HSC Dynamic Cache

HSC Dynamic Cache delivers ready-to-use Squid-3.5 "Store ID" helper. To improve the cache keys, there is an URL patterns file which can be customized by the user.

Here is the list of patterns included:

• IMDb trailers
• Sourceforge downloads
• R7 vídeos
• Metacafe
• MSN videos
• Terra TV
• Globo vídeos
• Facebook
• YouTube
• Google Maps

Requirements

• Perl
• Squid >= 3.5
• squidGuard or equivalent url_rewrite_program (optional)

Installation

# cp hsc-dynamic-cache /usr/local/bin/
# cp hsc-dynamic-cache-db.txt /usr/local/etc/
# chmod 755 /usr/local/bin/hsc-dynamic-cache
# chown root.squid /usr/local/bin/hsc-dynamic-cache
# chmod 644 /usr/local/etc/hsc-dynamic-cache-db.txt
# chown root.squid /usr/local/etc/hsc-dynamic-cache-db.txt
# cp extras/simplerewrite /usr/local/bin/
# chmod 755 /usr/local/bin/simplerewrite
# chown root.squid /usr/local/bin/simplerewrite

Dynamic caching

Squid Configuration

Dynamic caching is enabled by setting the following configuration parameters in the squid.conf file:

#url_rewrite_program /usr/bin/squidGuard
url_rewrite_program /usr/local/bin/simplerewrite

acl rewritedoms dstdomain .dailymotion.com .video-http.media-imdb.com .dl.sourceforge.net .prod.video.msn.com .fbcdn.net .akamaihd.net vl.mccont.com .mais.uol.com.br .streaming.r7.com
acl yt url_regex -i googlevideo.*videoplayback
acl gmaps url_regex -i ^https?:\/\/(khms|mt)[0-9]+\.google\.[a-z\.]+\/.*
acl ttv url_regex -i terratv
acl globo url_regex -i ^http:\/\/voddownload[0-9]+\.globo\.com.*
acl dm url_regex -i dailymotion\-flv2
acl getmethod method GET

range_offset_limit none
quick_abort_min -1 KB

store_id_program /usr/local/bin/hsc-dynamic-cache -file /usr/local/etc/hsc-dynamic-cache-db.txt
store_id_extras "%>a/%>A %un %>rm myip=%la myport=%lp referer=%{Referer}>h"
store_id_children 40 startup=10 idle=5 concurrency=0
store_id_access deny !getmethod
store_id_access allow rewritedoms
store_id_access allow yt
store_id_access allow gmaps
store_id_access allow ttv
store_id_access allow globo
store_id_access allow dm
store_id_access deny all

refresh_pattern -i squid\.internal	10080	80%	79900 override-lastmod override-expire ignore-reload ignore-no-store ignore-must-revalidate ignore-private ignore-auth

YouTube caching

There is no additional step required when using our simplerewrite custom helper.

squidGuard Configuration

YouTube caching can also be enabled by setting the following configuration parameters in the squidGuard.conf file:

logdir /var/log/squidGuard

rewrite yt {
	s@(https://.*youtube.com/watch\?v=.*)@\1\&html5=1@i
	s@(https://.*youtube.com/v/.*)@\1\&html5=1@i
}

acl {
	default {
		pass	all
		rewrite	yt
		log	verbose squidGuard.log
	}
}