TelegramService/TelegramService.Bl/CnblogsBl.cs

using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Data;
using System.Net;
using System.Threading.Tasks;
using TelegramService.Bl;
using TelegramService.Entity;
using TelegramService.Help;
namespace TelegramServiceV6.Bl
{
    public class CnblogsBl
    {

        /// <summary>
        /// 发送 消息
        /// </summary>
        private async void SendTextMessage(string title, string author, string authorUrl, string time, string preview, string url)
        {
            try
            {
                string sHtml = "\r\n主  题：<b>" + title + "</b>\n";
                sHtml += "作  者：<a href=\"" + authorUrl + "\">" + author + "</a>\n";
                sHtml += "时  间：<b>" + time + "</b>\n";
                sHtml += "预  览：<b>" + preview + "</b>\n";
                sHtml += "链  接：<a href=\"" + url + "\">" + url + "</a>\n";
                JObject oObj = new JObject();
                oObj.Add("chat_id", "-1001341062469");
                oObj.Add("text", sHtml);
                oObj.Add("parse_mode", "HTML");
                //是否显示url 预览
                oObj.Add("disable_web_page_preview", "TRUE");
                SendMessageBl.SendTg("https://api.telegram.org/bot1879430057:AAHtwdwHLH0a7cNjTPBQsI92ivoKZI6P-5A/sendMessage", oObj.ToString());
            }
            catch (Exception ex)
            {
                EntrustHelper.STCB("show", "[CnblogsBl.SendTextMessage] " + ex.Message);
            }
        }


        /// <summary>
        /// 发送微信
        /// </summary>
        /// <param name="title"></param>
        /// <param name="author"></param>
        /// <param name="authorUrl"></param>
        /// <param name="time"></param>
        /// <param name="preview"></param>
        /// <param name="url"></param>
        private void SendWeixin(string title, string author, string authorUrl, string time, string preview, string url)
        {

            string sHtml = "主  题：" + title + "\n";
            sHtml += "作  者：<a href=\"" + authorUrl + "\">" + author + "</a>\n";
            sHtml += "时  间：" + time + "\n";
            sHtml += "预  览：" + preview + "\n";
            sHtml += "链  接：<a href=\"" + url + "\">" + url + "</a>\n";
            JObject oObj = new JObject();
            oObj.Add("text", sHtml);

            SendMessageBl.SendWx("https://111.230.99.204/weixin/api/send_text", oObj.ToString());          

        }

        /// <summary>
        /// 获取博客内容
        /// </summary>
        public async Task GetCnblogsHtml()
        {
            try
            {
                if (DateTime.Now.Hour < 6)
                {
                    EntrustHelper.STCB("show", "[CnblogsBl.GetCnblogsHtml] 晚上0-6点不执行!");
                    return;
                }

                EntrustHelper.STCB("show", "[CnblogsBl.GetCnblogsHtml] 开始执行!");
                string shtml =await GetHtml();

                if (shtml.IsNullOrWhiteSpace())
                {
                    EntrustHelper.STCB("show", "[CnblogsBl.GetCnblogsHtml] 获取不到数据!");
                    return;
                }
                List<HtmlTag> listHtmlTag = HtmlTag.FindTagByAttr(shtml, "div", "id", "post_list");

                List<HtmlTag> listObj = null;

                if (listHtmlTag.Count > 0)
                {
                    listHtmlTag = listHtmlTag[0].FindTag("article");
                }
                string stitle = "";
                string sauthor = "";
                string sauthorUrl = "";
                string stime = "";
                string spreview = "";
                string surl = "";
                int iCount = listHtmlTag.Count;
                for (int i = 1; i <= listHtmlTag.Count; i++)
                {
                    try
                    {
                        listObj = listHtmlTag[iCount - i].FindTagByAttr("a", "class", "post-item-title");
                        stitle = listObj[0].InnerText;
                        surl = listObj[0].GetAttribute("href");

