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Ruby gem to provide server side connector to elFinder (open-source file manager for web)

README.md

el_finder

Gem Version

Description:

Ruby library to provide server side functionality for elFinder. elFinder is an open-source file manager for web, written in JavaScript using jQuery UI.

Note regarding 2.x API:

8 months ago I said: FYI, I'm working on a pure 2.x API implementation. Nothing to release yet, and the holidays are in the way, but wanted to "get the word out."

Today: No update :/

Requirements:

The gem, by default, relies upon the 'image_size' ruby gem and ImageMagick's 'mogrify' and 'convert' commands. These requirements can be changed by implementing custom methods for determining image size and resizing of an image.

NOTE: There is another ruby gem 'imagesize' that also defines the class ImageSize and requires 'image_size' If you have that one installed, elfinder will fail. Make sure you only have 'image_size' installed if you use the defaults.

Install:

Rails 3

  • Add gem 'el_finder' to Gemfile
  • % bundle install
  • Switch to using jQuery instead of Prototype
  • Add the following action to a controller of your choosing.
  skip_before_filter :verify_authenticity_token, :only => ['elfinder']

  def elfinder
    h, r = ElFinder::Connector.new(
      :root => File.join(Rails.public_path, 'system', 'elfinder'),
      :url => '/system/elfinder',
       :perms => {
         /^(Welcome|README)$/ => {:read => true, :write => false, :rm => false},
         '.' => {:read => true, :write => false, :rm => false}, # '.' is the proper way to specify the home/root directory.
         /^test$/ => {:read => true, :write => true, :rm => false},
         'logo.png' => {:read => true},
         /\.png$/ => {:read => false} # This will cause 'logo.png' to be unreadable.  
                                      # Permissions err on the safe side. Once false, always false.
       },
       :extractors => { 
         'application/zip' => ['unzip', '-qq', '-o'], # Each argument will be shellescaped (also true for archivers)
         'application/x-gzip' => ['tar', '-xzf'],
       },
       :archivers => { 
         'application/zip' => ['.zip', 'zip', '-qr9'], # Note first argument is archive extension
         'application/x-gzip' => ['.tgz', 'tar', '-czf'],
         },

    ).run(params)

    headers.merge!(h)

    render (r.empty? ? {:nothing => true} : {:text => r.to_json}), :layout => false
  end
  • Or, use ElFinder::Action and el_finder, which handles most of the boilerplate for an ElFinder action:
  require 'el_finder/action'

  class MyController < ApplicationController
    include ElFinder::Action

    el_finder(:action_name) do
      {
        :root => File.join(Rails.public_path, 'system', 'elfinder'),
        :url => '/system/elfinder',
         :perms => {
           /^(Welcome|README)$/ => {:read => true, :write => false, :rm => false},
           '.' => {:read => true, :write => false, :rm => false}, # '.' is the proper way to specify the home/root directory.
           /^test$/ => {:read => true, :write => true, :rm => false},
           'logo.png' => {:read => true},
           /\.png$/ => {:read => false} # This will cause 'logo.png' to be unreadable.  
                                        # Permissions err on the safe side. Once false, always false.
        },
        :extractors => { 
          'application/zip' => ['unzip', '-qq', '-o'], # Each argument will be shellescaped (also true for archivers)
          'application/x-gzip' => ['tar', '-xzf'],
        },
        :archivers => { 
          'application/zip' => ['.zip', 'zip', '-qr9'], # Note first argument is archive extension
          'application/x-gzip' => ['.tgz', 'tar', '-czf'],
        },
      }
    end
  end
  • Add the appropriate route to config/routes.rb such as:
  match 'elfinder' => 'home#elfinder'
  • Add the following to your layout. The paths may be different depending on where you installed the various js/css files.
  <%= stylesheet_link_tag 'jquery-ui/base/jquery.ui.all', 'elfinder' %>
  <%= javascript_include_tag :defaults, 'elfinder/elfinder.min' %>
  • Add the following to the view that will display elFinder:
  <%= javascript_tag do %>
    $().ready(function() { 
      $('#elfinder').elfinder({ 
        url: '/elfinder',
        lang: 'en'
      })
    })
  <% end %>
  <div id='elfinder'></div>

Using with very large file systems

@gudata added a configuration option to not load child directories. This breaks V1, but if you are using V2 it should work and speed up the responsiveness quite a bit. To enable it set :tree_sub_folders to false.

License:

(The MIT License)

Copyright (c) 2010 Philip Hallstrom

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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