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' ), ), ), ) ) ); register_rest_route( 'akismet/v1', '/webhook', array( 'methods' => WP_REST_Server::CREATABLE, 'callback' => array( 'Akismet_REST_API', 'receive_webhook' ), 'permission_callback' => array( 'Akismet_REST_API', 'remote_call_permission_callback' ), ) ); } /** * 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(); $request_args = array( 'blog' => get_option( 'home' ), 'key' => $api_key, 'from' => $interval, ); $request_args = apply_filters( 'akismet_request_args', $request_args, 'get-stats' ); $response = Akismet::http_post( Akismet::build_query( $request_args ), '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 ) { $request_args = array( 'key' => $key, 'blog' => get_option( 'home' ), ); $request_args = apply_filters( 'akismet_request_args', $request_args, 'verify-key' ); $response = Akismet::http_post( Akismet::build_query( $request_args ), '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 ); } /** * Process a webhook request from the Akismet servers. * * @param WP_REST_Request $request * @return WP_Error|WP_REST_Response */ public static function receive_webhook( $request ) { Akismet::log( array( 'Webhook request received', $request->get_body() ) ); /** * The request body should look like this: * array( * 'key' => '1234567890abcd', * 'endpoint' => '[comment-check|submit-ham|submit-spam]', * 'comments' => array( * array( * 'guid' => '[...]', * 'result' => '[true|false]', * 'comment_author' => '[...]', * [...] * ), * array( * 'guid' => '[...]', * [...], * ), * [...] * ) * ) * * Multiple comments can be included in each request, and the only truly required * field for each is the guid, although it would be friendly to include also * comment_post_ID, comment_parent, and comment_author_email, if possible to make * searching easier. */ // The response will include statuses for the result of each comment that was supplied. $response = array( 'comments' => array(), ); $endpoint = $request->get_param( 'endpoint' ); switch ( $endpoint ) { case 'comment-check': $webhook_comments = $request->get_param( 'comments' ); if ( ! is_array( $webhook_comments ) ) { return rest_ensure_response( new WP_Error( 'malformed_request', __( 'The \'comments\' parameter must be an array.', 'akismet' ), array( 'status' => 400 ) ) ); } foreach ( $webhook_comments as $webhook_comment ) { $guid = $webhook_comment['guid']; if ( ! $guid ) { // Without the GUID, we can't be sure that we're matching the right comment. // We'll make it a rule that any comment without a GUID is ignored intentionally. continue; } // Search on the fields that are indexed in the comments table, plus the GUID. // The GUID is the only thing we really need to search on, but comment_meta // is not indexed in a useful way if there are many many comments. This // should help narrow it down first. $queryable_fields = array( 'comment_post_ID' => 'post_id', 'comment_parent' => 'parent', 'comment_author_email' => 'author_email', ); $query_args = array(); $query_args['status'] = 'any'; $query_args['meta_key'] = 'akismet_guid'; $query_args['meta_value'] = $guid; foreach ( $queryable_fields as $queryable_field => $wp_comment_query_field ) { if ( isset( $webhook_comment[ $queryable_field ] ) ) { $query_args[ $wp_comment_query_field ] = $webhook_comment[ $queryable_field ]; } } $comments_query = new WP_Comment_Query( $query_args ); $comments = $comments_query->comments; if ( ! $comments ) { // Unexpected, although the comment could have been deleted since being submitted. Akismet::log( 'Webhook failed: no matching comment found.' ); $response['comments'][ $guid ] = array( 'status' => 'error', 'message' => __( 'Could not find matching comment.', 'akismet' ) ); continue; } if ( count( $comments ) > 1 ) { // Two comments shouldn't be able to match the same GUID. Akismet::log( 'Webhook failed: multiple matching comments found.', $comments ); $response['comments'][ $guid ] = array( 'status' => 'error', 'message' => __( 'Multiple comments matched request.', 'akismet' ) ); continue; } else { // We have one single match, as hoped for. Akismet::log( 'Found matching comment.', $comments ); $current_status = wp_get_comment_status( $comments[0] ); $result = $webhook_comment['result']; if ( 'true' == $result ) { Akismet::log( 'Comment should be spam' ); // The comment should be classified as spam. if ( 'spam' != $current_status ) { // The comment is not classified as spam. If Akismet was the one to act on it, move it to spam. if ( Akismet::last_comment_status_change_came_from_akismet( $comments[0]->comment_ID ) ) { Akismet::log( 'Comment is not spam; marking as spam.' ); wp_spam_comment( $comments[0] ); Akismet::update_comment_history( $comments[0]->comment_ID, '', 'webhook-spam' ); } else { Akismet::log( 'Comment is not spam, but it has already been manually handled by some other process.' ); Akismet::update_comment_history( $comments[0]->comment_ID, '', 'webhook-spam-noaction' ); } } } else if ( 'false' == $result ) { Akismet::log( 'Comment should be ham' ); // The comment should be classified as ham. if ( 'spam' == $current_status ) { Akismet::log( 'Comment is spam.' ); // The comment is classified as spam. If Akismet was the one to label it as spam, unspam it. if ( Akismet::last_comment_status_change_came_from_akismet( $comments[0]->comment_ID ) ) { Akismet::log( 'Akismet marked it as spam; unspamming.' ); wp_unspam_comment( $comments[0] ); akismet::update_comment_history( $comments[0]->comment_ID, '', 'webhook-ham' ); } else { Akismet::log( 'Comment is not spam, but it has already been manually handled by some other process.' ); Akismet::update_comment_history( $comments[0]->comment_ID, '', 'webhook-ham-noaction' ); } } } $response['comments'][ $guid ] = array( 'status' => 'success' ); } } break; case 'submit-ham': case 'submit-spam': // Nothing to do for submit-ham or submit-spam. break; default: // Unsupported endpoint. break; } /** * Allow plugins to do things with a successfully processed webhook request, like logging. * * @since 5.3.2 * * @param WP_REST_Request $request The REST request object. */ do_action( 'akismet_webhook_received', $request ); Akismet::log( 'Done processing webhook.' ); return rest_ensure_response( $response ); } } Aluminium prices unlikely to recover in 2023 on slack demand | Modern Business International
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Saturday, June 14, 2025
HomeMarkets NewsAluminium prices unlikely to recover in 2023 on slack demand

