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Denis Knauf <denis dot knauf at gmail dot com>

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GNU AFFERO GENERAL PUBLIC LICENSE
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Dependencies
============
System
------
* ruby >= 1.9 (tested: 1.9.1, untested: 1.8 (maybe compatible))
* tokyocabinet
### Debian/Ubuntu:
# aptitude ruby1.9.1 ruby1.9.1-dev rubygems1.9.1 libtokyocabinet-dev libtokyotyrant-dev
If you've installed ruby1.8 (yet), you should run ruby1.9.1 instead ruby and
gem1.9.1 instead gem.
Change shebash in s2l.rb to
#!/usr/bin/ruby1.9.1
or
#!/usr/bin/env ruby1.9.1
Install
=======
# gem install syslog2logan
Usage
=====
First you should know, the database environments are in *this* directory,
where you call *s2l.rb*. You must use this directory for logan itself too!
Don't use this directory for anything else.
Start
-----
Simple on Ubuntu:
# /var/lib/gems/1.9*/gems/syslog2logan-*/bin/s2l.rb
Deamonized:
# sh -c 'nohup PATHTO/s2l.rb </dev/null >/dev/null 2>&1 &' &
Use it
------
Your Syslog-server should send everythin via tcp to port 1514.
UDP and TLS aren't possible yet.
If you want to use any of these, you can proxy it via a local syslog-ng.
### syslog-ng
You need these lines:
source s_server {
unix-stream( "/dev/log" max-connections(100));
# internal(); # Statistics about dests. It's unimportant for LogAn.
file( "/proc/kmsg");
};
destination d_server {
tcp( "SyslogServer.example.org" port (1514));
};
log {
source( s_server);
destination( d_server);
};
### rsyslog
I don't know. Please tell me, how to use.

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require 'rubygems'
require 'rake'
begin
require 'jeweler'
Jeweler::Tasks.new do |gem|
gem.name = "syslog2logan"
gem.summary = %Q{Syslog-Server}
gem.description = %Q{Syslog-Server which logs to Berkeley Databases (No SyslogDaemon)}
gem.email = "Denis.Knauf@gmail.com"
gem.homepage = "http://github.com/DenisKnauf/syslog2logan"
gem.authors = ["Denis Knauf"]
gem.files = %w[AUTHORS README.md VERSION bin/**/* lib/**/*.rb test/**/*.rb]
gem.require_paths = %w[bin]
gem.add_dependency 'sbdb'
gem.add_dependency 'robustserver'
gem.add_dependency 'select'
end
Jeweler::GemcutterTasks.new
rescue LoadError
puts "Jeweler (or a dependency) not available. Install it with: sudo gem install jeweler"
end
require 'rake/testtask'
Rake::TestTask.new(:test) do |test|
test.libs << 'lib' << 'test' << 'ext'
test.pattern = 'test/**/*_test.rb'
test.verbose = true
end
begin
require 'rcov/rcovtask'
Rcov::RcovTask.new do |test|
test.libs << 'test'
test.pattern = 'test/**/*_test.rb'
test.verbose = true
end
rescue LoadError
task :rcov do
abort "RCov is not available. In order to run rcov, you must: sudo gem install spicycode-rcov"
end
end
task :test => :check_dependencies
task :default => :test
require 'rake/rdoctask'
Rake::RDocTask.new do |rdoc|
if File.exist?('VERSION')
version = File.read('VERSION')
else
version = ""
end
rdoc.rdoc_dir = 'rdoc'
rdoc.title = "sbdb #{version}"
rdoc.rdoc_files.include('README*')
rdoc.rdoc_files.include('lib/**/*.rb')
end

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0.0.3.0

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bin/s2l.rb Executable file
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#!/usr/bin/ruby
$:.push File.join( File.dirname( $0), '..', 'lib')
require 'logger'
require 'json'
require 'rubygems'
require 'uuidtools'
require 'socket'
require 'select'
require 'robustserver'
require 'active_support'
require 'syslog2logan/rotate'
require 'syslog2logan/server'
$logger = Logger.new $stderr
$logger.formatter = proc { |severity, datetime, progname, msg| [severity, datetime, progname, msg.inspect].to_json+"\n" }
module Kernel
def logger() $logger end
end
class Main < RobustServer
def initialize conf
super
@logger = $logger
@conf = conf
logger.info :open => S2L
@serv = S2L.new :sock => TCPServer.new( *@conf[:server])
@sigs[:INT] = @sigs[:TERM] = method(:shutdown)
@sigs[:USR1] = method(:state)
end
def state s = nil
logger.debug :server => @serv.class
end
def shutdown s = nil
logger.info :shutdown => [s, Signal[s]]
@serv.close
exit 0
end
def run
logger.info :open => @conf[:backend]
@conf[:backend][0].new( @conf[:backend][1]) do |backend|
logger.info :open => Rotate
@serv.dbs = Rotate.new &backend.to_proc
logger.info :run => @serv.class
@serv.run
logger.info :close => @conf[:backend]
end
end
end
require 'syslog2logan/backend/tch'
Main.main :backend => [ Backend::TCH, {:dir => 'logs'}], :server => [ '', 1514], :retries => [1,1] # [10, 10]
logger.info :halted

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>DenisKnauf/syslog2logan @ GitHub</title>
<style type="text/css">
body {
margin-top: 1.0em;
background-color: #324f76;
font-family: "Helvetica,Arial,FreeSans";
color: #ffffff;
}
#container {
margin: 0 auto;
width: 700px;
}
h1 { font-size: 3.8em; color: #cdb089; margin-bottom: 3px; }
h1 .small { font-size: 0.4em; }
h1 a { text-decoration: none }
h2 { font-size: 1.5em; color: #cdb089; }
h3 { text-align: center; color: #cdb089; }
a { color: #cdb089; }
.description { font-size: 1.2em; margin-bottom: 30px; margin-top: 30px; font-style: italic;}
.download { float: right; }
pre { background: #000; color: #fff; padding: 15px;}
hr { border: 0; width: 80%; border-bottom: 1px solid #aaa}
.footer { text-align:center; padding-top:30px; font-style: italic; }
</style>
</head>
<body>
<a href="http://github.com/DenisKnauf/syslog2logan"><img style="position: absolute; top: 0; right: 0; border: 0;" src="http://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png" alt="Fork me on GitHub" /></a>
<div id="container">
<div class="download">
<a href="http://github.com/DenisKnauf/syslog2logan/zipball/master">
<img border="0" width="90" src="http://github.com/images/modules/download/zip.png"></a>
<a href="http://github.com/DenisKnauf/syslog2logan/tarball/master">
<img border="0" width="90" src="http://github.com/images/modules/download/tar.png"></a>
</div>
<h1><a href="http://github.com/DenisKnauf/syslog2logan">syslog2logan</a>
<span class="small">by <a href="http://github.com/DenisKnauf">DenisKnauf</a></span></h1>
<div class="description">
Syslog-Server: Stores syslog-lines in a BDB (No SyslogDaemon)
</div>
<h2>Dependencies</h2>
<p>ruby-1.9.1</p>
<h2>License</h2>
<p>AGPL3</p>
<h2>Authors</h2>
<p>Denis Knauf (Denis.Knauf@gmail.com) <br/> <br/> </p>
<h2>Contact</h2>
<p>Denis Knauf (Denis.Knauf@gmail.com) <br/> </p>
<h2>Download</h2>
<p>
You can download this project in either
<a href="http://github.com/DenisKnauf/syslog2logan/zipball/master">zip</a> or
<a href="http://github.com/DenisKnauf/syslog2logan/tarball/master">tar</a> formats.
</p>
<p>You can also clone the project with <a href="http://git-scm.com">Git</a>
by running:
<pre>$ git clone git://github.com/DenisKnauf/syslog2logan</pre>
</p>
<div class="footer">
get the source code on GitHub : <a href="http://github.com/DenisKnauf/syslog2logan">DenisKnauf/syslog2logan</a>
</div>
</div>
</body>
</html>

