Rights access to the folders of the project

Test environment

When we just want to test wallabag, we just run the command make run to start our wallabag instance and everything will go smoothly because the user who started the project can access to the current folder naturally, without any problem.

Production environment

As soon as we use Apache or Nginx to access to our wallabag instance, and not from the command make run to start it, we should take care to grant the good rights on the good folders to keep safe all the folders of the project.

To do so, the folder name, known as DocumentRoot (for apache) or root (for Nginx), has to be absolutely accessible by the Apache/Nginx user. Its name is generally www-data, apache or nobody (depending on linux system used).

So the folder /var/www/wallabag/web has to be accessible by this last one. But this may not be enough if we just care about this folder, because we could meet a blank page or get an error 500 when trying to access to the homepage of the project.

This is due to the fact that we will need to grant the same rights access on the folder /var/www/wallabag/var like those we gave on the folder /var/www/wallabag/web. Thus, we fix this problem with the following command:

chown -R www-data:www-data /var/www/wallabag/var

It has to be the same for the following folders

  • /var/www/wallabag/bin/
  • /var/www/wallabag/app/config/
  • /var/www/wallabag/vendor/
  • /var/www/wallabag/data/

by entering

chown -R www-data:www-data /var/www/wallabag/bin
chown -R www-data:www-data /var/www/wallabag/app/config
chown -R www-data:www-data /var/www/wallabag/vendor
chown -R www-data:www-data /var/www/wallabag/data/

otherwise, sooner or later you will see these error messages:

Unable to write to the "bin" directory.
file_put_contents(app/config/parameters.yml): failed to open stream: Permission denied
file_put_contents(/.../wallabag/vendor/autoload.php): failed to open stream: Permission denied

Additional rules for SELinux

If SELinux is enabled on your system, you will need to configure additional contexts in order for wallabag to function properly. To check if SELinux is enabled, simply enter the following:

getenforce

This will return Enforcing if SELinux is enabled. Creating a new context involves the following syntax:

semanage fcontext -a -t <context type> <full path>

For example:

semanage fcontext -a -t httpd_sys_content_t "/var/www/wallabag(/.*)?"

This will recursively apply the httpd_sys_content_t context to the wallabag directory and all underlying files and folders. The following rules are needed:

Full path Context
/var/www/wallabag(/.*)? httpd_sys_content_t
/var/www/wallabag/data(/.*)? httpd_sys_rw_content_t
/var/www/wallabag/var/logs(/.*)? httpd_log_t
/var/www/wallabag/var/cache(/.*)? httpd_cache_t

After creating these contexts, enter the following in order to apply your rules:

restorecon -R -v /var/www/wallabag

You can check contexts in a directory by typing ls -lZ and you can see all of your current rules with semanage fcontext -l -C.

If you're installing the preconfigured latest-v2-package, then an additional rule is needed during the initial setup:

semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/wallabag/var"

After you successfully access your wallabag and complete the initial setup, this context can be removed:

    semanage fcontext -d -t httpd_sys_rw_content_t "/var/www/wallabag/var"
    retorecon -R -v /var/www/wallabag/var

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