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| 1 | <?php |
| 2 | /** |
| 3 | * Plugin Name: Verbum Comments Experience |
| 4 | * Description: Preact app for commenting on WordPress.com sites |
| 5 | * Author: Vertex |
| 6 | * Text Domain: jetpack-mu-wpcom |
| 7 | * |
| 8 | * @package automattic/jetpack-mu-wpcom |
| 9 | */ |
| 10 | |
| 11 | namespace Automattic\Jetpack; |
| 12 | |
| 13 | use WP_Error; |
| 14 | |
| 15 | require_once __DIR__ . '/assets/class-wpcom-rest-api-v2-verbum-auth.php'; |
| 16 | require_once __DIR__ . '/assets/class-wpcom-rest-api-v2-verbum-oembed.php'; |
| 17 | require_once __DIR__ . '/assets/class-verbum-gutenberg-editor.php'; |
| 18 | require_once __DIR__ . '/assets/class-verbum-block-utils.php'; |
| 19 | |
| 20 | /** |
| 21 | * Verbum Comments Experience |
| 22 | * |
| 23 | * This file loads the Verbum Comment user experience on WordPress.com and Jetpack sites. |
| 24 | * |
| 25 | * @phan-constructor-used-for-side-effects |
| 26 | */ |
| 27 | class Verbum_Comments { |
| 28 | /** |
| 29 | * Internal reference for the current blog id. |
| 30 | * |
| 31 | * @var int |
| 32 | */ |
| 33 | public $blog_id; |
| 34 | |
| 35 | /** |
| 36 | * Comment forms can appear anywhere (page, post, query loop, etc), there is no reliable way to determine if there are comments on the page, |
| 37 | * So we hook into `comment_form_before` and set this flag to true when a comment form is found. |
| 38 | * |
| 39 | * @var bool |
| 40 | */ |
| 41 | public $should_enqueue_assets = false; |
| 42 | |
| 43 | /** |
| 44 | * Class constructor |
| 45 | */ |
| 46 | public function __construct() { |
| 47 | $this->blog_id = get_current_blog_id(); |
| 48 | |
| 49 | // Jetpack loads the app via an iframe, so we need to get the blog id from the query string. |
| 50 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 51 | if ( isset( $_GET['blogid'] ) ) { |
| 52 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 53 | $this->blog_id = intval( $_GET['blogid'] ); |
| 54 | } |
| 55 | |
| 56 | add_action( |
| 57 | 'comment_form_before', |
| 58 | function () { |
| 59 | $this->should_enqueue_assets = true; |
| 60 | } |
| 61 | ); |
| 62 | |
| 63 | // Selfishly remove everything from the existing comment form |
| 64 | add_filter( 'comment_form_field_comment', '__return_false', 11 ); |
| 65 | add_filter( 'comment_form_logged_in', '__return_empty_string' ); |
| 66 | add_filter( 'comment_form_defaults', array( $this, 'comment_form_defaults' ), 20 ); |
| 67 | remove_action( 'comment_form', 'subscription_comment_form' ); |
| 68 | remove_all_filters( 'comment_form_default_fields' ); |
| 69 | add_filter( 'comment_form_default_fields', array( $this, 'comment_form_default_fields' ) ); |
| 70 | add_action( 'clear_auth_cookie', array( $this, 'clear_fb_cookies' ) ); |
| 71 | |
| 72 | // Fix comment reply link when `comment_registration` is required. |
| 73 | add_filter( 'comment_reply_link', array( $this, 'comment_reply_link' ), 10, 4 ); |
| 74 | |
| 75 | // Add Verbum. |
| 76 | add_action( 'comment_form_must_log_in_after', array( $this, 'verbum_render_element' ) ); |
| 77 | add_filter( 'comment_form_submit_field', array( $this, 'verbum_render_element' ) ); |
| 78 | add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_assets' ) ); |
| 79 | |
| 80 | // Do things before the comment is accepted. |
| 81 | add_action( 'pre_comment_on_post', array( $this, 'check_comment_allowed' ), 10, 1 ); |
| 82 | add_action( 'pre_comment_on_post', array( $this, 'allow_logged_out_user_to_comment_as_external' ), 100 ); // Set priority high to run after check to make sure they are logged in to the external service. |
| 83 | add_filter( 'preprocess_comment', array( $this, 'verify_external_account' ), 0 ); |
| 84 | |
| 85 | // After the comment is saved, we add meta data to the comment. |
| 86 | add_action( 'comment_post', array( $this, 'add_verbum_meta_data' ) ); |
| 87 | |
| 88 | // Load the Gutenberg editor for comments. |
| 89 | if ( |
| 90 | $this->should_load_gutenberg_comments() |
| 91 | ) { |
| 92 | new \Verbum_Gutenberg_Editor(); |
| 93 | } |
| 94 | |
| 95 | // Filter to ensure JetpackScriptData.site.host and is_wpcom_platform is set, to ensure Jetpack blocks work as expected via Verbum Comments. |
| 96 | add_filter( 'jetpack_public_js_script_data', array( $this, 'add_jetpack_script_data' ), 10, 1 ); |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Get the comment form action url |
