
<?php

//===================初期設定====================

$data_file = './chat.dat'; //データファイル名

$title = 'KOMOチャット'; //タイトル名

$data_max = 30; //データ最大記録数

//===============================================



//スーパーグローバル変数対策

if(!isset($PHP_SELF)){ $PHP_SELF = $_SERVER["PHP_SELF"]; }

if(!isset($action)){ $action = $_POST['action']; }

if(!isset($mode)){

    if($_GET['mode']){

        $mode = $_GET['mode'];

    }else{

        $mode = $_POST['mode'];

    }

}

if(!isset($name)){

    if($_GET['name']){

        $name = $_GET['name'];

    }else{

        $name = $_POST['name'];

    }

}

if(!isset($ncolor)){

    if($_GET['ncolor']){

        $ncolor = $_GET['ncolor'];

    }else{

        $ncolor = $_POST['ncolor'];

    }

}

if(!isset($refresh)){

    if($_GET['refresh']){

        $refresh = $_GET['refresh'];

    }else{

        $refresh = $_POST['refresh'];

    }

}

if(!isset($message)){ $message = $_POST['message']; }

//エスケープ記号対策

$name = stripslashes($name);

$message = stripslashes($message);



//===================フレーム生成関数======================

function MakeFrame() {

    global $title,$PHP_SELF;

    print "<HTML><HEAD><TITLE>$title</TITLE></HEAD>\n";

    print "<FRAMESET rows=20%,80%>\n";

    print "<FRAME src=$PHP_SELF?mode=entry name=up>\n";

    print "<FRAME src=$PHP_SELF?mode=output name=bottom>\n";

    print "</FRAMESET></HTML>\n";

}

//===================エントリーフォーム生成関数=======================

function EntryPage() {

    global $title,$PHP_SELF;

    print "<HTML><HEAD><TITLE>$title</TITLE></HEAD>\n";

    print "<BODY text=#000000 bgcolor=#ffffee>\n";

    print "<FORM method=POST action=$PHP_SELF target=up>\n";

    print "<INPUT type=hidden name=mode value=input>\n";

    print "<H3>$title</H3>\n";

    print "<BLOCKQUOTE>\n";

    print "<TABLE BORDER=0 CELLSPACING=1 WIDTH=80%>\n";

    print "<TR><TD WIDTH=11%><P ALIGN=RIGHT>お名前：</TD>\n";

    print "<TD WIDTH=89%><INPUT type=text name=name size=20>\n";

    print "<input type=radio name=ncolor value=#0000ff checked><font color=#0000ff><b>青</b></font>\n";

    print " <input type=radio name=ncolor value=#ff0000><font color=#ff0000><b>赤</b></font>\n";

    print " <input type=radio name=ncolor value=#008000><font color=#008000><b>緑</b></font>\n";

    print " <input type=radio name=ncolor value=#800000><font color=#800000><b>茶</b></font>\n";

    print " <input type=radio name=ncolor value=#800080><font color=#800080><b>紫</b></font>\n";

    print "<INPUT type=submit value=エントリー></TD></TR></TABLE></BLOCKQUOTE>\n";

    print "</FORM></BODY></HTML>\n";

}

//===================入力フォーム生成関数=======================

function InputPage() {

    global $title,$name,$ncolor,$refresh,$PHP_SELF;

    print "<HTML><HEAD><TITLE>$title</TITLE></HEAD>\n";

    print "<BODY text=#000000 bgcolor=#ffffee>\n";

    print "<FORM name=form1 method=POST action=$PHP_SELF target=bottom>\n";

    print "<INPUT type=hidden name=mode value=post>\n";

    print "<BLOCKQUOTE>\n";

    print "<TABLE BORDER=0 CELLSPACING=1 WIDTH=88%>\n";

    if($name != ""){

        print "<TR><TD>$name ：<INPUT type=hidden name=name value=\"$name\">\n";

    } else {

        print "<TR><TD>身元不明人：<INPUT type=hidden name=name value=身元不明人>\n";

