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|
#!/bin/sh
set -e
usage() {
echo "usage: $0 [-h|--help] [-t <topic>]" >&2
exit
}
die() {
echo "error: $1" >&2
exit 1
}
check_command() {
if ! command -v "$1" >/dev/null; then
die "$1 is not installed. Please install $1 to proceed."
fi
}
parse_yaml() {
if ! yaml_output=$(yq -r "$1" "$2" 2>/dev/null); then
die "YAML file is malformed or does not exist."
fi
echo "$yaml_output"
}
for c in yq mosquitto_sub tput; do check_command $c; done
[ -z "$1" ] && usage
bold=$(tput bold)
rst=$(tput sgr0)
topic=
while [ $# -gt 0 ]; do
case "$1" in
-h|--help)
usage
exit 0
;;
-t|--topic)
topic="$2"
shift
;;
*) ;;
esac
shift
done
[ -z "$topic" ] && die "Topic not provided. Use -t or --topic to specify the topic."
config_dirs="$HOME/.config/homekit /etc/homekit"
config_file=
for dir in $config_dirs; do
if [ -f "$dir/mqtt.yaml" ]; then
config_file="$dir/mqtt.yaml"
break
fi
done
[ -z "$config_file" ] && die "mqtt.yaml not found"
yaml_data=$(parse_yaml "." "$config_file")
required_fields=".remote_addr.host, .remote_addr.port, .default_client_creds, .creds"
if ! echo "$yaml_data" | yq -e "$required_fields" >/dev/null; then
die "YAML file is missing required fields."
fi
remote_host=$(echo "$yaml_data" | yq -r ".remote_addr.host")
remote_port=$(echo "$yaml_data" | yq -r ".remote_addr.port")
default_client_creds=$(echo "$yaml_data" | yq -r ".default_client_creds")
username=$(echo "$yaml_data" | yq -r ".creds.$default_client_creds.username")
password=$(echo "$yaml_data" | yq -r ".creds.$default_client_creds.password")
homekit_dir="$(realpath "$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)/../")"
cafile="$homekit_dir/misc/mqtt_ca.crt"
topic_regex="${topic%#}"
topic_regex="${topic_regex//\//\\/}"
mosquitto_sub -h "$remote_host" -p "$remote_port" --cafile "$cafile" -t "$topic" -u "$username" -P "$password" -v | while IFS= read -r line; do
binary_data="$(echo "$line" | sed "s/^${topic_regex}[^ ]* //")"
echo -n "${bold}$(echo "$line" | awk '{print $1}')${rst}"
echo -n " "
echo -n "$binary_data" | xxd -p | tr -d '\n' | sed 's/../& /g'
echo
# echo
done
|
