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fog--fog/lib/fog/rackspace/models/storage/file.rb

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require 'fog/core/model'
module Fog
module Storage
class Rackspace
class File < Fog::Model
identity :key, :aliases => 'name'
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attribute :content_length, :aliases => ['bytes', 'Content-Length'], :type => :integer
attribute :content_type, :aliases => ['content_type', 'Content-Type']
attribute :etag, :aliases => ['hash', 'Etag']
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attribute :last_modified, :aliases => ['last_modified', 'Last-Modified'], :type => :time
attribute :access_control_allow_origin, :aliases => ['Access-Control-Allow-Origin']
attribute :origin, :aliases => ['Origin']
def body
attributes[:body] ||= if last_modified
collection.get(identity).body
else
''
end
end
def body=(new_body)
attributes[:body] = new_body
end
def directory
@directory
end
def copy(target_directory_key, target_file_key, options={})
requires :directory, :key
options['Content-Type'] ||= content_type if content_type
options['Access-Control-Allow-Origin'] ||= access_control_allow_origin if access_control_allow_origin
options['Origin'] ||= origin if origin
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.get(target_file_key)
end
def destroy
requires :directory, :key
service.delete_object(directory.key, key)
true
end
def metadata
@metadata ||= headers_to_metadata
end
def owner=(new_owner)
if new_owner
attributes[:owner] = {
:display_name => new_owner['DisplayName'],
:id => new_owner['ID']
}
end
end
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def public=(new_public)
new_public
end
def public?
directory.public?
end
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def public_url
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requires :key
self.collection.get_url(self.key)
end
def purge_from_cdn
if public?
service.cdn.purge(self)
else
false
end
end
def save(options = {})
requires :body, :directory, :key
options['Content-Type'] = content_type if content_type
options['Access-Control-Allow-Origin'] = access_control_allow_origin if access_control_allow_origin
options['Origin'] = origin if origin
options.merge!(metadata_to_headers)
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data = service.put_object(directory.key, key, body, options)
update_attributes_from(data)
refresh_metadata
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self.content_length = Fog::Storage.get_body_size(body)
self.content_type ||= Fog::Storage.get_content_type(body)
true
end
private
def directory=(new_directory)
@directory = new_directory
end
def refresh_metadata
metadata.reject! {|k, v| v.nil? }
end
def headers_to_metadata
key_map = key_mapping
Hash[metadata_attributes.map {|k, v| [key_map[k], v] }]
end
def key_mapping
key_map = metadata_attributes
key_map.each_pair {|k, v| key_map[k] = header_to_key(k)}
end
def header_to_key(opt)
opt.gsub(metadata_prefix, '').split('-').map {|k| k[0, 1].downcase + k[1..-1]}.join('_').to_sym
end
def metadata_to_headers
hash = {}
metadata.each_pair do |k,v|
key = metakey(k,v)
hash[key] = v
end
hash
end
def metakey(key, value)
prefix = value.nil? ? "X-Remove-Object-Meta-" : "X-Object-Meta-"
prefix + key.to_s.split(/[-_]/).map(&:capitalize).join('-')
end
def metadata_attributes
if last_modified
headers = service.head_object(directory.key, self.key).headers
headers.reject! {|k, v| !metadata_attribute?(k)}
else
{}
end
end
def metadata_attribute?(key)
key.to_s =~ /^#{metadata_prefix}/
end
def metadata_prefix
"X-Object-Meta-"
end
def update_attributes_from(data)
merge_attributes(data.headers.reject {|key, value| ['Content-Length', 'Content-Type'].include?(key)})
end
end
end
end
end