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<title>[46253] trunk: Editor: Add Nonce Endpoint</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/46253">46253</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/46253","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>iseulde</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2019-09-23 17:46:33 +0000 (Mon, 23 Sep 2019)</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'>Editor: Add Nonce Endpoint

This is a follow up to <a href="https://core.trac.wordpress.org/ticket/47843">#47843</a>, implementing a PHP endpoint and inline scripts 
after the editor package updates. The action was originally added in
https://github.com/WordPress/gutenberg/pull/16683.

Fixes <a href="https://core.trac.wordpress.org/ticket/48076">#48076</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkpackagelockjson">trunk/package-lock.json</a></li>
<li><a href="#trunksrcwpadminadminajaxphp">trunk/src/wp-admin/admin-ajax.php</a></li>
<li><a href="#trunksrcwpadminincludesajaxactionsphp">trunk/src/wp-admin/includes/ajax-actions.php</a></li>
<li><a href="#trunksrcwpincludesscriptloaderphp">trunk/src/wp-includes/script-loader.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkpackagelockjson"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/package-lock.json</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/package-lock.json   2019-09-23 17:39:36 UTC (rev 46252)
+++ trunk/package-lock.json     2019-09-23 17:46:33 UTC (rev 46253)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3502,7 +3502,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        "dependencies": {
</span><span class="cx" style="display: block; padding: 0 10px">                                "file-type": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "3.9.0",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha1-JXoHg4TR24CHvESdEH1SpSZyuek=",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                                        "optional": true
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4665,7 +4665,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                },
</span><span class="cx" style="display: block; padding: 0 10px">                                "uuid": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "2.0.3",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.3.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/uuid/-/uuid-2.0.3.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha1-Z+LoY3lyFVMN/zGOW/nc6/1Hsho=",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                                        "optional": true
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4754,7 +4754,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px">                "bl": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "1.2.2",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "resolved": "http://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                         "integrity": "sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                        "optional": true,
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4940,7 +4940,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px">                "browserify-aes": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "1.2.0",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        "resolved": "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "resolved": "http://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                         "integrity": "sha512-+7CHXqGuspUn/Sl5aO7Ea0xWGAtETPXNSAjHo48JfLdPWcMng33Xe4znFvQweqc/uzk5zSOI3H52CYnjCfb5hA==",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                        "requires": {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -5092,7 +5092,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        "dependencies": {
</span><span class="cx" style="display: block; padding: 0 10px">                                "file-type": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "3.9.0",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha1-JXoHg4TR24CHvESdEH1SpSZyuek=",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                                        "optional": true
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -5099,7 +5099,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                },
</span><span class="cx" style="display: block; padding: 0 10px">                                "uuid": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "2.0.3",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.3.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/uuid/-/uuid-2.0.3.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha1-Z+LoY3lyFVMN/zGOW/nc6/1Hsho=",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                                        "optional": true
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -6007,7 +6007,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        "dependencies": {
</span><span class="cx" style="display: block; padding: 0 10px">                                "cacache": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "10.0.4",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/cacache/-/cacache-10.0.4.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/cacache/-/cacache-10.0.4.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha512-Dph0MzuH+rTQzGPNT9fAnrPmMmjKfST6trxJeK7NQuHRaVw24VzPRWTmg9MpcwOVQZO0E1FBICUlFeNaKPIfHA==",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                                        "requires": {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -7471,7 +7471,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px">                "duplexer": {
</span><span class="cx" style="display: block; padding: 0 10px">                        "version": "0.1.1",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        "resolved": "https://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "resolved": "http://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                         "integrity": "sha1-rOb/gIwc5mtX0ev5eXessCM0z8E=",
</span><span class="cx" style="display: block; padding: 0 10px">                        "dev": true
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -10755,7 +10755,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        "dependencies": {
</span><span class="cx" style="display: block; padding: 0 10px">                                "async": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "0.2.10",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/async/-/async-0.2.10.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E=",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true
</span><span class="cx" style="display: block; padding: 0 10px">                                },
