Ruby file hosting help in finding a bug?

Question

Ruby on Rails

Good day, I’ll say right away that I’m trying to do everything as they described on Habré “Home file hosting based on Sinatra and DataMapper. Part 3 - Very Advanced features” I rewrote everything into a virtual machine. ubuntu server 14. When I run "thin start -C thin.yml" a log file appears with errors

>> Writing PID to /home/administrator/web/tmp/thin.pid
>> Exiting!
/home/administrator/web/config/config.ru:2:in `block in <main>': uninitialized constant Sinatra (NameError)
  from /usr/lib/ruby/vendor_ruby/rack/builder.rb:55:in `instance_eval'
  from /usr/lib/ruby/vendor_ruby/rack/builder.rb:55:in `initialize'
  from /home/administrator/web/config/config.ru:1:in `new'
  from /home/administrator/web/config/config.ru:1:in `<main>'
  from /usr/lib/ruby/vendor_ruby/rack/adapter/loader.rb:36:in `eval'
  from /usr/lib/ruby/vendor_ruby/rack/adapter/loader.rb:36:in `load'
  from /usr/lib/ruby/vendor_ruby/thin/controllers/controller.rb:181:in `load_rackup_config'
  from /usr/lib/ruby/vendor_ruby/thin/controllers/controller.rb:71:in `start'
  from /usr/lib/ruby/vendor_ruby/thin/runner.rb:185:in `run_command'
  from /usr/lib/ruby/vendor_ruby/thin/runner.rb:151:in `run!'
  from /usr/bin/thin:6:in `<main>'

Description of the config.ru file itself

require 'init'
Rack::Handler::Thin.run Sinatra::Application, :Port => 3000, :Host =>"192.168.0.14"

Itself only yesterday began to tell to study ubuntu and all connected.

Answer 1

The error says that it is not connected with the Sinatra gem.
What is in init.rb according to the article is somehow unclear.
You need to paste it somewhere
either in init.rb or in config.ru

Answer 2

Thanks, yes you are right. I put it in Config.ru and it seems to have started. The log showed:

>> Writing PID to /home/administrator/web/tmp/thin.pid
>> Thin web server (v1.3.1 codename Triple Espresso)
>> Maximum connections set to 1024
>> Listening on 192.168.0.14:4567, CTRL+C to stop

But when the client tries to connect, an error occurs:
I'm looking at it myself for now... but if anyone has any ideas... glad to hear it.
As a result, I found the list.haml file, I think I need to dig here?

- if @files.empty?
  %h1 Файлов нет.
- else
  .list
    %h1 Список файлов
    %table{ :cellspacing => 0}
      %tr
        %th Файл
        %th Загружен
        %th Скачан
        %th Удалить
      - @files.each do |file|
        %tr
          %td.filename
            %a{ :href => "/#{file.sha}/#{file.id}?nowait=true", :title => file.filename }= file.filename
            = "(#{file.filesize/1024} Kb)"
            %a{ :href => "/#{file.sha}/#{file.id}" } Для пересылки 
          %td.created_at= file.created_at.strftime("%d %b")
          %td.downloads= file.downloads
          %td.delete
            %a{ :href => "/#{file.sha}/#{file.id}/delete", :title => "Удалить", :onclick => "return ORLY();" } Удалить
.upload
  %h1 Добавить
  %form{ :name => "new_file", :enctype => "multipart/form-data", :method => "post", :action => "/" }
    %input{ :name => "file", :type => "file" }
    %br
    %input{ :type => "submit", :value => "Закачать" }

#init.rb
require 'rubygems'
require 'logger'
require 'ftools'
require 'dm-core'
require 'dm-validations'
require 'dm-timestamps'
require File.expand_path(File.dirname(__FILE__) + '/lib/stored_file')
require File.expand_path(File.dirname(__FILE__) + '/lib/sinatra/lib/sinatra')
require File.expand_path(File.dirname(__FILE__) + '/config/config')
require File.expand_path(File.dirname(__FILE__) + '/lib/authorization')

helpers do
  include Sinatra::Authorization
end

get '/' do
  require_administrative_privileges
  @files = StoredFile.all
  haml :list
end

post '/' do
  require_administrative_privileges
  tempfile = params['file'][:tempfile]
  filename = params['file'][:filename]
  digest = Digest::SHA1.hexdigest(filename)
  @file = StoredFile.create :filename => filename, :sha => digest, :filesize => File.size(tempfile.path)
  File.copy(tempfile.path, "./files/#{@file.id}.upload")
  redirect '/'
end

get '/style.css' do
  response['Content-Type'] = 'text/css; charset=utf-8'
  sass :style
end

get '/:sha/:id' do
  @file = StoredFile.first :sha => params[:sha], :id => params[:id]
  unless params[:nowait] == 'true'
    haml :download
  else
    @file.downloads += 1
    @file.save
    send_file "./files/#{@file.id}.upload", :filename => @file.filename, :type => 'Application/octet-stream'
  end
end

# delete file
get '/:sha/:id/delete' do
  require_administrative_privileges
  @file = StoredFile.first :sha => params[:sha], :id => params[:id]
  File.delete("./files/#{@file.id}.upload")
  @file.destroy
  redirect '/'
end

Answer 3

uninitialized constant Sinatra (NameError)
uninitialized constant Rack
to mean very strange labels. need experts.

Answer 4

Show init.rb Are you
using bundler?