module Rack::App::Constants
  HTTP_STATUS_CODES = {
    100 => "Continue",
    101 => "Switching Protocols",
    102 => "Processing (WebDAV; RFC 2518)",
    200 => "OK",
    201 => "Created",
    202 => "Accepted",
    203 => "Non-Authoritative Information (since HTTP/1.1)",
    204 => "", # No Content
    205 => "", # Reset Content
    206 => "Partial Content (RFC 7233)",
    207 => "Multi-Status (WebDAV; RFC 4918)",
    208 => "Already Reported (WebDAV; RFC 5842)",
    226 => "IM Used (RFC 3229)",
    300 => "Multiple Choices",
    301 => "Moved Permanently",
    302 => "Found",
    303 => "See Other (since HTTP/1.1)",
    304 => "", # Not Modified (RFC 7232)
    305 => "Use Proxy (since HTTP/1.1)",
    306 => "Switch Proxy",
    307 => "Temporary Redirect (since HTTP/1.1)",
    308 => "Permanent Redirect (RFC 7538)",
    400 => "Bad Request",
    401 => "Unauthorized (RFC 7235)",
    402 => "Payment Required",
    403 => "Forbidden",
    404 => "Not Found",
    405 => "Method Not Allowed",
    406 => "Not Acceptable",
    407 => "Proxy Authentication Required (RFC 7235)",
    408 => "Request Timeout",
    409 => "Conflict",
    410 => "Gone",
    411 => "Length Required",
    412 => "Precondition Failed (RFC 7232)",
    413 => "Payload Too Large (RFC 7231)",
    414 => "URI Too Long (RFC 7231)",
    415 => "Unsupported Media Type",
    416 => "Range Not Satisfiable (RFC 7233)",
    417 => "Expectation Failed",
    418 => "I'm a teapot (RFC 2324)",
    421 => "Misdirected Request (RFC 7540)",
    422 => "Unprocessable Entity (WebDAV; RFC 4918)",
    423 => "Locked (WebDAV; RFC 4918)",
    424 => "Failed Dependency (WebDAV; RFC 4918)",
    426 => "Upgrade Required",
    428 => "Precondition Required (RFC 6585)",
    429 => "Too Many Requests (RFC 6585)",
    431 => "Request Header Fields Too Large (RFC 6585)",
    451 => "Unavailable For Legal Reasons",
    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 (RFC 2295)",
    507 => "Insufficient Storage (WebDAV; RFC 4918)",
    508 => "Loop Detected (WebDAV; RFC 5842)",
    510 => "Not Extended (RFC 2774)",
    511 => "Network Authentication Required (RFC 6585)",
  }.freeze
end