class Akismet_REST_API {
/**
* Register the REST API routes.
*/
public static function init() {
if ( ! function_exists( 'register_rest_route' ) ) {
// The REST API wasn't integrated into core until 4.4, and we support 4.0+ (for now).
return false;
}
register_rest_route( 'akismet/v1', '/key', array(
array(
'methods' => WP_REST_Server::READABLE,
'permission_callback' => array( 'Akismet_REST_API', 'privileged_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'get_key' ),
), array(
'methods' => WP_REST_Server::EDITABLE,
'permission_callback' => array( 'Akismet_REST_API', 'privileged_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'set_key' ),
'args' => array(
'key' => array(
'required' => true,
'type' => 'string',
'sanitize_callback' => array( 'Akismet_REST_API', 'sanitize_key' ),
'description' => __( 'A 12-character Akismet API key. Available at akismet.com/get/', 'akismet' ),
),
),
), array(
'methods' => WP_REST_Server::DELETABLE,
'permission_callback' => array( 'Akismet_REST_API', 'privileged_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'delete_key' ),
)
) );
register_rest_route( 'akismet/v1', '/settings/', array(
array(
'methods' => WP_REST_Server::READABLE,
'permission_callback' => array( 'Akismet_REST_API', 'privileged_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'get_settings' ),
),
array(
'methods' => WP_REST_Server::EDITABLE,
'permission_callback' => array( 'Akismet_REST_API', 'privileged_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'set_boolean_settings' ),
'args' => array(
'akismet_strictness' => array(
'required' => false,
'type' => 'boolean',
'description' => __( 'If true, Akismet will automatically discard the worst spam automatically rather than putting it in the spam folder.', 'akismet' ),
),
'akismet_show_user_comments_approved' => array(
'required' => false,
'type' => 'boolean',
'description' => __( 'If true, show the number of approved comments beside each comment author in the comments list page.', 'akismet' ),
),
),
)
) );
register_rest_route( 'akismet/v1', '/stats', array(
'methods' => WP_REST_Server::READABLE,
'permission_callback' => array( 'Akismet_REST_API', 'privileged_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'get_stats' ),
'args' => array(
'interval' => array(
'required' => false,
'type' => 'string',
'sanitize_callback' => array( 'Akismet_REST_API', 'sanitize_interval' ),
'description' => __( 'The time period for which to retrieve stats. Options: 60-days, 6-months, all', 'akismet' ),
'default' => 'all',
),
),
) );
register_rest_route( 'akismet/v1', '/stats/(?P[\w+])', array(
'args' => array(
'interval' => array(
'description' => __( 'The time period for which to retrieve stats. Options: 60-days, 6-months, all', 'akismet' ),
'type' => 'string',
),
),
array(
'methods' => WP_REST_Server::READABLE,
'permission_callback' => array( 'Akismet_REST_API', 'privileged_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'get_stats' ),
)
) );
register_rest_route( 'akismet/v1', '/alert', array(
array(
'methods' => WP_REST_Server::READABLE,
'permission_callback' => array( 'Akismet_REST_API', 'remote_call_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'get_alert' ),
'args' => array(
'key' => array(
'required' => false,
'type' => 'string',
'sanitize_callback' => array( 'Akismet_REST_API', 'sanitize_key' ),
'description' => __( 'A 12-character Akismet API key. Available at akismet.com/get/', 'akismet' ),
),
),
),
array(
'methods' => WP_REST_Server::EDITABLE,
'permission_callback' => array( 'Akismet_REST_API', 'remote_call_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'set_alert' ),
'args' => array(
'key' => array(
'required' => false,
'type' => 'string',
'sanitize_callback' => array( 'Akismet_REST_API', 'sanitize_key' ),
'description' => __( 'A 12-character Akismet API key. Available at akismet.com/get/', 'akismet' ),
),
),
),
array(
'methods' => WP_REST_Server::DELETABLE,
'permission_callback' => array( 'Akismet_REST_API', 'remote_call_permission_callback' ),
'callback' => array( 'Akismet_REST_API', 'delete_alert' ),
'args' => array(
'key' => array(
'required' => false,
'type' => 'string',
'sanitize_callback' => array( 'Akismet_REST_API', 'sanitize_key' ),
'description' => __( 'A 12-character Akismet API key. Available at akismet.com/get/', 'akismet' ),
),
),
)
) );
}
/**
* Get the current Akismet API key.
