Add SGI and TGA preview support

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>

lib/private/Preview/SGI.php

@@ -0,0 +1,35 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Robin Appelman <robin@icewind.nl>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Preview;
+
+//.sgi
+class SGI extends Bitmap {
+	/**
+	 * {@inheritDoc}
+	 */
+	public function getMimeType(): string {
+		return '/image\/sgi/';
+	}
+}

lib/private/Preview/TGA.php

@@ -0,0 +1,35 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Robin Appelman <robin@icewind.nl>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Preview;
+
+//.tga
+class TGA extends Bitmap {
+	/**
+	 * {@inheritDoc}
+	 */
+	public function getMimeType(): string {
+		return '/image\/t(ar)?ga/';
+	}
+}

lib/private/PreviewManager.php

@@ -379,6 +379,8 @@ protected function registerCoreProviders() {
 				'EPS' => ['mimetype' => '/application\/postscript/', 'class' => Preview\Postscript::class],
 				'TTF' => ['mimetype' => '/application\/(?:font-sfnt|x-font$)/', 'class' => Preview\Font::class],
 				'HEIC' => ['mimetype' => '/image\/hei(f|c)/', 'class' => Preview\HEIC::class],
+				'TGA' => ['mimetype' => '/image\/t(ar)?ga/', 'class' => Preview\TGA::class],
+				'SGI' => ['mimetype' => '/image\/sgi/', 'class' => Preview\SGI::class],
 			];
 
 			foreach ($imagickProviders as $queryFormat => $provider) {

resources/config/mimetypealiases.dist.json

@@ -104,6 +104,8 @@
 	"application/internet-shortcut": "link",
 	"application/km": "mindmap",
 	"application/x-freemind": "mindmap",
-	"application/vnd.xmind.workbook": "mindmap"
+	"application/vnd.xmind.workbook": "mindmap",
+	"image/targa": "image/tga",
+	"image/targa": "image/tga"
 }
 

resources/config/mimetypemapping.dist.json

@@ -165,6 +165,7 @@
 	"rw2": ["image/x-dcraw"],
 	"schema": ["text/plain"],
 	"sgf": ["application/sgf"],
+	"sgi": ["image/sgi"],
 	"sh-lib": ["text/x-shellscript"],
 	"sh": ["text/x-shellscript"],
 	"srf": ["image/x-dcraw"],
@@ -177,6 +178,7 @@
 	"tbz2": ["application/x-bzip2"],
 	"tcx": ["application/vnd.garmin.tcx+xml"],
 	"tex": ["application/x-tex"],
+	"tga": ["image/tga"],
 	"tgz": ["application/x-compressed"],
 	"tiff": ["image/tiff"],
 	"tif": ["image/tiff"],