685 lines
19 KiB
C#
685 lines
19 KiB
C#
/*******************************************************************************
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* Copyright © 2016 HT.Cloud.Framework 版权所有
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* Author: HT.Cloud
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* Description: WaterCloud快速开发平台
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* Website：
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*********************************************************************************/
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using Microsoft.AspNetCore.Http;
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using System;
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using System.Collections.Generic;
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using System.Net;
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using System.Net.Http;
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using System.Net.Sockets;
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using System.Text;
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using System.Text.Encodings.Web;
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using System.Text.RegularExpressions;
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using System.Web;
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namespace HT.Cloud.Code
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{
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public class WebHelper
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{
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#region ResolveUrl(解析相对Url)
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/// <summary>
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/// 解析相对Url
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/// </summary>
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/// <param name="relativeUrl">相对Url</param>
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public static string ResolveUrl(string relativeUrl)
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{
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if (string.IsNullOrWhiteSpace(relativeUrl))
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return string.Empty;
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relativeUrl = relativeUrl.Replace("\\", "/");
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if (relativeUrl.StartsWith("/"))
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return relativeUrl;
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if (relativeUrl.Contains("://"))
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return relativeUrl;
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return VirtualPathUtility.ToAbsolute(relativeUrl);
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}
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#endregion ResolveUrl(解析相对Url)
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#region HtmlEncode(对html字符串进行编码)
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/// <summary>
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/// 对html字符串进行编码
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/// </summary>
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/// <param name="html">html字符串</param>
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public static string HtmlEncode(string html)
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{
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return HttpUtility.HtmlEncode(html);
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}
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/// <summary>
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/// 对html字符串进行解码
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/// </summary>
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/// <param name="html">html字符串</param>
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public static string HtmlDecode(string html)
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{
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return HttpUtility.HtmlDecode(html);
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}
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#endregion HtmlEncode(对html字符串进行编码)
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#region UrlEncode(对Url进行编码)
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/// <summary>
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/// 对Url进行编码
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/// </summary>
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/// <param name="url">url</param>
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/// <param name="isUpper">编码字符是否转成大写,范例,"http://"转成"http%3A%2F%2F"</param>
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public static string UrlEncode(string url, bool isUpper = false)
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{
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return UrlEncode(url, Encoding.UTF8, isUpper);
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}
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/// <summary>
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/// 对Url进行编码
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/// </summary>
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/// <param name="url">url</param>
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/// <param name="encoding">字符编码</param>
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/// <param name="isUpper">编码字符是否转成大写,范例,"http://"转成"http%3A%2F%2F"</param>
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public static string UrlEncode(string url, Encoding encoding, bool isUpper = false)
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{
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var result = HttpUtility.UrlEncode(url, encoding);
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if (!isUpper)
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return result;
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return GetUpperEncode(result);
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}
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/// <summary>
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/// 获取大写编码字符串
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/// </summary>
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private static string GetUpperEncode(string encode)
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{
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var result = new StringBuilder();
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int index = int.MinValue;
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for (int i = 0; i < encode.Length; i++)
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{
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string character = encode[i].ToString();
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if (character == "%")
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index = i;
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if (i - index == 1 || i - index == 2)
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character = character.ToUpper();
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result.Append(character);
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}
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return result.ToString();
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}
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#endregion UrlEncode(对Url进行编码)
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#region UrlDecode(对Url进行解码)
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/// <summary>
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/// 对Url进行解码,对于javascript的encodeURIComponent函数编码参数,应使用utf-8字符编码来解码
