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<title>[38738] trunk: Comments: Improve check for previous comments for authenticated users in `check_comment()`.</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/38738">38738</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/38738","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>rachelbaker</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-10-06 15:50:55 +0000 (Thu, 06 Oct 2016)</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'>Comments: Improve check for previous comments for authenticated users in `check_comment()`.
When the 'comment_whitelist' option is enabled and the commenter is an authenticated user, query for the existence of an approved comment with a matching `user_id`. This allows authenticated users that have changed their email address to bypass having their comment held for moderation.
Props voldemortensen, rachelbaker.
Fixes <a href="https://core.trac.wordpress.org/ticket/28603">#28603</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludescommentphp">trunk/src/wp-includes/comment.php</a></li>
<li><a href="#trunktestsphpunittestscommentcheckCommentphp">trunk/tests/phpunit/tests/comment/checkComment.php</a></li>
</ul>
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<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 2016-10-06 01:29:22 UTC (rev 38737)
+++ trunk/src/wp-includes/comment.php 2016-10-06 15:50:55 UTC (rev 38738)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -110,8 +110,13 @@
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> if ( 1 == get_option('comment_whitelist')) {
</span><span class="cx" style="display: block; padding: 0 10px"> if ( 'trackback' != $comment_type && 'pingback' != $comment_type && $author != '' && $email != '' ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- // expected_slashed ($author, $email)
- $ok_to_comment = $wpdb->get_var("SELECT comment_approved FROM $wpdb->comments WHERE comment_author = '$author' AND comment_author_email = '$email' and comment_approved = '1' LIMIT 1");
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $comment_user = get_user_by( 'email', wp_unslash( $email ) );
+ if ( ! empty( $comment_user->ID ) ) {
+ $ok_to_comment = $wpdb->get_var( $wpdb->prepare( "SELECT comment_approved FROM $wpdb->comments WHERE user_id = %d AND comment_approved = '1' LIMIT 1", $comment_user->ID ) );
+ } else {
+ // expected_slashed ($author, $email)
+ $ok_to_comment = $wpdb->get_var( $wpdb->prepare( "SELECT comment_approved FROM $wpdb->comments WHERE comment_author = %s AND comment_author_email = %s and comment_approved = '1' LIMIT 1", $author, $email ) );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( ( 1 == $ok_to_comment ) &&
</span><span class="cx" style="display: block; padding: 0 10px"> ( empty($mod_keys) || false === strpos( $email, $mod_keys) ) )
</span><span class="cx" style="display: block; padding: 0 10px"> return true;
</span></span></pre></div>
<a id="trunktestsphpunittestscommentcheckCommentphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/comment/checkComment.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/comment/checkComment.php 2016-10-06 01:29:22 UTC (rev 38737)
+++ trunk/tests/phpunit/tests/comment/checkComment.php 2016-10-06 15:50:55 UTC (rev 38738)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -127,4 +127,47 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $results = check_comment( $author, $author_email, $author_url, $comment, $author_ip, $user_agent, $comment_type );
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertTrue( $results );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ /**
+ * @ticket 28603
+ */
+ public function test_should_return_true_when_comment_whitelist_is_enabled_and_user_has_previously_approved_comments_with_different_email() {
+ $subscriber_id = $this->factory()->user->create( array(
+ 'role' => 'subscriber',
+ 'email' => 'sub@example.com',
+ ) );
+
+ // Make sure comment author has an approved comment.
+ $this->factory->comment->create( array( 'user_id' => $subscriber_id, 'comment_approved' => '1', 'comment_author' => 'foo', 'comment_author_email' => 'sub@example.com' ) );
+
+ $subscriber_user = new WP_User( $subscriber_id );
+ $subscriber_user->user_email = 'newsub@example.com';
+
+ wp_update_user( $subscriber_user );
+
+ update_option( 'comment_whitelist', 1 );
+
+ $results = check_comment( 'foo', 'newsub@example.com', 'http://example.com', 'This is a comment.', '66.155.40.249', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:35.0) Gecko/20100101 Firefox/35.0', 'comment', 4 );
+ $this->assertTrue( $results );
+ }
+
+ /**
+ * @ticket 28603
+ */
+ public function test_should_return_false_when_comment_whitelist_is_enabled_and_user_does_not_have_a_previously_approved_comment_with_any_email() {
+ $subscriber_id = $this->factory()->user->create( array(
+ 'role' => 'subscriber',
+ 'email' => 'zig@example.com',
+ ) );
+
+ $subscriber_user = new WP_User( $subscriber_id );
+ $subscriber_user->user_email = 'zag@example.com';
+
+ wp_update_user( $subscriber_user );
+
+ update_option( 'comment_whitelist', 1 );
+
+ $results = check_comment( 'bar', 'zag@example.com', 'http://example.com', 'This is my first comment.', '66.155.40.249', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:35.0) Gecko/20100101 Firefox/35.0', 'comment', 4 );
+ $this->assertFalse( $results );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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