| 101 | */ |
| 102 | public function get_form_action() { |
| 103 | return is_jetpack_comments() ? |
| 104 | esc_url_raw( http() . '://' . JETPACK_SERVER__DOMAIN . '/jetpack-comment/' ) : site_url( '/wp-comments-post.php' ); |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * Load the div where Verbum app is rendered. |
| 109 | */ |
| 110 | public function verbum_render_element() { |
| 111 | $color_scheme = get_blog_option( $this->blog_id, 'jetpack_comment_form_color_scheme' ); |
| 112 | $comment_url = $this->get_form_action(); |
| 113 | |
| 114 | if ( ! $color_scheme ) { |
| 115 | // Default to transparent because it is more adaptable than white or dark. |
| 116 | $color_scheme = 'transparent'; |
| 117 | } |
| 118 | |
| 119 | $verbum = '<div class="comment-form__verbum ' . $color_scheme . '"></div>' . $this->hidden_fields(); |
| 120 | |
| 121 | // If the blog requires login, Verbum need to be wrapped in a <form> to work. |
| 122 | // Verbum is given `mustLogIn` to handle the login flow. |
| 123 | if ( get_option( 'comment_registration' ) && ! is_user_logged_in() ) { |
| 124 | // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 125 | echo "<form action=\"$comment_url\" method=\"post\" id=\"commentform\" class=\"comment-form\">$verbum</form>"; |
| 126 | } else { |
| 127 | return $verbum; |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Enqueue Assets |
| 133 | */ |
| 134 | public function enqueue_assets() { |
| 135 | if ( ! \Verbum_Block_Utils::should_show_verbum_comments() && ! $this->should_enqueue_assets ) { |
| 136 | return; |
| 137 | } |
| 138 | |
| 139 | $connect_url = site_url( '/public.api/connect/?action=request' ); |
| 140 | $primary_redirect = get_primary_redirect(); |
| 141 | |
| 142 | if ( strpos( $primary_redirect, '.wordpress.com' ) === false ) { |
| 143 | $connect_url = add_query_arg( 'domain', $primary_redirect, $connect_url ); |
| 144 | } else { |
| 145 | $connect_url = add_query_arg( 'from_comments', 'yes', $connect_url ); |
| 146 | } |
| 147 | |
| 148 | // Enqueue styles and scripts |
| 149 | Assets::register_script( |
| 150 | 'verbum', |
| 151 | '../../build/verbum-comments/verbum-comments.js', |
| 152 | __FILE__, |
| 153 | array( |
| 154 | 'strategy' => 'defer', |
| 155 | 'in_footer' => true, |
| 156 | ) |
| 157 | ); |
| 158 | |
| 159 | wp_enqueue_script( 'wp-i18n' ); |
| 160 | |
| 161 | wp_enqueue_style( 'verbum' ); |
| 162 | \WP_Enqueue_Dynamic_Script::enqueue_script( 'verbum' ); |
| 163 | |
| 164 | // Enqueue settings separately since the main script is dynamic. |
| 165 | // We need the VerbumComments object to be available before the main script is loaded. |
| 166 | wp_register_script( |
| 167 | 'verbum-settings', |
| 168 | false, |
| 169 | array(), |
| 170 | null, // phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion -- No script, so no version needed. |
| 171 | array( |
| 172 | 'strategy' => 'defer', |
| 173 | 'in_footer' => true, |
| 174 | ) |
| 175 | ); |
| 176 | |
| 177 | $blog_details = get_blog_details( $this->blog_id ); |
| 178 | $is_blog_atomic = is_blog_atomic( $blog_details ); |
| 179 | $is_blog_jetpack = is_blog_jetpack( $blog_details ); |
| 180 | |
| 181 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 182 | $subscribe_to_blog = isset( $_GET['stb_enabled'] ) ? boolval( $_GET['stb_enabled'] ) : false; |
| 183 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 184 | $subscribe_to_comment = isset( $_GET['stc_enabled'] ) ? boolval( $_GET['stc_enabled'] ) : false; |
| 185 | |
| 186 | // If it is simple, we set it to true. Simple sites return inconsistent results. |
| 187 | if ( ! $is_blog_atomic && ! $is_blog_jetpack ) { |
| 188 | $subscribe_to_blog = true; |
| 189 | $subscribe_to_comment = true; |
| 190 | } |
| 191 | |
| 192 | // Jetpack Comments client side logged in user data |
| 193 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 194 | $__get = stripslashes_deep( $_GET ); |
| 195 | $email_hash = isset( $__get['hc_useremail'] ) && is_string( $__get['hc_useremail'] ) ? $__get['hc_useremail'] : ''; |
| 196 | $jetpack_username = isset( $__get['hc_username'] ) && is_string( $__get['hc_username'] ) ? $__get['hc_username'] : ''; |
| 197 | $jetpack_user_id = isset( $__get['hc_userid'] ) && is_numeric( $__get['hc_userid'] ) ? (int) $__get['hc_userid'] : 0; |
