A WebServer built with 100 lines of BASH

Piotr Gabryjeluk: 100 lines of BASH script that simply rock!: "Screenshot Tour

#!/bin/bash

function debug {
    local severity="$1"
    shift
    local message="$@"

    echo -n "`date -u`"    1>&2
    echo -ne '\t'        1>&2
    echo -n "$severity"    1>&2
    echo -ne '\t'        1>&2
    echo "$message"        1>&2
}

function fix_path {
    echo -n "$1" | head -n 1 | sed 's|^[/.-]*||' | sed 's|/\.*|/|g'
}

function serve_dir {
    local dir="`fix_path "$1"`"
    if [ "$dir" = "" ]; then
        dir="./"
    fi
    echo 'HTTP/1.1 200 OK'
    echo 'Content-type: text/html;charset=UTF-8'
    echo
    echo LISTING "$dir"
    echo '
'
    ls -p "$dir" | sed -e 's|^\(.*\)$|\1
|'
}

function serve_file {
    echo 'HTTP/1.1 200 OK'
    echo 'Content-type: application/x-download-this'
    echo
    local file="`fix_path "$1"`"
    debug INFO serving file "$file"
    cat "$file"
}

function process {
    local url="`gawk '{print $2}' | head -n 1`"
    case "$url" in
        */)
            debug INFO Processing "$url" as dir
            serve_dir "$url"
            break
            ;;
        *)
            debug INFO Processing "$url" as file
            serve_file "$url"
            ;;
    esac
}

function serve {
    local port="$1"
    local sin="$2"
    local sout="$3"

    while debug INFO Running nc; do

        nc -l -p "$port" < "$sin" > "$sout" &
        pid="$!"

        debug INFO Server PID: "$pid"

        trap cleanup SIGINT
        head -n 1 "$sout" | process > "$sin"
        trap - SIGINT

        debug INFO Killing nc

        kill "$pid"
    done

    debug INFO Quiting server
}

function cleanup {
    debug INFO Caught signal, quitting...
    rm -Rf "$tmp_dir"
    exit
}

tmp_dir="`mktemp -d -t http_server.XXXXXXXXXX`"
sin="$tmp_dir"/in
sout="$tmp_dir"/out
pid=0
port="$1"

mkfifo "$sin"
mkfifo "$sout"

debug INFO Starting server on port "$port"
serve "$port" "$sin" "$sout"
cleanup

The Linux and Unix Menagerie: Using Mkfifo For Monitoring And Enhanced User Activity Logging

The Linux and Unix Menagerie: Using Mkfifo For Monitoring And Enhanced User Activity Logging

NGinx Web Server Cookbook

FastCGI examples

• Simple CGI

• Ruby CGI

• Catalyst

• Mono Server (ASP.NET)

PHP/FastCGI

• PHP/FastCGI Example

• Drupal

• Drupal + Expires + Gzip (polish language)

• Nginx With PHP As FastCGI Howto (with fcgi-start script)

• PHP in nginx on OS X

• Nginx, PHP and a PHP FastCGI daemon init script (with init script for PHP FastCGI)

• DokuWiki

• MediaWiki

Python/FastCGI

• Python CGI

• Python via Flup/FastCGI/WSGI

• Turbogears

• Django

• Django/CherryPy

• Django example

• Pylons

• Zope

Proxying examples

• Load Balancing Example

• Proxying to Turbogears

• Ruby on Rails / Mongrel

• Rails caching with X-Accel-Redirect

• Rails hosting simplified (Using Nginx)

• Nginx & Mongrel Cluster (with a possible start-stop script)

• Nginx as a Proxy to Nagios

Rewrite examples

• A Hack for having multiple if conditions on a rewrite

Tools

• nginx_config_generator

• nginx.vim (config syntax highlighting for Vim)

• Init.d boot-up script for Linux (Original message (imo))

• Capistrano automatic generation of Nginx & Mongrel configuration for VHosts

Mail examples

• IMAP/POP3 Proxy Example

• IMAP authenticated with a PHP script

• IMAP authenticated with embedded Perl

.htaccess trick shows Development CSS file only to Developer

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If there is one thing I strongly believe is tapping the power of the Internet to learn. It is with always with great happiness that everything I have learnt in the past ten years (since I got online) has been only through tutorial sites.Here are a list of some of that where you can quickly and easily find tutorials, articles and information.

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