Module: Mongrel::Const

Defined in:
lib/mongrel/const.rb

Overview

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. Symbols did not really improve things much compared to constants.

While Mongrel 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.

Constant Summary collapse

DATE =
"Date".freeze
PATH_INFO =

This is the part of the path after the SCRIPT_NAME. URIClassifier will determine this.

"PATH_INFO".freeze
SCRIPT_NAME =

This is the initial part that your handler is identified as by URIClassifier.

"SCRIPT_NAME".freeze
REQUEST_URI =

The original URI requested by the client. Passed to URIClassifier to build PATH_INFO and SCRIPT_NAME.

'REQUEST_URI'.freeze
REQUEST_PATH =
'REQUEST_PATH'.freeze
MONGREL_VERSION =
VERSION = "1.2.0.beta.1".freeze
MONGREL_TMP_BASE =
"mongrel".freeze
ERROR_404_RESPONSE =

The standard empty 404 response for bad requests. Use Error4040Handler for custom stuff.

"HTTP/1.1 404 Not Found\r\nConnection: close\r\nServer: Mongrel #{MONGREL_VERSION}\r\n\r\nNOT FOUND".freeze
CONTENT_LENGTH =
"CONTENT_LENGTH".freeze
ERROR_503_RESPONSE =

A common header for indicating the server is too busy. Not used yet.

"HTTP/1.1 503 Service Unavailable\r\n\r\nBUSY".freeze
CHUNK_SIZE =

The basic max request size we'll try to read.

(16 * 1024)
MAX_HEADER =

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.

1024 * (80 + 32)
MAX_BODY =

Maximum request body size before it is moved out of memory and into a tempfile for reading.

MAX_HEADER
STATUS_FORMAT =

A frozen format for this is about 15% faster

"HTTP/1.1 %d %s\r\nConnection: close\r\n".freeze
CONTENT_TYPE =
"Content-Type".freeze
LAST_MODIFIED =
"Last-Modified".freeze
ETAG =
"ETag".freeze
SLASH =
"/".freeze
REQUEST_METHOD =
"REQUEST_METHOD".freeze
GET =
"GET".freeze
HEAD =
"HEAD".freeze
ETAG_FORMAT =

ETag is based on the apache standard of hex mtime-size-inode (inode is 0 on win32)

"\"%x-%x-%x\"".freeze
HEADER_FORMAT =
"%s: %s\r\n".freeze
LINE_END =
"\r\n".freeze
REMOTE_ADDR =
"REMOTE_ADDR".freeze
HTTP_X_FORWARDED_FOR =
"HTTP_X_FORWARDED_FOR".freeze
HTTP_IF_MODIFIED_SINCE =
"HTTP_IF_MODIFIED_SINCE".freeze
HTTP_IF_NONE_MATCH =
"HTTP_IF_NONE_MATCH".freeze
REDIRECT =
"HTTP/1.1 302 Found\r\nLocation: %s\r\nConnection: close\r\n\r\n".freeze
HOST =
"HOST".freeze