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/// </summary>
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/// <param name="url">url</param>
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public static string UrlDecode(string url)
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{
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return HttpUtility.UrlDecode(url);
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}
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/// <summary>
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/// 对Url进行解码,对于javascript的encodeURIComponent函数编码参数,应使用utf-8字符编码来解码
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/// </summary>
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/// <param name="url">url</param>
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/// <param name="encoding">字符编码,对于javascript的encodeURIComponent函数编码参数,应使用utf-8字符编码来解码</param>
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public static string UrlDecode(string url, Encoding encoding)
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{
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return HttpUtility.UrlDecode(url, encoding);
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}
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#endregion UrlDecode(对Url进行解码)
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#region Session操作
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/// <summary>
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/// 写Session
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/// </summary>
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/// <param name="key">Session的键名</param>
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/// <param name="value">Session的键值</param>
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public static void WriteSession(string key, string value)
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{
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if (key.IsEmpty())
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return;
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GlobalContext.HttpContext?.Session.SetString(key, value);
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}
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/// <summary>
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/// 读取Session的值
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/// </summary>
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/// <param name="key">Session的键名</param>
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public static string GetSession(string key)
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{
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if (string.IsNullOrEmpty(key))
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{
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return string.Empty;
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}
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return GlobalContext.HttpContext?.Session.GetString(key) ?? "";
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}
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/// <summary>
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/// 删除指定Session
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/// </summary>
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/// <param name="key">Session的键名</param>
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public static void RemoveSession(string key)
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{
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if (string.IsNullOrEmpty(key))
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{
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return;
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}
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GlobalContext.HttpContext?.Session.Remove(key);
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}
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#endregion Session操作
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#region Cookie操作
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/// <summary>
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/// 写cookie值
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/// </summary>
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/// <param name="strName">名称</param>
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/// <param name="strValue">值</param>
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public static void WriteCookie(string strName, string strValue, CookieOptions option = null)
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{
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if (option == null)
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{
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option = new CookieOptions();
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option.Expires = DateTime.Now.AddDays(30);
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}
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GlobalContext.HttpContext?.Response.Cookies.Append(strName, strValue, option);
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}
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/// <summary>
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/// 写cookie值
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/// </summary>
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/// <param name="strName">名称</param>
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/// <param name="strValue">值</param>
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/// <param name="strValue">过期时间(分钟)</param>
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public static void WriteCookie(string strName, string strValue, int expires)
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{
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CookieOptions option = new CookieOptions();
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option.Expires = DateTime.Now.AddMinutes(expires);
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GlobalContext.HttpContext?.Response.Cookies.Append(strName, strValue, option);
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}
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/// <summary>
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/// 读cookie值
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/// </summary>
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/// <param name="strName">名称</param>
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/// <returns>cookie值</returns>
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public static string GetCookie(string strName)
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{
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return GlobalContext.HttpContext?.Request.Cookies[strName] ?? "";
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}
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/// <summary>
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/// 删除Cookie对象
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/// </summary>
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/// <param name="CookiesName">Cookie对象名称</param>
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public static void RemoveCookie(string CookiesName)
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{
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GlobalContext.HttpContext?.Response.Cookies.Delete(CookiesName);
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}
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#endregion Cookie操作
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#region 去除HTML标记
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/// <summary>
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/// 去除HTML标记
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/// </summary>
