clogger.git  about / heads / tags
configurable request logging for Rack
$ git log --pretty=format:'%h %s (%cs)%d'
0a6b4a2 workaround for time(2) being non-monotonic (2023-05-11)
	(HEAD -> master)
461c3d4 use _POSIX_C_SOURCE=200809L (2023-05-11)
91de1c8 fix $request_time{9,0} for 32-bit platforms (2022-12-25)
e0efbc3 clogger 2.4.0 (2022-06-16)
	(tag: v2.4.0)
a16af82 doc: drop git:// URLs, use shorter domain for IMAP links (2022-06-16)
226e3c0 pure: fix time.rb incompatibility in Ruby 3.1+ (2022-06-16)
10f13b8 escape env['REQUEST_METHOD'] for non-strict HTTP servers (2022-06-16)
4ee4e61 clogger 2.3.1 (2021-05-25)
	(tag: v2.3.1)
c7d2e5d pkg.mk: remove index.html and created.rid from homepage (2021-05-25)
b6bed32 doc: use Tor v3 .onion URLs (2021-05-25)
...

$ git cat-file blob HEAD:README
= clogger - configurable request logging for Rack

clogger is Rack middleware for logging HTTP requests.  The log format
is customizable so you can specify exactly which fields to log.

== FEATURES

* highly customizable with easy-to-read nginx-like log format variables.

* pre-defines Apache Common Log Format, Apache Combined Log Format and
  Rack::CommonLogger (as distributed by Rack 1.0 and 1.1) formats.
  See Clogger::Format for the predefined formats.

* Untrusted values are escaped (all HTTP headers, request URI components)
  to make life easier for HTTP log parsers. The following bytes are escaped:

    ' (single quote)
    " (double quote)
    all bytes in the range of \x00-\x1F

* multi-instance capable and (optionally) reentrant.  You can use
  clogger in a multi-threaded server, and even multiple cloggers logging
  to different locations and different formats in the same process.

* Pure Ruby version for non-MRI versions of Ruby (or via CLOGGER_PURE=1
  in the environment).  The optional C extension is loaded by default
  under C Ruby and under Rubinius, too.

== SYNOPSIS

clogger may be loaded as Rack middleware in your config.ru:

  # ENV['CLOGGER_PURE'] = '1' # uncomment to disable C extension
  require "clogger"
  use Clogger,
      :format => :Combined,
      :path => "/path/to/log",
      :reentrant => true
  run YourApplication.new

If you're using Rails 2.3.x or later, in your config/environment.rb
somewhere inside the "Rails::Initializer.run do |config|" block:

  config.middleware.use 'Clogger',
      :format => :Combined,
      :path => "/path/to/log",
      :reentrant => false

Instead of specifying a :path, you may also specify a :logger object
that receives a "<<" method:

  use Clogger, :logger=> $stdout, :reentrant => true
  run YourApplication.new

== VARIABLES

* $http_* - HTTP request headers (e.g. $http_user_agent)
* $sent_http_* - HTTP response headers (e.g. $sent_http_content_length)
* $content_length - HTTP request body size
  ($http_content_length is not allowed by Rack)
* $content_type - HTTP request content type
  ($http_content_type is not allowed by Rack)
* $cookie_* - HTTP request cookie (e.g. $cookie_session_id)
  Rack::Request#cookies must have been used by the underlying application
  to parse the cookies into a hash.
* $request_method - the HTTP request method (e.g. GET, POST, HEAD, ...)
* $path_info - path component requested (e.g. /index.html)
* $query_string - request query string (not including leading "?")
* $request_uri - the URI requested ($path_info?$query_string)
* $request - the first line of the HTTP request
  ($request_method $request_uri $http_version)
* $request_time, $request_time{PRECISION}, $request_time{POWER,PRECISION} -
  time taken for request (including response body iteration). PRECISION
  defaults to 3 (milliseconds) if not specified but may be specified
  anywhere from 0(seconds) to 6(microseconds). POWER will raise the time to
  the provided power of 10, useful for converting to micro- or nanoseconds.
  POWER defaults to 0 if not specified but may be specified any from 0 to 9
* $time_iso8601 - current local time in ISO 8601 format,
  e.g. "1970-01-01T00:00:00+00:00"
* $time_local - current local time in Apache log format,
  e.g. "01/Jan/1970:00:00:00 +0000"
* $usec - current time in seconds.microseconds since the Epoch
* $msec - current time in seconds.milliseconds since the Epoch
* $body_bytes_sent - bytes in the response body (Apache: %B)
* $response_length - body_bytes_sent, except "-" instead of "0" (Apache: %b)
* $remote_user - HTTP-authenticated user
* $remote_addr - IP of the requesting client socket
* $status - three-digit HTTP status code (e.g. 200, 404, 302)
* $ip - X-Forwarded-For request header if available, $remote_addr if not
* $pid - process ID of the current process
* $e{Thread.current} - Thread processing the request
* $e{Fiber.current} - Fiber processing the request
* $env{variable_name} - any Rack environment variable (e.g. rack.url_scheme)

