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<title>[41012] trunk: Customize: Prevent edge case fatal error when attempting to save changes to a changeset that had previously been corrupted.</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/41012">41012</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/41012","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>westonruter</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2017-07-06 07:04:11 +0000 (Thu, 06 Jul 2017)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Customize: Prevent edge case fatal error when attempting to save changes to a changeset that had previously been corrupted.
Check return value of `WP_Customize_Manager::get_changeset_post_data()` and return if error instead of assuming it is an array.
Amends <a href="https://core.trac.wordpress.org/changeset/38810">[38810]</a>.
See <a href="https://core.trac.wordpress.org/ticket/30937">#30937</a>.
Fixes <a href="https://core.trac.wordpress.org/ticket/41252">#41252</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesclasswpcustomizemanagerphp">trunk/src/wp-includes/class-wp-customize-manager.php</a></li>
<li><a href="#trunktestsphpunittestscustomizemanagerphp">trunk/tests/phpunit/tests/customize/manager.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludesclasswpcustomizemanagerphp"></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/class-wp-customize-manager.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-customize-manager.php 2017-07-06 01:34:40 UTC (rev 41011)
+++ trunk/src/wp-includes/class-wp-customize-manager.php 2017-07-06 07:04:11 UTC (rev 41012)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2263,6 +2263,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $existing_changeset_data = $this->get_changeset_post_data( $changeset_post_id );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( is_wp_error( $existing_changeset_data ) ) {
+ return $existing_changeset_data;
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Fail if attempting to publish but publish hook is missing.
</span></span></pre></div>
<a id="trunktestsphpunittestscustomizemanagerphp"></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/customize/manager.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/customize/manager.php 2017-07-06 01:34:40 UTC (rev 41011)
+++ trunk/tests/phpunit/tests/customize/manager.php 2017-07-06 07:04:11 UTC (rev 41012)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1292,6 +1292,46 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Ensure that save_changeset_post method bails updating an underlying changeset which is invalid.
+ *
+ * @ticket 41252
+ * @covers WP_Customize_Manager::save_changeset_post
+ * @covers WP_Customize_Manager::get_changeset_post_data
+ */
+ function test_save_changeset_post_for_bad_changeset() {
+ $uuid = wp_generate_uuid4();
+ $post_id = wp_insert_post( array(
+ 'post_type' => 'customize_changeset',
+ 'post_content' => 'INVALID_JSON',
+ 'post_name' => $uuid,
+ 'post_status' => 'auto-draft',
+ 'post_date' => gmdate( 'Y-m-d H:i:s', strtotime( '-3 days' ) ),
+ ) );
+ $manager = $this->create_test_manager( $uuid );
+ $args = array(
+ 'data' => array(
+ 'blogname' => array(
+ 'value' => 'Test',
+ ),
+ ),
+ );
+
+ $r = $manager->save_changeset_post( $args );
+ $this->assertInstanceOf( 'WP_Error', $r );
+ if ( function_exists( 'json_last_error' ) ) {
+ $this->assertEquals( 'json_parse_error', $r->get_error_code() );
+ }
+
+ wp_update_post( array(
+ 'ID' => $post_id,
+ 'post_content' => 'null',
+ ) );
+ $r = $manager->save_changeset_post( $args );
+ $this->assertInstanceOf( 'WP_Error', $r );
+ $this->assertEquals( 'expected_array', $r->get_error_code() );
+ }
+
+ /**
</ins><span class="cx" style="display: block; padding: 0 10px"> * Register scratchpad setting.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @param WP_Customize_Manager $wp_customize Manager.
</span></span></pre>
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