class Tilia::Dav::Auth::Backend::AbstractBasic

HTTP Basic authentication backend class

This class can be used by authentication objects wishing to use HTTP Basic Most of the digest logic is handled, implementors just need to worry about the validateUserPass method.

Attributes

realm[W]

Sets the authentication realm for this backend.

@param string realm @return void

Public Class Methods

new(*args) click to toggle source

TODO: document

Calls superclass method
# File lib/tilia/dav/auth/backend/abstract_basic.rb, line 111
def initialize *args
  super
  @realm = 'tilia/dav'
  @principal_prefix = 'principals/'
end

Public Instance Methods

challenge(request, response) click to toggle source

This method is called when a user could not be authenticated, and authentication was required for the current request.

This gives you the opportunity to set authentication headers. The 401 status code will already be set.

In this case of Basic Auth, this would for example mean that the following header needs to be set:

response.add_header('WWW-Authenticate', 'Basic realm=SabreDAV')

Keep in mind that in the case of multiple authentication backends, other WWW-Authenticate headers may already have been set, and you'll want to append your own WWW-Authenticate header instead of overwriting the existing one.

@param RequestInterface request @param ResponseInterface response @return void

# File lib/tilia/dav/auth/backend/abstract_basic.rb, line 105
def challenge(request, response)
  auth = Http::Auth::Basic.new(@realm, request, response)
  auth.require_login
end
check(request, response) click to toggle source

When this method is called, the backend must check if authentication was successful.

The returned value must be one of the following

true, “principals/username”
false, “reason for failure”

If authentication was successful, it's expected that the authentication backend returns a so-called principal url.

Examples of a principal url:

principals/admin principals/user1 principals/users/joe principals/uid/123457

If you don't use WebDAV ACL (RFC3744) we recommend that you simply return a string such as:

principals/users/

@param RequestInterface request @param ResponseInterface response @return array

# File lib/tilia/dav/auth/backend/abstract_basic.rb, line 73
def check(request, response)
  auth = Http::Auth::Basic.new(@realm, request, response)

  userpass = auth.credentials
  if userpass.blank?
    return [false, "No 'Authorization: Basic' header found. Either the client didn't send one, or the server is misconfigured"]
  end
  unless validate_user_pass(userpass[0], userpass[1])
    return [false, 'Username or password was incorrect']
  end
  [true, @principal_prefix + userpass[0]]
end

Protected Instance Methods

validate_user_pass(_username, _password) click to toggle source

Validates a username and password

This method should return true or false depending on if login succeeded.

@param string username @param string password @return bool

# File lib/tilia/dav/auth/backend/abstract_basic.rb, line 36
def validate_user_pass(_username, _password)
end