Aluminium prices unlikely to recover in 2023 on slack demand

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With aluminium demand likely to be slack in view of a slow recovery in the global economy, the metal’s prices are unlikely to recover this year after having declined 6 per cent since January.

“The LME aluminium spot price is forecast to fall by 13 per cent year-on-year in 2023, to average $2,365 a tonne. Slowing world growth is expected to be a significant driver of lower aluminium prices,” said Australia’s Office of the Chief Economist (AOCE).

Research agency BMI, a unit of Fitch Solutions, said a slow recovery of Mainland China’s commodity-intensive sectors and a poor global demand outlook has put pressure on prices in recent months, which is likely to continue for the remainder of 2023.

Price outlook

ING Think, the economic and financial analysis wing of Dutch multinational financial services firm ING, said the fundamental picture for aluminium has not changed. “In Europe, however, we don’t expect major restarts before 2025, while demand for aluminium remains weak,” it said. 

Taking stock of the situation, BMI said, “We are making a downward revision to our aluminium price forecast for 2023 to an annual average of $2,300/tonne from $2,500 previously.”

Currently, 3-month aluminium contracts on the London Metal Exchange (LME) is ruling at $2,178 a tonne, while in spot trade, it is quoted at $2,068. 

The prices of the metal, widely used in aerospace applications, packaging, automobiles, railroad cars and construction, are hovering near a 5-week low after Chinese July data disappointed the market. 

After peaking in January on hopes that the rebound in the Chinese economy will be strong, aluminium prices have been on a steady downslope. 

Chinese exports slip

“Prices have averaged $2,327/tonne in the year-to-date as of August 21, lower than the average of $2,711/tonne seen in full year 2022,” BMI said. “Chinese exports of aluminium products did not improve in July, signalling weak demand for aluminium products globally,” ING Think said. 

A contraction in the  commodity-intensive manufacturing sector can be attributed to weak export demand outside China due to the poor global economic environment, BMI said. “As a result, we expect to see declines in the factory activity of aluminium-intensive products weigh on internal demand in the short term and put downward pressure on prices,” the research agency said.

Major contributor to bearish trend

BMI said China has been the major contributor to aluminium price weakness. China is the largest consumer of aluminium by far and is expected to take up 62.9 per cent of global aluminium demand in 2023. 

AOCE said sluggish primary aluminium demand in Europe and tight monetary conditions in major economies have outweighed the impacts on aluminium prices of supply disruptions in China’s Yunnan province.

Shanghai Metal Market News said China’s export trend is “slightly lower than expected”, indicating a steady but weak outlook ahead.

BMI said besides slack demand for goods containing aluminium, the construction sector, which makes up 30 per cent of the metal’s demand in China, is also struggling. Last week, China’s property giant Evergrande filed for bankruptcy in a New York court raising concerns over the construction sector’s path ahead. 

Modest stimulus package

ING Think said 81 per cent of LME aluminium inventories were of Russian origin. “The large share of Russian aluminium sitting in LME warehouses will raise concerns over whether LME aluminium prices are increasingly reflecting the price of Russian-origin aluminium,” it said.

On the supply side, BMI estimates Chinese production to rise 2.2 per cent year-on-year (y-o-y) to 41.3 million tonnes (mt) in 2023 compared with a 4 per cent y-o-y rise to 40.5 mt in 2022. 

“While we remain hopeful that the Chinese government will introduce stimulus that will boost commodities demand, we note downside risks to this view are building. Even then, any stimulus is likely to be modest, in light of financial risks facing the Chinese economy, and insufficient to propel metal prices much further,” BMI said.

However, aluminium prices are likely to rule high in the long term as a shift to the green economy world is expected to support demand.





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