#!/bin/sh

# cgi - simple webfrontend for live-helper
# Copyright (C) 2006-2010 Daniel Baumann <daniel@debian.org>
#
# live-helper 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.

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

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

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

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

# CGI
if [ -z "${QUERY_STRING}" ]
then
	# Sending html form
	sed -e "s#LH_MIRROR_BOOTSTRAP#${LH_MIRROR_BOOTSTRAP}#" \
	    -e "s#LH_MIRROR_BINARY_SECURITY#${LH_MIRROR_BINARY_SECURITY}#" \
	    -e "s#LH_MIRROR_BINARY#${LH_MIRROR_BINARY}#" \
	    -e "s/VERSION/${VERSION}/" \
	    -e "s/DATE/`date +%Y%m%d-%H:%M`/" \
	"${_TEMPLATES}"/form.html
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'

	# Translate parameters
	QUERY_STRING=$(echo "${QUERY_STRING}" | sed -e 's/%2F/\//g' -e 's/+/ /g' -e 's/%3B/;/g' -e 's/%7E/~/g' -e 's/%3A/:/g' -e 's/%40/@/g')
	# Debug the filtering string
	# echo ${QUERY_STRING}

	# Email
	_EMAIL=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])email=[0-9,a-z,A-Z,.,_,-,@]+' | cut -f 2 -d '=' | head -n1)

	# Standard options
	LH_BINARY_IMAGES=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])binary_images=[a-z,-]+' | cut -f 2 -d '=' | head -n1)
	LH_DISTRIBUTION=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])distribution=[a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_PACKAGES_LISTS=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])packages_lists=[0-9,a-z,-]+' | cut -f 2 -d '=' | head -n1)
	LH_PACKAGES=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])packages=[0-9,a-z,A-Z,., ,_,-]+' | cut -f 2 -d '=' | head -n1)

	# Advanced bootstrap options
	LH_ARCHITECTURE=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])architecture=[0-9,a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_BOOTSTRAP_FLAVOUR=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])bootstrap_flavour=[a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_MIRROR_BOOTSTRAP=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])mirror_bootstrap=[0-9,a-z,A-Z,.,~,:,/,_,-]+' | cut -f 2 -d '=' | head -n1)
	LH_MIRROR_BINARY=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])mirror_binary=[0-9,a-z,A-Z,.,~,:,/,_,-]+' | cut -f 2 -d '=' | head -n1)
	LH_MIRROR_BINARY_SECURITY=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])mirror_binary_security=[0-9,a-z,A-Z,.,~,:,/,_,-]+' | cut -f 2 -d '=' | head -n1)
	LH_ARCHIVE_AREAS=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])archive_areas=[a-z]+' | cut -f 2 -d '=' | head -n1)

	# Advanced chroot options
	LH_CHROOT_FILESYSTEM=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])chroot_filesystem=[0-9,a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_LINUX_FLAVOURS=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])linux_flavours=[0-9,a-z,-]+' | cut -f 2 -d '=' | head -n1)
	LH_SECURITY=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])security=[a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_SYMLINKS=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])symlinks=[a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_SYSVINIT=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])sysvinit=[a-z]+' | cut -f 2 -d '=' | head -n1)

