topicfunc.cs

是一款式CSDN阅读器,可以方便CSDN用户阅读自己感兴趣的内容！

using System;
using System.Collections.Generic;
using System.Text;

using System.Xml;
using System.Xml.XPath;
using System.Xml.Xsl;
using System.Threading;
using System.Windows.Forms;
using feiyun0112.cnblogs.com.CSDNReader.Model;
using System.Web;

namespace feiyun0112.cnblogs.com.CSDNReader.Functions
{
    class TopicFunc
    {
        private Topic _topic = null;
        public Model.Topic Topic
        {
            get { return _topic; }
            set { _topic=value ; }
        }

        public TopicFunc(Topic t)
        {
            this.Topic = t;
        }
        
        /// <summary>
        /// 过滤帖子
        /// </summary>
        /// <returns></returns>
        public bool Filter()
        {
            //总显示本人回复的
            if (Setting.ShowRepliedTopic && (this.Topic.HaveReplied || (Variant.CurrentUser!=null && this.Topic.Name.IndexOf(Variant.CurrentUser.Name) > 0)))
            {
                return true;
            }
            //显示新贴
            if (Setting.ShowNewTopic && Convert.ToInt32(this.Topic.Replies) == 0 && Convert.ToInt32(this.Topic.Point) >0)
            {
                return true;
            }
            
            //总是显示大分贴
            if (Setting.ShowMaxPoint && ((Convert.ToInt32(this.Topic.Replies) <= 10 && Convert.ToInt32(this.Topic.Point) >= 100) || this.Topic.Room.Name.IndexOf("已解决")>0 ))
            {
                return true;
            }
            
            //最小分数
            if (Setting.MinTopicPoint > 0 && Convert.ToInt32(this.Topic.Point) < Setting.MinTopicPoint)
            {
                return false;
            }


            //最大回复次数
            if (Setting.MaxTopicReplies>0 && Convert.ToInt32(this.Topic.Replies) > Setting.MaxTopicReplies)
            {
                return false;                
            }
            return true;            
        }

        /// <summary>
        /// 判断是否存在
        /// </summary>
        /// <param name="Topics"></param>
        /// <returns></returns>
        public Topic Contains(IList<Topic> Topics)
        {
            foreach (Topic t in Topics)
            {
                if (this.Topic.Id == t.Id)
                {
                    return t;
                }
            }
            return null;
        }

        /// <summary>
        /// 更新帖子的信息
        /// </summary>
        /// <param name="newTopic"></param>
        /// <returns></returns>
        public bool UpdateTopic(Topic newTopic)
        {
            this.Topic.ReplyTime = newTopic.ReplyTime;
            this.Topic.Replies = newTopic.Replies;
            if (this.Topic.HaveRead) this.Topic.ReadAgain = true;
            this.Topic.HaveRead = false;

            return true;
        }

        public  void ShowTopic()
        {
            if (this.Topic.threadShow != null && this.Topic.threadShow.ThreadState == ThreadState.Running)
            {
                return;
            }
            this.Topic.threadShow = new Thread(new ThreadStart(ShowProc));

            this.Topic.threadShow.Start();
        }

        /// <summary>
        /// 显示帖子
        /// </summary>
        private void ShowProc()
        {           
            WEBFunc wFunc = new WEBFunc();
            string strHTML = "";
            Encoding encoding = Variant.Encoding;
   GetHtml:
            try
            {
                strHTML = wFunc.GetHTML("http://community.csdn.net/Expert/TopicView1.asp?id=" + this.Topic.Id, encoding);
            }
            catch
            {
                strHTML = "";
            }

            if (strHTML == "")
            {
                DelegateFunc.OnShowTopics(this.Topic.Id);
                return;
            }

