addGroup()

<?php
/*
 @Filename : addGroup.php
 @Description : Adds a group to the Permissions file, including name, permissions, and inheritance(s)
 Could be useful for admins working on control panels :)
 @Written by Pr4w for Bukkit.org
 @Usage : addGroup('/opt/mc/plugins/permissionsBukkit/config.yml', 'GroupName', 'permission.node: true, other.permission.node: true, not.allowed: false', 'Group1, Group2, Group3');

 Have fun :)
*/

// Including the Spyc Yaml Parser, change this to wherever you want to have it
@require_once('spyc.php');



function addGroup($file, $groupname, $rawpermissions, $inheritance = false) {

    // Load YAML sauce
    $yaml = Spyc::YAMLLoad(@file_get_contents($file));

    // Check to see if the file was correctly loaded or not
    if (!$yaml) {
        die (" Yaml file doesn't exist/could not be found ! ");
    }

    // There's probably a cleaner way of doing this but..
    // Turn the $rawpermissions string into a $permission[name] = true/false array
    foreach (explode(", ", $rawpermissions) as $perm) {
        list ($key, $value) = explode(": ", $perm, 2);
        $permissions[$key] = $value;
    }

    // If inheritance is specified, split all different groups into an array
    // And create the new group
    // This is extremely messy, and buggy, will clean up as soon as I can think of a way of doing it
    if ($inheritance != false) {
        $inheritance = explode(", ", $inheritance);
        foreach ($inheritance as $s) {
            if (!array_key_exists($s, $yaml['groups'])) {
                die (" Group $s can't be inherited, as it does not exist ! ");
            }
        }
        $newGroup = array ( $groupname => array ( 'permissions' => $permissions, 'inheritance' => $inheritance ));
    } else {
        $newGroup = array ( $groupname => array ( 'permissions' => $permissions ));
    }

    // Add the new group to the YAML array
    $yaml['groups'] = array_merge($yaml['groups'], $newGroup);
    $yaml = Spyc::YAMLDump($yaml, 4);

    // Fix some formatting errors that Permissions won't like
    // I'm having a bit of a brainfart, can't figure out an easier way to do this..
    $digits = array (" 0:", " 1:", " 2:", " 3:", " 4:", " 5:", " 6:", " 7:", " 8:", " 9:");
    $yaml = str_replace($digits, " -", $yaml);
    // Same here, without this, the Yaml is output as :
    // permission.node: 'true'
    // Which doesn't work, because of the ''
    // This is because in the array, true/false are strings, and not boolean
    $yaml = str_replace("'true'", "true", $yaml);
    $yaml = str_replace("'false'", "false", $yaml);

    // Open the .yml file for writing
    $write = fopen($file, "w");

    // Check if file can be opened
    if (!$write) {
        die (" Could not open file $file ! ");
    }

    // Write to the file, and check if that works
    if (!fwrite($write, $yaml)) {
        die (" Could not write to file ! ");
    }
}
?>