	# Advanced binary options
	LH_BINARY_INDICES=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])binary_indices=[a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_BOOTAPPEND=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])bootappend=[0-9,a-z,A-Z,., ,_,+,-]+' | cut -f 2 -d '=' | head -n1)
	LH_BOOTLOADER=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])bootloader=[a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_DEBIAN_INSTALLER=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])debian_installer=[a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_ENCRYPTION=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])encryption=[0-9,a-z,A-Z]+' | cut -f 2 -d '=' | head -n1)
	LH_HOSTNAME=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])hostname=[0-9,a-z,A-Z,.,-]+' | cut -f 2 -d '=' | head -n1)
	LH_ISO_APPLICATION=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])iso_application=[0-9,a-z,A-Z,., ,~,;,:,/,_,-]+' | cut -f 2 -d '=' | head -n1)
	LH_ISO_PREPARER=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])iso_preparer=[0-9,a-z,A-Z,., ,~,;,:,/,_,-]+' | cut -f 2 -d '=' | head -n1)
	LH_ISO_PUBLISHER=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])iso_publisher=[0-9,a-z,A-Z,., ,~,;,:,/,_,/,-]+' | cut -f 2 -d '=' | head -n1)
	LH_ISO_VOLUME=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])iso_volume=[0-9,a-z,A-Z,., ,~,;,:,/,_,-]+' | cut -f 2 -d '=' | head -n1)
	LH_MEMTEST=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])memtest=[0-9,a-z,A-Z,.,_,-]+' | cut -f 2 -d '=' | head -n1)
	LH_NET_ROOT_PATH=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])net_path=[0-9,a-z,A-Z,.,_,/,-]+' | cut -f 2 -d '=' | head -n1)
	LH_NET_ROOT_SERVER=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])net_server=[0-9,a-z,A-Z,.,_,-]+' | cut -f 2 -d '=' | head -n1)
	LH_USERNAME=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])username=[0-9,a-z,A-Z,.,-]+' | cut -f 2 -d '=' | head -n1)

	# Advanced source options
	LH_SOURCE=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])source=[a-z]+' | cut -f 2 -d '=' | head -n1)
	LH_SOURCE_IMAGES=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])source_images=[a-z]+' | cut -f 2 -d '=' | head -n1)

	# Unofficial options
	_CUSTOM_BOOTSTRAP=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])custom_bootstrap=[0-9,a-z,A-Z,., ,~,;,:,/,_,-]+' | cut -f 2 -d '=' | head -n1)
	_CUSTOM_BINARY=$(echo "${QUERY_STRING}" | grep -oE '(^|[?&])custom_binary=[0-9,a-z,A-Z,., ,~,;,:,/,_,-]+' | cut -f 2 -d '=' | head -n1)

	# FIXME: filter invalid options
	unset QUERY_STRING

	if [ -z "${_EMAIL}" ]
	then
		echo "<h2><div style='color: red;'>Error: No email address specified.</div></h2>"

		sed -e "s#LH_MIRROR_BOOTSTRAP#${LH_MIRROR_BOOTSTRAP}#" \
		    -e "s#LH_MIRROR_BINARY_SECURITY#${LH_MIRROR_BINARY_SECURITY}#" \
		    -e "s#LH_MIRROR_BINARY#${LH_MIRROR_BINARY}#" \
		    -e "s/VERSION/${VERSION}/" \
		    -e "s/DATE/`date +%Y%m%d-%H:%M`/" \
		"${_TEMPLATES}"/form.html