| 198 | $jetpack_signature = isset( $__get['sig'] ) && is_string( $__get['sig'] ) ? $__get['sig'] : ''; |
| 199 | $iframe_unique_id = isset( $__get['iframe_unique_id'] ) && is_numeric( $__get['iframe_unique_id'] ) ? (int) $__get['iframe_unique_id'] : 0; |
| 200 | list( $jetpack_avatar ) = wpcom_get_avatar_url( "$email_hash@md5.gravatar.com" ); |
| 201 | $comment_registration_enabled = boolval( get_blog_option( $this->blog_id, 'comment_registration' ) ); |
| 202 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 203 | $post_id = isset( $_GET['postid'] ) ? intval( $_GET['postid'] ) : get_queried_object_id(); |
| 204 | $locale = get_locale(); |
| 205 | |
| 206 | $css_mtime = filemtime( ABSPATH . '/widgets.wp.com/verbum-block-editor/block-editor.css' ); |
| 207 | $js_mtime = filemtime( ABSPATH . '/widgets.wp.com/verbum-block-editor/block-editor.min.js' ); |
| 208 | $vbe_cache_buster = max( $js_mtime, $css_mtime ); |
| 209 | $color_scheme = get_blog_option( $this->blog_id, 'jetpack_comment_form_color_scheme' ); |
| 210 | |
| 211 | $hovercard_i18n = array( |
| 212 | 'Edit your profile →' => __( 'Edit your profile →', 'jetpack-mu-wpcom' ), |
| 213 | 'View profile →' => __( 'View profile →', 'jetpack-mu-wpcom' ), |
| 214 | 'Contact' => __( 'Contact', 'jetpack-mu-wpcom' ), |
| 215 | 'Send money' => __( 'Send money', 'jetpack-mu-wpcom' ), |
| 216 | 'Gravatar not found.' => __( 'Gravatar not found.', 'jetpack-mu-wpcom' ), |
| 217 | 'This profile is private.' => __( 'This profile is private.', 'jetpack-mu-wpcom' ), |
| 218 | 'Too Many Requests.' => __( 'Too Many Requests.', 'jetpack-mu-wpcom' ), |
| 219 | 'Internal Server Error.' => __( 'Internal Server Error.', 'jetpack-mu-wpcom' ), |
| 220 | 'Sorry, we are unable to load this Gravatar profile.' => __( 'Sorry, we are unable to load this Gravatar profile.', 'jetpack-mu-wpcom' ), |
| 221 | ); |
| 222 | |
| 223 | wp_add_inline_script( |
| 224 | 'verbum-settings', |
| 225 | 'window.VerbumComments = ' . wp_json_encode( |
| 226 | array( |
| 227 | 'Log in or provide your name and email to leave a reply.' => __( 'Log in or provide your name and email to leave a reply.', 'jetpack-mu-wpcom' ), |
| 228 | 'Log in or provide your name and email to leave a comment.' => __( 'Log in or provide your name and email to leave a comment.', 'jetpack-mu-wpcom' ), |
| 229 | 'Receive web and mobile notifications for posts on this site.' => __( 'Receive web and mobile notifications for posts on this site.', 'jetpack-mu-wpcom' ), |
| 230 | 'Name' => __( 'Name', 'jetpack-mu-wpcom' ), |
| 231 | 'Email (address never made public)' => __( 'Email (address never made public)', 'jetpack-mu-wpcom' ), |
| 232 | 'Website (optional)' => __( 'Website (optional)', 'jetpack-mu-wpcom' ), |
| 233 | 'Leave a reply. (log in optional)' => __( 'Leave a reply. (log in optional)', 'jetpack-mu-wpcom' ), |
| 234 | 'Leave a comment. (log in optional)' => __( 'Leave a comment. (log in optional)', 'jetpack-mu-wpcom' ), |
| 235 | 'Log in to leave a reply.' => __( 'Log in to leave a reply.', 'jetpack-mu-wpcom' ), |
| 236 | 'Log in to leave a comment.' => __( 'Log in to leave a comment.', 'jetpack-mu-wpcom' ), |
| 237 | /* translators: %s is the name of the provider (WordPress, Facebook, Twitter) */ |
| 238 | 'Logged in via %s' => __( 'Logged in via %s', 'jetpack-mu-wpcom' ), |
| 239 | 'Log out' => __( 'Log out', 'jetpack-mu-wpcom' ), |
| 240 | 'Email' => __( 'Email', 'jetpack-mu-wpcom' ), |
| 241 | '(Address never made public)' => __( '(Address never made public)', 'jetpack-mu-wpcom'), // phpcs:ignore PEAR.Functions.FunctionCallSignature.SpaceBeforeCloseBracket |
| 242 | 'Instantly' => __( 'Instantly', 'jetpack-mu-wpcom' ), |
| 243 | 'Daily' => __( 'Daily', 'jetpack-mu-wpcom' ), |
| 244 | 'Reply' => __( 'Reply', 'jetpack-mu-wpcom' ), |
| 245 | 'Comment' => __( 'Comment', 'jetpack-mu-wpcom' ), |
| 246 | 'WordPress' => __( 'WordPress', 'jetpack-mu-wpcom' ), |
| 247 | 'Weekly' => __( 'Weekly', 'jetpack-mu-wpcom' ), |
| 248 | 'Notify me of new posts' => __( 'Notify me of new posts', 'jetpack-mu-wpcom' ), |
| 249 | 'Email me new posts' => __( 'Email me new posts', 'jetpack-mu-wpcom' ), |
| 250 | 'Email me new comments' => __( 'Email me new comments', 'jetpack-mu-wpcom' ), |
| 251 | 'Cancel' => __( 'Cancel', 'jetpack-mu-wpcom' ), |
