/usr/share/perl5/Mojolicious/Plugin/Authentication.pm is in libmojolicious-plugin-authentication-perl 1.26-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 | package Mojolicious::Plugin::Authentication;
{
$Mojolicious::Plugin::Authentication::VERSION = '1.26';
}
use Mojo::Base 'Mojolicious::Plugin';
sub register {
my ($self, $app, $args) = @_;
$args ||= {};
die __PACKAGE__, ": missing 'load_user' subroutine ref in parameters\n"
unless $args->{load_user} && ref($args->{load_user}) eq 'CODE';
die __PACKAGE__, ": missing 'validate_user' subroutine ref in parameters\n"
unless $args->{validate_user} && ref($args->{validate_user}) eq 'CODE';
if(defined($args->{lazy})) {
warn __PACKAGE__, ': the "lazy" option is deprecated, use "autoload_user" instead', "\n";
$args->{autoload_user} = delete($args->{lazy});
}
my $autoload_user = defined($args->{autoload_user}) ? $args->{autoload_user} : 0;
my $session_key = $args->{session_key} || 'auth_data';
my $our_stash_key = $args->{stash_key} || '__authentication__';
my $load_user_cb = $args->{load_user};
my $validate_user_cb = $args->{validate_user};
my $current_user_fn = $args->{current_user_fn} || 'current_user';
# Unconditionally load the user based on uid in session
my $user_loader_sub = sub {
my $c = shift;
if (my $uid = $c->session($session_key)) {
my $user = $load_user_cb->($c, $uid);
if ($user) {
$c->stash($our_stash_key => { user => $user });
}
else {
# cache result that user does not exist
$c->stash($our_stash_key => { no_user => 1 });
}
}
};
# Fetch the current user object from the stash - loading it if not already loaded
my $user_stash_extractor_sub = sub {
my $c = shift;
if ( !(
defined($c->stash($our_stash_key))
&& ($c->stash($our_stash_key)->{no_user}
|| defined($c->stash($our_stash_key)->{user}))
)
)
{
$user_loader_sub->($c);
}
my $user_def = defined($c->stash($our_stash_key))
&& defined($c->stash($our_stash_key)->{user});
return $user_def ? $c->stash($our_stash_key)->{user} : undef;
};
$app->hook(before_dispatch => $user_loader_sub) if($autoload_user);
$app->routes->add_condition(authenticated => sub {
my ($r, $c, $captures, $required) = @_;
return (!$required || $c->is_user_authenticated) ? 1 : 0;
});
$app->routes->add_condition(signed => sub {
my ($r, $c, $captures, $required) = @_;
return (!$required || $c->signature_exists) ? 1 : 0;
});
# deprecation handling
$app->helper(user_exists => sub {
warn __PACKAGE__, ': the "user_exists" helper is deprecated, use "is_user_authenticated" instead', "\n";
return shift->is_user_authenticated(@_);
});
$app->helper(user => sub {
warn __PACKAGE__, ': the "user" helper is deprecated, use "', $current_user_fn, '" instead', "\n";
return shift->$current_user_fn(@_);
});
my $current_user = sub {
my $c = shift;
return $user_stash_extractor_sub->($c);
};
$app->helper(reload_user => sub {
my $c = shift;
# Clear stash to force a reload of the user object
delete $c->stash->{$our_stash_key};
return $current_user->($c);
});
$app->helper(signature_exists => sub {
my $c = shift;
return $c->session($session_key) ? 1 : 0;
});
$app->helper(is_user_authenticated => sub {
my $c = shift;
return defined($current_user->($c)) ? 1 : 0;
});
$app->helper("$current_user_fn" => $current_user);
$app->helper(logout => sub {
my $c = shift;
delete $c->stash->{$our_stash_key};
delete $c->session->{$session_key};
});
$app->helper(authenticate => sub {
my ($c, $user, $pass, $extradata) = @_;
$extradata ||= {};
