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/* ------------------------------------------------------------------- 版权所有: 使用与转载需注明出处 by franco Generator: vs2008 Description: source code of "isports.Common" Our Website: ------------------------------------------------------------------- */ using System; using System.Collections.Generic; using System.Text; using System.Web; using NBear.Data; using System.Configuration; namespace isports.Common { /// <summary> /// 对常用方法重新进行封装，及获取一些常用环境变量 /// </summary> public class Fetch { #region Fields private static readonly string mTablePrefix; public static readonly string SiteMapPath; #endregion public static T Get<T>(string name) { T value = default(T); object str = HttpContext.Current.Request.QueryString[name]; if (str != null) { if (value is ValueType) { System.Reflection.MethodInfo parse = typeof(T).GetMethod("Parse", new Type[] { typeof(string) }); if (parse != null) { try { value = (T)parse.Invoke(null, new object[] { str.ToString() }); } catch { } } } else if (typeof(T) == typeof(string)) { value = (T)str; } } return value; } public static T Get<T>(string name, T defaultValue) { T value = defaultValue; object str = HttpContext.Current.Request.QueryString[name]; if (str != null) { if (value is ValueType) { System.Reflection.MethodInfo parse = typeof(T).GetMethod("Parse", new Type[] { typeof(string) }); if (parse != null) { try { value = (T)parse.Invoke(null, new object[] { str.ToString() }); } catch { } } } else if (typeof(T) == typeof(string)) { value = (T)str; } } return value; } #region 构造函数,初始化变量前缀等。 static Fetch() { //mTablePrefix = ApplicationSettings.Get("TablePrefix"); //if (null == mTablePrefix || string.Empty == mTablePrefix) //{ // mTablePrefix = "meili_"; //} //else //{ // mTablePrefix = mTablePrefix.Replace("'", "''"); //} //SiteMapPath = Fetch.MapPath("."); } #endregion #region 获取网站的GateWay对象 public static Gateway GetWay() { Gateway gw = null; try { gw = new Gateway(DatabaseType.SqlServer, Common.Text.DecryptDES(ConfigurationManager.ConnectionStrings["WebSiteConnectionString"].ConnectionString, "mleasy09")); } catch { //gw = new Gateway(DatabaseType.SqlServer9, "server=" + Text.DecryptDES(AppCommon.SERVERIP, "mleasy09") + ";uid=" + Text.DecryptDES(AppCommon.USERID, "mleasy09") + ";pwd=" + Text.DecryptDES(AppCommon.PASSWORD, "mleasy09") + ";database=" + Text.DecryptDES(AppCommon.DATABASE, "mleasy09")); } return gw; } #endregion #region 获取页面提交的参数值，相当于 Request.Form public static string Post(string name) /// <summary> /// 获取页面提交的参数值，相当于 Request.Form /// </summary> public static string Post(string name) { string value = HttpContext.Current.Request.Form[name]; return value == null ? string.Empty : value.Trim(); } #endregion #region 获取页面地址的参数值，相当于 Request.QueryString public static string Get(string name) /// <summary> /// 获取页面地址的参数值，相当于 Request.QueryString /// </summary> public static string Get(string name) { string value = HttpContext.Current.Request.QueryString[name]; return value == null ? string.Empty : value.Trim(); } #endregion #region 获取页面地址的参数值并检查安全性，相当于 Request.QueryString public static string Get(string name, CheckGetEnum chkType) /// <summary> /// 获取页面地址的参数值并检查安全性，相当于 Request.QueryString /// chkType 有 CheckGetEnum.Int， CheckGetEnum.Safety两种类型， /// CheckGetEnum.Int 保证参数是数字型 /// CheckGetEnum.Safety 保证提交的参数值没有操作数据库的语句 /// </summary> public static string Get(string name, CheckGetEnum chkType) { string value = Get(name); bool isPass = false; switch (chkType) { default: isPass = true; break; case CheckGetEnum.Int: { try { int.Parse(value); isPass = RegExp.IsNumeric(value); } catch { isPass = false; } break; } case CheckGetEnum.Safety: