Preventing Image hotlinking with lighttpd

Ethereal_Dragon · 04-28-2007, 03:13 PM

Hello all, I don't often frequent this section, as I am not too familiar with these topics.

I have a DLink DNS-323 on my network (listed in sig), and I have put in a fun_plug file to gain telent access to the box, as well as add any new things that I might want to. I recently put lighttpd on it, and the webserver is functional. I am able to view the webpage from my LAN, and over the WAN.

In a nutshell, I would like to enable restrictions on the files hosted on my NAS, so that they aren't being leeched to other sites, and wasting bandwidth.

Here is the article I found that shows that it can be done with lighttpd.conf, but I am not sure how to impliment it.....
Lighttpd prevent image hotlinking or leeching or direct linking | nixCraft

You can PM me for the IP Address of the webpage... no Domain name yet...

Here are the contents of the lighttpd files... I am not too familiar with MUCH of what is in these.....
lighttpd.sh

Code:

#!/bin/sh

if [ -x "${BINDIR}/lighttpd" ]; then
    echo "Starting lighttpd... "
    ${BINDIR}/lighttpd -f ${ETCDIR}/lighttpd.conf
else
    echo "ERROR: lighttpd not found or not executable"
fi

lighttpd.conf text to follow....

Ethereal_Dragon · 04-28-2007, 03:14 PM

lighttpd.conf - part 1

Code:

# lighttpd configuration file
#
# use it as a base for lighttpd 1.0.0 and above
#
# $Id: lighttpd.conf,v 1.7 2004/11/03 22:26:05 weigon Exp $

############ Options you really have to take care of ####################

## modules to load
# at least mod_access and mod_accesslog should be loaded
# all other module should only be loaded if really neccesary
# - saves some time
# - saves memory
server.modules              = (
#                               "mod_rewrite",
#                               "mod_redirect",
#                               "mod_alias",
                                "mod_access",
#                               "mod_cml",
#                               "mod_trigger_b4_dl",
#                               "mod_auth",
#                               "mod_status",
#                               "mod_setenv",
#                               "mod_fastcgi",
#                               "mod_proxy",
#                               "mod_simple_vhost",
#                               "mod_evhost",
#                               "mod_userdir",
#                               "mod_cgi",
#                               "mod_compress",
#                               "mod_ssi",
#                               "mod_usertrack",
#                               "mod_expire",
#                               "mod_secdownload",
#                               "mod_rrdtool",
                                "mod_accesslog" )

## a static document-root, for virtual-hosting take look at the
## server.virtual-* options
server.document-root        = "/mnt/HD_a2/www/pages/"

## where to send error-messages to
server.errorlog             = "/mnt/HD_a2/www/logs/error.log"

# files to check for if .../ is requested
index-file.names            = ( "index.php", "index.html",
                                "index.htm", "default.htm" )

## set the event-handler (read the performance section in the manual)
# server.event-handler = "freebsd-kqueue" # needed on OS X