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function get_key( $request = null ) {
return rest_ensure_response( Akismet::get_api_key() );
}
/**
* Set the API key, if possible.
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function set_key( $request ) {
if ( defined( 'WPCOM_API_KEY' ) ) {
return rest_ensure_response( new WP_Error( 'hardcoded_key', __( 'This site\'s API key is hardcoded and cannot be changed via the API.', 'akismet' ), array( 'status'=> 409 ) ) );
}
$new_api_key = $request->get_param( 'key' );
if ( ! self::key_is_valid( $new_api_key ) ) {
return rest_ensure_response( new WP_Error( 'invalid_key', __( 'The value provided is not a valid and registered API key.', 'akismet' ), array( 'status' => 400 ) ) );
}
update_option( 'wordpress_api_key', $new_api_key );
return self::get_key();
}
/**
* Unset the API key, if possible.
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function delete_key( $request ) {
if ( defined( 'WPCOM_API_KEY' ) ) {
return rest_ensure_response( new WP_Error( 'hardcoded_key', __( 'This site\'s API key is hardcoded and cannot be deleted.', 'akismet' ), array( 'status'=> 409 ) ) );
}
delete_option( 'wordpress_api_key' );
return rest_ensure_response( true );
}
/**
* Get the Akismet settings.
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function get_settings( $request = null ) {
return rest_ensure_response( array(
'akismet_strictness' => ( get_option( 'akismet_strictness', '1' ) === '1' ),
'akismet_show_user_comments_approved' => ( get_option( 'akismet_show_user_comments_approved', '1' ) === '1' ),
) );
}
/**
* Update the Akismet settings.
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function set_boolean_settings( $request ) {
foreach ( array(
'akismet_strictness',
'akismet_show_user_comments_approved',
) as $setting_key ) {
$setting_value = $request->get_param( $setting_key );
if ( is_null( $setting_value ) ) {
// This setting was not specified.
continue;
}
// From 4.7+, WP core will ensure that these are always boolean
// values because they are registered with 'type' => 'boolean',
// but we need to do this ourselves for prior versions.
$setting_value = Akismet_REST_API::parse_boolean( $setting_value );
update_option( $setting_key, $setting_value ? '1' : '0' );
}
return self::get_settings();
}
/**
* Parse a numeric or string boolean value into a boolean.
*
* @param mixed $value The value to convert into a boolean.
* @return bool The converted value.
*/
public static function parse_boolean( $value ) {
switch ( $value ) {
case true:
case 'true':
case '1':
case 1:
return true;
case false:
case 'false':
case '0':
case 0:
return false;
default:
return (bool) $value;
}
}
/**
* Get the Akismet stats for a given time period.
*
* Possible `interval` values:
* - all
* - 60-days
* - 6-months
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function get_stats( $request ) {
$api_key = Akismet::get_api_key();
$interval = $request->get_param( 'interval' );
$stat_totals = array();
$response = Akismet::http_post( Akismet::build_query( array( 'blog' => get_option( 'home' ), 'key' => $api_key, 'from' => $interval ) ), 'get-stats' );
if ( ! empty( $response[1] ) ) {
$stat_totals[$interval] = json_decode( $response[1] );
}
return rest_ensure_response( $stat_totals );
}
/**
* Get the current alert code and message. Alert codes are used to notify the site owner
* if there's a problem, like a connection issue between their site and the Akismet API,
* invalid requests being sent, etc.
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function get_alert( $request ) {
return rest_ensure_response( array(
'code' => get_option( 'akismet_alert_code' ),
'message' => get_option( 'akismet_alert_msg' ),
) );
}
/**
* Update the current alert code and message by triggering a call to the Akismet server.
