Allow specifying a default expiration date

This overrides the max expiration date.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

Author: rullzer

lib/private/Share20/Manager.php

@@ -396,7 +396,12 @@ protected function validateExpirationDateInternal(\OCP\Share\IShare $share) {
 		if ($fullId === null && $expirationDate === null && $this->shareApiInternalDefaultExpireDate()) {
 			$expirationDate = new \DateTime();
 			$expirationDate->setTime(0,0,0);
-			$expirationDate->add(new \DateInterval('P'.$this->shareApiInternalDefaultExpireDays().'D'));
+
+			$days = (int)$this->config->getAppValue('core', 'internal_defaultExpDays', $this->shareApiLinkDefaultExpireDays());
+			if ($days > $this->shareApiLinkDefaultExpireDays()) {
+				$days = $this->shareApiLinkDefaultExpireDays();
+			}
+			$expirationDate->add(new \DateInterval('P'.$days.'D'));
 		}
 
 		// If we enforce the expiration date check that is does not exceed
@@ -467,7 +472,12 @@ protected function validateExpirationDate(\OCP\Share\IShare $share) {
 		if ($fullId === null && $expirationDate === null && $this->shareApiLinkDefaultExpireDate()) {
 			$expirationDate = new \DateTime();
 			$expirationDate->setTime(0,0,0);
-			$expirationDate->add(new \DateInterval('P'.$this->shareApiLinkDefaultExpireDays().'D'));
+
+			$days = (int)$this->config->getAppValue('core', 'link_defaultExpDays', $this->shareApiLinkDefaultExpireDays());
+			if ($days > $this->shareApiLinkDefaultExpireDays()) {
+				$days = $this->shareApiLinkDefaultExpireDays();
+			}
+			$expirationDate->add(new \DateInterval('P'.$days.'D'));
 		}
 
 		// If we enforce the expiration date check that is does not exceed

tests/lib/Share20/ManagerTest.php

@@ -808,6 +808,7 @@ public function testvalidateExpirationDateEnforceButNotSetNewShare() {
 				['core', 'shareapi_enforce_expire_date', 'no', 'yes'],
 				['core', 'shareapi_expire_after_n_days', '7', '3'],
 				['core', 'shareapi_default_expire_date', 'no', 'yes'],
+				['core', 'link_defaultExpDays', 3, '3'],
 			]);
 
 		$expected = new \DateTime();