fix: Fix linkToOCSRouteAbsolute() without index.php and subfolder

Signed-off-by: Joas Schilling <coding@schilljs.com>

1 files changed, 12 insertions, 3 deletions

diff --git a/lib/private/URLGenerator.php b/lib/private/URLGenerator.php
index 57bafc3e18d..4e9a23b3eae 100644
--- a/lib/private/URLGenerator.php
+++ b/lib/private/URLGenerator.php
@@ -116,16 +116,25 @@ class URLGenerator implements IURLGenerator {
 	}
 
 	public function linkToOCSRouteAbsolute(string $routeName, array $arguments = []): string {
+		// Returns `/subfolder/index.php/ocsapp/…` with `'htaccess.IgnoreFrontController' => false` in config.php
+		// And `/subfolder/ocsapp/…` with `'htaccess.IgnoreFrontController' => true` in config.php
 		$route = $this->router->generate('ocs.'.$routeName, $arguments, false);
 
-		$indexPhpPos = strpos($route, '/index.php/');
-		if ($indexPhpPos !== false) {
-			$route = substr($route, $indexPhpPos + 10);
+		// Cut off `/subfolder`
+		if (\OC::$WEBROOT !== '' && str_starts_with($route, \OC::$WEBROOT)) {
+			$route = substr($route, \strlen(\OC::$WEBROOT));
 		}
 
+		if (str_starts_with($route, '/index.php/')) {
+			$route = substr($route, 10);
+		}
+
+		// Remove `ocsapp/` bit
 		$route = substr($route, 7);
+		// Prefix with ocs/v2.php endpoint
 		$route = '/ocs/v2.php' . $route;
 
+		// Turn into an absolute URL
 		return $this->getAbsoluteURL($route);
 	}