Fri, 10 Apr 2026 09:20:59 +0000 https://bugs.horde.org/ticket/8669 ssh2 VFS module stat() cache needs to be flushed in read() before checking file size The remote file is able to be successfully retrieved by the ssh2 VFS module and stored in a local temp file. However, the "$size = filesize($file);" line in the read() function returns the size of the local temp file as 0 which in turn results in no file content being returned. This is caused by calling certain other PHP function(s) (which rely on the underlying OS stat() function) on the temp file prior to it actually being populated with remote content. The details of the first stat() on the temp file are cached in the PHP stat cache, so even though the temp file subsequently gets populated with content, the cache returns data for the temp file which is stale. On a more general note, this type of bug seems like it may be relevant to any filesystem-based VFS modules, so it may be wise to audit the use of the functions listed here in the "Affected functions" list: http://us2.php.net/manual/en/function.clearstatcache.php and check if calls to clearstatcache() are required in other places within Horde as well. Thu, 29 Oct 2009 18:12:15 +0000 https://bugs.horde.org/ticket/8669#t56477 Seems my patch didn't make it. Thu, 29 Oct 2009 18:20:07 +0000 https://bugs.horde.org/ticket/8669#t56479 Changes have been made in CVS for this ticket: Clear the stat cache before reading the filesize of a temp file that may already be cached. Bug: 8669 Submitted by: lstewart (at) room52 (dot) net http://cvs.horde.org/diff.php/framework/VFS/lib/VFS/ssh2.php?rt=horde&r1=1.15&r2=1.16&ty=u Sun, 01 Nov 2009 02:28:54 +0000 https://bugs.horde.org/ticket/8669#t56489 Committed - nice catch! Sun, 01 Nov 2009 02:29:47 +0000 https://bugs.horde.org/ticket/8669#t56490