Class: ObjectStorage::DirectUpload
Overview
The DirectUpload class generates a set of presigned URLs that can be used to upload data to object storage from untrusted component: Workhorse, Runner?
For Google it assumes that the platform supports variable Content-Length.
For AWS it initiates Multipart Upload and presignes a set of part uploads.
Class calculates the best part size to be able to upload up to asked maximum size.
The number of generated parts will never go above 100,
but we will always try to reduce amount of generated parts.
The part size is rounded-up to 5MB.
Constant Summary
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- TIMEOUT =
4.hours
- EXPIRE_OFFSET =
15.minutes
- MAXIMUM_MULTIPART_PARTS =
100
- MINIMUM_MULTIPART_SIZE =
5.megabytes
Instance Attribute Summary collapse
Instance Method Summary
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#clear_memoization, #strong_memoize, #strong_memoized?
Constructor Details
#initialize(config, object_name, has_length:, maximum_size: nil) ⇒ DirectUpload
Returns a new instance of DirectUpload.
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# File 'lib/object_storage/direct_upload.rb', line 28
def initialize(config, object_name, has_length:, maximum_size: nil)
unless has_length
raise ArgumentError, 'maximum_size has to be specified if length is unknown' unless maximum_size
end
@config = config
@credentials = config.credentials
@bucket_name = config.bucket
@object_name = object_name
@has_length = has_length
@maximum_size = maximum_size
end
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Instance Attribute Details
#bucket_name ⇒ Object
Returns the value of attribute bucket_name.
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# File 'lib/object_storage/direct_upload.rb', line 25
def bucket_name
@bucket_name
end
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#config ⇒ Object
Returns the value of attribute config.
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# File 'lib/object_storage/direct_upload.rb', line 25
def config
@config
end
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#credentials ⇒ Object
Returns the value of attribute credentials.
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# File 'lib/object_storage/direct_upload.rb', line 25
def credentials
@credentials
end
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#has_length ⇒ Object
Returns the value of attribute has_length.
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# File 'lib/object_storage/direct_upload.rb', line 26
def has_length
@has_length
end
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#maximum_size ⇒ Object
Returns the value of attribute maximum_size.
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# File 'lib/object_storage/direct_upload.rb', line 26
def maximum_size
@maximum_size
end
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#object_name ⇒ Object
Returns the value of attribute object_name.
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# File 'lib/object_storage/direct_upload.rb', line 25
def object_name
@object_name
end
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Instance Method Details
#azure_gocloud_url ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 108
def azure_gocloud_url
url = "azblob://#{bucket_name}"
url += "?domain=#{config.azure_storage_domain}" if config.azure_storage_domain.present?
url
end
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#delete_url ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 136
def delete_url
connection.delete_object_url(bucket_name, object_name, expire_at)
end
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#get_url ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 127
def get_url
if config.google?
connection.get_object_https_url(bucket_name, object_name, expire_at)
else
connection.get_object_url(bucket_name, object_name, expire_at)
end
end
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#multipart_abort_url ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 174
def multipart_abort_url
connection.signed_url({
method: 'DELETE',
bucket_name: bucket_name,
object_name: object_name,
query: { 'uploadId' => upload_id }
}, expire_at)
end
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#multipart_complete_url ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 163
def multipart_complete_url
connection.signed_url({
method: 'POST',
bucket_name: bucket_name,
object_name: object_name,
query: { 'uploadId' => upload_id },
headers: { 'Content-Type' => 'application/xml' }
}, expire_at)
end
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#multipart_part_upload_url(part_number) ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 152
def multipart_part_upload_url(part_number)
connection.signed_url({
method: 'PUT',
bucket_name: bucket_name,
object_name: object_name,
query: { 'uploadId' => upload_id, 'partNumber' => part_number },
headers: upload_options
}, expire_at)
end
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#multipart_part_urls ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 145
def multipart_part_urls
Array.new(number_of_multipart_parts) do |part_index|
multipart_part_upload_url(part_index + 1)
end
end
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#multipart_upload_hash ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 53
def multipart_upload_hash
return unless requires_multipart_upload?
{
PartSize: rounded_multipart_part_size,
PartURLs: multipart_part_urls,
CompleteURL: multipart_complete_url,
AbortURL: multipart_abort_url
}
end
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#provider ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 122
def provider
credentials[:provider].to_s
end
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#store_url ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 141
def store_url
connection.put_object_url(bucket_name, object_name, expire_at, upload_options)
end
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#to_hash ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 41
def to_hash
{
Timeout: TIMEOUT,
GetURL: get_url,
StoreURL: store_url,
DeleteURL: delete_url,
MultipartUpload: multipart_upload_hash,
CustomPutHeaders: true,
PutHeaders: upload_options
}.merge(workhorse_client_hash).compact
end
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#use_workhorse_s3_client? ⇒ Boolean
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# File 'lib/object_storage/direct_upload.rb', line 114
def use_workhorse_s3_client?
return false unless config.use_iam_profile? || config.consolidated_settings?
return false unless credentials.fetch(:aws_signature_version, 4).to_i >= 4
true
end
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#workhorse_aws_hash ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 74
def workhorse_aws_hash
{
UseWorkhorseClient: use_workhorse_s3_client?,
RemoteTempObjectID: object_name,
ObjectStorage: {
Provider: 'AWS',
S3Config: {
Bucket: bucket_name,
Region: credentials[:region] || ::Fog::AWS::Storage::DEFAULT_REGION,
Endpoint: credentials[:endpoint],
PathStyle: config.use_path_style?,
UseIamProfile: config.use_iam_profile?,
ServerSideEncryption: config.server_side_encryption,
SSEKMSKeyID: config.server_side_encryption_kms_key_id
}.compact
}
}
end
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#workhorse_azure_hash ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 93
def workhorse_azure_hash
{
UseWorkhorseClient: true,
RemoteTempObjectID: object_name,
ObjectStorage: {
Provider: 'AzureRM',
GoCloudConfig: {
URL: azure_gocloud_url
}
}
}
end
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#workhorse_client_hash ⇒ Object
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# File 'lib/object_storage/direct_upload.rb', line 64
def workhorse_client_hash
if config.aws?
workhorse_aws_hash
elsif config.azure?
workhorse_azure_hash
else
{}
end
end
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