mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
84057dab16
whitelist_headers support added in 1.48.0: https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-sdk-s3/CHANGELOG.md#1480-2019-08-30
147 lines
5.1 KiB
Ruby
147 lines
5.1 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
gem "aws-sdk-s3", "~> 1.48"
|
|
|
|
require "aws-sdk-s3"
|
|
require "active_support/core_ext/numeric/bytes"
|
|
|
|
module ActiveStorage
|
|
# Wraps the Amazon Simple Storage Service (S3) as an Active Storage service.
|
|
# See ActiveStorage::Service for the generic API documentation that applies to all services.
|
|
class Service::S3Service < Service
|
|
attr_reader :client, :bucket
|
|
attr_reader :multipart_upload_threshold, :upload_options
|
|
|
|
def initialize(bucket:, upload: {}, public: false, **options)
|
|
@client = Aws::S3::Resource.new(**options)
|
|
@bucket = @client.bucket(bucket)
|
|
|
|
@multipart_upload_threshold = upload.fetch(:multipart_threshold, 100.megabytes)
|
|
@public = public
|
|
|
|
@upload_options = upload
|
|
@upload_options[:acl] = "public-read" if public?
|
|
end
|
|
|
|
def upload(key, io, checksum: nil, filename: nil, content_type: nil, disposition: nil, **)
|
|
instrument :upload, key: key, checksum: checksum do
|
|
content_disposition = content_disposition_with(filename: filename, type: disposition) if disposition && filename
|
|
|
|
if io.size < multipart_upload_threshold
|
|
upload_with_single_part key, io, checksum: checksum, content_type: content_type, content_disposition: content_disposition
|
|
else
|
|
upload_with_multipart key, io, content_type: content_type, content_disposition: content_disposition
|
|
end
|
|
end
|
|
end
|
|
|
|
def download(key, &block)
|
|
if block_given?
|
|
instrument :streaming_download, key: key do
|
|
stream(key, &block)
|
|
end
|
|
else
|
|
instrument :download, key: key do
|
|
object_for(key).get.body.string.force_encoding(Encoding::BINARY)
|
|
rescue Aws::S3::Errors::NoSuchKey
|
|
raise ActiveStorage::FileNotFoundError
|
|
end
|
|
end
|
|
end
|
|
|
|
def download_chunk(key, range)
|
|
instrument :download_chunk, key: key, range: range do
|
|
object_for(key).get(range: "bytes=#{range.begin}-#{range.exclude_end? ? range.end - 1 : range.end}").body.string.force_encoding(Encoding::BINARY)
|
|
rescue Aws::S3::Errors::NoSuchKey
|
|
raise ActiveStorage::FileNotFoundError
|
|
end
|
|
end
|
|
|
|
def delete(key)
|
|
instrument :delete, key: key do
|
|
object_for(key).delete
|
|
end
|
|
end
|
|
|
|
def delete_prefixed(prefix)
|
|
instrument :delete_prefixed, prefix: prefix do
|
|
bucket.objects(prefix: prefix).batch_delete!
|
|
end
|
|
end
|
|
|
|
def exist?(key)
|
|
instrument :exist, key: key do |payload|
|
|
answer = object_for(key).exists?
|
|
payload[:exist] = answer
|
|
answer
|
|
end
|
|
end
|
|
|
|
def url_for_direct_upload(key, expires_in:, content_type:, content_length:, checksum:)
|
|
instrument :url, key: key do |payload|
|
|
generated_url = object_for(key).presigned_url :put, expires_in: expires_in.to_i,
|
|
content_type: content_type, content_length: content_length, content_md5: checksum,
|
|
whitelist_headers: ["content-length"], **upload_options
|
|
|
|
payload[:url] = generated_url
|
|
|
|
generated_url
|
|
end
|
|
end
|
|
|
|
def headers_for_direct_upload(key, content_type:, checksum:, filename: nil, disposition: nil, **)
|
|
content_disposition = content_disposition_with(type: disposition, filename: filename) if filename
|
|
|
|
{ "Content-Type" => content_type, "Content-MD5" => checksum, "Content-Disposition" => content_disposition }
|
|
end
|
|
|
|
private
|
|
def private_url(key, expires_in:, filename:, disposition:, content_type:, **)
|
|
object_for(key).presigned_url :get, expires_in: expires_in.to_i,
|
|
response_content_disposition: content_disposition_with(type: disposition, filename: filename),
|
|
response_content_type: content_type
|
|
end
|
|
|
|
def public_url(key, **)
|
|
object_for(key).public_url
|
|
end
|
|
|
|
|
|
MAXIMUM_UPLOAD_PARTS_COUNT = 10000
|
|
MINIMUM_UPLOAD_PART_SIZE = 5.megabytes
|
|
|
|
def upload_with_single_part(key, io, checksum: nil, content_type: nil, content_disposition: nil)
|
|
object_for(key).put(body: io, content_md5: checksum, content_type: content_type, content_disposition: content_disposition, **upload_options)
|
|
rescue Aws::S3::Errors::BadDigest
|
|
raise ActiveStorage::IntegrityError
|
|
end
|
|
|
|
def upload_with_multipart(key, io, content_type: nil, content_disposition: nil)
|
|
part_size = [ io.size.fdiv(MAXIMUM_UPLOAD_PARTS_COUNT).ceil, MINIMUM_UPLOAD_PART_SIZE ].max
|
|
|
|
object_for(key).upload_stream(content_type: content_type, content_disposition: content_disposition, part_size: part_size, **upload_options) do |out|
|
|
IO.copy_stream(io, out)
|
|
end
|
|
end
|
|
|
|
|
|
def object_for(key)
|
|
bucket.object(key)
|
|
end
|
|
|
|
# Reads the object for the given key in chunks, yielding each to the block.
|
|
def stream(key)
|
|
object = object_for(key)
|
|
|
|
chunk_size = 5.megabytes
|
|
offset = 0
|
|
|
|
raise ActiveStorage::FileNotFoundError unless object.exists?
|
|
|
|
while offset < object.content_length
|
|
yield object.get(range: "bytes=#{offset}-#{offset + chunk_size - 1}").body.string.force_encoding(Encoding::BINARY)
|
|
offset += chunk_size
|
|
end
|
|
end
|
|
end
|
|
end
|