- Fixed bug #53603 (ZipArchive should quiet stat errors).

#It is unclear if url_stat handlers should emit a warning in case
#PHP_STREAM_URL_STAT_QUIET is not specified and the resource does
#not exist. Most url_stat handlers never emit messages; the plain
#one does only so in the extraordinary event of an open_basedir
#restriction.
#But in case, php_stat uses PHP_STREAM_URL_STAT_QUIET for the
#FS_EXISTS, which suggests that mere checks on file existence are
#supposed to use this flag (arguably).
#The downside is that important diagnostic messages might be
#omitted.

ext/zip/php_zip.c

@@ -196,7 +196,7 @@ static int php_zip_extract_file(struct zip * za, char *dest, char *file, int fil
 	}
 
 	/* let see if the path already exists */
-	if (php_stream_stat_path(file_dirname_fullpath, &ssb) < 0) {
+	if (php_stream_stat_path_ex(file_dirname_fullpath, PHP_STREAM_URL_STAT_QUIET, &ssb, NULL) < 0) {
 
 #if defined(PHP_WIN32) && (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION == 1)
 		char *e;
@@ -2379,7 +2379,7 @@ static ZIPARCHIVE_METHOD(extractTo)
 		RETURN_FALSE;
 	}
 
-    if (php_stream_stat_path(pathto, &ssb) < 0) {
+    if (php_stream_stat_path_ex(pathto, PHP_STREAM_URL_STAT_QUIET, &ssb, NULL) < 0) {
         ret = php_stream_mkdir(pathto, 0777,  PHP_STREAM_MKDIR_RECURSIVE, NULL);
         if (!ret) {
             RETURN_FALSE;

ext/zip/tests/bug53603.phpt

@@ -0,0 +1,38 @@
+--TEST--
+Bug #53603 (ZipArchive should quiet stat errors)
+--SKIPIF--
+<?php
+if(!extension_loaded('zip')) die('skip');
+?>
+--FILE--
+<?php
+
+class TestStream {
+	function url_stat($path, $flags) {
+		if (!($flags & STREAM_URL_STAT_QUIET))
+			trigger_error("not quiet");
+		return array();
+	}
+}
+
+stream_wrapper_register("teststream", "TestStream");
+
+$dirname = dirname(__FILE__) . '/';
+$file = $dirname . 'test_with_comment.zip';
+$zip = new ZipArchive;
+if ($zip->open($file) !== TRUE) {
+	echo "open failed.\n";
+	exit('failed');
+}
+
+$a = $zip->extractTo('teststream://test');
+var_dump($a);
+
+--EXPECTF--
+Warning: ZipArchive::extractTo(teststream://test/foo): failed to open stream: "TestStream::stream_open" call failed in %s on line %d
+
+Warning: ZipArchive::extractTo(teststream://test/bar): failed to open stream: "TestStream::stream_open" call failed in %s on line %d
+
+Warning: ZipArchive::extractTo(teststream://test/foobar/baz): failed to open stream: "TestStream::stream_open" call failed in %s on line %d
+bool(true)
+