canvas-lms/app/controllers/crocodoc_sessions_controlle...

64 lines
2.1 KiB
Ruby

#
# Copyright (C) 2012 Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
class CrocodocSessionsController < ApplicationController
before_filter :require_user
def create
attachment = Attachment.find(params[:attachment_id])
submission = Submission.find(params[:submission_id]) if params[:submission_id]
if submission
if params[:version]
submission = submission.submission_history[params[:version].to_i]
end
# make sure the attachment is tied to this submission
attachment_ids = (submission.attachment_ids || "").split(',')
unless attachment_ids.include? attachment.id.to_s
raise ActiveRecord::RecordNotFound
end
unless submission.grants_right? @current_user, session, :read
render :text => 'unauthorized', :status => :unauthorized
return
end
else
unless attachment.grants_right? @current_user, session, :download
render :text => 'unauthorized', :status => :unauthorized
return
end
end
if attachment.crocodoc_available?
annotations = params[:annotations] ?
value_to_boolean(params[:annotations]) :
true
crocodoc = attachment.crocodoc_document
session_url = crocodoc.session_url :user => @current_user,
:annotations => annotations
respond_to do |format|
format.json { render :json => {:session_url => session_url} }
end
else
raise ActiveRecord::RecordNotFound
end
end
end