akismet
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LICENSE.txt
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akismet.php
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class.akismet-admin.php
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class.akismet-cli.php
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class.akismet-rest-api.php
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class.akismet-widget.php
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class.akismet.php
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index.php
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readme.txt
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wrapper.php
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class.akismet.php
1497 lines
| 1 | <?php |
| 2 | |
| 3 | class Akismet { |
| 4 | const API_HOST = 'rest.akismet.com'; |
| 5 | const API_PORT = 80; |
| 6 | const MAX_DELAY_BEFORE_MODERATION_EMAIL = 86400; // One day in seconds |
| 7 | |
| 8 | private static $last_comment = ''; |
| 9 | private static $initiated = false; |
| 10 | private static $prevent_moderation_email_for_these_comments = array(); |
| 11 | private static $last_comment_result = null; |
| 12 | private static $comment_as_submitted_allowed_keys = array( 'blog' => '', 'blog_charset' => '', 'blog_lang' => '', 'blog_ua' => '', 'comment_agent' => '', 'comment_author' => '', 'comment_author_IP' => '', 'comment_author_email' => '', 'comment_author_url' => '', 'comment_content' => '', 'comment_date_gmt' => '', 'comment_tags' => '', 'comment_type' => '', 'guid' => '', 'is_test' => '', 'permalink' => '', 'reporter' => '', 'site_domain' => '', 'submit_referer' => '', 'submit_uri' => '', 'user_ID' => '', 'user_agent' => '', 'user_id' => '', 'user_ip' => '' ); |
| 13 | private static $is_rest_api_call = false; |
| 14 | |
| 15 | public static function init() { |
| 16 | if ( ! self::$initiated ) { |
| 17 | self::init_hooks(); |
| 18 | } |
| 19 | } |
| 20 | |
| 21 | /** |
| 22 | * Initializes WordPress hooks |
| 23 | */ |
| 24 | private static function init_hooks() { |
| 25 | self::$initiated = true; |
| 26 | |
| 27 | add_action( 'wp_insert_comment', array( 'Akismet', 'auto_check_update_meta' ), 10, 2 ); |
| 28 | add_filter( 'preprocess_comment', array( 'Akismet', 'auto_check_comment' ), 1 ); |
| 29 | add_filter( 'rest_pre_insert_comment', array( 'Akismet', 'rest_auto_check_comment' ), 1 ); |
| 30 | |
| 31 | add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments' ) ); |
| 32 | add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments_meta' ) ); |
| 33 | add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_orphaned_commentmeta' ) ); |
| 34 | add_action( 'akismet_schedule_cron_recheck', array( 'Akismet', 'cron_recheck' ) ); |
| 35 | |
| 36 | add_action( 'comment_form', array( 'Akismet', 'add_comment_nonce' ), 1 ); |
| 37 | |
| 38 | add_action( 'admin_head-edit-comments.php', array( 'Akismet', 'load_form_js' ) ); |
| 39 | add_action( 'comment_form', array( 'Akismet', 'load_form_js' ) ); |
| 40 | add_action( 'comment_form', array( 'Akismet', 'inject_ak_js' ) ); |
| 41 | add_filter( 'script_loader_tag', array( 'Akismet', 'set_form_js_async' ), 10, 3 ); |
| 42 | |
| 43 | add_filter( 'comment_moderation_recipients', array( 'Akismet', 'disable_moderation_emails_if_unreachable' ), 1000, 2 ); |
| 44 | add_filter( 'pre_comment_approved', array( 'Akismet', 'last_comment_status' ), 10, 2 ); |
| 45 | |
| 46 | add_action( 'transition_comment_status', array( 'Akismet', 'transition_comment_status' ), 10, 3 ); |
| 47 | |
| 48 | // Run this early in the pingback call, before doing a remote fetch of the source uri |
| 49 | add_action( 'xmlrpc_call', array( 'Akismet', 'pre_check_pingback' ) ); |
| 50 | |
| 51 | // Jetpack compatibility |
| 52 | add_filter( 'jetpack_options_whitelist', array( 'Akismet', 'add_to_jetpack_options_whitelist' ) ); |
| 53 | add_action( 'update_option_wordpress_api_key', array( 'Akismet', 'updated_option' ), 10, 2 ); |
| 54 | add_action( 'add_option_wordpress_api_key', array( 'Akismet', 'added_option' ), 10, 2 ); |
| 55 | |
| 56 | add_action( 'comment_form_after', array( 'Akismet', 'display_comment_form_privacy_notice' ) ); |
| 57 | } |
| 58 | |
| 59 | public static function get_api_key() { |
| 60 | return apply_filters( 'akismet_get_api_key', defined('WPCOM_API_KEY') ? constant('WPCOM_API_KEY') : get_option('wordpress_api_key') ); |
| 61 | } |
| 62 | |
| 63 | public static function check_key_status( $key, $ip = null ) { |
| 64 | return self::http_post( Akismet::build_query( array( 'key' => $key, 'blog' => get_option( 'home' ) ) ), 'verify-key', $ip ); |
| 65 | } |
| 66 | |
| 67 | public static function verify_key( $key, $ip = null ) { |
| 68 | // Shortcut for obviously invalid keys. |
| 69 | if ( strlen( $key ) != 12 ) { |
| 70 | return 'invalid'; |
| 71 | } |
| 72 | |
| 73 | $response = self::check_key_status( $key, $ip ); |
| 74 | |
| 75 | if ( $response[1] != 'valid' && $response[1] != 'invalid' ) |
| 76 | return 'failed'; |
| 77 | |
| 78 | return $response[1]; |
| 79 | } |
| 80 | |
| 81 | public static function deactivate_key( $key ) { |
| 82 | $response = self::http_post( Akismet::build_query( array( 'key' => $key, 'blog' => get_option( 'home' ) ) ), 'deactivate' ); |
| 83 | |
| 84 | if ( $response[1] != 'deactivated' ) |
| 85 | return 'failed'; |
| 86 | |
| 87 | return $response[1]; |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Add the akismet option to the Jetpack options management whitelist. |
| 92 | * |
| 93 | * @param array $options The list of whitelisted option names. |
| 94 | * @return array The updated whitelist |
| 95 | */ |
| 96 | public static function add_to_jetpack_options_whitelist( $options ) { |
| 97 | $options[] = 'wordpress_api_key'; |
| 98 | return $options; |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * When the akismet option is updated, run the registration call. |
| 103 | * |
| 104 | * This should only be run when the option is updated from the Jetpack/WP.com |
| 105 | * API call, and only if the new key is different than the old key. |
| 106 | * |
| 107 | * @param mixed $old_value The old option value. |
| 108 | * @param mixed $value The new option value. |
| 109 | */ |
| 110 | public static function updated_option( $old_value, $value ) { |
| 111 | // Not an API call |
| 112 | if ( ! class_exists( 'WPCOM_JSON_API_Update_Option_Endpoint' ) ) { |
| 113 | return; |
| 114 | } |
| 115 | // Only run the registration if the old key is different. |
| 116 | if ( $old_value !== $value ) { |
| 117 | self::verify_key( $value ); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Treat the creation of an API key the same as updating the API key to a new value. |
| 123 | * |
| 124 | * @param mixed $option_name Will always be "wordpress_api_key", until something else hooks in here. |
| 125 | * @param mixed $value The option value. |
| 126 | */ |
| 127 | public static function added_option( $option_name, $value ) { |
| 128 | if ( 'wordpress_api_key' === $option_name ) { |
| 129 | return self::updated_option( '', $value ); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | public static function rest_auto_check_comment( $commentdata ) { |
| 134 | self::$is_rest_api_call = true; |
| 135 | |
| 136 | return self::auto_check_comment( $commentdata ); |
| 137 | } |
| 138 | |
| 139 | public static function auto_check_comment( $commentdata ) { |
| 140 | // If no key is configured, then there's no point in doing any of this. |
| 141 | if ( ! self::get_api_key() ) { |
| 142 | return $commentdata; |
| 143 | } |
| 144 | |
| 145 | self::$last_comment_result = null; |
| 146 | |
| 147 | $comment = $commentdata; |
| 148 | |
| 149 | $comment['user_ip'] = self::get_ip_address(); |
| 150 | $comment['user_agent'] = self::get_user_agent(); |
| 151 | $comment['referrer'] = self::get_referer(); |
| 152 | $comment['blog'] = get_option( 'home' ); |
| 153 | $comment['blog_lang'] = get_locale(); |
| 154 | $comment['blog_charset'] = get_option('blog_charset'); |
| 155 | $comment['permalink'] = get_permalink( $comment['comment_post_ID'] ); |
| 156 | |
| 157 | if ( ! empty( $comment['user_ID'] ) ) { |
| 158 | $comment['user_role'] = Akismet::get_user_roles( $comment['user_ID'] ); |
| 159 | } |
| 160 | |
| 161 | /** See filter documentation in init_hooks(). */ |
| 162 | $akismet_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) ); |
| 163 | $comment['akismet_comment_nonce'] = 'inactive'; |
| 164 | if ( $akismet_nonce_option == 'true' || $akismet_nonce_option == '' ) { |
| 165 | $comment['akismet_comment_nonce'] = 'failed'; |
| 166 | if ( isset( $_POST['akismet_comment_nonce'] ) && wp_verify_nonce( $_POST['akismet_comment_nonce'], 'akismet_comment_nonce_' . $comment['comment_post_ID'] ) ) |
