chore: remove all mbstring.func_overload references

.htaccess

@@ -60,7 +60,6 @@
 </IfModule>
 
 <IfModule mod_php.c>
-  php_value mbstring.func_overload 0
   php_value default_charset 'UTF-8'
   php_value output_buffering 0
   <IfModule mod_env.c>

.user.ini

@@ -1,7 +1,9 @@
 ; SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
 ; SPDX-FileCopyrightText: 2014-2016 ownCloud, Inc.
 ; SPDX-License-Identifier: AGPL-3.0-only
-mbstring.func_overload=0
+;
+; NOTE: PHP caches this file for 300 seconds by default
+;
 always_populate_raw_post_data=-1
 default_charset='UTF-8'
 output_buffering=0

lib/private/legacy/OC_Util.php

@@ -458,22 +458,6 @@ public static function checkServer(\OC\SystemConfig $config) {
 			$webServerRestart = true;
 		}
 
-		/**
-		 * The mbstring.func_overload check can only be performed if the mbstring
-		 * module is installed as it will return null if the checking setting is
-		 * not available and thus a check on the boolean value fails.
-		 *
-		 * TODO: Should probably be implemented in the above generic dependency
-		 *       check somehow in the long-term.
-		 */
-		if ($iniWrapper->getBool('mbstring.func_overload') !== null
-			&& $iniWrapper->getBool('mbstring.func_overload') === true) {
-			$errors[] = [
-				'error' => $l->t('<code>mbstring.func_overload</code> is set to <code>%s</code> instead of the expected value <code>0</code>.', [$iniWrapper->getString('mbstring.func_overload')]),
-				'hint' => $l->t('To fix this issue set <code>mbstring.func_overload</code> to <code>0</code> in your php.ini.')
-			];
-		}
-
 		if (!self::isAnnotationsWorking()) {
 			$errors[] = [
 				'error' => $l->t('PHP is apparently set up to strip inline doc blocks. This will make several core apps inaccessible.'),

tests/data/integritycheck/htaccessWithValidModifiedContent/.htaccess

@@ -1,6 +1,5 @@
 # Start of valid file
 <IfModule mod_php7.c>
-  php_value mbstring.func_overload 0
   php_value always_populate_raw_post_data -1
   php_value default_charset 'UTF-8'
   php_value output_buffering 0
@@ -10,4 +9,4 @@
 </IfModule>
 #### DO NOT CHANGE ANYTHING ABOVE THIS LINE ####
 
-# Content that should change the hash in the root folder
+# Content that should change the hash in the root folder

tests/data/setUploadLimit/htaccess

@@ -24,7 +24,6 @@
 php_value upload_max_filesize 513M
 php_value post_max_size 513M
 php_value memory_limit 512M
-php_value mbstring.func_overload 0
 php_value always_populate_raw_post_data -1
 php_value default_charset 'UTF-8'
 php_value output_buffering off

tests/data/setUploadLimit/user.ini

@@ -1,7 +1,6 @@
 upload_max_filesize=513M
 post_max_size=513M
 memory_limit=512M
-mbstring.func_overload=0
 always_populate_raw_post_data=-1
 default_charset='UTF-8'
 output_buffering=off

tests/lib/IntegrityCheck/CheckerTest.php

@@ -585,10 +585,10 @@ public function testWriteCoreSignatureWithInvalidModifiedHtaccess(): void {
 	public function testWriteCoreSignatureWithValidModifiedHtaccess(): void {
 		$expectedSignatureFileData = '{
     "hashes": {
-        ".htaccess": "7e6a7a4d8ee4f3fbc45dd579407c643471575a9d127d1c75f6d0a49e80766c3c587104b2139ef76d2a4bffce3f45777900605aaa49519c9532909b71e5030227",
+        ".htaccess": "b1a6a9fbb85417f3f461e654f1a8ae56a131fe54e4257b2b8b7ba6b3fedd55b83c0df20550cd6c52bd3a96d148a5a3c4ea24d99dca5d45a644491e56ad99df8e",
         "subfolder\/.htaccess": "2c57b1e25050e11dc3ae975832f378c452159f7b69f818e47eeeafadd6ba568517461dcb4d843b90b906cd7c89d161bc1b89dff8e3ae0eb6f5088508c47befd1"
     },
-    "signature": "YVwQvl9Dh8UebCumfgzFxfz3NiZJLmYG8oJVTfEBhulI4KXBnTG1jZTprf4XxG2XIriEYAZXsoXpu9xWsUFe9QfdncwoEpqJtGq7l6aVDTofX5Be5b03MQFJr4cflgllqW77QZ84D9O9qWF\/vNDAofXcwrzT04CxLDhyQgTCgYUnRjG9pnuP\/gtbDKbTjRvxhTyfg3T0Phv1+XAvpTPnH2q5A+1+LmiqziUJ1sMipsKo+jQP614eCi9qjmqhHIgLRgcuOBvsi4g5WUcdcAIZ6qLt5gm2Y3r6rKNVchosU9ZydMUTfjuejDbVwE2fNH5UUnV57fQBxwg9CfX7iFHqKv1bfv5Zviu12paShgWCB12uR3iH\/3lmTJn8K5Xqit3G4eymFaJ5IChdUThBp\/jhQSI2r8sPcZDYSJ\/UZKuFnezFdKhEBd5hMXe8aKAd6ijGDjLARksFuqpi1sS8llC5K1Q+DzktSL\/o64TY4Vuvykiwe\/BAk2SkL9voOtrvU7vfDBcuCPbDJnSBBC0ESpcXeClTBIn6xZ9WaxqoS7sinE\/kUwtWsRd04I7d79\/ouotyNb+mBhTuRsZT12p\/gn4JHXXNUAIpTwchYzGxbfNJ4kxnYBFZWVmvsSqOLFZu1yi5BP3ktA9yhFyWIa5659azRFEKRdXpVHtQVa4IgdhxEqA=",
+    "signature": "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",
     "certificate": "-----BEGIN CERTIFICATE-----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\r\nV204fGUkJqW5CrKy3P3XvY9X\r\n-----END CERTIFICATE-----"
 }';
 		$this->environmentHelper
@@ -688,10 +688,10 @@ public function testVerifyCoreSignatureWithValidModifiedHtaccessSignatureData():
 			->willReturn(\OC::$SERVERROOT . '/tests/data/integritycheck/htaccessWithValidModifiedContent');
 		$signatureDataFile = '{
     "hashes": {
-        ".htaccess": "7e6a7a4d8ee4f3fbc45dd579407c643471575a9d127d1c75f6d0a49e80766c3c587104b2139ef76d2a4bffce3f45777900605aaa49519c9532909b71e5030227",
+        ".htaccess": "b1a6a9fbb85417f3f461e654f1a8ae56a131fe54e4257b2b8b7ba6b3fedd55b83c0df20550cd6c52bd3a96d148a5a3c4ea24d99dca5d45a644491e56ad99df8e",
         "subfolder\/.htaccess": "2c57b1e25050e11dc3ae975832f378c452159f7b69f818e47eeeafadd6ba568517461dcb4d843b90b906cd7c89d161bc1b89dff8e3ae0eb6f5088508c47befd1"
     },
-    "signature": "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",
+    "signature": "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",
     "certificate": "-----BEGIN CERTIFICATE-----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\r\nV204fGUkJqW5CrKy3P3XvY9X\r\n-----END CERTIFICATE-----"
 }';
 		$this->fileAccessHelper