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Class: ActiveStorage::Service::S3Service

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/s3_service.rb

Overview

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 Attribute Summary

::ActiveStorage::Service - Inherited

.url_expires_in, .url_expires_in?

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, autoloads, eager_autoload, eager_load!

Instance Attribute Summary

::ActiveStorage::Service - Inherited

#url_expires_in, #url_expires_in?

Instance Method Summary

::ActiveStorage::Service - Inherited

#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.
#update_metadata

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

Upload the io to the key specified.
#url

Returns a signed, temporary 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(bucket:, upload: {}, **options) ⇒ S3Service

[ GitHub ] 

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 14



def initialize(bucket:, upload: {}, **options)
  @client = Aws::S3::Resource.new(**options)
  @bucket = @client.bucket(bucket)

  @upload_options = upload
end


  







Instance Attribute Details



  

    #bucket   (readonly)
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 12



attr_reader :client, :bucket, :upload_options


  








  

    #client   (readonly)
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 12



attr_reader :client, :bucket, :upload_options


  








  

    #upload_options   (readonly)
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 12



attr_reader :client, :bucket, :upload_options


  







Instance Method Details



  

    #delete(key)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 49



def delete(key)
  instrument :delete, key: key do
    object_for(key).delete
  end
end


  








  

    #delete_prefixed(prefix)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 55



def delete_prefixed(prefix)
  instrument :delete_prefixed, prefix: prefix do
    bucket.objects(prefix: prefix).batch_delete!
  end
end


  








  

    #download(key, &block)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 31



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)
    end
  end
end


  








  

    #download_chunk(key, range)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 43



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.read.force_encoding(Encoding::BINARY)
  end
end


  








  

    #exist?(key)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 61



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


  








  

    #headers_for_direct_upload(key, content_type:, checksum:)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 93



def headers_for_direct_upload(key, content_type:, checksum:, **)
  { "Content-Type" => content_type, "Content-MD5" => checksum }
end


  








  

    #upload(key, io, checksum: nil)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 21



def upload(key, io, checksum: nil, **)
  instrument :upload, key: key, checksum: checksum do
    begin
      object_for(key).put(upload_options.merge(body: io, content_md5: checksum))
    rescue Aws::S3::Errors::BadDigest
      raise ActiveStorage::IntegrityError
    end
  end
end


  








  

    #url(key, expires_in:, filename:, disposition:, content_type:)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 69



def url(key, expires_in:, filename:, disposition:, content_type:)
  instrument :url, key: key do |payload|
    generated_url = 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

    payload[:url] = generated_url

    generated_url
  end
end


  








  

    #url_for_direct_upload(key, expires_in:, content_type:, content_length:, checksum:)  
  

  [ GitHub ]


  

  


# File 'activestorage/lib/active_storage/service/s3_service.rb', line 81



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']

    payload[:url] = generated_url

    generated_url
  end
end