Ticket #37332: 37332-01.patch

post-template.php

@@ -1531 +1531 @@
 function get_the_password_form( $post = 0 ) {
         $post = get_post( $post );
         $label = 'pwbox-' . ( empty($post->ID) ? rand() : $post->ID );
-        $output = '<form action="' . esc_url( site_url( 'wp-login.php?action=postpass', 'login_post' ) ) . '" class="post-password-form" method="post">
+
+        // Display error message if post password is incorrect
+        if ( isset( $_COOKIE['wp-postpass_' . COOKIEHASH] ) )
+                echo '<p><strong>' . get_the_password_form_wrong_password() . '</strong></p>';
+
+        $output .= '<form action="' . esc_url( site_url( 'wp-login.php?action=postpass', 'login_post' ) ) . '" class="post-password-form" method="post">
         <p>' . __( 'This content is password protected. To view it please enter your password below:' ) . '</p>
         <p><label for="' . $label . '">' . __( 'Password:' ) . ' <input name="post_password" id="' . $label . '" type="password" size="20" /></label> <input type="submit" name="Submit" value="' . esc_attr_x( 'Enter', 'post password form' ) . '" /></p></form>
         ';
@@ -1548 +1553 @@
          * @param string $output The password form HTML output.
          */
         return apply_filters( 'the_password_form', $output );
+}
+
+/**
+ * Displays message if incorrect password supplied on protected post.
+ *
+ * @since 4.5.2
+ *
+ * @return string HTML content for the error message if post password inputted incorrectly.
+ */
+function get_the_password_form_wrong_password() {
+
+        $output = esc_html_x('Wrong password. Please try again.', 'incorrect post password');
+
+        /**
+         * Filter the HTML output for the error message if post password inputted incorrectly.
+         *
+         * @since 4.5.2
+         *
+         * @param string $output The error message output.
+         */
+        return apply_filters( 'the_password_form_wrong_password', $output );
 }