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Contents
require "social_avatar_proxy/remote_file_resolver"
module SocialAvatarProxy
class Avatar
attr_reader :identifier
def initialize(identifier)
@identifier = identifier
end
# downloads the avatar from the remote server
def body
response.body
end
# returns whether the avatar returns a successful response
def exist?
@exists ||= begin
# ensure the response is success/redirect
response.code.to_i.between?(200, 399)
end
end
alias_method :exists?, :exist?
# returns the last modified timestamp
def last_modified
@last_modified ||= begin
response["last-modified"] &&
Time.parse(response["last-modified"]) or
Time.now
end
end
# returns the content type of the file
def content_type
@content_type ||= begin
response["content-type"] ||
"image/jpeg"
end
end
# returns whether the avatar has changed
def modified_since?(timestamp)
last_modified > timestamp
end
# in the base Avatar class, we'll use the identifier as the URL
def remote_url
identifier
end
private
# request the remote file
def response
@response ||= RemoteFileResolver.new(remote_url).resolve
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems