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=======================
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Trigger before Download
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=======================
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-------------------------
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Module: mod_trigger_b4_dl
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-------------------------
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:Author: Jan Kneschke
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:Date: $Date: 2004/11/03 22:26:05 $
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:Revision: $Revision: 1.2 $
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:abstract:
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another anti-hot-linking module
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.. meta::
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:keywords: lighttpd, hot-linking, deep-linking
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.. contents:: Table of Contents
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Description
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===========
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Anti Hotlinking:
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* if user requests ''download-url'' directly, the request is denied and he is redirected to ''deny-url'
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* if user visits ''trigger-url'' before requesting ''download-url'', access is granted
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* if user visits ''download-url'' again after ''trigger-timeout'' has elapsed, the request is denied and he is redirected to ''deny-url''
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The trigger information is either stored locally in a gdbm file or remotely in memcached.
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Requirements
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------------
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* libpcre
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* libgdbm or libmemcached
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Options
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=======
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::
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trigger-before-download.gdbm-filename = "/home/weigon/testbase/trigger.db"
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trigger-before-download.memcache-hosts = ( "127.0.0.1:11211" )
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trigger-before-download.trigger-url = "^/trigger/"
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trigger-before-download.download-url = "^/download/"
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trigger-before-download.deny-url = "http://192.168.1.5:1025/index.html"
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trigger-before-download.trigger-timeout = 10
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If both trigger-before-download.gdbm-filename and
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trigger-before-download.memcache-hosts is set gdbm will take precedence.
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Installation
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============
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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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