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -10915,7 +10915,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                },
</span><span class="cx" style="display: block; padding: 0 10px">                                "uglify-js": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "2.7.5",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.7.5.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/uglify-js/-/uglify-js-2.7.5.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha1-RhLAx7qu4rp8SH3kkErhIgefLKg=",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                                        "requires": {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -10927,7 +10927,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                },
</span><span class="cx" style="display: block; padding: 0 10px">                                "yargs": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "3.10.0",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true,
</span><span class="cx" style="display: block; padding: 0 10px">                                        "requires": {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -16884,7 +16884,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        "dependencies": {
</span><span class="cx" style="display: block; padding: 0 10px">                                "progress": {
</span><span class="cx" style="display: block; padding: 0 10px">                                        "version": "1.1.8",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        "resolved": "https://registry.npmjs.org/progress/-/progress-1.1.8.tgz",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 "resolved": "http://registry.npmjs.org/progress/-/progress-1.1.8.tgz",
</ins><span class="cx" style="display: block; padding: 0 10px">                                         "integrity": "sha1-4mDHj2Fhzdmw5WzD4Khd4Xx6V74=",
</span><span class="cx" style="display: block; padding: 0 10px">                                        "dev": true
</span><span class="cx" style="display: block; padding: 0 10px">                                }
</span></span></pre></div>
<a id="trunksrcwpadminadminajaxphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/admin-ajax.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/admin-ajax.php 2019-09-23 17:39:36 UTC (rev 46252)
+++ trunk/src/wp-admin/admin-ajax.php   2019-09-23 17:46:33 UTC (rev 46253)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -53,6 +53,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">        'autocomplete-user',
</span><span class="cx" style="display: block; padding: 0 10px">        'dashboard-widgets',
</span><span class="cx" style="display: block; padding: 0 10px">        'logged-in',
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        'rest-nonce',
</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"> $core_actions_post = array(
</span></span></pre></div>
<a id="trunksrcwpadminincludesajaxactionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/ajax-actions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/ajax-actions.php      2019-09-23 17:39:36 UTC (rev 46252)
+++ trunk/src/wp-admin/includes/ajax-actions.php        2019-09-23 17:46:33 UTC (rev 46253)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -5268,3 +5268,12 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        wp_send_json_success( $all_sizes );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+/**
+ * Ajax handler to renew the REST API nonce.
+ *
+ * @since 5.3.0
+ */
+function wp_ajax_rest_nonce() {
+       exit( wp_create_nonce( 'wp_rest' ) );
+}
</ins></span></pre></div>
<a id="trunksrcwpincludesscriptloaderphp"></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/script-loader.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/script-loader.php   2019-09-23 17:39:36 UTC (rev 46252)
+++ trunk/src/wp-includes/script-loader.php     2019-09-23 17:46:33 UTC (rev 46253)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -651,26 +651,19 @@
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px">        $scripts->add_inline_script(
</span><span class="cx" style="display: block; padding: 0 10px">                'wp-api-fetch',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                sprintf(
-                       implode(
-                               "\n",
-                               array(
-                                       '( function() {',
-                                       '       var nonceMiddleware = wp.apiFetch.createNonceMiddleware( "%s" );',
-                                       '       wp.apiFetch.use( nonceMiddleware );',
-                                       '       wp.hooks.addAction(',
-                                       '               "heartbeat.tick",',
-                                       '               "core/api-fetch/create-nonce-middleware",',
-                                       '               function( response ) {',
-                                       '                       if ( response[ "rest_nonce" ] ) {',
-                                       '                               nonceMiddleware.nonce = response[ "rest_nonce" ];',
-                                       '                       }',
-                                       '               }',
-                                       '       );',
-                                       '} )();',
-                               )
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         join(
+                       array(
+                               sprintf(
+                                       'wp.apiFetch.nonceMiddleware = wp.apiFetch.createNonceMiddleware( "%s" );',
+                                       ( wp_installing() && ! is_multisite() ) ? '' : wp_create_nonce( 'wp_rest' )
+                               ),
+                               'wp.apiFetch.use( wp.apiFetch.nonceMiddleware );',
+                               sprintf(
+                                       'wp.apiFetch.nonceEndpoint = "%s";',
+                                       admin_url( 'admin-ajax.php?action=rest-nonce' )
+                               ),
</ins><span class="cx" style="display: block; padding: 0 10px">                         ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        ( wp_installing() && ! is_multisite() ) ? '' : wp_create_nonce( 'wp_rest' )
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 "\n"
</ins><span class="cx" style="display: block; padding: 0 10px">                 ),
</span><span class="cx" style="display: block; padding: 0 10px">                'after'
</span><span class="cx" style="display: block; padding: 0 10px">        );
</span></span></pre>
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