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<title>[42888] trunk/src/wp-includes: Privacy: add functionality for exporting personal data from comments.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/42888">42888</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/42888","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>azaozz</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2018-03-28 17:24:06 +0000 (Wed, 28 Mar 2018)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Privacy: add functionality for exporting personal data from comments.
Props allendav, xkon.
Fixes <a href="https://core.trac.wordpress.org/ticket/43440">#43440</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludescommentphp">trunk/src/wp-includes/comment.php</a></li>
<li><a href="#trunksrcwpincludesdefaultfiltersphp">trunk/src/wp-includes/default-filters.php</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludescommentphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/comment.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/comment.php 2018-03-28 16:23:19 UTC (rev 42887)
+++ trunk/src/wp-includes/comment.php 2018-03-28 17:24:06 UTC (rev 42888)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3274,3 +3274,104 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return get_comment( $comment_id );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+/**
+ * Registers the personal data exporter for comments
+ *
+ * @param array $exporters An array of personal data exporters.
+ * @return array An array of personal data exporters.
+ */
+function wp_register_comment_personal_data_exporter( $exporters ) {
+ $exporters[] = array(
+ 'exporter_friendly_name' => __( 'WordPress Comments' ),
+ 'callback' => 'wp_comments_personal_data_exporter',
+ );
+
+ return $exporters;
+}
+
+/**
+ * Finds and exports personal data associated with an email address from the comments table.
+ *
+ * @param string $email_address The comment author email address.
+ * @param int $page Comment page.
+ * @return array An array of personal data.
+ */
+function wp_comments_personal_data_exporter( $email_address, $page = 1 ) {
+
+ // Technically, strtolower isn't necessary since get_comments will match email insensitive
+ // But it is a good example for plugin developers whose targets might not be as generous
+ $email_address = trim( strtolower( $email_address ) );
+
+ // Limit us to 500 comments at a time to avoid timing out
+ $number = 500;
+ $page = (int) $page;
+
+ $data_to_export = array();
+
+ $comments = get_comments(
+ array(
+ 'author_email' => $email_address,
+ 'number' => $number,
+ 'paged' => $page,
+ 'order_by' => 'comment_ID',
+ 'order' => 'ASC',
+ )
+ );
+
+ $comment_prop_to_export = array(
+ 'comment_author' => __( 'Comment Author' ),
+ 'comment_author_email' => __( 'Comment Author Email' ),
+ 'comment_author_url' => __( 'Comment Author URL' ),
+ 'comment_author_IP' => __( 'Comment Author IP' ),
+ 'comment_agent' => __( 'Comment Agent' ),
+ 'comment_date' => __( 'Comment Date' ),
+ 'comment_content' => __( 'Comment Content' ),
+ 'comment_link' => __( 'Comment URL' ),
+ );
+
+ foreach ( (array) $comments as $comment ) {
+ $comment_data_to_export = array();
+
+ foreach ( $comment_prop_to_export as $key => $name ) {
+ $value = '';
+
+ switch( $key ) {
+ case 'comment_author':
+ case 'comment_author_email':
+ case 'comment_author_url':
+ case 'comment_author_IP':
+ case 'comment_agent':
+ case 'comment_date':
+ $value = $comment->$key;
+ break;
+
+ case 'comment_content':
+ $value = get_comment_text( $comment->comment_ID );
+ break;
+
+ case 'comment_link':
+ $value = get_comment_link( $comment->comment_ID );
+ break;
+ }
+
+ if ( ! empty( $value ) ) {
+ $comment_data_to_export[] = array( 'name' => $name, 'value' => $value );
+ }
+ }
+
+ $data_to_export[] = array(
+ 'group_id' => 'comments',
+ 'group_label' => __( 'Comments' ),
+ 'item_id' => "comment-{$comment->comment_ID}",
+ 'data' => $comment_data_to_export,
+ );
+ }
+
+ $done = count( $comments ) < $number;
+
+ return array(
+ 'data' => $data_to_export,
+ 'done' => $done,
+ );
+}
</ins></span></pre></div>
<a id="trunksrcwpincludesdefaultfiltersphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/default-filters.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/default-filters.php 2018-03-28 16:23:19 UTC (rev 42887)
+++ trunk/src/wp-includes/default-filters.php 2018-03-28 17:24:06 UTC (rev 42888)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -328,6 +328,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'do_pings', 'do_all_pings', 10, 1 );
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'do_robots', 'do_robots' );
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'set_comment_cookies', 'wp_set_comment_cookies', 10, 3 );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+add_filter( 'wp_privacy_personal_data_exporters', 'wp_register_comment_personal_data_exporter', 10 );
</ins><span class="cx" style="display: block; padding: 0 10px"> add_action( 'sanitize_comment_cookies', 'sanitize_comment_cookies' );
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'admin_print_scripts', 'print_emoji_detection_script' );
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'admin_print_scripts', 'print_head_scripts', 20 );
</span></span></pre>
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