#!/bin/sh

# T2 CGI glue (C) 2004-2025 René Rebe

# disable filename globbing
set -f

. $DOCUMENT_ROOT/webcore.conf

[ "$DOCUMENT_ROOT" ] && base="$DOCUMENT_ROOT/webcore" || base="$PWD/webcore"

new_date () {
	ls -l --time-style=long-iso "$1" | sed "s,  *, ,g" | cut -d ' ' -f 6-7
}
datefunc=new_date

# which file to process
x="$QUERY_STRING"
[ "$x" ] || x=index.html
[ -d "$x" ] && x="${x}index.html"
dir="${x%/*}"

# if sub-dir and has index.cgi, run it for dyn content, ...
if [ "$dir" -a -e "$dir/index.cgi" ]; then
	dyn=1
	y=`mktemp`
	if /usr/bin/time -f '%e' -o "$y.time" \
	        $PWD/$dir/index.cgi "$x" > "$y"
	then
		dt="Generated: in `cat "$y.time"`s"
	else
		rm $y ; # if error -> not found -> 404
	fi
	x="$y"
	rm "$y.time"
else
	dyn=0
	x="${x%.html}.tmpl"
	dt="Last modified: `$datefunc "$x"`"
fi

if [[ "$x" = rss.xml* ]]; then
	# TODO: move to a rss.xml.cgi, ...
	echo "Content-type: application/rss+xml; charset=utf-8"
	echo
	echo '<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0">
<channel>
<title>T2 SDE</title>
<link>https://t2sde.org/</link>
<language>en-us</language>
<image>
	<url>https://t2sde.org/t2-logo-medium.png</url>
	<link>https://t2sde.org/</link>
</image>'

	echo "<lastBuildDate>$(date -R)</lastBuildDate>"
	wcbase="https://t2sde.org"
	grep 'h2\|datetime\|newslinkid\|<article\|</article' $DOCUMENT_ROOT/index.tmpl |
		sed -e "s,WCBASE,$wcbase,g" \
		-e 's,<article.*>,\n<item>,' -e 's,<\/article,<\/item,' \
		-e 's,.*<h2>\(.*\)<\/h2>.*,    <title>\1<\/title>,' \
		-e 's,.*newslinkid\" href="\(.*\)">,    <link>\1<\/link>,' \
		-e 's,.*<time datetime=\"\(.*\)\">.*<\/time>,    <pubDate>\1<\/pubDate>,'

	echo '</channel>
</rss>'
	exit
elif [ ! -e "$x" ]; then
  echo "Status: 404 Not Found"
  x=404.tmpl
fi

  echo "Content-type: text/html; charset=utf-8"
  echo

  # very ugly include file hackery ,-)
  sed -nf $base/webcore/include.sed "$x" |
  sed 'N;N;s/\n//' | sed -f - "$x" |
  sed -f $base/webcore/convert.sed \
    -e "s,WCDEFAULTMENU,$wcdefaultmenu," \
    -e "s,WCCUSTOMHEADER,$wccustomheader," \
    -e "s,WCCOPYRIGHT,$wccopyright," \
    -e "s,WCBASE,$wcbase,g" -e "s/WCDATE/$dt/" || true

  # remove temp file (we only need due to the sed include hack)
  [ $dyn = 1 ] && rm $x