Submit social housing lettings and sales data (CORE)
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module Storage
class S3Service < StorageService
attr_reader :configuration
def initialize(config_service, instance_name)
super()
@config_service = config_service
@instance_name = (instance_name || "").to_sym
@configuration = create_configuration
@client = create_client
end
def list_files(folder)
@client.list_objects_v2(bucket: @configuration.bucket_name, prefix: folder)
.flat_map { |response| response.contents.map(&:key) }
end
def folder_present?(folder)
response = @client.list_objects_v2(bucket: @configuration.bucket_name, prefix: folder, max_keys: 1)
response.key_count == 1
end
def get_presigned_url(file_name, duration, response_content_disposition: nil)
Aws::S3::Presigner
.new({ client: @client })
.presigned_url(:get_object, bucket: @configuration.bucket_name, key: file_name, expires_in: duration, response_content_disposition:)
end
def get_file_io(file_name)
@client.get_object(bucket: @configuration.bucket_name, key: file_name)
.body
end
def get_file(file_name)
@client.get_object(bucket: @configuration.bucket_name, key: file_name)
.body.read
end
def write_file(file_name, data, content_type: nil)
if content_type.nil?
@client.put_object(
body: data,
bucket: @configuration.bucket_name,
key: file_name,
)
else
@client.put_object(
body: data,
bucket: @configuration.bucket_name,
key: file_name,
content_type:,
)
end
end
def get_file_metadata(file_name)
@client.head_object(bucket: @configuration.bucket_name, key: file_name)
end
def file_exists?(file_name)
@client.head_object(bucket: @configuration.bucket_name, key: file_name)
true
rescue Aws::S3::Errors::NotFound
false
end
def delete_file(file_name)
@client.delete_object(bucket: @configuration.bucket_name, key: file_name)
end
private
def create_configuration
unless @config_service.s3_config_present?
raise "No S3 bucket is present in the configuration"
end
unless @config_service.s3_buckets.key?(@instance_name)
raise "#{@instance_name} instance name could not be found"
end
bucket_config = @config_service.s3_buckets[@instance_name]
StorageConfiguration.new(bucket_config[:credentials])
end
def create_client
credentials = Aws::ECSCredentials.new
Aws::S3::Client.new(
region: @configuration.region,
credentials:,
)
end
end
class StorageConfiguration
attr_reader :access_key_id, :secret_access_key, :bucket_name, :region
def initialize(credentials)
@access_key_id = credentials[:aws_access_key_id]
@secret_access_key = credentials[:aws_secret_access_key]
@bucket_name = credentials[:bucket_name]
@region = credentials[:aws_region]
end
def ==(other)
@access_key_id == other.access_key_id &&
@secret_access_key == other.secret_access_key &&
@bucket_name == other.bucket_name &&
@region == other.region
end
end
end