# if extradata contains "auto_validate", assume the passed username is in fact valid, and
# auto_validate contains the uid; used for oAuth and other stuff that does not work with
# usernames and passwords.
if(defined($extradata->{auto_validate})) {
$c->session($session_key => $extradata->{auto_validate});
delete $c->stash->{$our_stash_key};
return 1 if defined( $current_user->($c) );
} elsif (my $uid = $validate_user_cb->($c, $user, $pass, $extradata)) {
$c->session($session_key => $uid);
# Clear stash to force reload of any already loaded user object
delete $c->stash->{$our_stash_key};
return 1 if defined( $current_user->($c) );
}
return undef;
});
}
1;
__END__
=head1 NAME
Mojolicious::Plugin::Authentication - A plugin to make authentication a bit easier
=head1 VERSION
version 1.26
=head1 SYNOPSIS
use Mojolicious::Plugin::Authentication
$self->plugin('authentication' => {
'autoload_user' => 1,
'session_key' => 'wickedapp',
'load_user' => sub { ... },
'validate_user' => sub { ... },
'current_user_fn' => 'user', # compatibility with old code
});
if ($self->authenticate('username', 'password', { optional => 'extra data stuff' })) {
...
}
=head1 METHODS
=head2 authenticate($username, $password, $extra_data_hashref)
Authenticate will use the supplied C<load_user> and C<validate_user> subroutine refs to see whether a user exists with the given username and password, and will set up the session accordingly. Returns true when the user has been successfully authenticated, false otherwise. You can pass additional data along in the extra_data hashref, it will be passed to your C<validate_user> subroutine as-is. If the extra data hash contains a key 'auto_validate', the value of that key will be used as the UID, and authenticate will not call your validate_user callback; this can be used when working with oAuth tokens or other authentication mechnisms that do not use a local username and password form.
=head2 is_user_authenticated
Returns true if current_user() returns some valid object, false otherwise.
=head2 current_user
Returns the user object as it was returned from the supplied C<load_user> subroutine ref.
=head2 reload_user
Flushes the current user object and then returns user().
=head2 signature_exists
Returns true if uid signature exist on the client side (in cookies), false otherwise.
Warning: non-secure check! Use this method only for a "fast & dirty" lookup to see if the client has the proper cookies. May be helpful in some cases (for example - in counting 'guest'/'logged users' or for additional non-confidential information for 'logged users' but not for 'guest').
=head2 logout
Removes the session data for authentication, and effectively logs a user out.
=head1 CONFIGURATION
The following options can be set for the plugin:
=over 4
=item load_user (REQUIRED) A coderef for user loading (see L</"USER LOADING">)
=item validate_user (REQUIRED) A coderef for user validation (see L</"USER VALIDATION">)
=item session_key (optional) The name of the session key
=item autoload_user (optional) Turn on/off automatic loading of user data - user data can be loaded only if it be used. May reduce site latency in some cases.
=item current_user_fn (optional) Set the name for the current_user() helper function
=back
In order to set the session expiry time, use the following in your startup routine:
$app->plugin('authentication', { ... });
$app->sessions->default_expiration(86400); # set expiry to 1 day
$app->sessions->default_expiration(3600); # set expiry to 1 hour
=head1 USER LOADING
The coderef you pass to the load_user configuration key has the following signature:
sub {
my ($app, $uid) = @_;
...
return $user;
}
The uid is the value that was originally returned from the C<validate_user> coderef. You must return either a user object (it can be a hashref, arrayref, or a blessed object) or undef.
=head1 USER VALIDATION
User validation is what happens when we need to authenticate someone. The coderef you pass to the C<validate_user> configuration key has the following signature:
sub {
my ($app, $username, $password, $extradata) = @_;
...
return $uid;
}
You must return either a user id or undef. The user id can be numerical or a string. Do not return hashrefs, arrayrefs or objects, since the behaviour of this plugin could get a little bit on the odd side of weird if you do that.
