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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.mms.service;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SqliteWrapper;
import android.net.NetworkUtils;
import android.net.Uri;
import android.provider.Telephony;
import android.text.TextUtils;
import com.android.internal.telephony.PhoneConstants;
import com.android.mms.service.exception.ApnException;
import java.net.URI;
import java.net.URISyntaxException;
/**
* APN settings used for MMS transactions
*/
public class ApnSettings {
// MMSC URL
private final String mServiceCenter;
// MMSC proxy address
private final String mProxyAddress;
// MMSC proxy port
private final int mProxyPort;
// Debug text for this APN: a concatenation of interesting columns of this APN
private final String mDebugText;
private static final String[] APN_PROJECTION = {
Telephony.Carriers.TYPE,
Telephony.Carriers.MMSC,
Telephony.Carriers.MMSPROXY,
Telephony.Carriers.MMSPORT,
Telephony.Carriers.NAME,
Telephony.Carriers.APN,
Telephony.Carriers.BEARER_BITMASK,
Telephony.Carriers.PROTOCOL,
Telephony.Carriers.ROAMING_PROTOCOL,
Telephony.Carriers.AUTH_TYPE,
Telephony.Carriers.MVNO_TYPE,
Telephony.Carriers.MVNO_MATCH_DATA,
Telephony.Carriers.PROXY,
Telephony.Carriers.PORT,
Telephony.Carriers.SERVER,
Telephony.Carriers.USER,
Telephony.Carriers.PASSWORD,
};
private static final int COLUMN_TYPE = 0;
private static final int COLUMN_MMSC = 1;
private static final int COLUMN_MMSPROXY = 2;
private static final int COLUMN_MMSPORT = 3;
private static final int COLUMN_NAME = 4;
private static final int COLUMN_APN = 5;
private static final int COLUMN_BEARER = 6;
private static final int COLUMN_PROTOCOL = 7;
private static final int COLUMN_ROAMING_PROTOCOL = 8;
private static final int COLUMN_AUTH_TYPE = 9;
private static final int COLUMN_MVNO_TYPE = 10;
private static final int COLUMN_MVNO_MATCH_DATA = 11;
private static final int COLUMN_PROXY = 12;
private static final int COLUMN_PORT = 13;
private static final int COLUMN_SERVER = 14;
private static final int COLUMN_USER = 15;
private static final int COLUMN_PASSWORD = 16;
/**
* Load APN settings from system
* @param context
* @param apnName the optional APN name to match
* @param requestId the request ID for logging
*/
public static ApnSettings load(Context context, String apnName, int subId, String requestId)
throws ApnException {
LogUtil.i(requestId, "Loading APN using name " + apnName);
// TODO: CURRENT semantics is currently broken in telephony. Revive this when it is fixed.
//String selection = Telephony.Carriers.CURRENT + " IS NOT NULL";
String selection = null;
String[] selectionArgs = null;
apnName = apnName != null ? apnName.trim() : null;
if (!TextUtils.isEmpty(apnName)) {
//selection += " AND " + Telephony.Carriers.APN + "=?";
selection = Telephony.Carriers.APN + "=?";
selectionArgs = new String[]{ apnName };
}
Cursor cursor = null;
try {
cursor = SqliteWrapper.query(
context,
context.getContentResolver(),
Uri.withAppendedPath(Telephony.Carriers.CONTENT_URI, "/subId/" + subId),
APN_PROJECTION,
selection,
selectionArgs,
null/*sortOrder*/);
if (cursor != null) {
String mmscUrl = null;
String proxyAddress = null;
int proxyPort = -1;
while (cursor.moveToNext()) {
// Read values from APN settings
if (isValidApnType(
cursor.getString(COLUMN_TYPE), PhoneConstants.APN_TYPE_MMS)) {
mmscUrl = trimWithNullCheck(cursor.getString(COLUMN_MMSC));
if (TextUtils.isEmpty(mmscUrl)) {
continue;
}
mmscUrl = NetworkUtils.trimV4AddrZeros(mmscUrl);
try {
new URI(mmscUrl);
} catch (URISyntaxException e) {
throw new ApnException("Invalid MMSC url " + mmscUrl);
}
proxyAddress = trimWithNullCheck(cursor.getString(COLUMN_MMSPROXY));
if (!TextUtils.isEmpty(proxyAddress)) {
proxyAddress = NetworkUtils.trimV4AddrZeros(proxyAddress);
final String portString =
trimWithNullCheck(cursor.getString(COLUMN_MMSPORT));
if (portString != null) {
try {
proxyPort = Integer.parseInt(portString);
} catch (NumberFormatException e) {
LogUtil.e(requestId, "Invalid port " + portString);
throw new ApnException("Invalid port " + portString);
}
}
}
return new ApnSettings(
mmscUrl, proxyAddress, proxyPort, getDebugText(cursor));
}
}
}
} finally {
if (cursor != null) {
cursor.close();
}
}
throw new ApnException("Can not find valid APN");
}
private static String getDebugText(Cursor cursor) {
final StringBuilder sb = new StringBuilder();
sb.append("APN [");
for (int i = 0; i < cursor.getColumnCount(); i++) {
final String name = cursor.getColumnName(i);
final String value = cursor.getString(i);
if (TextUtils.isEmpty(value)) {
continue;
}
if (i > 0) {
sb.append(' ');
}
sb.append(name).append('=').append(value);
}
sb.append("]");
return sb.toString();
}
private static String trimWithNullCheck(String value) {
return value != null ? value.trim() : null;
}
public ApnSettings(String mmscUrl, String proxyAddr, int proxyPort, String debugText) {
mServiceCenter = mmscUrl;
mProxyAddress = proxyAddr;
mProxyPort = proxyPort;
mDebugText = debugText;
}
public String getMmscUrl() {
return mServiceCenter;
}
public String getProxyAddress() {
return mProxyAddress;
}
public int getProxyPort() {
return mProxyPort;
}
public boolean isProxySet() {
return !TextUtils.isEmpty(mProxyAddress);
}
private static boolean isValidApnType(String types, String requestType) {
// If APN type is unspecified, assume APN_TYPE_ALL.
if (TextUtils.isEmpty(types)) {
return true;
}
for (String type : types.split(",")) {
type = type.trim();
if (type.equals(requestType) || type.equals(PhoneConstants.APN_TYPE_ALL)) {
return true;
}
}
return false;
}
public String toString() {
return mDebugText;
}
}
|