| 167 | $comment['akismet_comment_nonce'] = 'passed'; |
| 168 | |
| 169 | // comment reply in wp-admin |
| 170 | if ( isset( $_POST['_ajax_nonce-replyto-comment'] ) && check_ajax_referer( 'replyto-comment', '_ajax_nonce-replyto-comment' ) ) |
| 171 | $comment['akismet_comment_nonce'] = 'passed'; |
| 172 | |
| 173 | } |
| 174 | |
| 175 | if ( self::is_test_mode() ) |
| 176 | $comment['is_test'] = 'true'; |
| 177 | |
| 178 | foreach( $_POST as $key => $value ) { |
| 179 | if ( is_string( $value ) ) |
| 180 | $comment["POST_{$key}"] = $value; |
| 181 | } |
| 182 | |
| 183 | foreach ( $_SERVER as $key => $value ) { |
| 184 | if ( ! is_string( $value ) ) { |
| 185 | continue; |
| 186 | } |
| 187 | |
| 188 | if ( preg_match( "/^HTTP_COOKIE/", $key ) ) { |
| 189 | continue; |
| 190 | } |
| 191 | |
| 192 | // Send any potentially useful $_SERVER vars, but avoid sending junk we don't need. |
| 193 | if ( preg_match( "/^(HTTP_|REMOTE_ADDR|REQUEST_URI|DOCUMENT_URI)/", $key ) ) { |
| 194 | $comment[ "$key" ] = $value; |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | $post = get_post( $comment['comment_post_ID'] ); |
| 199 | |
| 200 | if ( ! is_null( $post ) ) { |
| 201 | // $post can technically be null, although in the past, it's always been an indicator of another plugin interfering. |
| 202 | $comment[ 'comment_post_modified_gmt' ] = $post->post_modified_gmt; |
| 203 | } |
| 204 | |
| 205 | $response = self::http_post( Akismet::build_query( $comment ), 'comment-check' ); |
| 206 | |
| 207 | do_action( 'akismet_comment_check_response', $response ); |
| 208 | |
| 209 | $commentdata['comment_as_submitted'] = array_intersect_key( $comment, self::$comment_as_submitted_allowed_keys ); |
| 210 | $commentdata['akismet_result'] = $response[1]; |
| 211 | |
| 212 | if ( isset( $response[0]['x-akismet-pro-tip'] ) ) |
| 213 | $commentdata['akismet_pro_tip'] = $response[0]['x-akismet-pro-tip']; |
| 214 | |
| 215 | if ( isset( $response[0]['x-akismet-error'] ) ) { |
| 216 | // An error occurred that we anticipated (like a suspended key) and want the user to act on. |
| 217 | // Send to moderation. |
| 218 | self::$last_comment_result = '0'; |
| 219 | } |
| 220 | else if ( 'true' == $response[1] ) { |
| 221 | // akismet_spam_count will be incremented later by comment_is_spam() |
| 222 | self::$last_comment_result = 'spam'; |
| 223 | |
| 224 | $discard = ( isset( $commentdata['akismet_pro_tip'] ) && $commentdata['akismet_pro_tip'] === 'discard' && self::allow_discard() ); |
| 225 | |
| 226 | do_action( 'akismet_spam_caught', $discard ); |
| 227 | |
| 228 | if ( $discard ) { |
| 229 | // The spam is obvious, so we're bailing out early. |
| 230 | // akismet_result_spam() won't be called so bump the counter here |
| 231 | if ( $incr = apply_filters( 'akismet_spam_count_incr', 1 ) ) { |
| 232 | update_option( 'akismet_spam_count', get_option( 'akismet_spam_count' ) + $incr ); |
| 233 | } |
| 234 | |
| 235 | if ( self::$is_rest_api_call ) { |
| 236 | return new WP_Error( 'akismet_rest_comment_discarded', __( 'Comment discarded.', 'akismet' ) ); |
| 237 | } |
| 238 | else { |
| 239 | // Redirect back to the previous page, or failing that, the post permalink, or failing that, the homepage of the blog. |
| 240 | $redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : ( $post ? get_permalink( $post ) : home_url() ); |
| 241 | wp_safe_redirect( esc_url_raw( $redirect_to ) ); |
| 242 | die(); |
| 243 | } |
| 244 | } |
| 245 | else if ( self::$is_rest_api_call ) { |
| 246 | // The way the REST API structures its calls, we can set the comment_approved value right away. |
| 247 | $commentdata['comment_approved'] = 'spam'; |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | // if the response is neither true nor false, hold the comment for moderation and schedule a recheck |
| 252 | if ( 'true' != $response[1] && 'false' != $response[1] ) { |
| 253 | if ( !current_user_can('moderate_comments') ) { |
| 254 | // Comment status should be moderated |
| 255 | self::$last_comment_result = '0'; |
| 256 | } |
| 257 | |
| 258 | if ( ! wp_next_scheduled( 'akismet_schedule_cron_recheck' ) ) { |
| 259 | wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' ); |
| 260 | do_action( 'akismet_scheduled_recheck', 'invalid-response-' . $response[1] ); |
| 261 | } |
| 262 | |
| 263 | self::$prevent_moderation_email_for_these_comments[] = $commentdata; |
| 264 | } |
| 265 | |
| 266 | // Delete old comments daily |
| 267 | if ( ! wp_next_scheduled( 'akismet_scheduled_delete' ) ) { |
| 268 | wp_schedule_event( time(), 'daily', 'akismet_scheduled_delete' ); |
| 269 | } |
| 270 | |
| 271 | self::set_last_comment( $commentdata ); |
| 272 | self::fix_scheduled_recheck(); |
| 273 | |
| 274 | return $commentdata; |
| 275 | } |
| 276 | |
| 277 | public static function get_last_comment() { |
| 278 | return self::$last_comment; |
| 279 | } |
| 280 | |
| 281 | public static function set_last_comment( $comment ) { |
| 282 | if ( is_null( $comment ) ) { |
| 283 | self::$last_comment = null; |
| 284 | } |
| 285 | else { |
| 286 | // We filter it here so that it matches the filtered comment data that we'll have to compare against later. |
| 287 | // wp_filter_comment expects comment_author_IP |
| 288 | self::$last_comment = wp_filter_comment( |
| 289 | array_merge( |
| 290 | array( 'comment_author_IP' => self::get_ip_address() ), |
| 291 | $comment |
| 292 | ) |
| 293 | ); |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | // this fires on wp_insert_comment. we can't update comment_meta when auto_check_comment() runs |
| 298 | // because we don't know the comment ID at that point. |
| 299 | public static function auto_check_update_meta( $id, $comment ) { |
| 300 | // wp_insert_comment() might be called in other contexts, so make sure this is the same comment |
| 301 | // as was checked by auto_check_comment |
| 302 | if ( is_object( $comment ) && !empty( self::$last_comment ) && is_array( self::$last_comment ) ) { |
| 303 | if ( self::matches_last_comment( $comment ) ) { |
| 304 | |
| 305 | load_plugin_textdomain( 'akismet' ); |
| 306 | |
| 307 | // normal result: true or false |
| 308 | if ( self::$last_comment['akismet_result'] == 'true' ) { |
| 309 | update_comment_meta( $comment->comment_ID, 'akismet_result', 'true' ); |
| 310 | self::update_comment_history( $comment->comment_ID, '', 'check-spam' ); |
| 311 | if ( $comment->comment_approved != 'spam' ) |
| 312 | self::update_comment_history( |
| 313 | $comment->comment_ID, |
| 314 | '', |
| 315 | 'status-changed-'.$comment->comment_approved |
| 316 | ); |
| 317 | } |
| 318 | elseif ( self::$last_comment['akismet_result'] == 'false' ) { |
| 319 | update_comment_meta( $comment->comment_ID, 'akismet_result', 'false' ); |
| 320 | self::update_comment_history( $comment->comment_ID, '', 'check-ham' ); |
| 321 | // Status could be spam or trash, depending on the WP version and whether this change applies: |
| 322 | // https://core.trac.wordpress.org/changeset/34726 |
| 323 | if ( $comment->comment_approved == 'spam' || $comment->comment_approved == 'trash' ) { |
| 324 | if ( wp_blacklist_check($comment->comment_author, $comment->comment_author_email, $comment->comment_author_url, $comment->comment_content, $comment->comment_author_IP, $comment->comment_agent) ) |
| 325 | self::update_comment_history( $comment->comment_ID, '', 'wp-blacklisted' ); |
| 326 | else |
| 327 | self::update_comment_history( $comment->comment_ID, '', 'status-changed-'.$comment->comment_approved ); |
| 328 | } |
| 329 | } // abnormal result: error |
| 330 | else { |
| 331 | update_comment_meta( $comment->comment_ID, 'akismet_error', time() ); |
| 332 | self::update_comment_history( |
| 333 | $comment->comment_ID, |
| 334 | '', |
| 335 | 'check-error', |
| 336 | array( 'response' => substr( self::$last_comment['akismet_result'], 0, 50 ) ) |
| 337 | ); |
| 338 | } |
| 339 | |
| 340 | // record the complete original data as submitted for checking |
| 341 | if ( isset( self::$last_comment['comment_as_submitted'] ) ) |
| 342 | update_comment_meta( $comment->comment_ID, 'akismet_as_submitted', self::$last_comment['comment_as_submitted'] ); |
| 343 | |
| 344 | if ( isset( self::$last_comment['akismet_pro_tip'] ) ) |
| 345 | update_comment_meta( $comment->comment_ID, 'akismet_pro_tip', self::$last_comment['akismet_pro_tip'] ); |
| 346 | } |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | public static function delete_old_comments() { |
| 351 | global $wpdb; |
| 352 | |
| 353 | /** |
| 354 | * Determines how many comments will be deleted in each batch. |
| 355 | * |
| 356 | * @param int The default, as defined by AKISMET_DELETE_LIMIT. |
| 357 | */ |
| 358 | $delete_limit = apply_filters( 'akismet_delete_comment_limit', defined( 'AKISMET_DELETE_LIMIT' ) ? AKISMET_DELETE_LIMIT : 10000 ); |
