项目使用的 safe.cs 帮助类
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/* ====================本类库主要功能==================== * 正则表达式的验证 * session的设置,获取 * cookies的设置,删除,读取,加密/解密 * cache数据缓存系列 会话缓存 全局缓存 * IP系列，获取，整数转ip，ip转整数 * 普通文本的加密/解密 * appsettings的获取/设置 * url系列 获取参数字典，替换参数 * 字符串系列 定长截取，清空html，str1在str2内出现次数 * 随机数 */using System;using System.Collections.Generic;using System.Text;using System.Net;using System.Text.RegularExpressions;using System.Security.Cryptography;using System.Web;using System.Configuration;using System.Web.Caching;using System.Linq;namespace Mvc.Util{ public class Safe { #region 正则表达式验证 /// <summary> /// 验证手机号码 /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckMobile(string str) { return Regex.IsMatch(str, @"1\d{10}"); } /// <summary> /// 验证邮编 /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckPostCode(string str) { return Regex.IsMatch(str, @"[1-9]\d{5}"); } /// <summary> /// 验证IDCard 身份证号 /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckIdCard(string str) { return Regex.IsMatch(str, @"\d{15}(\d\d[0-9xX])?"); } /// <summary> /// 验证网址（URL） /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckUrl(string str) { return Regex.IsMatch(str, @"[a-zA-z]+://[^\s]*"); } /// <summary> /// 验证IP /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckIP(string str) { return Regex.IsMatch(str, @"((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)"); } /// <summary> /// 验证邮箱 /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckEmail(string str) { return Regex.IsMatch(str, @"\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"); } /// <summary> /// 验证QQ /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckQQ(string str) { return Regex.IsMatch(str, @"[1-9]\d{4,}"); } /// <summary> /// 验证汉字 /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckChinese(string str) { return Regex.IsMatch(str, @"[\u4e00-\u9fa5]"); } /// <summary> /// 验证固定电话 /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool CheckTelephone(string str) { return Regex.IsMatch(str, @"(\d{4}-|\d{3}-)?(\d{8}|\d{7})"); } /// <summary> ///验证英语单词 /// </summary> /// <param name="input"></param> /// <returns></returns> public static bool CheckEnglish(string input) { return Regex.IsMatch(input, @"^\w+$"); } /// <summary> /// 检查是否Int类型 /// </summary> /// <param name="input"></param> /// <returns></returns> public static bool CheckInteger(string input) { return Regex.IsMatch(input, @"^-?\d+$"); } /// <summary> /// 检查是否为字母和数字 /// </summary> /// <param name="input"></param> /// <returns></returns> public static bool CheckLetterAndNumber(string input) { return Regex.IsMatch(input, "^[A-Za-z0-9_]+$"); } /// <summary> /// 检查是否为整数 /// </summary> /// <param name="input"></param> /// <returns></returns> public static bool CheckNumber(string input) { return Regex.IsMatch(input, @"^\d+$"); } /// <summary> /// 检查是否为非0整数 /// </summary> /// <param name="input"></param> /// <returns></returns> public static bool CheckNumberNotZero(string input) { return Regex.IsMatch(input, @"^[^0]\d*$"); } #endregion #region 加密/解密 /// <summary> /// 加密 /// </summary> /// <param name="Text"></param> /// <returns></returns> public static string Encrypt(string Text) { return Encrypt(Text, "zhifeiya@foxmail.com"); } public static string GetMD5(string sDataIn, string saltValue) { System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider(); byte[] byt, bytHash; byt = System.Text.Encoding.UTF8.GetBytes(saltValue + sDataIn); bytHash = md5.ComputeHash(byt); md5.Clear(); string sTemp = ""; for (int i = 0; i < bytHash.Length; i++) { sTemp += bytHash[i].ToString("x").PadLeft(2, '0'); } return sTemp; } /// <summary> /// 