X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/81c6881710e5d2e21f44682455f176dd965684cd..675794872a5d064cf0a8177d662555c04b0dae51:/apps/workbench/app/controllers/collections_controller.rb

diff --git a/apps/workbench/app/controllers/collections_controller.rb b/apps/workbench/app/controllers/collections_controller.rb
index 01abbb4ee0..3e981e10d8 100644
--- a/apps/workbench/app/controllers/collections_controller.rb
+++ b/apps/workbench/app/controllers/collections_controller.rb
@@ -1,10 +1,45 @@
 class CollectionsController < ApplicationController
-  skip_before_filter :find_object_by_uuid, :only => [:provenance]
-  skip_before_filter :check_user_agreements, :only => [:show_file]
+  skip_around_filter(:thread_with_mandatory_api_token,
+                     only: [:show_file, :show_file_links])
+  skip_before_filter(:find_object_by_uuid,
+                     only: [:provenance, :show_file, :show_file_links])
+
+  RELATION_LIMIT = 5
 
   def show_pane_list
     %w(Files Attributes Metadata Provenance_graph Used_by JSON API)
   end
+
+  def set_persistent
+    case params[:value]
+    when 'persistent', 'cache'
+      persist_links = Link.filter([['owner_uuid', '=', current_user.uuid],
+                                   ['link_class', '=', 'resources'],
+                                   ['name', '=', 'wants'],
+                                   ['tail_uuid', '=', current_user.uuid],
+                                   ['head_uuid', '=', @object.uuid]])
+      logger.debug persist_links.inspect
+    else
+      return unprocessable "Invalid value #{value.inspect}"
+    end
+    if params[:value] == 'persistent'
+      if not persist_links.any?
+        Link.create(link_class: 'resources',
+                    name: 'wants',
+                    tail_uuid: current_user.uuid,
+                    head_uuid: @object.uuid)
+      end
+    else
+      persist_links.each do |link|
+        link.destroy || raise
+      end
+    end
+
+    respond_to do |f|
+      f.json { render json: @object }
+    end
+  end
+
   def index
     if params[:search].andand.length.andand > 0
       tags = Link.where(any: ['contains', params[:search]])
@@ -55,99 +90,167 @@ class CollectionsController < ApplicationController
     @request_url = request.url
   end
 
+  def show_file_links
+    Thread.current[:reader_tokens] = [params[:reader_token]]
+    find_object_by_uuid
+    render layout: false
+  end
+
   def show_file
-    opts = params.merge(arvados_api_token: Thread.current[:arvados_api_token])
-    if r = params[:file].match(/(\.\w+)/)
-      ext = r[1]
+    # We pipe from arv-get to send the file to the user.  Before we start it,
+    # we ask the API server if the file actually exists.  This serves two
+    # purposes: it lets us return a useful status code for common errors, and
+    # helps us figure out which token to provide to arv-get.
+    coll = nil
+    tokens = [Thread.current[:arvados_api_token], params[:reader_token]].compact
+    usable_token = find_usable_token(tokens) do
+      coll = Collection.find(params[:uuid])
     end
+    if usable_token.nil?
+      return  # Response already rendered.
+    elsif params[:file].nil? or not file_in_collection?(coll, params[:file])
+      return render_not_found
+    end
+    opts = params.merge(arvados_api_token: usable_token)
+    ext = File.extname(params[:file])
     self.response.headers['Content-Type'] =
       Rack::Mime::MIME_TYPES[ext] || 'application/octet-stream'
     self.response.headers['Content-Length'] = params[:size] if params[:size]
     self.response.headers['Content-Disposition'] = params[:disposition] if params[:disposition]
-    self.response_body = FileStreamer.new opts
+    self.response_body = file_enumerator opts
+  end
+
+  def sharing_scopes
+    ["GET /arvados/v1/collections/#{@object.uuid}", "GET /arvados/v1/keep_services"]
   end
 
+  def search_scopes
+    ApiClientAuthorization.where(filters: [['scopes', '=', sharing_scopes]])
+  end
 
   def show
     return super if !@object
-    @provenance = []
-    @output2job = {}
-    @output2colorindex = {}
-    @sourcedata = {params[:uuid] => {uuid: params[:uuid]}}
-    @protected = {}
-
-    colorindex = -1
-    any_hope_left = true
-    while any_hope_left
-      any_hope_left = false
-      Job.where(output: @sourcedata.keys).sort_by { |a| a.finished_at || a.created_at }.reverse.each do |job|
-        if !@output2colorindex[job.output]
-          any_hope_left = true
-          @output2colorindex[job.output] = (colorindex += 1) % 10
-          @provenance << {job: job, output: job.output}
-          @sourcedata.delete job.output
-          @output2job[job.output] = job
-          job.dependencies.each do |new_source_data|
-            unless @output2colorindex[new_source_data]
-              @sourcedata[new_source_data] = {uuid: new_source_data}
-            end
-          end
-        end
+    if current_user
+      jobs_with = lambda do |conds|
+        Job.limit(RELATION_LIMIT).where(conds)
+          .results.sort_by { |j| j.finished_at || j.created_at }
       end
+      @output_of = jobs_with.call(output: @object.uuid)
+      @log_of = jobs_with.call(log: @object.uuid)
+      folder_links = Link.limit(RELATION_LIMIT).order("modified_at DESC")
+        .where(head_uuid: @object.uuid, link_class: 'name').results
+      folder_hash = Group.where(uuid: folder_links.map(&:tail_uuid)).to_hash
+      @folders = folder_links.map { |link| folder_hash[link.tail_uuid] }
+      @permissions = Link.limit(RELATION_LIMIT).order("modified_at DESC")
+        .where(head_uuid: @object.uuid, link_class: 'permission',
+               name: 'can_read').results
+      @logs = Log.limit(RELATION_LIMIT).order("created_at DESC")
+        .where(object_uuid: @object.uuid).results
+      @is_persistent = Link.limit(1)
+        .where(head_uuid: @object.uuid, tail_uuid: current_user.uuid,
+               link_class: 'resources', name: 'wants')
+        .results.any?
+      @search_sharing = search_scopes.select { |s| s.scopes != ['all'] }
     end
+    @prov_svg = ProvenanceHelper::create_provenance_graph(@object.provenance, "provenance_svg",
+                                                          {:request => request,
+                                                            :direction => :bottom_up,
+                                                            :combine_jobs => :script_only}) rescue nil
+    @used_by_svg = ProvenanceHelper::create_provenance_graph(@object.used_by, "used_by_svg",
+                                                             {:request => request,
+                                                               :direction => :top_down,
+                                                               :combine_jobs => :script_only,
+                                                               :pdata_only => true}) rescue nil
+  end
 
