1 files changed, 136 insertions, 0 deletions
diff --git a/app/Controller/FileViewerController.php b/app/Controller/FileViewerController.php
new file mode 100644
index 00000000..245845c7
--- /dev/null
+++ b/app/Controller/FileViewerController.php
@@ -0,0 +1,136 @@
+<?php
+
+namespace Kanboard\Controller;
+
+use Kanboard\Core\ObjectStorage\ObjectStorageException;
+
+/**
+ * File Viewer Controller
+ *
+ * @package  Kanbaord\Controller
+ * @author   Frederic Guillot
+ */
+class FileViewerController extends BaseController
+{
+    /**
+     * Get file content from object storage
+     *
+     * @access private
+     * @param  array $file
+     * @return string
+     */
+    private function getFileContent(array $file)
+    {
+        $content = '';
+
+        try {
+            if ($file['is_image'] == 0) {
+                $content = $this->objectStorage->get($file['path']);
+            }
+        } catch (ObjectStorageException $e) {
+            $this->logger->error($e->getMessage());
+        }
+
+        return $content;
+    }
+
+    /**
+     * Show file content in a popover
+     *
+     * @access public
+     */
+    public function show()
+    {
+        $file = $this->getFile();
+        $type = $this->helper->file->getPreviewType($file['name']);
+        $params = array('file_id' => $file['id'], 'project_id' => $this->request->getIntegerParam('project_id'));
+
+        if ($file['model'] === 'taskFile') {
+            $params['task_id'] = $file['task_id'];
+        }
+
+        $this->response->html($this->template->render('file_viewer/show', array(
+            'file' => $file,
+            'params' => $params,
+            'type' => $type,
+            'content' => $this->getFileContent($file),
+        )));
+    }
+
+    /**
+     * Display image
+     *
+     * @access public
+     */
+    public function image()
+    {
+        $file = $this->getFile();
+        $etag = md5($file['path']);
+        $this->response->withContentType($this->helper->file->getImageMimeType($file['name']));
+        $this->response->withCache(5 * 86400, $etag);
+
+        if ($this->request->getHeader('If-None-Match') === '"'.$etag.'"') {
+            $this->response->status(304);
+        } else {
+
+            try {
+                $this->response->send();
+                $this->objectStorage->output($file['path']);
+            } catch (ObjectStorageException $e) {
+                $this->logger->error($e->getMessage());
+            }
+        }
+    }
+
+    /**
+     * Display image thumbnail
+     *
+     * @access public
+     */
+    public function thumbnail()
+    {
+        $file = $this->getFile();
+        $model = $file['model'];
+        $filename = $this->$model->getThumbnailPath($file['path']);
+        $etag = md5($filename);
+
+        $this->response->withCache(5 * 86400, $etag);
+        $this->response->withContentType('image/jpeg');
+
+        if ($this->request->getHeader('If-None-Match') === '"'.$etag.'"') {
+            $this->response->status(304);
+        } else {
+
+            $this->response->send();
+
+            try {
+
+                $this->objectStorage->output($filename);
+            } catch (ObjectStorageException $e) {
+                $this->logger->error($e->getMessage());
+
+                // Try to generate thumbnail on the fly for images uploaded before Kanboard < 1.0.19
+                $data = $this->objectStorage->get($file['path']);
+                $this->$model->generateThumbnailFromData($file['path'], $data);
+                $this->objectStorage->output($this->$model->getThumbnailPath($file['path']));
+            }
+        }
+    }
+
+    /**
+     * File download
+     *
+     * @access public
+     */
+    public function download()
+    {
+        try {
+            $file = $this->getFile();
+            $this->response->withFileDownload($file['name']);
+            $this->response->send();
+            $this->objectStorage->output($file['path']);
+        } catch (ObjectStorageException $e) {
+            $this->logger->error($e->getMessage());
+        }
+    }
+}