| 252 | 'Write a comment...' => __( 'Write a comment...', 'jetpack-mu-wpcom' ), |
| 253 | 'Write a reply...' => __( 'Write a reply...', 'jetpack-mu-wpcom' ), |
| 254 | 'Website' => __( 'Website', 'jetpack-mu-wpcom' ), |
| 255 | 'Optional' => __( 'Optional', 'jetpack-mu-wpcom' ), |
| 256 | /* translators: Success message of a modal when user subscribes */ |
| 257 | 'We\'ll keep you in the loop!' => __( 'We\'ll keep you in the loop!', 'jetpack-mu-wpcom' ), |
| 258 | 'Loading your comment...' => __( 'Loading your comment...', 'jetpack-mu-wpcom' ), |
| 259 | /* translators: %s is the name of the site */ |
| 260 | 'Discover more from' => sprintf( __( 'Discover more from %s', 'jetpack-mu-wpcom' ), html_entity_decode( get_bloginfo( 'name' ), ENT_QUOTES ) ), |
| 261 | 'Subscribe now to keep reading and get access to the full archive.' => __( 'Subscribe now to keep reading and get access to the full archive.', 'jetpack-mu-wpcom' ), |
| 262 | 'Continue reading' => __( 'Continue reading', 'jetpack-mu-wpcom' ), |
| 263 | 'Never miss a beat!' => __( 'Never miss a beat!', 'jetpack-mu-wpcom' ), |
| 264 | 'Interested in getting blog post updates? Simply click the button below to stay in the loop!' => __( 'Interested in getting blog post updates? Simply click the button below to stay in the loop!', 'jetpack-mu-wpcom' ), |
| 265 | 'Enter your email address' => __( 'Enter your email address', 'jetpack-mu-wpcom' ), |
| 266 | 'Subscribe' => __( 'Subscribe', 'jetpack-mu-wpcom' ), |
| 267 | 'Comment sent successfully' => __( 'Comment sent successfully', 'jetpack-mu-wpcom' ), |
| 268 | 'Save my name, email, and website in this browser for the next time I comment.' => __( 'Save my name, email, and website in this browser for the next time I comment.', 'jetpack-mu-wpcom' ), |
| 269 | 'hovercardi18n' => $hovercard_i18n, |
| 270 | 'siteId' => $this->blog_id, |
| 271 | 'postId' => $post_id, |
| 272 | 'mustLogIn' => $comment_registration_enabled && ! is_user_logged_in(), |
| 273 | 'requireNameEmail' => boolval( get_blog_option( $this->blog_id, 'require_name_email' ) ), |
| 274 | 'commentRegistration' => $comment_registration_enabled, |
| 275 | 'connectURL' => $connect_url, |
| 276 | 'logoutURL' => html_entity_decode( wp_logout_url(), ENT_COMPAT ), |
| 277 | 'homeURL' => home_url( '/' ), |
| 278 | 'subscribeToBlog' => $subscribe_to_blog, |
| 279 | 'subscribeToComment' => $subscribe_to_comment, |
| 280 | 'isJetpackCommentsLoggedIn' => is_jetpack_comments() && is_jetpack_comments_user_logged_in(), |
| 281 | 'jetpackUsername' => $jetpack_username, |
| 282 | 'jetpackUserId' => $jetpack_user_id, |
| 283 | 'jetpackSignature' => $jetpack_signature, |
| 284 | 'jetpackAvatar' => $jetpack_avatar, |
| 285 | 'enableBlocks' => boolval( $this->should_load_gutenberg_comments() ), |
| 286 | 'enableSubscriptionModal' => boolval( $this->should_show_subscription_modal() ), |
| 287 | 'currentLocale' => $locale, |
| 288 | 'isJetpackComments' => is_jetpack_comments(), |
| 289 | 'allowedBlocks' => \Verbum_Block_Utils::get_allowed_blocks(), |
| 290 | 'embedNonce' => wp_create_nonce( 'embed_nonce' ), |
| 291 | 'verbumBundleUrl' => plugins_url( 'dist/index.js', __FILE__ ), |
| 292 | 'isRTL' => is_rtl(), |
| 293 | 'vbeCacheBuster' => $vbe_cache_buster, |
| 294 | 'iframeUniqueId' => $iframe_unique_id, |
| 295 | 'colorScheme' => $color_scheme, |
| 296 | ), |
| 297 | JSON_UNESCAPED_SLASHES | JSON_HEX_TAG | JSON_HEX_AMP |
| 298 | ), |
| 299 | 'before' |
| 300 | ); |
| 301 | |
| 302 | wp_enqueue_script( 'verbum-settings' ); |
| 303 | |
| 304 | Assets::register_script( |
| 305 | 'verbum-dynamic-loader', |
| 306 | '../../build/verbum-comments/assets/dynamic-loader.js', |
| 307 | __FILE__, |
| 308 | array( |
| 309 | 'strategy' => 'defer', |
| 310 | 'in_footer' => true, |
| 311 | 'enqueue' => true, |
| 312 | ) |
| 313 | ); |
| 314 | } |
| 315 | |
| 316 | /** |
| 317 | * Remove some of the default comment_form args because they are not needed. |
| 318 | * |
| 319 | * @param array $args - The default comment form arguments. |
| 320 | */ |
| 321 | public function comment_form_defaults( $args ) { |
| 322 | $title_reply_default = __( 'Leave a comment', 'jetpack-mu-wpcom' ); |
| 323 | $title_reply = get_option( 'highlander_comment_form_prompt', $title_reply_default ); |
| 324 | |
| 325 | if ( $title_reply === 'Leave a comment' || empty( $title_reply ) ) { |
