JezK
Edit File: uri_utils.rb
require 'uri' module Sprockets # Internal: Asset URI related parsing utilities. Mixed into Environment. # # An Asset URI identifies the compiled Asset result. It shares the file: # scheme and requires an absolute path. # # Other query parameters # # type - String output content type. Otherwise assumed from file extension. # This maybe different than the extension if the asset is transformed # from one content type to another. For an example .coffee -> .js. # # id - Unique fingerprint of the entire asset and all its metadata. Assets # will only have the same id if they serialize to an identical value. # # pipeline - String name of pipeline. # module URIUtils extend self # Internal: Parse URI into component parts. # # uri - String uri # # Returns Array of components. def split_uri(uri) URI.split(uri) end # Internal: Join URI component parts into String. # # Returns String. def join_uri(scheme, userinfo, host, port, registry, path, opaque, query, fragment) URI::Generic.new(scheme, userinfo, host, port, registry, path, opaque, query, fragment).to_s end # Internal: Parse file: URI into component parts. # # uri - String uri # # Returns [scheme, host, path, query]. def split_file_uri(uri) scheme, _, host, _, _, path, _, query, _ = URI.split(uri) path = URI::Generic::DEFAULT_PARSER.unescape(path) path.force_encoding(Encoding::UTF_8) # Hack for parsing Windows "file:///C:/Users/IEUser" paths path.gsub!(/^\/([a-zA-Z]:)/, '\1'.freeze) [scheme, host, path, query] end # Internal: Join file: URI component parts into String. # # Returns String. def join_file_uri(scheme, host, path, query) str = "#{scheme}://" str << host if host path = "/#{path}" unless path.start_with?("/") str << URI::Generic::DEFAULT_PARSER.escape(path) str << "?#{query}" if query str end # Internal: Check if String is a valid Asset URI. # # str - Possible String asset URI. # # Returns true or false. def valid_asset_uri?(str) # Quick prefix check before attempting a full parse str.start_with?("file://") && parse_asset_uri(str) ? true : false rescue URI::InvalidURIError false end # Internal: Parse Asset URI. # # Examples # # parse("file:///tmp/js/application.coffee?type=application/javascript") # # => "/tmp/js/application.coffee", {type: "application/javascript"} # # uri - String asset URI # # Returns String path and Hash of symbolized parameters. def parse_asset_uri(uri) scheme, _, path, query = split_file_uri(uri) unless scheme == 'file' raise URI::InvalidURIError, "expected file:// scheme: #{uri}" end return path, parse_uri_query_params(query) end # Internal: Build Asset URI. # # Examples # # build("/tmp/js/application.coffee", type: "application/javascript") # # => "file:///tmp/js/application.coffee?type=application/javascript" # # path - String file path # params - Hash of optional parameters # # Returns String URI. def build_asset_uri(path, params = {}) join_file_uri("file", nil, path, encode_uri_query_params(params)) end # Internal: Parse file-digest dependency URI. # # Examples # # parse("file-digest:/tmp/js/application.js") # # => "/tmp/js/application.js" # # uri - String file-digest URI # # Returns String path. def parse_file_digest_uri(uri) scheme, _, path, _ = split_file_uri(uri) unless scheme == 'file-digest'.freeze raise URI::InvalidURIError, "expected file-digest scheme: #{uri}" end path end # Internal: Build file-digest dependency URI. # # Examples # # build("/tmp/js/application.js") # # => "file-digest:/tmp/js/application.js" # # path - String file path # # Returns String URI. def build_file_digest_uri(path) join_file_uri('file-digest'.freeze, nil, path, nil) end # Internal: Serialize hash of params into query string. # # params - Hash of params to serialize # # Returns String query or nil if empty. def encode_uri_query_params(params) query = [] params.each do |key, value| case value when Integer query << "#{key}=#{value}" when String, Symbol query << "#{key}=#{URI::Generic::DEFAULT_PARSER.escape(value.to_s)}" when TrueClass query << "#{key}" when FalseClass, NilClass else raise TypeError, "unexpected type: #{value.class}" end end "#{query.join('&')}" if query.any? end # Internal: Parse query string into hash of params # # query - String query string # # Return Hash of params. def parse_uri_query_params(query) query.to_s.split('&').reduce({}) do |h, p| k, v = p.split('=', 2) v = URI::Generic::DEFAULT_PARSER.unescape(v) if v h[k.to_sym] = v || true h end end end end