#!/usr/bin/perl

###############################################
#   sche.cgi
#      V3.0 (2009.12.10)
#                     Copyright(C) CGI-design
###############################################

$script = 'sche.cgi';
$base = './schedata';				#データ格納ディレクトリ
$opfile = "$base/option.txt";

@week = ('日','月','火','水','木','金','土');
@mdays = (31,28,31,30,31,30,31,31,30,31,30,31);

open (IN,"$opfile") || &error("OPEN ERROR");	$opdata = <IN>;		close IN;
if (!$opdata) {
	$pass = &crypt('cgi');
	chmod(0666,$opfile);	open(OUT,">$opfile") || &error("OPEN ERROR");
	print OUT "$pass<>スケジュール<><><><><>$base/back.gif<>$base/next.gif<>$base/style.css<>#fafaf5,#000000,#c00000,#aaaaaa,#eeeeee,#ffffff,#ff0000,#fef0ef,#0000ff,#f0f8ff,#fffff5,#ffffaa<>900<>90";
	close OUT;
}

### メイン処理 ###
if ($ENV{'REQUEST_METHOD'} eq "POST") {read(STDIN,$in,$ENV{'CONTENT_LENGTH'});} else {$in = $ENV{'QUERY_STRING'};}
%in = ();
foreach (split(/&/,$in)) {
	($n,$val) = split(/=/);
	$val =~ tr/+/ /;
	$val =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
	$val =~ s/&/&amp;/g;	$val =~ s/</&lt;/g;		$val =~ s/>/&gt;/g;		$val =~ s/"/&quot;/g;	$val =~ s/\r\n|\r|\n/<br>/g;
	if (defined($in{$n})) {$in{$n} .= "\0$val";} else {$in{$n} = $val;}
}
$mode = $in{'mode'};
$cm = $in{'cm'};
$logyear = $in{'year'};
$logmon = $in{'mon'};

open (IN,"$opfile") || &error("OPEN ERROR");
($pass,$title,$com_adm,$home,$bg_img,$title_icon,$back_icon,$next_icon,$style,$colors,$calw,$calh) = split(/<>/,<IN>);
close IN;
($bg_color,$text_color,$title_color,$frame_color,$week_color,$combg_color,$hol_color,$holbg_color,$sat_color,$satbg_color,$daybg_color,$today_color) = split(/,/,$colors);
@wcolor = ($hol_color,$text_color,$text_color,$text_color,$text_color,$text_color,$sat_color);
@wbgcolor = ($holbg_color,$daybg_color,$daybg_color,$daybg_color,$daybg_color,$daybg_color,$satbg_color);

($sec,$min,$hour,$nowday,$nowmon,$nowyear) = localtime;
$nowyear += 1900;
$nowmon++;

if (!$logyear) {$logyear = $nowyear; $logmon = $nowmon;}
$logfile = "$base/$logyear$logmon.txt";

$mdays = $mdays[$logmon - 1];
if ($logmon == 2 && $logyear % 4 == 0) {$mdays = 29;}

if ($mode eq 'admin') {&admin;} else {&main;}

print "</center></body></html>\n";
exit;

###
sub header {
	print "Content-type: text/html\n\n";
	print "<html><head><META HTTP-EQUIV=\"Content-type\" CONTENT=\"text/html; charset=Shift_JIS\">\n";
	print "<title>$title</title><link rel=\"stylesheet\" type=\"text/css\" href=\"$style\"></head>\n";
	$head = 1;
}

###
sub main {
	&header;
	print "<body background=\"$bg_img\" bgcolor=\"$bg_color\" text=\"$text_color\"><center>\n";
	print "<table width=98%><tr><td width=50 valign=top>\n";
	if ($home) {print "<a href=\"$home\">HOME</a>";}
	print "</td><td align=center>";
	if ($title_icon) {print "<img src=\"$title_icon\">";} else {print "<font color=\"$title_color\" size=\"+1\"><b>$title</b></font>";}
	print "</td><td width=50></td></tr></table>\n";
	print "<table><tr><td>$com_adm</td></tr></table>\n";

	$mon = $logmon - 1;
	if ($mon < 1) {$mon = 12; $year = $logyear - 1;} else {$year = $logyear;}
	print "<table width=",$calw-40," cellpadding=0><tr><td width=80><font size=\"+1\"><b>$logyear年</b></font></td>\n";
	print "<td align=center><a href=\"$script?cm=$cm&year=$year&mon=$mon\"><img src=\"$back_icon\" border=0></a>　　　<font size=\"+2\"><b>$logmon月</b></font>　　　";
	$mon = $logmon + 1;
	if (12 < $mon) {$mon = 1; $year = $logyear + 1;} else {$year = $logyear;}
	print "<a href=\"$script?cm=$cm&year=$year&mon=$mon\"><img src=\"$next_icon\" border=0></a></td>\n";
	$scm = !$cm;
	print "<form action=\"$script\" method=POST><td width=80 align=right>\n";
	print "<input type=hidden name=cm value=\"$scm\">\n";
	print "<input type=hidden name=year value=\"$logyear\">\n";
	print "<input type=hidden name=mon value=\"$logmon\">\n";
	print "<input type=submit value=\"表\示切替\"></td></form></tr></table>\n";
	if ($cm) {&dsp_calt;} else {&dsp_cal;}
	print "<table width=$calw><tr><td align=right><a href=\"$script?mode=admin\">[管理]</a></td></tr></table>\n";
	# 次の行は著作権表示ですので削除しないで下さい。#
	print "<a href=\"http://yume-ajisai.com\" target=\"_blank\">Schedule</a>\n";
}

###
sub dsp_cal {
	&logread;
	print "<table width=$calw bgcolor=\"$combg_color\" bordercolor=\"$frame_color\" border=1 cellspacing=0 cellpadding=4 style=\"border-collapse: collapse\">\n";
	print "<tr bgcolor=\"$week_color\" align=center>\n";
	for (0 .. 6) {print "<td width=14%><font color=\"$wcolor[$_]\"><b>$week[$_]</b></font></td>\n";}
	print "</tr>\n";

	&set_holiday;
	&get_wday($logyear,$logmon,1);
	$w = $n = 0;
	$k = 1;
	for (0 .. 41) {
		if (!$w) {print "<tr valign=top>";}
		if ($wday <= $_ && $k <= $mdays) {
			if ($w == 1) {$n++;}
			$wcolor = $wcolor[$w];
			$bc = $wbgcolor[$w];
			$holiday = '';
			if (2007 <= $logyear) {
				&get_holiday;
				if ($holiday) {$wcolor = $wcolor[0]; $bc = $wbgcolor[0];}
			}
			if ($logyear eq $nowyear && $logmon eq $nowmon && $k eq $nowday) {$bc = $today_color;}
			if ($k < 10) {$day = "&nbsp;$k";} else {$day = $k;}

			print "<td bgcolor=\"$bc\" height=$calh><font color=\"$wcolor\"><font size=\"+1\"><b>$day</b></font> <font size=\"-1\">$holiday</font></font><br>\n";
			if ($mode eq 'admin') {
				$com[$k] =~ s/<br>/\r/g;
				print "<textarea cols=15 rows=8 name=com$k style=\"ime-mode:active;\">$com[$k]</textarea>";
			} else {
				$com[$k] =~ s/([^=^\"]|^)(http\:[\w\.\~\-\/\?\&\+\=\:\@\%\;\#\%]+)/$1<a href=\"$2\" target=\"_blank\">$2<\/a>/g;
				print "<font size=\"-1\">$com[$k]</font>";
			}
			print "</td>\n";
			$k++;
		} else {
			print "<td></td>";
		}
		$w++;
		if ($w == 7) {
			print "</tr>\n";
			if ($mdays < $k) {last;}
			$w = 0;
		}
	}
	print "</table>\n";
}

###
sub logread {
	@com = ();
	if (!-e $logfile) {return;}

	open (IN,"$logfile") || &error("OPEN ERROR");
	while (<IN>) {
		($day,$com) = split(/<>/);
		$com[$day] = $com;
	}
	close IN;
}

