apps/workbench/app/controllers/actions_controller.rb

   1 class ActionsController < ApplicationController
   2
   3   @@exposed_actions = {}
   4   def self.expose_action method, &block
   5     @@exposed_actions[method] = true
   6     define_method method, block
   7   end
   8
   9   def model_class
  10     ArvadosBase::resource_class_for_uuid(params[:uuid])
  11   end
  12
  13   def post
  14     params.keys.collect(&:to_sym).each do |param|
  15       if @@exposed_actions[param]
  16         return self.send(param)
  17       end
  18     end
  19     redirect_to :back
  20   end
  21
  22   expose_action :copy_selections_into_project do
  23     move_or_copy :copy
  24   end
  25
  26   expose_action :move_selections_into_project do
  27     move_or_copy :move
  28   end
  29
  30   def move_or_copy action
  31     uuids_to_add = params["selection"]
  32     uuids_to_add.
  33       collect { |x| ArvadosBase::resource_class_for_uuid(x) }.
  34       uniq.
  35       each do |resource_class|
  36       resource_class.filter([['uuid','in',uuids_to_add]]).each do |src|
  37         if resource_class == Collection
  38           dst = Link.new(owner_uuid: @object.uuid,
  39                          tail_uuid: @object.uuid,
  40                          head_uuid: src.uuid,
  41                          link_class: 'name',
  42                          name: src.uuid)
  43         else
  44           case action
  45           when :copy
  46             dst = src.dup
  47             if dst.respond_to? :'name='
  48               if dst.name
  49                 dst.name = "Copy of #{dst.name}"
  50               else
  51                 dst.name = "Copy of unnamed #{dst.class_for_display.downcase}"
  52               end
  53             end
  54           when :move
  55             dst = src
  56           else
  57             raise ArgumentError.new "Unsupported action #{action}"
  58           end
  59           dst.owner_uuid = @object.uuid
  60           dst.tail_uuid = @object.uuid if dst.class == Link
  61         end
  62         begin
  63           dst.save!
  64         rescue
  65           dst.name += " (#{Time.now.localtime})" if dst.respond_to? :name=
  66           dst.save!
  67         end
  68       end
  69     end
  70     redirect_to @object
  71   end
  72
  73   def arv_normalize mt, *opts
  74     r = ""
  75     IO.popen(['arv-normalize'] + opts, 'w+b') do |io|
  76       io.write mt
  77       io.close_write
  78       while buf = io.read(2**16)
  79         r += buf
  80       end
  81     end
  82     r
  83   end
  84
  85   expose_action :combine_selected_files_into_collection do
  86     lst = []
  87     files = []
  88     params["selection"].each do |s|
  89       a = ArvadosBase::resource_class_for_uuid s
  90       m = nil
  91       if a == Link
  92         begin
  93           m = CollectionsHelper.match(Link.find(s).head_uuid)
  94         rescue
  95         end
  96       else
  97         m = CollectionsHelper.match(s)
  98       end
  99
 100       if m and m[1] and m[2]
 101         lst.append(m[1] + m[2])
 102         files.append(m)
 103       end
 104     end
 105
 106     collections = Collection.where(uuid: lst)
 107
 108     chash = {}
 109     collections.each do |c|
 110       c.reload()
 111       chash[c.uuid] = c
 112     end
 113
 114     combined = ""
 115     files.each do |m|
 116       mt = chash[m[1]+m[2]].manifest_text
 117       if m[4]
 118         combined += arv_normalize mt, '--extract', m[4][1..-1]
 119       else
 120         combined += chash[m[1]+m[2]].manifest_text
 121       end
 122     end
 123
 124     normalized = arv_normalize combined
 125     normalized_stripped = arv_normalize combined, '--strip'
 126
 127     require 'digest/md5'
 128
 129     d = Digest::MD5.new()
 130     d << normalized_stripped
 131     newuuid = "#{d.hexdigest}+#{normalized_stripped.length}"
 132
 133     env = Hash[ENV].
 134       merge({
 135               'ARVADOS_API_HOST' =>
 136               arvados_api_client.arvados_v1_base.
 137               sub(/\/arvados\/v1/, '').
 138               sub(/^https?:\/\//, ''),
 139               'ARVADOS_API_TOKEN' => Thread.current[:arvados_api_token],
 140               'ARVADOS_API_HOST_INSECURE' =>
 141               Rails.configuration.arvados_insecure_https ? 'true' : 'false'
 142             })
 143
 144     IO.popen([env, 'arv-put', '--raw'], 'w+b') do |io|
 145       io.write normalized_stripped
 146       io.close_write
 147       while buf = io.read(2**16)
 148       end
 149     end
 150
 151     newc = Collection.new({:uuid => newuuid, :manifest_text => normalized})
 152     newc.save!
 153
 154     chash.each do |k,v|
 155       l = Link.new({
 156                      tail_uuid: k,
 157                      head_uuid: newuuid,
 158                      link_class: "provenance",
 159                      name: "provided"
 160                    })
 161       l.save!
 162     end
 163
 164     redirect_to controller: 'collections', action: :show, id: newc.uuid
 165   end
 166
 167 end