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# frozen_string_literal: true
module DependencyProxy
class DownloadBlobService < DependencyProxy::BaseService
class DownloadError < StandardError
attr_reader :http_status
def initialize(message, http_status)
@http_status = http_status
super(message)
end
end
def initialize(image, blob_sha, token)
@image = image
@blob_sha = blob_sha
@token = token
@temp_file = Tempfile.new
end
def execute
File.open(@temp_file.path, "wb") do |file|
Gitlab::HTTP.get(blob_url, headers: auth_headers, stream_body: true) do |fragment|
if [301, 302, 307].include?(fragment.code)
# do nothing
elsif fragment.code == 200
file.write(fragment)
else
raise DownloadError.new('Non-success response code on downloading blob fragment', fragment.code)
end
end
end
success(file: @temp_file)
rescue DownloadError => exception
error(exception.message, exception.http_status)
rescue Timeout::Error => exception
error(exception.message, 599)
end
private
def blob_url
registry.blob_url(@image, @blob_sha)
end
end
end
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