Module: Mongrel::Const

Module | Mongrel::Const
In: | lib/mongrel/const.rb lib/mongrel/const.rb

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.

### Constants

DATE | = | "Date".freeze
PATH_INFO | = | "PATH_INFO".freeze |  | This is the part of the path after the SCRIPT_NAME. URIClassifier will determine this.
SCRIPT_NAME | = | "SCRIPT_NAME".freeze |  | This is the initial part that your handler is identified as by URIClassifier.
REQUEST_URI | = | 'REQUEST_URI'.freeze |  | The original URI requested by the client. Passed to URIClassifier to build PATH_INFO and SCRIPT_NAME.
REQUEST_PATH | = | 'REQUEST_PATH'.freeze
MONGREL_VERSION | = | "1.1.5".freeze
MONGREL_TMP_BASE | = | "mongrel".freeze
ERROR_404_RESPONSE | = | "HTTP/1.1 404 Not Found\r\nConnection: close\r\nServer: Mongrel #{MONGREL_VERSION}\r\n\r\nNOT FOUND".freeze |  | The standard empty 404 response for bad requests. Use Error4040Handler for custom stuff.
CONTENT_LENGTH | = | "CONTENT_LENGTH".freeze
ERROR_503_RESPONSE | = | "HTTP/1.1 503 Service Unavailable\r\n\r\nBUSY".freeze |  | A common header for indicating the server is too busy. Not used yet.
CHUNK_SIZE | = | (16 * 1024) |  | The basic max request size we‘ll try to read.
MAX_HEADER | = | 1024 * (80 + 32) |  | 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_BODY | = | MAX_HEADER |  | Maximum request body size before it is moved out of memory and into a tempfile for reading.
STATUS_FORMAT | = | "HTTP/1.1 %d %s\r\nConnection: close\r\n".freeze |  | A frozen format for this is about 15% faster
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 | = | "\"%x-%x-%x\"".freeze |  | ETag is based on the apache standard of hex mtime-size-inode (inode is 0 on win32)
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
DATE | = | "Date".freeze
PATH_INFO | = | "PATH_INFO".freeze |  | This is the part of the path after the SCRIPT_NAME. URIClassifier will determine this.
SCRIPT_NAME | = | "SCRIPT_NAME".freeze |  | This is the initial part that your handler is identified as by URIClassifier.
REQUEST_URI | = | 'REQUEST_URI'.freeze |  | The original URI requested by the client. Passed to URIClassifier to build PATH_INFO and SCRIPT_NAME.
REQUEST_PATH | = | 'REQUEST_PATH'.freeze
MONGREL_VERSION | = | "1.1.5".freeze
MONGREL_TMP_BASE | = | "mongrel".freeze
ERROR_404_RESPONSE | = | "HTTP/1.1 404 Not Found\r\nConnection: close\r\nServer: Mongrel #{MONGREL_VERSION}\r\n\r\nNOT FOUND".freeze |  | The standard empty 404 response for bad requests. Use Error4040Handler for custom stuff.
CONTENT_LENGTH | = | "CONTENT_LENGTH".freeze
ERROR_503_RESPONSE | = | "HTTP/1.1 503 Service Unavailable\r\n\r\nBUSY".freeze |  | A common header for indicating the server is too busy. Not used yet.
CHUNK_SIZE | = | (16 * 1024) |  | The basic max request size we‘ll try to read.
MAX_HEADER | = | 1024 * (80 + 32) |  | 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_BODY | = | MAX_HEADER |  | Maximum request body size before it is moved out of memory and into a tempfile for reading.
STATUS_FORMAT | = | "HTTP/1.1 %d %s\r\nConnection: close\r\n".freeze |  | A frozen format for this is about 15% faster
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 | = | "\"%x-%x-%x\"".freeze |  | ETag is based on the apache standard of hex mtime-size-inode (inode is 0 on win32)
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

[Validate]