| ======================= |
| 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 libmemcache |
| |
| 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. |
| |
