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const.rb
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const.rb
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#encoding: utf-8
# frozen_string_literal: true
module Puma
class UnsupportedOption < RuntimeError
end
# Every standard HTTP code mapped to the appropriate message. These are
# used so frequently that they are placed directly in Puma for easy
# access rather than Puma::Const itself.
# Every standard HTTP code mapped to the appropriate message.
# Generated with:
# curl -s https://www.iana.org/assignments/http-status-codes/http-status-codes-1.csv | \
# ruby -ne 'm = /^(\d{3}),(?!Unassigned|\(Unused\))([^,]+)/.match($_) and \
# puts "#{m[1]} => \x27#{m[2].strip}\x27,"'
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',
208 => 'Already Reported',
226 => 'IM Used',
300 => 'Multiple Choices',
301 => 'Moved Permanently',
302 => 'Found',
303 => 'See Other',
304 => 'Not Modified',
305 => 'Use Proxy',
307 => 'Temporary Redirect',
308 => 'Permanent 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 => 'Payload Too Large',
414 => 'URI Too Long',
415 => 'Unsupported Media Type',
416 => 'Range Not Satisfiable',
417 => 'Expectation Failed',
418 => 'I\'m A Teapot',
421 => 'Misdirected Request',
422 => 'Unprocessable Entity',
423 => 'Locked',
424 => 'Failed Dependency',
426 => 'Upgrade Required',
428 => 'Precondition Required',
429 => 'Too Many Requests',
431 => 'Request Header Fields Too Large',
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',
507 => 'Insufficient Storage',
508 => 'Loop Detected',
510 => 'Not Extended',
511 => 'Network Authentication Required'
}.freeze
# For some HTTP status codes the client only expects headers.
#
STATUS_WITH_NO_ENTITY_BODY = {
204 => true,
205 => true,
304 => true
}.freeze
# Frequently used constants when constructing requests or responses. Many times
# the constant just refers to a string with the same contents. Using these constants
# gave about a 3% to 10% performance improvement over using the strings directly.
#
# The constants are frozen because Hash#[]= when called with a String key dups
# the String UNLESS the String is frozen. This saves us therefore 2 object
# allocations when creating the env hash later.
#
# While Puma does try to emulate the CGI/1.2 protocol, it does not use the REMOTE_IDENT,
# REMOTE_USER, or REMOTE_HOST parameters since those are either a security problem or
# too taxing on performance.
module Const
PUMA_VERSION = VERSION = "6.0.1"
CODE_NAME = "Sunflower"
PUMA_SERVER_STRING = ["puma", PUMA_VERSION, CODE_NAME].join(" ").freeze
FAST_TRACK_KA_TIMEOUT = 0.2
# How long to wait when getting some write blocking on the socket when
# sending data back
WRITE_TIMEOUT = 10
# The original URI requested by the client.
REQUEST_URI= "REQUEST_URI"
REQUEST_PATH = "REQUEST_PATH"
QUERY_STRING = "QUERY_STRING"
CONTENT_LENGTH = "CONTENT_LENGTH"
PATH_INFO = "PATH_INFO"
PUMA_TMP_BASE = "puma"
ERROR_RESPONSE = {
# Indicate that we couldn't parse the request
400 => "HTTP/1.1 400 Bad Request\r\n\r\n",
# The standard empty 404 response for bad requests. Use Error4040Handler for custom stuff.
404 => "HTTP/1.1 404 Not Found\r\nConnection: close\r\nServer: Puma #{PUMA_VERSION}\r\n\r\nNOT FOUND",
# The standard empty 408 response for requests that timed out.
408 => "HTTP/1.1 408 Request Timeout\r\nConnection: close\r\nServer: Puma #{PUMA_VERSION}\r\n\r\n",
# Indicate that there was an internal error, obviously.
500 => "HTTP/1.1 500 Internal Server Error\r\n\r\n",
# Incorrect or invalid header value
501 => "HTTP/1.1 501 Not Implemented\r\n\r\n",
# A common header for indicating the server is too busy. Not used yet.
503 => "HTTP/1.1 503 Service Unavailable\r\n\r\nBUSY"
