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125 lines
4.0 KiB
125 lines
4.0 KiB
#-- copyright
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# OpenProject is an open source project management software.
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# Copyright (C) 2012-2021 the OpenProject GmbH
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License version 3.
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#
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# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
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# Copyright (C) 2006-2013 Jean-Philippe Lang
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# See COPYRIGHT and LICENSE files for more details.
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#++
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require 'carrierwave/storage/fog'
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class FogFileUploader < CarrierWave::Uploader::Base
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include FileUploader
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storage :fog
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# Delete cache and old rack file after store
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# cf. https://github.com/carrierwaveuploader/carrierwave/wiki/How-to:-Delete-cache-garbage-directories
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before :store, :remember_cache_id
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after :store, :delete_tmp_dir
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after :store, :delete_old_tmp_file
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def copy_to(attachment)
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attachment.remote_file_url = remote_file.url
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end
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def store_dir
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"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
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end
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def remote_file
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@remote_file || file
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end
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def local_file
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@remote_file ||= file
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cache_stored_file!
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super
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end
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##
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# This is necessary for carrierwave to set the Content-Type in the S3 metadata for instance.
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def fog_attributes
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content_type = model.respond_to?(:content_type) ? model.content_type : ""
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return super if content_type.blank?
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super.merge "Content-Type": content_type
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end
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##
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# Generates a download URL for this file.
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#
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# @param options [Hash] Options hash.
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# @option options [String] :content_disposition Pass this content disposition to S3 so that it serves the file with it.
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# @option options [DateTime] :expires_at Date at which the link should expire (default: now + 5 minutes)
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# @option options [ActiveSupport::Duration] :expires_in Duration in which the link should expire.
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#
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# @return [String] The URL to download the file from.
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def download_url(options = {})
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url_options = {}
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set_content_disposition! url_options, options: options
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set_expires_at! url_options, options: options
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remote_file.url url_options
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end
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##
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# Checks if this file exists and is readable in the remote storage.
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#
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# In the current version of carrierwave the call to #exists?
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# throws an error if the file does not exist:
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#
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# Excon::Errors::Forbidden: Expected(200) <=> Actual(403 Forbidden)
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def readable?
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remote_file&.exists?
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rescue Excon::Errors::Forbidden
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false
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end
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private
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def set_content_disposition!(url_options, options:)
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if options[:content_disposition].present?
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url_options[:query] = {
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# Passing this option to S3 will make it serve the file with the
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# respective content disposition. Without it no content disposition
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# header is sent. This only works for S3 but we don't support
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# anything else anyway (see carrierwave.rb).
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"response-content-disposition" => options[:content_disposition]
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}
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end
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end
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def set_expires_at!(url_options, options:)
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if options[:expires_in].present?
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expires = [options[:expires_in], OpenProject::Configuration.fog_download_url_expires_in].min
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url_options[:expire_at] = ::Fog::Time.now + expires
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end
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if options[:expires_at].present?
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url_options[:expire_at] = ::Fog::Time.at options[:expires_at] - ::Fog::Time.offset
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end
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end
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end
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