Class: Rack::Lint

Relationships & Source Files
Namespace Children
Classes: `Wrapper`
Exceptions: `LintError`
Inherits:	Object
Defined in:	lib/rack/lint.rb

Overview

Validates your application and the requests and responses according to the ::Rack spec. See SPEC.rdoc for details.

Constant Summary

ALLOWED_SCHEMES = Internal use only
# File 'lib/rack/lint.rb', line 21
```
%w(https http wss ws).freeze
```

HOST_PATTERN = private Internal use only

Match a host name, according to RFC3986. Copied from URI::RFC3986_Parser::HOST because older Ruby versions (< 3.3) don’t expose it.

# File 'lib/rack/lint.rb', line 29

/
  (?<IP-literal>\[(?:
      (?<IPv6address>
        (?:\h{1,4}:){6}
        (?<ls32>\h{1,4}:\h{1,4}
        | (?<IPv4address>(?<dec-octet>[1-9]\d|1\d{2}|2[0-4]\d|25[0-5]|\d)
            \.\g<dec-octet>\.\g<dec-octet>\.\g<dec-octet>)
        )
      | ::(?:\h{1,4}:){5}\g<ls32>
      | \h{1,4}?::(?:\h{1,4}:){4}\g<ls32>
      | (?:(?:\h{1,4}:)?\h{1,4})?::(?:\h{1,4}:){3}\g<ls32>
      | (?:(?:\h{1,4}:){,2}\h{1,4})?::(?:\h{1,4}:){2}\g<ls32>
      | (?:(?:\h{1,4}:){,3}\h{1,4})?::\h{1,4}:\g<ls32>
      | (?:(?:\h{1,4}:){,4}\h{1,4})?::\g<ls32>
      | (?:(?:\h{1,4}:){,5}\h{1,4})?::\h{1,4}
      | (?:(?:\h{1,4}:){,6}\h{1,4})?::
      )
    | (?<IPvFuture>v\h\.[!$&-.0-9:;=A-Z_a-z~])
    )\])
| \g<IPv4address>
| (?<reg-name>(?:%\h\h|[!$&-.0-9;=A-Z_a-z~])*+)
/x.freeze

HTTP_HOST_PATTERN = private Internal use only
# File 'lib/rack/lint.rb', line 52
```
/\A#{HOST_PATTERN}(:\d*+)?\z/.freeze
```
REQUEST_PATH_ABSOLUTE_FORM = Internal use only
# File 'lib/rack/lint.rb', line 24
```
/\A#{Utils::URI_PARSER.make_regexp}\z/
```
REQUEST_PATH_ASTERISK_FORM = Internal use only
# File 'lib/rack/lint.rb', line 26
```
'*'
```
REQUEST_PATH_AUTHORITY_FORM = Internal use only
# File 'lib/rack/lint.rb', line 25
```
/\A[^\/:]:\d\z/
```
REQUEST_PATH_ORIGIN_FORM = Internal use only
# File 'lib/rack/lint.rb', line 23
```
/\A\/[^#]*\z/
```
SERVER_NAME_PATTERN = private Internal use only
# File 'lib/rack/lint.rb', line 51
```
/\A#{HOST_PATTERN}\z/.freeze
```

Class Method Summary

.new(app) ⇒ Lint constructor Internal use only

N.B.

Instance Method Summary

#call(env = nil)

Invoke the application, validating the request and response according to the ::Rack spec.

Constructor Details

.new(app) ⇒ `Lint`

This method is for internal use only.

N.B. The empty ## comments creates paragraphs in the output. A trailing “" is used to escape the newline character, which combines the comments into a single paragraph.

Rack Specification

This specification aims to formalize the ::Rack protocol. You can (and should) use Lint to enforce it. When you develop middleware, be sure to test with Lint to catch possible violations of this specification.

The Application

A Rack application is a Ruby object that responds to #call. \

Raises:

(LintError)

[ GitHub ]

# File 'lib/rack/lint.rb', line 65


def initialize(app)
  raise LintError, "app must respond to call" unless app.respond_to?(:call)

  @app = app
end

Instance Method Details

#call(env = nil)

Invoke the application, validating the request and response according to the ::Rack spec.