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1 | <?php |
2 | /** |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation; either version 2 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
16 | * http://www.gnu.org/copyleft/gpl.html |
17 | * |
18 | * @file |
19 | */ |
20 | |
21 | namespace MediaWiki\Exception; |
22 | |
23 | use LoginHelper; |
24 | use MediaWiki\Context\RequestContext; |
25 | use MediaWiki\SpecialPage\SpecialPage; |
26 | |
27 | /** |
28 | * Redirect a user to the login page or account creation page |
29 | * |
30 | * This is essentially an ErrorPageError exception which by default uses the |
31 | * 'exception-nologin' as a title and 'exception-nologin-text' for the message. |
32 | * |
33 | * When the user is a temporary account, the redirect will point to the Special:CreateAccount page unless |
34 | * specifically set not to. In all other cases, the redirect is to the Special:UserLogin page. |
35 | * |
36 | * The message key for the reason will be modified to include '-for-temp-user' when the user is logged |
37 | * in to a temporary account and this message key exists (i.e. defined and not empty). |
38 | * |
39 | * @note In order for this exception to redirect, the error message passed to the |
40 | * constructor has to be explicitly added to LoginHelper::validErrorMessages or with |
41 | * the LoginFormValidErrorMessages hook. Otherwise, the user will just be shown the message |
42 | * rather than redirected. |
43 | * |
44 | * @par Example: |
45 | * @code |
46 | * if ( $user->isAnon() ) { |
47 | * throw new UserNotLoggedIn(); |
48 | * } |
49 | * @endcode |
50 | * |
51 | * Note the parameter order differs from ErrorPageError, this allows you to |
52 | * simply specify a reason without overriding the default title. |
53 | * |
54 | * @par Example: |
55 | * @code |
56 | * if ( $user->isAnon() ) { |
57 | * throw new UserNotLoggedIn( 'action-require-loggedin' ); |
58 | * } |
59 | * @endcode |
60 | * |
61 | * You can use {@link SpecialPage::requireLogin} and {@link SpecialPage::requireNamedUser} to throw this |
62 | * exception when the user is an anon user or not named respectively. |
63 | * |
64 | * @newable |
65 | * @see T39627 |
66 | * @since 1.20 |
67 | * @ingroup Exception |
68 | */ |
69 | class UserNotLoggedIn extends ErrorPageError { |
70 | |
71 | private bool $alwaysRedirectToLoginPage; |
72 | |
73 | /** |
74 | * @stable to call |
75 | * |
76 | * @note The value of the $reasonMsg parameter must be set with the LoginFormValidErrorMessages |
77 | * hook if you want the user to be automatically redirected to the login form. |
78 | * |
79 | * @param string $reasonMsg A message key containing the reason for the error. '-for-temp-user' will be |
80 | * appended to the end of the message key if the user is a temporary account and the redirect is |
81 | * to the Special:CreateAccount page. The modification is skipped if the message key does not |
82 | * exist. |
83 | * Optional, default: 'exception-nologin-text' |
84 | * @param string $titleMsg A message key to set the page title. |
85 | * Optional, default: 'exception-nologin' |
86 | * @param array $params Parameters to wfMessage() for $reasonMsg and $tempUserReasonMsg |
87 | * Optional, default: [] |
88 | * @param bool $alwaysRedirectToLoginPage Whether we should always redirect to the login page, even if the |
89 | * user is a temporary account. If false (the default), the redirect will be to Special:CreateAccount |
90 | * when the user is logged in to a temporary account. |
91 | */ |
92 | public function __construct( |
93 | $reasonMsg = 'exception-nologin-text', |
94 | $titleMsg = 'exception-nologin', |
95 | $params = [], |
96 | bool $alwaysRedirectToLoginPage = false |
97 | ) { |
98 | $context = RequestContext::getMain(); |
99 | // Replace the reason message for one that describes creating account when the user is a temporary account |
100 | // when such a custom message exists (T358586). |
101 | if ( $context->getUser()->isTemp() && !$alwaysRedirectToLoginPage ) { |
102 | // For grep to find usages: exception-nologin-text-for-temp-user |
103 | $tempUserReasonMsg = $reasonMsg . '-for-temp-user'; |
104 | if ( $context->msg( $tempUserReasonMsg )->exists() ) { |
105 | $reasonMsg = $tempUserReasonMsg; |
106 | } |
107 | } |
108 | parent::__construct( $titleMsg, $reasonMsg, $params ); |
109 | $this->alwaysRedirectToLoginPage = $alwaysRedirectToLoginPage; |
110 | } |
111 | |
112 | /** |
113 | * Redirect to Special:Userlogin or Special:CreateAccount if the specified message is compatible. Otherwise, |
114 | * show an error page as usual. |
115 | * @param int $action |
116 | */ |
117 | public function report( $action = self::SEND_OUTPUT ) { |
118 | // If an unsupported message is used, don't try redirecting to Special:Userlogin, |
119 | // since the message may not be compatible. |
120 | if ( !in_array( $this->msg, LoginHelper::getValidErrorMessages() ) ) { |
121 | parent::report( $action ); |
122 | return; |
123 | } |
124 | |
125 | $context = RequestContext::getMain(); |
126 | |
127 | // Message is valid. Redirect to Special:Userlogin, unless the user is a temporary account in which case |
128 | // redirect to Special:CreateAccount (T358586). |
129 | $specialPageName = 'Userlogin'; |
130 | if ( $context->getUser()->isTemp() && !$this->alwaysRedirectToLoginPage ) { |
131 | $specialPageName = 'CreateAccount'; |
132 | } |
133 | |
134 | $output = $context->getOutput(); |
135 | $query = $context->getRequest()->getQueryValues(); |
136 | // Title will be overridden by returnto |
137 | unset( $query['title'] ); |
138 | // Redirect to Special:Userlogin |
139 | $output->redirect( SpecialPage::getTitleFor( $specialPageName )->getFullURL( [ |
140 | // Return to this page when the user logs in |
141 | 'returnto' => $context->getTitle()->getFullText(), |
142 | 'returntoquery' => wfArrayToCgi( $query ), |
143 | 'warning' => $this->msg, |
144 | // Forward the 'display' parameter if provided |
145 | 'display' => $query['display'] ?? null, |
146 | ] ) ); |
147 | |
148 | if ( $action === self::SEND_OUTPUT ) { |
149 | $output->output(); |
150 | } |
151 | } |
152 | } |
153 | |
154 | /** @deprecated class alias since 1.44 */ |
155 | class_alias( UserNotLoggedIn::class, 'UserNotLoggedIn' ); |