Encapsulates the notion of a mime type. Can be used at render time, for example, with:
class PostsController < ActionController::Base def show @post = Post.find(params[:id]) respond_to do |format| format.html format.ics { render :text => post.to_ics, :mime_type => Mime::Type["text/calendar"] } format.xml { render :xml => @people.to_xml } end end end
# File lib/action_dispatch/http/mime_type.rb, line 83 def lookup(string) LOOKUP[string] end
# File lib/action_dispatch/http/mime_type.rb, line 87 def lookup_by_extension(extension) EXTENSION_LOOKUP[extension.to_s] end
# File lib/action_dispatch/http/mime_type.rb, line 165 def initialize(string, symbol = nil, synonyms = []) @symbol, @synonyms = symbol, synonyms @string = string end
# File lib/action_dispatch/http/mime_type.rb, line 106 def parse(accept_header) if accept_header !~ %r,/ [Mime::Type.lookup(accept_header)] else # keep track of creation order to keep the subsequent sort stable list = [] accept_header.split(%r,/).each_with_index do |header, index| params, q = header.split(%r;\s*q=/) if params params.strip! list << AcceptItem.new(index, params, q) unless params.empty? end end list.sort! # Take care of the broken text/xml entry by renaming or deleting it text_xml = list.index("text/xml") app_xml = list.index(Mime::XML.to_s) if text_xml && app_xml # set the q value to the max of the two list[app_xml].q = [list[text_xml].q, list[app_xml].q].max # make sure app_xml is ahead of text_xml in the list if app_xml > text_xml list[app_xml], list[text_xml] = list[text_xml], list[app_xml] app_xml, text_xml = text_xml, app_xml end # delete text_xml from the list list.delete_at(text_xml) elsif text_xml list[text_xml].name = Mime::XML.to_s end # Look for more specific XML-based types and sort them ahead of app/xml if app_xml idx = app_xml app_xml_type = list[app_xml] while(idx < list.length) type = list[idx] break if type.q < app_xml_type.q if type.name =~ %r\+xml$/ list[app_xml], list[idx] = list[idx], list[app_xml] app_xml = idx end idx += 1 end end list.map! { |i| Mime::Type.lookup(i.name) }.uniq! list end end
# File lib/action_dispatch/http/mime_type.rb, line 97 def register(string, symbol, mime_type_synonyms = [], extension_synonyms = [], skip_lookup = false) Mime.const_set(symbol.to_s.upcase, Type.new(string, symbol, mime_type_synonyms)) SET << Mime.const_get(symbol.to_s.upcase) ([string] + mime_type_synonyms).each { |str| LOOKUP[str] = SET.last } unless skip_lookup ([symbol.to_s] + extension_synonyms).each { |ext| EXTENSION_LOOKUP[ext] = SET.last } end
Registers an alias that's not used on mime type lookup, but can be referenced directly. Especially useful for rendering different HTML versions depending on the user agent, like an iPhone.
# File lib/action_dispatch/http/mime_type.rb, line 93 def register_alias(string, symbol, extension_synonyms = []) register(string, symbol, [], extension_synonyms, true) end
# File lib/action_dispatch/http/mime_type.rb, line 194 def ==(mime_type) return false if mime_type.blank? (@synonyms + [ self ]).any? do |synonym| synonym.to_s == mime_type.to_s || synonym.to_sym == mime_type.to_sym end end
# File lib/action_dispatch/http/mime_type.rb, line 186 def ===(list) if list.is_a?(Array) (@synonyms + [ self ]).any? { |synonym| list.include?(synonym) } else super end end
# File lib/action_dispatch/http/mime_type.rb, line 201 def =~(mime_type) return false if mime_type.blank? regexp = Regexp.new(Regexp.quote(mime_type.to_s)) (@synonyms + [ self ]).any? do |synonym| synonym.to_s =~ regexp end end
# File lib/action_dispatch/http/mime_type.rb, line 215 def html? @@html_types.include?(to_sym) || @string =~ %rhtml/ end
# File lib/action_dispatch/http/mime_type.rb, line 182 def ref to_sym || to_s end
# File lib/action_dispatch/http/mime_type.rb, line 170 def to_s @string end
# File lib/action_dispatch/http/mime_type.rb, line 174 def to_str to_s end
# File lib/action_dispatch/http/mime_type.rb, line 178 def to_sym @symbol end
Returns true if Action Pack should check requests using this Mime Type for possible request forgery. See ActionController::RequestForgeryProtection.
# File lib/action_dispatch/http/mime_type.rb, line 211 def verify_request? @@browser_generated_types.include?(to_sym) end