1 files changed, 109 insertions, 0 deletions
diff --git a/includes/jobqueue/jobs/ThumbnailRenderJob.php b/includes/jobqueue/jobs/ThumbnailRenderJob.php
new file mode 100644
index 00000000..ab381388
--- /dev/null
+++ b/includes/jobqueue/jobs/ThumbnailRenderJob.php
@@ -0,0 +1,109 @@
+<?php
+/**
+ * Job for asynchronous rendering of thumbnails.
+ *
+ * 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
+ * @ingroup JobQueue
+ */
+
+/**
+ * Job for asynchronous rendering of thumbnails.
+ *
+ * @ingroup JobQueue
+ */
+class ThumbnailRenderJob extends Job {
+	public function __construct( $title, $params ) {
+		parent::__construct( 'ThumbnailRender', $title, $params );
+	}
+
+	public function run() {
+		global $wgUploadThumbnailRenderMethod;
+
+		$transformParams = $this->params['transformParams'];
+
+		$file = wfLocalFile( $this->title );
+		$file->load( File::READ_LATEST );
+
+		if ( $file && $file->exists() ) {
+			if ( $wgUploadThumbnailRenderMethod === 'jobqueue' ) {
+				$thumb = $file->transform( $transformParams, File::RENDER_NOW );
+
+				if ( $thumb && !$thumb->isError() ) {
+					return true;
+				} else {
+					$this->setLastError( __METHOD__ . ': thumbnail couln\'t be generated' );
+					return false;
+				}
+			} elseif ( $wgUploadThumbnailRenderMethod === 'http' ) {
+				$status = $this->hitThumbUrl( $file, $transformParams );
+
+				wfDebug( __METHOD__ . ": received status {$status}\n" );
+
+				if ( $status === 200 || $status === 301 || $status === 302 ) {
+					return true;
+				} elseif ( $status ) {
+					// Note that this currently happens (500) when requesting sizes larger then or
+					// equal to the original, which is harmless.
+					$this->setLastError( __METHOD__ . ': incorrect HTTP status ' . $status );
+					return false;
+				} else {
+					$this->setLastError( __METHOD__ . ': HTTP request failure' );
+					return false;
+				}
+			} else {
+				$this->setLastError( __METHOD__ . ': unknown thumbnail render method ' . $wgUploadThumbnailRenderMethod );
+				return false;
+			}
+		} else {
+			$this->setLastError( __METHOD__ . ': file doesn\'t exist' );
+			return false;
+		}
+	}
+
+	protected function hitThumbUrl( $file, $transformParams ) {
+		global $wgUploadThumbnailRenderHttpCustomHost, $wgUploadThumbnailRenderHttpCustomDomain;
+
+		$thumbName = $file->thumbName( $transformParams );
+		$thumbUrl = $file->getThumbUrl( $thumbName );
+
+		if ( $wgUploadThumbnailRenderHttpCustomDomain ) {
+			$parsedUrl = wfParseUrl( $thumbUrl );
+
+			if ( !$parsedUrl || !isset( $parsedUrl['path'] ) || !strlen( $parsedUrl['path'] ) ) {
+				return false;
+			}
+
+			$thumbUrl = '//' . $wgUploadThumbnailRenderHttpCustomDomain . $parsedUrl['path'];
+		}
+
+		wfDebug( __METHOD__ . ": hitting url {$thumbUrl}\n" );
+
+		$request = MWHttpRequest::factory( $thumbUrl,
+			array( 'method' => 'HEAD', 'followRedirects' => true ),
+			__METHOD__
+		);
+
+		if ( $wgUploadThumbnailRenderHttpCustomHost ) {
+			$request->setHeader( 'Host', $wgUploadThumbnailRenderHttpCustomHost );
+		}
+
+		$status = $request->execute();
+
+		return $request->getStatus();
+	}
+}