isPass = RegExp.IsSafety(value); break; } if (!isPass) { new Terminator().Throw("地址栏中参数“" + name + "”的值不符合要求或具有潜在威胁，请不要手动修改URL。"); return string.Empty; } return value; } #endregion #region 跟踪调试输出一个对象 public static void Trace(object obj) /// <summary> /// 跟踪调试输出一个对象 /// </summary> public static void Trace(object obj) { HttpContext.Current.Response.Write(obj.ToString()); } #endregion #region 将相对地址转化为绝对地址，进一步封装和优化 Server.MapPath public static string MapPath(string path) /// <summary> /// 将相对地址转化为绝对地址，进一步封装和优化 Server.MapPath /// </summary> public static string MapPath(string path) { if (RegExp.IsPhysicalPath(path)) { return path; } if (null != HttpContext.Current) { if (!RegExp.IsRelativePath(path)) { return HttpContext.Current.Server.MapPath(path); } #if DEBUG if (null == HttpContext.Current) { throw new Exception("HttpContext.Current 为空引用"); } #endif return HttpContext.Current.Server.MapPath(PathUpSeek + "/" + path); } else if (SiteMapPath.Length > 0) { return Text.JoinString(SiteMapPath + "/" + path); } else { throw new Exception("HttpContext.Current 为空引用"); } } #endregion #region IP 地址字符串形式转换成长整型 public static long Ip2Int(string ip) /// <summary> /// IP 地址字符串形式转换成长整型 /// </summary> public static long Ip2Int(string ip) { if (!RegExp.IsIp(ip)) { return -1; } string[] arr = ip.Split('.'); long lng = long.Parse(arr[0]) * 16777216; lng += int.Parse(arr[1]) * 65536; lng += int.Parse(arr[2]) * 256; lng += int.Parse(arr[3]); return lng; } #endregion #region 获取客户端IP public static string UserIp /// <summary> /// 获取客户端IP /// </summary> public static string UserIp { get { string ip = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; if (ip == null || ip == string.Empty) { ip = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } if (!RegExp.IsIp(ip)) { return "Unknown"; } return ip; } } #endregion #region 获取访问者所使用的浏览器名 public static string UserBrowser /// <summary> /// 获取访问者所使用的浏览器名 /// </summary> public static string UserBrowser { get { string agent = HttpContext.Current.Request.UserAgent; if (agent == null || agent == string.Empty) return "Unknown"; agent = agent.ToLower(); HttpBrowserCapabilities bc = HttpContext.Current.Request.Browser; if (agent.IndexOf("firefox") >= 0 || agent.IndexOf("firebird") >= 0 || agent.IndexOf("myie") >= 0 || agent.IndexOf("opera") >= 0 || agent.IndexOf("netscape") >= 0 || agent.IndexOf("msie") >= 0 ) return bc.Browser + bc.Version; return "Unknown"; } } #endregion #region 获得网站域名 public static string ServerDomain /// <summary> /// 获得网站域名 /// </summary> public static string ServerDomain { get { string host = HttpContext.Current.Request.Url.Host.ToLower(); string[] arr = host.Split('.'); if (arr.Length < 3 || RegExp.IsIp(host)) { return host; } string domain = host.Remove(0, host.IndexOf(".") + 1); if (domain.StartsWith("com.") || domain.StartsWith("net.") || domain.StartsWith("org.") || domain.StartsWith("gov.")) { return host; } return domain; } } #endregion #region 获得当前路径 /// <summary> /// 获得当前路径 /// </summary> public static string CurrentPath { get { string path = HttpContext.Current.Request.Path; path = path.Substring(0, path.LastIndexOf("/")); if (path == "/") { return string.Empty; } return path; } } #endregion #region 获得网站虚拟根目录 public static string PathUpSeek /// <summary> /// 获得网站虚拟根目录 /// </summary> public static string PathUpSeek { get { string currentPath = CurrentPath; string lower_current_path = currentPath.ToLower(); #if DEBUG string[] arr = (Text.JoinString(ApplicationSettings.Get("PathUpSeek"), "|/Members|/Auction|/Ask|/News")).ToLower().Split('|'); #else string[] arr = (Text.JoinString(ApplicationSettings.Get("PathUpSeek"), "|/install|/upgrade")).ToLower().Split('|'); #endif