[wp-trac] [WordPress Trac] #33480: After upgrade to 4.3 unable to update plugins.

[WordPress Trac]

#33480: After upgrade to 4.3 unable to update plugins.
-----------------------------+-----------------------------
 Reporter:  jobst            |       Owner:
     Type:  defect (bug)     |      Status:  new
 Priority:  normal           |   Milestone:  4.3.1
Component:  Upgrade/Install  |     Version:  4.3
 Severity:  major            |  Resolution:
 Keywords:  needs-patch      |     Focuses:  administration
-----------------------------+-----------------------------

Comment (by jobst):

 It still is a permission problem:

 I have a file /SOMEPATH/wp-content/plugins/index.php
  - If I chmod that to 0640 I cannot write (below false)
  - If I chmod that to 0660 I CAN write (below true)

 {{{
  WP_Filesystem( array( 'hostname' => '127.0.0.1', 'username' =>
 'SOMEUSER', 'public_key' => '/PATH_TO_SOME_KEY.pub',
 'private_key'=>'/PATH_TO_SOME_KEY.priv') );
  global $wp_filesystem;
  error_log(WP_PLUGIN_DIR . '/index.php');
  $rc = var_export($wp_filesystem);
  error_log($rc);
  $rc = $wp_filesystem->is_writable( WP_PLUGIN_DIR . '/index.php');
  error_log(">".$rc."<");
 }}}

 Gotta play some hockey, back in a couple of hours.

 Jobst



 Replying to [comment:6 dd32]:
 > > The real issue is $this->clear_destination uses
 "is_writable/is_writeable" which is a PHP function running in the context
 of the user running apache (nobody in the case above), so obviously the
 files are NOT writeable and never should be!
 >
 > The SSH2 code uses the `ssh2.sftp://` wrapper which directs the checks
 to happen on the remote filesystem via the SSH connection. PHP is then
 running the permission checks against SOMEUSER not nobody.
 >
 > The problem here is that the `ssh2.sftp://` wrapper appears to be
 malfunctioning and always returning false, probably due to `stat` failing
 over that link - most likely due to a bug in either libssh or the
 interpretation of the server permissions.

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Ticket URL: <https://core.trac.wordpress.org/ticket/33480#comment:9>
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