1 files changed, 175 insertions, 0 deletions
diff --git a/www/wiki/extensions/Translate/ffs/JsonFFS.php b/www/wiki/extensions/Translate/ffs/JsonFFS.php
new file mode 100644
index 00000000..b12ac1c7
--- /dev/null
+++ b/www/wiki/extensions/Translate/ffs/JsonFFS.php
@@ -0,0 +1,175 @@
+<?php
+/**
+ * Support for JSON message file format.
+ *
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+/**
+ * JsonFFS implements a message format where messages are encoded
+ * as key-value pairs in JSON objects. The format is extended to
+ * support author information under the special @metadata key.
+ *
+ * @ingroup FFS
+ * @since 2012-09-21
+ */
+class JsonFFS extends SimpleFFS {
+	/**
+	 * @param string $data
+	 * @return bool
+	 */
+	public static function isValid( $data ) {
+		return is_array( FormatJson::decode( $data, /*as array*/true ) );
+	}
+
+	/**
+	 * @param FileBasedMessageGroup $group
+	 */
+	public function __construct( FileBasedMessageGroup $group ) {
+		parent::__construct( $group );
+		$this->flattener = $this->getFlattener();
+	}
+
+	public function getFileExtensions() {
+		return [ '.json' ];
+	}
+
+	/**
+	 * @param string $data
+	 * @return array Parsed data.
+	 */
+	public function readFromVariable( $data ) {
+		$messages = (array)FormatJson::decode( $data, /*as array*/true );
+		$authors = [];
+		$metadata = [];
+
+		if ( isset( $messages['@metadata']['authors'] ) ) {
+			$authors = (array)$messages['@metadata']['authors'];
+			unset( $messages['@metadata']['authors'] );
+		}
+
+		if ( isset( $messages['@metadata'] ) ) {
+			$metadata = $messages['@metadata'];
+		}
+
+		unset( $messages['@metadata'] );
+
+		if ( $this->flattener ) {
+			$messages = $this->flattener->flatten( $messages );
+		}
+
+		$messages = $this->group->getMangler()->mangle( $messages );
+
+		return [
+			'MESSAGES' => $messages,
+			'AUTHORS' => $authors,
+			'METADATA' => $metadata,
+		];
+	}
+
+	/**
+	 * @param MessageCollection $collection
+	 * @return string
+	 */
+	protected function writeReal( MessageCollection $collection ) {
+		$messages = [];
+		$template = $this->read( $collection->getLanguage() );
+
+		$messages['@metadata'] = [];
+		if ( isset( $template['METADATA'] ) ) {
+			$messages['@metadata'] = $template['METADATA'];
+		}
+
+		$authors = $collection->getAuthors();
+		$authors = $this->filterAuthors( $authors, $collection->code );
+
+		if ( isset( $template['AUTHORS'] ) ) {
+			$authors = array_unique( array_merge( $template['AUTHORS'], $authors ) );
+		}
+
+		if ( $authors !== [] ) {
+			$messages['@metadata']['authors'] = array_values( $authors );
+		}
+
+		$mangler = $this->group->getMangler();
+
+		/**
+		 * @var $m ThinMessage
+		 */
+		foreach ( $collection as $key => $m ) {
+			$value = $m->translation();
+			if ( $value === null ) {
+				continue;
+			}
+
+			if ( $m->hasTag( 'fuzzy' ) ) {
+				$value = str_replace( TRANSLATE_FUZZY, '', $value );
+			}
+
+			$key = $mangler->unmangle( $key );
+			$messages[$key] = $value;
+		}
+
+		// Do not create empty files. Check that something besides @metadata is present.
+		if ( count( $messages ) < 2 ) {
+			return '';
+		}
+
+		if ( $this->flattener ) {
+			$messages = $this->flattener->unflatten( $messages );
+		}
+
+		if ( isset( $this->extra['includeMetadata'] ) && !$this->extra['includeMetadata'] ) {
+			unset( $messages['@metadata'] );
+		}
+
+		return FormatJson::encode( $messages, "\t", FormatJson::ALL_OK ) . "\n";
+	}
+
+	protected function getFlattener() {
+		if ( !isset( $this->extra['nestingSeparator'] ) ) {
+			return null;
+		}
+
+		$parseCLDRPlurals = $this->extra['parseCLDRPlurals'] ?? false;
+		$flattener = new ArrayFlattener( $this->extra['nestingSeparator'], $parseCLDRPlurals );
+
+		return $flattener;
+	}
+
+	public function isContentEqual( $a, $b ) {
+		if ( $this->flattener ) {
+			return $this->flattener->compareContent( $a, $b );
+		} else {
+			return parent::isContentEqual( $a, $b );
+		}
+	}
+
+	public static function getExtraSchema() {
+		$schema = [
+			'root' => [
+				'_type' => 'array',
+				'_children' => [
+					'FILES' => [
+						'_type' => 'array',
+						'_children' => [
+							'nestingSeparator' => [
+								'_type' => 'text',
+							],
+							'parseCLDRPlurals' => [
+								'_type' => 'boolean',
+							],
+							'includeMetadata' => [
+								'_type' => 'boolean',
+							]
+						]
+					]
+				]
+			]
+		];
+
+		return $schema;
+	}
+}