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121 lines
3.7 KiB
121 lines
3.7 KiB
#-- copyright
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# OpenProject is an open source project management software.
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# Copyright (C) 2012-2022 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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##
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# Attachment helper to be included into endpoints
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module API
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module Helpers
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module AttachmentRenderer
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def self.content_endpoint(&)
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->(*) {
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helpers ::API::Helpers::AttachmentRenderer
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finally do
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set_cache_headers
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end
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get do
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attachment = instance_exec(&)
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respond_with_attachment attachment, cache_seconds: fog_cache_seconds
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end
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}
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end
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##
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# Render an attachment, either by redirecting
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# to the external storage,
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#
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# or by directly rendering the file
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#
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# @param attachment [Attachment] Attachment to be responded with.
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# @param cache_seconds [integer] Time in seconds the cache headers signal the browser to cache the attachment.
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# Defaults to no cache headers.
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def respond_with_attachment(attachment, cache_seconds: nil)
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prepare_cache_headers(cache_seconds) if cache_seconds
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if attachment.external_storage?
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redirect_to_external_attachment(attachment, cache_seconds)
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else
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send_attachment(attachment)
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end
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end
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private
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def redirect_to_external_attachment(attachment, cache_seconds)
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set_cache_headers!
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redirect attachment.external_url(expires_in: cache_seconds).to_s
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end
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def send_attachment(attachment)
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content_type attachment.content_type
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header['Content-Disposition'] = attachment.content_disposition
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env['api.format'] = :binary
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sendfile attachment.diskfile.path
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end
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def set_cache_headers
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set_cache_headers! if @stream
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end
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def prepare_cache_headers(seconds)
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@prepared_cache_headers = { "Cache-Control" => "public, max-age=#{seconds}",
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"Expires" => CGI.rfc1123_date(Time.now.utc + seconds) }
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end
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def set_cache_headers!(seconds = nil)
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prepare_cache_headers(seconds) if seconds
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(@prepared_cache_headers || {}).each do |key, value|
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header key, value
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end
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end
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def fog_cache_seconds
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[
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0,
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OpenProject::Configuration.fog_download_url_expires_in.to_i - 10
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].max
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end
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def avatar_link_expires_in
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seconds = avatar_link_expiry_seconds
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if seconds == 0
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nil
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else
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seconds.seconds
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end
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end
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def avatar_link_expiry_seconds
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@avatar_link_expiry_seconds ||= OpenProject::Configuration.avatar_link_expiry_seconds.to_i
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end
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end
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end
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end
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