#! /bin/bash
#
# Simple HTTP server for the swupd "www" directory. Useful
# for testing swupd bundles locally during development.
# Can be used together with
#   swupd verify -u http://192.168.7.1:8000
# when using runqemu and the default port.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

show_help () {
    echo "$(basename $0) [-p http-port] [-d swupd-www-directory]"
    echo 'Must run in the background. Can be killed with'
    echo '   kill $(pidof swupd-http-server)'
}

set -e

dir=${BUILDDIR:-.}/tmp*/deploy/swupd/*/*/www
port=8000

while getopts "h?p:d:" opt; do
    case "$opt" in
    h|\?)
        show_help
        exit 0
        ;;
    p)  port="$OPTARG"
        ;;
    d)  dir="$OPTARG"
        ;;
    esac
done

count=$(ls -d -1 $dir | wc -l)
if [ $count -eq 0 ]; then
    echo >&2 "$dir does not exist."
    exit 1
fi
if [ $count -gt 1 ]; then
    echo >&2 "$dir is ambiguous. Specify one as parameter:"
    ls >&2 -d -1 $dir
    exit 1
fi

echo "Serving swupd files from" $dir
cd $dir
exec -a swupd-http-server python -m SimpleHTTPServer $port