Squid helper handling squidguard blacklists written in python
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py-squid-blacklists

Squid helper handling squidguard blacklists written in python

  • Only supports domains blacklists actually (ie : google.com, www.google.com, mail.google.com, etc.)
  • In config specified blacklists are loaded in RAM or CDB backend using https://github.com/acg/python-cdb (testing flavour is available)
  • Usable as an external acl plugin of squid
  • Written because of poor developpement on squidguard and bad support of blacklists files using squid3
  • Tested on Debian 8 / python 2.7.9 / squid 3.4.8

## Usage

Add this configuration to squid.conf :

external_acl_type urlblacklist_lookup ttl=5 %URI /usr/bin/python /usr/local/blacklists/py-squid-blacklists.py
...
acl urlblacklist external urlblacklist_lookup
...
http_access deny urlblacklist

config.py file must be include following statements

url = "http://dsi.ut-capitole.fr/blacklists/download/blacklists.tar.gz"
base_dir = "/usr/local/py-squid-blacklists/blacklists/"
categories = ["adult","malware"]
db_backend = "ram"
  • url : squidguard-like blacklists files, this variable is not already usable
  • categories : blacklists to use for filtering
  • base_dir : path containing blacklists files
  • db_backend : database flavour (ram|cdb)

TODO

  • Auto-fetcher using url if blacklists are not already downloaded or stored on the squid machine
  • Compatibility with python3 only
  • Filters for regex urls
  • Reduce memory footprint (wip with CDB backend alternative)
  • Code optimisation (wip)
  • Object oriented programming (wip)
  • Tests (wip)
  • ...

DBs support ideas

  • High performance but heavy RAM usage when using dict()
  • Sqlite3 tested, light memory footprint, but very slow
  • CDB backend testing