Changeset 37741 for trunk/src/wp-admin/includes/ajax-actions.php

Timestamp:

06/17/2016 08:40:04 PM (8 years ago)

Author:

azaozz

Message:

Editor: after inserting a link detect if the URL is broken, first run.

Props iseulde, azaozz.
See #36638.

File:

• trunk/src/wp-admin/includes/ajax-actions.php (modified) (1 diff)

trunk/src/wp-admin/includes/ajax-actions.php

@@ -3833 +3833 @@
     wp_send_json_success( $status );
 }
+
+/**
+ * Ajax handler for testing if an URL exists. Used in the editor.
+ *
+ * @since 4.6.0
+ */
+function wp_ajax_test_url() {
+    if ( ! current_user_can( 'edit_posts' ) || ! wp_verify_nonce( $_POST['nonce'], 'wp-test-url' ) ) {
+        wp_send_json_error();
+    }
+
+    $href = esc_url_raw( $_POST['href'] );
+
+    // Relative URL
+    if ( strpos( $href, '//' ) !== 0 && in_array( $href[0], array( '/', '#', '?' ), true ) ) {
+        $href = get_bloginfo( 'url' ) . $href;
+    }
+
+    $response = wp_safe_remote_get( $href, array(
+        'timeout' => 15,
+        // Use an explicit user-agent
+        'user-agent' => 'WordPress URL Test',
+    ) );
+
+    $message = null;
+
+    if ( is_wp_error( $response ) ) {
+        $error = $response->get_error_message();
+
+        if ( strpos( $message, 'resolve host' ) !== false ) {
+            $message = array( 'error' => __( 'Invalid host name.' ) );
+        }
+
+        wp_send_json_error( $message );
+    }
+
+    if ( wp_remote_retrieve_response_code( $response ) === 404 ) {
+        wp_send_json_error( array( 'error' => __( 'Not found, HTTP error 404.' ) ) );
+    }
+
+    wp_send_json_success();
+}