125 lines
4.2 KiB
PHP
125 lines
4.2 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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namespace MediaWiki\EditPage\Constraint;
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use MediaWiki\Content\Content;
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use StatusValue;
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/**
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* To simplify the logic in EditPage, this constraint may be created even if the section being
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* edited does not currently exist, in which case $section will be 'new' and this constraint
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* will just short-circuit to CONSTRAINT_PASSED since the checks are not applicable.
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*
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* This constraint will only be used if the editor is trying to edit an existing page; if there
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* is no content, then the user has lost access to the revision after it was loaded. (T301947)
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*
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* For an edit to an existing page but not with a new section, do not allow the user to post with
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* a summary that matches the automatic summary if
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* - the content has changed (to allow null edits without a summary, see T7365),
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* - the new content is not a redirect (since redirecting a page has an informative automatic
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* edit summary, see T9889), and
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* - the user has not explicitly chosen to allow the automatic summary to be used
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*
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* For most edits, the automatic summary is blank, so checking against the automatic summary means
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* checking that any summary was given.
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*
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* @since 1.36
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* @internal
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* @author DannyS712
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*/
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class ExistingSectionEditConstraint implements IEditConstraint {
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private string $section;
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private string $userSummary;
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private string $autoSummary;
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private bool $allowBlankSummary;
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private Content $newContent;
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private ?Content $originalContent;
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private string $result;
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/**
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* @param string $section
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* @param string $userSummary
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* @param string $autoSummary
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* @param bool $allowBlankSummary
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* @param Content $newContent
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* @param ?Content $originalContent
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*/
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public function __construct(
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string $section,
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string $userSummary,
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string $autoSummary,
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bool $allowBlankSummary,
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Content $newContent,
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?Content $originalContent
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) {
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$this->section = $section;
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$this->userSummary = $userSummary;
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$this->autoSummary = $autoSummary;
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$this->allowBlankSummary = $allowBlankSummary;
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$this->newContent = $newContent;
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$this->originalContent = $originalContent;
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}
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public function checkConstraint(): string {
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if ( $this->section === 'new' ) {
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// Constraint is not applicable
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$this->result = self::CONSTRAINT_PASSED;
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return self::CONSTRAINT_PASSED;
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}
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if ( $this->originalContent === null ) {
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// T301947: User loses access to revision after loading
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$this->result = self::CONSTRAINT_FAILED;
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return self::CONSTRAINT_FAILED;
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}
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if (
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!$this->allowBlankSummary &&
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!$this->newContent->equals( $this->originalContent ) &&
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!$this->newContent->isRedirect() &&
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md5( $this->userSummary ) === $this->autoSummary
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) {
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$this->result = self::CONSTRAINT_FAILED;
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} else {
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$this->result = self::CONSTRAINT_PASSED;
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}
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return $this->result;
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}
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public function getLegacyStatus(): StatusValue {
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$statusValue = StatusValue::newGood();
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if ( $this->result === self::CONSTRAINT_FAILED ) {
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if ( $this->originalContent === null ) {
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// T301947: User loses access to revision after loading
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// The error message, rev-deleted-text-permission, is not
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// really in use currently. It's added for completeness and in
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// case any code path wants to know the error.
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$statusValue->fatal( 'rev-deleted-text-permission' );
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$statusValue->value = self::AS_REVISION_WAS_DELETED;
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} else {
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$statusValue->fatal( 'missingsummary' );
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$statusValue->value = self::AS_SUMMARY_NEEDED;
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}
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}
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return $statusValue;
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}
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}
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