1 files changed, 248 insertions, 0 deletions
diff --git a/www/wiki/extensions/Translate/messagegroups/WikiPageMessageGroup.php b/www/wiki/extensions/Translate/messagegroups/WikiPageMessageGroup.php
new file mode 100644
index 00000000..5208d179
--- /dev/null
+++ b/www/wiki/extensions/Translate/messagegroups/WikiPageMessageGroup.php
@@ -0,0 +1,248 @@
+<?php
+/**
+ * This file contains an unmanaged message group implementation.
+ *
+ * @file
+ * @author Niklas Laxström
+ * @author Siebrand Mazeland
+ * @license GPL-2.0-or-later
+ */
+
+/**
+ * Wraps the translatable page sections into a message group.
+ * @ingroup PageTranslation MessageGroup
+ */
+class WikiPageMessageGroup extends WikiMessageGroup implements IDBAccessObject, \Serializable {
+	/**
+	 * @var Title|string
+	 */
+	protected $title;
+
+	/**
+	 * @var int
+	 */
+	protected $namespace = NS_TRANSLATIONS;
+
+	/**
+	 * @param string $id
+	 * @param Title|string $source
+	 */
+	public function __construct( $id, $source ) {
+		$this->id = $id;
+		$this->title = $source;
+	}
+
+	public function getSourceLanguage() {
+		return $this->getTitle()->getPageLanguage()->getCode();
+	}
+
+	/**
+	 * @return Title
+	 */
+	public function getTitle() {
+		if ( is_string( $this->title ) ) {
+			$this->title = Title::newFromText( $this->title );
+		}
+
+		return $this->title;
+	}
+
+	/**
+	 * Only used for caching to avoid repeating database queries
+	 * for example during message index rebuild.
+	 */
+	protected $definitions;
+
+	/**
+	 * @return array
+	 */
+	public function getDefinitions() {
+		if ( is_array( $this->definitions ) ) {
+			return $this->definitions;
+		}
+
+		$dbr = TranslateUtils::getSafeReadDB();
+		$tables = 'translate_sections';
+		$vars = [ 'trs_key', 'trs_text' ];
+		$conds = [ 'trs_page' => $this->getTitle()->getArticleID() ];
+		$options = [ 'ORDER BY' => 'trs_order' ];
+		$res = $dbr->select( $tables, $vars, $conds, __METHOD__, $options );
+
+		$defs = [];
+		$prefix = $this->getTitle()->getPrefixedDBkey() . '/';
+
+		foreach ( $res as $r ) {
+			$section = new TPSection();
+			$section->text = $r->trs_text;
+			$defs[$r->trs_key] = $section->getTextWithVariables();
+		}
+
+		$new_defs = [];
+		foreach ( $defs as $k => $v ) {
+			$k = str_replace( ' ', '_', $k );
+			$new_defs[$prefix . $k] = $v;
+		}
+
+		$this->definitions = $new_defs;
+		return $this->definitions;
+	}
+
+	/**
+	 * Overriding the getLabel method and deriving the label from the title.
+	 * Mainly to reduce the amount of data stored in the cache.
+	 *
+	 * @param IContextSource|null $context
+	 * @return string
+	 */
+	public function getLabel( IContextSource $context = null ) {
+		return $this->getTitle()->getPrefixedText();
+	}
+
+	/**
+	 * Clear caches to avoid stale data.
+	 *
+	 * For example JobQueue can run for a longer time, and stale definitions would
+	 * cause the total number of messages to be incorrect.
+	 *
+	 * @since 2016.04
+	 */
+	public function clearCaches() {
+		$this->definitions = null;
+	}
+
+	public function load( $code ) {
+		if ( $this->isSourceLanguage( $code ) ) {
+			return $this->getDefinitions();
+		}
+
+		return [];
+	}
+
+	/**
+	 * Returns of stored translation of message specified by the $key in language
+	 * code $code.
+	 *
+	 * @param string $key Message key
+	 * @param string $code Language code
+	 * @param int $flags READ_* class constant bitfield
+	 * @return string|null Stored translation or null.
