PDU串发送长短信
Code
1
/**//// <summary>
2
/// 针对国内短信编码（USC2）
3
/// </summary>
4
public class PDUdecoding
5
{
6
public readonly static int MAX_CHAR_COUNT = 70;//最长可发送汉字个数
7
8
/**//// <summary>
9
/// 奇偶互换并补F
10
/// </summary>
11
/// <param name="value"></param>
12
/// <returns></returns>
13
private static string ParityChange(string value)
14
{
15
string result = string.Empty;
16
int length = value.Length;
17
for (int i = 1; i < length; i += 2)//奇偶互换
18
{
19
result += value[i];
20
result += value[i - 1];
21
}
22
23
if (!(length % 2 == 0))//不是偶数则加上F，与最后一位互换
24
{
25
result += "F";
26
result += value[length - 1];
27
}
28
return result;
29
}
30
31
/**//// <summary>
32
/// 短信内容编码
33
/// </summary>
34
/// <param name="value"></param>
35
/// <returns></returns>
36
/// <remarks>
37
/// 采用Big-Endian 字节顺序的 Unicode 格式编码，将高低位互换
38
/// 将转换后的短信内容存进字节数组
39
/// 去掉在进行Unicode格式编码中，两个字节中的"-",例如：00-21，变成0021
40
/// 将整条短信内容的长度除2，保留两位16进制数
41
/// </remarks>
42
public static string Encoding(string value)
43
{
44
Encoding encoding = System.Text.Encoding.BigEndianUnicode;
45
string result = string.Empty;
46
byte[] bytes = encoding.GetBytes(value);
47
48
for (int i = 0; i < bytes.Length; i++)
49
{
50
result += BitConverter.ToString(bytes, i, 1);
51
}
52
53
return result;
54
}
55
56
public static string EncodeingAddLength(string value)
57
{
58
string result = Encoding(value);
59
return String.Format("{0:X2}{1}", result.Length / 2, result);
60
}
61
62
/**//// <summary>
63
/// 短信中心号码编码
64
/// </summary>
65
/// <param name="value"></param>
66
/// <returns></returns>
67
public static string DecodingCenter(string phone)
68
{
69
string result = string.Empty;
70
result = ParityChange(phone);
71
72
result = String.Format("91{0}", result);//加上91
73
result = String.Format("{0:X2}{1}", result.Length / 2, result);
74
return result;
75
}
76
77
/**//// <summary>
78
/// 接收短信手机号码编码
79
/// </summary>
80
/// <param name="phone"></param>
81
/// <returns></returns>
82
public static string DecodingPhone(string phone)
83
{
84
string result = string.Empty;
85
86
if (null == phone || 0 == phone.Length)
87
{
88
return result;
89
}
90
91
if ("+" == phone[0])
92
{
93
phone = phone.TrimStart("+");
94
}
95
96
if (!(phone.Substring(0, 2) == "86"))//补86
97
{
98
phone = String.Format("86{0}", phone);
99
}
100
101
return ParityChange(phone);
102
}
103
104
/**//// <summary>
105
/// 整个短信的编码
106
/// </summary>
107
/// <param name="center"></param>
108
/// <param name="phone"></param>
109
/// <param name="content"></param>
110
/// <param name="length">要发送内容的长度,由两部分组成,接收手机号加上要发送的内容</param>
111
/// <returns></returns>
112
public static string EncodingSMS(string center, string phone, string content, out string length)
113
{
114
center = DecodingCenter(center);
115
string result = String.Format("{0}11000D91{1}000800{2}", center, DecodingPhone(phone), EncodeingAddLength(content));
116
length = String.Format("{0:D2}", result.Length / 2 - center.Length / 2);//获取短信内容加上手机号码长度
117
return result;
118
}
119
120
/**//// <summary>
121
/// 超长短信
122
/// </summary>
123
/// <param name="center"></param>
124
/// <param name="phone"></param>
125
/// <param name="content"></param>
126
/// <param name="count"></param>
127
/// <param name="i"></param>
128
/// <param name="length"></param>
129
/// <returns></returns>
130
public static string EncodingSMS(string center, string phone, string content,int count,int i, out string length)
131
{
132
if (content.Length <= PDUdecoding.MAX_CHAR_COUNT)
133
{
134
return PDUdecoding.EncodingSMS(center, phone, content, out length);
135
}
136
else
137
{
138
if (count - 1 == i)
139
{
140
content = content.Substring(i * (PDUdecoding.MAX_CHAR_COUNT-6));
141
}
142
else
143
{
144
content = content.Substring(i * (PDUdecoding.MAX_CHAR_COUNT-6), PDUdecoding.MAX_CHAR_COUNT-6);
145
}
146
147
center = DecodingCenter(center);
148
content = Encoding(content);
149
150
string result = "";
151
152
DateTime tm = DateTime.Now;