| 326 | $title_reply = $title_reply_default; |
| 327 | } |
| 328 | |
| 329 | return array_merge( |
| 330 | $args, |
| 331 | array( |
| 332 | 'comment_field' => '', |
| 333 | 'must_log_in' => '', |
| 334 | 'logged_in_as' => '', |
| 335 | 'comment_notes_before' => '', |
| 336 | 'comment_notes_after' => '', |
| 337 | 'title_reply' => $title_reply, |
| 338 | /* translators: % is the original posters name */ |
| 339 | 'title_reply_to' => __( 'Leave a reply to %s', 'jetpack-mu-wpcom' ), |
| 340 | 'cancel_reply_link' => __( 'Cancel reply', 'jetpack-mu-wpcom' ), |
| 341 | 'action' => $this->get_form_action(), |
| 342 | ) |
| 343 | ); |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * Set comment reply link. |
| 348 | * This is to fix the reply link when comment registration is required. |
| 349 | * |
| 350 | * @param string $reply_link - HTML for reply link. |
| 351 | * @param array $args - Default options for reply link. |
| 352 | * @param object $comment - Comment being replied to. |
| 353 | * @param object $post - PostID or WP_Post object comment is going to be displayed on. |
| 354 | */ |
| 355 | public function comment_reply_link( $reply_link, $args, $comment, $post ) { |
| 356 | // This is only necessary if comment_registration is required to post comments |
| 357 | if ( ! get_option( 'comment_registration' ) ) { |
| 358 | return $reply_link; |
| 359 | } |
| 360 | |
| 361 | $comment = get_comment( $comment ); |
| 362 | $respond_id = esc_attr( $args['respond_id'] ); |
| 363 | $add_below = esc_attr( $args['add_below'] ); |
| 364 | /* This is to accommodate some themes that add an SVG to the Reply link like twenty-seventeen. */ |
| 365 | $reply_text = wp_kses( |
| 366 | $args['reply_text'], |
| 367 | array( |
| 368 | 'svg' => array( |
| 369 | 'class' => true, |
| 370 | 'aria-hidden' => true, |
| 371 | 'aria-labelledby' => true, |
| 372 | 'role' => true, |
| 373 | 'xmlns' => true, |
| 374 | 'width' => true, |
| 375 | 'height' => true, |
| 376 | 'viewbox' => true, |
| 377 | ), |
| 378 | 'use' => array( |
| 379 | 'href' => true, |
| 380 | 'xlink:href' => true, |
| 381 | ), |
| 382 | ) |
| 383 | ); |
| 384 | $before_link = wp_kses( $args['before'], wp_kses_allowed_html( 'post' ) ); |
| 385 | $after_link = wp_kses( $args['after'], wp_kses_allowed_html( 'post' ) ); |
| 386 | |
| 387 | $reply_url = esc_url( add_query_arg( 'replytocom', $comment->comment_ID . '#' . $respond_id ) ); |
| 388 | |
| 389 | $link = <<<HTML |
| 390 | $before_link |
| 391 | <a class="comment-reply-link" href="$reply_url" onclick="return addComment.moveForm( '$add_below-$comment->comment_ID', '$comment->comment_ID', '$respond_id', '$post->ID' )">$reply_text</a> |
| 392 | $after_link |
| 393 | HTML; |
| 394 | |
| 395 | return $link; |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * Loop through all available fields and remove them. |
| 400 | * |
| 401 | * @param array $fields - Default comment fields. |
| 402 | * @return array $fields with no HTML. |
| 403 | */ |
| 404 | public function comment_form_default_fields( $fields ) { |
| 405 | foreach ( $fields as $field => $html ) { |
| 406 | remove_all_filters( "comment_form_field_{$field}" ); |
| 407 | add_filter( "comment_form_field_{$field}", '__return_false', 100 ); |
| 408 | } |
| 409 | |
| 410 | return $fields; |
| 411 | } |
| 412 | |
| 413 | /** |
| 414 | * Clear FB comments on logout. wp-login.php doesn't clear these by default. |
| 415 | * |
| 416 | * @return void |
| 417 | */ |
| 418 | public function clear_fb_cookies() { |
| 419 | setcookie( 'wpc_fbc', ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN, false, true ); |
| 420 | } |
| 421 | |
| 422 | /** |
| 423 | * Check Facebook token and return the user data. |
| 424 | */ |
| 425 | public static function verify_facebook_identity() { |
| 426 | $data = isset( $_COOKIE['wpc_fbc'] ) ? wp_parse_args( sanitize_text_field( wp_unslash( $_COOKIE['wpc_fbc'] ) ) ) : array(); |
| 427 | |
| 428 | if ( empty( $data['access_token'] ) ) { |
| 429 | return new WP_Error( 'facebook', __( 'Error: your Facebook login has expired.', 'jetpack-mu-wpcom' ) ); |
| 430 | } |
| 431 | |
| 432 | // Make a new request using the access token we were given. |
| 433 | $request = wp_remote_get( 'https://graph.facebook.com/v6.0/me?fields=name,email,picture,id&access_token=' . rawurlencode( $data['access_token'] ) ); |
