Added rake task to count package visits from Nginx log files

Example call:
rake debshots:accesslog2visits['cache-access-example.log']
This commit is contained in:
Christoph Haas 2016-08-10 18:59:59 +02:00
parent 5227c8d1fa
commit 04baeb73e7

View file

@ -0,0 +1,66 @@
namespace :debshots do
desc "Parse web server access logs and count visits of packages"
task :accesslog2visits, [:logfile] => :environment do |t, args|
Rails.logger = Logger.new(STDOUT)
Rails.logger.level = Logger::INFO
# Rails.logger.level = Logger::DEBUG
REGEXP = /\[.+?\] Cache: (?<cache>\S+) (?<backend>\S+) (?<resptime>\S+) (?<code>\d+) (?<size>\d+) \d+\.\d+\.\d+\.\d+(, \d+\.\d+\.\d+\.\d+)* (?<url>\/\S*) \"(?<referer>.+?)\" \"(?<agent>).+\"/
REGEXPS_URL = [
%r{/thumbnail/(?<package>.+)},
%r{/thumbnail-404/(?<package>.+)},
%r{/thumbnail-with-version/(?<package>.+?)/},
%r{/screenshot/(?<package>.+)},
%r{/screenshot-404/(?<package>.+)},
%r{/screenshot-with-version/(?<package>.+?)/},
%r{/package/(?<package>.+)},
%r{/json/package/(?<package>.+)},
]
packages={}
logfile_name = args[:logfile]
Rails.logger.info "Parsing log file #{logfile_name}"
f = open(logfile_name, 'r')
file_size = f.size
f.each_line do |line|
pkgname = nil
if match = REGEXP.match(line)
#p match['code']
url = match['url'].squeeze('/')
REGEXPS_URL.each do |regexp|
if url_match = regexp.match(url)
pkgname = url_match['package']
break
end
end
if pkgname
packages[pkgname] = (packages[pkgname] ? packages[pkgname]+1 : 1)
end
Rails.logger.debug "#{pkgname} / url=#{url}"
else
Rails.logger.error "No match: #{line}"
end
# TODO: URLs auswerten (thumbnail, …with-version, package…) -> paket-views-zähler sammeln
# TODO: Cache-Hit-Ratio errechnen (nach größe der Response)
end
# Update packages with the count per package we summed up
Package.transaction do
packages.each do |pkg, count|
Rails.logger.info "Package: #{pkg} Count: #{count}"
db_pkg = Package.find_by_name pkg
if db_pkg
db_pkg.visits += count
db_pkg.save!
else
Rails.logger.error "Package #{pkg} not found in database."
end
end
end
end
end