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module Rack
# Rack::MediaType parse media type and parameters out of content_type string
class MediaType
SPLIT_PATTERN = %r{\s*[;,]\s*}
class << self
# The media type (type/subtype) portion of the CONTENT_TYPE header
# without any media type parameters. e.g., when CONTENT_TYPE is
# "text/plain;charset=utf-8", the media-type is "text/plain".
#
# For more information on the use of media types in HTTP, see:
# http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.7
def type(content_type)
return nil unless content_type
content_type.split(SPLIT_PATTERN, 2).first.downcase
end
# The media type parameters provided in CONTENT_TYPE as a Hash, or
# an empty Hash if no CONTENT_TYPE or media-type parameters were
# provided. e.g., when the CONTENT_TYPE is "text/plain;charset=utf-8",
# this method responds with the following Hash:
# { 'charset' => 'utf-8' }
def params(content_type)
return {} if content_type.nil?
Hash[*content_type.split(SPLIT_PATTERN)[1..-1].
collect { |s| s.split('=', 2) }.
map { |k,v| [k.downcase, strip_doublequotes(v)] }.flatten]
end
private
def strip_doublequotes(str)
(str[0] == ?" && str[-1] == ?") ? str[1..-2] : str
end
end
end
end
Version data entries
55 entries across 53 versions & 14 rubygems