utils.rb

Path: lib/rack/utils.rb
Last Update: Wed Feb 27 15:42:58 +0000 2013

Required files

set   tempfile  

Methods

Constants

HTTP_STATUS_CODES = { 100 => 'Continue', 101 => 'Switching Protocols', 102 => 'Processing', 200 => 'OK', 201 => 'Created', 202 => 'Accepted', 203 => 'Non-Authoritative Information', 204 => 'No Content', 205 => 'Reset Content', 206 => 'Partial Content', 207 => 'Multi-Status', 226 => 'IM Used', 300 => 'Multiple Choices', 301 => 'Moved Permanently', 302 => 'Found', 303 => 'See Other', 304 => 'Not Modified', 305 => 'Use Proxy', 306 => 'Reserved', 307 => 'Temporary Redirect', 400 => 'Bad Request', 401 => 'Unauthorized', 402 => 'Payment Required', 403 => 'Forbidden', 404 => 'Not Found', 405 => 'Method Not Allowed', 406 => 'Not Acceptable', 407 => 'Proxy Authentication Required', 408 => 'Request Timeout', 409 => 'Conflict', 410 => 'Gone', 411 => 'Length Required', 412 => 'Precondition Failed', 413 => 'Request Entity Too Large', 414 => 'Request-URI Too Long', 415 => 'Unsupported Media Type', 416 => 'Requested Range Not Satisfiable', 417 => 'Expectation Failed', 422 => 'Unprocessable Entity', 423 => 'Locked', 424 => 'Failed Dependency', 426 => 'Upgrade Required', 500 => 'Internal Server Error', 501 => 'Not Implemented', 502 => 'Bad Gateway', 503 => 'Service Unavailable', 504 => 'Gateway Timeout', 505 => 'HTTP Version Not Supported', 506 => 'Variant Also Negotiates', 507 => 'Insufficient Storage', 510 => 'Not Extended', }   Every standard HTTP code mapped to the appropriate message. Generated with:
  curl -s http://www.iana.org/assignments/http-status-codes |      #     ruby -ane 'm = /^(\d{3}) +(\S[^\[(]+)/.match($_) and
               puts "      #{m[1]}  => \x27#{m[2].strip}x27,"'
STATUS_WITH_NO_ENTITY_BODY = Set.new((100..199).to_a << 204 << 304)   Responses with HTTP status codes that should not have an entity body
SYMBOL_TO_STATUS_CODE = HTTP_STATUS_CODES.inject({}) { |hash, (code, message)| hash[message.downcase.gsub(/\s|-/, '_').to_sym] = code

Public Instance methods

Escape ampersands, brackets and quotes to their HTML/XML entities.

Modified version of stdlib time.rb Time#rfc2822 to use ’%d-%b-%Y’ instead of ’% %b %Y’. It assumes that the time is in GMT to comply to the RFC 2109.

NOTE: I‘m not sure the RFC says it requires GMT, but is ambigous enough that I‘m certain someone implemented only that option. Do not use %a and %b from Time.strptime, it would use localized names for weekday and month.

Constant time string comparison.

[Validate]