#!/bin/zsh
-call=$0
-real=$call
-
+# basic functions
die() {
echo "$*" >/dev/stderr
exit 1
}
+debug() { #change to false to disable debugging
+ #true && echo "$*" >>debug
+ true && echo "$*" >>/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
+# 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
_EXEC="$(dirname "$real")" #execution directory
-_STOR="$(dirname "$call")" #storage directory
+_DATA="$(dirname "$call")" #storage directory
+
+debug "Execution dir: $_EXEC"
+debug "Storage dir: $_DATA"
+
+[ -w "$_DATA" ] && [ -d "$_DATA" ] || die "storage directory must be writable"
+
+# create directories for object storage
+for each in "$_DATA"/{vcard,mappings,courses}; do
+ [ ! -e "$each" ] && mkdir "$each"
+ [ -w "$each" ] && [ -d "$each" ] || die "storage $each must be a writable directory"
+done
+
+# create htaccess file
+[ -f .htaccess ] || cat >.htaccess <<EOF
+Options +ExecCGI
+AddHandler cgi-script .cgi
+DirectoryIndex index.cgi
+EOF
+[ -f .htaccess ] || die "no htaccess file present and unable to create one"
+
+. "$_EXEC/cgi.sh"
-[ -w "$_EXEC" ] && [ -d "$_EXEC" ] || die "storage directory must be writable"
+cgi_get
+debug "$_GET"
-echo ex: $_EXEC
-echo st: $_STOR
+. "$_EXEC/page.sh"