-#!/bin/zsh
+#!/bin/sh
-# basic functions
-die() {
- echo "$*" >/dev/stderr
- exit 1
-}
-debug() { #change to false to disable debugging
- #true && echo "$*" >>debug
- true && [ -n "$*" ] && echo -E "$*" >>/dev/stderr
- true && [ -z "$*" ] && tee /dev/stderr
-}
+for n in "$@"; do case ${n%%=*} in
+ data) _DATA="${n#data=}";;
+ exec) _EXEC="${n#exec=}";;
+ debug) DEBUG="${n#debug=}";;
+esac; done
+
+[ ! "${_EXEC%/}" ] && _EXEC="$(realpath "${0%/*}")" || _EXEC="${_EXEC%/}"
+[ ! "${_DATA%/}" ] && _DATA=. || _DATA="${_DATA%/}"
+[ "$DEBUG" ] && exec 2>>"$DEBUG"
+
+mkdir -p "${_DATA}/cache" "${_DATA}/mappings" "${_DATA}/export" "${_DATA}/lock" "${_DATA}/ical" "${_DATA}/vcard"
-# this program is supposed to be symlinked into a http root directory
-# we will use the http root as object storage (data directory) and call sub
-# programs from the directory in which the real executable resides
-# therefore we need to identify the code and data directories _EXEC and _DATA
-call=$0
-real=$call
-while [ -L "$real" ]; do
- real="$(stat -c %N "$real" |sed -r "s:..*. -> .(.*).$:\1:")"
-done
+debug() {
+ local dbg=/dev/stderr
+ if [ ! "$DEBUG" ]; then
+ [ "$#" -gt 0 ] && : || cat;
+ elif [ "$#" -gt 0 ]; then
+ printf '%s\n' "$@" >>"$dbg"
+ else
+ tee -a "$dbg"
+ fi
+}
-_EXEC="$(dirname "$real")" #execution directory
-_DATA="$(dirname "$call")" #storage directory
+. "$_EXEC/cgilite/cgilite.sh"
+. "$_EXEC/cgilite/session.sh"
-debug "Execution dir: $_EXEC"
-debug "Storage dir: $_DATA"
+. "$_EXEC/l10n.sh"
-[ -w "$_DATA" ] && [ -d "$_DATA" ] || die "storage directory must be writable"
+_PATH="$(PATH "/${PATH_INFO}")"
+ACTION="$(GET a)"
-# create directories for object storage
-for each in "$_DATA"/{vcard,mappings,courses,cache}; do
- [ ! -e "$each" ] && mkdir "$each"
- [ -w "$each" ] && [ -d "$each" ] || die "storage $each must be a writable directory"
-done
+message="$(COOKIE message)"
+[ "$message" ] && SET_COOKIE 0 message=''
-# create htaccess file
-[ -f .htaccess ] || cat >.htaccess <<EOF
-Options +ExecCGI
-AddHandler cgi-script .cgi
-DirectoryIndex index.cgi
-EOF
-[ -f .htaccess ] || die "no htaccess file present and unable to create one"
+checked(){
+ if [ "$1" = "$2" ] || [ "$1" -eq "$2" ]; then
+ printf 'checked="checked"'
+ fi 2>/dev/null
+}
+selected(){
+ if [ "$1" = "$2" ] || [ "$1" -eq "$2" ]; then
+ printf 'selected="selected"'
+ fi 2>/dev/null
+}
-. "$_EXEC/cgi.sh"
+yield_page() {
+ local class="$1" style="$2"
+ printf 'Content-Type: text/html; charset=utf-8\r\n\r\n'
+ { printf '
+ [html [head
+ [title Confetti]
+ [meta name="viewport" content="width=device-width"]
+ [link rel="stylesheet" type="text/css" href="/cgilite/common.css"]
+ [link rel="stylesheet" type="text/css" href="/style.css"]
+ '
+ [ -n "$style" ] && printf '
+ [link rel="stylesheet" type="text/css" href="%s"]
+ ' "$style"
+ printf '
+ ] [body #top class="%s"
+ ' "$class"
+ printf '[ul .menu [li [a "/cards/" . %s]][li [a "/courses/" . %s]]]' "$(l10n cards)" "$(l10n courses)"
+ [ "$message" ] && printf '[p #message\n%s\n]' "$(l10n "$message")"
+ cat
+ printf '] ]'
+ } \
+ | "${_EXEC}/cgilite/html-sh.sed"
+}
-cgi_get
-debug "$_GET"
+topdir="${_PATH#/}"
+topdir="/${topdir%%/*}"
-. "$_EXEC/page.sh"
+case ${_PATH} in
+ /) REDIRECT /cards/
+ ;;
+ /export/*.pdf) . "$_EXEC/cgilite/file.sh"
+ FILE "${_DATA}/${_PATH}" "application/pdf"
+ ;;
+ /export/*) . "$_EXEC/cgilite/file.sh"
+ FILE "${_DATA}/${_PATH}"
+ ;;
+ *)
+ if [ -d "${_EXEC}/${_PATH}" -a -x "${_EXEC}/${_PATH}/index.cgi" ]; then
+ . "${_EXEC}/${_PATH}/index.cgi"
+ elif [ -f "${_EXEC}/${_PATH}" -a -x "${_EXEC}/${_PATH}" ]; then
+ . "${_EXEC}/${_PATH}"
+ elif [ -f "${_EXEC}/${_PATH}" -a -r "${_EXEC}/${_PATH}" ]; then
+ . "$_EXEC/cgilite/file.sh"
+ FILE "${_EXEC}/${_PATH}"
+ elif [ -d "${_EXEC}/${topdir}" -a -x "${_EXEC}/${topdir}/index.cgi" ]; then
+ . "${_EXEC}/${topdir}/index.cgi"
+ else
+ printf '%s\r\n' 'Status: 404 Not Found' 'Content-Length: 0' ''
+ fi
+ ;;
+esac