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class File
def exclusive_lock
flock File::LOCK_EX
end
def shared_lock
flock File::LOCK_SH
end
def unblock
flock File::LOCK_UN
end
end
class FileQueue
attr_reader :file, :size
alias to_io file
def initialize file, size = 16
@file = case file
when File then file
else File.open file, 'a+'
end
@size, @pack = size, "A#{size}"
end
def push *a
f = @file
f.seek 0, IO::SEEK_END
f.exclusive_lock
f.write a.pack( @pack*a.length)
f.unblock
end
def pop
f = @file
f.rewind
f.exclusive_lock
s = f.read( @size).unpack( 'L')[0]
f.rewind
f.write [s.succ].pack( 'L')
f.sync
f.shared_lock
f.pos = s
f.read( @size).unpack( 'L')[0]
f.unblock
end
end

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#!/usr/bin/ruby
require 'logger'
require 'rubygems'
require 'uuidtools'
require 'socket'
require 'select'
require 'robustserver'
require 'active_support'
require 'syslog2logan/rotate'
$logger = Logger.new $stderr
class S2L < Select::Server
attr_accessor :dbs
def init p
super p
@dbs = p[:dbs]
end
def event_new_client a
logger.debug :connection => {:new => a}
{ :clientclass => S2L::Socket, :dbs => @dbs }
end
end
module Kernel
def logger() $logger end
end
class S2L::Socket < Select::Socket
def init opts
@dbs = opts[ :dbs]
super opts
end
def event_line v
logger.debug :line => v
@dbs.emit v
end
alias emit event_line
end
class Main < RobustServer
def initialize conf
super
@logger = $logger
@conf = conf
logger.info :open => S2L
@serv = S2L.new :sock => TCPServer.new( *@conf[:server])
logger.info :create => {:home => @conf[:home]}
Dir.mkdir @conf[:home] rescue Errno::EEXIST
@sigs[:INT] = @sigs[:TERM] = method(:shutdown)
@sigs[:USR1] = method(:state)
end
def state s = nil
logger.debug :server => @serv
end
def shutdown s = nil
logger.info :shutdown => [s, Signal[s]]
@serv.close
exit 0
end
def run
logger.info :open => SBDB::Env
SBDB::Env.new( @conf[:home],
log_config: SBDB::Env::LOG_IN_MEMORY | SBDB::Env::LOG_AUTO_REMOVE,
flags: SBDB::CREATE | SBDB::Env::INIT_TXN | Bdb::DB_INIT_MPOOL) do |dbenv|
logger.info :open => Rotate
@serv.dbs = Rotate.new dbenv[ 'rotates.db', :type => SBDB::Btree, :flags => SBDB::CREATE | Bdb::DB_AUTO_COMMIT]
logger.info :run => @serv
@serv.run
end
end
end
Main.main :home => 'logs', :server => [ '', 1514], :retries => [1,1] # [10, 10]
logger.info :halted

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module Backend
end
class Backend::Base
def initialize opts = {}
if block_given?
yield self
else
self
end
end
def to_proc
method :open
end
end

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require 'rufus/tokyo'
require 'syslog2logan/backend/base'
class Backend::TCH < Backend::Base
attr_reader :dir
def initialize opts = {}, &e
@dir = opts[:dir]
Dir.mkdir @dir rescue Errno::EEXIST
@dbs = []
if block_given?
begin
super opts, &e
ensure
close
end
else
super opts
end
end
def close
@dbs.each &:close
end
def open name
logger.info :open => name, :backend => self.class
db = Rufus::Tokyo::Cabinet.new File.join( @dir, name)+".tch"
@dbs.push db
db
end
end

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require 'syslog2logan/rotate/base.rb'