            //判断编码
            if (encoding == Variant.Encoding)
            {
                if (Variant.Encoding==Encoding.UTF8)
                {
                    if (strHTML.StartsWith("<?xml version=\"1.0\" encoding=\"GB2312\"", StringComparison.OrdinalIgnoreCase) )
                    {
                        encoding = System.Text.Encoding.GetEncoding("gb2312");
                    }
                }
                else
                {
                    if (strHTML.StartsWith("<?xml version=\"1.0\" encoding=\"UTF-8\"", StringComparison.OrdinalIgnoreCase) )
                    {
                        encoding = System.Text.Encoding.UTF8 ;
                    }
                }
                if (encoding != Variant.Encoding)
                    goto GetHtml;
            }
            wFunc = null;

            try
            {
                //帖子源文件是一个XML，使用XSL文件进行转换
                XmlDocument xml = new XmlDocument();
                
                xml.LoadXml(strHTML);
                
                XslCompiledTransform xslt = new XslCompiledTransform();
                xslt.Load(Application.StartupPath.Replace(@"\", @"\\") + @"\\csdn.xsl");

                System.IO.StringWriter writer = new System.IO.StringWriter();
                
                xslt.Transform(xml, null, writer);

                this.Topic.Html = writer.ToString();
            }
            catch(Exception e)
            {
                this.Topic.Html = e.Message;
            }

            DelegateFunc.OnShowTopics(this.Topic.Id);
        }


        /// <summary>
        /// 回帖
        /// </summary>
        /// <param name="strPostData"></param>
        /// <param name="blnUseSign"></param>
        /// <returns></returns>
        public bool Post(string strPostData,bool blnUseSign)
        {
            DelegateFunc.OnRefreshInfo("正在发出回复");
            string strHTML = "";
            if (blnUseSign && Setting.Signature != "")
            {
                strPostData = strPostData + "\r\n  \r\n" + Setting.Signature;
            }

            //回复的格式
            strPostData = String.Format("Topicid={0}&RoomID={2}&xmlReply=aaaaa&csdnname=&csdnpassword=&ReplyContent={1}"
                                        ,this.Topic.Id
                                        , HttpUtility.UrlEncode(strPostData,Variant.Encoding)
                                        ,this.Topic.Room.RoomID 
                                        );
            WEBFunc wFunc = new WEBFunc();
            wFunc.Referer = "http://community.csdn.net/Expert/xsl/Reply_Xml.asp?Topicid="+this.Topic.Id;
            
            do
            {
                Variant.Err = "";
                strHTML = wFunc.GetHTML("http://community.csdn.net/Expert/reply.asp", strPostData, null);
            } while (Variant.Err == "KeepAliveFailure");
            wFunc = null;

            RegexFunc rFunc = new RegexFunc();
            string strAlert = rFunc.GetMatch(strHTML, "<font color=red>(.*)</font>");

            if (strAlert=="" && strHTML=="" &&  Variant.Err != "")
            {
                strAlert = Variant.Err;
            }
            if (strAlert != "")
            {
                ////Variant.CurrentUser = null;
                MsgFunc.ShowWarning(strAlert);
                return false;
            }

            this.Topic.HaveReplied = true;

            new RoomFunc(this.Topic.Room).CheckTopicExist(this.Topic);

            return true;
        }

        public Topic Clone()
        {
            Topic t = new Topic(this.Topic.Room, this.Topic.Id, this.Topic.Name, this.Topic.User, this.Topic.Point, this.Topic.Replies, this.Topic.ReplyTime );
            t.HaveRead  = this.Topic.HaveRead;
            t.HaveReplied  = this.Topic.HaveReplied ;
            t.Html  = this.Topic.Html ;
            t.Id  = this.Topic.Id ;
            t.Name  = this.Topic.Name ;
            t.Point  = this.Topic.Point ;
            t.ReadAgain  = this.Topic.ReadAgain ;
            t.RecID  = this.Topic.RecID ;
            t.Replies  = this.Topic.Replies ;
            t.ReplyTime  = this.Topic.ReplyTime ;
            t.Room  = this.Topic.Room ;
            t.TabPage  = this.Topic.TabPage ;
            t.threadShow  = this.Topic.threadShow ;
            t.User  = this.Topic.User ;

            return t;
        }
    }
}