加密数据 /// </summary> /// <param name="Text"></param> /// <param name="sKey"></param> /// <returns></returns> public static string Encrypt(string Text, string sKey) { DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray; inputByteArray = Encoding.Default.GetBytes(Text); des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); System.IO.MemoryStream ms = new System.IO.MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); StringBuilder ret = new StringBuilder(); foreach (byte b in ms.ToArray()) { ret.AppendFormat("{0:X2}", b); } return ret.ToString(); } /// <summary> /// 解密 /// </summary> /// <param name="Text"></param> /// <returns></returns> public static string Decrypt(string Text) { return Decrypt(Text, "zhifeiya@foxmail.com"); } /// <summary> /// 解密数据 /// </summary> /// <param name="Text"></param> /// <param name="sKey"></param> /// <returns></returns> public static string Decrypt(string Text, string sKey) { DESCryptoServiceProvider des = new DESCryptoServiceProvider(); int len; len = Text.Length / 2; byte[] inputByteArray = new byte[len]; int x, i; for (x = 0; x < len; x++) { i = Convert.ToInt32(Text.Substring(x * 2, 2), 16); inputByteArray[x] = (byte)i; } des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8)); System.IO.MemoryStream ms = new System.IO.MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); return Encoding.Default.GetString(ms.ToArray()); } #endregion #region IP系列，获取，整数转ip，ip转整数 /// <summary> /// 将IP地址转为整数形式 /// </summary> /// <returns>整数</returns> public static long IpToLong(IPAddress ip) { int x = 3; long o = 0; foreach (byte f in ip.GetAddressBytes()) { o += (long)f << 8 * x--; } return o; } /// <summary> /// 将整数转为IP地址 /// </summary> /// <returns>IP地址</returns> public static IPAddress LongToIP(long l) { byte[] b = new byte[4]; for (int i = 0; i < 4; i++) { b[3 - i] = (byte)(l >> 8 * i & 255); } return new IPAddress(b); } /// <summary> /// 获取IP /// </summary> /// <returns></returns> public static string GetIp() { string result = String.Empty; result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; if (null == result || result == String.Empty) { result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } if (null == result || result == String.Empty) { result = HttpContext.Current.Request.UserHostAddress; } if (null == result || result == String.Empty) { return "0.0.0.0"; } return result; } #endregion #region cookie系列，删，查，添，加密cookie，解密码cookie public static void CreatCookie(string key, string value, int day) { HttpCookie cookie = new HttpCookie(key); cookie.Value = value; cookie.Expires = DateTime.Now.AddDays(day); System.Web.HttpContext.Current.Response.Cookies.Add(cookie); } public static void CreatCookie(string key, string value, int day, int hour = 0, int min = 0) { HttpCookie cookie = new HttpCookie(key); cookie.Value = value; cookie.Expires = DateTime.Now.AddDays(day).AddHours(hour).AddMinutes(min); System.Web.HttpContext.Current.Response.Cookies.Add(cookie); } /// <summary> /// 读取Cookie /// </summary> /// <param name="key"></param> /// <returns></returns> public static string GetCookie(string key) { string value = string.Empty; HttpCookie cookie = System.Web.HttpContext.Current.Request.Cookies[key]; if (cookie != null) { value = cookie.Value; return value; } else { return value; } } /// <summary> /// 删除Cookie /// </summary> /// <param name="key"></param> public static void DelCookie(string key) { HttpCookie cookie = new HttpCookie(key); cookie.Expires = DateTime.Now.AddDays(-1); System.Web.HttpContext.Current.Response.Cookies.Add(cookie); } private const string key = "1i950p-e2h&wStG7seiehov5";//key的长度必须为16位或24位，否则报错“指定键的大小对于此算法无效。” /// <summary> /// 加密Cookie /// </summary> /// <param name="str"></param> /// <returns></returns> public static string EncryptCookie(string str) { byte[] data = UnicodeEncoding.Unicode.GetBytes(str);//如果加密中文，不能用ASCII码 byte[] keys = ASCIIEncoding.ASCII.GetBytes(key); TripleDESCryptoServiceProvider des = new TripleDESCryptoServiceProvider(); des.Key = keys;//key的长度必须为16位或24位，否则报错“指定键的大小对于此算法无效。”