59 lines
2.1 KiB
Ruby
59 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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#
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# Copyright (C) 2017 - 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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module GoogleDocsPreview
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PREVIEWABLE_TYPES = %w[
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application/vnd.openxmlformats-officedocument.wordprocessingml.template
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application/vnd.oasis.opendocument.spreadsheet
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application/vnd.sun.xml.writer
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application/excel
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application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
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text/rtf
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text/plain
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application/vnd.openxmlformats-officedocument.spreadsheetml.template
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application/vnd.sun.xml.impress
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application/vnd.sun.xml.calc
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application/vnd.ms-excel
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application/msword
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application/mspowerpoint
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application/rtf
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application/vnd.oasis.opendocument.presentation
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application/vnd.oasis.opendocument.text
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application/vnd.openxmlformats-officedocument.presentationml.template
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application/vnd.openxmlformats-officedocument.presentationml.slideshow
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application/vnd.openxmlformats-officedocument.presentationml.presentation
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application/vnd.openxmlformats-officedocument.wordprocessingml.document
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application/postscript
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application/pdf
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application/vnd.ms-powerpoint
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].freeze
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def self.previewable?(account, attachment)
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account&.service_enabled?(:google_docs_previews) &&
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PREVIEWABLE_TYPES.include?(attachment.content_type) &&
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attachment.downloadable?
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end
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def self.url_for(attachment)
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expires_in = Setting.get("google_docs_previews.link_duration_minutes", "5").to_i.minutes
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attachment.public_url(expires_in:)
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end
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end
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