		exit
	fi

	# Getting build identifier
	_BUILD=$(date +%Y%m%d.%H%M%S.%N)

	#echo "${QUERY_STRING}"
	# Sending html confirmation
	# Note: On each string remember to use a delimeter that is not in the string.
	sed -e "s/BUILD/${_BUILD}/g" \
	    -e "s/EMAIL/${_EMAIL}/" \
	    -e "s/LH_BINARY_IMAGES/${LH_BINARY_IMAGES}/" \
	    -e "s/LH_DISTRIBUTION/${LH_DISTRIBUTION}/" \
	    -e "s/LH_PACKAGES_LISTS/${LH_PACKAGES_LISTS}/" \
	    -e "s/LH_PACKAGES/${LH_PACKAGES}/" \
	    -e "s/LH_ARCHITECTURE/${LH_ARCHITECTURE}/" \
	    -e "s/LH_BOOTSTRAP_FLAVOUR/${LH_BOOTSTRAP_FLAVOUR}/" \
	    -e "s#LH_MIRROR_BOOTSTRAP#${LH_MIRROR_BOOTSTRAP}#" \
	    -e "s#LH_MIRROR_BINARY_SECURITY#${LH_MIRROR_BINARY_SECURITY}#" \
	    -e "s#LH_MIRROR_BINARY#${LH_MIRROR_BINARY}#" \
	    -e "s/LH_ARCHIVE_AREAS/${LH_ARCHIVE_AREAS}/" \
	    -e "s/LH_CHROOT_FILESYSTEM/${LH_CHROOT_FILESYSTEM}/" \
	    -e "s/LH_LINUX_FLAVOURS/${LH_LINUX_FLAVOURS}/" \
	    -e "s/LH_SECURITY/${LH_SECURITY}/" \
	    -e "s/LH_SYMLINKS/${LH_SYMLINKS}/" \
	    -e "s/LH_SYSVINIT/${LH_SYSVINIT}/" \
	    -e "s/LH_BINARY_INDICES/${LH_BINARY_INDICES}/" \
	    -e "s/LH_BOOTAPPEND/${LH_BOOTAPPEND}/" \
	    -e "s/LH_BOOTLOADER/${LH_BOOTLOADER}/" \
	    -e "s/LH_DEBIAN_INSTALLER/${LH_DEBIAN_INSTALLER}/" \
	    -e "s/LH_ENCRYPTION/${LH_ENCRYPTION}/" \
	    -e "s/LH_HOSTNAME/${LH_HOSTNAME}/" \
	    -e "s#LH_ISO_APPLICATION#${LH_ISO_APPLICATION}#" \
	    -e "s#LH_ISO_PREPARER#${LH_ISO_PREPARER}#" \
	    -e "s#LH_ISO_PUBLISHER#${LH_ISO_PUBLISHER}#" \
	    -e "s#LH_ISO_VOLUME#${LH_ISO_VOLUME}#" \
	    -e "s/LH_MEMTEST/${LH_MEMTEST}/" \
	    -e "s#LH_NET_ROOT_PATH#${LH_NET_ROOT_PATH}#" \
	    -e "s/LH_NET_ROOT_SERVER/${LH_NET_ROOT_SERVER}/" \
	    -e "s#SERVER#${_SERVER}#g" \
	    -e "s/LH_USERNAME/${LH_USERNAME}/" \
	    -e "s/LH_SOURCE_IMAGES/${LH_SOURCE_IMAGES}/" \
	    -e "s/LH_SOURCE/${LH_SOURCE}/" \
	    -e "s#CUSTOM_BOOTSTRAP#${_CUSTOM_BOOTSTRAP}#" \
	    -e "s#CUSTOM_BINARY#${_CUSTOM_BINARY}#" \
	"${_TEMPLATES}"/build.html

	# Creating temporary directory
	mkdir -p "${_TEMPDIR}"

# Writing build file
cat > "${_TEMPDIR}"/"${_BUILD}".build << EOF
# live-helper.cgi "${VERSION}" build file
# `date -R`

_BUILD="${_BUILD}"
_EMAIL="${_EMAIL}"

# Standard options
LH_BINARY_IMAGES="${LH_BINARY_IMAGES}"
LH_DISTRIBUTION="${LH_DISTRIBUTION}"
LH_PACKAGES_LISTS="${LH_PACKAGES_LISTS}"
LH_PACKAGES="${LH_PACKAGES}"

# Advanced bootstrap options
LH_ARCHITECTURE="${LH_ARCHITECTURE}"
LH_MIRROR_BOOTSTRAP="${LH_MIRROR_BOOTSTRAP}"
LH_MIRROR_BINARY_SECURITY="${LH_MIRROR_BINARY_SECURITY}"
LH_MIRROR_BINARY="${LH_MIRROR_BINARY}"
LH_ARCHIVE_AREAS="${LH_ARCHIVE_AREAS}"