###
sub dsp_calt {
	&logread;
	print "<table width=$calw bordercolor=\"$frame_color\" border=1 cellspacing=0 cellpadding=3 style=\"border-collapse: collapse\">\n";
	&set_holiday;
	$w = &get_wday($logyear,$logmon,1);
	$n = 0;
	for $k (1 .. $mdays) {
		if ($w == 1) {$n++;}
		$wcolor = $wcolor[$w];
		$bc = $wbgcolor[$w];
		$holiday = '';
		if (2007 <= $logyear) {
			&get_holiday;
			if ($holiday) {$wcolor = $wcolor[0]; $bc = $wbgcolor[0];}
		}
		if ($logyear eq $nowyear && $logmon eq $nowmon && $k eq $nowday) {$bcday = " bgcolor=\"$today_color\"";} else {$bcday = '';}

		print "<tr bgcolor=\"$bc\"><td width=60 align=right nowrap><font color=\"$wcolor\"><b>$k</b> ($week[$w])</font></td><td$bcday><div><font color=\"$wcolor\">$holiday</font></div>\n";
		if ($mode eq 'admin') {
			$com[$k] =~ s/<br>/\r/g;
			print "<textarea cols=114 rows=4 name=com$k style=\"ime-mode:active;\">$com[$k]</textarea>";
		} else {
			$com[$k] =~ s/([^=^\"]|^)(http\:[\w\.\~\-\/\?\&\+\=\:\@\%\;\#\%]+)/$1<a href=\"$2\" target=\"_blank\">$2<\/a>/g;
			print $com[$k];
		}
		print "</td></tr>\n";
		$w++;
		if (6 < $w) {$w = 0;}
	}
	print "</table>\n";
}

###
sub set_holiday {
	$def = 0.242194*($logyear-1980)-int(($logyear-1980)/4);
	$spr = int(20.8431+$def);
	$aut = int(23.2488+$def);
	%hod = ('0101','元日','0211','建国記念の日',"03$spr",'春分の日','0429','昭和の日','0503','憲法記念日','0504','みどりの日','0505','こどもの日',"09$aut",'秋分の日','1103','文化の日','1123','勤労感謝の日','1223','天皇誕生日');
	%how = ('12','成人の日','73','海の日','93','敬老の日','102','体育の日');
}

###
sub get_holiday {
	$sm = sprintf("%02d%02d",$logmon,$k);
	$holiday = $hod{$sm};
	if ($holiday && !$w) {$hflag = 1;}
	if (!$holiday && $w == 1) {$holiday = $how{"$logmon$n"};}
	if (!$holiday && $hflag) {$holiday = '振替休日'; $hflag = 0;}
	if (($logyear eq '2009' || $logyear eq '2015') && $sm eq '0922') {$holiday = '国民の休日';}
}

###
sub get_wday {
	($y,$m,$d) = @_;
	if ($m < 3) {$y--; $m+=12;}
	$wday = ($y+int($y/4)-int($y/100)+int($y/400)+int((13*$m+8)/5)+$d)%7;
}

###
sub admin {
	&header;
	print "<body><center>\n";
	$inpass = $in{'pass'};
	if ($inpass eq '') {
		print "<table width=97%><tr><td><a href=\"$script\">[Return]</a></td></tr></table>\n";
		print "<br><br><br><br><h4>パスワードを入力して下さい</h4>\n";
		print "<form action=\"$script\" method=POST>\n";
		print "<input type=hidden name=mode value=\"admin\">\n";
		print "<input type=password size=10 maxlength=8 name=pass>\n";
		print "<input type=submit value=\" 認証 \"></form>\n";
		print "</center></body></html>\n";
		exit;
	}
	$mat = &decrypt($inpass,$pass);
	if (!$mat) {&error("パスワードが違います");}

