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# frozen_string_literal: true
require "carrierwave/storage/fog"
# This pulls in https://github.com/carrierwaveuploader/carrierwave/pull/2504 to support
# sending AWS S3 encryption headers when copying objects.
#
# This patch also incorporates
# https://github.com/carrierwaveuploader/carrierwave/pull/2375 to
# provide Azure support
# and https://github.com/carrierwaveuploader/carrierwave/pull/2397 to
# support custom expire_at. This is already in CarrierWave v2.1.x, but
# upgrading this gem is a significant task:
# https://gitlab.com/gitlab-org/gitlab/-/issues/216067
module CarrierWave
module Storage
class Fog < Abstract
class File
def copy_to(new_path)
# fog-aws needs multipart uploads to copy files above 5 GB,
# and it is currently the only Fog provider that supports
# multithreaded uploads (https://github.com/fog/fog-aws/pull/579).
# Multithreaded uploads are essential for copying large amounts of data
# within the request timeout.
if ::Feature.enabled?(:s3_multithreaded_uploads) && fog_provider == 'AWS'
# AWS SDK uses 10 threads by default and a multipart chunk size of 10 MB
file.concurrency = 10
file.multipart_chunk_size = 10485760
file.copy(@uploader.fog_directory, new_path, copy_to_options)
else
# Some Fog providers may issue a GET request (https://github.com/fog/fog-google/issues/512)
# instead of a HEAD request after the transfer completes,
# which might cause the file to be downloaded locally.
# We fallback to the original copy_object for non-AWS providers.
connection.copy_object(@uploader.fog_directory, file.key, @uploader.fog_directory, new_path, copy_to_options)
end
CarrierWave::Storage::Fog::File.new(@uploader, @base, new_path)
end
def copy_to_options
acl_header.merge(@uploader.fog_attributes)
end
def authenticated_url(options = {})
if %w[AWS Google Rackspace OpenStack AzureRM].include?(@uploader.fog_credentials[:provider])
# avoid a get by using local references
local_directory = connection.directories.new(key: @uploader.fog_directory)
local_file = local_directory.files.new(key: path)
expire_at = options[:expire_at] || ::Fog::Time.now + @uploader.fog_authenticated_url_expiration
case @uploader.fog_credentials[:provider]
when 'AWS', 'Google', 'AzureRM'
local_file.url(expire_at, options)
when 'Rackspace'
connection.get_object_https_url(@uploader.fog_directory, path, expire_at, options)
when 'OpenStack'
connection.get_object_https_url(@uploader.fog_directory, path, expire_at)
else
local_file.url(expire_at)
end
end
end
end
end
end
end
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