New script to watch dirs and enforce access rights (only implemented for ~/public_images/* for now...

1 files changed, 104 insertions, 0 deletions

diff --git a/localfixaccessrights b/localfixaccessrights
new file mode 100755
index 0000000..9cf1561
--- /dev/null
+++ b/localfixaccessrights
@@ -0,0 +1,104 @@
+#!/bin/sh
+#
+# /usr/local/bin/localfixaccessrights
+# Copyright 2008 Jonas Smedegaard <dr@jones.dk>
+#
+# $Id: localfixaccessrights,v 1.1 2008-03-20 16:36:53 jonas Exp $
+#
+# Adjust access rights to follow directory-based policy
+#
+# TODO: Implement options:
+#   --help
+#   --run-once
+#   --init
+#   --verbose
+#   --debug
+#
+# TODO: Support overriding defaults in rc-file
+#
+# FIXME: Implement more of the local policy...
+#
+
+set -e
+
+PRG=$(basename "$0")
+
+showhelp() {
+	cat <<EOF
+Usage:   $PRG DIR [ DIR ... ]
+
+Examples:
+    $PRG ~/private* ~/public*
+EOF
+}
+
+exit1()	{
+	echo >&2 "Error: $1"
+	echo >&2 "Exiting..."
+	exit 1
+}
+
+# Sanity checks
+for dir in "$@"; do
+	[ -d "$dir" ] || exit1 "Directory \"$dir\" is not a directory"
+done
+
+getbasename() {
+	basename "$1"
+}
+
+getbits() {
+	ls -l "$1" | awk '{print $1}'
+}
+
+setprivate() {
+	case "$(getbits "$1")" in
+	    drwx------)
+		:
+		;;
+	    d*)
+		chmod -f u=rwx,go= "$path" || true
+		;;
+	    -rw-------)
+		:
+		;;
+	    -*)
+		chmod -f u=rw,go= "$path" || true
+		;;
+	esac
+}
+setpublic() {
+	case "$(getbits "$1")" in
+	    drwxr?xr-x)
+		:
+		;;
+	    d*)
+		chmod -f u=rwx,g+rx,o=rx "$path" || true
+		;;
+	    -rw-r?-r--)
+		:
+		;;
+	    -*)
+		chmod -f u=rw,g+r,g-x,o=r "$path" || true
+		;;
+	esac
+}
+
+fileschanged -r -s created,changed "$@" | while read path; do
+
+	case "$path" in
+	    "$HOME"/public_images/*)
+		case "$(getbasename "$path")" in
+		    .*)
+			setprivate "$path"
+			continue
+			;;
+		esac
+
+		setpublic "$path"
+		continue
+		;;
+	esac
+done
+
+exit 0