#!/bin/sh

## live-build(7) - System Build Scripts
## Copyright (C) 2015 Daniel Baumann <mail@daniel-baumann.ch>
## Copyright (C) 2015 Richard Nelson <unixabg@gmail.com>
##
## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
## This is free software, and you are welcome to redistribute it
## under certain conditions; see COPYING for details.


# Including common functions
. /usr/lib/live/build.sh

# Reading defaults
if [ -r /etc/default/live-build-cgi ]
then
	. /etc/default/live-build-cgi
else
	echo "E: /etc/default/live-build-cgi missing"
	exit 1
fi

_HOSTNAME="$(hostname -f)"

# Turn on debug if true
if [ "${_DEBUG}" = "true" ]
then
	set -x
fi

# Sending http header
echo "Content-type: text/html"
echo

# Sending html header
cat "${_TEMPLATES}"/header.html

# CGI
if [ -z "${QUERY_STRING}" ]
then
	# Sending html form
	echo "<h2><div style='color: red;'>Error: No cgi build specified.</div></h2>"
else
	# Converting spaces:	sed 's/+/ /g'
	# Converting '@':	sed 's/%40/@/g'
	# Converting ':':	sed 's/%3A/:/g'
	# Converting ';':	sed 's/%3B/\;/g'
	# Converting '/':	sed 's/%2F/\//g'
	# Converting '~':	sed 's/%7E/\~/g'
	# Converting '=':	sed 's/%3D/=/g'
	# Converting '+':	sed 's/%2B/+/g'

	# Standard options
	_CGI_BUILD=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])cgi_build=[0-9.]+' | cut -f 2 -d '=' | head -n1)

	#echo ${_CGI_BUILD}
	#echo ${QUERY_STRING}

	# FIXME: filter invalid options
	unset QUERY_STRING

	if [ -z "${_CGI_BUILD}" ]
	then
		echo "<h2><div style='color: red;'>Error: No cgi build specified.</div></h2>"
		sed -e "s/VERSION/${VERSION}/" "${_TEMPLATES}"/footer.html
		_CGI_BUILD="BAD"
	fi

	# Getting number of builds pending.
	_QUEUENUM=$(ls "${_TEMPDIR}"/*.build | wc -l)

	# Getting number of builds processing.
	_PNUM=$(ls -d "${_TEMPDIR}"/*/ | wc -l)

	# Find the build if exists and populate status html else respond no build.
	#echo "${QUERY_STRING}"
	if [ -f "${_TEMPDIR}"/"${_CGI_BUILD}".build ]
	then
		# If build file exists in the tempdir folder then the build is pending.
		_STATUS="PENDING"
		. "${_TEMPDIR}"/"${_CGI_BUILD}".build

	elif [ -f "${_TEMPDIR}"/"${_CGI_BUILD}"/"${_CGI_BUILD}".build ]
	then
		# If build file exists the tempdir/build folder the build is running.
		_STATUS="RUNNING"
		. "${_TEMPDIR}"/"${_CGI_BUILD}"/"${_CGI_BUILD}".build

	elif [ -f "${_DESTDIR}"/"${_CGI_BUILD}"/build ]
	then
		# If build file exists the tempdir/build folder the build is running.
		_STATUS="COMPLETED"
		. "${_DESTDIR}"/"${_CGI_BUILD}"/build

	else
		_STATUS="Bad or malformed"
	fi

	# Test whether to send out information
	if [ "${_STATUS}" != "Bad or malformed" ]
	then
		# Send out the html
		# Note: On each string remember to use a delimeter that is not in the string.
		sed -e "s/BUILD/${_CGI_BUILD}/g" \
		    -e "s/EMAIL/${_EMAIL}/" \
		    -e "s/STATUS/${_STATUS}/" \
		    -e "s/QUEUENUM/${_QUEUENUM}/" \
		    -e "s/PNUM/${_PNUM}/" \
		    -e "s/LB_BINARY_IMAGES/${LB_BINARY_IMAGES}/" \
		    -e "s/LB_DISTRIBUTION/${LB_DISTRIBUTION}/" \
		    -e "s#_LB_CONFIG#${_LB_CONFIG}#" \
		    -e "s/LB_APT_INDICES/${LB_APT_INDICES}/" \
		    -e "s/LB_APT/${LB_APT}/" \
		    -e "s/_LB_CGIPACKAGES/${_LB_CGIPACKAGES}/" \
		    -e "s/LB_ARCHITECTURES/${LB_ARCHITECTURES}/" \
		    -e "s/LB_ARCHIVE_AREAS/${LB_ARCHIVE_AREAS}/" \
		    -e "s/LB_CHROOT_FILESYSTEM/${LB_CHROOT_FILESYSTEM}/" \
		    -e "s/LB_LINUX_FLAVOURS/${LB_LINUX_FLAVOURS}/" \
		    -e "s/LB_SECURITY/${LB_SECURITY}/" \
		    -e "s#LB_BOOTAPPEND_INSTALL#${LB_BOOTAPPEND_INSTALL}#" \
		    -e "s#LB_BOOTAPPEND_LIVE#${LB_BOOTAPPEND_LIVE}#" \
		    -e "s/LB_BOOTLOADER/${LB_BOOTLOADER}/" \
		    -e "s/LB_DEBIAN_INSTALLER/${LB_DEBIAN_INSTALLER}/" \
		    -e "s#LB_ISO_APPLICATION#${LB_ISO_APPLICATION}#" \
		    -e "s#LB_ISO_PREPARER#${LB_ISO_PREPARER}#" \
		    -e "s#LB_ISO_PUBLISHER#${LB_ISO_PUBLISHER}#" \
		    -e "s#LB_ISO_VOLUME#${LB_ISO_VOLUME}#" \
		    -e "s/LB_MEMTEST/${LB_MEMTEST}/" \
		    -e "s#LB_NET_ROOT_PATH#${LB_NET_ROOT_PATH}#" \
		    -e "s/LB_NET_ROOT_SERVER/${LB_NET_ROOT_SERVER}/" \
		    -e "s#SERVER#${_SERVER}#g" \
		    -e "s/LB_SOURCE_IMAGES/${LB_SOURCE_IMAGES}/" \
		    -e "s/LB_SOURCE/${LB_SOURCE}/" \
		"${_TEMPLATES}"/status.html

	else
		echo "Your request of ${_CGI_BUILD}, resulted in a malformed request or build number not found. All requests are logged."
	fi
	echo "$(date +%b\ %d\ %H:%M:%S) ${_HOSTNAME} live-build-status: ${_STATUS} build status requested for (${_CGI_BUILD}) from ${REMOTE_ADDR}." >> /var/log/live/live-build-status
fi
sed -e "s/VERSION/${VERSION}/" "${_TEMPLATES}"/footer.html