Mixin for holding meta-information.
returns an Array that consists of status code and message.
# File lib/open-uri.rb, line 572
def charset
type, *parameters = content_type_parse
if pair = parameters.assoc('charset')
pair.last.downcase
elsif block_given?
yield
elsif type && %r{\Atext/} =~ type
"utf-8" # RFC6838 4.2.1
else
nil
end
end 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 that case, “utf-8” is returned as defined by RFC6838 4.2.1
# File lib/open-uri.rb, line 589
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 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 557 def content_type type, *_ = content_type_parse type || 'application/octet-stream' 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 526
def last_modified
if vs = @metas['last-modified']
v = vs.join(', ')
Time.httpdate(v)
else
nil
end
end returns a Time that represents the Last-Modified field.
Ruby Core © 1993–2025 Yukihiro Matsumoto
Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.