require no external index.cgi

[cgilite] / index.cgi

diff --git a/index.cgi b/index.cgi
new file mode 100755 (executable)
index 0000000..6359a0a
--- /dev/null
+++ b/index.cgi
@@ -0,0 +1,73 @@
+#!/bin/zsh
+
+# Copyright 2014, 2015 Paul Hänsch
+#
+# This file is part of shcgi.
+# 
+# shcgi is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# shcgi is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+# 
+# You should have received a copy of the GNU Affero General Public License
+# along with shcgi.  If not, see <http://www.gnu.org/licenses/>. 
+
+export LC_ALL=C
+
+# 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="$0"
+real="$(readlink -f $call)"
+_DATA="$(dirname "$call")"  #storage directory
+_EXEC="${real%/shcgi/index.cgi}"  #execution directory
+
+# basic functions
+die() {
+  echo "$@" >&2
+  exit 1
+}
+
+debug() { #change to false to disable debugging
+  #true && echo "$*" >>debug
+  true && [ -n "$*" ] && echo -E "$*" >>/dev/stderr
+  true && [ -z "$*" ] && tee /dev/stderr
+}
+
+data_dirs(){
+  # create directories for object storage
+
+  [ -d "$_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 "$_DATA/.htaccess" ] || die "no htaccess file present and unable to create one"
+
+. "$_EXEC/shcgi/cgi.sh"
+
+cgi_get
+
+[ -x "$_EXEC/constants.sh" ] && . "$_EXEC/constants.sh"
+
+if [ -n "$_GET[\"action\"]" ]; then
+  . "$_EXEC/shcgi/action.sh"
+elif [ -n "$_GET[\"export\"]" ]; then
+  . "$_EXEC/shcgi/export.sh"
+else
+  . "$_EXEC/shcgi/page.sh"
+fi