Module: Protocol::HTTP::QuotedString

Defined in:
lib/protocol/http/quoted_string.rb

Overview

Handling of HTTP quoted strings.

Constant Summary collapse

QUOTES_REQUIRED = 
/[()<>@,;:\\"\/\[\]?={} \t]/

Class Method Summary collapse

Class Method Details

.quote(value, force = false) ⇒ Object

Quote a string for HTTP header values if required.



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# File 'lib/protocol/http/quoted_string.rb', line 37

def self.quote(value, force = false)
  # Check if quoting is required:
  if value =~ QUOTES_REQUIRED or force
    "\"#{value.gsub(/["\\]/, '\\\\\0')}\""
  else
    value
  end
end

.unquote(value, normalize_whitespace = true) ⇒ Object

Unquote a “quoted-string” value according to <tools.ietf.org/html/rfc7230#section-3.2.6>. It should already match the QUOTED_STRING pattern above by the parser.



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# File 'lib/protocol/http/quoted_string.rb', line 19

def self.unquote(value, normalize_whitespace = true)
  value = value[1...-1]
  
  value.gsub!(/\\(.)/, '\1')
  
  if normalize_whitespace
    # LWS = [CRLF] 1*( SP | HT )
    value.gsub!(/[\r\n]+\s+/, " ")
  end
  
  return value
end