[6.0.4] Share external mount in CentOS

[ser72]

Expected Behavior
Files are shared without error

Actual Behavior
When going to link, error appears, when share with user, nothing happens

NOTE
This occurs on CentOS Linux!!!

Steps

1. Configure ownCloud on CentOS
2. Create an external share for a user
   In this example it was done under the Personal page
   An SFTP mount to a Linux machine (tested both CentOS Linux and Ubuntu Linux as SFTP server -- both exhibited the issue)
3. Place a file in the SFTP mount
4. Share as link
5. Navigate to the link
   Following error appears

6. Share file with a different user
7. Login as that user and attempt to view file.
   When select file in the Shared folder, nothing happens

LOGS

{"app":"PHP","message":"Undefined index:  at \/var\/www\/html\/owncloud604\/apps
\/files_sharing\/lib\/sharedstorage.php#76","level":3,"time":"2014-07-30T10:53:5
0+00:00"}
{"app":"PHP","message":"Call to a member function getMountPoint() on a non-objec
t at \/var\/www\/html\/owncloud604\/apps\/files_sharing\/lib\/sharedstorage.php#
76","level":3,"time":"2014-07-30T10:53:50+00:00"}
{"app":"PHP","message":"Undefined index:  at \/var\/www\/html\/owncloud604\/apps
\/files_sharing\/lib\/sharedstorage.php#76","level":3,"time":"2014-07-30T10:53:5
1+00:00"}
{"app":"PHP","message":"Call to a member function getMountPoint() on a non-objec
t at \/var\/www\/html\/owncloud604\/apps\/files_sharing\/lib\/sharedstorage.php#
76","level":3,"time":"2014-07-30T10:53:51+00:00"}
{"app":"PHP","message":"Undefined index:  at \/var\/www\/html\/owncloud604\/apps
\/files_sharing\/lib\/sharedstorage.php#76","level":3,"time":"2014-07-30T10:53:5
9+00:00"}
{"app":"PHP","message":"Call to a member function getMountPoint() on a non-objec
t at \/var\/www\/html\/owncloud604\/apps\/files_sharing\/lib\/sharedstorage.php#
76","level":3,"time":"2014-07-30T10:53:59+00:00"}
{"app":"PHP","message":"Undefined index:  at \/var\/www\/html\/owncloud604\/apps
\/files_sharing\/lib\/sharedstorage.php#76","level":3,"time":"2014-07-30T10:54:0
0+00:00"}
{"app":"PHP","message":"Call to a member function getMountPoint() on a non-objec
t at \/var\/www\/html\/owncloud604\/apps\/files_sharing\/lib\/sharedstorage.php#
76","level":3,"time":"2014-07-30T10:54:00+00:00"}

Tests

1. Tested with ownCloud on Ubuntu server and could not reproduce
2. Tested with oC on Ubuntu server and CentOS as SFTP server -- could not reproduce
3. Tested with oC on CentOS and CentOS as SFTP server -- BROKEN
4. Tested with oC on CentOS and Ubuntu as SFTP server -- BROKEN

[ser72]

@butonic Any updates?

[butonic]

CentOS is heavily using SELinux. By default it prevents apache to open new network connections, resulting in an owncloud log entry like

{"reqId":"53c0344d850ae","app":"PHP","message":"Cannot connect to hostname.tld. Error 13. Permission denied at \/var\/www\/html\/owncloud\/apps\/files_external\/3rdparty\/phpseclib\/phpseclib\/Net\/SSH2.php#807","level":3,"time":"2014-07-11T19:00:29+00:00","method":"POST","url":"\/owncloud\/index.php\/apps\/files_external\/ajax\/addMountPoint.php"}

To fix that, as root execute

$ setsebool -P httpd_can_network_connect=1

see http://stackoverflow.com/questions/24537090/unable-to-connect-with-net-ssh2-from-inside-apache

[butonic]

Closing as won't fix, because this is well documented CentOS behaviour.

[ser72]

@butonic:

Entered the above command and still have the issue.

Logs:

[root@ser-centos data]# more owncloud.log
{"reqId":"53e4c36ec6887","app":"OC\\Files\\Cache\\Scanner","message":"!!! Path '
files_trashbin\/files' is not readable !!!","level":0,"time":"2014-08-08T12:32:4
6+00:00","method":"GET","url":"\/owncloud604\/index.php\/apps\/files"}
{"reqId":"53e4c37a362d8","app":"share","message":"could not resolve linkItem","l
evel":0,"time":"2014-08-08T12:32:58+00:00","method":"GET","url":"\/owncloud604\/
public.php?service=files&t=68fca666e757a84fe739f102d33bea74"}

[butonic]

@ser72 and I cannot reproduce the issue in OC7. Seems the sharing overhaul also fixed this issue.

[butonic]

I can reproduce the issue in OC6.0.4 on debian.

[butonic]

Issue already described in #8167 (comment)
Has been fixed by @Xenopathic in #9635 for stable6, which was merged 24days ago. And I can confirm stable6 HEAD is fixed.

closing as duplicate