# Advanced chroot options
LH_CHROOT_FILESYSTEM="${LH_CHROOT_FILESYSTEM}"
LH_LINUX_FLAVOURS="${LH_LINUX_FLAVOURS}"
LH_SECURITY="${LH_SECURITY}"
LH_SYMLINKS="${LH_SYMLINKS}"
LH_SYSVINIT="${LH_SYSVINIT}"

# Advanced binary options
LH_BINARY_INDICES="${LH_BINARY_INDICES}"
LH_BOOTAPPEND="${LH_BOOTAPPEND}"
LH_BOOTLOADER="${LH_BOOTLOADER}"
LH_DEBIAN_INSTALLER="${LH_DEBIAN_INSTALLER}"
LH_ENCRYPTION="${LH_ENCRYPTION}"
LH_HOSTNAME="${LH_HOSTNAME}"
LH_ISO_APPLICATION="${LH_ISO_APPLICATION}"
LH_ISO_PREPARER="${LH_ISO_PREPARER}"
LH_ISO_PUBLISHER="${LH_ISO_PUBLISHER}"
LH_ISO_VOLUME="${LH_ISO_VOLUME}"
LH_MEMTEST="${LH_MEMTEST}"
LH_NET_ROOT_PATH="${LH_NET_ROOT_PATH}"
LH_NET_ROOT_SERVER="${LH_NET_ROOT_SERVER}"
LH_USERNAME="${LH_USERNAME}"

# Advanced source options
LH_SOURCE_IMAGES="${LH_SOURCE_IMAGES}"
LH_SOURCE="${LH_SOURCE}"

# Unofficial options
_CUSTOM_BOOTSTRAP="${_CUSTOM_BOOTSTRAP}"
_CUSTOM_BINARY="${_CUSTOM_BINARY}"

# Other
LH_REPOSITORIES="${LH_REPOSITORIES}"
EOF

	echo "$(date +%b\ %d\ %H:%M:%S) ${HOSTNAME} live-helper.cgi: add web build (${_BUILD})." >> /var/log/live
	echo "$(date +%b\ %d\ %H:%M:%S) ${HOSTNAME} live-helper.cgi: options ${_BUILD} |email ${_EMAIL}|binary_images ${LH_BINARY_IMAGES}|distribution ${LH_DISTRIBUTION}|packages_lists ${LH_PACKAGES_LISTS}|packages ${LH_PACKAGES}|architecture ${LH_ARCHITECTURE}|mirror_bootstrap_security ${LH_MIRROR_BOOTSTRAP}|mirror_bootstrap ${LH_MIRROR_BOOTSTRAP}|mirror_binary_security ${LH_MIRROR_BINARY_SECURITY}|mirror_binary ${LH_MIRROR_BINARY}|archive_areas ${LH_ARCHIVE_AREAS}|chroot_filesystem ${LH_CHROOT_FILESYSTEM}|linux_flavours ${LH_LINUX_FLAVOURS}|security ${LH_SECURITY}|symlinks ${LH_SYMLINKS}|sysvinit ${LH_SYSVINIT}|binary_indices ${LH_BINARY_INDICES}|bootappend ${LH_BOOTAPPEND}|bootloader ${LH_BOOTLOADER}|debian_installer ${LH_DEBIAN_INSTALLER}|encryption ${LH_ENCRYPTION}|hostname ${LH_HOSTNAME}|iso_application ${LH_ISO_APPLICATION}|iso_preparer ${LH_ISO_PREPARER}|iso_publisher ${LH_ISO_PUBLISHER}|iso_volume ${LH_ISO_VOLUME}|memtest ${LH_MEMTEST}|net_path ${LH_NET_ROOT_PATH}|net_server ${LH_NET_ROOT_SERVER}|username ${LH_USERNAME}|source_images ${LH_SOURCE_IMAGES}|source ${LH_SOURCE}|custom_bootstrap ${_CUSTOM_BOOTSTRAP}|custom_binary ${_CUSTOM_BINARY}\n" >> /var/log/live
fi

sed -e "s/VERSION/${VERSION}/" "${_TEMPLATES}"/footer.html