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Class: ActiveStorage::Service::AzureStorageService

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveStorage::Service, ::ActiveSupport::Autoload
Instance Chain:
self, ::ActiveStorage::Service
Inherits: ActiveStorage::Service
Defined in: activestorage/lib/active_storage/service/azure_storage_service.rb

Overview

Active Storage Azure Storage Service

Wraps the Microsoft Azure Storage Blob ::ActiveStorage::Service as an Active Storage service. See ::ActiveStorage::Service for the generic API documentation that applies to all services.

Class Method Summary

::ActiveStorage::Service - Inherited

.configure

Configure an Active Storage service by name from a set of configurations, typically loaded from a YAML file.

::ActiveSupport::Autoload - Extended

autoload, autoload_at, autoload_under, eager_autoload, eager_load!

Instance Attribute Summary

::ActiveStorage::Service - Inherited

#name, #public?

Instance Method Summary

::ActiveStorage::Service - Inherited

#compose

Concatenate multiple files into a single “composed” file.
#delete

Delete the file at the key.
#delete_prefixed

Delete files at keys starting with the prefix.
#download

Return the content of the file at the key.
#download_chunk

Return the partial content in the byte range of the file at the key.
#exist?

Return true if a file exists at the key.
#headers_for_direct_upload

Returns a ::Hash of headers for #url_for_direct_upload requests.
#open,
#update_metadata

Update metadata for the file identified by key in the service.
#upload

Upload the io to the key specified.
#url

Returns the URL for the file at the key.
#url_for_direct_upload

Returns a signed, temporary URL that a direct upload file can be PUT to on the key.

Constructor Details

.new(storage_account_name:, storage_access_key:, container:, public: false, **options) ⇒ AzureStorageService

[ GitHub ] 

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 17



def initialize(storage_account_name:, storage_access_key:, container:, public: false, **options)
  @client = Azure::Storage::Blob::BlobService.create(storage_account_name: , storage_access_key: storage_access_key, **options)
  @signer = Azure::Storage::Common::Core::Auth::SharedAccessSignature.new(, storage_access_key)
  @container = container
  @public = public
end


  







Instance Attribute Details



  

    #client   (readonly)
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 15



attr_reader :client, :container, :signer


  








  

    #container   (readonly)
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 15



attr_reader :client, :container, :signer


  








  

    #signer   (readonly)
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 15



attr_reader :client, :container, :signer


  







Instance Method Details



  

    #compose(source_keys, destination_key, filename: nil, content_type: nil, disposition: nil, custom_metadata: {})  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 112



def compose(source_keys, destination_key, filename: nil, content_type: nil, disposition: nil, custom_metadata: {})
  content_disposition = content_disposition_with(type: disposition, filename: filename) if disposition && filename

  client.create_append_blob(
    container,
    destination_key,
    content_type: content_type,
    content_disposition: content_disposition,
    metadata: custom_metadata,
  ).tap do |blob|
    source_keys.each do |source_key|
      stream(source_key) do |chunk|
        client.append_blob_block(container, blob.name, chunk)
      end
    end
  end
end


  








  

    #delete(key)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 58



def delete(key)
  instrument :delete, key: key do
    client.delete_blob(container, key)
  rescue Azure::Core::Http::HTTPError => e
    raise unless e.type == "BlobNotFound"
    # Ignore files already deleted
  end
end


  








  

    #delete_prefixed(prefix)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 67



def delete_prefixed(prefix)
  instrument :delete_prefixed, prefix: prefix do
    marker = nil

    loop do
      results = client.list_blobs(container, prefix: prefix, marker: marker)

      results.each do |blob|
        client.delete_blob(container, blob.name)
      end

      break unless marker = results.continuation_token.presence
    end
  end
end


  








  

    #download(key, &block)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 34



def download(key, &block)
  if block_given?
    instrument :streaming_download, key: key do
      stream(key, &block)
    end
  else
    instrument :download, key: key do
      handle_errors do
        _, io = client.get_blob(container, key)
        io.force_encoding(Encoding::BINARY)
      end
    end
  end
end


  








  

    #download_chunk(key, range)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 49



def download_chunk(key, range)
  instrument :download_chunk, key: key, range: range do
    handle_errors do
      _, io = client.get_blob(container, key, start_range: range.begin, end_range: range.exclude_end? ? range.end - 1 : range.end)
      io.force_encoding(Encoding::BINARY)
    end
  end
end


  








  

    #exist?(key)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 83



def exist?(key)
  instrument :exist, key: key do |payload|
    answer = blob_for(key).present?
    payload[:exist] = answer
    answer
  end
end


  








  

    #headers_for_direct_upload(key, content_type:, checksum:, filename: nil, disposition: nil, custom_metadata: {})  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 106



def headers_for_direct_upload(key, content_type:, checksum:, filename: nil, disposition: nil, custom_metadata: {}, **)
  content_disposition = content_disposition_with(type: disposition, filename: filename) if filename

  { "Content-Type" => content_type, "Content-MD5" => checksum, "x-ms-blob-content-disposition" => content_disposition, "x-ms-blob-type" => "BlockBlob", **custom_metadata_headers(custom_metadata) }
end


  








  

    #upload(key, io, checksum: nil, filename: nil, content_type: nil, disposition: nil, custom_metadata: {})  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 24



def upload(key, io, checksum: nil, filename: nil, content_type: nil, disposition: nil, custom_metadata: {}, **)
  instrument :upload, key: key, checksum: checksum do
    handle_errors do
      content_disposition = content_disposition_with(filename: filename, type: disposition) if disposition && filename

      client.create_block_blob(container, key, IO.try_convert(io) || io, content_md5: checksum, content_type: content_type, content_disposition: content_disposition, metadata: custom_metadata)
    end
  end
end


  








  

    #url_for_direct_upload(key, expires_in:, content_type:, content_length:, checksum:, custom_metadata: {})  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/azure_storage_service.rb', line 91



def url_for_direct_upload(key, expires_in:, content_type:, content_length:, checksum:, custom_metadata: {})
  instrument :url, key: key do |payload|
    generated_url = signer.signed_uri(
      uri_for(key), false,
      service: "b",
      permissions: "rw",
      expiry: format_expiry(expires_in)
    ).to_s

    payload[:url] = generated_url

    generated_url
  end
end