，des.Key不支持中文 //des.Mode = CipherMode.ECB;设置运算模式 des.Mode = CipherMode.ECB; ICryptoTransform cryp = des.CreateEncryptor();//加密 return Convert.ToBase64String(cryp.TransformFinalBlock(data, 0, data.Length)); } /// <summary> /// 解密Cookie /// </summary> /// <param name="str"></param> /// <returns></returns> public static string DecryptCookie(string str) { byte[] data = Convert.FromBase64String(str); byte[] keys = ASCIIEncoding.ASCII.GetBytes(key); TripleDESCryptoServiceProvider des = new TripleDESCryptoServiceProvider(); des.Key = keys; des.Mode = CipherMode.ECB;//设置运算模式 des.Padding = PaddingMode.PKCS7; ICryptoTransform cryp = des.CreateDecryptor();//解密 return UnicodeEncoding.Unicode.GetString(cryp.TransformFinalBlock(data, 0, data.Length)); } #endregion #region session系列，不建议使用，尤其是不建议设置时间 /// <summary> /// 设置Session 【弃用：Timeout是全局的，设置任何值都会影响其他Session，建议使用SetSessionCache】 /// </summary> /// <param name="strSessionName"></param> /// <param name="strValue"></param> /// <param name="iExpires">分钟为单位</param> public static void SessionAdd(string strSessionName, string strValue) { HttpContext.Current.Session[strSessionName] = strValue; //HttpContext.Current.Session.Timeout = iExpires; } /// <summary> /// 删除session /// </summary> /// <param name="strSessionName"></param> public static void SessionRemove(string strSessionName) { HttpContext.Current.Session[strSessionName] = null; //HttpContext.Current.Session.Timeout = 0; } /// <summary> /// 读取Session /// </summary> /// <param name="strSessionName"></param> /// <returns></returns> public static string SessionGet(string strSessionName) { if (HttpContext.Current.Session[strSessionName] == null) { return null; } else { return HttpContext.Current.Session[strSessionName].ToString(); } } #endregion #region appSetting系列 /// <summary> /// 设置webconfig的值 /// </summary> /// <param name="key"></param> /// <param name="value"></param> public static void SetWebConfig(string key, string value) { Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(HttpContext.Current.Request.ApplicationPath); AppSettingsSection appSetting = (AppSettingsSection)config.GetSection("appSettings"); if (appSetting.Settings[key] == null)//如果不存在此节点，则添加 { appSetting.Settings.Add(key, value); } else//如果存在此节点，则修改 { appSetting.Settings[key].Value = value; } config.Save(); config = null; } /// <summary> /// 通过key,获取appSetting的值 /// </summary> /// <param name="key">key</param> /// <returns>value</returns> public static string GetWebConfigValueByKey(string key) { string value = string.Empty; Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(HttpContext.Current.Request.ApplicationPath); AppSettingsSection appSetting = (AppSettingsSection)config.GetSection("appSettings"); if (appSetting.Settings[key] != null)//如果不存在此节点，则添加 { value = appSetting.Settings[key].Value; } config = null; return value; } #endregion #region cache数据缓存系列 会话缓存 全局缓存 #region 全局缓存 /// <summary> /// 清楚缓存 /// </summary> /// <param name="key"></param> /// <returns></returns> public static void ClearCache(string key) { if (GetCache(key) != null) { HttpContext.Current.Cache.Remove(key); } } /// <summary> /// 添加缓存 tips:会覆盖key相同的缓存 /// </summary> /// <param name="key">key</param> /// <param name="value">value</param> /// <param