lib/fog/openstack/storage/requests/get_object_https_url.rb
module Fog
module OpenStack
class Storage
class Real
# Get an expiring object https url from Cloud Files
#
# ==== Parameters
# * container<~String> - Name of container containing object
# * object<~String> - Name of object to get expiring url for
# * expires<~Time> - An expiry time for this url
#
# ==== Returns
# * response<~Excon::Response>:
# * body<~String> - url for object
def get_object_https_url(container, object, expires, options = {})
create_temp_url(container, object, expires, "GET", {:port => 443}.merge(options).merge(:scheme => "https"))
end
# creates a temporary url
#
# ==== Parameters
# * container<~String> - Name of container containing object
# * object<~String> - Name of object to get expiring url for
# * expires<~Time> - An expiry time for this url
# * method<~String> - The method to use for accessing the object (GET, PUT, HEAD)
# * options<~Hash> - An optional options hash
# * 'scheme'<~String> - The scheme to use (http, https)
# * 'host'<~String> - The host to use
# * 'port'<~Integer> - The port to use
# * 'filename'<~String> - Filename returned Content-Disposition response header
#
# ==== Returns
# * response<~Excon::Response>:
# * body<~String> - url for object
#
# ==== See Also
# http://docs.rackspace.com/files/api/v1/cf-devguide/content/Create_TempURL-d1a444.html
# https://developer.openstack.org/api-ref/object-store/?expanded=get-object-content-and-metadata-detail#get-object-content-and-metadata
def create_temp_url(container, object, expires, method, options = {})
raise ArgumentError, "Insufficient parameters specified." unless container && object && expires && method
raise ArgumentError, "Storage must be instantiated with the :openstack_temp_url_key option" if @openstack_temp_url_key.nil?
scheme = options[:scheme] || @openstack_management_uri.scheme
host = options[:host] || @openstack_management_uri.host
port = options[:port] || @openstack_management_uri.port
# POST not allowed
allowed_methods = %w(GET PUT HEAD)
unless allowed_methods.include?(method)
raise ArgumentError, "Invalid method '#{method}' specified. Valid methods are: #{allowed_methods.join(', ')}"
end
expires = expires.to_i
object_path_escaped = "#{@path}/#{Fog::OpenStack.escape(container)}/#{Fog::OpenStack.escape(object, "/")}"
object_path_unescaped = "#{@path}/#{Fog::OpenStack.escape(container)}/#{object}"
string_to_sign = "#{method}\n#{expires}\n#{object_path_unescaped}"
hmac = Fog::HMAC.new('sha1', @openstack_temp_url_key.to_s)
query = {
temp_url_sig: sig_to_hex(hmac.sign(string_to_sign)),
temp_url_expires: expires
}
query[:filename] = options[:filename] if options[:filename]
temp_url_options = {
:scheme => scheme,
:host => host,
:port => port,
:path => object_path_escaped,
:query => query.map { |k, v| "#{k}=#{v}" }.join('&')
}
URI::Generic.build(temp_url_options).to_s
end
private
def sig_to_hex(str)
str.unpack("C*").map do |c|
c.to_s(16)
end.map do |h|
h.size == 1 ? "0#{h}" : h
end.join
end
end
end
end
end