1 files changed, 145 insertions, 0 deletions
diff --git a/www/wiki/includes/api/ApiSetPageLanguage.php b/www/wiki/includes/api/ApiSetPageLanguage.php
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+++ b/www/wiki/includes/api/ApiSetPageLanguage.php
@@ -0,0 +1,145 @@
+<?php
+/**
+ * Copyright © 2017 Justin Du "<justin.d128@gmail.com>"
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+/**
+ * API module that facilitates changing the language of a page.
+ * The API equivalent of SpecialPageLanguage.
+ * Requires API write mode to be enabled.
+ *
+ * @ingroup API
+ */
+class ApiSetPageLanguage extends ApiBase {
+	// Check if change language feature is enabled
+	protected function getExtendedDescription() {
+		if ( !$this->getConfig()->get( 'PageLanguageUseDB' ) ) {
+			return 'apihelp-setpagelanguage-extended-description-disabled';
+		}
+		return parent::getExtendedDescription();
+	}
+
+	/**
+	 * Extracts the title and language from the request parameters and invokes
+	 * the static SpecialPageLanguage::changePageLanguage() function with these as arguments.
+	 * If the language change succeeds, the title, old language, and new language
+	 * of the article changed, as well as the performer of the language change
+	 * are added to the result object.
+	 */
+	public function execute() {
+		// Check if change language feature is enabled
+		if ( !$this->getConfig()->get( 'PageLanguageUseDB' ) ) {
+			$this->dieWithError( 'apierror-pagelang-disabled' );
+		}
+
+		// Check if the user has permissions
+		$this->checkUserRightsAny( 'pagelang' );
+
+		$this->useTransactionalTimeLimit();
+
+		$params = $this->extractRequestParams();
+
+		$pageObj = $this->getTitleOrPageId( $params, 'fromdbmaster' );
+		if ( !$pageObj->exists() ) {
+			$this->dieWithError( 'apierror-missingtitle' );
+		}
+
+		$titleObj = $pageObj->getTitle();
+		$user = $this->getUser();
+
+		// Check that the user is allowed to edit the page
+		$this->checkTitleUserPermissions( $titleObj, 'edit' );
+
+		// If change tagging was requested, check that the user is allowed to tag,
+		// and the tags are valid
+		if ( $params['tags'] ) {
+			$tagStatus = ChangeTags::canAddTagsAccompanyingChange( $params['tags'], $user );
+			if ( !$tagStatus->isOK() ) {
+				$this->dieStatus( $tagStatus );
+			}
+		}
+
+		$status = SpecialPageLanguage::changePageLanguage(
+			$this,
+			$titleObj,
+			$params['lang'],
+			$params['reason'] === null ? '' : $params['reason'],
+			$params['tags'] ?: []
+		);
+
+		if ( !$status->isOK() ) {
+			$this->dieStatus( $status );
+		}
+
+		$r = [
+			'title' => $titleObj->getPrefixedText(),
+			'oldlanguage' => $status->value->oldLanguage,
+			'newlanguage' => $status->value->newLanguage,
+			'logid' => $status->value->logId
+		];
+		$this->getResult()->addValue( null, $this->getModuleName(), $r );
+	}
+
+	public function mustBePosted() {
+		return true;
+	}
+
+	public function isWriteMode() {
+		return true;
+	}
+
+	public function getAllowedParams() {
+		return [
+			'title' => null,
+			'pageid' => [
+				ApiBase::PARAM_TYPE => 'integer'
+			],
+			'lang' => [
+				ApiBase::PARAM_TYPE => array_merge(
+					[ 'default' ],
+					array_keys( Language::fetchLanguageNames( null, 'mwfile' ) )
+				),
+				ApiBase::PARAM_REQUIRED => true,
+			],
+			'reason' => null,
+			'tags' => [
+				ApiBase::PARAM_TYPE => 'tags',
+				ApiBase::PARAM_ISMULTI => true,
+			],
+		];
+	}
+
+	public function needsToken() {
+		return 'csrf';
+	}
+
+	protected function getExamplesMessages() {
+		return [
+			'action=setpagelanguage&title=Main%20Page&lang=eu&token=123ABC'
+				=> 'apihelp-setpagelanguage-example-language',
+			'action=setpagelanguage&pageid=123&lang=default&token=123ABC'
+				=> 'apihelp-setpagelanguage-example-default',
+		];
+	}
+
+	public function getHelpUrls() {
+		return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:SetPageLanguage';
+	}
+}