| 434 | if ( 200 !== wp_remote_retrieve_response_code( $request ) ) { |
| 435 | return new WP_Error( 'facebook', __( 'Error: your Facebook login has expired.', 'jetpack-mu-wpcom' ) ); |
| 436 | } |
| 437 | |
| 438 | $body = wp_remote_retrieve_body( $request ); |
| 439 | $json = json_decode( $body ); |
| 440 | |
| 441 | if ( ! $body || ! $json ) { |
| 442 | return new WP_Error( 'facebook', __( 'Error: your Facebook login has expired.', 'jetpack-mu-wpcom' ) ); |
| 443 | } |
| 444 | |
| 445 | return $json; |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * Allows a logged out user to leave a comment as a facebook credentialed user. |
| 450 | * Overrides WordPress' core comment_registration option to treat the commenter as "registered" (verified) users. |
| 451 | */ |
| 452 | public function allow_logged_out_user_to_comment_as_external() { |
| 453 | $service = isset( $_POST['hc_post_as'] ) ? sanitize_text_field( wp_unslash( $_POST['hc_post_as'] ) ) : false; // phpcs:ignore WordPress.Security.NonceVerification.Missing -- nonce checked before saving comment |
| 454 | |
| 455 | if ( $service !== 'facebook' ) { |
| 456 | return; |
| 457 | } |
| 458 | |
| 459 | add_filter( 'pre_option_comment_registration', '__return_zero' ); |
| 460 | add_filter( 'pre_option_require_name_email', '__return_zero' ); |
| 461 | } |
| 462 | |
| 463 | /** |
| 464 | * Check if the comment is allowed by verifying the Facebook token. |
| 465 | * |
| 466 | * @param array $comment_data - The comment data. |
| 467 | * @return WP_Error|array The comment data if the comment is allowed, or a WP_Error if not. |
| 468 | */ |
| 469 | public function verify_external_account( $comment_data ) { |
| 470 | $service = isset( $_POST['hc_post_as'] ) ? sanitize_text_field( wp_unslash( $_POST['hc_post_as'] ) ) : false; // phpcs:ignore WordPress.Security.NonceVerification.Missing -- nonce checked before saving comment |
| 471 | |
| 472 | if ( $service === 'facebook' ) { |
| 473 | $fb_comment_data = self::verify_facebook_identity(); |
| 474 | |
| 475 | if ( is_wp_error( $fb_comment_data ) ) { |
| 476 | wp_die( esc_html( $fb_comment_data->get_error_message() ) ); |
| 477 | } |
| 478 | |
| 479 | $comment_data['highlander'] = 'facebook'; |
| 480 | } |
| 481 | |
| 482 | return $comment_data; |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * Verify nonce before accepting comment. |
| 487 | * |
| 488 | * @param int $comment_id The comment ID. |
| 489 | * @return void |
| 490 | */ |
| 491 | public function check_comment_allowed( int $comment_id ) { |
| 492 | // Don't check if we're using Jetpack Comments. |
| 493 | if ( is_jetpack_comments() ) { |
| 494 | return; |
| 495 | } |
| 496 | |
| 497 | // Check for Highlander Nonce. |
| 498 | if ( isset( $_POST['highlander_comment_nonce'] ) ) { |
| 499 | $valid_nonce = false; |
| 500 | $current_user_id = get_current_user_id(); |
| 501 | |
| 502 | if ( wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['highlander_comment_nonce'] ) ), 'highlander_comment' ) ) { |
| 503 | $valid_nonce = true; |
| 504 | } elseif ( function_exists( 'wp_set_current_user' ) ) { |
| 505 | // There randomly occurs a race condition between the logged in/out state of the user. |
| 506 | // Check if their nonce is a logged out nonce. |
| 507 | wp_set_current_user( 0 ); |
| 508 | $valid_nonce = wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['highlander_comment_nonce'] ) ), 'highlander_comment' ); |
| 509 | wp_set_current_user( $current_user_id ); |
| 510 | } |
| 511 | |
| 512 | // All good, proceed. |
| 513 | if ( $valid_nonce ) { |
| 514 | return; |
| 515 | } |
| 516 | |
| 517 | // Log the error to Log2Logstash. |
| 518 | // Related to https://github.com/Automattic/wp-calypso/issues/99436 |
| 519 | if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
| 520 | require_once WP_CONTENT_DIR . '/lib/log2logstash/log2logstash.php'; |
| 521 | |
| 522 | $headers = getallheaders(); |
| 523 | $data = array( |
| 524 | 'session_token' => wp_get_session_token(), |
| 525 | 'editor_type' => isset( $_POST['verbum_loaded_editor'] ) ? sanitize_text_field( wp_unslash( $_POST['verbum_loaded_editor'] ) ) : '', |
| 526 | 'user_agent' => sanitize_text_field( $headers['User-Agent'] ?? '' ), |
| 527 | 'referrer' => esc_url_raw( $headers['Referer'] ?? '' ), |
| 528 | ); |
| 529 | |
| 530 | log2logstash( |
| 531 | array( |
| 532 | 'feature' => 'verbum-comments', |