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/// <param name="NoHTML">包括HTML的源码 </param>
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/// <returns>已经去除后的文字</returns>
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public static string NoHtml(string Htmlstring)
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{
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//删除脚本
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Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
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//删除HTML
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Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"…", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"—", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"“", "", RegexOptions.IgnoreCase);
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Htmlstring.Replace("<", "");
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Htmlstring = Regex.Replace(Htmlstring, @"”", "", RegexOptions.IgnoreCase);
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Htmlstring.Replace(">", "");
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Htmlstring.Replace("\r\n", "");
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Htmlstring = HtmlEncoder.Default.Encode(Htmlstring).Trim();
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return Htmlstring;
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}
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#endregion 去除HTML标记
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#region 格式化文本（防止SQL注入）
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/// <summary>
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/// 格式化文本（防止SQL注入）
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static string Formatstr(string html)
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{
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System.Text.RegularExpressions.Regex regex1 = new System.Text.RegularExpressions.Regex(@"<script[\s\S]+</script *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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System.Text.RegularExpressions.Regex regex2 = new System.Text.RegularExpressions.Regex(@" href *= *[\s\S]*script *:", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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System.Text.RegularExpressions.Regex regex3 = new System.Text.RegularExpressions.Regex(@" on[\s\S]*=", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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System.Text.RegularExpressions.Regex regex4 = new System.Text.RegularExpressions.Regex(@"<iframe[\s\S]+</iframe *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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System.Text.RegularExpressions.Regex regex5 = new System.Text.RegularExpressions.Regex(@"<frameset[\s\S]+</frameset *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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System.Text.RegularExpressions.Regex regex10 = new System.Text.RegularExpressions.Regex(@"select", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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System.Text.RegularExpressions.Regex regex11 = new System.Text.RegularExpressions.Regex(@"update", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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System.Text.RegularExpressions.Regex regex12 = new System.Text.RegularExpressions.Regex(@"delete", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
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html = regex1.Replace(html, ""); //过滤<script></script>标记
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html = regex2.Replace(html, ""); //过滤href=javascript: (<A>) 属性
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html = regex3.Replace(html, " _disibledevent="); //过滤其它控件的on...事件
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html = regex4.Replace(html, ""); //过滤iframe
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html = regex10.Replace(html, "s_elect");
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html = regex11.Replace(html, "u_pudate");
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html = regex12.Replace(html, "d_elete");
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html = html.Replace("'", "’");
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html = html.Replace(" ", " ");
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return html;
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}
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#endregion 格式化文本（防止SQL注入）
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#region 当前连接
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public static HttpContext HttpContext
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{
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get { return GlobalContext.HttpContext; }
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}
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#endregion 当前连接
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#region 网络信息
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public static string Ip
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{
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get
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{
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string result = string.Empty;
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try
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{
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if (HttpContext != null)
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{
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result = GetWebClientIp();
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}
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if (string.IsNullOrEmpty(result))
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{
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result = GetLanIp();
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}
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}
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catch (Exception)
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{
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return string.Empty;
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}
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return result;
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}
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}
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private static string GetWebClientIp()
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{
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try
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{
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string ip = GetWebRemoteIp();
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foreach (var hostAddress in Dns.GetHostAddresses(ip))
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{
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if (hostAddress.AddressFamily == AddressFamily.InterNetwork)
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{
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return hostAddress.ToString();
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}
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else if (hostAddress.AddressFamily == AddressFamily.InterNetworkV6)
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{
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return hostAddress.MapToIPv4().ToString();
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}
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}
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}
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catch (Exception)
