canvadocs annotations

closes CNVS-20189
closes CNVS-19902

Test plan:
  * enable canvadocs and crocodoc
    * enable annotations for canvadocs
  * homework submissions should be submitted to canvadocs (not crocodoc)
    (you can tell the difference by the unicycling panda)
  * disable crocodoc
  * annotations should still work (through canvadocs)
  * annotations should work the same as they did through crocodoc (but
    now more doc types are supported)

Change-Id: I041b40d2545545c7766b57f98ea194b777fdef30
Reviewed-on: https://gerrit.instructure.com/59697
Tested-by: Jenkins
Reviewed-by: Josh Simpson <jsimpson@instructure.com>
QA-Review: Jason Carter <jcarter@instructure.com>
Product-Review: Cameron Matheson <cameron@instructure.com>

app/controllers/canvadoc_sessions_controller.rb

@@ -31,7 +31,7 @@ class CanvadocSessionsController < ApplicationController
 
     if attachment.canvadocable?
       attachment.submit_to_canvadocs unless attachment.canvadoc_available?
-      url = attachment.canvadoc.session_url
+      url = attachment.canvadoc.session_url(user: @current_user)
       redirect_to url
     else
       render :text => "Not found", :status => :not_found

app/models/attachment.rb

@@ -1198,7 +1198,10 @@ class Attachment < ActiveRecord::Base
     # ... or crocodoc (this will go away soon)
     return if Attachment.skip_3rd_party_submits?
 
-    if opts[:wants_annotation] && crocodocable?
+    submit_to_crocodoc_instead = opts[:wants_annotation] &&
+                                 crocodocable? &&
+                                 !Canvadocs.annotations_supported?
+    if submit_to_crocodoc_instead
       # get crocodoc off the canvadocs strand
       # (maybe :wants_annotation was a dumb idea)
       send_later_enqueue_args :submit_to_crocodoc, {
@@ -1208,12 +1211,12 @@ class Attachment < ActiveRecord::Base
       }, attempt
     elsif canvadocable?
       doc = canvadoc || create_canvadoc
-      doc.upload
+      doc.upload annotatable: opts[:wants_annotation]
       update_attribute(:workflow_state, 'processing')
     end
   rescue => e
     update_attribute(:workflow_state, 'errored')
-    Canvas::Errors.capture(e, type: :canvadocs, attachment_id: id)
+    Canvas::Errors.capture(e, type: :canvadocs, attachment_id: id, annotatable: opts[:wants_annotation])
 
     if attempt <= Setting.get('max_canvadocs_attempts', '5').to_i
       send_later_enqueue_args :submit_to_canvadocs, {

app/models/canvadoc.rb

@@ -21,17 +21,20 @@ class Canvadoc < ActiveRecord::Base
 
   belongs_to :attachment
 
-  def upload
+  def upload(opts = {})
     return if document_id.present?
 
     url = attachment.authenticated_s3_url(:expires => 1.day)
 
     response = Canvas.timeout_protection("canvadocs") {
-      canvadocs_api.upload(url)
+      canvadocs_api.upload(url, opts)
     }
 
     if response && response['id']
-      update_attributes document_id: response['id'], process_state: response['status']
+      self.document_id = response['id']
+      self.process_state = response['status']
+      self.has_annotations = opts[:annotatable]
+      self.save!
     elsif response.nil?
       raise "no response received (request timed out?)"
     else
@@ -39,13 +42,48 @@ class Canvadoc < ActiveRecord::Base
     end
   end
 
-  def session_url
+  def session_url(opts = {})
+    user = opts.delete(:user)
+    opts.merge! annotation_opts(user)
+
     Canvas.timeout_protection("canvadocs", raise_on_timeout: true) do
-      session = canvadocs_api.session(document_id)
+      session = canvadocs_api.session(document_id, opts)
       canvadocs_api.view(session["id"])
     end
   end
 
