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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.SessionState;
using System.IO;
using System.Text.RegularExpressions;
using System.Collections;
namespace BP.Difference
{
public static class HttpContextHelper
{
/// <summary>
/// 获取当前的HttpContext
/// </summary>
public static HttpContext Current
{
get
{
return HttpContext.Current;
}
}
/// <summary>
/// 获取当前的 Session
/// </summary>
public static HttpSessionState Session
{
get
{
return Current.Session;
}
}
public static string SessionID
{
get
{
return Session.SessionID;
}
}
public static void SessionClear()
{
Session.Clear();
}
/// <summary>
/// 获取当前的 Request
/// </summary>
public static HttpRequest Request
{
get
{
return Current.Request;
}
}
/// <summary>
/// 获取当前的 Response
/// </summary>
public static HttpResponse Response
{
get
{
return Current.Response;
}
}
public static void ResponseWrite(string content)
{
Response.Write(content);
}
public static void ResponseWriteString(string content, Encoding encoding)
{
Response.ContentType = "text/html";
Response.ContentEncoding = encoding;
Response.Write(content);
Response.End();
}
public static void ResponseWriteJson(string json, Encoding encoding)
{
Response.ContentType = "application/json";
Response.ContentEncoding = encoding;
Response.Write(json);
Response.End();
}
public static void ResponseWriteScript(string script, Encoding encoding)
{
Response.ContentType = "application/javascript";
Response.ContentEncoding = encoding;
Response.Write(script);
Response.End();
}
/// <summary>
/// 向Response中写入文件数据
/// </summary>
/// <param name="fileData">文件数据,字节流</param>
/// <param name="fileName">客户端显示的文件名</param>
public static void ResponseWriteFile(byte[] fileData, string fileName, string contentType = "application/octet-stream")
{
Response.ContentType = String.Format("{0};charset=utf8", contentType);
// 在Response的Header中设置下载文件的文件名这样客户端浏览器才能正确显示下载的文件名
// 注意这里要用HttpUtility.UrlEncode编码文件名否则有些浏览器可能会显示乱码文件名
var contentDisposition = "attachment;" + "filename=" + HttpUtility.UrlEncode(fileName, Encoding.UTF8);
// Response.Headers.Add("Content-Disposition", contentDisposition); IIS 7之前的版本可能不支持此写法
Response.AddHeader("Content-Disposition", contentDisposition);
Response.AddHeader("Code", "OK");
// 在Response的Header中设置下载文件的大小这样客户端浏览器才能正确显示下载的进度
Response.AddHeader("Content-Length", fileData.Length.ToString());
Response.BinaryWrite(fileData);
Response.End();
Response.Close();
}
/// <summary>
/// 向Response中写入文件
/// </summary>
/// <param name="filePath">文件的完整路径,含文件名</param>
/// <param name="clientFileName">客户端显示的文件名。若为空自动从filePath参数中提取文件名。</param>
public static void ResponseWriteFile(string filePath, string clientFileName = null, string contentType = "application/octet-stream")
{
if (String.IsNullOrEmpty(clientFileName))
clientFileName = Path.GetFileName(filePath);
Response.AppendHeader("Content-Disposition", "attachment;filename=" + clientFileName);
Response.AddHeader("Code", "OK");
Response.ContentEncoding = Encoding.UTF8;
Response.ContentType = String.Format("{0};charset=utf8", contentType);
Response.WriteFile(filePath);
Response.End();
Response.Close();
}
public static void ResponseWriteHeader(string key, string stringvalues)
{
Response.AddHeader(key, stringvalues);
}
public static void ResponseClear()
{
Response.Clear();
}
public static void ResponseAddHeader(string name, string value)
{
if (value.Count(c => Convert.ToInt32(c) > 128) > 0)
value = HttpUtility.UrlEncode(value, Encoding.UTF8);
Response.Headers.Add(name, value);
}
/// <summary>
/// 添加cookie
/// </summary>
/// <param name="cookieValues">Dictionary</param>
/// <param name="expires"></param>
/// <param name="cookieName">.net core 中无需传此参数,传了也会被忽略。.net framework中此参数必填</param>
public static void ResponseCookieAdd(Dictionary<string, string> cookieValues, DateTime? expires = null, string cookieName = null)
{
HttpCookie cookie = new HttpCookie(cookieName);
if (expires != null)
cookie.Expires = expires.Value;
foreach (var d in cookieValues)
cookie.Values.Add(d.Key, d.Value);
Response.Cookies.Add(cookie);
}
public static void AddCookie(string cookieName, string keyName, string value)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[cookieName];
//如果cookie=null则新建一个cookie
if (cookie == null)
cookie = new HttpCookie(HttpUtility.UrlEncode(cookieName));
//如果该键不存在,则新建一个键值并赋值;否则直接赋值
if (string.IsNullOrEmpty(cookie.Values[keyName]))
cookie.Values.Add(keyName, HttpUtility.UrlEncode(value));