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{
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return string.Empty;
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}
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return string.Empty;
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}
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public static string GetLanIp()
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{
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try
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{
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foreach (var hostAddress in Dns.GetHostAddresses(Dns.GetHostName()))
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{
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if (hostAddress.AddressFamily == AddressFamily.InterNetwork)
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{
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return hostAddress.ToString();
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}
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else if (hostAddress.AddressFamily == AddressFamily.InterNetworkV6)
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{
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return hostAddress.MapToIPv4().ToString();
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}
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}
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}
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catch (Exception)
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{
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return string.Empty;
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}
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return string.Empty;
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}
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public static string GetWanIp()
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{
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string ip = string.Empty;
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try
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{
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string url = "http://www.net.cn/static/customercare/yourip.asp";
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string html = "";
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using (var client = new HttpClient())
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{
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var reponse = client.GetAsync(url).GetAwaiter().GetResult();
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reponse.EnsureSuccessStatusCode();
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html = reponse.Content.ReadAsStringAsync().GetAwaiter().GetResult();
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}
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if (!string.IsNullOrEmpty(html))
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{
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ip = WebHelper.Resove(html, "<h2>", "</h2>");
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}
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}
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catch (Exception)
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{
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return string.Empty;
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}
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return ip;
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}
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private static string GetWebRemoteIp()
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{
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try
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{
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string ip = HttpContext?.Connection?.RemoteIpAddress.ParseToString();
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if (HttpContext != null && HttpContext.Request != null)
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{
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if (HttpContext.Request.Headers.ContainsKey("X-Real-IP"))
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{
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ip = HttpContext.Request.Headers["X-Real-IP"].ToString();
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}
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if (HttpContext.Request.Headers.ContainsKey("X-Forwarded-For"))
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{
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ip = HttpContext.Request.Headers["X-Forwarded-For"].ToString();
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}
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}
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return ip;
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}
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catch (Exception)
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{
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return string.Empty;
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}
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}
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public static string UserAgent
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{
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get
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{
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string userAgent = string.Empty;
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try
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{
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userAgent = HttpContext?.Request?.Headers["User-Agent"];
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}
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catch (Exception ex)
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{
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LogHelper.WriteWithTime(ex);
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}
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return userAgent;
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}
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}
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public static string GetOSVersion()
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{
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var osVersion = string.Empty;
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try
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{
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var userAgent = UserAgent;
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if (userAgent.Contains("NT 10"))
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{
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osVersion = "Windows 10";
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}
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else if (userAgent.Contains("NT 6.3"))
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{
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osVersion = "Windows 8";
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}
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else if (userAgent.Contains("NT 6.1"))
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{
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osVersion = "Windows 7";
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}
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else if (userAgent.Contains("NT 6.0"))
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{
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osVersion = "Windows Vista/Server 2008";
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}