+  def annotation_opts(user)
+    return {} if !user || !has_annotations?
+
+    opts = {
+      annotation_context: "default",
+      permissions: "readwrite",
+      user_id: user.global_id,
+      user_name: user.short_name.gsub(",", ""),
+      user_role: "",
+      user_filter: user.global_id,
+    }
+
+    submissions = attachment.attachment_associations.
+      where(:context_type => 'Submission').
+      preload(context: [:assignment]).
+      map(&:context)
+
+    return opts if submissions.empty?
+
+    if submissions.any? { |s| s.grants_right? user, :read_grade }
+      opts.delete :user_filter
+    end
+
+    # no commenting when anonymous peer reviews are enabled
+    if submissions.map(&:assignment).any? { |a| a.peer_reviews? && a.anonymouis_peer_reviews? }
+      opts = {}
+    end
+
+    opts
+  end
+  private :annotation_opts
+
   def available?
     !!(document_id && process_state != 'error' && Canvadocs.enabled?)
   end

app/views/plugins/_canvadocs_settings.html.erb

@@ -14,6 +14,9 @@
       <td><%= f.blabel :base_url, :en => "Base URL" %></td>
       <td><%= f.text_field :base_url %></td>
     </tr>
+    <tr>
+      <td><%= f.blabel :annotations_supported, :en => "Annotations Supported" %></td>
+      <td><%= f.check_box :annotations_supported %></td>
   </table>
 <% end %>
 

db/migrate/20150730222557_add_has_annotations_to_canvadocs.rb

@@ -0,0 +1,7 @@
+class AddHasAnnotationsToCanvadocs < ActiveRecord::Migration
+  tag :predeploy
+
+  def change
+    add_column :canvadocs, :has_annotations, :bool
+  end
+end

lib/canvadocs.rb

@@ -35,6 +35,7 @@ module Canvadocs
     # Public: Create a document with the file at the given url.
     #
     # obj - a url string
+    # params - other post params
     #
     # Examples
     #
@@ -42,12 +43,12 @@ module Canvadocs
     #   # => { "id": 1234, "status": "queued" }
     #
     # Returns a hash containing the document's id and status
-    def upload(obj)
+    def upload(obj, extra_params = {})
       params = if obj.is_a?(File)
-        { :file => obj }
+        { :file => obj }.merge(extra_params)
         raise Canvadocs::Error, "TODO: support raw files"
       else
-        { :url => obj.to_s }
+        { :url => obj.to_s }.merge(extra_params)
       end
 
       raw_body = api_call(:post, "documents", params)
@@ -175,4 +176,8 @@ module Canvadocs
   def self.enabled?
     !!config
   end
+
+  def self.annotations_supported?
+    Canvas::Plugin.value_to_boolean config["annotations_supported"]
+  end
 end

spec/models/attachment_spec.rb

@@ -69,6 +69,15 @@ describe Attachment do
     Crocodoc::API.any_instance.stubs(:upload).returns 'uuid' => '1234567890'
   end
 
+  def configure_canvadocs(opts = {})
+    ps = PluginSetting.where(name: "canvadocs").first_or_create
+    ps.update_attribute :settings, {
+      "api_key" => "blahblahblahblahblah",
+      "base_url" => "http://example.com",
+      "annotations_supported" => true
+    }.merge(opts)
+  end
+
   context "crocodoc" do
     include HmacHelper
     let_once(:user) { user_model }
@@ -148,9 +157,7 @@ describe Attachment do
 
   context "canvadocs" do
     before :once do
-      PluginSetting.create! :name => 'canvadocs',
-        :settings => {"api_key" => "blahblahblahblahblah",
-                      "base_url" => "http://example.com"}
+      configure_canvadocs
     end
 
     before :each do
@@ -183,8 +190,16 @@ describe Attachment do
         }
       end
 
-      it "prefers crocodoc when annotation is requested" do
+      it "sends annotatable documents to canvadocs if supported" do
         configure_crocodoc
+        a = crocodocable_attachment_model
+        a.submit_to_canvadocs 1, wants_annotation: true
+        expect(a.canvadoc).not_to be_nil
+      end
+
+      it "prefers crocodoc when annotation is requested and canvadocs can't annotate" do
+        configure_crocodoc
+        configure_canvadocs "annotations_supported" => false
         Setting.set('canvadoc_mime_types',
                     (Canvadoc.mime_types << "application/blah").to_json)