From 3828b2426be742f5cc80512af26b5c15806f4122 Mon Sep 17 00:00:00 2001
From: Gina Peter Banyard <girgias@php.net>
Date: Thu, 16 Oct 2025 00:56:10 +0100
Subject: [PATCH] ext/phar: Refactor phar_create_default_stub()

---
 ext/phar/phar.c          | 50 ++++++++++++++++++++++------------------
 ext/phar/phar_internal.h |  2 +-
 ext/phar/phar_object.c   | 12 +++++-----
 3 files changed, 35 insertions(+), 29 deletions(-)

diff --git a/ext/phar/phar.c b/ext/phar/phar.c
index cec38aa3353..f31a4f84122 100644
--- a/ext/phar/phar.c
+++ b/ext/phar/phar.c
@@ -2453,42 +2453,48 @@ static int phar_flush_clean_deleted_apply(zval *zv) /* {{{ */
 
 #include "stub.h" /* Generated phar_get_stub() function from makestub.php script */
 
-zend_string *phar_create_default_stub(const char *index_php, const char *web_index, char **error) /* {{{ */
+zend_string *phar_create_default_stub(const zend_string *php_index_str, const zend_string *web_index_str, char **error) /* {{{ */
 {
-	size_t index_len, web_len;
+	const char *php_index;
+	const char *web_index;
+	size_t php_len, web_len;
 
 	if (error) {
 		*error = NULL;
 	}
 
-	if (!index_php) {
-		index_php = "index.php";
+	if (!php_index_str) {
+		php_index = "index.php";
+		php_len = strlen("index.php");
+	} else {
+		php_index = ZSTR_VAL(php_index_str);
+		php_len = ZSTR_LEN(php_index_str);
+		if (php_len > 400) {
+			/* ridiculous size not allowed for index.php startup filename */
+			if (error) {
+				spprintf(error, 0, "Illegal filename passed in for stub creation, was %zd characters long, and only 400 or less is allowed", php_len);
+			}
+			return NULL;
+		}
 	}
 
-	if (!web_index) {
+	if (!web_index_str) {
 		web_index = "index.php";
-	}
+		web_len = strlen("index.php");
+	} else {
+		web_index = ZSTR_VAL(web_index_str);
+		web_len = ZSTR_LEN(web_index_str);
 
-	index_len = strlen(index_php);
-	web_len = strlen(web_index);
-
-	if (index_len > 400) {
-		/* ridiculous size not allowed for index.php startup filename */
-		if (error) {
-			spprintf(error, 0, "Illegal filename passed in for stub creation, was %zd characters long, and only 400 or less is allowed", index_len);
+		if (web_len > 400) {
+			/* ridiculous size not allowed for index.php startup filename */
+			if (error) {
+				spprintf(error, 0, "Illegal web filename passed in for stub creation, was %zd characters long, and only 400 or less is allowed", web_len);
+			}
 			return NULL;
 		}
 	}
 
-	if (web_len > 400) {
-		/* ridiculous size not allowed for index.php startup filename */
-		if (error) {
-			spprintf(error, 0, "Illegal web filename passed in for stub creation, was %zd characters long, and only 400 or less is allowed", web_len);
-			return NULL;
-		}
-	}
-
-	return phar_get_stub(index_php, web_index, index_len+1, web_len+1);
+	return phar_get_stub(php_index, web_index, php_len+1, web_len+1);
 }
 /* }}} */
 
diff --git a/ext/phar/phar_internal.h b/ext/phar/phar_internal.h
index 232ba579d7f..bd3d7158c8e 100644
--- a/ext/phar/phar_internal.h
+++ b/ext/phar/phar_internal.h
@@ -415,7 +415,7 @@ zend_result phar_verify_signature(php_stream *fp, size_t end_of_phar, uint32_t s
 ZEND_ATTRIBUTE_NONNULL zend_result phar_create_signature(phar_archive_data *phar, php_stream *fp, char **signature, size_t *signature_length, char **error);
 
 /* utility functions */
-zend_string *phar_create_default_stub(const char *index_php, const char *web_index, char **error);
+zend_string *phar_create_default_stub(const zend_string *php_index_str, const zend_string *web_index_str, char **error);
 const char *phar_decompress_filter(const phar_entry_info *entry, bool return_unknown);
 const char *phar_compress_filter(const phar_entry_info *entry, bool return_unknown);
 
diff --git a/ext/phar/phar_object.c b/ext/phar/phar_object.c
index e1c18cd4bac..58c61404518 100644
--- a/ext/phar/phar_object.c
+++ b/ext/phar/phar_object.c
@@ -946,11 +946,11 @@ PHP_METHOD(Phar, interceptFileFuncs)
  */
 PHP_METHOD(Phar, createDefaultStub)
 {
-	char *index = NULL, *webindex = NULL, *error;
+	zend_string *index = NULL, *webindex = NULL;
+	char *error;
 	zend_string *stub;
-	size_t index_len = 0, webindex_len = 0;
 
-	if (zend_parse_parameters(ZEND_NUM_ARGS(), "|p!p!", &index, &index_len, &webindex, &webindex_len) == FAILURE) {
+	if (zend_parse_parameters(ZEND_NUM_ARGS(), "|P!P!", &index, &webindex) == FAILURE) {
 		RETURN_THROWS();
 	}
 
@@ -2914,12 +2914,11 @@ PHP_METHOD(Phar, setStub)
  */
 PHP_METHOD(Phar, setDefaultStub)
 {
-	char *index = NULL, *webindex = NULL, *error = NULL;
+	zend_string *index = NULL, *webindex = NULL;
 	zend_string *stub = NULL;
-	size_t index_len = 0, webindex_len = 0;
 	bool created_stub = false;
 
-	if (zend_parse_parameters(ZEND_NUM_ARGS(), "|s!s!", &index, &index_len, &webindex, &webindex_len) == FAILURE) {
+	if (zend_parse_parameters(ZEND_NUM_ARGS(), "|P!P!", &index, &webindex) == FAILURE) {
 		RETURN_THROWS();
 	}
 
@@ -2947,6 +2946,7 @@ PHP_METHOD(Phar, setDefaultStub)
 		RETURN_THROWS();
 	}
 
+	char *error = NULL;
 	if (!phar_obj->archive->is_tar && !phar_obj->archive->is_zip) {
 		stub = phar_create_default_stub(index, webindex, &error);