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else if (userAgent.Contains("NT 5.2"))
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{
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osVersion = "Windows Server 2003";
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}
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else if (userAgent.Contains("NT 5.1"))
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{
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osVersion = "Windows XP";
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}
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else if (userAgent.Contains("NT 5"))
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{
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osVersion = "Windows 2000";
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}
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else if (userAgent.Contains("NT 4"))
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{
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osVersion = "Windows NT4";
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}
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else if (userAgent.Contains("Android"))
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{
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osVersion = "Android";
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}
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else if (userAgent.Contains("Me"))
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{
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osVersion = "Windows Me";
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}
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else if (userAgent.Contains("98"))
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{
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osVersion = "Windows 98";
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}
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else if (userAgent.Contains("95"))
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{
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osVersion = "Windows 95";
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}
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else if (userAgent.Contains("Mac"))
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{
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osVersion = "Mac";
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}
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else if (userAgent.Contains("Unix"))
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{
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osVersion = "UNIX";
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}
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else if (userAgent.Contains("Linux"))
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{
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osVersion = "Linux";
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}
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else if (userAgent.Contains("SunOS"))
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{
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osVersion = "SunOS";
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}
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}
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catch (Exception ex)
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{
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LogHelper.WriteWithTime(ex);
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}
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return osVersion;
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}
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#endregion 网络信息
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#region IP位置查询
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||
public static string GetIpLocation(string ipAddress)
|
||
{
|
||
string ipLocation = "未知";
|
||
try
|
||
{
|
||
if (!IsInnerIP(ipAddress))
|
||
{
|
||
ipLocation = GetIpLocationFromPCOnline(ipAddress);
|
||
}
|
||
else
|
||
{
|
||
ipLocation = "本地局域网";
|
||
}
|
||
}
|
||
catch (Exception)
|
||
{
|
||
return ipLocation;
|
||
}
|
||
return ipLocation;
|
||
}
|
||
|
||
private static string GetIpLocationFromPCOnline(string ipAddress)
|
||
{
|
||
string ipLocation = "未知";
|
||
try
|
||
{
|
||
var res = "";
|
||
using (var client = new HttpClient())
|
||
{
|
||
var URL = "http://whois.pconline.com.cn/ip.jsp?ip=" + ipAddress;
|
||
var response = client.GetAsync(URL).GetAwaiter().GetResult();
|
||
response.EnsureSuccessStatusCode();
|
||
res = response.Content.ReadAsStringAsync().GetAwaiter().GetResult();
|
||
}
|
||
if (!string.IsNullOrEmpty(res))
|
||
{
|
||
ipLocation = res.Trim();
|
||
}
|
||
}
|
||
catch
|
||
{
|
||
ipLocation = "未知";
|
||
}
|
||
return ipLocation;
|
||
}
|
||
|
||
#endregion IP位置查询
|
||
|
||
#region 判断是否是外网IP
|
||
|
||
public static bool IsInnerIP(string ipAddress)
|
||
{
|
||
bool isInnerIp = false;
|
||
long ipNum = GetIpNum(ipAddress);
|
||
/**
|
||
私有IP：A类 10.0.0.0-10.255.255.255
|
||
B类 172.16.0.0-172.31.255.255
|
||
C类 192.168.0.0-192.168.255.255
|
||
当然，还有127这个网段是环回地址
|
||
**/
|
||
long aBegin = GetIpNum("10.0.0.0");
|
||
long aEnd = GetIpNum("10.255.255.255");
|
||
long bBegin = GetIpNum("172.16.0.0");
|
||
long bEnd = GetIpNum("172.31.255.255");
|
||
long cBegin = GetIpNum("192.168.0.0");
|
||
long cEnd = GetIpNum("192.168.255.255");
|
||
isInnerIp = IsInner(ipNum, aBegin, aEnd) || IsInner(ipNum, bBegin, bEnd) || IsInner(ipNum, cBegin, cEnd) || ipAddress.Equals("127.0.0.1");
|
||
return isInnerIp;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 把IP地址转换为Long型数字
|
||
/// </summary>
|
||
/// <param name="ipAddress">IP地址字符串</param>
|
||
/// <returns></returns>
|
||
private static long GetIpNum(string ipAddress)
|
||
{
|
||
string[] ip = ipAddress.Split('.');
|
||
long a = int.Parse(ip[0]);
|
||
long b = int.Parse(ip[1]);
|
||
long c = int.Parse(ip[2]);
|
||
long d = int.Parse(ip[3]);
|
||
|
||
long ipNum = a * 256 * 256 * 256 + b * 256 * 256 + c * 256 + d;
|
||
return ipNum;
|
||
}
|
||
|
||
private static bool IsInner(long userIp, long begin, long end)
|
||
{
|
||
return (userIp >= begin) && (userIp <= end);
|
||
}
|
||
|
||
#endregion 判断是否是外网IP
|
||
|
||
#region html处理
|
||
|
||
/// <summary>
|
||
/// Get part Content from HTML by apply prefix part and subfix part
|
||
/// </summary>
|
||
/// <param name="html">souce html</param>
|
||
/// <param name="prefix">prefix</param>
|
||
/// <param name="subfix">subfix</param>
|
||
/// <returns>part content</returns>
|
||
public static string Resove(string html, string prefix, string subfix)
|
||
{
|
||
int inl = html.IndexOf(prefix);
|
||
if (inl == -1)
|
||
{
|
||
return null;
|
||
}
|
||
inl += prefix.Length;
|
||
int inl2 = html.IndexOf(subfix, inl);
|
||
string s = html.Substring(inl, inl2 - inl);
|
||
return s;
|
||
}
|
||
|
||
public static string ResoveReverse(string html, string subfix, string prefix)
|
||
{
|
||
int inl = html.IndexOf(subfix);
|
||
if (inl == -1)
|
||
{
|
||
return null;
|
||
}
|
||
string subString = html.Substring(0, inl);
|
||
int inl2 = subString.LastIndexOf(prefix);
|
||
if (inl2 == -1)
|
||
{
|
||
return null;
|
||
}
|
||
string s = subString.Substring(inl2 + prefix.Length, subString.Length - inl2 - prefix.Length);
|
||
return s;
|
||
}
|
||
|
||
public static List<string> ResoveList(string html, string prefix, string subfix)
|
||
{
|
||
List<string> list = new List<string>();
|
||
int index = prefix.Length * -1;
|
||
do
|
||
{
|
||
index = html.IndexOf(prefix, index + prefix.Length);
|
||
if (index == -1)
|
||
{
|
||
break;
|
||
}
|
||
index += prefix.Length;
|
||
int index4 = html.IndexOf(subfix, index);
|
||
string s78 = html.Substring(index, index4 - index);
|
||
list.Add(s78);
|
||
}
|
||
while (index > -1);
|
||
return list;
|
||
}
|
||
|
||
#endregion html处理
|
||
}
|
||
} |