else
cookie.Values[keyName] = HttpUtility.UrlEncode(value);
Response.AppendCookie(cookie);
}
/// <summary>
/// 删除指定的键值的cookie。
/// </summary>
/// <param name="cookieKeys"></param>
/// <param name="cookieName">.net core中无需此参数传了也会被忽略。net framework中此参数必填</param>
public static void ResponseCookieDelete(IEnumerable<string> cookieKeys, string cookieName)
{
HttpCookie cookie = new HttpCookie(cookieName);
foreach (var key in cookieKeys)
cookie.Values.Add(key, String.Empty);
Response.Cookies.Add(cookie);
}
public static string RequestCookieGet(string key, string cookieName)
{
HttpCookie cookie = Request.Cookies.Get(cookieName);
if (cookie == null)
return null;
return cookie[key];
}
public static string RequestParams(string key)
{
return Request.Params[key];
}
public static List<string> RequestQueryStringKeys
{
get
{
List<string> keys = new List<string>();
keys.AddRange(Request.QueryString.AllKeys);
return keys;
}
}
public static string[] RequestParamKeys
{
get
{
return Request.QueryString.AllKeys.Union(Request.Form.AllKeys).ToArray();
}
}
public static string RequestRawUrl
{
get
{
return Request.RawUrl;
}
}
public static string RequestUrlHost
{
get
{
return Request.Url.Host;
}
}
public static string RequestApplicationPath
{
get
{
return Request.ApplicationPath;
}
}
public static string RequestUrlAuthority
{
get
{
return Request.Url.Authority;
}
}
public static string RequestQueryString(string key)
{
return Request.QueryString[key];
}
public static string SessionGetString(string key)
{
return Session[key] as string;
}
/// <summary>
/// 将键值对添加到Session中
/// </summary>
/// <typeparam name="T"></peparam>
/// <param name="session"></param>
/// <param name="key"></param>
/// <param name="value"></param>
public static void SessionSet<T>(string key, T value)
{
Session[key] = value;
}
/// <summary>
/// 根据键获取Session中值
/// 注意使用的JsonConvert进行的序列化因此其中不包括类型信息。若子类型B的对象b用其父类型A进行Get那么会丢失子类型部分的数据。
/// </summary>
/// <typeparam name="T"></太阳peparam>
/// <param name="session"></param>
/// <param name="key"></param>
/// <returns></returns>
public static T SessionGet<T>(string key)
{
//lims出现
if (Session == null)
return default(T);
return (T)Session[key];
}
public static void SessionSet(string key, object value)
{
Session[key] = value;
}
public static object SessionGet(string key)
{
return Session[key];
}
public static string CurrentSessionID
{
get
{
return Session.SessionID;
}
}
public static int RequestFilesCount
{
get
{
return Current.Request.Files.Count;
}
}
public static long RequestFileLength(int key)
{
return Current.Request.Files[key].ContentLength;
}
public static long RequestFileLength(HttpPostedFile file)
{
return file.ContentLength;
}
public static HttpPostedFile RequestFiles(int key)
{
return Current.Request.Files[key];
}
public static HttpFileCollection RequestFiles()
{
return Current.Request.Files;
}
public static Stream RequestFileStream(int key)
{
return Current.Request.Files[key].InputStream;
}
/// <summary>
/// 文件上传
/// </summary>
/// <param name="filePath"></param>
public static void UploadFile(string filePath)
{
try
{
var filelist = HttpContextHelper.Current.Request.Files;
if (filelist == null || filelist.Count == 0)
{
throw new NotImplementedException("没有上传文件");
}
HttpPostedFile f = filelist[0];
// 写入文件
f.SaveAs(filePath);
}
catch (Exception ex)
{
throw new NotImplementedException(ex.Message);
}
}
public static void UploadFile(HttpPostedFile file, string filePath)
{
try
{
// 写入文件
file.SaveAs(filePath);
}
catch (Exception ex)
{
throw new NotImplementedException(ex.Message);
}
}
public static string UrlDecode(string Url)
{
return Current.Server.UrlDecode(Url);
}
/// <summary>
/// 请求的物理路径
/// </summary>
public static string PhysicalApplicationPath
{
get
{
return Request.PhysicalApplicationPath;
}
}
public static string RequestUserAgent
{
get
{
return Request.UserAgent;
}
}
// regex from http://detectmobilebrowsers.com/
private static readonly Regex b = new Regex(@"(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline);
private static readonly Regex v = new Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-", RegexOptions.IgnoreCase | RegexOptions.Multiline);
public static bool RequestIsFromMobile
{
get
{
var userAgent = RequestUserAgent;
if ((b.IsMatch(userAgent) || v.IsMatch(userAgent.Substring(0, 4))))
{
return true;
}
return false;
}
}
public static string RequestBrowser
{
get
{
return Request.Browser.Browser;
}
}
}
}