-    Link.where(head_uuid: @sourcedata.keys | @output2job.keys).each do |link|
-      if link.link_class == 'resources' and link.name == 'wants'
-        @protected[link.head_uuid] = true
-      end
+  def sharing_popup
+    @search_sharing = search_scopes.select { |s| s.scopes != ['all'] }
+    respond_to do |format|
+      format.html
+      format.js
     end
-    Link.where(tail_uuid: @sourcedata.keys).each do |link|
-      if link.link_class == 'data_origin'
-        @sourcedata[link.tail_uuid][:data_origins] ||= []
-        @sourcedata[link.tail_uuid][:data_origins] << [link.name, link.head_kind, link.head_uuid]
-      end
+  end
+
+  def share
+    a = ApiClientAuthorization.create(scopes: sharing_scopes)
+    @search_sharing = search_scopes.select { |s| s.scopes != ['all'] }
+    render 'sharing_popup'
+  end
+
+  def unshare
+    @search_sharing = search_scopes.select { |s| s.scopes != ['all'] }
+    @search_sharing.each do |s|
+      s.destroy
     end
-    Collection.where(uuid: @sourcedata.keys).each do |collection|
-      if @sourcedata[collection.uuid]
-        @sourcedata[collection.uuid][:collection] = collection
+    @search_sharing = search_scopes.select { |s| s.scopes != ['all'] }
+    render 'sharing_popup'
+  end
+
+  protected
+
+  def find_usable_token(token_list)
+    # Iterate over every given token to make it the current token and
+    # yield the given block.
+    # If the block succeeds, return the token it used.
+    # Otherwise, render an error response based on the most specific
+    # error we encounter, and return nil.
+    most_specific_error = [401]
+    token_list.each do |api_token|
+      using_specific_api_token(api_token) do
+        begin
+          yield
+          return api_token
+        rescue ArvadosApiClient::NotLoggedInException => error
+          status = 401
+        rescue => error
+          status = (error.message =~ /\[API: (\d+)\]$/) ? $1.to_i : nil
+          raise unless [401, 403, 404].include?(status)
+        end
+        if status >= most_specific_error.first
+          most_specific_error = [status, error]
+        end
       end
     end
-    
-    Collection.where(uuid: @object.uuid).each do |u|
-      puts request
-      @prov_svg = ProvenanceHelper::create_provenance_graph(u.provenance, "provenance_svg", 
-                                                            {:request => request,
-                                                              :direction => :bottom_up, 
-                                                              :combine_jobs => :script_only}) rescue nil
-      @used_by_svg = ProvenanceHelper::create_provenance_graph(u.used_by, "used_by_svg", 
-                                                               {:request => request,
-                                                                 :direction => :top_down, 
-                                                                 :combine_jobs => :script_only, 
-                                                                 :pdata_only => true}) rescue nil
+    case most_specific_error.shift
+    when 401, 403
+      redirect_to_login
+    when 404
+      render_not_found(*most_specific_error)
     end
+    return nil
+  end
+
+  def file_in_collection?(collection, filename)
+    target = CollectionsHelper.file_path(File.split(filename))
+    collection.files.each do |file_spec|
+      return true if (CollectionsHelper.file_path(file_spec) == target)
+    end
+    false
+  end
+
+  def file_enumerator(opts)
+    FileStreamer.new opts
   end
 
-  protected
   class FileStreamer
+    include ArvadosApiClientHelper
     def initialize(opts={})
       @opts = opts
     end
     def each
       return unless @opts[:uuid] && @opts[:file]
-      env = Hash[ENV].
-        merge({
-                'ARVADOS_API_HOST' =>
-                $arvados_api_client.arvados_v1_base.
-                sub(/\/arvados\/v1/, '').
-                sub(/^https?:\/\//, ''),
-                'ARVADOS_API_TOKEN' =>
-                @opts[:arvados_api_token],
-                'ARVADOS_API_HOST_INSECURE' =>
-                Rails.configuration.arvados_insecure_https ? 'true' : 'false'
-              })
+
+      env = Hash[ENV].dup
+
+      require 'uri'
+      u = URI.parse(arvados_api_client.arvados_v1_base)
+      env['ARVADOS_API_HOST'] = "#{u.host}:#{u.port}"
+      env['ARVADOS_API_TOKEN'] = @opts[:arvados_api_token]
+      env['ARVADOS_API_HOST_INSECURE'] = "true" if Rails.configuration.arvados_insecure_https
+
       IO.popen([env, 'arv-get', "#{@opts[:uuid]}/#{@opts[:file]}"],
                'rb') do |io|
-        while buf = io.read(2**20)
+        while buf = io.read(2**16)
           yield buf
         end
       end