| 359 | $delete_limit = max( 1, intval( $delete_limit ) ); |
| 360 | |
| 361 | /** |
| 362 | * Determines how many days a comment will be left in the Spam queue before being deleted. |
| 363 | * |
| 364 | * @param int The default number of days. |
| 365 | */ |
| 366 | $delete_interval = apply_filters( 'akismet_delete_comment_interval', 15 ); |
| 367 | $delete_interval = max( 1, intval( $delete_interval ) ); |
| 368 | |
| 369 | while ( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_id FROM {$wpdb->comments} WHERE DATE_SUB(NOW(), INTERVAL %d DAY) > comment_date_gmt AND comment_approved = 'spam' LIMIT %d", $delete_interval, $delete_limit ) ) ) { |
| 370 | if ( empty( $comment_ids ) ) |
| 371 | return; |
| 372 | |
| 373 | $wpdb->queries = array(); |
| 374 | |
| 375 | foreach ( $comment_ids as $comment_id ) { |
| 376 | do_action( 'delete_comment', $comment_id ); |
| 377 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
| 378 | } |
| 379 | |
| 380 | // Prepared as strings since comment_id is an unsigned BIGINT, and using %d will constrain the value to the maximum signed BIGINT. |
| 381 | $format_string = implode( ", ", array_fill( 0, count( $comment_ids ), '%s' ) ); |
| 382 | |
| 383 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->comments} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) ); |
| 384 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->commentmeta} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) ); |
| 385 | |
| 386 | clean_comment_cache( $comment_ids ); |
| 387 | do_action( 'akismet_delete_comment_batch', count( $comment_ids ) ); |
| 388 | } |
| 389 | |
| 390 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->comments ) ) // lucky number |
| 391 | $wpdb->query("OPTIMIZE TABLE {$wpdb->comments}"); |
| 392 | } |
| 393 | |
| 394 | public static function delete_old_comments_meta() { |
| 395 | global $wpdb; |
| 396 | |
| 397 | $interval = apply_filters( 'akismet_delete_commentmeta_interval', 15 ); |
| 398 | |
| 399 | # enforce a minimum of 1 day |
| 400 | $interval = absint( $interval ); |
| 401 | if ( $interval < 1 ) |
| 402 | $interval = 1; |
| 403 | |
| 404 | // akismet_as_submitted meta values are large, so expire them |
| 405 | // after $interval days regardless of the comment status |
| 406 | while ( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT m.comment_id FROM {$wpdb->commentmeta} as m INNER JOIN {$wpdb->comments} as c USING(comment_id) WHERE m.meta_key = 'akismet_as_submitted' AND DATE_SUB(NOW(), INTERVAL %d DAY) > c.comment_date_gmt LIMIT 10000", $interval ) ) ) { |
| 407 | if ( empty( $comment_ids ) ) |
| 408 | return; |
| 409 | |
| 410 | $wpdb->queries = array(); |
| 411 | |
| 412 | foreach ( $comment_ids as $comment_id ) { |
| 413 | delete_comment_meta( $comment_id, 'akismet_as_submitted' ); |
| 414 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
| 415 | } |
| 416 | |
| 417 | do_action( 'akismet_delete_commentmeta_batch', count( $comment_ids ) ); |
| 418 | } |
| 419 | |
| 420 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number |
| 421 | $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}"); |
| 422 | } |
| 423 | |
| 424 | // Clear out comments meta that no longer have corresponding comments in the database |
| 425 | public static function delete_orphaned_commentmeta() { |
| 426 | global $wpdb; |
| 427 | |
| 428 | $last_meta_id = 0; |
| 429 | $start_time = isset( $_SERVER['REQUEST_TIME_FLOAT'] ) ? $_SERVER['REQUEST_TIME_FLOAT'] : microtime( true ); |
| 430 | $max_exec_time = max( ini_get('max_execution_time') - 5, 3 ); |
| 431 | |
| 432 | while ( $commentmeta_results = $wpdb->get_results( $wpdb->prepare( "SELECT m.meta_id, m.comment_id, m.meta_key FROM {$wpdb->commentmeta} as m LEFT JOIN {$wpdb->comments} as c USING(comment_id) WHERE c.comment_id IS NULL AND m.meta_id > %d ORDER BY m.meta_id LIMIT 1000", $last_meta_id ) ) ) { |
| 433 | if ( empty( $commentmeta_results ) ) |
| 434 | return; |
| 435 | |
| 436 | $wpdb->queries = array(); |
| 437 | |
| 438 | $commentmeta_deleted = 0; |
| 439 | |
| 440 | foreach ( $commentmeta_results as $commentmeta ) { |
| 441 | if ( 'akismet_' == substr( $commentmeta->meta_key, 0, 8 ) ) { |
| 442 | delete_comment_meta( $commentmeta->comment_id, $commentmeta->meta_key ); |
| 443 | do_action( 'akismet_batch_delete_count', __FUNCTION__ ); |
| 444 | $commentmeta_deleted++; |
| 445 | } |
| 446 | |
| 447 | $last_meta_id = $commentmeta->meta_id; |
| 448 | } |
| 449 | |
| 450 | do_action( 'akismet_delete_commentmeta_batch', $commentmeta_deleted ); |
| 451 | |
| 452 | // If we're getting close to max_execution_time, quit for this round. |
| 453 | if ( microtime(true) - $start_time > $max_exec_time ) |
| 454 | return; |
| 455 | } |
| 456 | |
| 457 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number |
| 458 | $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}"); |
| 459 | } |
| 460 | |
| 461 | // how many approved comments does this author have? |
| 462 | public static function get_user_comments_approved( $user_id, $comment_author_email, $comment_author, $comment_author_url ) { |
| 463 | global $wpdb; |
| 464 | |
| 465 | if ( !empty( $user_id ) ) |
| 466 | return (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$wpdb->comments} WHERE user_id = %d AND comment_approved = 1", $user_id ) ); |
| 467 | |
| 468 | if ( !empty( $comment_author_email ) ) |
| 469 | return (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$wpdb->comments} WHERE comment_author_email = %s AND comment_author = %s AND comment_author_url = %s AND comment_approved = 1", $comment_author_email, $comment_author, $comment_author_url ) ); |
| 470 | |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | // get the full comment history for a given comment, as an array in reverse chronological order |
| 475 | public static function get_comment_history( $comment_id ) { |
| 476 | $history = get_comment_meta( $comment_id, 'akismet_history', false ); |
| 477 | if ( empty( $history ) || empty( $history[ 0 ] ) ) { |
| 478 | return false; |
| 479 | } |
| 480 | |
| 481 | /* |
| 482 | // To see all variants when testing. |
| 483 | $history[] = array( 'time' => 445856401, 'message' => 'Old versions of Akismet stored the message as a literal string in the commentmeta.', 'event' => null ); |
| 484 | $history[] = array( 'time' => 445856402, 'event' => 'recheck-spam' ); |
| 485 | $history[] = array( 'time' => 445856403, 'event' => 'check-spam' ); |
| 486 | $history[] = array( 'time' => 445856404, 'event' => 'recheck-ham' ); |
| 487 | $history[] = array( 'time' => 445856405, 'event' => 'check-ham' ); |
| 488 | $history[] = array( 'time' => 445856406, 'event' => 'wp-blacklisted' ); |
| 489 | $history[] = array( 'time' => 445856407, 'event' => 'report-spam' ); |
| 490 | $history[] = array( 'time' => 445856408, 'event' => 'report-spam', 'user' => 'sam' ); |
| 491 | $history[] = array( 'message' => 'sam reported this comment as spam (hardcoded message).', 'time' => 445856400, 'event' => 'report-spam', 'user' => 'sam' ); |
| 492 | $history[] = array( 'time' => 445856409, 'event' => 'report-ham', 'user' => 'sam' ); |
| 493 | $history[] = array( 'message' => 'sam reported this comment as ham (hardcoded message).', 'time' => 445856400, 'event' => 'report-ham', 'user' => 'sam' ); // |
| 494 | $history[] = array( 'time' => 445856410, 'event' => 'cron-retry-spam' ); |
| 495 | $history[] = array( 'time' => 445856411, 'event' => 'cron-retry-ham' ); |
| 496 | $history[] = array( 'time' => 445856412, 'event' => 'check-error' ); // |
| 497 | $history[] = array( 'time' => 445856413, 'event' => 'check-error', 'meta' => array( 'response' => 'The server was taking a nap.' ) ); |
| 498 | $history[] = array( 'time' => 445856414, 'event' => 'recheck-error' ); // Should not generate a message. |
| 499 | $history[] = array( 'time' => 445856415, 'event' => 'recheck-error', 'meta' => array( 'response' => 'The server was taking a nap.' ) ); |
| 500 | $history[] = array( 'time' => 445856416, 'event' => 'status-changedtrash' ); |
| 501 | $history[] = array( 'time' => 445856417, 'event' => 'status-changedspam' ); |
| 502 | $history[] = array( 'time' => 445856418, 'event' => 'status-changedhold' ); |
| 503 | $history[] = array( 'time' => 445856419, 'event' => 'status-changedapprove' ); |
| 504 | $history[] = array( 'time' => 445856420, 'event' => 'status-changed-trash' ); |
| 505 | $history[] = array( 'time' => 445856421, 'event' => 'status-changed-spam' ); |
| 506 | $history[] = array( 'time' => 445856422, 'event' => 'status-changed-hold' ); |
| 507 | $history[] = array( 'time' => 445856423, 'event' => 'status-changed-approve' ); |
| 508 | $history[] = array( 'time' => 445856424, 'event' => 'status-trash', 'user' => 'sam' ); |
