[stable29] Respect empty expiryDate value in server

apps/files_sharing/lib/Controller/ShareAPIController.php

@@ -549,7 +549,8 @@ public function deleteShare(string $id): DataResponse {
 	 * @param string $publicUpload If public uploading is allowed
 	 * @param string $password Password for the share
 	 * @param string|null $sendPasswordByTalk Send the password for the share over Talk
-	 * @param string $expireDate Expiry date of the share using user timezone at 00:00. It means date in UTC timezone will be used.
+	 * @param ?string $expireDate The expiry date of the share in the user's timezone (UTC) at 00:00.
+	 *                If $expireDate is not supplied or set to `null`, the system default will be used.
 	 * @param string $note Note for the share
 	 * @param string $label Label for the share (only used in link and email)
 	 * @param string|null $attributes Additional attributes for the share
@@ -571,7 +572,7 @@ public function createShare(
 		string $publicUpload = 'false',
 		string $password = '',
 		?string $sendPasswordByTalk = null,
-		string $expireDate = '',
+		?string $expireDate = null,
 		string $note = '',
 		string $label = '',
 		?string $attributes = null
@@ -646,12 +647,18 @@ public function createShare(
 		}
 
 		//Expire date
-		if ($expireDate !== '') {
-			try {
-				$expireDateTime = $this->parseDate($expireDate);
-				$share->setExpirationDate($expireDateTime);
-			} catch (\Exception $e) {
-				throw new OCSNotFoundException($this->l->t('Invalid date, date format must be YYYY-MM-DD'));
+		if ($expireDate !== null) {
+			if ($expireDate !== '') {
+				try {
+					$expireDateTime = $this->parseDate($expireDate);
+					$share->setExpirationDate($expireDateTime);
+				} catch (\Exception $e) {
+					throw new OCSNotFoundException($this->l->t('Invalid date, date format must be YYYY-MM-DD'));
+				}
+			} else {
+				// Client sent empty string for expire date.
+				// Set noExpirationDate to true so overwrite is prevented.
+				$share->setNoExpirationDate(true);
 			}
 		}
 
@@ -768,19 +775,19 @@ public function createShare(
 			$share->setPermissions($permissions);
 		} elseif ($shareType === IShare::TYPE_ROOM) {
 			try {
-				$this->getRoomShareHelper()->createShare($share, $shareWith, $permissions, $expireDate);
+				$this->getRoomShareHelper()->createShare($share, $shareWith, $permissions, $expireDate ?? '');
 			} catch (QueryException $e) {
 				throw new OCSForbiddenException($this->l->t('Sharing %s failed because the back end does not support room shares', [$node->getPath()]));
 			}
 		} elseif ($shareType === IShare::TYPE_DECK) {
 			try {
-				$this->getDeckShareHelper()->createShare($share, $shareWith, $permissions, $expireDate);
+				$this->getDeckShareHelper()->createShare($share, $shareWith, $permissions, $expireDate ?? '');
 			} catch (QueryException $e) {
 				throw new OCSForbiddenException($this->l->t('Sharing %s failed because the back end does not support room shares', [$node->getPath()]));
 			}
 		} elseif ($shareType === IShare::TYPE_SCIENCEMESH) {
 			try {
-				$this->getSciencemeshShareHelper()->createShare($share, $shareWith, $permissions, $expireDate);
+				$this->getSciencemeshShareHelper()->createShare($share, $shareWith, $permissions, $expireDate ?? '');
 			} catch (QueryException $e) {
 				throw new OCSForbiddenException($this->l->t('Sharing %s failed because the back end does not support ScienceMesh shares', [$node->getPath()]));
 			}

apps/files_sharing/openapi.json

@@ -1781,10 +1781,10 @@
                     {
                         "name": "expireDate",
                         "in": "query",
-                        "description": "Expiry date of the share using user timezone at 00:00. It means date in UTC timezone will be used.",
+                        "description": "The expiry date of the share in the user's timezone (UTC) at 00:00. If $expireDate is not supplied or set to `null`, the system default will be used.",
                         "schema": {
                             "type": "string",
-                            "default": ""
+                            "nullable": true
                         }
                     },
                     {

build/integration/features/bootstrap/Sharing.php

@@ -81,7 +81,9 @@ public function asCreatingAShareWith($user, $body) {
 			$fd = $body->getRowsHash();
 			if (array_key_exists('expireDate', $fd)) {
 				$dateModification = $fd['expireDate'];
-				$fd['expireDate'] = date('Y-m-d', strtotime($dateModification));
+				if (!empty($dateModification)) {
+					$fd['expireDate'] = date('Y-m-d', strtotime($dateModification));
+				}
 			}
 			$options['form_params'] = $fd;
 		}
@@ -328,7 +330,9 @@ public function createShare($user,
 	public function isFieldInResponse($field, $contentExpected) {
 		$data = simplexml_load_string($this->response->getBody())->data[0];
 		if ((string)$field == 'expiration') {
-			$contentExpected = date('Y-m-d', strtotime($contentExpected)) . " 00:00:00";
+			if(!empty($contentExpected)) {
+				$contentExpected = date('Y-m-d', strtotime($contentExpected)) . " 00:00:00";
+			}
 		}
 		if (count($data->element) > 0) {
 			foreach ($data as $element) {

build/integration/sharing_features/sharing-v1.feature

@@ -229,6 +229,24 @@ Feature: sharing
       | url | AN_URL |
       | mimetype | httpd/unix-directory |
 
+  Scenario: Creating a new share with expiration date removed, when default expiration is set
+    Given user "user0" exists
+    And user "user1" exists
+    And parameter "shareapi_default_expire_date" of app "core" is set to "yes"
+    And As an "user0"
+    When creating a share with
+      | path | welcome.txt |
+      | shareWith | user1 |
+      | shareType | 0 |
+      | expireDate | |
+    Then the OCS status code should be "100"
+    And the HTTP status code should be "200"
+    And Getting info of last share
+    Then the OCS status code should be "100"
+    And the HTTP status code should be "200"
+    And Share fields of last share match with
+      | expiration ||
+
   Scenario: Creating a new public share, updating its password and getting its info
     Given user "user0" exists
     And As an "user0"