module OpenURI::Meta
Mixin for holding meta-information.
Attributes
returns an Array that consists of status code and message.
Public Instance Methods
returns a charset parameter in Content-Type field. It is downcased for canonicalization.
If charset parameter is not given but a block is given, the block is called and its result is returned. It can be used to guess charset.
If charset parameter and block is not given, nil is returned except text type in HTTP. In that case, “iso-8859-1” is returned as defined by RFC2616 3.7.1.
# File lib/open-uri.rb, line 523 def charset type, *parameters = content_type_parse if pair = parameters.assoc('charset') pair.last.downcase elsif block_given? yield elsif type && %r{\Atext/} =~ type && @base_uri && /\Ahttp\z/i =~ @base_uri.scheme "iso-8859-1" # RFC2616 3.7.1 else nil end end
Returns a list of encodings in Content-Encoding field as an array of strings.
The encodings are downcased for canonicalization.
# File lib/open-uri.rb, line 541 def content_encoding vs = @metas['content-encoding'] if vs && %r{\A#{RE_LWS}?#{RE_TOKEN}#{RE_LWS}?(?:,#{RE_LWS}?#{RE_TOKEN}#{RE_LWS}?)*}o =~ (v = vs.join(', ')) v.scan(RE_TOKEN).map {|content_coding| content_coding.downcase} else [] end end
returns “type/subtype” which is MIME Content-Type. It is downcased for canonicalization. Content-Type parameters are stripped.
# File lib/open-uri.rb, line 508 def content_type type, *_ = content_type_parse type || 'application/octet-stream' end
returns a Time that represents the Last-Modified field.
# File lib/open-uri.rb, line 470 def last_modified if vs = @metas['last-modified'] v = vs.join(', ') Time.httpdate(v) else nil end end