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app.rb
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# frozen_string_literal: true
require 'sinatra'
require 'sinatra/reloader' if development?
require 'fluent/env'
require 'fluent/version'
require 'fluent/engine'
require 'fluent/plugin/parser_regexp'
module Fluentular
VERSION = ::Fluent::VERSION
HANDLE_ERRORS = [
Fluent::Plugin::Parser::ParserError,
Fluent::ConfigError,
RegexpError
].freeze
end
set :haml, format: :html5
get '/' do
haml :index
end
get '/parse' do
@regexp = params[:regexp].gsub(%r{^/(.+)/$}, '\1')
@input = params[:input]
@time_format = params[:time_format]
@error = nil
begin
parser = Fluent::Plugin::RegexpParser.new
conf = {
'expression' => @regexp,
'time_format' => @time_format
}
parser.configure(
Fluent::Config::Element.new('', '', conf, [])
)
parser.parse(@input) do |parsed_time, parsed|
@parsed_time = parsed_time
@parsed = parsed
end
rescue *Fluentular::HANDLE_ERRORS => e
status 400
@error = e
@parsed_time = nil
@parsed = nil
end
haml :index
end
__END__
@@ layout
!!!
%html
%head
%meta(charset='UTF-8')
%meta(name='viewport' content='width=device-width, initial-scale=1.0')
%title Fluentular: a Fluentd regular expression editor
%link(rel='stylesheet' href='//netdna.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css')
%link(rel='stylesheet' href='//cdnjs.cloudflare.com/ajax/libs/foundation/5.5.0/css/normalize.min.css')
%link(rel='stylesheet' href='//cdnjs.cloudflare.com/ajax/libs/foundation/5.5.0/css/foundation.min.css')
%script(src='//cdnjs.cloudflare.com/ajax/libs/modernizr/2.8.3/modernizr.min.js')
:javascript
var _gaq = _gaq || [];
_gaq.push(['_setAccount', "#{ENV['UA_CODE']}"]);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script');
ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
:css
@import url(//fonts.googleapis.com/css?family=Squada+One);
body {
border-top: 7px solid #2795b6;
padding-top: 10px;
}
h1 {
font-family: 'Squada One', cursive, sans-serif;
}
h3 {
margin: 40px 0px 20px;
border-bottom: 1px solid #eee;
}
pre#code-example {
padding: 0.125rem 0.3125rem 0.0625rem;
background-color: #f8f8f8;
border: 1px solid #dfdfdf;
white-space: pre-wrap;
}
code {
padding: 0px;
border: none;
}
i.fa-heart {
color: #ff79c6;
}
/* GitHub Courners from http://tholman.com/github-corners */
.octo-icon {
fill: #2795b6;
color: #fff;
position: absolute;
top: 0;
border: 0;
right: 0;
}
.github-corner:hover .octo-arm {
animation:octocat-wave 560ms ease-in-out;
}
@keyframes octocat-wave {
0%,100% { transform: rotate(0); }
20%,60% { transform: rotate(-25deg); }
40%,80% { transform: rotate(10deg); }
}
@media (max-width:500px) {
.github-corner:hover .octo-arm {
animation: none;
}
.github-corner .octo-arm {
animation: octocat-wave 560ms ease-in-out;
}
}
%body
%a.github-corner(href='https://github.com/tomohiro/fluentular')
%svg.octo-icon(width='80px' height='80px' viewBox='0 0 250 250')
%path(d='M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z')
%path.octo-arm(fill='currentColor' d='M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2' style='transform-origin: 130px 106px')
%path.octo-body(fill='currentColor' d='M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z')
%header.row.small-centered.columns
%section
%h1
%a(href='/') Fluentular
%img(src='https://img.shields.io/badge/fluentd-v#{Fluent::VERSION}-orange.svg?style=flat-square')
%h4 a Fluentd regular expression editor
%article
= yield
%footer.row.small-centered.columns
%section.small-12.columns
%p
© 2012 - 2022 Made with
%i.fa.fa-heart
by
%a(href='https://github.com/tomohiro') Tomohiro Taira
@@ index
%div.row
%section.small-12.medium-8.columns
%form(method='GET' action='/parse')
%label
%i.fa.fa-code
Regular Expression
%textarea(name='regexp' rows=5)&= @regexp
%label
%i.fa.fa-quote-left
Test String
%textarea(name='input' rows=5)&= @input
%label
%i.fa.fa-clock-o
Custom Time Format (See also ruby document;
%a(href='https://docs.ruby-lang.org/en/2.6.0/Time.html#method-i-strptime') strptime)
%textarea(name='time_format' rows=1)&= @time_format
- if @error
%span.alert-box.alert.radius
%i.fa.fa-exclamation-triangle
Error:
&= @error
%div.row
%div.large-2.large-centered.columns
%input.radius.button(type='submit' value='Parse')
%aside.small-12.medium-4.columns
%div.panel.callout.radius
%h4 Example (Apache)
%h6
Regular expression:
%pre#code-example
%code
& ^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^ ]*) +\S*)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$
%h6
Time Format:
%pre#code-example
%code
& %d/%b/%Y:%H:%M:%S %z
%div.row
%section.small-12.small-centered.columns
%h3
%i.fa.fa-file-code-o
Configuration
%p Copy and paste to <code>fluent.conf</code> or <code>td-agent.conf</code>
%div.panel
& <source>
%br/
& type tail
%br/
& path /var/log/foo/bar.log
%br/
& pos_file /var/log/td-agent/foo-bar.log.pos
%br/
& tag foo.bar
%br/
& format /#{@regexp}/
%br/
- if @time_format and !@time_format.empty?
& time_format #{@time_format}
%br/
& </source>
%div.row
%section.small-12.small-centered.columns
%h3
%i.fa.fa-crosshairs
Data Inspector
%h4 Attributes
%table.small-12
%thead
%tr
%th.small-4 Key
%th.small-8 Value
%tbody
- if @parsed
%tr
%th.small-4 time
%td.small-8 #{Time.at(@parsed_time).strftime("%Y/%m/%d %H:%M:%S %z")}
- else
%tr
%th.small-4
%td.small-12
%h4 Records
%table.small-12
%thead
%tr
%th.small-4 Key
%th.small-8 Value
%tbody
- if @parsed
- @parsed.each do |key, value|
%tr
%th&= key
%td&= value
- else
%tr
%th
%td