1 files changed, 101 insertions, 0 deletions
diff --git a/vendor/sabre/dav/lib/DAV/Browser/GuessContentType.php b/vendor/sabre/dav/lib/DAV/Browser/GuessContentType.php
new file mode 100644
index 000000000..01cddc230
--- /dev/null
+++ b/vendor/sabre/dav/lib/DAV/Browser/GuessContentType.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\HTTP\URLUtil;
+use Sabre\DAV;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\Inode;
+
+/**
+ * GuessContentType plugin
+ *
+ * A lot of the built-in File objects just return application/octet-stream
+ * as a content-type by default. This is a problem for some clients, because
+ * they expect a correct contenttype.
+ *
+ * There's really no accurate, fast and portable way to determine the contenttype
+ * so this extension does what the rest of the world does, and guesses it based
+ * on the file extension.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class GuessContentType extends DAV\ServerPlugin {
+
+    /**
+     * List of recognized file extensions
+     *
+     * Feel free to add more
+     *
+     * @var array
+     */
+    public $extensionMap = [
+
+        // images
+        'jpg' => 'image/jpeg',
+        'gif' => 'image/gif',
+        'png' => 'image/png',
+
+        // groupware
+        'ics' => 'text/calendar',
+        'vcf' => 'text/vcard',
+
+        // text
+        'txt' => 'text/plain',
+
+    ];
+
+    /**
+     * Initializes the plugin
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        // Using a relatively low priority (200) to allow other extensions
+        // to set the content-type first.
+        $server->on('propFind', [$this, 'propFind'], 200);
+
+    }
+
+    /**
+     * Our PROPFIND handler
+     *
+     * Here we set a contenttype, if the node didn't already have one.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFind(PropFind $propFind, INode $node) {
+
+        $propFind->handle('{DAV:}getcontenttype', function() use ($propFind) {
+
+            list(, $fileName) = URLUtil::splitPath($propFind->getPath());
+            return $this->getContentType($fileName);
+
+        });
+
+    }
+
+    /**
+     * Simple method to return the contenttype
+     *
+     * @param string $fileName
+     * @return string
+     */
+    protected function getContentType($fileName) {
+
+        // Just grabbing the extension
+        $extension = strtolower(substr($fileName, strrpos($fileName, '.') + 1));
+        if (isset($this->extensionMap[$extension])) {
+            return $this->extensionMap[$extension];
+        }
+        return 'application/octet-stream';
+
+    }
+
+}