How can PHP be used to manage access permissions to files and folders based on LDAP user groups?

To manage access permissions to files and folders based on LDAP user groups using PHP, you can first authenticate users against LDAP and retrieve their group memberships. Then, you can compare the user's group memberships with the required permissions for the file or folder to determine if they have access. 

// Authenticate user against LDAP
$ldap_server = "ldap.example.com";
$ldap_port = 389;
$ldap_dn = "cn=admin,dc=example,dc=com";
$ldap_password = "password";

$ldap_connection = ldap_connect($ldap_server, $ldap_port);
ldap_bind($ldap_connection, $ldap_dn, $ldap_password);

$user_dn = "uid=user,ou=users,dc=example,dc=com";
$user_password = "user_password";

if (ldap_bind($ldap_connection, $user_dn, $user_password)) {
    // Retrieve user's group memberships
    $user_groups = ldap_get_values($ldap_connection, $user_dn, "memberOf");

    // Check if user belongs to required group for access
    $required_group = "cn=admins,ou=groups,dc=example,dc=com";
    if (in_array($required_group, $user_groups)) {
        // Grant access to file or folder
        echo "Access granted!";
    } else {
        // Deny access
        echo "Access denied!";
    }
} else {
    echo "LDAP authentication failed.";
}

ldap_close($ldap_connection);

Keywords

PHP LDAP access permissions files folders

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