== REQUIREMENTS

* {Ruby}[https://www.ruby-lang.org/], {Rack}[https://rack.github.io/]

== DEVELOPMENT

The latest development happens in git and is published to the following:

   git clone https://YHBT.net/clogger.git
   git clone https://repo.or.cz/clogger.git

You may also browse and download snapshot tarballs:

* https://YHBT.net/clogger.git
* https://repo.or.cz/w/clogger.git (gitweb)

We use email for coordination and development, see below:

== CONTACT

All feedback (bug reports, user/development discussion, patches, pull
requests) is done via publicly-archived email:

* https://YHBT.net/clogger-public/
* imaps://YHBT.net/inbox.comp.lang.ruby.clogger.0
* nntps://news.public-inbox.org/inbox.comp.lang.ruby.clogger

Tor users may also access HTTP, IMAP, and NNTP archives via .onion:

* http://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/clogger-public/
* imap://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.clogger.0
* nntp://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.clogger

AUTH=ANONYMOUS is supported for IMAP and IMAPS, and any
username + password will work.

No subscription or real names will ever be required to email us.
Do not send HTML email, do not top post.

* mailto:clogger-public@YHBT.net

Homepage: https://YHBT.net/clogger/

== INSTALL

For RubyGems users:

  gem install clogger

There is an optional C extension that should be compatible with
MatzRuby.  The extensions should automatically be disabled for users of
other Ruby implementations, but be sure to let us know if that's not the
case.

# heads (aka `branches'):
$ git for-each-ref --sort=-creatordate refs/heads \
	--format='%(HEAD) %(refname:short) %(subject) (%(creatordate:short))'
* master       workaround for time(2) being non-monotonic (2023-05-11)
  respond_to-priv SQUASH/WIP - use rb_funcallv to handle second respond_to arg (2017-05-21)

# tags:
$ git for-each-ref --sort=-creatordate refs/tags \
	--format='%(refname:short) %(subject) (%(creatordate:short))'
v2.4.0       clogger 2.4.0 (2022-06-16) tar.gz
v2.3.1       clogger 2.3.1 (2021-05-25) tar.gz
v2.3.0       clogger 2.3.0 - $request_time{POWER,PRECISION} support (2020-08-10) tar.gz
v2.2.1       clogger 2.2.1 - move away from .org TLD (2020-01-08) tar.gz
v2.2.0       clogger v2.2.0 - Rack 2.x compatibility fix (2017-05-23) tar.gz
v2.1.0       clogger 2.1.0 - rack 2.x compatibility and more! (2016-07-28) tar.gz
v2.0.2       clogger 2.0.2 - bugfixes for pure Ruby users (2015-02-27) tar.gz
v2.0.1       clogger 2.0.1 - doc updates and new mailing list (2015-01-13) tar.gz
v2.0.0       clogger 2.0.0 - updated website URL, cleanups (2014-05-12) tar.gz
v1.4.0       clogger 1.4.0 - updated website URL, cleanups (2014-05-12) tar.gz
...

# associated public inboxes:
# (number on the left is used for dev purposes)
            https://yhbt.net/clogger-public

git clone https://yhbt.net/clogger.git