1 files changed, 152 insertions, 0 deletions
diff --git a/lib/private/StreamImage.php b/lib/private/StreamImage.php
new file mode 100644
index 00000000000..38fd114df17
--- /dev/null
+++ b/lib/private/StreamImage.php
@@ -0,0 +1,152 @@
+<?php
+/**
+ * @copyright Copyright (c) 2021 Carl Schwan <carl@carlschwan.eu>
+ *
+ * @author Carl Schwan <carl@carlschwan.eu>
+ *
+ * @license AGPL-3.0-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC;
+
+use OCP\IStreamImage;
+use OCP\IImage;
+
+/**
+ * Only useful when dealing with transferring streamed previews from an external
+ * service to an object store.
+ *
+ * Only width/height/resource and mimeType are implemented and will give you a
+ * valid result.
+ */
+class StreamImage implements IStreamImage {
+	/** @var resource The internal stream */
+	private $stream;
+
+	/** @var string */
+	private $mimeType;
+
+	/** @var int */
+	private $width;
+
+	/** @var int */
+	private $height;
+
+	/** @param resource $stream */
+	public function __construct($stream, string $mimeType, int $width, int $height) {
+		$this->stream = $stream;
+		$this->mimeType = $mimeType;
+		$this->width = $width;
+		$this->height = $height;
+	}
+
+	/** @inheritDoc */
+	public function valid() {
+		return is_resource($this->stream);
+	}
+
+	/** @inheritDoc */
+	public function mimeType() {
+		return $this->mimeType;
+	}
+
+	/** @inheritDoc */
+	public function width() {
+		return $this->width;
+	}
+
+	/** @inheritDoc */
+	public function height() {
+		return $this->height;
+	}
+
+	public function widthTopLeft() {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function heightTopLeft() {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function show($mimeType = null) {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function save($filePath = null, $mimeType = null) {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function resource() {
+		return $this->stream;
+	}
+
+	public function dataMimeType() {
+		return $this->mimeType;
+	}
+
+	public function data() {
+		return '';
+	}
+
+	public function getOrientation() {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function fixOrientation() {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function resize($maxSize) {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function preciseResize(int $width, int $height): bool {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function centerCrop($size = 0) {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function crop(int $x, int $y, int $w, int $h): bool {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function fitIn($maxWidth, $maxHeight) {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function scaleDownToFit($maxWidth, $maxHeight) {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function copy(): IImage {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function cropCopy(int $x, int $y, int $w, int $h): IImage {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function preciseResizeCopy(int $width, int $height): IImage {
+		throw new \BadMethodCallException('Not implemented');
+	}
+
+	public function resizeCopy(int $maxSize): IImage {
+		throw new \BadMethodCallException('Not implemented');
+	}
+}