Plug-ins in OJS-2.4.8-1

[drvenkatesanj]

Dear Friend,
After upgrading to OJS-2.4.8-1, we found that none of the import/export plugins working. Clicking them landed in a blank page. Due to this we could not able to submit doi to crossref.
Moreover the side bars in the page also disappeared along with all the blocks we set under Journal setup stage 5.

But all these things were working fine in localhost running on MAMP in my system. Things go weird when we upload the contents in the hosting space.

Kindly suggest us to solve this problem.

VJ.

[ctgraham]

The blank page will leave an error in your webserver’s error log which you can use to identify the problem:

When I click some button or follow some link, I'm left with a blank page. What do I do?

Check your webserver error log Usually, this indicates that a PHP error has occurred and the message has been sent to your web server or system log file. Check there – e.g. /var/log/apache/error.log, although the exact location will depend on your server configuration – for further details. Check your file permissions If you haven’t installed OJS yet, then the most likely cause is a problem with file permissions in your cache/ or cache/t_compile directories. See docs/README for information on…

This error may be displayed to the screen if you set display_errors in config.inc.php to “on”.

Post that error here, and we can help to troubleshoot.

[drvenkatesanj]

Dear Friend,
As suggested I made changes in the config.php file and captured the error displayed on the page.
Please see the attached error display captured below

ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-
39ad57a0a799a092b476f7b3d029e60d.php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-
1cfde42be2b25bdac1c9a16538de37a8.php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-
03b174b61510807426c2a2c128f6a86a.php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: unlink(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-list.php): Permission
denied In file: /webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 57 Stacktrace: Server info: OS:
Linux PHP Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-list.php): failed to
open stream: Permission denied In file: /webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86
Stacktrace: Server info: OS: Linux PHP Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server
version: 5.1.73
ojs2 has produced an error Message: USER ERROR: Smarty error: unable to write to $compile_dir
‘/webcorp1/www/corpusers/v/e/vensel.org/cache/t_compile’. Be sure $compile_dir is writable by the web server user. In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/lib/smarty/Smarty.class.php At line: 1093 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: USER ERROR: Smarty error: unable to write to $compile_dir
‘/webcorp1/www/corpusers/v/e/vensel.org/cache/t_compile’. Be sure $compile_dir is writable by the web server user. In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/lib/smarty/Smarty.class.php At line: 1093 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-localeaf1cd48677ffc63fcc9fbc520820bb6f.
php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-localefd8775eb0e300ffe8b09bc9aa449efb0.
php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-
9e19df87188c49e74348db94de352bf3.php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-localed361f6493b84f04da16487147dee41ca.
php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-
2fbbe635963c566bfacea5c8449ae019.php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-
61dc07b427ce97bc92a77478efafd6bc.php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: WARNING: fopen(/webcorp1/www/corpusers/v/e/vensel.org/cache/fc-locale-
96aaa80660bbcb2f60b6516cedd6c363.php): failed to open stream: Permission denied In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/classes/cache/FileCache.inc.php At line: 86 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: USER ERROR: Smarty error: unable to write to $compile_dir
‘/webcorp1/www/corpusers/v/e/vensel.org/cache/t_compile’. Be sure $compile_dir is writable by the web server user. In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/lib/smarty/Smarty.class.php At line: 1093 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: USER ERROR: Smarty error: unable to write to $compile_dir
‘/webcorp1/www/corpusers/v/e/vensel.org/cache/t_compile’. Be sure $compile_dir is writable by the web server user. In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/lib/smarty/Smarty.class.php At line: 1093 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73
ojs2 has produced an error Message: USER ERROR: Smarty error: unable to write to $compile_dir
‘/webcorp1/www/corpusers/v/e/vensel.org/cache/t_compile’. Be sure $compile_dir is writable by the web server user. In file:
/webcorp1/www/corpusers/v/e/vensel.org/lib/pkp/lib/smarty/Smarty.class.php At line: 1093 Stacktrace: Server info: OS: Linux PHP
Version: 5.4.7 Apache Version: Apache/2.4.3 (Unix) PHP/5.4.7 DB Driver: mysql DB server version: 5.1.73

---

[ctgraham]

This indicates that your “cache” directory is not writable by the webserver. File access permissions need to be set such that the user which is running your web daemon is able to read and write to all of the files and folders under your files_dir, “public”, and “cache” directories. See also:

PKP PLN Plugin ask for Archive_Tar PHP extension

Equally important to the numeric permissions is the file ownership. For example, ownership of apache:www with permissions of 750 means that the apache user can read, write and execute; anyone with the www group can read or execute; and the file is protected against access by anyone else. Note that “execute” means two entirely different things for directories than for files! In general, you want your permissions set such that your webserver can read and write (recursively) to config.inc.php’s …

PKP PLN Plugin ask for Archive_Tar PHP extension

Generally, the ownership of cache, public, and other web-writable directories should be your web user and the web-user’s primary group, for example apache:www-data. Permissions should probably be 750. The ownership of the other non-web-writable directories should be your user, with either the web user’s group, or with public execute permissions. For example: root:www-data with 750 or root:root with 755. Web-writable files would be the same, but without the execute permission: apache:www-…

[drvenkatesanj]

Thanks my Friend.
Finally I could able to solve the problem with all your inputs.
Now we set the permission to 777 for cache, public and files_dir.
Is it OK?

Sincerely,
VJ.

[ctgraham]

Permissions of 777 are almost never safe to use. I’ve tried re-writing my advice here:

How should file permissions be set?

There isn’t a straightforward answer because so much depends on your hosting environment. Start with your hosting provider’s documentation and support, or with your system administrator, and with the following instructions: How to set your permissions In general, you want your permissions set such that your webserver can read and write (recursively) to config.inc.php's files_dir, and to ./cache/, and ./public/. Optionally, for added features and reduced security, you can enable write to confi…