                        listObj = listHtmlTag[iCount - i].FindTagByAttr("p", "class", "post-item-summary");
                        spreview = listObj[0].InnerText.Trim();

                        listObj = listHtmlTag[iCount - i].FindTagByAttr("a", "class", "post-item-author");
                        sauthor = listObj[0].InnerText.Trim();
                        sauthorUrl = listObj[0].GetAttribute("href");

                        listObj = listHtmlTag[iCount - i].FindTagByAttr("span", "class", "post-meta-item");
                        stime = listObj[0].FindTag("span")[0].InnerHTML;

                        if (!IsExistUrl(surl))
                        {
                            //写入数据库
                            SetCnblogsDB(stitle, sauthor, sauthorUrl, stime, spreview, surl);
                            //发送TG消息
                            SendTextMessage(stitle, sauthor, sauthorUrl, stime, spreview, surl);
                            //发送微信
                            SendWeixin(stitle, sauthor, sauthorUrl, stime, spreview, surl);
                        }
                        else
                        {
                            continue;
                        }
                    }
                    catch (Exception ex)
                    {
                        EntrustHelper.STCB("show", "[CnblogsBl.GetCnblogsHtml] " + ex.Message);
                    }
                }

                listHtmlTag.Clear();
                listObj.Clear();
                EntrustHelper.STCB("show", "[CnblogsBl.GetCnblogsHtml] 执行结束!");
            }
            catch (Exception ex)
            {
                EntrustHelper.STCB("show", "[CnblogsBl.GetCnblogsHtml] " + ex.Message);
            }
            finally
            {
                EntrustHelper.STCB("InitTimer", Appsettings.Conf.Interval);
            }

        }

        /// <summary>
        /// 判断是否存在 true=存在  false=不存在
        /// </summary>
        /// <param name="url"></param>
        /// <returns></returns>
        private bool IsExistUrl(string url)
        {
            try
            {
                int iCount = 0;
                iCount = Db.dbConnection.Queryable<cnblogsList>().Where(it => it.url == url).Count();
                if (iCount == 1)
                {
                    return true;
                }
            }
            catch (Exception ex)
            {
                EntrustHelper.STCB("show", "[CnblogsBl.IsExistUrl] " + ex.Message);
            }
            return false;
        }

        /// <summary>
        /// 写入 数据库
        /// </summary>
        /// <param name="title"></param>
        /// <param name="author"></param>
        /// <param name="authorUrl"></param>
        /// <param name="time"></param>
        /// <param name="preview"></param>
        /// <param name="url"></param>
        /// <returns></returns>
        private int SetCnblogsDB(string title, string author, string authorUrl, string time, string preview, string url)
        {
            string sSql = "";
            int iCount = 0;
            cnblogsList encnblogsList = new cnblogsList();
            encnblogsList.url = url;
            encnblogsList.title = title;
            encnblogsList.preview = preview;
            encnblogsList.author = author;
            encnblogsList.authorUrl = authorUrl;
            encnblogsList.time = time;
            encnblogsList.addTime = DateTime.Now;
            iCount = Db.dbConnection.Insertable(encnblogsList).ExecuteCommand();
            return iCount;
        }

        /// <summary>
        /// 获取html
        /// </summary>
        /// <returns></returns>
        private  async Task<string>  GetHtml()
        {
            try
            {
                HttpResult httpResult = null;
                string html = "";
                for (int i = 0; i < 5; i++)
                {
                    httpResult =await  HttpHelper.GetAsync("https://www.cnblogs.com/");
                    if (httpResult.StatusCode == 200)
                    {
                        if (httpResult.Html.IndexOfStr("id=\"post_list\""))
                        {
                            return httpResult.Html;
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                EntrustHelper.STCB("show", "[CnblogsBl.GetHtml] " + ex.Message);
            }
            return null;
        }


    }


}