utils.rb

Path: lib/rack/utils.rb
Last Update: Fri Jan 06 06:33:31 +0000 2012

Required files

fileutils   set   tempfile   rack/multipart   rack/backports/uri/common   uri/common  

Methods

Constants

ESCAPE_HTML = { "&" => "&amp;", "<" => "&lt;", ">" => "&gt;", "'" => "&#x27;", '"' => "&quot;", "/" => "&#x2F;"
ESCAPE_HTML_PATTERN = Regexp.union(*ESCAPE_HTML.keys)
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 = Hash[*HTTP_STATUS_CODES.map { |code, message| [message.downcase.gsub(/\s|-/, '_').to_sym, code]
Multipart = Rack::Multipart

Public Instance methods

Parses the "Range:" header, if present, into an array of Range objects. Returns nil if the header is missing or syntactically invalid. Returns an empty array if none of the ranges are satisfiable.

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.

[Validate]