days

C#

using System;
using System.IO;
using System.Text;  // Encoding
using System.Web;   // HttpUtility
using System.Net;
using System.Text.RegularExpressions;

class c{
    static void Main(string[] args)
    {

        string wiki_base;
        string wiki_page;
        
        if(args.Length<2)
        {
            wiki_base = "http://chrono.s9.xrea.com/pukiwiki/index.php";
            wiki_page = "FrontPage";
        }
        else
        {
            wiki_base = args[0];
            wiki_page = args[1];
        }

        // URLエンコード
        string wiki_page_encode = HttpUtility.UrlEncode(wiki_page, Encoding.GetEncoding("euc-jp") );
//      string wiki_page_encode = HttpUtility.UrlEncode(wiki_page, Encoding.GetEncoding("shift_jis") );
//      string wiki_page_encode = HttpUtility.UrlEncode(wiki_page, Encoding.UTF8 );

        try{
            //プロキシサーバーを指定
            // string str_proxy = "http://localhost:8080";
            // GlobalProxySelection.Select = new WebProxy( str_proxy );
            GlobalProxySelection.Select = WebProxy.GetDefaultProxy();
            
            // 対象ページのバックアップ一覧ページ取得
            string open_url = wiki_base + "?"
                    + "cmd=backup&"
                    + "page="+wiki_page_encode;
            WebRequest webreq = WebRequest.Create( open_url );
            WebResponse webres = webreq.GetResponse();
            Stream st = webres.GetResponseStream();
            StreamReader sr = new StreamReader(st);
            Console.WriteLine("GET : "+ open_url);

            string line;
            while( null != (line = sr.ReadLine() ) )
            {
                // バックアップ一覧のリストにマッチ
                // ### <li>のあとにリンカが設定されている場合とされていない場合がある。
                Regex reg = new Regex("<li>.*(?<no>[0-9]+) \\((?<date>[0-9-]{10})[^0-9]+(?<time>[0-9:]{8})\\)");
                Match m   = reg.Match(line);
                if( !m.Success ) continue;  // マッチしなければ次の行へ
                
                string get_no   = m.Groups["no"].Value;
                string get_date = m.Groups["date"].Value;
                string get_time = m.Groups["time"].Value;
                Console.WriteLine("{0}. {1} {2}",get_no,get_date,get_time);

                // リンク先ページの取得
                string url_sub = open_url + "&age="+get_no+"&action=source";
                WebRequest webreq_sub = WebRequest.Create( url_sub );
                WebResponse webres_sub = webreq_sub.GetResponse();
                Stream st_sub = webres_sub.GetResponseStream();
                Console.WriteLine("LinkOpen : "+url_sub);

                // Encodingの取得
                StreamReader sr_tmp = new StreamReader(st_sub);
                Regex reg_enc = new Regex("encoding=\"(?<enc>.*)\"");
                string line_tmp;
                string enc_type = "";
                while( null != (line_tmp = sr_tmp.ReadLine() ) )
                {
                    Match mEnc   = reg_enc.Match(line_tmp);
                    if( mEnc.Success )
                    {
                        enc_type = mEnc.Groups["enc"].Value;
                        break;
                    }
                }
                Console.WriteLine("Encoding is "+enc_type);
                
                // 書き込みファイルの設定
                string WriteDir = System.Windows.Forms.Application.StartupPath+@"\"+
                            Regex.Replace(wiki_base, "[\\\\:/<>\\?\\|\"]+", "_");
                Directory.CreateDirectory( WriteDir );
                
                string WriteFileName = WriteDir+@"\"+
                            Regex.Replace(wiki_page, "[\\\\:/<>\\?\\|\"]+", "_")+
                            String.Format("_{0:D3}_{1}_{2}.txt",
                                int.Parse(get_no),
                                get_date,
                                get_time.Replace(":","") );
                StreamWriter sw = new StreamWriter(
                            WriteFileName,
                            false,
                            Encoding.GetEncoding("shift_jis"));
                Console.WriteLine("Write : "+WriteFileName);

                // 取得したEncodingで読み取り開始
                Encoding enc = Encoding.GetEncoding( enc_type );
                StreamReader sr_sub = new StreamReader(st_sub, enc);
                string line_sub;
                bool    isRead=false;
                while( null != (line_sub = sr_sub.ReadLine() ) )
                {
                    Regex regStart = new Regex("<pre>");
                    Regex regEnd = new Regex("</pre>");
                    if(isRead)
                    {
                        if( regEnd.IsMatch(line_sub) ) 
                        {
                            isRead = false;
                        }
                    }
                    else
                    {
                        if( regStart.IsMatch(line_sub) ) 
                        {
                            isRead = true;
                        }
                        else
                        {
                            continue;
                        }
                    }
                    sw.WriteLine(line_sub);
                }
                
                sw.Close();
                sr_tmp.Close();
                sr_sub.Close();
                st_sub.Close();
                webres_sub.Close();
            }
            sr.Close();
            st.Close();
            webres.Close();
        }
        catch(Exception e)
        {
            Console.WriteLine(e);
        }
    }
}