foreach (string s in arr) { if (null == s || 0 == s.Length) { continue; } if (s[0] != '/') { continue; } if (lower_current_path.EndsWith(s)) { return currentPath.Remove(currentPath.Length - s.Length, s.Length); } } int indexof = currentPath.IndexOf("/templates/"); if (-1 != indexof) { return currentPath.Substring(0, indexof); } return currentPath; } } #endregion #region 获得当前URL public static string CurrentUrl /// <summary> /// 获得当前URL /// </summary> public static string CurrentUrl { get { return HttpContext.Current.Request.Url.ToString(); } } #endregion #region 获取当前请求的原始URL /// <summary> /// 获取当前请求的原始 URL /// </summary> public static string webCurrentUrl { get { return HttpContext.Current.Request.RawUrl.ToString(); } } #endregion #region 获得来源URL public static string Referrer /// <summary> /// 获得来源URL /// </summary> public static string Referrer { get { Uri uri = HttpContext.Current.Request.UrlReferrer; if (uri == null) { return string.Empty; } return Convert.ToString(uri); } } #endregion #region 是否从其他连接向本域名连接 public static bool IsPostFromAnotherDomain /// <summary> /// 是否从其他连接向本域名连接 /// </summary> public static bool IsPostFromAnotherDomain { get { if (HttpContext.Current.Request.HttpMethod == "GET") { return false; } return Referrer.IndexOf(ServerDomain) == -1; } } #endregion #region 是否从其他连接向本域名以POST方式提交表单 public static bool IsGetFromAnotherDomain /// <summary> /// 是否从其他连接向本域名以POST方式提交表单 /// </summary> public static bool IsGetFromAnotherDomain { get { if (HttpContext.Current.Request.HttpMethod == "POST") { return false; } return Referrer.IndexOf(ServerDomain) == -1; } } #endregion #region 是否被判断为机器人 public static bool IsRobots /// <summary> /// 是否被判断为机器人 /// </summary> public static bool IsRobots { get { return IsWebSearch(); } } #endregion #region 搜索引擎来源判断 public static bool IsWebSearch() /// <summary> /// 搜索引擎来源判断 /// </summary> private static string[] _WebSearchList = new string[] { "google", "isaac", "surveybot", "baiduspider", "yahoo", "yisou", "3721", "qihoo", "daqi", "ia_archiver", "p.arthur", "fast-webcrawler", "java", "microsoft-atl-native", "turnitinbot", "webgather", "sleipnir", "msn" }; public static bool IsWebSearch() { string user_agent = HttpContext.Current.Request.UserAgent; if (null == user_agent || string.Empty == user_agent) { return true; } else { user_agent = user_agent.ToLower(); } for (int i = 0; i < _WebSearchList.Length; i++) { if (-1 != user_agent.IndexOf(_WebSearchList[i])) { return true; } } return UserBrowser.Equals("Unknown"); } #endregion #region Url编码，相当于 Server.UrlEncode public static string UrlEncode(string url) /// <summary> /// Url编码，相当于 Server.UrlEncode /// </summary> public static string UrlEncode(string url) { return HttpContext.Current.Server.UrlEncode(url); } #endregion #region 返回论坛的物理路径，默认与网站同目录 public static string ForumDirectory() public static string ForumDirectory() { string path = System.Web.HttpContext.Current.Request.PhysicalApplicationPath; string[] p = path.Split("\\".ToCharArray()); int arrlength = p.Length; if (arrlength > 0) { path = ""; for (int i = 0; i < arrlength - 2; i++) { path += p[i] + "/"; } } return path + "bbs/"; } #endregion #region 属性 ///// <summary> ///// 变量前缀 ///// </summary> //public static string TablePrefix //{ // get // { // return mTablePrefix; // } //} ///// <summary> ///// 获取验证码文件的地址 ///// </summary> //public static string ValidateCodeFileName //{ // get // { // string file_name = Config.Settings["ValidateCodeFileName"]; // if (null == file_name || 0 == file_name.Length) // { // file_name = "image.aspx"; // } // return file_name; // } //} #endregion } } |
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