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=======================
Trigger before Download
=======================
-------------------------
Module: mod_trigger_b4_dl
-------------------------
:Author: Jan Kneschke
:Date: $Date: 2004/11/03 22:26:05 $
:Revision: $Revision: 1.2 $
:abstract:
another anti-hot-linking module
.. meta::
:keywords: lighttpd, hot-linking, deep-linking
.. contents:: Table of Contents
Description
===========
Anti Hotlinking:
* if user requests ''download-url'' directly, the request is denied and he is redirected to ''deny-url'
* if user visits ''trigger-url'' before requesting ''download-url'', access is granted
* if user visits ''download-url'' again after ''trigger-timeout'' has elapsed, the request is denied and he is redirected to ''deny-url''
The trigger information is either stored locally in a gdbm file or remotely in memcached.
Requirements
------------
* libpcre
* libgdbm or libmemcached
Options
=======
::
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://192.168.1.5:1025/index.html"
trigger-before-download.trigger-timeout = 10
If both trigger-before-download.gdbm-filename and
trigger-before-download.memcache-hosts is set gdbm will take precedence.
Installation
============
memcached should be started with the option -M as we don't want to remove entry if the memory is full.
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