| 509 | $history[] = array( 'time' => 445856425, 'event' => 'status-spam', 'user' => 'sam' ); |
| 510 | $history[] = array( 'time' => 445856426, 'event' => 'status-hold', 'user' => 'sam' ); |
| 511 | $history[] = array( 'time' => 445856427, 'event' => 'status-approve', 'user' => 'sam' ); |
| 512 | */ |
| 513 | |
| 514 | usort( $history, array( 'Akismet', '_cmp_time' ) ); |
| 515 | return $history; |
| 516 | } |
| 517 | |
| 518 | /** |
| 519 | * Log an event for a given comment, storing it in comment_meta. |
| 520 | * |
| 521 | * @param int $comment_id The ID of the relevant comment. |
| 522 | * @param string $message The string description of the event. No longer used. |
| 523 | * @param string $event The event code. |
| 524 | * @param array $meta Metadata about the history entry. e.g., the user that reported or changed the status of a given comment. |
| 525 | */ |
| 526 | public static function update_comment_history( $comment_id, $message, $event=null, $meta=null ) { |
| 527 | global $current_user; |
| 528 | |
| 529 | $user = ''; |
| 530 | |
| 531 | $event = array( |
| 532 | 'time' => self::_get_microtime(), |
| 533 | 'event' => $event, |
| 534 | ); |
| 535 | |
| 536 | if ( is_object( $current_user ) && isset( $current_user->user_login ) ) { |
| 537 | $event['user'] = $current_user->user_login; |
| 538 | } |
| 539 | |
| 540 | if ( ! empty( $meta ) ) { |
| 541 | $event['meta'] = $meta; |
| 542 | } |
| 543 | |
| 544 | // $unique = false so as to allow multiple values per comment |
| 545 | $r = add_comment_meta( $comment_id, 'akismet_history', $event, false ); |
| 546 | } |
| 547 | |
| 548 | public static function check_db_comment( $id, $recheck_reason = 'recheck_queue' ) { |
| 549 | global $wpdb; |
| 550 | |
| 551 | if ( ! self::get_api_key() ) { |
| 552 | return new WP_Error( 'akismet-not-configured', __( 'Akismet is not configured. Please enter an API key.', 'akismet' ) ); |
| 553 | } |
| 554 | |
| 555 | $c = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $id ), ARRAY_A ); |
| 556 | |
| 557 | if ( ! $c ) { |
| 558 | return new WP_Error( 'invalid-comment-id', __( 'Comment not found.', 'akismet' ) ); |
| 559 | } |
| 560 | |
| 561 | $c['user_ip'] = $c['comment_author_IP']; |
| 562 | $c['user_agent'] = $c['comment_agent']; |
| 563 | $c['referrer'] = ''; |
| 564 | $c['blog'] = get_option( 'home' ); |
| 565 | $c['blog_lang'] = get_locale(); |
| 566 | $c['blog_charset'] = get_option('blog_charset'); |
| 567 | $c['permalink'] = get_permalink($c['comment_post_ID']); |
| 568 | $c['recheck_reason'] = $recheck_reason; |
| 569 | |
| 570 | $c['user_role'] = ''; |
| 571 | if ( ! empty( $c['user_ID'] ) ) { |
| 572 | $c['user_role'] = Akismet::get_user_roles( $c['user_ID'] ); |
| 573 | } |
| 574 | |
| 575 | if ( self::is_test_mode() ) |
| 576 | $c['is_test'] = 'true'; |
| 577 | |
| 578 | $response = self::http_post( Akismet::build_query( $c ), 'comment-check' ); |
| 579 | |
| 580 | if ( ! empty( $response[1] ) ) { |
| 581 | return $response[1]; |
| 582 | } |
| 583 | |
| 584 | return false; |
| 585 | } |
| 586 | |
| 587 | public static function recheck_comment( $id, $recheck_reason = 'recheck_queue' ) { |
| 588 | add_comment_meta( $id, 'akismet_rechecking', true ); |
| 589 | |
| 590 | $api_response = self::check_db_comment( $id, $recheck_reason ); |
| 591 | |
| 592 | delete_comment_meta( $id, 'akismet_rechecking' ); |
| 593 | |
| 594 | if ( is_wp_error( $api_response ) ) { |
| 595 | // Invalid comment ID. |
| 596 | } |
| 597 | else if ( 'true' === $api_response ) { |
| 598 | wp_set_comment_status( $id, 'spam' ); |
| 599 | update_comment_meta( $id, 'akismet_result', 'true' ); |
| 600 | delete_comment_meta( $id, 'akismet_error' ); |
| 601 | delete_comment_meta( $id, 'akismet_delayed_moderation_email' ); |
| 602 | Akismet::update_comment_history( $id, '', 'recheck-spam' ); |
| 603 | } |
| 604 | elseif ( 'false' === $api_response ) { |
| 605 | update_comment_meta( $id, 'akismet_result', 'false' ); |
| 606 | delete_comment_meta( $id, 'akismet_error' ); |
| 607 | delete_comment_meta( $id, 'akismet_delayed_moderation_email' ); |
| 608 | Akismet::update_comment_history( $id, '', 'recheck-ham' ); |
| 609 | } |
| 610 | else { |
| 611 | // abnormal result: error |
| 612 | update_comment_meta( $id, 'akismet_result', 'error' ); |
| 613 | Akismet::update_comment_history( |
| 614 | $id, |
| 615 | '', |
| 616 | 'recheck-error', |
| 617 | array( 'response' => substr( $api_response, 0, 50 ) ) |
| 618 | ); |
| 619 | } |
| 620 | |
| 621 | return $api_response; |
| 622 | } |
| 623 | |
| 624 | public static function transition_comment_status( $new_status, $old_status, $comment ) { |
| 625 | |
| 626 | if ( $new_status == $old_status ) |
| 627 | return; |
| 628 | |
| 629 | if ( 'spam' === $new_status || 'spam' === $old_status ) { |
| 630 | // Clear the cache of the "X comments in your spam queue" count on the dashboard. |
| 631 | wp_cache_delete( 'akismet_spam_count', 'widget' ); |
| 632 | } |
| 633 | |
| 634 | # we don't need to record a history item for deleted comments |
| 635 | if ( $new_status == 'delete' ) |
| 636 | return; |
| 637 | |
| 638 | if ( !current_user_can( 'edit_post', $comment->comment_post_ID ) && !current_user_can( 'moderate_comments' ) ) |
| 639 | return; |
| 640 | |
| 641 | if ( defined('WP_IMPORTING') && WP_IMPORTING == true ) |
| 642 | return; |
| 643 | |
| 644 | // if this is present, it means the status has been changed by a re-check, not an explicit user action |
| 645 | if ( get_comment_meta( $comment->comment_ID, 'akismet_rechecking' ) ) |
| 646 | return; |
| 647 | |
| 648 | // Assumption alert: |
| 649 | // We want to submit comments to Akismet only when a moderator explicitly spams or approves it - not if the status |
| 650 | // is changed automatically by another plugin. Unfortunately WordPress doesn't provide an unambiguous way to |
| 651 | // determine why the transition_comment_status action was triggered. And there are several different ways by which |
| 652 | // to spam and unspam comments: bulk actions, ajax, links in moderation emails, the dashboard, and perhaps others. |
| 653 | // We'll assume that this is an explicit user action if certain POST/GET variables exist. |
| 654 | if ( |
| 655 | // status=spam: Marking as spam via the REST API or... |
| 656 | // status=unspam: I'm not sure. Maybe this used to be used instead of status=approved? Or the UI for removing from spam but not approving has been since removed?... |
| 657 | // status=approved: Unspamming via the REST API (Calypso) or... |
| 658 | ( isset( $_POST['status'] ) && in_array( $_POST['status'], array( 'spam', 'unspam', 'approved', ) ) ) |
| 659 | // spam=1: Clicking "Spam" underneath a comment in wp-admin and allowing the AJAX request to happen. |
| 660 | || ( isset( $_POST['spam'] ) && (int) $_POST['spam'] == 1 ) |
| 661 | // unspam=1: Clicking "Not Spam" underneath a comment in wp-admin and allowing the AJAX request to happen. Or, clicking "Undo" after marking something as spam. |
| 662 | || ( isset( $_POST['unspam'] ) && (int) $_POST['unspam'] == 1 ) |
| 663 | // comment_status=spam/unspam: It's unclear where this is happening. |
| 664 | || ( isset( $_POST['comment_status'] ) && in_array( $_POST['comment_status'], array( 'spam', 'unspam' ) ) ) |
| 665 | // action=spam: Choosing "Mark as Spam" from the Bulk Actions dropdown in wp-admin (or the "Spam it" link in notification emails). |
| 666 | // action=unspam: Choosing "Not Spam" from the Bulk Actions dropdown in wp-admin. |
| 667 | // action=spamcomment: Following the "Spam" link below a comment in wp-admin (not allowing AJAX request to happen). |
| 668 | // action=unspamcomment: Following the "Not Spam" link below a comment in wp-admin (not allowing AJAX request to happen). |
| 669 | || ( isset( $_GET['action'] ) && in_array( $_GET['action'], array( 'spam', 'unspam', 'spamcomment', 'unspamcomment', ) ) ) |
| 670 | // action=editedcomment: Editing a comment via wp-admin (and possibly changing its status). |
| 671 | || ( isset( $_POST['action'] ) && in_array( $_POST['action'], array( 'editedcomment' ) ) ) |
| 672 | // for=jetpack: Moderation via the WordPress app, Calypso, anything powered by the Jetpack connection. |
| 673 | || ( isset( $_GET['for'] ) && ( 'jetpack' == $_GET['for'] ) && ( ! defined( 'IS_WPCOM' ) || ! IS_WPCOM ) ) |
| 674 | // Certain WordPress.com API requests |
| 675 | || ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST ) |
| 676 | // WordPress.org REST API requests |
| 677 | || ( defined( 'REST_REQUEST' ) && REST_REQUEST ) |
| 678 | ) { |
| 679 | if ( $new_status == 'spam' && ( $old_status == 'approved' || $old_status == 'unapproved' || !$old_status ) ) { |
| 680 | return self::submit_spam_comment( $comment->comment_ID ); |