# mimetype mapping
mimetype.assign             = (
  ".pdf"          =>      "application/pdf",
  ".sig"          =>      "application/pgp-signature",
  ".spl"          =>      "application/futuresplash",
  ".class"        =>      "application/octet-stream",
  ".ps"           =>      "application/postscript",
  ".torrent"      =>      "application/x-bittorrent",
  ".dvi"          =>      "application/x-dvi",
  ".gz"           =>      "application/x-gzip",
  ".pac"          =>      "application/x-ns-proxy-autoconfig",
  ".swf"          =>      "application/x-shockwave-flash",
  ".tar.gz"       =>      "application/x-tgz",
  ".tgz"          =>      "application/x-tgz",
  ".tar"          =>      "application/x-tar",
  ".zip"          =>      "application/zip",
  ".mp3"          =>      "audio/mpeg",
  ".m3u"          =>      "audio/x-mpegurl",
  ".wma"          =>      "audio/x-ms-wma",
  ".wax"          =>      "audio/x-ms-wax",
  ".ogg"          =>      "application/ogg",
  ".wav"          =>      "audio/x-wav",
  ".gif"          =>      "image/gif",
  ".jpg"          =>      "image/jpeg",
  ".jpeg"         =>      "image/jpeg",
  ".png"          =>      "image/png",
  ".xbm"          =>      "image/x-xbitmap",
  ".xpm"          =>      "image/x-xpixmap",
  ".xwd"          =>      "image/x-xwindowdump",
  ".css"          =>      "text/css",
  ".html"         =>      "text/html",
  ".htm"          =>      "text/html",
  ".js"           =>      "text/javascript",
  ".asc"          =>      "text/plain",
  ".c"            =>      "text/plain",
  ".cpp"          =>      "text/plain",
  ".log"          =>      "text/plain",
  ".conf"         =>      "text/plain",
  ".text"         =>      "text/plain",
  ".txt"          =>      "text/plain",
  ".dtd"          =>      "text/xml",
  ".xml"          =>      "text/xml",
  ".mpeg"         =>      "video/mpeg",
  ".mpg"          =>      "video/mpeg",
  ".mov"          =>      "video/quicktime",
  ".qt"           =>      "video/quicktime",
  ".avi"          =>      "video/x-msvideo",
  ".asf"          =>      "video/x-ms-asf",
  ".asx"          =>      "video/x-ms-asf",
  ".wmv"          =>      "video/x-ms-wmv",
  ".bz2"          =>      "application/x-bzip",
  ".tbz"          =>      "application/x-bzip-compressed-tar",
  ".tar.bz2"      =>      "application/x-bzip-compressed-tar"
 )

# Use the "Content-Type" extended attribute to obtain mime type if possible
#mimetype.use-xattr        = "enable"


## send a different Server: header
## be nice and keep it at lighttpd
# server.tag                 = "lighttpd"

#### accesslog module
accesslog.filename          = "/mnt/HD_a2/www/logs/access.log"

## deny access the file-extensions
#
# ~    is for backupfiles from vi, emacs, joe, ...
# .inc is often used for code includes which should in general not be part
#      of the document-root
#url.access-deny             = ( "~", ".inc" )

#$HTTP["url"] =~ "\.pdf$" {
#  server.range-requests = "disable"
#}

##
# which extensions should not be handle via static-file transfer
#
# .php, .pl, .fcgi are most often handled by mod_fastcgi or mod_cgi
static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" )

######### Options that are good to be but not neccesary to be changed #######

## bind to port (default: 80)
server.port                = 8080

## bind to localhost (default: all interfaces)
#server.bind                = "grisu.home.kneschke.de"

## error-handler for status 404
#server.error-handler-404   = "/error-handler.html"
#server.error-handler-404   = "/error-handler.php"

## to help the rc.scripts
#server.pid-file            = "/var/run/lighttpd.pid"

Ethereal_Dragon · 04-28-2007, 03:14 PM

lighttpd.conf - part 2

Code:

###### virtual hosts
##
##  If you want name-based virtual hosting add the next three settings and load
##  mod_simple_vhost
##
## document-root =
##   virtual-server-root + virtual-server-default-host + virtual-server-docroot
## or
##   virtual-server-root + http-host + virtual-server-docroot
##
#simple-vhost.server-root   = "/home/weigon/wwwroot/servers/"
#simple-vhost.default-host  = "grisu.home.kneschke.de"
#simple-vhost.document-root = "/pages/"


##
## Format: <errorfile-prefix><status-code>.html
## -> ..../status-404.html for 'File not found'
#server.errorfile-prefix    = "/home/weigon/projects/lighttpd/doc/status-"

## virtual directory listings
dir-listing.activate        = "enable"

## enable debugging
#debug.log-request-header   = "enable"
#debug.log-response-header  = "enable"
#debug.log-request-handling = "enable"
#debug.log-file-not-found   = "enable"

### only root can use these options
#
# chroot() to directory (default: no chroot() )
#server.chroot              = "/"

## change uid to <uid> (default: don't care)
#server.username            = "wwwrun"

## change uid to <uid> (default: don't care)
#server.groupname           = "wwwrun"

#### compress module
#compress.cache-dir         = "/tmp/lighttpd/cache/compress/"
#compress.filetype          = ("text/plain", "text/html")

#### proxy module
## read proxy.txt for more info
#proxy.server               = ( ".php" =>
#                               ( "localhost" =>
#                                 (
#                                   "host" => "192.168.0.101",
#                                   "port" => 80
#                                 )
#                               )
#                             )

