#!/bin/zsh
-# Copyright 2014, 2015 Paul Hänsch
+# Copyright 2014 - 2016 Paul Hänsch
#
# This file is part of shcgi.
#
# along with shcgi. If not, see <http://www.gnu.org/licenses/>.
export LC_ALL=C LANG=C
-DBG_ENABLED=false
-DBG_FILE=/dev/stderr
# 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
# therefore we need to identify the code and data directories _EXEC and _DATA
call="$0"
real="$(readlink -f $call)"
-_DATA="$(dirname "$call")" #storage directory
-_EXEC="${real%/shcgi/index.cgi}" #execution directory
+export _DATA="$(dirname "$call")" #storage directory
+export _EXEC="${real%/shcgi/index.cgi}" #execution directory
# put debug options in the local.opts file
+. "$_EXEC/shcgi/misc.sh"
+. "$_EXEC/shcgi/debug.sh"
[ -r "$_DATA/local.opts" ] && . "$_DATA/local.opts"
-# basic functions
-debug() { #change to false to disable debugging
- if [ "$DBG_ENABLED" = true -a -n "$*" ]; then
- echo -E "$@" >>"$DBG_FILE"
- elif [ "$DBG_ENABLED" = true -a -z "$*" ]; then
- tee -a "$DBG_FILE"
- elif [ -z "$*" ]; then
- cat
- fi
-}
-
-die() {
- debug "$@"
- echo -E "$@" >>/dev/stderr
- exit 1
-}
-
-data_dirs(){
- # create directories for object storage
-
- [ -d "$_DATA" -a -w "$_DATA" ] || die "storage directory must be writable"
- for each in "$@"; do
- [ ! -e "$_DATA/$each" ] && mkdir "$_DATA/$each"
- [ -d "$_DATA/$each" -a -w "$_DATA/$each" ] || die "storage \"$_DATA/$each\" must be a writable directory"
- done
-}
-
-# create htaccess file
-[ -f "$_DATA/.htaccess" ] || cat >"$_DATA/.htaccess" <<EOF
-Options +ExecCGI
-AddHandler cgi-script .cgi
-DirectoryIndex index.cgi
-EOF
-[ -f "$_DATA/.htaccess" ] || die "no htaccess file present and unable to create one"
+if [ "$1" = '--server' -o "$1" = '--inetd' -o "$1" = '--ncat' ]; then
+ . "$_EXEC/shcgi/server.sh" $@
+else
+ HTTP_format(){ cat }
+fi
. "$_EXEC/shcgi/cgi.sh"
-cgi_get
+[ -x "$_EXEC/globals.sh" ] && . "$_EXEC/globals.sh"
-[ -x "$_EXEC/constants.sh" ] && . "$_EXEC/constants.sh"
+ PAGE=$(validate "${PAGE:-${_GET[page]}}" '[a-zA-Z0-9_-]+' '')
+ACTION=$(validate "${ACTION:-${_GET[action]}}" '[a-zA-Z0-9_-]+' '')
+STATIC=$(invalidate "${STATIC:-${_GET[static]}}" '(^|.*/)\.\./.*' '')
-if [ -n "$_GET[\"action\"]" ]; then
- . "$_EXEC/shcgi/action.sh"
-else
+if [ -n "$STATIC" ] && [ -e "${_EXEC}/static/${STATIC}" ]; then
+ . "$_EXEC/shcgi/static.sh" "$_EXEC/static/$STATIC"
+elif [ -n "$ACTION" ] && [ -x "${_EXEC}/actions/${ACTION}.sh" ]; then
+ . "${_EXEC}/actions/${ACTION}.sh"
+elif [ -n "$PAGE" ] && [ -x "${_EXEC}/pages/${PAGE}.sh" ]; then
. "$_EXEC/shcgi/page.sh"
-fi
+else
+ printf 'Status: 404 Not Found\r\n'
+ PAGE=error
+ [ -x "${_EXEC}/pages/${PAGE}.sh" ] \
+ && . "$_EXEC/shcgi/page.sh" \
+ || printf '\r\n'
+fi |HTTP_format $@