chrisburge

Patch is below:

From ff56242192f8f824adcddfac08d18cdcb3319af7 Mon Sep 17 00:00:00 2001
From: Chris Burge
Date: Wed, 6 Sep 2017 12:43:16 -0500
Subject: [PATCH] Support external increment

---
 tmpl/menu.php                           | 24 +++++++++++++++++
 wp-version-in-query-string-modifier.php | 48 ++++++++++++++++++++++++++++++++-
 2 files changed, 71 insertions(+), 1 deletion(-)

diff --git a/tmpl/menu.php b/tmpl/menu.php
index 0c553c8..d089839 100644
--- a/tmpl/menu.php
+++ b/tmpl/menu.php
@@ -16,6 +16,10 @@
             $check_i = ' checked="checked"';
             $disable_increment = false;
     }
+    if (!isset($options['externalKey'])) {
+        $options['externalKey'] = md5(uniqid(rand(), true));
+    }
+
 ?>
 <div class='wrap'>
     <h2><?php echo WPVQSM_LONG_NAME; ?></h2>
@@ -34,6 +38,10 @@
                     <th><label><input type='radio' <?php echo $check_i; ?> value='i' name='selection'>Cache Buster</label></th>
                     <td><code><?php echo $site_url; ?>/wp-includes/js/jquery/jquery.js?ver=<span id='inc_index'><?php echo $ndx; ?></span></code> <input type='button' value='Increment' id='increment' class='button-primary'></td>
                 </tr>
+                <tr class="external-key">
+                    <th></th>
+                    <td><label for="external-key">External Key: </label><input type="text" name="externalKey" size="32" value="<?php print $options['externalKey']; ?>"/><br /><br />The cache buster can be externally incremented using the URL below:<br /><br /><code><?php print get_site_url() . 'wp-json/wpvqsm/v1/increment?key=<span class="external-key-inline">' . $options['externalKey'] . '</span>'; ?></code></td>
+                </tr>
                 <tr>
                     <th><label><input type='radio' <?php echo $check_r; ?> value='r' name='selection'> Remove Version</label></th>
                     <td><code><?php echo $site_url; ?>/wp-includes/js/jquery/jquery.js</code></td>
@@ -87,5 +95,21 @@
             }
 		});
     });
+    var selection = $('input:radio[name=selection]');
+    selection.change(function () {
+        var value = this.value;
+        if (value != "i") {
+            $('.external-key').hide();
+        }
+        else {
+            $('.external-key').show();
+        }
+    });
+    var externalKey = $('input:text[name=externalKey]');
+    externalKey.change(function () {
+        var value = this.value;
+        console.log(value);
+        $('.external-key-inline').text(value);
+    });
 })(jQuery);
 </script>
\ No newline at end of file
diff --git a/wp-version-in-query-string-modifier.php b/wp-version-in-query-string-modifier.php
index 537d17f..1eb5b88 100644
--- a/wp-version-in-query-string-modifier.php
+++ b/wp-version-in-query-string-modifier.php
@@ -134,6 +134,7 @@ function wpvqsm_update_callback() {
     $options = wpvqsm_get_options();
     $options['selection'] = $_POST['selection'];
     $options['addTime'] = $_POST['addTime'];
+    $options['externalKey'] = $_POST['externalKey'];
     wpvqsm_update_options( $options );
     wp_safe_redirect( 'options-general.php?settings-updated=true&page=' . WPVQSM );
 }
@@ -162,6 +163,49 @@ function wpvqsm_ajax_callback() {
     die( 1 );
 }
 
+/**
+ * Callback function for REST API.
+ *
+ * @since 1.x
+ *
+ */
+function wpvqsm_external_increment_callback(WP_REST_Request $data) {
+
+    // Get options.
+    $options = wpvqsm_get_options();
+
+    if ($options['selection'] != 'i') {
+        return rest_ensure_response( array("enabled"=>false));
+    }
+
+    // Get key from query string and validate.
+    $query_string = $data->get_query_params();
+    $key = $query_string['key'];
+    if (is_null($options['externalKey']) || $key != $options['externalKey']) {
+        return rest_ensure_response( array("authorized"=>false));
+    }
+
+    // Update Increment value.
+    ++$options['increment'];
+    wpvqsm_update_options( $options );
+
+    // rest_ensure_response() wraps the data we want to return into a WP_REST_Response, and ensures it will be properly returned.
+    return rest_ensure_response( array("authorized"=>true, "increment"=>$options['increment']) );
+}
+
+/**
+ * Register REST route for endpoint.
+ *
+ * @since 1.x
+ *
+ */
+function wpvqsm_external_increment() {
+    register_rest_route( 'wpvqsm/v1', '/increment', array(
+       'methods'  => 'GET',
+       'callback' => 'wpvqsm_external_increment_callback',
+   ) );
+}
+
 /**
  * plugin activation process
  *
@@ -224,4 +268,6 @@ if ( is_admin() ){
 }
 
 add_filter( 'script_loader_src', WPVQSM. 'modify_version' );
-add_filter( 'style_loader_src', WPVQSM. 'modify_version' );   
\ No newline at end of file
+add_filter( 'style_loader_src', WPVQSM. 'modify_version' );
+
+add_action( 'rest_api_init', WPVQSM . 'external_increment' );
\ No newline at end of file
-- 
2.14.1.windows.1