| 533 | 'message' => 'Pre-comment nonce failed', |
| 534 | 'blog_id' => get_current_blog_id(), |
| 535 | 'user_id' => $current_user_id, |
| 536 | 'host' => sanitize_text_field( $headers['Host'] ?? '' ), |
| 537 | 'comment_id' => $comment_id, |
| 538 | 'extra' => wp_json_encode( $data, JSON_UNESCAPED_SLASHES ), |
| 539 | ) |
| 540 | ); |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | wp_die( esc_html__( 'Sorry, this comment could not be posted.', 'jetpack-mu-wpcom' ) ); |
| 545 | } |
| 546 | |
| 547 | /** |
| 548 | * Add all our custom fields to the comment meta after it is saved. |
| 549 | * |
| 550 | * @param int $comment_id The comment ID. |
| 551 | */ |
| 552 | public function add_verbum_meta_data( $comment_id ) { |
| 553 | $comment_meta = array(); |
| 554 | // phpcs:disable WordPress.Security.NonceVerification.Missing -- nonce checked before saving comment |
| 555 | $allowed_subscription_modal_statuses = array( 'showed', 'hidden_is_blog_member', 'hidden_jetpack', 'hidden_disabled', 'hidden_cookies_disabled', 'hidden_subscribe_not_enabled', 'hidden_already_subscribed', 'hidden_views_limit' ); |
| 556 | $hc_avatar = isset( $_POST['hc_avatar'] ) ? esc_url_raw( wp_unslash( $_POST['hc_avatar'] ) ) : ''; |
| 557 | $hc_userid = isset( $_POST['hc_foreign_user_id'] ) ? sanitize_text_field( wp_unslash( $_POST['hc_foreign_user_id'] ) ) : ''; |
| 558 | $service = isset( $_POST['hc_post_as'] ) ? sanitize_text_field( wp_unslash( $_POST['hc_post_as'] ) ) : ''; |
| 559 | $verbum_loaded_editor = isset( $_POST['verbum_loaded_editor'] ) ? sanitize_text_field( wp_unslash( $_POST['verbum_loaded_editor'] ) ) : ''; |
| 560 | $verbum_subscription_modal_show = isset( $_POST['verbum_show_subscription_modal'] ) && in_array( $_POST['verbum_show_subscription_modal'], $allowed_subscription_modal_statuses, true ) ? sanitize_text_field( wp_unslash( $_POST['verbum_show_subscription_modal'] ) ) : ''; |
| 561 | // phpcs:enable WordPress.Security.NonceVerification.Missing -- nonce checked before saving comment |
| 562 | $allowed_comments_sources = array( 'gutenberg', 'textarea', 'textarea-slow-connection' ); |
| 563 | if ( in_array( $verbum_loaded_editor, $allowed_comments_sources, true ) ) { |
| 564 | bump_stats_extras( 'verbum-comment-editor', $verbum_loaded_editor ); |
| 565 | } |
| 566 | if ( $verbum_subscription_modal_show ) { |
| 567 | bump_stats_extras( 'verbum-subscription-modal', $verbum_subscription_modal_show ); |
| 568 | } |
| 569 | switch ( $service ) { |
| 570 | case 'facebook': |
| 571 | $comment_meta['hc_post_as'] = 'facebook'; |
| 572 | $comment_meta['hc_avatar'] = $hc_avatar; |
| 573 | $comment_meta['hc_foreign_user_id'] = $hc_userid; |
| 574 | |
| 575 | bump_stats_extras( 'verbum-comment-posted', 'facebook' ); |
| 576 | break; |
| 577 | |
| 578 | case 'wordpress': // phpcs:ignore WordPress.WP.CapitalPDangit.MisspelledInText |
| 579 | if ( 'wpcom' === wpcom_blog_site_id_label() ) { |
| 580 | do_action( 'highlander_wpcom_post_comment_bump_stat', $comment_id ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 581 | } |
| 582 | bump_stats_extras( 'verbum-comment-posted', 'wordpress' ); // phpcs:ignore WordPress.WP.CapitalPDangit.MisspelledInText |
| 583 | break; |
| 584 | |
| 585 | case 'jetpack': |
| 586 | if ( is_jetpack_comments() && is_jetpack_comments_user_logged_in() ) { |
| 587 | $comment_meta['hc_post_as'] = 'jetpack'; |
| 588 | $comment_meta['hc_avatar'] = check_and_return_post_string( 'hc_avatar' ); |
| 589 | $comment_meta['hc_foreign_user_id'] = check_and_return_post_string( 'hc_userid' ); |
| 590 | |
| 591 | bump_stats_extras( 'verbum-comment-posted', 'jetpack' ); |
| 592 | } else { |
| 593 | jetpack_comments_die( 'JPC_HIGHLANDER_ADD_COMMENT_META' ); |
| 594 | } |
| 595 | |
| 596 | break; |
| 597 | default: |
| 598 | if ( is_user_logged_in() ) { |
| 599 | bump_stats_extras( 'verbum-comment-posted', 'guest-logged-in' ); |
| 600 | } else { |
| 601 | bump_stats_extras( 'verbum-comment-posted', 'guest' ); |
| 602 | } |
| 603 | break; |
| 604 | } |
| 605 | |
| 606 | foreach ( $comment_meta as $key => $value ) { |
| 607 | add_comment_meta( $comment_id, $key, $value, true ); |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | /** |
| 612 | * Get the hidden fields for the comment form. |
| 613 | */ |
| 614 | public function hidden_fields() { |
