#!/bin/bash

# Sets up directory / file permissions that work for most server installations.
#
# General strategy:
# Default:
#      All dirs get chmod'ed 0755
#      All files get chmod`ed 0644
# Site 'files' exceptions:
#      Site 'files' dir (and all subdirs) get chmod'ed 0771
#      All files in site 'files' dir (and below) get chmod'ed 0664
# Site 'backups' exceptions:
#      Site 'backups' dir (and all subdirs) get chmod'ed 0700
#      All files in 'backups' dir (and below) get chmod'ed 0600
#
# On some installations, it is necessary to set the 'files' directory group owner.
# This can be done with the commands (run as root):
# chgrp apache <files dir> ; chmod g+ws <files dir>

# include library file
. "`dirname ${0}`/drupalLibrary.sh"


printUsage() {
	echo -e " "
	echo -e "Sets up Drupal install permissions.  (See script header for specifics.)"
	echo -e " "
	echo -e "Usage:"
	echo -e "$0 -quiet ( <INSTALL> | all ) [install group root dir]"
	echo -e "where:"
	echo -e " "
	echo -e "-quiet suppresses extra script output."
	echo -e " "
	outputInstallGroupUsage foo
	echo -e " "
}


#########

# Param handling
if [ $# -eq 0 ]; then
	printUsage
	exit 0
fi

# Handle flags
while (true); do
	case "${1}" in
	-quiet )
		pQuiet="-quiet"
		shift
		;;
	* )
		break
		;;
	esac
done
if [ -z "${pQuiet}" ]; then
	echo " "
fi

# process Group Root Dir
pRootDir="`getGroupRootDir "${2}"`"
errorStr="`validateGroupRootDir "${pRootDir}"`"
if [ -n "${errorStr}" ]; then
	echo -e "${errorStr}\n"
	printUsage
	exit 1
fi

pInstall="$1"
if [ "`toLower "${pInstall}"`" == "all" ]; then
	pInstall="`getSitesInGroupDir "${pRootDir}"`"
else
	# Validate the installation
	errorStr="`validateSite "${pInstall}" "${pRootDir}"`"
	if [ -n "${errorStr}" ]; then
		echo -e "** Error with specified install: ${errorStr}.  Aborting.\n"
		exit 1
	fi
fi

# process
first="yup"
for site in ${pInstall}; do
	if [ -z "${pQuiet}" ]; then
		if [ -n "${first}" ]; then
			echo " "
		fi
		echo -e "Processing site '${site}'"
	fi
	targetDir="`getTargetDir "${site}" "${pRootDir}"`"
	filesDir="`getFileUploadDir "${site}" "${pRootDir}"`"
	backupDir="`getBackupDir "${site}" "${pRootDir}"`"

	# For each directory, run 'radchmod' process.  Returns error if dir doesn't exist.
	radchmod 0755 0644 "${targetDir}" || {
		echo -e "\t** Site target dir '${targetDir}' does not exist.  Skipping ${site}.";
		continue;
	}
	# TODO Hide chmod errors from this command (and add flag '-showwarnings' to to show them)
	radchmod 0775 0664 "${filesDir}" || {
		echo -e "\t** Site files dir '${filesDir}' does not exist.  Proceeding."
	}
	radchmod 0700 0600 "${backupDir}" || {
		echo -e "\t** Site backup dir '${backupDir}' does not exist.  Proceeding."
	}

	if [ -z "${pQuiet}" ]; then
		echo -e "Done with site '${site}'"
		echo -e "\tRemember, it might be required to set 'files' dir group ownership."
		echo -e "\t\tRun as root:"
		echo -e "\t\tchgrp apache \"${filesDir}\" ; chmod g+ws \"${filesDir}\" ; pushd \"${filesDir}\" ; find . -exec chmod g+w {} \\; -exec chgrp apache {} \\; ; find . -type d -exec chmod g+s {} \\; ; popd"
		echo -e " "
	fi

	first=""
done


# Done
if [ -z "${pQuiet}" ]; then
	echo -e "\n** Done."
fi