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 show
  14     @object = model_class.andand.find(params[:uuid])
  15     if @object.is_a? Link and
  16         @object.link_class == 'name' and
  17         ArvadosBase::resource_class_for_uuid(@object.head_uuid) == Collection
  18       redirect_to collection_path(id: @object.uuid)
  19     elsif @object
  20       redirect_to @object
  21     else
  22       raise ActiveRecord::RecordNotFound
  23     end
  24   end
  25
  26   def post
  27     params.keys.collect(&:to_sym).each do |param|
  28       if @@exposed_actions[param]
  29         return self.send(param)
  30       end
  31     end
  32     redirect_to :back
  33   end
  34
  35   expose_action :copy_selections_into_project do
  36     move_or_copy :copy
  37   end
  38
  39   expose_action :move_selections_into_project do
  40     move_or_copy :move
  41   end
  42
  43   def move_or_copy action
  44     uuids_to_add = params["selection"]
  45     uuids_to_add.
  46       collect { |x| ArvadosBase::resource_class_for_uuid(x) }.
  47       uniq.
  48       each do |resource_class|
  49       resource_class.filter([['uuid','in',uuids_to_add]]).each do |src|
  50         if resource_class == Collection
  51           dst = Link.new(owner_uuid: @object.uuid,
  52                          tail_uuid: @object.uuid,
  53                          head_uuid: src.uuid,
  54                          link_class: 'name',
  55                          name: src.uuid)
  56         else
  57           case action
  58           when :copy
  59             dst = src.dup
  60             if dst.respond_to? :'name='
  61               if dst.name
  62                 dst.name = "Copy of #{dst.name}"
  63               else
  64                 dst.name = "Copy of unnamed #{dst.class_for_display.downcase}"
  65               end
  66             end
  67           when :move
  68             dst = src
  69           else
  70             raise ArgumentError.new "Unsupported action #{action}"
  71           end
  72           dst.owner_uuid = @object.uuid
  73           dst.tail_uuid = @object.uuid if dst.class == Link
  74         end
  75         begin
  76           dst.save!
  77         rescue
  78           dst.name += " (#{Time.now.localtime})" if dst.respond_to? :name=
  79           dst.save!
  80         end
  81       end
  82     end
  83     redirect_to @object
  84   end
  85
  86   def arv_normalize mt, *opts
  87     r = ""
  88     IO.popen(['arv-normalize'] + opts, 'w+b') do |io|
  89       io.write mt
  90       io.close_write
  91       while buf = io.read(2**16)
  92         r += buf
  93       end
  94     end
  95     r
  96   end
  97
  98   expose_action :combine_selected_files_into_collection do
  99     lst = []
 100     files = []
 101     params["selection"].each do |s|
 102       a = ArvadosBase::resource_class_for_uuid s
 103       m = nil
 104       if a == Link
 105         begin
 106           m = CollectionsHelper.match(Link.find(s).head_uuid)
 107         rescue
 108         end
 109       else
 110         m = CollectionsHelper.match(s)
 111       end
 112
 113       if m and m[1] and m[2]
 114         lst.append(m[1] + m[2])
 115         files.append(m)
 116       end
 117     end
 118
 119     collections = Collection.where(uuid: lst)
 120
 121     chash = {}
 122     collections.each do |c|
 123       c.reload()
 124       chash[c.uuid] = c
 125     end
 126
 127     combined = ""
 128     files.each do |m|
 129       mt = chash[m[1]+m[2]].manifest_text
 130       if m[4]
 131         combined += arv_normalize mt, '--extract', m[4][1..-1]
 132       else
 133         combined += chash[m[1]+m[2]].manifest_text
 134       end
 135     end
 136
 137     normalized = arv_normalize combined
 138     normalized_stripped = arv_normalize combined, '--strip'
 139
 140     require 'digest/md5'
 141
 142     d = Digest::MD5.new()
 143     d << normalized_stripped
 144     newuuid = "#{d.hexdigest}+#{normalized_stripped.length}"
 145
 146     env = Hash[ENV].
 147       merge({
 148               'ARVADOS_API_HOST' =>
 149               arvados_api_client.arvados_v1_base.
 150               sub(/\/arvados\/v1/, '').
 151               sub(/^https?:\/\//, ''),
 152               'ARVADOS_API_TOKEN' => Thread.current[:arvados_api_token],
 153               'ARVADOS_API_HOST_INSECURE' =>
 154               Rails.configuration.arvados_insecure_https ? 'true' : 'false'
 155             })
 156
 157     IO.popen([env, 'arv-put', '--raw'], 'w+b') do |io|
 158       io.write normalized_stripped
 159       io.close_write
 160       while buf = io.read(2**16)
 161       end
 162     end
 163
 164     newc = Collection.new({:uuid => newuuid, :manifest_text => normalized})
 165     newc.save!
 166
 167     chash.each do |k,v|
 168       l = Link.new({
 169                      tail_uuid: k,
 170                      head_uuid: newuuid,
 171                      link_class: "provenance",
 172                      name: "provided"
 173                    })
 174       l.save!
 175     end
 176
 177     redirect_to controller: 'collections', action: :show, id: newc.uuid
 178   end
 179
 180 end