Class: Fog::Storage::AWS::File

Inherits:
Model
  • Object
show all
Defined in:
lib/fog/aws/models/storage/file.rb

Instance Attribute Summary collapse

Attributes inherited from Model

#collection, #service

Instance Method Summary collapse

Methods inherited from Model

#initialize, #inspect, #reload, #symbolize_keys, #to_json, #wait_for

Methods included from Attributes::ClassMethods

#_load, #aliases, #attribute, #attributes, #identity, #ignore_attributes, #ignored_attributes

Methods included from Core::DeprecatedConnectionAccessors

#connection, #connection=, #prepare_service_value

Methods included from Attributes::InstanceMethods

#_dump, #attributes, #dup, #identity, #identity=, #merge_attributes, #new_record?, #persisted?, #requires, #requires_one

Constructor Details

This class inherits a constructor from Fog::Model

Instance Attribute Details

#body ⇒ File

Get file’s body if exists, else ‘ ’.

Returns:



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# File 'lib/fog/aws/models/storage/file.rb', line 54

def body
  attributes[:body] ||= if last_modified && (file = collection.get(identity))
    file.body
  else
    ''
  end
end

#multipart_chunk_size ⇒ Object

Note:

Chunk size to use for multipart uploads. Use small chunk sizes to minimize memory. E.g. 5242880 = 5mb



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# File 'lib/fog/aws/models/storage/file.rb', line 31

def multipart_chunk_size
  @multipart_chunk_size
end

Instance Method Details

#acl=(new_acl) ⇒ String

Set file’s access control list (ACL).

valid acls: private, public-read, public-read-write, authenticated-read

Parameters:

  • new_acl (String) —

    one of valid options

Returns:



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# File 'lib/fog/aws/models/storage/file.rb', line 41

def acl=(new_acl)
  valid_acls = ['private', 'public-read', 'public-read-write', 'authenticated-read']
  unless valid_acls.include?(new_acl)
    raise ArgumentError.new("acl must be one of [#{valid_acls.join(', ')}]")
  end
  @acl = new_acl
end

#copy(target_directory_key, target_file_key, options = {}) ⇒ String

Copy object from one bucket to other bucket.

required attributes: directory, key

Parameters:

  • target_directory_key (String)
  • target_file_key (String)
  • options (Hash) (defaults to: {}) —

    options for copy_object method

Returns:

  • (String) —

    Fog::AWS::Files#head status of directory contents



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# File 'lib/fog/aws/models/storage/file.rb', line 91

def copy(target_directory_key, target_file_key, options = {})
  requires :directory, :key
  service.copy_object(directory.key, key, target_directory_key, target_file_key, options)
  target_directory = service.directories.new(:key => target_directory_key)
  target_directory.files.head(target_file_key)
end

#destroy(options = {}) ⇒ Boolean

Destroy file via http DELETE.

required attributes: directory, key

Parameters:

  • options (Hash) (defaults to: {})

Options Hash (options):

  • versionId (Object) —

Returns:

  • (Boolean) —

    true if successful



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# File 'lib/fog/aws/models/storage/file.rb', line 107

def destroy(options = {})
  requires :directory, :key
  attributes[:body] = nil if options['versionId'] == version
  service.delete_object(directory.key, key, options)
  true
end

#directory ⇒ Fog::AWS::Storage::Directory

Get the file instance’s directory.

Returns:

  • (Fog::AWS::Storage::Directory) 


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# File 'lib/fog/aws/models/storage/file.rb', line 77

def directory
  @directory
end

#metadata ⇒ Object 



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# File 'lib/fog/aws/models/storage/file.rb', line 116

def metadata
  attributes.reject {|key, value| !(key.to_s =~ /^x-amz-/)}
end

#metadata=(new_metadata) ⇒ Object 



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# File 'lib/fog/aws/models/storage/file.rb', line 122

def metadata=(new_metadata)
  merge_attributes(new_metadata)
end

#owner=(new_owner) ⇒ Object 



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# File 'lib/fog/aws/models/storage/file.rb', line 128

def owner=(new_owner)
  if new_owner
    attributes[:owner] = {
      :display_name => new_owner['DisplayName'],
      :id           => new_owner['ID']
    }
  end
end