+	 */
+	public function getMessage( $key, $code, $flags = self::READ_LATEST ) {
+		if ( $this->isSourceLanguage( $code ) ) {
+			$stuff = $this->load( $code );
+
+			$title = Title::newFromText( $key );
+			if ( $title ) {
+				$key = $title->getPrefixedDBkey();
+			}
+
+			return $stuff[$key] ?? null;
+		}
+
+		$title = Title::makeTitleSafe( $this->getNamespace(), "$key/$code" );
+		if ( PageTranslationHooks::$renderingContext ) {
+			$revFlags = Revision::READ_NORMAL; // bug T95753
+		} else {
+			$revFlags = ( $flags & self::READ_LATEST ) == self::READ_LATEST
+				? Revision::READ_LATEST
+				: Revision::READ_NORMAL;
+		}
+		$rev = Revision::newFromTitle( $title, false, $revFlags );
+
+		if ( !$rev ) {
+			return null;
+		}
+
+		return ContentHandler::getContentText( $rev->getContent() );
+	}
+
+	/**
+	 * @return MediaWikiMessageChecker
+	 */
+	public function getChecker() {
+		$checker = new MediaWikiMessageChecker( $this );
+		$checker->setChecks( [
+			[ $checker, 'pluralCheck' ],
+			[ $checker, 'braceBalanceCheck' ],
+			[ $checker, 'miscMWChecks' ]
+		] );
+
+		return $checker;
+	}
+
+	public function getInsertablesSuggester() {
+		return new TranslatablePageInsertablesSuggester();
+	}
+
+	public function getDescription( IContextSource $context = null ) {
+		$title = $this->getTitle()->getPrefixedText();
+		$target = ":$title";
+		$pageLanguageCode = $this->getSourceLanguage();
+		$inLanguageCode = $context ? $context->getLanguage()->getCode() : null;
+		$languageName = Language::fetchLanguageName( $pageLanguageCode, $inLanguageCode );
+
+		// Allow for adding a custom group description by using
+		// "MediaWiki:Tp-custom-<group ID>".
+		$customText = '';
+		$msg = wfMessage( 'tp-custom-' . $this->id );
+		self::addContext( $msg, $context );
+		if ( $msg->exists() ) {
+			$customText = $msg->plain();
+		}
+
+		$msg = wfMessage( 'translate-tag-page-desc', $title, $target, $languageName, $pageLanguageCode );
+		self::addContext( $msg, $context );
+
+		return $msg->plain() . $customText;
+	}
+
+	public function serialize() {
+		$toSerialize = [
+			'title' => $this->getTitle()->getPrefixedText(),
+			'id' => $this->id,
+			'_v' => 1 // version - to track incompatible changes
+		];
+
+		// NOTE: get_class_vars returns properties before the constructor has run so if any default
+		// values have to be set for properties, do them while declaring the properties themselves.
+		// Also any properties that are object will automatically be serialized because `===`
+		// does not actually compare object properties to see that they are same.
+
+		// Using array_diff_key to unset the properties already set earlier.
+		$defaultProps = array_diff_key( get_class_vars( self::class ),  $toSerialize );
+
+		foreach ( $defaultProps as $prop => $defaultVal ) {
+			if ( $this->{$prop} === $defaultVal ) {
+				continue;
+			}
+
+			$toSerialize[$prop] = $this->{$prop};
+		}
+
+		return FormatJson::encode( $toSerialize, false, FormatJson::ALL_OK );
+	}
+
+	public function unserialize( $serialized ) {
+		$deserialized = FormatJson::decode( $serialized );
+		if ( $deserialized === false ) {
+			// Unrecoverable. This should not happen but still.
+			throw new \UnexpectedValueException(
+				'Error while deserializing to WikiPageMessageGroup object - FormatJson::decode failed. ' .
+				"Serialize string - $serialized."
+			);
+		}
+
+		// Use as needed in the future to track incompatible changes.
+		// $version = $deserialized->_v;
+		// unset($deserialized->_v);
+
+		// Only set the properties that are present in the class and the deserialized object.
+		$classProps = array_keys( get_class_vars( self::class ) );
+
+		foreach ( $classProps as $prop ) {
+			if ( property_exists( $deserialized, $prop ) ) {
+				$this->{$prop} = $deserialized->{$prop};
+			}
+		}
+	}
+}