| 615 | // Ironically, get_queried_post_id doesn't work inside query loop. |
| 616 | // See: https://github.com/Automattic/wp-calypso/issues/98136 |
| 617 | $queried_post = get_post(); |
| 618 | $queried_post_id = $queried_post ? $queried_post->ID : 0; |
| 619 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 620 | $post_id = isset( $_GET['postid'] ) ? intval( $_GET['postid'] ) : $queried_post_id; |
| 621 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 622 | $is_current_user_subscribed = isset( $_GET['is_current_user_subscribed'] ) ? intval( $_GET['is_current_user_subscribed'] ) : 0; |
| 623 | $nonce = wp_create_nonce( 'highlander_comment' ); |
| 624 | $hidden_fields = get_comment_id_fields( $post_id ) . ' |
| 625 | <input type="hidden" name="highlander_comment_nonce" id="highlander_comment_nonce" value="' . esc_attr( $nonce ) . '" /> |
| 626 | <input type="hidden" name="verbum_show_subscription_modal" value="' . $this->subscription_modal_status() . '" />'; |
| 627 | |
| 628 | if ( is_jetpack_comments() ) { |
| 629 | $hidden_fields .= ' |
| 630 | <input type="hidden" name="jetpack-remote-blogid" value="' . $this->blog_id . '" /> |
| 631 | <input type="hidden" name="jetpack-remote-action" value="comment-post" /> |
| 632 | <input type="hidden" name="is_current_user_subscribed" value="' . $is_current_user_subscribed . '" />'; |
| 633 | |
| 634 | // phpcs:ignore WordPress.Security.NonceVerification.Recommended |
| 635 | $jetpack_nonce = isset( $_GET['jetpack_comments_nonce'] ) ? sanitize_text_field( wp_unslash( $_GET['jetpack_comments_nonce'] ) ) : false; |
| 636 | if ( $jetpack_nonce ) { |
| 637 | $hidden_fields .= '<input type="hidden" name="jetpack_comments_nonce" value="' . esc_attr( $jetpack_nonce ) . '" />'; |
| 638 | } |
| 639 | } |
| 640 | |
| 641 | return '<div class="verbum-form-meta">' . $hidden_fields . '</div>'; |
| 642 | } |
| 643 | |
| 644 | /*** |
| 645 | * Check if we should load the Gutenberg comments. |
| 646 | * |
| 647 | * Block should be carefully loaded to avoid Forums, P2, etc. |
| 648 | */ |
| 649 | public function should_load_gutenberg_comments() { |
| 650 | // Don't load when jetpack or atomic for now, it does not look cool on dark themes. |
| 651 | $is_jetpack_site = 522232 === get_current_blog_id(); |
| 652 | if ( $is_jetpack_site ) { |
| 653 | return false; |
| 654 | } |
| 655 | |
| 656 | // Blocks in comments have been disabled on a simple site |
| 657 | if ( empty( get_option( 'enable_blocks_comments', true ) ) ) { |
| 658 | return false; |
| 659 | } |
| 660 | |
| 661 | return true; |
| 662 | } |
| 663 | |
| 664 | /** |
| 665 | * Check if we should show the subscription modal. |
| 666 | */ |
| 667 | public function should_show_subscription_modal() { |
| 668 | $modal_enabled = boolval( get_blog_option( $this->blog_id, 'jetpack_verbum_subscription_modal', true ) ); |
| 669 | |
| 670 | $is_jetpack_site = 522232 === get_current_blog_id(); // Disable if verbum is served via 'jetpack.wordpress.com' |
| 671 | return ! $is_jetpack_site && ! is_user_member_of_blog( '', $this->blog_id ) && $modal_enabled; |
| 672 | } |
| 673 | |
| 674 | /** |
| 675 | * Get the status of the subscription modal. |
| 676 | */ |
| 677 | public function subscription_modal_status() { |
| 678 | if ( is_user_member_of_blog( '', $this->blog_id ) ) { |
| 679 | return 'hidden_is_blog_member'; |
| 680 | } |
| 681 | if ( is_jetpack_comments() ) { |
| 682 | return 'hidden_jetpack'; |
| 683 | } |
| 684 | if ( ! get_option( 'jetpack_verbum_subscription_modal', true ) ) { |
| 685 | return 'hidden_disabled'; |
| 686 | } |
| 687 | return ''; |
| 688 | } |
| 689 | |
| 690 | /** |
| 691 | * Add Jetpack script data. |
| 692 | * |
| 693 | * @param array $data - The Jetpack script data. |
| 694 | * @return array - The modified Jetpack script data. |
| 695 | */ |
| 696 | public function add_jetpack_script_data( $data ) { |
| 697 | if ( \Verbum_Block_Utils::should_show_verbum_comments() ) { |
| 698 | if ( ! isset( $data['site']['host'] ) ) { |
| 699 | $data['site']['host'] = ( new \Automattic\Jetpack\Status\Host() )->get_known_host_guess(); |
| 700 | } |
| 701 | if ( ! isset( $data['site']['is_wpcom_platform'] ) ) { |
| 702 | $data['site']['is_wpcom_platform'] = ( new \Automattic\Jetpack\Status\Host() )->is_wpcom_platform(); |
| 703 | } |
| 704 | } |
| 705 | return $data; |
| 706 | } |
| 707 | } |