| 681 | } elseif ( $old_status == 'spam' && ( $new_status == 'approved' || $new_status == 'unapproved' ) ) { |
| 682 | return self::submit_nonspam_comment( $comment->comment_ID ); |
| 683 | } |
| 684 | } |
| 685 | |
| 686 | self::update_comment_history( $comment->comment_ID, '', 'status-' . $new_status ); |
| 687 | } |
| 688 | |
| 689 | public static function submit_spam_comment( $comment_id ) { |
| 690 | global $wpdb, $current_user, $current_site; |
| 691 | |
| 692 | $comment_id = (int) $comment_id; |
| 693 | |
| 694 | $comment = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $comment_id ) ); |
| 695 | |
| 696 | if ( !$comment ) // it was deleted |
| 697 | return; |
| 698 | |
| 699 | if ( 'spam' != $comment->comment_approved ) |
| 700 | return; |
| 701 | |
| 702 | self::update_comment_history( $comment_id, '', 'report-spam' ); |
| 703 | |
| 704 | // If the user hasn't configured Akismet, there's nothing else to do at this point. |
| 705 | if ( ! self::get_api_key() ) { |
| 706 | return; |
| 707 | } |
| 708 | |
| 709 | // use the original version stored in comment_meta if available |
| 710 | $as_submitted = self::sanitize_comment_as_submitted( get_comment_meta( $comment_id, 'akismet_as_submitted', true ) ); |
| 711 | |
| 712 | if ( $as_submitted && is_array( $as_submitted ) && isset( $as_submitted['comment_content'] ) ) |
| 713 | $comment = (object) array_merge( (array)$comment, $as_submitted ); |
| 714 | |
| 715 | $comment->blog = get_option( 'home' ); |
| 716 | $comment->blog_lang = get_locale(); |
| 717 | $comment->blog_charset = get_option('blog_charset'); |
| 718 | $comment->permalink = get_permalink($comment->comment_post_ID); |
| 719 | |
| 720 | if ( is_object($current_user) ) |
| 721 | $comment->reporter = $current_user->user_login; |
| 722 | |
| 723 | if ( is_object($current_site) ) |
| 724 | $comment->site_domain = $current_site->domain; |
| 725 | |
| 726 | $comment->user_role = ''; |
| 727 | if ( ! empty( $comment->user_ID ) ) { |
| 728 | $comment->user_role = Akismet::get_user_roles( $comment->user_ID ); |
| 729 | } |
| 730 | |
| 731 | if ( self::is_test_mode() ) |
| 732 | $comment->is_test = 'true'; |
| 733 | |
| 734 | $post = get_post( $comment->comment_post_ID ); |
| 735 | |
| 736 | if ( ! is_null( $post ) ) { |
| 737 | $comment->comment_post_modified_gmt = $post->post_modified_gmt; |
| 738 | } |
| 739 | |
| 740 | $response = Akismet::http_post( Akismet::build_query( $comment ), 'submit-spam' ); |
| 741 | |
| 742 | update_comment_meta( $comment_id, 'akismet_user_result', 'true' ); |
| 743 | |
| 744 | if ( $comment->reporter ) { |
| 745 | update_comment_meta( $comment_id, 'akismet_user', $comment->reporter ); |
| 746 | } |
| 747 | |
| 748 | do_action('akismet_submit_spam_comment', $comment_id, $response[1]); |
| 749 | } |
| 750 | |
| 751 | public static function submit_nonspam_comment( $comment_id ) { |
| 752 | global $wpdb, $current_user, $current_site; |
| 753 | |
| 754 | $comment_id = (int) $comment_id; |
| 755 | |
| 756 | $comment = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $comment_id ) ); |
| 757 | if ( !$comment ) // it was deleted |
| 758 | return; |
| 759 | |
| 760 | self::update_comment_history( $comment_id, '', 'report-ham' ); |
| 761 | |
| 762 | // If the user hasn't configured Akismet, there's nothing else to do at this point. |
| 763 | if ( ! self::get_api_key() ) { |
| 764 | return; |
| 765 | } |
| 766 | |
| 767 | // use the original version stored in comment_meta if available |
| 768 | $as_submitted = self::sanitize_comment_as_submitted( get_comment_meta( $comment_id, 'akismet_as_submitted', true ) ); |
| 769 | |
| 770 | if ( $as_submitted && is_array($as_submitted) && isset($as_submitted['comment_content']) ) |
| 771 | $comment = (object) array_merge( (array)$comment, $as_submitted ); |
| 772 | |
| 773 | $comment->blog = get_option( 'home' ); |
| 774 | $comment->blog_lang = get_locale(); |
| 775 | $comment->blog_charset = get_option('blog_charset'); |
| 776 | $comment->permalink = get_permalink( $comment->comment_post_ID ); |
| 777 | $comment->user_role = ''; |
| 778 | |
| 779 | if ( is_object($current_user) ) |
| 780 | $comment->reporter = $current_user->user_login; |
| 781 | |
| 782 | if ( is_object($current_site) ) |
| 783 | $comment->site_domain = $current_site->domain; |
| 784 | |
| 785 | if ( ! empty( $comment->user_ID ) ) { |
| 786 | $comment->user_role = Akismet::get_user_roles( $comment->user_ID ); |
| 787 | } |
| 788 | |
| 789 | if ( Akismet::is_test_mode() ) |
| 790 | $comment->is_test = 'true'; |
| 791 | |
| 792 | $post = get_post( $comment->comment_post_ID ); |
| 793 | |
| 794 | if ( ! is_null( $post ) ) { |
| 795 | $comment->comment_post_modified_gmt = $post->post_modified_gmt; |
| 796 | } |
| 797 | |
| 798 | $response = self::http_post( Akismet::build_query( $comment ), 'submit-ham' ); |
| 799 | |
| 800 | update_comment_meta( $comment_id, 'akismet_user_result', 'false' ); |
| 801 | |
| 802 | if ( $comment->reporter ) { |
| 803 | update_comment_meta( $comment_id, 'akismet_user', $comment->reporter ); |
| 804 | } |
| 805 | |
| 806 | do_action('akismet_submit_nonspam_comment', $comment_id, $response[1]); |
| 807 | } |
| 808 | |
| 809 | public static function cron_recheck() { |
| 810 | global $wpdb; |
| 811 | |
| 812 | $api_key = self::get_api_key(); |
| 813 | |
| 814 | $status = self::verify_key( $api_key ); |
| 815 | if ( get_option( 'akismet_alert_code' ) || $status == 'invalid' ) { |
| 816 | // since there is currently a problem with the key, reschedule a check for 6 hours hence |
| 817 | wp_schedule_single_event( time() + 21600, 'akismet_schedule_cron_recheck' ); |
| 818 | do_action( 'akismet_scheduled_recheck', 'key-problem-' . get_option( 'akismet_alert_code' ) . '-' . $status ); |
| 819 | return false; |
| 820 | } |
| 821 | |
| 822 | delete_option('akismet_available_servers'); |
| 823 | |
| 824 | $comment_errors = $wpdb->get_col( "SELECT comment_id FROM {$wpdb->commentmeta} WHERE meta_key = 'akismet_error' LIMIT 100" ); |
| 825 | |
| 826 | load_plugin_textdomain( 'akismet' ); |
| 827 | |
| 828 | foreach ( (array) $comment_errors as $comment_id ) { |
| 829 | // if the comment no longer exists, or is too old, remove the meta entry from the queue to avoid getting stuck |
| 830 | $comment = get_comment( $comment_id ); |
| 831 | |
| 832 | if ( |
| 833 | ! $comment // Comment has been deleted |
| 834 | || strtotime( $comment->comment_date_gmt ) < strtotime( "-15 days" ) // Comment is too old. |
| 835 | || $comment->comment_approved !== "0" // Comment is no longer in the Pending queue |
| 836 | ) { |
| 837 | delete_comment_meta( $comment_id, 'akismet_error' ); |
| 838 | delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' ); |
| 839 | continue; |
| 840 | } |
| 841 | |
| 842 | add_comment_meta( $comment_id, 'akismet_rechecking', true ); |
| 843 | $status = self::check_db_comment( $comment_id, 'retry' ); |
| 844 | |
| 845 | $event = ''; |
| 846 | if ( $status == 'true' ) { |
| 847 | $event = 'cron-retry-spam'; |
| 848 | } elseif ( $status == 'false' ) { |
| 849 | $event = 'cron-retry-ham'; |
| 850 | } |
| 851 | |
| 852 | // If we got back a legit response then update the comment history |
| 853 | // other wise just bail now and try again later. No point in |
| 854 | // re-trying all the comments once we hit one failure. |
| 855 | if ( !empty( $event ) ) { |
| 856 | delete_comment_meta( $comment_id, 'akismet_error' ); |
| 857 | self::update_comment_history( $comment_id, '', $event ); |
| 858 | update_comment_meta( $comment_id, 'akismet_result', $status ); |
| 859 | // make sure the comment status is still pending. if it isn't, that means the user has already moved it elsewhere. |
| 860 | $comment = get_comment( $comment_id ); |
| 861 | if ( $comment && 'unapproved' == wp_get_comment_status( $comment_id ) ) { |
| 862 | if ( $status == 'true' ) { |
| 863 | wp_spam_comment( $comment_id ); |
| 864 | } elseif ( $status == 'false' ) { |
| 865 | // comment is good, but it's still in the pending queue. depending on the moderation settings |
| 866 | // we may need to change it to approved. |
| 867 | if ( check_comment($comment->comment_author, $comment->comment_author_email, $comment->comment_author_url, $comment->comment_content, $comment->comment_author_IP, $comment->comment_agent, $comment->comment_type) ) |
| 868 | wp_set_comment_status( $comment_id, 1 ); |
| 869 | else if ( get_comment_meta( $comment_id, 'akismet_delayed_moderation_email', true ) ) |
| 870 | wp_notify_moderator( $comment_id ); |
| 871 | } |
| 872 | } |
| 873 | |
| 874 | delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' ); |
| 875 | } else { |
| 876 | // If this comment has been pending moderation for longer than MAX_DELAY_BEFORE_MODERATION_EMAIL, |
| 877 | // send a moderation email now. |
