Version 4.5.0

applications/forums/api/GraphQL/Queries/Topic.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * @brief		GraphQL: Topic query
+ * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
+ * @copyright	(c) 2001 - 2016 Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/legal/standards/
+ * @package		IPS Community Suite
+ * @since		10 May 2017
+ * @version		SVN_VERSION_NUMBER
+ */
+
+namespace IPS\forums\api\GraphQL\Queries;
+use GraphQL\Type\Definition\ObjectType;
+use IPS\Api\GraphQL\TypeRegistry;
+
+/* To prevent PHP errors (extending class does not exist) revealing path */
+if ( !\defined( '\IPS\SUITE_UNIQUE_KEY' ) )
+{
+	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
+	exit;
+}
+
+/**
+ * Topic query for GraphQL API
+ */
+class _Topic
+{
+	/*
+	 * @brief 	Query description
+	 */
+	public static $description = "Returns a topic";
+
+	/*
+	 * Query arguments
+	 */
+	public function args()
+	{
+		return array(
+			'id' => TypeRegistry::nonNull( TypeRegistry::id() )
+		);
+	}
+
+	/**
+	 * Return the query return type
+	 */
+	public function type() 
+	{
+		return \IPS\forums\api\GraphQL\TypeRegistry::topic();
+	}
+
+	/**
+	 * Resolves this query
+	 *
+	 * @param 	mixed 	Value passed into this resolver
+	 * @param 	array 	Arguments
+	 * @param 	array 	Context values
+	 * @return	\IPS\forums\Topic\Post
+	 */
+	public function resolve($val, $args, $context, $info)
+	{
+		try
+		{
+			$topic = \IPS\forums\Topic::loadAndCheckPerms( $args['id'] );
+		}
+		catch ( \OutOfRangeException $e )
+		{
+			throw new \IPS\Api\GraphQL\SafeException( 'NO_TOPIC', '1F294/2', 400 );
+		}
+
+		if( !$topic->can('read') )
+		{
+			throw new \IPS\Api\GraphQL\SafeException( 'INVALID_ID', '2F294/9', 403 );
+		}
+
+		return $topic;
+	}
+}