omit listing of empty courses and vcards

[confetti] / index.cgi

diff --git a/index.cgi b/index.cgi
index 327135f8f21529e9cb029bba29b530e3a22a5ad8..276965f66dcab5ff0846aedf81afe68b4f560a09 100755 (executable)
--- a/index.cgi
+++ b/index.cgi
@@ -1,51 +1,101 @@
-#!/bin/zsh
+#!/bin/sh
 
-# basic functions
-die() {
-  echo "$*" >/dev/stderr
-  exit 1
-}
-debug() { #change to false to disable debugging
-  #true && echo "$*" >>debug
-  true && [ -n "$*" ] && echo "$*" >>/dev/stderr
-  true && [ -z "$*" ] && tee /dev/stderr
-}
+for n in "$@"; do case ${n%%=*} in
+  data) _DATA="${n#data=}";;
+  exec) _EXEC="${n#exec=}";;
+  base) _BASE="${n#base=}";;
+  debug) DEBUG="${n#debug=}";;
+esac; done
+
+[ ! "${_EXEC%/}" ] && _EXEC="$(realpath "${0%/*}")" || _EXEC="${_EXEC%/}"
+[ ! "${_DATA%/}" ] && _DATA="${PWD%/}" || _DATA="${_DATA%/}"
+_BASE="${_BASE%/}"
+[ "$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}")"
+_PATH="${_PATH#${_BASE}}"
+ACTION="$(GET a)"
 
-# create directories for object storage
-for each in "$_DATA"/{vcard,mappings,courses}; do
-  [ ! -e "$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="$2"
+  printf 'Content-Type: text/html; charset=utf-8\r\n\r\n'
+  { printf '
+       [html [head
+          [title Confetti]
+         [meta name="viewport" content="width=device-width"]
+         [link rel="stylesheet" type="text/css" href="%s/cgilite/common.css"]
+         [link rel="stylesheet" type="text/css" href="%s/style.css"]
+    ' "${_BASE}" "${_BASE}"
+    [ -n "$style" ] && printf '
+         [link rel="stylesheet" type="text/css" href="%s"]
+    ' "$style"
+    printf '
+       ] [body #top class="%s"
+    ' "$class"
+    printf '[ul .menu [li [a "%s/cards/" . %s]][li [a "%s/courses/" . %s]]]' "${_BASE}" "$(l10n cards)" "${_BASE}" "$(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 ${_PATH} in
+  "/") REDIRECT "${_BASE}/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