59 lines
2.1 KiB
Ruby
59 lines
2.1 KiB
Ruby
#
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# Copyright (C) 2012 - present Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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class CrocodocSessionsController < ApplicationController
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before_action :require_user
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include HmacHelper
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def show
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blob = extract_blob(params[:hmac], params[:blob],
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"user_id" => @current_user.global_id,
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"type" => "crocodoc")
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attachment = Attachment.find(blob["attachment_id"])
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if attachment.crocodoc_available?
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annotations = params[:annotations] ?
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value_to_boolean(params[:annotations]) :
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true
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crocodoc = attachment.crocodoc_document
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url = crocodoc.session_url(:user => @current_user,
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:annotations => annotations,
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:crocodoc_ids => blob["crocodoc_ids"])
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# For the purposes of reporting student viewership, we only
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# care if the original attachment owner is looking
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# Depending on how the attachment came to exist that might be
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# either the context of the attachment or the attachments' user
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if (attachment.context == @current_user) || (attachment.user == @current_user)
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attachment.touch(:viewed_at)
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end
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redirect_to url
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else
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render :plain => "Not found", :status => :not_found
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end
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rescue HmacHelper::Error
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render :plain => 'unauthorized', :status => :unauthorized
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rescue Timeout::Error
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render :plain => "Service is currently unavailable. Try again later.",
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:status => :service_unavailable
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end
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end
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