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def cookies
@env= @env.dup
hash = @env["rack.request.cookie_hash"] ||= {}
string = @env["HTTP_COOKIE"]
return hash if string == @env["rack.request.cookie_string"]
# According to RFC 2109:
# If multiple cookies satisfy the criteria above, they are ordered in
# the Cookie header such that those with more specific Path attributes
# precede those with less specific. Ordering with respect to other
# attributes (e.g., Domain) is unspecified.
cookies = Utils.parse_query(string, ';,') { |s| Rack::Utils.unescape(s) rescue s }
cookies.each { |k,v| hash[k] = Array === v ? v.first : v }
@env["rack.request.cookie_string"] = string
@env = env
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