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 / 
MKDoc-Auth-0.3
/ MKDoc::Auth::Plugin::Login

NAME

MKDoc::Auth::Plugin::Login

SUMMARY

This plugin lets a user login, logout, or login as somebody else. All in one!

When /.login.html is invoked, it computes a timestamp in the near future (+5s or something) and immediately redirects the user to /.login.html?<timestamp>.

When the first request to /.login.html?<timestamp> comes, the time is still less than <timestamp>. Hence the plugin sets HTTP headers which will cause the web browser to display a form to input user credentials.

  $stamp and time < $stamp and do {
      $::MKD_USER = undef;
      my $rsp = $self->response();
      $rsp->Status ("401 Authorization Required");
      $rsp->WWW_Authenticate ('Basic realm="MKDoc/Auth"');
  };

If the user chooses to click 'cancel', it immediately discards their user credentials and they are de-facto logged out.

If the user chooses to enter their username and password, it will trigger another request to /.login.html?<timestamp>, with the user credentials.

Except that by the time the user has entered his credentials, <timestamp> will be in the past, not in the future anymore. Hence the credentials will not be re-requested and the user will be logged in.

INHERITS FROM

MKDoc::Core::Plugin

API

$self->uri_hint();

Helps deciding what the URI of this plugin should be.

By default, returns 'signup.html'.

Can be overriden by setting the MKD__AUTH_LOGIN_URI_HINT environment variable or by subclassing.

$self->location();

Returns the PATH_INFO which will trigger this plugin.

$self->http_get();

If no timestamp is supplied, performs a redirect with a timestamp in the future.

If a timestamp is supplied and is in the future, request browser credentials.

If a timestamp is supplied and is in the past, do not request browser credentials.

$self->timestamp_amount();

Returns the amount of time in the future that should be used to construct the timestamp, in seconds.

If the time is too short, there is a risk that the user will never have a chance to log in since the credentials request will never be sent to the browser.

If the time is too long, there is a risk that the user will have the time to enter their credentials and click 'OK' before the timestamp expires. This means that the user will be re-prompted for his credentials, even if they were correct in the first place.

Defaults to 5. Can be overriden by setting the MKD__AUTH_LOGIN_TIMESTAMP environment variable or via subclassing. Must be a positive integer which represent the lapse in seconds.

$self->timestamp();

Returns the timestamp supplied as a parameter, if any.

TEMPLATE METHODS

self/user

Returns the current authenticated user, if any.