#public=(new_public) ⇒ String

Set Access-Control-List permissions.

valid new_publics: public_read, private

Parameters:

Returns:



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# File 'lib/fog/aws/models/storage/file.rb', line 145

def public=(new_public)
  if new_public
    @acl = 'public-read'
  else
    @acl = 'private'
  end
  new_public
end

#public_url ⇒ String

Get pubically acessible url via http GET. Checks persmissions before creating. Defaults to s3 subdomain or compliant bucket name

required attributes: directory, key

Returns:



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# File 'lib/fog/aws/models/storage/file.rb', line 163

def public_url
  requires :directory, :key
  if service.get_object_acl(directory.key, key).body['AccessControlList'].detect {|grant| grant['Grantee']['URI'] == 'http://acs.amazonaws.com/groups/global/AllUsers' && grant['Permission'] == 'READ'}
    service.request_url(
      :bucket_name => directory.key,
      :object_name => key
    )
  else
    nil
  end
end

#save(options = {}) ⇒ Boolean

Save file with body as contents to directory.key with name key via http PUT

required attributes: body, directory, key

Parameters:

  • options (Hash) (defaults to: {})

Options Hash (options):

  • acl (String) —

    sets x-amz-acl HTTP header. Valid values include, private | public-read | public-read-write | authenticated-read | bucket-owner-read | bucket-owner-full-control

  • cache_control (String) —

    sets Cache-Control header. For example, ‘No-cache’

  • content_disposition (String) —

    sets Content-Disposition HTTP header. For exampple, ‘attachment; filename=testing.txt’

  • content_encoding (String) —

    sets Content-Encoding HTTP header. For example, ‘x-gzip’

  • content_md5 (String) —

    sets Content-MD5. For example, ‘79054025255fb1a26e4bc422aef54eb4’

  • content_type (String) —

    Content-Type. For example, ‘text/plain’

  • expires (String) —

    sets number of seconds before AWS Object expires.

  • storage_class (String) —

    sets x-amz-storage-class HTTP header. Defaults to ‘STANDARD’. Or, ‘REDUCED_REDUNDANCY’

  • encryption (String) —

    sets HTTP encryption header. Set to ‘AES256’ to encrypt files at rest on S3

Returns:

  • (Boolean) —

    true if no errors



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# File 'lib/fog/aws/models/storage/file.rb', line 191

def save(options = {})
  requires :body, :directory, :key
  if options != {}
    Fog::Logger.deprecation("options param is deprecated, use acl= instead [light_black](#{caller.first})[/]")
  end
  options['x-amz-acl'] ||= @acl if @acl
  options['Cache-Control'] = cache_control if cache_control
  options['Content-Disposition'] = content_disposition if content_disposition
  options['Content-Encoding'] = content_encoding if content_encoding
  options['Content-MD5'] = content_md5 if content_md5
  options['Content-Type'] = content_type if content_type
  options['Expires'] = expires if expires
  options.merge!(metadata)
  options['x-amz-storage-class'] = storage_class if storage_class
  options['x-amz-server-side-encryption'] = encryption if encryption

  if multipart_chunk_size && body.respond_to?(:read)
    data = multipart_save(options)
    merge_attributes(data.body)
  else
    data = service.put_object(directory.key, key, body, options)
    merge_attributes(data.headers.reject {|key, value| ['Content-Length', 'Content-Type'].include?(key)})
  end
  self.etag.gsub!('"','')
  self.content_length = Fog::Storage.get_body_size(body)
  self.content_type ||= Fog::Storage.get_content_type(body)
  true
end

#url(expires, options = {}) ⇒ String

Get a url for file.

required attributes: key

Parameters:

  • expires (String) —

    number of seconds (since 1970-01-01 00:00) before url expires

  • options (Hash) (defaults to: {})

Returns:



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# File 'lib/fog/aws/models/storage/file.rb', line 229

def url(expires, options = {})
  requires :key
  collection.get_url(key, expires, options)
end

#versions ⇒ Fog::Storage::AWS::Version

File version if exists or creates new version.

Returns:



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# File 'lib/fog/aws/models/storage/file.rb', line 238

def versions
  @versions ||= begin
    Fog::Storage::AWS::Versions.new(
      :file         => self,
      :service   => service
    )
  end
end