name="ts">过期时间段 比如10秒 20秒 等等</param> public static void SetCache(string key, Object value, TimeSpan ts) { ClearCache(key); HttpContext.Current.Cache.Insert(key, value, null, DateTime.UtcNow.Add(ts), Cache.NoSlidingExpiration); } /// <summary> /// 根据key 读取缓存信息 /// </summary> /// <param name="key">key</param> /// <returns></returns> public static Object GetCache(string key) { return HttpContext.Current.Cache.Get(key); } #endregion #region 会话缓存 /// <summary> /// 设置会话缓存 【tip：该方式的缓存只能在当前会话中使用】 /// </summary> /// <param name="key"></param> /// <param name="value"></param> /// <param name="ts">最大有效期为当前session的有效期，null：表示使用当前会话有效期，其他：表示设置的有效期</param> public static void SetSessionCache(string key, Object value, TimeSpan? ts) { if (HttpContext.Current.Session.Count <= 0) { HttpContext.Current.Session[DateTime.Now.ToBinary().ToString()] = ""; } string sessionid = HttpContext.Current.Session.SessionID; key = sessionid + key; if (ts == null) { SetCache(key, value, new TimeSpan(0, HttpContext.Current.Session.Timeout, 0)); } else { SetCache(key, value, (TimeSpan)ts); } } /// <summary> /// 读取会话缓存 【tip：该方式的缓存智能在当前会话中使用】 /// </summary> /// <param name="key"></param> /// <returns></returns> public static Object GetSessionCache(string key) { string sessionid = HttpContext.Current.Session.SessionID; key = sessionid + key; return GetCache(key); } /// <summary> /// 清除 会话缓存 【tip：该方式的缓存智能在当前会话中使用】 /// </summary> /// <param name="key"></param> public static void RemoveSessionCache(string key) { string sessionid = HttpContext.Current.Session.SessionID; key = sessionid + key; ClearCache(key); } #endregion #endregion #region 字符串系列 定长截取，清空html，str1在str2内出现次数 /// <summary> /// 清除文本中的html脚本 /// </summary> /// <param name="Htmlstring">源文本</param> /// <returns>处理后的文本</returns> public static string CleanHTML(string Htmlstring) { //删除脚本 Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase); //删除HTML Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase); Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase); Htmlstring.Replace("<", ""); Htmlstring.Replace(">", ""); Htmlstring.Replace("\r\n", ""); Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim(); return Htmlstring; } #region 字符串拆分字符串 /// <summary> /// 根据字符串拆分字符串 /// </summary> /// <param name="strSource">要拆分的字符串</param> /// <param name="strSplit">拆分符</param> /// <returns></returns> public static string[] StringSplit(string strSource, string strSplit) { string[] strtmp = new string[1]; int index = strSource.IndexOf(strSplit, 0); if (index < 0) { strtmp[0] = strSource; return strtmp; } else { strtmp[0] = strSource.Substring(0, index); return StringSplit(strSource.Substring(index + strSplit.Length), strSplit, strtmp); } } /// <summary> /// 采用递归将字符串分割成数组 /// </summary> /// <param name="strSource"></param> /// <param name="strSplit"></param> /// <param name="attachArray"></param> /// <returns></returns> private static string[] StringSplit(string strSource, string strSplit, string[] attachArray) { string[] strtmp = new string[attachArray.Length + 1]; attachArray.CopyTo(strtmp, 0); int index = strSource.IndexOf(strSplit, 0); if (index < 0) { strtmp[attachArray.Length] = strSource; return strtmp; } else { strtmp[attachArray.Length] = strSource.Substring(0, index); return StringSplit(strSource.Substring(index + strSplit.Length), strSplit, strtmp); } } #endregion /// <summary> /// 获取字符串str2在字符串str1中出现的次数 /// </summary> /// <param name="str1"></param> /// <param name="str2"></param> /// <returns>出现次数</returns> public int GetAppearTimes(string str1, string str2) { return Regex.Matches(str1, str2).Count; } /// <summary> /// 截取字符串，如果有字符(字母,数字等等)会自动处理 /// </summary> /// <param name="inputString">源文本</param> /// <param name="len">长度</param> /// <returns>处理后的文本</returns> public static string CutString(string inputString, int len) { if (string.IsNullOrEmpty(inputString)) return ""; inputString = CleanHTML(inputString); ASCIIEncoding ascii = new ASCIIEncoding(); int tempLen = 0; string tempString = ""; byte[] s = ascii.GetBytes(inputString); for (int i = 0; i < s.Length; i++) { if ((int)s[i] == 63) { tempLen += 2; } else { tempLen += 1; } try { tempString += inputString.Substring(i, 1); } catch { break; } if (tempLen > len) break; } //如果截过则加上半个省略号 byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString); if (mybyte.Length > len) tempString += "…"; return tempString; } #endregion #region url系列 获取参数字典，替换参数 /// <summary> /// 获取一个url中字符串中？后面的值，以Dictionary<key, value>形式返回 /// </summary> /// <param name="url">url</param> /// <returns>Dictionary<key, value>形式返回</returns> public static Dictionary<string, string> GetParams(string url) { int intPos = url.IndexOf("?"); if (url == null || url.Length < 1 || intPos < 1) { return null; } else { Dictionary<string, string> dt = new Dictionary<string, string>(); string strRight = url.Substring(intPos + 1); string[] arrPram = StringSplit(strRight, "&"); for (int i = 0; i < arrPram.Length; i++) { string[] arrPramName = StringSplit(arrPram[i], "="); dt.Add(arrPramName[0].ToLower(), arrPramName[1].ToLower()); } return dt; } } /// <summary> /// 用指定的key：value 替换目标url的参数是叫key的值，如果不存在，就添加一个参数key=value /// </summary> /// <param name="url">目标url</param> /// <param name="key">目标参数key名字</param> /// <param name="value">新的Value</param> /// <returns>替换后新的url</returns> public static string ReplaceUrlParam(string url, string key, string value) { string new_returnurl = ""; Dictionary<string, string> d = Safe.GetParams(url.ToLower()); d = d ?? new Dictionary<string, string>(); if (d.ContainsKey(key)) { d.Remove(key); d.Add(key, value); } else { d.Add(key, value); } if (d != null && d.Count > 0) { int i = 0; foreach (KeyValuePair<string, string> kv in d) { if (i == 0) { new_returnurl += "?" + kv.Key + "=" + kv.Value; } else { new_returnurl += "&" + kv.Key + "=" + kv.Value; } i++; } } new_returnurl = url.Split('?')[0] + new_returnurl; return new_returnurl; } #endregion #region Random随机数系列 /// <summary> /// 获取指定位数的随机数 /// </summary> /// <param name="N">随机数的位数</param> /// <returns></returns> public static string RandCode(int N) { char[] arrChar = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' }; StringBuilder num = new StringBuilder(); Random rnd = new Random(Guid.NewGuid().GetHashCode()); for (int i = 0; i < N; i++) { num.Append(arrChar[rnd.Next(0, arrChar.Length)].ToString()); } return num.ToString(); } /// <summary> /// 获取一个随机数 /// </summary> /// <param name="min">最小值</param> /// <param name="max">最大值</param> /// <returns></returns> public static int GetRandomNumber(int min, int max) { int rtn = 0; Random r = new Random(); byte[] buffer = Guid.NewGuid().ToByteArray(); int iSeed = BitConverter.ToInt32(buffer, 0); r = new Random(iSeed); rtn = r.Next(min, max + 1); return rtn; } /// <summary> /// 获取指定个数的随机数（绝对不重复） /// </summary> /// <param name="count">随机数的个数</param> /// <param name="min">最小值</param> /// <param name="max">最大值</param> /// <returns></returns> public static List<int> GetRandomList(int count, int min, int max) { if (max - min + 1 < count) { return null; } List<int> rs = new List<int>(); while (rs.Count < count) { int r = GetRandomNumber(min, max); if (rs.Where(m => m == r).Count() <= 0) { rs.Add(r); } } return rs; } #endregion }} 1 0
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