+
+/**
+ * Handles the submission of a comment, usually posted to wp-comments-post.php via a comment form.
+ *
+ * This function expects unslashed data, as opposed to functions such as `wp_new_comment()` which
+ * expect slashed data.
+ *
+ * @since 4.4.0
+ *
+ * @param array $comment_data {
+ * Comment data.
+ *
+ * @type string|int $comment_post_ID The ID of the post that relates to the comment.
+ * @type string $author The name of the comment author.
+ * @type string $email The comment author email address.
+ * @type string $url The comment author URL.
+ * @type string $comment The content of the comment.
+ * @type string|int $comment_parent The ID of this comment's parent, if any. Default 0.
+ * @type string $_wp_unfiltered_html_comment The nonce value for allowing unfiltered HTML.
+ * }
+ * @return WP_Comment|WP_Error A WP_Comment object on success, a WP_Error object on failure.
+ */
+function wp_handle_comment_submission( $comment_data ) {
+
+ $comment_post_ID = $comment_parent = 0;
+ $comment_author = $comment_author_email = $comment_author_url = $comment_content = $_wp_unfiltered_html_comment = null;
+
+ if ( isset( $comment_data['comment_post_ID'] ) ) {
+ $comment_post_ID = (int) $comment_data['comment_post_ID'];
+ }
+ if ( isset( $comment_data['author'] ) && is_string( $comment_data['author'] ) ) {
+ $comment_author = trim( strip_tags( $comment_data['author'] ) );
+ }
+ if ( isset( $comment_data['email'] ) && is_string( $comment_data['email'] ) ) {
+ $comment_author_email = trim( $comment_data['email'] );
+ }
+ if ( isset( $comment_data['url'] ) && is_string( $comment_data['url'] ) ) {
+ $comment_author_url = trim( $comment_data['url'] );
+ }
+ if ( isset( $comment_data['comment'] ) && is_string( $comment_data['comment'] ) ) {
+ $comment_content = trim( $comment_data['comment'] );
+ }
+ if ( isset( $comment_data['comment_parent'] ) ) {
+ $comment_parent = absint( $comment_data['comment_parent'] );
+ }
+ if ( isset( $comment_data['_wp_unfiltered_html_comment'] ) && is_string( $comment_data['_wp_unfiltered_html_comment'] ) ) {
+ $_wp_unfiltered_html_comment = trim( $comment_data['_wp_unfiltered_html_comment'] );
+ }
+
+ $post = get_post( $comment_post_ID );
+
+ if ( empty( $post->comment_status ) ) {
+
+ /**
+ * Fires when a comment is attempted on a post that does not exist.
+ *
+ * @since 1.5.0
+ *
+ * @param int $comment_post_ID Post ID.
+ */
+ do_action( 'comment_id_not_found', $comment_post_ID );
+
+ return new WP_Error( 'comment_id_not_found' );
+
+ }
+
+ // get_post_status() will get the parent status for attachments.
+ $status = get_post_status( $post );
+
+ if ( ( 'private' == $status ) && ! current_user_can( 'read_post', $comment_post_ID ) ) {
+ return new WP_Error( 'comment_id_not_found' );
+ }
+
+ $status_obj = get_post_status_object( $status );
+
+ if ( ! comments_open( $comment_post_ID ) ) {
+
+ /**
+ * Fires when a comment is attempted on a post that has comments closed.
+ *
+ * @since 1.5.0
+ *
+ * @param int $comment_post_ID Post ID.
+ */
+ do_action( 'comment_closed', $comment_post_ID );
+
+ return new WP_Error( 'comment_closed', __( 'Sorry, comments are closed for this item.' ), 403 );
+
+ } elseif ( 'trash' == $status ) {
+
+ /**
+ * Fires when a comment is attempted on a trashed post.
+ *
+ * @since 2.9.0
+ *
+ * @param int $comment_post_ID Post ID.
+ */
+ do_action( 'comment_on_trash', $comment_post_ID );
+
+ return new WP_Error( 'comment_on_trash' );
+
+ } elseif ( ! $status_obj->public && ! $status_obj->private ) {
+
+ /**
+ * Fires when a comment is attempted on a post in draft mode.
+ *
+ * @since 1.5.1
+ *
+ * @param int $comment_post_ID Post ID.
