/
qa-registration-blocker.php
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/
qa-registration-blocker.php
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<?php
/*
Question2Answer by Gideon Greenspan and contributors
http://www.question2answer.org/
File: qa-plugin/example-page/qa-example-page.php
Description: Page module class for example page plugin
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
More about this license: http://www.question2answer.org/license.php
*/
if ( !defined( 'QA_VERSION' ) ) { // don't allow this page to be requested directly from browser
header( 'Location: ../../' );
exit;
}
class qas_registration_blocker
{
public function option_default( $option )
{
switch ( $option ) {
case qas_ubl_opt::PLUGIN_ACTIVE :
return 1;
default :
return null;
}
}
public function admin_form( &$qa_content )
{
$saved = false;
if ( qa_clicked( qas_ubl_opt::SAVE_OPTIONS ) ) {
qa_opt( qas_ubl_opt::PLUGIN_ACTIVE, (int) qa_post_text( qas_ubl_opt::PLUGIN_ACTIVE ) );
qa_opt( qas_ubl_opt::BANNED_USERNAMES, qa_post_text( qas_ubl_opt::BANNED_USERNAMES ) );
qa_opt( qas_ubl_opt::BANNED_EMAIL_DOMAINS, qa_post_text( qas_ubl_opt::BANNED_EMAIL_DOMAINS ) );
qa_opt( qas_ubl_opt::DONT_ALLOW_TO_CHANGE_EMAIL, (int) qa_post_text( qas_ubl_opt::DONT_ALLOW_TO_CHANGE_EMAIL ) );
qa_opt( qas_ubl_opt::DONT_ALLOW_TO_CHANGE_HANDLE, (int) qa_post_text( qas_ubl_opt::DONT_ALLOW_TO_CHANGE_HANDLE ) );
$saved = true;
}
qa_set_display_rules( $qa_content, array(
qas_ubl_opt::BANNED_USERNAMES => qas_ubl_opt::PLUGIN_ACTIVE,
qas_ubl_opt::BANNED_EMAIL_DOMAINS => qas_ubl_opt::PLUGIN_ACTIVE,
qas_ubl_opt::DONT_ALLOW_TO_CHANGE_EMAIL => qas_ubl_opt::PLUGIN_ACTIVE,
qas_ubl_opt::DONT_ALLOW_TO_CHANGE_HANDLE => qas_ubl_opt::PLUGIN_ACTIVE,
) );
$fields = array_merge(
$this->get_activate_form_elem(),
$this->get_banned_username_field(),
$this->get_banned_email_domain_field(),
$this->get_dont_allow_email_field_change(),
$this->get_dont_allow_handle_field_change()
);
return array(
'ok' => ( $saved && !isset( $error ) ) ? $this->translate( 'settings_saved' ) : null,
'fields' => $fields,
'buttons' => $this->get_buttons(),
);
}
public function filter_email( &$email, $olduser )
{
$banned_ids = explode( ',', qa_opt( qas_ubl_opt::BANNED_EMAIL_DOMAINS ) );
$banned_ids = array_map( 'trim', $banned_ids );
$email_domain = $this->get_domain_from_email( $email );
if ( in_array( $email_domain, $banned_ids ) )
return $this->translate( 'email_domain_not_allowed' );
if ( qa_opt( qas_ubl_opt::DONT_ALLOW_TO_CHANGE_EMAIL ) && isset( $olduser ) && qa_get_logged_in_level() < QA_USER_LEVEL_EXPERT ) {
return $this->translate( 'not_allowed_to_change_email' );
}
}
public function filter_handle( &$handle, $olduser )
{
$banned_usernames = explode( ',', qa_opt( qas_ubl_opt::BANNED_USERNAMES ) );
$banned_usernames = array_map( 'trim', $banned_usernames );
if ( in_array( $handle, $banned_usernames ) )
return $this->translate( 'username_not_allowed' );
if ( qa_opt( qas_ubl_opt::DONT_ALLOW_TO_CHANGE_HANDLE ) && isset( $olduser ) && qa_get_logged_in_level() < QA_USER_LEVEL_EXPERT ) {
return $this->translate( 'not_allowed_to_change_username' );
}
}
private function validate_post_email( &$errors, $post )
{
if ( @$post['notify'] && strlen( @$post['email'] ) ) {
$error = $this->filter_email( $post['email'], null );
if ( isset( $error ) )
$errors['email'] = $error;
}
}
private function get_domain_from_email( $email )
{
return substr( strrchr( $email, "@" ), 1 );
}
private function translate( $indentifier )
{
return qa_lang_html( 'qas_regb/' . $indentifier );
}
private function get_buttons()
{
return array(
array(
'label' => qa_lang_html( 'admin/save_options_button' ),
'tags' => 'name="' . qas_ubl_opt::SAVE_OPTIONS . '"',
),
);
}
private function get_activate_form_elem()
{
return array( array(
'label' => $this->translate( 'activate_plugin' ),
'tags' => 'name="' . qas_ubl_opt::PLUGIN_ACTIVE . '" id="' . qas_ubl_opt::PLUGIN_ACTIVE . '"',
'value' => qa_opt( qas_ubl_opt::PLUGIN_ACTIVE ),
'type' => 'checkbox',
) );
}
private function get_dont_allow_email_field_change()
{
return array( array(
'id' => qas_ubl_opt::DONT_ALLOW_TO_CHANGE_EMAIL,
'label' => $this->translate( 'dont_allow_ch_email' ),
'tags' => 'name="' . qas_ubl_opt::DONT_ALLOW_TO_CHANGE_EMAIL . '"',
'value' => qa_opt( qas_ubl_opt::DONT_ALLOW_TO_CHANGE_EMAIL ),
'type' => 'checkbox',
) );
}
private function get_dont_allow_handle_field_change()
{
return array( array(
'id' => qas_ubl_opt::DONT_ALLOW_TO_CHANGE_HANDLE,
'label' => $this->translate( 'dont_allow_ch_handle' ),
'tags' => 'name="' . qas_ubl_opt::DONT_ALLOW_TO_CHANGE_HANDLE . '"',
'value' => qa_opt( qas_ubl_opt::DONT_ALLOW_TO_CHANGE_HANDLE ),
'type' => 'checkbox',
) );
}
private function get_banned_username_field()
{
return array( array(
'id' => qas_ubl_opt::BANNED_USERNAMES,
'label' => $this->translate( 'banned_usernames' ),
'note' => $this->translate( 'banned_usernames_note' ),
'tags' => 'name="' . qas_ubl_opt::BANNED_USERNAMES . '"',
'value' => qa_opt( qas_ubl_opt::BANNED_USERNAMES ),
'type' => 'textarea',
'rows' => 10,
) );
}
private function get_banned_email_domain_field()
{
return array( array(
'id' => qas_ubl_opt::BANNED_EMAIL_DOMAINS,
'label' => $this->translate( 'banned_email_domains' ),
'note' => $this->translate( 'banned_email_domains_note' ),
'tags' => 'name="' . qas_ubl_opt::BANNED_EMAIL_DOMAINS . '"',
'value' => qa_opt( qas_ubl_opt::BANNED_EMAIL_DOMAINS ),
'type' => 'textarea',
'rows' => 10,
) );
}
}
/*
Omit PHP closing tag to help avoid accidental output
*/