| 878 | if ( ( intval( gmdate( 'U' ) ) - strtotime( $comment->comment_date_gmt ) ) < self::MAX_DELAY_BEFORE_MODERATION_EMAIL ) { |
| 879 | delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' ); |
| 880 | wp_notify_moderator( $comment_id ); |
| 881 | } |
| 882 | |
| 883 | delete_comment_meta( $comment_id, 'akismet_rechecking' ); |
| 884 | wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' ); |
| 885 | do_action( 'akismet_scheduled_recheck', 'check-db-comment-' . $status ); |
| 886 | return; |
| 887 | } |
| 888 | delete_comment_meta( $comment_id, 'akismet_rechecking' ); |
| 889 | } |
| 890 | |
| 891 | $remaining = $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->commentmeta} WHERE meta_key = 'akismet_error'" ); |
| 892 | if ( $remaining && !wp_next_scheduled('akismet_schedule_cron_recheck') ) { |
| 893 | wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' ); |
| 894 | do_action( 'akismet_scheduled_recheck', 'remaining' ); |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | public static function fix_scheduled_recheck() { |
| 899 | $future_check = wp_next_scheduled( 'akismet_schedule_cron_recheck' ); |
| 900 | if ( !$future_check ) { |
| 901 | return; |
| 902 | } |
| 903 | |
| 904 | if ( get_option( 'akismet_alert_code' ) > 0 ) { |
| 905 | return; |
| 906 | } |
| 907 | |
| 908 | $check_range = time() + 1200; |
| 909 | if ( $future_check > $check_range ) { |
| 910 | wp_clear_scheduled_hook( 'akismet_schedule_cron_recheck' ); |
| 911 | wp_schedule_single_event( time() + 300, 'akismet_schedule_cron_recheck' ); |
| 912 | do_action( 'akismet_scheduled_recheck', 'fix-scheduled-recheck' ); |
| 913 | } |
| 914 | } |
| 915 | |
| 916 | public static function add_comment_nonce( $post_id ) { |
| 917 | /** |
| 918 | * To disable the Akismet comment nonce, add a filter for the 'akismet_comment_nonce' tag |
| 919 | * and return any string value that is not 'true' or '' (empty string). |
| 920 | * |
| 921 | * Don't return boolean false, because that implies that the 'akismet_comment_nonce' option |
| 922 | * has not been set and that Akismet should just choose the default behavior for that |
| 923 | * situation. |
| 924 | */ |
| 925 | |
| 926 | if ( ! self::get_api_key() ) { |
| 927 | return; |
| 928 | } |
| 929 | |
| 930 | $akismet_comment_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) ); |
| 931 | |
| 932 | if ( $akismet_comment_nonce_option == 'true' || $akismet_comment_nonce_option == '' ) { |
| 933 | echo '<p style="display: none;">'; |
| 934 | wp_nonce_field( 'akismet_comment_nonce_' . $post_id, 'akismet_comment_nonce', FALSE ); |
| 935 | echo '</p>'; |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | public static function is_test_mode() { |
| 940 | return defined('AKISMET_TEST_MODE') && AKISMET_TEST_MODE; |
| 941 | } |
| 942 | |
| 943 | public static function allow_discard() { |
| 944 | if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) |
| 945 | return false; |
| 946 | if ( is_user_logged_in() ) |
| 947 | return false; |
| 948 | |
| 949 | return ( get_option( 'akismet_strictness' ) === '1' ); |
| 950 | } |
| 951 | |
| 952 | public static function get_ip_address() { |
| 953 | return isset( $_SERVER['REMOTE_ADDR'] ) ? $_SERVER['REMOTE_ADDR'] : null; |
| 954 | } |
| 955 | |
| 956 | /** |
| 957 | * Do these two comments, without checking the comment_ID, "match"? |
| 958 | * |
| 959 | * @param mixed $comment1 A comment object or array. |
| 960 | * @param mixed $comment2 A comment object or array. |
| 961 | * @return bool Whether the two comments should be treated as the same comment. |
| 962 | */ |
| 963 | private static function comments_match( $comment1, $comment2 ) { |
| 964 | $comment1 = (array) $comment1; |
| 965 | $comment2 = (array) $comment2; |
| 966 | |
| 967 | // Set default values for these strings that we check in order to simplify |
| 968 | // the checks and avoid PHP warnings. |
| 969 | if ( ! isset( $comment1['comment_author'] ) ) { |
| 970 | $comment1['comment_author'] = ''; |
| 971 | } |
| 972 | |
| 973 | if ( ! isset( $comment2['comment_author'] ) ) { |
| 974 | $comment2['comment_author'] = ''; |
| 975 | } |
| 976 | |
| 977 | if ( ! isset( $comment1['comment_author_email'] ) ) { |
| 978 | $comment1['comment_author_email'] = ''; |
| 979 | } |
| 980 | |
| 981 | if ( ! isset( $comment2['comment_author_email'] ) ) { |
| 982 | $comment2['comment_author_email'] = ''; |
| 983 | } |
| 984 | |
| 985 | $comments_match = ( |
| 986 | isset( $comment1['comment_post_ID'], $comment2['comment_post_ID'] ) |
| 987 | && intval( $comment1['comment_post_ID'] ) == intval( $comment2['comment_post_ID'] ) |
| 988 | && ( |
| 989 | // The comment author length max is 255 characters, limited by the TINYTEXT column type. |
| 990 | // If the comment author includes multibyte characters right around the 255-byte mark, they |
| 991 | // may be stripped when the author is saved in the DB, so a 300+ char author may turn into |
| 992 | // a 253-char author when it's saved, not 255 exactly. The longest possible character is |
| 993 | // theoretically 6 bytes, so we'll only look at the first 248 bytes to be safe. |
| 994 | substr( $comment1['comment_author'], 0, 248 ) == substr( $comment2['comment_author'], 0, 248 ) |
| 995 | || substr( stripslashes( $comment1['comment_author'] ), 0, 248 ) == substr( $comment2['comment_author'], 0, 248 ) |
| 996 | || substr( $comment1['comment_author'], 0, 248 ) == substr( stripslashes( $comment2['comment_author'] ), 0, 248 ) |
| 997 | // Certain long comment author names will be truncated to nothing, depending on their encoding. |
| 998 | || ( ! $comment1['comment_author'] && strlen( $comment2['comment_author'] ) > 248 ) |
| 999 | || ( ! $comment2['comment_author'] && strlen( $comment1['comment_author'] ) > 248 ) |
| 1000 | ) |
| 1001 | && ( |
| 1002 | // The email max length is 100 characters, limited by the VARCHAR(100) column type. |
| 1003 | // Same argument as above for only looking at the first 93 characters. |
| 1004 | substr( $comment1['comment_author_email'], 0, 93 ) == substr( $comment2['comment_author_email'], 0, 93 ) |
| 1005 | || substr( stripslashes( $comment1['comment_author_email'] ), 0, 93 ) == substr( $comment2['comment_author_email'], 0, 93 ) |
| 1006 | || substr( $comment1['comment_author_email'], 0, 93 ) == substr( stripslashes( $comment2['comment_author_email'] ), 0, 93 ) |
| 1007 | // Very long emails can be truncated and then stripped if the [0:100] substring isn't a valid address. |
| 1008 | || ( ! $comment1['comment_author_email'] && strlen( $comment2['comment_author_email'] ) > 100 ) |
| 1009 | || ( ! $comment2['comment_author_email'] && strlen( $comment1['comment_author_email'] ) > 100 ) |
| 1010 | ) |
| 1011 | ); |
| 1012 | |
| 1013 | return $comments_match; |
| 1014 | } |
| 1015 | |
| 1016 | // Does the supplied comment match the details of the one most recently stored in self::$last_comment? |
| 1017 | public static function matches_last_comment( $comment ) { |
| 1018 | return self::comments_match( self::$last_comment, $comment ); |
| 1019 | } |
| 1020 | |
| 1021 | private static function get_user_agent() { |
| 1022 | return isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : null; |
| 1023 | } |
| 1024 | |
| 1025 | private static function get_referer() { |
| 1026 | return isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : null; |
| 1027 | } |
| 1028 | |
| 1029 | // return a comma-separated list of role names for the given user |
| 1030 | public static function get_user_roles( $user_id ) { |
| 1031 | $roles = false; |
| 1032 | |
| 1033 | if ( !class_exists('WP_User') ) |
| 1034 | return false; |
| 1035 | |
| 1036 | if ( $user_id > 0 ) { |
| 1037 | $comment_user = new WP_User( $user_id ); |
| 1038 | if ( isset( $comment_user->roles ) ) |
| 1039 | $roles = join( ',', $comment_user->roles ); |
| 1040 | } |
| 1041 | |
| 1042 | if ( is_multisite() && is_super_admin( $user_id ) ) { |
| 1043 | if ( empty( $roles ) ) { |
| 1044 | $roles = 'super_admin'; |
| 1045 | } else { |
| 1046 | $comment_user->roles[] = 'super_admin'; |
| 1047 | $roles = join( ',', $comment_user->roles ); |
| 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | return $roles; |
| 1052 | } |
| 1053 | |
| 1054 | // filter handler used to return a spam result to pre_comment_approved |
| 1055 | public static function last_comment_status( $approved, $comment ) { |
| 1056 | if ( is_null( self::$last_comment_result ) ) { |
| 1057 | // We didn't have reason to store the result of the last check. |
| 1058 | return $approved; |
| 1059 | } |
| 1060 | |
| 1061 | // Only do this if it's the correct comment |
| 1062 | if ( ! self::matches_last_comment( $comment ) ) { |
| 1063 | self::log( "comment_is_spam mismatched comment, returning unaltered $approved" ); |
| 1064 | return $approved; |
