Changeset 50717 for trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php

Timestamp:

04/14/2021 11:22:07 PM (5 years ago)

Author:

desrosj

Message:

REST API: Allow authors to read their own password protected posts.

Allow authenticated users to read the contents of password protected posts if they have the edit_post meta capability for the post.

Props xknown, zieladam, peterwilsoncc, swissspidy, timothyblynjacobs.

File:

• trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php (modified) (8 diffs)

trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php

@@ -31 +31 @@
          */
         protected $meta;
+
+        /**
+         * Passwordless post access permitted.
+         *
+         * @since 5.7.1
+         * @var int[]
+         */
+        protected $password_check_passed = array();
 
         /**
@@ -150 +158 @@
 
         /**
+         * Override the result of the post password check for REST requested posts.
+         *
+         * Allow users to read the content of password protected posts if they have
+         * previously passed a permission check or if they have the `edit_post` capability
+         * for the post being checked.
+         *
+         * @since 5.7.1
+         *
+         * @param bool    $required Whether the post requires a password check.
+         * @param WP_Post $post     The post been password checked.
+         * @return bool Result of password check taking in to account REST API considerations.
+         */
+        public function check_password_required( $required, $post ) {
+                if ( ! $required ) {
+                        return $required;
+                }
+
+                $post = get_post( $post );
+
+                if ( ! $post ) {
+                        return $required;
+                }
+
+                if ( ! empty( $this->password_check_passed[ $post->ID ] ) ) {
+                        // Password previously checked and approved.
+                        return false;
+                }
+
+                return ! current_user_can( 'edit_post', $post->ID );
+        }
+
+        /**
          * Retrieves a collection of posts.
          *
@@ -315 +355 @@
                 // Allow access to all password protected posts if the context is edit.
                 if ( 'edit' === $request['context'] ) {
-                        add_filter( 'post_password_required', '__return_false' );
+                        add_filter( 'post_password_required', array( $this, 'check_password_required' ), 10, 2 );
                 }
 
@@ -331 +371 @@
                 // Reset filter.
                 if ( 'edit' === $request['context'] ) {
-                        remove_filter( 'post_password_required', '__return_false' );
+                        remove_filter( 'post_password_required', array( $this, 'check_password_required' ) );
                 }
 
@@ -446 +486 @@
                 // Allow access to all password protected posts if the context is edit.
                 if ( 'edit' === $request['context'] ) {
-                        add_filter( 'post_password_required', '__return_false' );
+                        add_filter( 'post_password_required', array( $this, 'check_password_required' ), 10, 2 );
                 }
 
@@ -474 +514 @@
                 }
 
-                // Edit context always gets access to password-protected posts.
-                if ( 'edit' === $request['context'] ) {
+                /*
+                 * Users always gets access to password protected content in the edit
+                 * context if they have the `edit_post` meta capability.
+                 */
+                if (
+                        'edit' === $request['context'] &&
+                        current_user_can( 'edit_post', $post->ID )
+                ) {
                         return true;
                 }
@@ -1729 +1775 @@
 
                 if ( $this->can_access_password_content( $post, $request ) ) {
+                        $this->password_check_passed[ $post->ID ] = true;
                         // Allow access to the post, permissions already checked before.
-                        add_filter( 'post_password_required', '__return_false' );
+                        add_filter( 'post_password_required', array( $this, 'check_password_required' ), 10, 2 );
 
                         $has_password_filter = true;
@@ -1768 +1815 @@
                 if ( $has_password_filter ) {
                         // Reset filter.
-                        remove_filter( 'post_password_required', '__return_false' );
+                        remove_filter( 'post_password_required', array( $this, 'check_password_required' ) );
                 }