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lib/pkp/classes/security/authorization/internal/SubmissionAuthorPolicy.php

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+<?php
+/**
+ * @file classes/security/authorization/internal/SubmissionAuthorPolicy.php
+ *
+ * Copyright (c) 2014-2021 Simon Fraser University
+ * Copyright (c) 2000-2021 John Willinsky
+ * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
+ *
+ * @class SubmissionAuthorPolicy
+ *
+ * @ingroup security_authorization_internal
+ *
+ * @brief Class to control access to a submission based on authorship.
+ *
+ * NB: This policy expects a previously authorized submission in the
+ * authorization context.
+ */
+
+namespace PKP\security\authorization\internal;
+
+use APP\core\Application;
+use APP\facades\Repo;
+use APP\submission\Submission;
+use PKP\core\PKPApplication;
+use PKP\core\PKPRequest;
+use PKP\security\authorization\AuthorizationPolicy;
+use PKP\security\Role;
+use PKP\user\User;
+
+class SubmissionAuthorPolicy extends AuthorizationPolicy
+{
+    /** @var PKPRequest */
+    public $_request;
+
+    /**
+     * Constructor
+     *
+     * @param PKPRequest $request
+     */
+    public function __construct($request)
+    {
+        parent::__construct('user.authorization.submissionAuthor');
+        $this->_request = $request;
+    }
+
+    //
+    // Implement template methods from AuthorizationPolicy
+    //
+    /**
+     * @see AuthorizationPolicy::effect()
+     */
+    public function effect()
+    {
+        // Get the user
+        $user = $this->_request->getUser();
+        if (!$user instanceof User) {
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        // Get the submission
+        $submission = $this->getAuthorizedContextObject(Application::ASSOC_TYPE_SUBMISSION);
+        if (!$submission instanceof Submission) {
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        $context = $this->_request->getContext();
+
+        // Check authorship of the submission. Any ROLE_ID_AUTHOR assignment will do.
+        $accessibleWorkflowStages = Repo::user()->getAccessibleWorkflowStages(
+            $user->getId(),
+            $context->getId(),
+            $submission,
+            $this->getAuthorizedContextObject(PKPApplication::ASSOC_TYPE_USER_ROLES)
+        );
+
+        if (empty($accessibleWorkflowStages)) {
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        foreach ($accessibleWorkflowStages as $roles) {
+            if (in_array(Role::ROLE_ID_AUTHOR, $roles)) {
+                $this->addAuthorizedContextObject(Application::ASSOC_TYPE_ACCESSIBLE_WORKFLOW_STAGES, $accessibleWorkflowStages);
+                return AuthorizationPolicy::AUTHORIZATION_PERMIT;
+            }
+        }
+
+        return AuthorizationPolicy::AUTHORIZATION_DENY;
+    }
+}
+
+if (!PKP_STRICT_MODE) {
+    class_alias('\PKP\security\authorization\internal\SubmissionAuthorPolicy', '\SubmissionAuthorPolicy');
+}