| 1065 | } |
| 1066 | |
| 1067 | if ( 'trash' === $approved ) { |
| 1068 | // If the last comment we checked has had its approval set to 'trash', |
| 1069 | // then it failed the comment blacklist check. Let that blacklist override |
| 1070 | // the spam check, since users have the (valid) expectation that when |
| 1071 | // they fill out their blacklists, comments that match it will always |
| 1072 | // end up in the trash. |
| 1073 | return $approved; |
| 1074 | } |
| 1075 | |
| 1076 | // bump the counter here instead of when the filter is added to reduce the possibility of overcounting |
| 1077 | if ( $incr = apply_filters('akismet_spam_count_incr', 1) ) |
| 1078 | update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr ); |
| 1079 | |
| 1080 | return self::$last_comment_result; |
| 1081 | } |
| 1082 | |
| 1083 | /** |
| 1084 | * If Akismet is temporarily unreachable, we don't want to "spam" the blogger with |
| 1085 | * moderation emails for comments that will be automatically cleared or spammed on |
| 1086 | * the next retry. |
| 1087 | * |
| 1088 | * For comments that will be rechecked later, empty the list of email addresses that |
| 1089 | * the moderation email would be sent to. |
| 1090 | * |
| 1091 | * @param array $emails An array of email addresses that the moderation email will be sent to. |
| 1092 | * @param int $comment_id The ID of the relevant comment. |
| 1093 | * @return array An array of email addresses that the moderation email will be sent to. |
| 1094 | */ |
| 1095 | public static function disable_moderation_emails_if_unreachable( $emails, $comment_id ) { |
| 1096 | if ( ! empty( self::$prevent_moderation_email_for_these_comments ) && ! empty( $emails ) ) { |
| 1097 | $comment = get_comment( $comment_id ); |
| 1098 | |
| 1099 | foreach ( self::$prevent_moderation_email_for_these_comments as $possible_match ) { |
| 1100 | if ( self::comments_match( $possible_match, $comment ) ) { |
| 1101 | update_comment_meta( $comment_id, 'akismet_delayed_moderation_email', true ); |
| 1102 | return array(); |
| 1103 | } |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | return $emails; |
| 1108 | } |
| 1109 | |
| 1110 | public static function _cmp_time( $a, $b ) { |
| 1111 | return $a['time'] > $b['time'] ? -1 : 1; |
| 1112 | } |
| 1113 | |
| 1114 | public static function _get_microtime() { |
| 1115 | $mtime = explode( ' ', microtime() ); |
| 1116 | return $mtime[1] + $mtime[0]; |
| 1117 | } |
| 1118 | |
| 1119 | /** |
| 1120 | * Make a POST request to the Akismet API. |
| 1121 | * |
| 1122 | * @param string $request The body of the request. |
| 1123 | * @param string $path The path for the request. |
| 1124 | * @param string $ip The specific IP address to hit. |
| 1125 | * @return array A two-member array consisting of the headers and the response body, both empty in the case of a failure. |
| 1126 | */ |
| 1127 | public static function http_post( $request, $path, $ip=null ) { |
| 1128 | |
| 1129 | $akismet_ua = sprintf( 'WordPress/%s | Akismet/%s', $GLOBALS['wp_version'], constant( 'AKISMET_VERSION' ) ); |
| 1130 | $akismet_ua = apply_filters( 'akismet_ua', $akismet_ua ); |
| 1131 | |
| 1132 | $content_length = strlen( $request ); |
| 1133 | |
| 1134 | $api_key = self::get_api_key(); |
| 1135 | $host = self::API_HOST; |
| 1136 | |
| 1137 | if ( !empty( $api_key ) ) |
| 1138 | $host = $api_key.'.'.$host; |
| 1139 | |
| 1140 | $http_host = $host; |
| 1141 | // use a specific IP if provided |
| 1142 | // needed by Akismet_Admin::check_server_connectivity() |
| 1143 | if ( $ip && long2ip( ip2long( $ip ) ) ) { |
| 1144 | $http_host = $ip; |
| 1145 | } |
| 1146 | |
| 1147 | $http_args = array( |
| 1148 | 'body' => $request, |
| 1149 | 'headers' => array( |
| 1150 | 'Content-Type' => 'application/x-www-form-urlencoded; charset=' . get_option( 'blog_charset' ), |
| 1151 | 'Host' => $host, |
| 1152 | 'User-Agent' => $akismet_ua, |
| 1153 | ), |
| 1154 | 'httpversion' => '1.0', |
| 1155 | 'timeout' => 15 |
| 1156 | ); |
| 1157 | |
| 1158 | $akismet_url = $http_akismet_url = "http://{$http_host}/1.1/{$path}"; |
| 1159 | |
| 1160 | /** |
| 1161 | * Try SSL first; if that fails, try without it and don't try it again for a while. |
| 1162 | */ |
| 1163 | |
| 1164 | $ssl = $ssl_failed = false; |
| 1165 | |
| 1166 | // Check if SSL requests were disabled fewer than X hours ago. |
| 1167 | $ssl_disabled = get_option( 'akismet_ssl_disabled' ); |
| 1168 | |
| 1169 | if ( $ssl_disabled && $ssl_disabled < ( time() - 60 * 60 * 24 ) ) { // 24 hours |
| 1170 | $ssl_disabled = false; |
| 1171 | delete_option( 'akismet_ssl_disabled' ); |
| 1172 | } |
| 1173 | else if ( $ssl_disabled ) { |
| 1174 | do_action( 'akismet_ssl_disabled' ); |
| 1175 | } |
| 1176 | |
| 1177 | if ( ! $ssl_disabled && ( $ssl = wp_http_supports( array( 'ssl' ) ) ) ) { |
| 1178 | $akismet_url = set_url_scheme( $akismet_url, 'https' ); |
| 1179 | |
| 1180 | do_action( 'akismet_https_request_pre' ); |
| 1181 | } |
| 1182 | |
| 1183 | $response = wp_remote_post( $akismet_url, $http_args ); |
| 1184 | |
| 1185 | Akismet::log( compact( 'akismet_url', 'http_args', 'response' ) ); |
| 1186 | |
| 1187 | if ( $ssl && is_wp_error( $response ) ) { |
| 1188 | do_action( 'akismet_https_request_failure', $response ); |
| 1189 | |
| 1190 | // Intermittent connection problems may cause the first HTTPS |
| 1191 | // request to fail and subsequent HTTP requests to succeed randomly. |
| 1192 | // Retry the HTTPS request once before disabling SSL for a time. |
| 1193 | $response = wp_remote_post( $akismet_url, $http_args ); |
| 1194 | |
| 1195 | Akismet::log( compact( 'akismet_url', 'http_args', 'response' ) ); |
| 1196 | |
| 1197 | if ( is_wp_error( $response ) ) { |
| 1198 | $ssl_failed = true; |
| 1199 | |
| 1200 | do_action( 'akismet_https_request_failure', $response ); |
| 1201 | |
| 1202 | do_action( 'akismet_http_request_pre' ); |
| 1203 | |
| 1204 | // Try the request again without SSL. |
| 1205 | $response = wp_remote_post( $http_akismet_url, $http_args ); |
| 1206 | |
| 1207 | Akismet::log( compact( 'http_akismet_url', 'http_args', 'response' ) ); |
| 1208 | } |
| 1209 | } |
| 1210 | |
| 1211 | if ( is_wp_error( $response ) ) { |
| 1212 | do_action( 'akismet_request_failure', $response ); |
| 1213 | |
| 1214 | return array( '', '' ); |
| 1215 | } |
| 1216 | |
| 1217 | if ( $ssl_failed ) { |
| 1218 | // The request failed when using SSL but succeeded without it. Disable SSL for future requests. |
| 1219 | update_option( 'akismet_ssl_disabled', time() ); |
| 1220 | |
| 1221 | do_action( 'akismet_https_disabled' ); |
| 1222 | } |
| 1223 | |
| 1224 | $simplified_response = array( $response['headers'], $response['body'] ); |
| 1225 | |
| 1226 | self::update_alert( $simplified_response ); |
| 1227 | |
| 1228 | return $simplified_response; |
| 1229 | } |
| 1230 | |
| 1231 | // given a response from an API call like check_key_status(), update the alert code options if an alert is present. |
| 1232 | public static function update_alert( $response ) { |
| 1233 | $code = $msg = null; |
| 1234 | if ( isset( $response[0]['x-akismet-alert-code'] ) ) { |
| 1235 | $code = $response[0]['x-akismet-alert-code']; |
| 1236 | $msg = $response[0]['x-akismet-alert-msg']; |
| 1237 | } |
| 1238 | |
| 1239 | // only call update_option() if the value has changed |
| 1240 | if ( $code != get_option( 'akismet_alert_code' ) ) { |
| 1241 | if ( ! $code ) { |
| 1242 | delete_option( 'akismet_alert_code' ); |
| 1243 | delete_option( 'akismet_alert_msg' ); |
| 1244 | } |
| 1245 | else { |
| 1246 | update_option( 'akismet_alert_code', $code ); |
| 1247 | update_option( 'akismet_alert_msg', $msg ); |
| 1248 | } |
| 1249 | } |
| 1250 | } |
| 1251 | |
| 1252 | public static function load_form_js() { |
| 1253 | if ( function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() ) { |
| 1254 | return; |
| 1255 | } |
| 1256 | |
| 1257 | if ( ! self::get_api_key() ) { |
| 1258 | return; |
| 1259 | } |
| 1260 | |
| 1261 | wp_register_script( 'akismet-form', plugin_dir_url( __FILE__ ) . '_inc/form.js', array(), AKISMET_VERSION, true ); |
| 1262 | wp_enqueue_script( 'akismet-form' ); |
| 1263 | } |
| 1264 | |
| 1265 | /** |
| 1266 | * Mark form.js as async. Because nothing depends on it, it can run at any time |
| 1267 | * after it's loaded, and the browser won't have to wait for it to load to continue |
| 1268 | * parsing the rest of the page. |
| 1269 | */ |
| 1270 | public static function set_form_js_async( $tag, $handle, $src ) { |
| 1271 | if ( 'akismet-form' !== $handle ) { |
| 1272 | return $tag; |
| 1273 | } |
| 1274 | |
| 1275 | return preg_replace( '/^<script /i', '<script async="async" ', $tag ); |
| 1276 | } |
| 1277 | |
| 1278 | public static function inject_ak_js( $fields ) { |