=head1 EXAMPLES
For a code example using this, see the F<t/01-functional.t> and F<t/02-functional_lazy.t> tests, it uses L<Mojolicious::Lite> and this plugin.
=head1 ROUTING VIA CONDITION
This plugin also exports a routing condition you can use in order to limit access to certain documents to only authenticated users.
$r->route('/foo')->over(authenticated => 1)->to('mycontroller#foo');
my $authenticated_only = $r->route('/members')->over(authenticated => 1)->to('members#index');
$authenticated_only->route('online')->to('members#online');
If someone is not authenticated, these routes will not be considered by the dispatcher and unless you have set up a catch-all route, a 404 Not Found will be generated instead.
And another condition for fast and unsecured checking for users, having a signature (without validating it). This method just checks client cookies for uid data existing.
$r->route('/foo')->over(signed => 1)->to('mycontroller#foo');
This behavior is similar to the "authenticated" condition.
=head1 ROUTING VIA CALLBACK
If you want to be able to send people to a login page, you will have to use the following:
my $members_only = $r->route('/members')->to(cb => sub {
my $self = shift;
$self->redirect_to('/login') and return 0 unless($self->is_user_authenticated);
return 1;
});
$members_only->route('online')->to('members#online');
Lazy and unsecured methods:
my $members_only = $r->route('/unimportant')->to(cb => sub {
my $self = shift;
$self->redirect_to('/login') and return 0 unless($self->signature_exists);
return 1;
});
$members_only->route('pages')->to('unimportant#pages');
=head1 ROUTING VIA BRIDGE
If you want to be able to send people to a login page, you will have to use the following:
my $auth_bridge = $r->bridge('/members')->to('auth#check');
$auth_bridge->route('/list')->to('members#list'); # only visible to logged in users
And in your Auth controller you would put:
sub check {
my $self = shift;
$self->redirect_to('/login') and return 0 unless($self->is_user_authenticated);
return 1;
});
Lazy and unsecured methods:
sub check {
my $self = shift;
$self->redirect_to('/login') and return 0 unless($self->signature_exists);
return 1;
});
=head1 SEE ALSO
L<Mojolicious::Sessions>, L<Mojocast 3: Authentication|http://mojocasts.com/e3#>
=head1 AUTHOR
Ben van Staveren, C<< <madcat at cpan.org> >>
=head1 BUGS / CONTRIBUTING
Please report any bugs or feature requests through the web interface at L<https://github.com/benvanstaveren/mojolicious-plugin-authentication/issues>.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Mojolicious::Plugin::Authentication
You can also look for information at:
=over 4
=item * AnnoCPAN: Annotated CPAN documentation
L<http://annocpan.org/dist/Mojolicious-Plugin-Authentication>
=item * CPAN Ratings
L<http://cpanratings.perl.org/d/Mojolicious-Plugin-Authentication>
=item * Search CPAN
L<http://search.cpan.org/dist/Mojolicious-Plugin-Authentication/>
=back
=head1 ACKNOWLEDGEMENTS
Andrew Parker
- For pointing out some bugs that crept in; a silent reminder not to code while sleepy
Mirko Westermeier (memowe)
- For doing some (much needed) code cleanup
Terrence Brannon (metaperl)
- Documentation patches
Karpich Dmitry (meettya)
- lazy_mode and signature_exists functionality, including a test and documentation
Ivo Welch
- For donating his first ever Mojolicious application that shows an example of how
to use this module
Ed W
- Adding the current_user() functionality, as well as some method renaming to make things
a bit more sane.
SailingYYC (Github)
- For reporting an issue with routing conditions; I really should not code while sleepy, brainfarts imminent!
=head1 LICENSE AND COPYRIGHT
Copyright 2011-2012 Ben van Staveren.
This program is free software; you can redistribute it and/or modify it
under the terms of either: the GNU General Public License as published
by the Free Software Foundation; or the Artistic License.
See http://dev.perl.org/licenses/ for more information.
=cut
|