}.freeze
# The basic max request size we'll try to read.
CHUNK_SIZE = 16 * 1024
# This is the maximum header that is allowed before a client is booted. The parser detects
# this, but we'd also like to do this as well.
MAX_HEADER = 1024 * (80 + 32)
# Maximum request body size before it is moved out of memory and into a tempfile for reading.
MAX_BODY = MAX_HEADER
REQUEST_METHOD = "REQUEST_METHOD"
HEAD = "HEAD"
SUPPORTED_HTTP_METHODS = %w[HEAD GET POST PUT DELETE OPTIONS TRACE PATCH].freeze
# ETag is based on the apache standard of hex mtime-size-inode (inode is 0 on win32)
LINE_END = "\r\n"
REMOTE_ADDR = "REMOTE_ADDR"
HTTP_X_FORWARDED_FOR = "HTTP_X_FORWARDED_FOR"
HTTP_X_FORWARDED_SSL = "HTTP_X_FORWARDED_SSL"
HTTP_X_FORWARDED_SCHEME = "HTTP_X_FORWARDED_SCHEME"
HTTP_X_FORWARDED_PROTO = "HTTP_X_FORWARDED_PROTO"
SERVER_NAME = "SERVER_NAME"
SERVER_PORT = "SERVER_PORT"
HTTP_HOST = "HTTP_HOST"
PORT_80 = "80"
PORT_443 = "443"
LOCALHOST = "localhost"
LOCALHOST_IPV4 = "127.0.0.1"
LOCALHOST_IPV6 = "::1"
UNSPECIFIED_IPV4 = "0.0.0.0"
UNSPECIFIED_IPV6 = "::"
SERVER_PROTOCOL = "SERVER_PROTOCOL"
HTTP_11 = "HTTP/1.1"
SERVER_SOFTWARE = "SERVER_SOFTWARE"
GATEWAY_INTERFACE = "GATEWAY_INTERFACE"
CGI_VER = "CGI/1.2"
STOP_COMMAND = "?"
HALT_COMMAND = "!"
RESTART_COMMAND = "R"
RACK_INPUT = "rack.input"
RACK_URL_SCHEME = "rack.url_scheme"
RACK_AFTER_REPLY = "rack.after_reply"
PUMA_SOCKET = "puma.socket"
PUMA_CONFIG = "puma.config"
PUMA_PEERCERT = "puma.peercert"
HTTP = "http"
HTTPS = "https"
HTTPS_KEY = "HTTPS"
HTTP_VERSION = "HTTP_VERSION"
HTTP_CONNECTION = "HTTP_CONNECTION"
HTTP_EXPECT = "HTTP_EXPECT"
CONTINUE = "100-continue"
HTTP_11_100 = "HTTP/1.1 100 Continue\r\n\r\n"
HTTP_11_200 = "HTTP/1.1 200 OK\r\n"
HTTP_10_200 = "HTTP/1.0 200 OK\r\n"
CLOSE = "close"
KEEP_ALIVE = "keep-alive"
CONTENT_LENGTH2 = "content-length"
CONTENT_LENGTH_S = "Content-Length: "
TRANSFER_ENCODING = "transfer-encoding"
TRANSFER_ENCODING2 = "HTTP_TRANSFER_ENCODING"
CONNECTION_CLOSE = "Connection: close\r\n"
CONNECTION_KEEP_ALIVE = "Connection: Keep-Alive\r\n"
TRANSFER_ENCODING_CHUNKED = "Transfer-Encoding: chunked\r\n"
CLOSE_CHUNKED = "0\r\n\r\n"
CHUNKED = "chunked"
COLON = ": "
NEWLINE = "\n"
HIJACK_P = "rack.hijack?"
HIJACK = "rack.hijack"
HIJACK_IO = "rack.hijack_io"
EARLY_HINTS = "rack.early_hints"
# Illegal character in the key or value of response header
DQUOTE = "\""
HTTP_HEADER_DELIMITER = Regexp.escape("(),/:;<=>?@[]{}\\").freeze
ILLEGAL_HEADER_KEY_REGEX = /[\x00-\x20#{DQUOTE}#{HTTP_HEADER_DELIMITER}]/.freeze
# header values can contain HTAB?
ILLEGAL_HEADER_VALUE_REGEX = /[\x00-\x08\x0A-\x1F]/.freeze
# Banned keys of response header
BANNED_HEADER_KEY = /\A(rack\.|status\z)/.freeze
PROXY_PROTOCOL_V1_REGEX = /^PROXY (?:TCP4|TCP6|UNKNOWN) ([^\r]+)\r\n/.freeze
end
end