| 1279 | echo '<p style="display: none;">'; |
| 1280 | echo '<input type="hidden" id="ak_js" name="ak_js" value="' . mt_rand( 0, 250 ) . '"/>'; |
| 1281 | echo '</p>'; |
| 1282 | } |
| 1283 | |
| 1284 | private static function bail_on_activation( $message, $deactivate = true ) { |
| 1285 | ?> |
| 1286 | <!doctype html> |
| 1287 | <html> |
| 1288 | <head> |
| 1289 | <meta charset="<?php bloginfo( 'charset' ); ?>" /> |
| 1290 | <style> |
| 1291 | * { |
| 1292 | text-align: center; |
| 1293 | margin: 0; |
| 1294 | padding: 0; |
| 1295 | font-family: "Lucida Grande",Verdana,Arial,"Bitstream Vera Sans",sans-serif; |
| 1296 | } |
| 1297 | p { |
| 1298 | margin-top: 1em; |
| 1299 | font-size: 18px; |
| 1300 | } |
| 1301 | </style> |
| 1302 | </head> |
| 1303 | <body> |
| 1304 | <p><?php echo esc_html( $message ); ?></p> |
| 1305 | </body> |
| 1306 | </html> |
| 1307 | <?php |
| 1308 | if ( $deactivate ) { |
| 1309 | $plugins = get_option( 'active_plugins' ); |
| 1310 | $akismet = plugin_basename( AKISMET__PLUGIN_DIR . 'akismet.php' ); |
| 1311 | $update = false; |
| 1312 | foreach ( $plugins as $i => $plugin ) { |
| 1313 | if ( $plugin === $akismet ) { |
| 1314 | $plugins[$i] = false; |
| 1315 | $update = true; |
| 1316 | } |
| 1317 | } |
| 1318 | |
| 1319 | if ( $update ) { |
| 1320 | update_option( 'active_plugins', array_filter( $plugins ) ); |
| 1321 | } |
| 1322 | } |
| 1323 | exit; |
| 1324 | } |
| 1325 | |
| 1326 | public static function view( $name, array $args = array() ) { |
| 1327 | $args = apply_filters( 'akismet_view_arguments', $args, $name ); |
| 1328 | |
| 1329 | foreach ( $args AS $key => $val ) { |
| 1330 | $$key = $val; |
| 1331 | } |
| 1332 | |
| 1333 | load_plugin_textdomain( 'akismet' ); |
| 1334 | |
| 1335 | $file = AKISMET__PLUGIN_DIR . 'views/'. $name . '.php'; |
| 1336 | |
| 1337 | include( $file ); |
| 1338 | } |
| 1339 | |
| 1340 | /** |
| 1341 | * Attached to activate_{ plugin_basename( __FILES__ ) } by register_activation_hook() |
| 1342 | * @static |
| 1343 | */ |
| 1344 | public static function plugin_activation() { |
| 1345 | if ( version_compare( $GLOBALS['wp_version'], AKISMET__MINIMUM_WP_VERSION, '<' ) ) { |
| 1346 | load_plugin_textdomain( 'akismet' ); |
| 1347 | |
| 1348 | $message = '<strong>'.sprintf(esc_html__( 'Akismet %s requires WordPress %s or higher.' , 'akismet'), AKISMET_VERSION, AKISMET__MINIMUM_WP_VERSION ).'</strong> '.sprintf(__('Please <a href="%1$s">upgrade WordPress</a> to a current version, or <a href="%2$s">downgrade to version 2.4 of the Akismet plugin</a>.', 'akismet'), 'https://codex.wordpress.org/Upgrading_WordPress', 'https://wordpress.org/extend/plugins/akismet/download/'); |
| 1349 | |
| 1350 | Akismet::bail_on_activation( $message ); |
| 1351 | } elseif ( ! empty( $_SERVER['SCRIPT_NAME'] ) && false !== strpos( $_SERVER['SCRIPT_NAME'], '/wp-admin/plugins.php' ) ) { |
| 1352 | add_option( 'Activated_Akismet', true ); |
| 1353 | } |
| 1354 | } |
| 1355 | |
| 1356 | /** |
| 1357 | * Removes all connection options |
| 1358 | * @static |
| 1359 | */ |
| 1360 | public static function plugin_deactivation( ) { |
| 1361 | self::deactivate_key( self::get_api_key() ); |
| 1362 | |
| 1363 | // Remove any scheduled cron jobs. |
| 1364 | $akismet_cron_events = array( |
| 1365 | 'akismet_schedule_cron_recheck', |
| 1366 | 'akismet_scheduled_delete', |
| 1367 | ); |
| 1368 | |
| 1369 | foreach ( $akismet_cron_events as $akismet_cron_event ) { |
| 1370 | $timestamp = wp_next_scheduled( $akismet_cron_event ); |
| 1371 | |
| 1372 | if ( $timestamp ) { |
| 1373 | wp_unschedule_event( $timestamp, $akismet_cron_event ); |
| 1374 | } |
| 1375 | } |
| 1376 | } |
| 1377 | |
| 1378 | /** |
| 1379 | * Essentially a copy of WP's build_query but one that doesn't expect pre-urlencoded values. |
| 1380 | * |
| 1381 | * @param array $args An array of key => value pairs |
| 1382 | * @return string A string ready for use as a URL query string. |
| 1383 | */ |
| 1384 | public static function build_query( $args ) { |
| 1385 | return _http_build_query( $args, '', '&' ); |
| 1386 | } |
| 1387 | |
| 1388 | /** |
| 1389 | * Log debugging info to the error log. |
| 1390 | * |
| 1391 | * Enabled when WP_DEBUG_LOG is enabled (and WP_DEBUG, since according to |
| 1392 | * core, "WP_DEBUG_DISPLAY and WP_DEBUG_LOG perform no function unless |
| 1393 | * WP_DEBUG is true), but can be disabled via the akismet_debug_log filter. |
| 1394 | * |
| 1395 | * @param mixed $akismet_debug The data to log. |
| 1396 | */ |
| 1397 | public static function log( $akismet_debug ) { |
| 1398 | if ( apply_filters( 'akismet_debug_log', defined( 'WP_DEBUG' ) && WP_DEBUG && defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG && defined( 'AKISMET_DEBUG' ) && AKISMET_DEBUG ) ) { |
| 1399 | error_log( print_r( compact( 'akismet_debug' ), true ) ); |
| 1400 | } |
| 1401 | } |
| 1402 | |
| 1403 | public static function pre_check_pingback( $method ) { |
| 1404 | if ( $method !== 'pingback.ping' ) |
| 1405 | return; |
| 1406 | |
| 1407 | global $wp_xmlrpc_server; |
| 1408 | |
| 1409 | if ( !is_object( $wp_xmlrpc_server ) ) |
| 1410 | return false; |
| 1411 | |
| 1412 | // Lame: tightly coupled with the IXR class. |
| 1413 | $args = $wp_xmlrpc_server->message->params; |
| 1414 | |
| 1415 | if ( !empty( $args[1] ) ) { |
| 1416 | $post_id = url_to_postid( $args[1] ); |
| 1417 | |
| 1418 | // If pingbacks aren't open on this post, we'll still check whether this request is part of a potential DDOS, |
| 1419 | // but indicate to the server that pingbacks are indeed closed so we don't include this request in the user's stats, |
| 1420 | // since the user has already done their part by disabling pingbacks. |
| 1421 | $pingbacks_closed = false; |
| 1422 | |
| 1423 | $post = get_post( $post_id ); |
| 1424 | |
| 1425 | if ( ! $post || ! pings_open( $post ) ) { |
| 1426 | $pingbacks_closed = true; |
| 1427 | } |
| 1428 | |
| 1429 | $comment = array( |
| 1430 | 'comment_author_url' => $args[0], |
| 1431 | 'comment_post_ID' => $post_id, |
| 1432 | 'comment_author' => '', |
| 1433 | 'comment_author_email' => '', |
| 1434 | 'comment_content' => '', |
| 1435 | 'comment_type' => 'pingback', |
| 1436 | 'akismet_pre_check' => '1', |
| 1437 | 'comment_pingback_target' => $args[1], |
| 1438 | 'pingbacks_closed' => $pingbacks_closed ? '1' : '0', |
| 1439 | ); |
| 1440 | |
| 1441 | $comment = Akismet::auto_check_comment( $comment ); |
| 1442 | |
| 1443 | if ( isset( $comment['akismet_result'] ) && 'true' == $comment['akismet_result'] ) { |
| 1444 | // Lame: tightly coupled with the IXR classes. Unfortunately the action provides no context and no way to return anything. |
| 1445 | $wp_xmlrpc_server->error( new IXR_Error( 0, 'Invalid discovery target' ) ); |
| 1446 | } |
| 1447 | } |
| 1448 | } |
| 1449 | |
| 1450 | /** |
| 1451 | * Ensure that we are loading expected scalar values from akismet_as_submitted commentmeta. |
| 1452 | * |
| 1453 | * @param mixed $meta_value |
| 1454 | * @return mixed |
| 1455 | */ |
| 1456 | private static function sanitize_comment_as_submitted( $meta_value ) { |
| 1457 | if ( empty( $meta_value ) ) { |
| 1458 | return $meta_value; |
| 1459 | } |
| 1460 | |
| 1461 | $meta_value = (array) $meta_value; |
| 1462 | |
| 1463 | foreach ( $meta_value as $key => $value ) { |
| 1464 | if ( ! isset( self::$comment_as_submitted_allowed_keys[$key] ) || ! is_scalar( $value ) ) { |
| 1465 | unset( $meta_value[$key] ); |
| 1466 | } |
| 1467 | } |
| 1468 | |
| 1469 | return $meta_value; |
| 1470 | } |
| 1471 | |
| 1472 | public static function predefined_api_key() { |
| 1473 | if ( defined( 'WPCOM_API_KEY' ) ) { |
| 1474 | return true; |
| 1475 | } |
| 1476 | |
| 1477 | return apply_filters( 'akismet_predefined_api_key', false ); |
| 1478 | } |
| 1479 | |
| 1480 | /** |
| 1481 | * Controls the display of a privacy related notice underneath the comment form using the `akismet_comment_form_privacy_notice` option and filter respectively. |
| 1482 | * Default is top not display the notice, leaving the choice to site admins, or integrators. |
| 1483 | */ |
| 1484 | public static function display_comment_form_privacy_notice() { |
| 1485 | if ( 'display' !== apply_filters( 'akismet_comment_form_privacy_notice', get_option( 'akismet_comment_form_privacy_notice', 'hide' ) ) ) { |
| 1486 | return; |
| 1487 | } |
| 1488 | echo apply_filters( |
| 1489 | 'akismet_comment_form_privacy_notice_markup', |
| 1490 | '<p class="akismet_comment_form_privacy_notice">' . sprintf( |
| 1491 | __( 'This site uses Akismet to reduce spam. <a href="%s" target="_blank" rel="nofollow noopener">Learn how your comment data is processed</a>.', 'akismet' ), |
| 1492 | 'https://akismet.com/privacy/' |
| 1493 | ) . '</p>' |
| 1494 | ); |
| 1495 | } |
| 1496 | } |
| 1497 |