Sha256: 0d5c8ef5ac67fa4923d324cab5ed85c1665c13446dc1f7d1b595a2e00483d9a5
Contents?: true
Size: 805 Bytes
Versions: 8
Compression:
Stored size: 805 Bytes
Contents
require 'open-uri'
require 'base64'
class Prawn::Svg::UrlLoader
attr_accessor :enable_cache, :enable_web
attr_reader :url_cache
DATAURL_REGEXP = /(data:image\/(png|jpg);base64(;[a-z0-9]+)*,)/
URL_REGEXP = /^https?:\/\/|#{DATAURL_REGEXP}/
def initialize(opts = {})
@url_cache = {}
@enable_cache = opts.fetch(:enable_cache, false)
@enable_web = opts.fetch(:enable_web, true)
end
def valid?(url)
!!url.match(URL_REGEXP)
end
def load(url)
@url_cache[url] || begin
if m = url.match(DATAURL_REGEXP)
data = Base64.decode64(url[m[0].length .. -1])
elsif enable_web
data = open(url).read
else
raise "No handler available to retrieve URL #{url}"
end
@url_cache[url] = data if enable_cache
data
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems