASS_ERROR", error.CALL_MISSING.ordinal());
return false;
}
try {
Boolean ret = (Boolean) IApgService.class.getMethod(function, Bundle.class, Bundle.class).invoke(apgService, pArgs, pReturn);
error_list.addAll(pReturn.getStringArrayList("ERRORS"));
warning_list.addAll(pReturn.getStringArrayList("WARNINGS"));
return ret;
} catch (NoSuchMethodException e) {
Log.d(TAG, e.getMessage());
error_list.add("CLASS: " + e.getMessage());
pReturn.putInt("CLASS_ERROR", error.CALL_NOT_KNOWN.ordinal());
return false;
} catch (Exception e) {
Log.d(TAG, e.getMessage());
error_list.add("CLASS: " + e.getMessage());
pReturn.putInt("CLASS_ERROR", error.GENERIC.ordinal());
return false;
}
}
public void set_arg(String key, String val) {
args.putString(key, val);
}
public void set_arg(String key, boolean val) {
args.putBoolean(key, val);
}
public void set_arg(String key, int val) {
args.putInt(key, val);
}
public void clear_args() {
args.clear();
}
public Object get_arg(String key) {
return args.get(key);
}
public String get_next_error() {
if (error_list.size() != 0)
return error_list.remove(0);
else
return null;
}
public boolean has_next_error() {
return error_list.size() != 0;
}
public String get_next_warning() {
if (warning_list.size() != 0)
return warning_list.remove(0);
else
return null;
}
public boolean has_next_warning() {
return warning_list.size() != 0;
}
public String get_result() {
return result.getString("RESULT");
}
private void disconnect() {
Log.d(TAG, "disconnecting apgService");
if (apgService != null) {
mContext.unbindService(apgConnection);
apgService = null;
}
}
}
|