#### fastcgi module
## read fastcgi.txt for more info
## for PHP don't forget to set cgi.fix_pathinfo = 1 in the php.ini
#fastcgi.server             = ( ".php" =>
#                               ( "localhost" =>
#                                 (
#                                   "socket" => "/tmp/php-fastcgi.socket",
#                                   "bin-path" => "/usr/local/bin/php"
#                                 )
#                               )
#                            )

#### CGI module
#cgi.assign                 = ( ".pl"  => "/usr/bin/perl",
#                               ".cgi" => "/usr/bin/perl" )
#

#### SSL engine
#ssl.engine                 = "enable"
#ssl.pemfile                = "server.pem"

#### status module
#status.status-url          = "/server-status"
#status.config-url          = "/server-config"

#### auth module
## read authentication.txt for more info
#auth.backend               = "plain"
#auth.backend.plain.userfile = "lighttpd.user"
#auth.backend.plain.groupfile = "lighttpd.group"

#auth.backend.ldap.hostname = "localhost"
#auth.backend.ldap.base-dn  = "dc=my-domain,dc=com"
#auth.backend.ldap.filter   = "(uid=$)"

#auth.require               = ( "/server-status" =>
#                               (
#                                 "method"  => "digest",
#                                 "realm"   => "download archiv",
#                                 "require" => "user=jan"
#                               ),
#                               "/server-config" =>
#                               (
#                                 "method"  => "digest",
#                                 "realm"   => "download archiv",
#                                 "require" => "valid-user"
#                               )
#                             )

#### url handling modules (rewrite, redirect, access)
#url.rewrite                = ( "^/$"             => "/server-status" )
#url.redirect               = ( "^/wishlist/(.+)" => "http://www.123.org/$1" )
#### both rewrite/redirect support back reference to regex conditional using %n
#$HTTP["host"] =~ "^www\.(.*)" {
#  url.redirect            = ( "^/(.*)" => "http://%1/$1" )
#}

#
# define a pattern for the host url finding
# %% => % sign
# %0 => domain name + tld
# %1 => tld
# %2 => domain name without tld
# %3 => subdomain 1 name
# %4 => subdomain 2 name
#
#evhost.path-pattern        = "/home/storage/dev/www/%3/htdocs/"

#### expire module
#expire.url                 = ( "/buggy/" => "access 2 hours", "/asdhas/" => "access plus 1 seconds 2 minutes")

#### ssi
#ssi.extension              = ( ".shtml" )

#### rrdtool
#rrdtool.binary             = "/usr/bin/rrdtool"
#rrdtool.db-name            = "/var/www/lighttpd.rrd"

#### setenv
#setenv.add-request-header  = ( "TRAV_ENV" => "mysql://user@host/db" )
#setenv.add-response-header = ( "X-Secret-Message" => "42" )

## for mod_trigger_b4_dl
# trigger-before-download.gdbm-filename = "/home/weigon/testbase/trigger.db"
# trigger-before-download.memcache-hosts = ( "127.0.0.1:11211" )
# trigger-before-download.trigger-url = "^/trigger/"
# trigger-before-download.download-url = "^/download/"
# trigger-before-download.deny-url = "http://127.0.0.1/index.html"
# trigger-before-download.trigger-timeout = 10

## for mod_cml
## don't forget to add index.cml to server.indexfiles
# cml.extension               = ".cml"
# cml.memcache-hosts          = ( "127.0.0.1:11211" )

#### variable usage:
## variable name without "." is auto prefixed by "var." and becomes "var.bar"
#bar = 1
#var.mystring = "foo"

## integer add
#bar += 1
## string concat, with integer cast as string, result: "www.foo1.com"
#server.name = "www." + mystring + var.bar + ".com"
## array merge
#index-file.names = (foo + ".php") + index-file.names
#index-file.names += (foo + ".php")

#### include
#include /etc/lighttpd/lighttpd-inc.conf
## same as above if you run: "lighttpd -f /etc/lighttpd/lighttpd.conf"
#include "lighttpd-inc.conf"

#### include_shell
#include_shell "echo var.a=1"
## the above is same as:
#var.a=1

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