first commit

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

@@ -0,0 +1,105 @@
+<?php
+/**
+ * @file classes/security/authorization/internal/RepresentationUploadAccessPolicy.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 RepresentationUploadAccessPolicy
+ *
+ * @ingroup security_authorization_internal
+ *
+ * @brief Policy that checks whether a file can be uploaded to a representation.
+ *   It checks whether the user is allowed to access the representation file stage,
+ *   whether the representation exists, whether it matches the authorized submission,
+ *   and whether it is not part of a published publication. This policy expects an
+ *   authorized submission in the authorization context.
+ */
+
+namespace PKP\security\authorization\internal;
+
+use APP\core\Application;
+use APP\facades\Repo;
+use PKP\core\PKPRequest;
+use PKP\security\authorization\AuthorizationPolicy;
+use PKP\security\authorization\DataObjectRequiredPolicy;
+use PKP\submission\PKPSubmission;
+use PKP\submissionFile\SubmissionFile;
+
+class RepresentationUploadAccessPolicy extends DataObjectRequiredPolicy
+{
+    /** @var int */
+    public $_representationId;
+
+    /**
+     * Constructor
+     *
+     * @param PKPRequest $request
+     * @param array $args request parameters
+     * @param int $representationId
+     */
+    public function __construct($request, &$args, $representationId)
+    {
+        parent::__construct($request, $args, 'user.authorization.accessDenied');
+        $this->_representationId = $representationId;
+    }
+
+    //
+    // Implement template methods from AuthorizationPolicy
+    //
+    /**
+     * @see DataObjectRequiredPolicy::dataObjectEffect()
+     */
+    public function dataObjectEffect()
+    {
+        $assignedFileStages = $this->getAuthorizedContextObject(Application::ASSOC_TYPE_ACCESSIBLE_FILE_STAGES);
+        if (empty($assignedFileStages) || !in_array(SubmissionFile::SUBMISSION_FILE_PROOF, $assignedFileStages)) {
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        if (empty($this->_representationId)) {
+            $this->setAdvice(AuthorizationPolicy::AUTHORIZATION_ADVICE_DENY_MESSAGE, 'user.authorization.representationNotFound');
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        $representationDao = Application::get()->getRepresentationDAO();
+        $representation = $representationDao->getById($this->_representationId);
+
+        if (!$representation) {
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        $submission = $this->getAuthorizedContextObject(Application::ASSOC_TYPE_SUBMISSION);
+        if (!$submission) {
+            $this->setAdvice(AuthorizationPolicy::AUTHORIZATION_ADVICE_DENY_MESSAGE, 'user.authorization.invalidSubmission');
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        $publication = Repo::publication()->get($representation->getData('publicationId'));
+        if (!$publication) {
+            $this->setAdvice(AuthorizationPolicy::AUTHORIZATION_ADVICE_DENY_MESSAGE, 'galley.publicationNotFound');
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        // Publication and submission must match
+        if ($publication->getData('submissionId') !== $submission->getId()) {
+            $this->setAdvice(AuthorizationPolicy::AUTHORIZATION_ADVICE_DENY_MESSAGE, 'user.authorization.invalidPublication');
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        // Representations can not be modified on published publications
+        if ($publication->getData('status') === PKPSubmission::STATUS_PUBLISHED) {
+            $this->setAdvice(AuthorizationPolicy::AUTHORIZATION_ADVICE_DENY_MESSAGE, 'galley.editPublishedDisabled');
+            return AuthorizationPolicy::AUTHORIZATION_DENY;
+        }
+
+        $this->addAuthorizedContextObject(Application::ASSOC_TYPE_REPRESENTATION, $representation);
+
+        return AuthorizationPolicy::AUTHORIZATION_PERMIT;
+    }
+}
+
+if (!PKP_STRICT_MODE) {
+    class_alias('\PKP\security\authorization\internal\RepresentationUploadAccessPolicy', '\RepresentationUploadAccessPolicy');
+}