Add OC\VObject\StringProperty. Partial fix for owncloud/apps#762

lib/vobject/stringproperty.php

@@ -0,0 +1,80 @@
+<?php
+/**
+ * ownCloud - VObject String Property
+ *
+ * This class adds escaping of simple string properties.
+ *
+ * @author Thomas Tanghus
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\VObject;
+
+/**
+ * This class overrides \Sabre\VObject\Property::serialize() properly
+ * escape commas and semi-colons in string properties.
+*/
+class StringProperty extends \Sabre\VObject\Property {
+
+	/**
+	* Turns the object back into a serialized blob.
+	*
+	* @return string
+	*/
+	public function serialize() {
+
+		$str = $this->name;
+		if ($this->group) {
+			$str = $this->group . '.' . $this->name;
+		}
+
+		foreach($this->parameters as $param) {
+			$str.=';' . $param->serialize();
+		}
+
+		$src = array(
+			'\\',
+			"\n",
+			';',
+			',',
+		);
+		$out = array(
+			'\\\\',
+			'\n',
+			'\;',
+			'\,',
+		);
+		$value = strtr($this->value, array('\,' => ',', '\;' => ';', '\\\\' => '\\'));
+		$str.=':' . str_replace($src, $out, $value);
+
+		$out = '';
+		while(strlen($str) > 0) {
+			if (strlen($str) > 75) {
+				$out .= mb_strcut($str, 0, 75, 'utf-8') . "\r\n";
+				$str = ' ' . mb_strcut($str, 75, strlen($str), 'utf-8');
+			} else {
+				$out .= $str . "\r\n";
+				$str = '';
+				break;
+			}
+		}
+
+		return $out;
+
+	}
+
+}