Code
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/**//// <summary>
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/// 针对国内短信编码（USC2）
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/// </summary>
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public class PDUdecoding
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{
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public readonly static int MAX_CHAR_COUNT = 70;//最长可发送汉字个数
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/**//// <summary>
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/// 奇偶互换并补F
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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private static string ParityChange(string value)
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{
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string result = string.Empty;
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int length = value.Length;
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for (int i = 1; i < length; i += 2)//奇偶互换
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{
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result += value[i];
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result += value[i - 1];
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}
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if (!(length % 2 == 0))//不是偶数则加上F，与最后一位互换
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{
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result += 'F';
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result += value[length - 1];
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}
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return result;
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}
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/**//// <summary>
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/// 短信内容编码
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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/// <remarks>
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/// 采用Big-Endian 字节顺序的 Unicode 格式编码，将高低位互换
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/// 将转换后的短信内容存进字节数组
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/// 去掉在进行Unicode格式编码中，两个字节中的"-",例如：00-21，变成0021
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/// 将整条短信内容的长度除2，保留两位16进制数
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/// </remarks>
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public static string Encoding(string value)
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{
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Encoding encoding = System.Text.Encoding.BigEndianUnicode;
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string result = string.Empty;
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byte[] bytes = encoding.GetBytes(value);
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for (int i = 0; i < bytes.Length; i++)
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{
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result += BitConverter.ToString(bytes, i, 1);
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}
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return result;
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}
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public static string EncodeingAddLength(string value)
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{
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string result = Encoding(value);
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return String.Format("{0:X2}{1}", result.Length / 2, result);
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}
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/**//// <summary>
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/// 短信中心号码编码
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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public static string DecodingCenter(string phone)
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{
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string result = string.Empty;
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result = ParityChange(phone);
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result = String.Format("91{0}", result);//加上91
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result = String.Format("{0:X2}{1}", result.Length / 2, result);
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return result;
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}
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/**//// <summary>
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/// 接收短信手机号码编码
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/// </summary>
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/// <param name="phone"></param>
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/// <returns></returns>
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public static string DecodingPhone(string phone)
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{
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string result = string.Empty;
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if (null == phone || 0 == phone.Length)
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{
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return result;
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}
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if ('+' == phone[0])
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{
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phone = phone.TrimStart('+');
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}
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if (!(phone.Substring(0, 2) == "86"))//补86
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{
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phone = String.Format("86{0}", phone);
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}
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return ParityChange(phone);
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}
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/**//// <summary>
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/// 整个短信的编码
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/// </summary>
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/// <param name="center"></param>
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/// <param name="phone"></param>
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/// <param name="content"></param>
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/// <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>
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/// <returns></returns>
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public static string EncodingSMS(string center, string phone, string content, out string length)
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{
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center = DecodingCenter(center);
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string result = String.Format("{0}11000D91{1}000800{2}", center, DecodingPhone(phone), EncodeingAddLength(content));
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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
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return result;
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}
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/**//// <summary>
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/// 超长短信
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/// </summary>
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/// <param name="center"></param>
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/// <param name="phone"></param>
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/// <param name="content"></param>
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/// <param name="count"></param>
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/// <param name="i"></param>
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/// <param name="length"></param>
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/// <returns></returns>
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public static string EncodingSMS(string center, string phone, string content,int count,int i, out string length)
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{
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if (content.Length <= PDUdecoding.MAX_CHAR_COUNT)
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{
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return PDUdecoding.EncodingSMS(center, phone, content, out length);
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}
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else
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{
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if (count - 1 == i)
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{
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content = content.Substring(i * (PDUdecoding.MAX_CHAR_COUNT-6));
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}
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else
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{
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content = content.Substring(i * (PDUdecoding.MAX_CHAR_COUNT-6), PDUdecoding.MAX_CHAR_COUNT-6);
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}
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center = DecodingCenter(center);
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content = Encoding(content);
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string result = "";
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DateTime tm = DateTime.Now;
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//result = string.Format("{0}44000D91{1}0008{2}{3:X2}05000304{4:D2}{5:D2}{6}",
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// center,
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// DecodingPhone(phone),
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// 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)),
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// (content.Length + 12) / 2,
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// count,
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// i + 1,
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// content
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// );
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result = string.Format("005100{0}{1}0008A7{2:X2}05000304{3:D2}{4:D2}{5}",
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center,
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DecodingPhone(phone),
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(content.Length + 12) / 2,
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count,
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i + 1,
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content);
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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
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return result;
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}
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}
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public static int GetMaxEncodeCharCount()
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{
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return PDUdecoding.MAX_CHAR_COUNT * 2 - 6;
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}
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/**//// <summary>
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///
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/// </summary>
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/// <param name="center"></param>
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/// <param name="phone"></param>
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/// <param name="count"></param>
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/// <param name="i"></param>
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/// <param name="content"></param>
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/// <param name="length"></param>
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/// <returns></returns>
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public static string EncodingSMS(string center, string phone, int count, int i, string content, out string length)
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{
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string message = string.Empty;
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int msgcount = PDUdecoding.GetMaxEncodeCharCount() * 2;//固定
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if (i == count)
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{
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message = content.Substring((i - 1) * msgcount); //共可发送134个编码
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}
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else
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{
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message = content.Substring((i - 1) * msgcount, msgcount);
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}
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center = DecodingCenter(center);
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//string result = string.Format("005100{0}{1}0008A7{2:X2}05000304{3:D2}{4:D2}{5}",
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// center,
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// DecodingPhone(phone),
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// (message.Length + 12) / 2,
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// count,
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// i,
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// message);
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//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
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/**/////string ph = phone;
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////phone = DecodingPhone(phone).Substring(2);
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////string result = string.Format("005100{0}{1}0008A7{2:X2}05000304{3:D2}{4:D2}{5}",
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//// string.Format("{0:X2}A1", ph.Length),
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//// phone,
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//// (message.Length + 12) / 2,
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//// count,
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//// i,
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//// message);
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string result = String.Format("{0}51000D91{1}000800{2:X2}05000304{4:D2}{5:D2}{3}",
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center,
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DecodingPhone(phone),
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message.Length/2 + 6,
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message,
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count,
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i
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);
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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
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return result;
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}
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public static string EncodingOther(string content)
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{
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string result = string.Empty;
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byte[] bytes = System.Text.Encoding.BigEndianUnicode.GetBytes(content);
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//for (int i = 0; i < bytes.Length; i++)
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//{
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// if (0x80 == (bytes[i] & 0x80))//汉字 6c49 108 73
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// {
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// result = string.Format("{0}{1:X2}", result, bytes[i]);
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// result = string.Format("{0}{1:X2}", result, bytes[++i]);
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// }
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// else
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// {
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// result = string.Format("{0}00{1:X2}", result, bytes[i]);
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// }
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//}
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foreach (char item in content)
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{
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bytes = System.Text.Encoding.BigEndianUnicode.GetBytes(new char[1]
{item});
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if (bytes.Length < 2)
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continue;
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//
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if (0x80 ==( Asc(item) & 0x80))//汉字
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{
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result = string.Format("{0}{1:X2}", result, bytes[0]);
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result = string.Format("{0}{1:X2}", result, bytes[1]);
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}
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else
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{
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result = string.Format("{0}00{1:X2}", result, bytes[1]);
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}
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}
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return result;
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}
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private static int Asc(char item)
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{
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byte[] bytes = System.Text.Encoding.Default.GetBytes(new char[1]
{ item });
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if (bytes.Length < 2)
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return bytes[0];
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return bytes[0] * 256 + bytes[1] - 65535;
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}
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}