    }

    print "<INPUT type=hidden name=ncolor value=\"$ncolor\">\n";

    print "<INPUT type=text name=message size=50>\n";

    print " リフレッシュ：<SELECT NAME=refresh><OPTION>60</OPTION><OPTION>45</OPTION><OPTION>30</OPTION></SELECT> 秒\n";

    print " <INPUT type=submit value=送信></TD></TR></FORM>\n";

    print "<TR><TD><FORM method=POST action=$PHP_SELF target=up>\n";

    print "<INPUT type=hidden name=mode value=return>\n";

    if($name != ""){

        print "<INPUT type=hidden name=name value=$name>\n";

    } else {

        print "<INPUT type=hidden name=name value=身元不明人>\n";

    }

    print "<INPUT type=submit value=エントリーページへ戻る></TD></TR></FORM>\n";

    print "</TABLE></BLOCKQUOTE></BODY></HTML>\n";

}

//===================メッセージ表示関数=====================

function OutputPage() {

    global $title,$data_file,$refresh,$PHP_SELF;

    if(!$refresh){ $refresh = 60; }

    print "<HTML><HEAD><TITLE>$title</TITLE></HEAD>\n";

    print "<META HTTP-EQUIV=refresh CONTENT=$refresh;URL=$PHP_SELF?mode=output>\n";

    print "<BODY text=#000000 bgcolor=#ffffee link=#ff0000 vlink=#ff0000>\n";

    print "<SCRIPT language=JavaScript>\n";

    print "parent.up.document.form1.message.value=\"\";\n";

    print "</SCRIPT>\n";

    $datalog = file($data_file);

    $msg_count = count($datalog);

    for($i = 0; $i < $msg_count; $i++){

        list($name2,$ncolor2,$message2,$now2) = split( ",", $datalog[$i]);

        //記事表示部を生成

        print "<font color=$ncolor2><b>$name2</b></font>\n";

        print " $message2\n";

        print " <font size=2 color='green'>$now2</font>\n";

        print "<hr>\n";

    }

    print "<div align=right><font size=-1>Powered by <a href=http://www.komonet.ne.jp/ target=_blank>KOMONET</a></font></div>\n";

    print "</BODY></HTML>\n";

}

//===================メッセージ書き込み関数=====================

function PostMessage() {

    global $name,$ncolor,$message,$data_file,$data_max;

    if($message != ""){

        //現在時刻の取得

        $now = date("Y/m/d H:i:s");

        //ここから書き込みデータの調整

        $name = htmlspecialchars($name); //特殊文字のHTMLエントリへの変換

        $ncolor = htmlspecialchars($ncolor);

        $message = htmlspecialchars($message);

        $message = nl2br($message); //HTML改行文字の挿入

        $message = str_replace("\r", "", $message); //文字列の置換

        $message = str_replace("\n", "", $message);

        //ログファイルの区切文字(",")と区別するために文字コード(&#44)に書き換える。 

        $name = str_replace(",", "&#44;",$name);

        $message = str_replace(",", "&#44;",$message);

        //配列要素を文字列により連結

        $input_msg = implode(",", array($name,$ncolor,$message,$now));

        $datalog = file($data_file);

        $fp = fopen($data_file, "w");

        rewind($fp);

        fputs($fp, "$input_msg\n");

        //最大記録数の調整

        if($data_max < sizeof($datalog))

            $msg_num = $data_max - 1;

        else

            $msg_num = sizeof($datalog);

        for($i = 0; $i < $msg_num; $i++){

            fputs($fp, $datalog[$i]);

        }

        fclose($fp);

        unset($datalog);

    }

    OutputPage();

}

//==================メイン処理=====================

if($mode == ""){ MakeFrame(); }

elseif($mode == "entry") { EntryPage(); }

elseif($mode == "output") { OutputPage(); }

elseif($mode == "input") { InputPage(); }

elseif($mode == "post") { PostMessage(); }

elseif($mode == "return") { EntryPage(); }

else { }

?>