111 lines
2.7 KiB
Plaintext
111 lines
2.7 KiB
Plaintext
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#!/usr/bin/env bash
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http_version=0.5.1 # this script version.
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set -o monitor # for job control.
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set -o errexit # exit if error occurs.
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# Defaults
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HOST=0.0.0.0
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PORT=8000
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DIR=$PWD
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# Check Python 3
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if ! hash python3 2>/dev/null; then
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echo -e "$0: Python 3 executable not found." >&2
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exit 1
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fi
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http_print_help() {
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cat <<-EOF
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Run Python 3 builtin HTTP Server.
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Usage: http [-v|--version] [-h|--help] [-c|--cgi] [-f|--firefox]
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[<host>[:<port>]] [<port>] [<dir>]
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Options:
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-c, --cgi run as CGI Server.
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-f, --firefox open URL in Firefox.
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-h, --help print this help message and exit.
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-v, --version print version and exit.
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Arguments:
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<host> host to bind. Default: 0.0.0.0
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<port> port to bind. Default: 8000
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<dir> directory to serve. Default: current directory.
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EOF
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exit 0
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}
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while (( "$#" )); do
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case "$1" in
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-c|--cgi)
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CGI='--cgi';;
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-f|--firefox)
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FOX=1;;
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-h|--help)
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http_print_help;;
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-v|--version)
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echo "http v$http_version"; exit 0;;
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-*|--*)
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echo -e "$0: Bad option: $1" >&2
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exit 1
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;;
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*)
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if [ -d "$1" ]
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then
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# If direcory exists set it as root DIR.
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DIR="$1"
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elif [[ "$1" =~ ^[0-9]+$ ]]
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then
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# If value is integer set it as PORT.
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PORT="$1"
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elif [[ "$1" =~ \
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^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]
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then
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# Value like IPv4 address. Not necessary.
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HOST="$1"
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elif [[ "$1" == 'localhost' ]]
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then
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# Nuff said.
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HOST="$1"
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elif [ "$(grep -o : <<<"$1")" ]
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then
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# If value like 'localhost:4000'
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HOST="$(echo "$1" | cut -d ":" -f 1)"
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PORT="$(echo "$1" | cut -d ":" -f 2)"
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else
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echo -e "$0: Bad option: $1$" >&2
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exit 1
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fi
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;;
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esac
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shift
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done
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# Check available port and retry 3 times.
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retries=1
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while [ "$(ss -tanp | grep -o "$PORT")" ]; do
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if [[ "$retries" == 4 ]]
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then
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echo -e "Max number of retries reached! Exiting." >&2
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exit 1
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else
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:
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fi
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# Increase port if is already in use.
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PORT_USED="$PORT"
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let PORT++
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echo -e "Port $PORT_USED is already in use!
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Switching to: $PORT" | sed 's/^ *//g' >&2
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let retries++
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done
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# Run Python http.server.
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echo -e "Serve: $DIR\tPress ^C to stop serving."
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python3 -m http.server $CGI --bind $HOST $PORT --directory $DIR &
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[[ "$FOX" == 1 ]] && firefox http://$HOST:$PORT/
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fg
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