ffffffff.rb

# BEFORE
# ----------------------------------------------------------------------

# Returns the signature_params as a normalised string in line with
# http://oauth.net/core/1.0#signing_process
def normalise_signature_params(p=signature_params, *hash_path)
  p.sort {|a,b| a.to_s<=>b.to_s}.collect do |key, value|
    path = hash_path.dup
    path << key
    if value.is_a?(Hash) or value.is_a?(Mash)
      normalise_signature_params(value, *path)
    else
      key_path = path.first + path[1..(path.length-1)].collect {|h| "[#{h}]"}.join("")
      "#{CGI.escape key_path.to_s}=#{CGI.escape value.to_s}" rescue raise("The key/value pair #{key_path.inspect} / #{value.inspect} could not be included in the signature.")
    end
  end.join("&")
end

# AFTER
# ----------------------------------------------------------------------

# Returns the signature_params as a normalised string in line with
# http://oauth.net/core/1.0#signing_process
def normalise_signature_params(params=signature_params, *hash_path)
  flatten_params(params).sort {|a,b| a.to_s <=> b.to_s}.collect {|k, v| "#{CGI.escape(k)}=#{CGI.escape(v.to_s)}" }.join("&")
end

def flatten_params(params, *hash_path)
  op = {}
  params.sort {|a,b| a.to_s<=>b.to_s}.each do |key, value|
    path = hash_path.dup
    path << key.to_s

    if value.is_a?(Hash)
      op.merge! flatten_params(value, *path)
    elsif value
      key_path = path.first + path[1..(path.length-1)].collect {|h| "[#{h}]"}.join("")
      op[key_path] = value
    end
  end
  return op
end