153
154
//result = string.Format("{0}44000D91{1}0008{2}{3:X2}05000304{4:D2}{5:D2}{6}",
155
// center,
156
// DecodingPhone(phone),
157
// ParityChange(string.Format("{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}08", tm.Year - 2000, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second)),
158
// (content.Length + 12) / 2,
159
// count,
160
// i + 1,
161
// content
162
// );
163
164
result = string.Format("005100{0}{1}0008A7{2:X2}05000304{3:D2}{4:D2}{5}",
165
center,
166
DecodingPhone(phone),
167
(content.Length + 12) / 2,
168
count,
169
i + 1,
170
content);
171
172
length = String.Format("{0:D2}", result.Length / 2 - center.Length / 2);//获取短信内容加上手机号码长度
173
return result;
174
}
175
}
176
177
public static int GetMaxEncodeCharCount()
178
{
179
return PDUdecoding.MAX_CHAR_COUNT * 2 - 6;
180
}
181
/**//// <summary>
182
///
183
/// </summary>
184
/// <param name="center"></param>
185
/// <param name="phone"></param>
186
/// <param name="count"></param>
187
/// <param name="i"></param>
188
/// <param name="content"></param>
189
/// <param name="length"></param>
190
/// <returns></returns>
191
public static string EncodingSMS(string center, string phone, int count, int i, string content, out string length)
192
{
193
string message = string.Empty;
194
int msgcount = PDUdecoding.GetMaxEncodeCharCount() * 2;//固定
195
196
if (i == count)
197
{
198
message = content.Substring((i - 1) * msgcount); //共可发送134个编码
199
}
200
else
201
{
202
message = content.Substring((i - 1) * msgcount, msgcount);
203
}
204
205
center = DecodingCenter(center);
206
207
//string result = string.Format("005100{0}{1}0008A7{2:X2}05000304{3:D2}{4:D2}{5}",
208
// center,
209
// DecodingPhone(phone),
210
// (message.Length + 12) / 2,
211
// count,
212
// i,
213
// message);
214
215
//length = String.Format("{0:D2}", result.Length / 2 - center.Length / 2);//获取短信内容加上手机号码长度
216
217
/**/////string ph = phone;
218
////phone = DecodingPhone(phone).Substring(2);
219
220
////string result = string.Format("005100{0}{1}0008A7{2:X2}05000304{3:D2}{4:D2}{5}",
221
//// string.Format("{0:X2}A1", ph.Length),
222
//// phone,
223
//// (message.Length + 12) / 2,
224
//// count,
225
//// i,
226
//// message);
227
228
string result = String.Format("{0}51000D91{1}000800{2:X2}05000304{4:D2}{5:D2}{3}",
229
center,
230
DecodingPhone(phone),
231
message.Length/2 + 6,
232
message,
233
count,
234
i
235
);
236
237
length = String.Format("{0:D2}", result.Length / 2 - center.Length / 2);//获取短信内容加上手机号码长度
238
239
return result;
240
}
241
242
public static string EncodingOther(string content)
243
{
244
string result = string.Empty;
245
byte[] bytes = System.Text.Encoding.BigEndianUnicode.GetBytes(content);
246
247
//for (int i = 0; i < bytes.Length; i++)
248
//{
249
// if (0x80 == (bytes[i] & 0x80))//汉字 6c49 108 73
250
// {
251
// result = string.Format("{0}{1:X2}", result, bytes[i]);
252
// result = string.Format("{0}{1:X2}", result, bytes[++i]);
253
// }
254
// else
255
// {
256
// result = string.Format("{0}00{1:X2}", result, bytes[i]);
257
// }
258
//}
259
foreach (char item in content)
260
{
261
bytes = System.Text.Encoding.BigEndianUnicode.GetBytes(new char[1]
{item});
262
if (bytes.Length < 2)
263
continue;
264
265
//
266
if (0x80 ==( Asc(item) & 0x80))//汉字
267
{
268
result = string.Format("{0}{1:X2}", result, bytes[0]);
269
result = string.Format("{0}{1:X2}", result, bytes[1]);
270
}
271
else
272
{
273
result = string.Format("{0}00{1:X2}", result, bytes[1]);
274
}
275
}
276
return result;
277
}
278
279
private static int Asc(char item)
280
{
281
byte[] bytes = System.Text.Encoding.Default.GetBytes(new char[1]
{ item });
282
283
if (bytes.Length < 2)
284
return bytes[0];
285
286
return bytes[0] * 256 + bytes[1] - 65535;
287
}
288
}
发送长短信时需要先调用EncodingOther对字符进行编码，然后调用EncodingSMS第二个重载方法发送。
发送长短信时需要调用
![gsm短信猫长短信pdu数据包分析[转]](https://600zi.400zi.cn/uploadfile/img/15/971/fc226df9ee8e5a8ee009adcb564ad713.jpg)