	print "<table width=100% bgcolor=\"#8c4600\"><tr><td>　<a href=\"$script\"><font color=\"#ffffff\"><b>Return</b></font></a></td>\n";
	print "<form action=\"$script\" method=POST><td align=right>\n";
	print "<input type=hidden name=mode value=\"admin\">\n";
	print "<input type=hidden name=pass value=\"$inpass\">\n";
	print "<input type=submit value=\"記事編集\">\n";
	print "<input type=submit name=set value=\"基本設定\"></td></form><td width=10></td></tr></table><br>\n";

	if ($in{'set'}) {&setup;} else {&edtin;}
}

###
sub edtin {
	if ($in{'wrt'}) {
		open (OUT,">$logfile") || &error("OPEN ERROR");
		for (1 .. $mdays) {print OUT "$_<>$in{\"com$_\"}<>\n";}
		close OUT;
		chmod(0666,$logfile);
	}
	print "記事を入力後、「登録する」を押して下さい。<br><br>\n";
	print "<table width=$calw cellpadding=0><tr><td width=80><font size=\"+1\"><b>$logyear年</b></font></td>\n";
	$mon = $logmon - 1;
	if ($mon < 1) {$mon = 12; $year = $logyear - 1;} else {$year = $logyear;}
	print "<form action=\"$script\" method=POST><td align=right>\n";
	print "<input type=hidden name=mode value=\"admin\">\n";
	print "<input type=hidden name=pass value=\"$inpass\">\n";
	print "<input type=hidden name=cm value=\"$cm\">\n";
	print "<input type=hidden name=year value=\"$year\">\n";
	print "<input type=hidden name=mon value=\"$mon\">\n";
	print "<input type=image src=\"$back_icon\"></td></form>\n";
	print "<td width=100 align=center><font size=\"+2\"><b>$logmon月</b></font></td>\n";
	$mon = $logmon + 1;
	if (12 < $mon) {$mon = 1; $year = $logyear + 1;} else {$year = $logyear;}
	print "<form action=\"$script\" method=POST><td>\n";
	print "<input type=hidden name=mode value=\"admin\">\n";
	print "<input type=hidden name=pass value=\"$inpass\">\n";
	print "<input type=hidden name=cm value=\"$cm\">\n";
	print "<input type=hidden name=year value=\"$year\">\n";
	print "<input type=hidden name=mon value=\"$mon\">\n";
	print "<input type=image src=\"$next_icon\"></td></form>\n";
	$scm = !$cm;
	print "<form action=\"$script\" method=POST><td width=80 align=right>\n";
	print "<input type=hidden name=mode value=\"admin\">\n";
	print "<input type=hidden name=pass value=\"$inpass\">\n";
	print "<input type=hidden name=cm value=\"$scm\">\n";
	print "<input type=hidden name=year value=\"$logyear\">\n";
	print "<input type=hidden name=mon value=\"$logmon\">\n";
	print "<input type=submit value=\"表\示切替\"></td></form></tr></table>\n";

	print "<table><tr><form action=\"$script\" method=POST><td>\n";
	print "<input type=hidden name=mode value=\"admin\">\n";
	print "<input type=hidden name=pass value=\"$inpass\">\n";
	print "<input type=hidden name=cm value=\"$cm\">\n";
	print "<input type=hidden name=year value=\"$logyear\">\n";
	print "<input type=hidden name=mon value=\"$logmon\">\n";
	print "<input type=submit name=wrt value=\"登録する\"></td></tr></table><div style=\"margin-top:5px;\"></div>\n";
	if ($cm) {&dsp_calt;} else {&dsp_cal;}
	print "</form>\n";
}

###
sub setup {
	if ($in{'wrt'}) {
		if ($in{'newpass'} ne '') {$pass = &crypt($in{'newpass'});}
		$title = $in{'title'};
		$com_adm = $in{'com_adm'};
		$home = $in{'home'};
		$bg_img = $in{'bg_img'};		$title_icon = $in{'title_icon'};		$back_icon = $in{'back_icon'};		$next_icon = $in{'next_icon'};
		$style = $in{'style'};
		$colors = $in{'colors'};		$colors =~ s/\0/,/g;
		$calw = $in{'calw'};			$calh = $in{'calh'};