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#!/usr/bin/ruby
require 'logger'
require 'uuidtools'
require 'active_support/core_ext'
class Rotate
# open_db_func: must returns a db-object with #[] and #[]=.
# #sync and #close are optional, for Rotate#sync, Rotate#close.
def initialize hash_func = nil, &open_db_func
@dbs = Hash.new {|h,k| h[k] = open_db_func.call(k) }
hash_func ||= lambda {|k| [k.timestamp.to_i/1.day].pack 'N' }
define_singleton_method :hashing, &hash_func
@rotate = @dbs['rotate']
@queue = @dbs['queue']
end
def db_name id
h = hashing id
n = @rotate[ h]
if n
n = UUIDTools::UUID.parse_raw n
else
n = UUIDTools::UUID.timestamp_create
@rotate[ h] = n.raw
logger.info :create => n.to_s
end
n
end
# Synchronize data to disc.
# Only avaible if db-backend provides #sync.
def sync
@dbs.each {|n, db| db.sync }
@rotate.sync
@queue.sync
end
# Close databases.
# Only avaible if db-backend provides #close.
def close
@dbs.each {|n, db| db.close }
@rotate.close
@queue.close
end
# Put new logline to databases.
# This will be written in a database with an UUID as name.
# If this db don't exist, it will be created via open_db_func (#initialize).
def put v
id = UUIDTools::UUID.timestamp_create
s = [0x10, v].pack 'Na*'
n = db_name id
@dbs[n][ id.raw] = s
@queue.push id.raw
end
alias emit put
end

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#!/usr/bin/ruby
require 'logger'
require 'rubygems'
require 'sbdb'
require 'uuidtools'
require 'socket'
require 'select'
require 'robustserver'
require 'active_support'
class Rotate::BDB
def initialize db, &e
@rdb, @env, @dbs = db, db.home, {}
self.hash = e || lambda {|k|
[k.timestamp.to_i/1.hour].pack 'N'
}
end
def hash= e
self.hash &e
end
def hash &e
@hash_func = e if e
@hash_func
end
def hashing k
@hash_func.call k
end
def db_name id
h = hashing id
n = @rdb[ h]
if n
n = UUIDTools::UUID.parse_raw n
else
n = UUIDTools::UUID.timestamp_create
@rdb[ h] = n.raw
logger.info :create => n.to_s
end
n
end
def db n
@env[ n.to_s, :type => SBDB::Btree, :flags => SBDB::CREATE | SBDB::AUTO_COMMIT]
end
def queue n
@env[ "newids.queue", :type => SBDB::Queue, :flags => SBDB::CREATE | SBDB::AUTO_COMMIT, :re_len => 16]
end
def sync
@dbs.each {|n, db| db.sync }
@rdb.sync
end
def close
@dbs.each {|n, db| db.close 0 }
@rdb.close 0
end
def put v
id = UUIDTools::UUID.timestamp_create
s = [0x10, v].pack 'Na*'
n = db_name id
db( n)[ id.raw] = s
queue( n).push id.raw
end
alias emit put
end
class Main < RobustServer
def initialize conf
super
@logger = $logger
@conf = conf
logger.info :open => S2L
@serv = S2L.new :sock => TCPServer.new( *@conf[:server])
logger.info :create => {:home => @conf[:home]}
Dir.mkdir @conf[:home] rescue Errno::EEXIST
@sigs[:INT] = @sigs[:TERM] = method(:shutdown)
@sigs[:USR1] = method(:state)
end
def state s = nil
logger.debug :server => @serv
end
def shutdown s = nil
logger.info :shutdown => [s, Signal[s]]
@serv.close
exit 0
end
def run
logger.info :open => SBDB::Env
SBDB::Env.new( @conf[:home],
log_config: SBDB::Env::LOG_IN_MEMORY | SBDB::Env::LOG_AUTO_REMOVE,
flags: SBDB::CREATE | SBDB::Env::INIT_TXN | Bdb::DB_INIT_MPOOL) do |dbenv|
logger.info :open => Rotate
@serv.dbs = Rotate.new dbenv[ 'rotates.db', :type => SBDB::Btree, :flags => SBDB::CREATE | Bdb::DB_AUTO_COMMIT]
logger.info :run => @serv
@serv.run
end
end
end

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require 'socket'
require 'select'
class S2L < Select::Server
attr_accessor :dbs
def init p
super p
@dbs = p[:dbs]
end
def event_new_client a
logger.debug :connection => {:new => a}
{ :clientclass => S2L::Socket, :dbs => @dbs }
end
end
class S2L::Socket < Select::Socket
def init opts
@dbs = opts[ :dbs]
super opts
end
def event_line v
logger.debug :line => v
@dbs.emit v
end
alias emit event_line
end