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function set_alert( $request ) {
delete_option( 'akismet_alert_code' );
delete_option( 'akismet_alert_msg' );
// Make a request so the most recent alert code and message are retrieved.
Akismet::verify_key( Akismet::get_api_key() );
return self::get_alert( $request );
}
/**
* Clear the current alert code and message.
*
* @param WP_REST_Request $request
* @return WP_Error|WP_REST_Response
*/
public static function delete_alert( $request ) {
delete_option( 'akismet_alert_code' );
delete_option( 'akismet_alert_msg' );
return self::get_alert( $request );
}
private static function key_is_valid( $key ) {
$response = Akismet::http_post(
Akismet::build_query(
array(
'key' => $key,
'blog' => get_option( 'home' )
)
),
'verify-key'
);
if ( $response[1] == 'valid' ) {
return true;
}
return false;
}
public static function privileged_permission_callback() {
return current_user_can( 'manage_options' );
}
/**
* For calls that Akismet.com makes to the site to clear outdated alert codes, use the API key for authorization.
*/
public static function remote_call_permission_callback( $request ) {
$local_key = Akismet::get_api_key();
return $local_key && ( strtolower( $request->get_param( 'key' ) ) === strtolower( $local_key ) );
}
public static function sanitize_interval( $interval, $request, $param ) {
$interval = trim( $interval );
$valid_intervals = array( '60-days', '6-months', 'all', );
if ( ! in_array( $interval, $valid_intervals ) ) {
$interval = 'all';
}
return $interval;
}
public static function sanitize_key( $key, $request, $param ) {
return trim( $key );
}
}
COMPARATIVE ANALYTICAL DATA OF AIR QUALITY IN BANJA LUKA CITY » STED Journal
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Nebojša Knežević1 , Igor Milunović2
1 University of Banja Luka, Faculty of Mining, Aleja Kozarskog odreda 1, 79 000 Prijedor, Bosnia and Herzegovina, knezneso@gmail.com2 University of Banja Luka, Faculty of Science, Mladena Stojanovića 2, 78 000 Banja Luka, Bosnia and Herzegovina
REVIEW SCIENTIFIC PAPER
ISSN 2637-2150 e-ISSN 2637-2614 UDC 504.3.054(497.6):[614.71:628.8 DOI 10.7251/STED2201039K COBISS.RS-ID 136254977
Paper Submited: 28.02.2022. Paper Accepted: 05.04.2022. Paper Published: 30.05.2022. http://stedj-univerzitetpim.com
Coresponding Author: Nebojša Knežević, University of Banja Luka, Faculty of Mining, Aleja Kozarskog odreda 1, 79 000 Prijedor, Bosnia and Herzegovina, knezneso@gmail.com
ABSTRACT
In order to efficiently manage air quality at the location of Banja Luka city, a functional system for monitoring and controlling the degree of air pollution, that is to say air quality monitoring, has been established. Air quality monitoring is performed by the Mobile Ecological Laboratory (MEL) at three locations in the settlements of Paprikovac, Borik and the City Centre. The objectives of air quality monitoring can be divided into two groups: the first group consists of the objectives of the monitoring program for a medium-industrialised city with an existing or potential problem of air pollution. The second group consists of special air quality monitoring objectives, whose nature is such that their implementation is a matter of free choice, and usually more complex solutions are required. The basic air quality monitoring program should provide the essential data needed to develop air quality standards and enable the development of an acceptable air quality protection program. The goal of the basic air quality monitoring program is: to monitor long-term trends in air pollution in order to determine the degree of improvement or deterioration of air quality in urban and industrial environments. Measurements are usually performed at multiple measurement sites by collecting and analysing a 24-hour sample. Measurement data for at least five consecutive years are required to determine air pollution trends. Air quality is assessed based on the obtained data and on the basis of comparison with standards. In accordance with the above, this paper presents the air quality through the values of the following pollutants: SO2 , O3 , CO, NO2 , PM10 and Soot. The air quality of Banja Luka (from the aspect of the presence of sulphur dioxide and soot) was analysed, before and after the war, based on the available literature.
Key words: air pollution, air quality, pollutants.