+ */
+ do_action( 'comment_on_draft', $comment_post_ID );
+
+ return new WP_Error( 'comment_on_draft' );
+
+ } elseif ( post_password_required( $comment_post_ID ) ) {
+
+ /**
+ * Fires when a comment is attempted on a password-protected post.
+ *
+ * @since 2.9.0
+ *
+ * @param int $comment_post_ID Post ID.
+ */
+ do_action( 'comment_on_password_protected', $comment_post_ID );
+
+ return new WP_Error( 'comment_on_password_protected' );
+
+ } else {
+
+ /**
+ * Fires before a comment is posted.
+ *
+ * @since 2.8.0
+ *
+ * @param int $comment_post_ID Post ID.
+ */
+ do_action( 'pre_comment_on_post', $comment_post_ID );
+
+ }
+
+ // If the user is logged in
+ $user = wp_get_current_user();
+ if ( $user->exists() ) {
+ if ( empty( $user->display_name ) ) {
+ $user->display_name=$user->user_login;
+ }
+ $comment_author = $user->display_name;
+ $comment_author_email = $user->user_email;
+ $comment_author_url = $user->user_url;
+ $user_ID = $user->ID;
+ if ( current_user_can( 'unfiltered_html' ) ) {
+ if ( ! isset( $comment_data['_wp_unfiltered_html_comment'] )
+ || ! wp_verify_nonce( $comment_data['_wp_unfiltered_html_comment'], 'unfiltered-html-comment_' . $comment_post_ID )
+ ) {
+ kses_remove_filters(); // start with a clean slate
+ kses_init_filters(); // set up the filters
+ }
+ }
+ } else {
+ if ( get_option( 'comment_registration' ) ) {
+ return new WP_Error( 'not_logged_in', __( 'Sorry, you must be logged in to post a comment.' ), 403 );
+ }
+ }
+
+ $comment_type = '';
+ $max_lengths = wp_get_comment_fields_max_lengths();
+
+ if ( get_option( 'require_name_email' ) && ! $user->exists() ) {
+ if ( 6 > strlen( $comment_author_email ) || '' == $comment_author ) {
+ return new WP_Error( 'require_name_email', __( '<strong>ERROR</strong>: please fill the required fields (name, email).' ), 200 );
+ } elseif ( ! is_email( $comment_author_email ) ) {
+ return new WP_Error( 'require_valid_email', __( '<strong>ERROR</strong>: please enter a valid email address.' ), 200 );
+ }
+ }
+
+ if ( isset( $comment_author ) && $max_lengths['comment_author'] < mb_strlen( $comment_author, '8bit' ) ) {
+ return new WP_Error( 'comment_author_column_length', __( '<strong>ERROR</strong>: your name is too long.' ), 200 );
+ }
+
+ if ( isset( $comment_author_email ) && $max_lengths['comment_author_email'] < strlen( $comment_author_email ) ) {
+ return new WP_Error( 'comment_author_email_column_length', __( '<strong>ERROR</strong>: your email address is too long.' ), 200 );
+ }
+
+ if ( isset( $comment_author_url ) && $max_lengths['comment_author_url'] < strlen( $comment_author_url ) ) {
+ return new WP_Error( 'comment_author_url_column_length', __( '<strong>ERROR</strong>: your url is too long.' ), 200 );
+ }
+
+ if ( '' == $comment_content ) {
+ return new WP_Error( 'require_valid_comment', __( '<strong>ERROR</strong>: please type a comment.' ), 200 );
+ } elseif ( $max_lengths['comment_content'] < mb_strlen( $comment_content, '8bit' ) ) {
+ return new WP_Error( 'comment_content_column_length', __( '<strong>ERROR</strong>: your comment is too long.' ), 200 );
+ }
+
+ $commentdata = compact(
+ 'comment_post_ID',
+ 'comment_author',
+ 'comment_author_email',
+ 'comment_author_url',
+ 'comment_content',
+ 'comment_type',
+ 'comment_parent',
+ 'user_ID'
+ );
+
+ $comment_id = wp_new_comment( wp_slash( $commentdata ) );
+ if ( ! $comment_id ) {
+ return new WP_Error( 'comment_save_error', __( '<strong>ERROR</strong>: The comment could not be saved. Please try again later.' ), 500 );
+ }
+
+ return get_comment( $comment_id );
+
+}