fix: modified touch function of the SFTP storage to update mtimes instead

Signed-off-by: Hendrik Leidinger <hendrik.leidinger@nextcloud.com>

Author: rikled

apps/files_external/lib/Lib/Storage/SFTP.php

@@ -333,10 +333,7 @@ public function fopen(string $path, string $mode) {
 					$fh = fopen('sftpwrite://' . trim($absPath, '/'), 'w', false, $context);
 					if ($fh) {
 						$fh = CallbackWrapper::wrap($fh, null, null, function () use ($path): void {
-							$mtime = time();
-							$this->knownMTimes->set($path, $mtime);
-							$this->getConnection()->touch($this->absPath($path), $mtime, $mtime);
-							$this->getConnection()->clearStatCache();
+							$this->touch($path, time());
 						});
 					}
 					return $fh;
@@ -360,18 +357,17 @@ public function fopen(string $path, string $mode) {
 	}
 
 	public function touch(string $path, ?int $mtime = null): bool {
-		try {
+		
+		$result = $this->getConnection()->touch($this->absPath($path), $mtime, $mtime);
+
+		if ($result) {
+			$this->getConnection()->clearStatCache($this->absPath($path));
 			if (!is_null($mtime)) {
-				return false;
-			}
-			if (!$this->file_exists($path)) {
-				return $this->getConnection()->put($this->absPath($path), '');
-			} else {
-				return false;
+				$this->knownMTimes->set($path, $mtime);
 			}
-		} catch (\Exception $e) {
-			return false;
 		}
+
+		return $result;
 	}
 
 	/**
@@ -432,10 +428,8 @@ public function constructUrl(string $path): string {
 	public function file_put_contents(string $path, mixed $data): int|float|false {
 		/** @psalm-suppress InternalMethod */
 		$result = $this->getConnection()->put($this->absPath($path), $data);
-		$mtime = time();
-		$this->knownMTimes->set($path, $mtime);
-		$this->getConnection()->touch($this->absPath($path), $mtime, $mtime);
-		$this->getConnection()->clearStatCache();
+
+		$this->touch($path, time());
 
 		if ($result) {
 			return strlen($data);
@@ -456,10 +450,8 @@ public function writeStream(string $path, $stream, ?int $size = null): int {
 		/** @psalm-suppress InternalMethod */
 		$result = $this->getConnection()->put($this->absPath($path), $stream);
 		fclose($stream);
-		$mtime = time();
-		$this->knownMTimes->set($path, $mtime);
-		$this->getConnection()->touch($this->absPath($path), $mtime, $mtime);
-		$this->getConnection()->clearStatCache();
+
+		$this->touch($path, time());
 
 		if ($result) {
 			if ($size === null) {