Correctly handle multi-values when converting VCards to array

apps/dav/lib/CardDAV/AddressBookImpl.php

@@ -28,6 +28,7 @@ use OCP\Constants;
 use OCP\IAddressBook;
 use OCP\IURLGenerator;
 use Sabre\VObject\Component\VCard;
+use Sabre\VObject\Property;
 use Sabre\VObject\Property\Text;
 use Sabre\VObject\Reader;
 use Sabre\VObject\UUIDUtil;
@@ -225,7 +226,7 @@ class AddressBookImpl implements IAddressBook {
 		];
 
 		foreach ($vCard->children as $property) {
-			$result[$property->name] = $property->getValue();
+			/** @var \Sabre\VObject\Property\Unknown $property */
 			if ($property->name === 'PHOTO' && $property->getValueType() === 'BINARY') {
 				$url = $this->urlGenerator->getAbsoluteURL(
 					$this->urlGenerator->linkTo('', 'remote.php') . '/dav/');
@@ -237,14 +238,53 @@ class AddressBookImpl implements IAddressBook {
 				]) . '?photo';
 
 				$result['PHOTO'] = 'VALUE=uri:' . $url;
+
+			} else if ($property->name === 'X-SOCIALPROFILE') {
+				$type = $this->getTypeFromProperty($property);
+
+				// Type is the social network, when it's empty we don't need this.
+				if ($type !== null) {
+					if (!isset($result[$property->name])) {
+						$result[$property->name] = [];
+					}
+					$result[$property->name][$type] = $property->getValue();
+				}
+
+			// The following properties can be set multiple times
+			} else if (in_array($property->name, ['CLOUD', 'EMAIL', 'IMPP', 'TEL', 'URL'])) {
+				if (!isset($result[$property->name])) {
+					$result[$property->name] = [];
+				}
+
+				$result[$property->name][] = $property->getValue();
+
 			} else {
 				$result[$property->name] = $property->getValue();
 			}
 		}
+
 		if ($this->addressBookInfo['principaluri'] === 'principals/system/system' &&
 			$this->addressBookInfo['uri'] === 'system') {
 			$result['isLocalSystemBook'] = true;
 		}
 		return $result;
 	}
+
+	/**
+	 * Get the type of the current property
+	 *
+	 * @param Property $property
+	 * @return null|string
+	 */
+	protected function getTypeFromProperty(Property $property) {
+		$parameters = $property->parameters();
+		// Type is the social network, when it's empty we don't need this.
+		if (isset($parameters['TYPE'])) {
+			/** @var \Sabre\VObject\Parameter $type */
+			$type = $parameters['TYPE'];
+			return $type->getValue();
+		}
+
+		return null;
+	}
 }