Allow to directly set the expireDate on a new (link)share

Since this extends the API we now properly parse the date. We only
accept valid ISO 8601 Dates (YYYY-MM-DD).

Currently this only works for link shares (it is just ignored for other
shares). Since we do not have user/group/federated expiring shares yet.

* Tests added

1 files changed, 36 insertions, 2 deletions

diff --git a/apps/files_sharing/api/local.php b/apps/files_sharing/api/local.php
index eb0e0e0d846..eeb31899830 100644
--- a/apps/files_sharing/api/local.php
+++ b/apps/files_sharing/api/local.php
@@ -258,6 +258,7 @@ class Local {
 		$itemSource = self::getFileId($path);
 		$itemSourceName = $itemSource;
 		$itemType = self::getItemType($path);
+		$expirationDate = null;
 
 		if($itemSource === null) {
 			return new \OC_OCS_Result(null, 404, "wrong path, file/folder doesn't exist.");
@@ -286,6 +287,14 @@ class Local {
 				// read, create, update (7) if public upload is enabled or
 				// read (1) if public upload is disabled
 				$permissions = $publicUpload === 'true' ? 7 : 1;
+
+				// Get the expiration date
+				try {
+					$expirationDate = isset($_POST['expireDate']) ? self::parseDate($_POST['expireDate']) : null;
+				} catch (\Exception $e) {
+					return new \OC_OCS_Result(null, 404, 'Invalid Date');
+				}
+
 				break;
 			default:
 				return new \OC_OCS_Result(null, 400, "unknown share type");
@@ -302,8 +311,9 @@ class Local {
 					$shareType,
 					$shareWith,
 					$permissions,
-					$itemSourceName
-					);
+					$itemSourceName,
+					$expirationDate
+			);
 		} catch (HintException $e) {
 			return new \OC_OCS_Result(null, 400, $e->getHint());
 		} catch (\Exception $e) {
@@ -538,6 +548,30 @@ class Local {
 	}
 
 	/**
+	 * Make sure that the passed date is valid ISO 8601
+	 * So YYYY-MM-DD
+	 * If not throw an exception
+	 *
+	 * @param string $expireDate
+	 *
+	 * @throws \Exception
+	 * @return \DateTime
+	 */
+	private static function parseDate($expireDate) {
+		if (preg_match('/^\d{4}-\d{2}-\d{2}$/', $expireDate) === 0) {
+			throw new \Exception();
+		}
+
+		$date = new \DateTime($expireDate);
+
+		if ($date === false) {
+			throw new \Exception();
+		}
+
+		return $date;
+	}
+
+	/**
 	 * get file ID from a given path
 	 * @param string $path
 	 * @return string fileID or null