		open (OUT,">$opfile") || &error("OPEN ERROR");
		print OUT "$pass<>$title<>$com_adm<>$home<>$bg_img<>$title_icon<>$back_icon<>$next_icon<>$style<>$colors<>$calw<>$calh";
		close OUT;
	}
	print "下記に入力後、「設定する」を押して下さい。<br><br>\n";
	print "<form action=\"$script\" method=POST>\n";
	print "<input type=hidden name=mode value=\"admin\">\n";
	print "<input type=hidden name=pass value=\"$inpass\">\n";
	print "<input type=hidden name=set value=\"1\">\n";
	print "<input type=submit name=wrt value=\"設定する\"><br><br>\n";

	print "<table bgcolor=\"#dddddd\" cellspacing=10><tr><td><table cellspacing=1 cellpadding=0>\n";
	print "<tr><td><b>タイトル</b></td><td><input type=text size=60 name=title value=\"$title\"></td></tr>\n";
	$com_adm =~ s/<br>/\r/g;
	print "<tr><td valign=top><br><b>コメント</b></td><td><textarea cols=68 rows=8 name=com_adm>$com_adm</textarea></td></tr>\n";
	print "<tr><td><b>ホームURL</b></td><td><input type=text size=60 name=home value=\"$home\"></td></tr>\n";
	print "<tr><td><b>壁紙</b></td><td><input type=text size=60 name=bg_img value=\"$bg_img\"></td></tr>\n";
	print "<tr><td><b>タイトルアイコン</b></td><td><input type=text size=60 name=title_icon value=\"$title_icon\"></td></tr>\n";
	print "<tr><td><b>BACKアイコン</b></td><td><input type=text size=60 name=back_icon value=\"$back_icon\"></td></tr>\n";
	print "<tr><td><b>NEXTアイコン</b></td><td><input type=text size=60 name=next_icon value=\"$next_icon\"></td></tr>\n";
	print "<tr><td><b>スタイルシート</b></td><td><input type=text size=60 name=style value=\"$style\"></td></tr>\n";

	print "<tr><td></td><td><a href=\"$base/color.htm\" target=\"_blank\">カラーコード</a></td></tr>\n";
	@name = ('基本背景色','基本文字色','タイトル','枠色','曜日背景色','カレンダー背景色','休日','休日背景色','土曜日','土曜日背景色','平日背景色','本日背景色');
	@colors = split(/,/,$colors);
	for (0 .. $#name) {
		print "<tr><td><b>$name[$_]</b></td><td><table cellspacing=0 cellpadding=0><tr>\n";
		print "<td><input type=text size=10 name=colors value=\"$colors[$_]\" style=\"ime-mode:inactive;\"></td>\n";
		print "<td width=5></td><td width=80 bgcolor=\"$colors[$_]\"></td></tr></table></td></tr>\n";
	}
	print "<tr><td><b>カレンダー</b></td><td>横<input type=text size=4 name=calw value=\"$calw\" style=\"text-align:right; ime-mode:disabled;\">px　　　縦<input type=text size=3 name=calh value=\"$calh\" style=\"text-align:right; ime-mode:disabled;\">px/日</td></tr>\n";
	print "<tr><td><b>パスワード変更</b></td><td><input type=password size=10 maxlength=8 name=newpass> （英数8文字以内）</td></tr>\n";
	print "</table></td></tr></table></form>\n";
}

###
sub crypt {
	@salt = ('a' .. 'z','A' .. 'Z','0' .. '9');
	srand;
	$salt = "$salt[int(rand($#salt))]$salt[int(rand($#salt))]";
	return crypt($_[0],$salt);
}

###
sub decrypt {
	$salt = $_[1] =~ /^\$1\$(.*)\$/ && $1 || substr($_[1],0,2);
	if (crypt($_[0],$salt) eq $_[1] || crypt($_[0],'$1$' . $salt) eq $_[1]) {return 1;}
	return 0;
}

###
sub error {
	if (!$head) {&header; print "<body><center>\n";}
	print "<br><br><br><br><h3>ERROR !!</h3><font color=red><b>$_[0]</b></font>\n";
	print "</center></body></html>\n";
	exit;
}
