<?php
/**
 * @file classes/security/authorization/OjsSubmissionAccessPolicy.inc.php
 *
 * Copyright (c) 2013-2015 Simon Fraser University Library
 * Copyright (c) 2000-2015 John Willinsky
 * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
 *
 * @class OjsSubmissionAccessPolicy
 * @ingroup security_authorization
 *
 * @brief Class to control access to OJS's submission editing components
 */

import('classes.security.authorization.internal.JournalPolicy');
import('lib.pkp.classes.security.authorization.RoleBasedHandlerOperationPolicy');

class OjsSubmissionAccessPolicy extends JournalPolicy {
	/**
	 * Constructor
	 * @param $request PKPRequest
	 * @param $args array
	 * @param $roleAssignments array
	 * @param $submissionParameterName string
	 */
	function OjsSubmissionAccessPolicy(&$request, &$args, $roleAssignments, $submissionParameterName = 'articleId') {
		parent::JournalPolicy($request);

		// Create a "permit overrides" policy set that specifies
		// editor and copyeditor access to submissions.
		$submissionEditingPolicy = new PolicySet(COMBINING_PERMIT_OVERRIDES);

		//
		// Editor roles (Editor and Section Editor) policy
		//
		$editorsPolicy = new PolicySet(COMBINING_DENY_OVERRIDES);

		// Editorial components can only be called if there's a
		// valid section editor submission in the request.
		// FIXME: We should find a way to check whether the user actually
		// is a (section) editor before we execute this expensive policy.
		import('classes.security.authorization.internal.SectionEditorSubmissionRequiredPolicy');
		$editorsPolicy->addPolicy(new SectionEditorSubmissionRequiredPolicy($request, $args, $submissionParameterName));

		$editorRolesPolicy = new PolicySet(COMBINING_PERMIT_OVERRIDES);

		// Editors can access all operations.
		$editorRolesPolicy->addPolicy(new RoleBasedHandlerOperationPolicy($request, ROLE_ID_EDITOR, $roleAssignments[ROLE_ID_EDITOR]));

		// Section editors
		$sectionEditorPolicy = new PolicySet(COMBINING_DENY_OVERRIDES);
		// 1) Section editors can access all remote operations ...
		$sectionEditorPolicy->addPolicy(new RoleBasedHandlerOperationPolicy($request, ROLE_ID_SECTION_EDITOR, $roleAssignments[ROLE_ID_SECTION_EDITOR]));

		// 2) ... but only if the requested submission has been explicitly assigned to them.
		import('classes.security.authorization.internal.SectionSubmissionAssignmentPolicy');
		$sectionEditorPolicy->addPolicy(new SectionSubmissionAssignmentPolicy($request));
		$editorRolesPolicy->addPolicy($sectionEditorPolicy);

		$editorsPolicy->addPolicy($editorRolesPolicy);

		$submissionEditingPolicy->addPolicy($editorsPolicy);


		//
		// Copyeditor policy
		//
		$copyeditorPolicy = new PolicySet(COMBINING_DENY_OVERRIDES);

		// 1) Copyeditors can only access editorial components when a valid
		//    copyeditor submission is in the request ...
		import('classes.security.authorization.internal.CopyeditorSubmissionRequiredPolicy');
		$copyeditorPolicy->addPolicy(new CopyeditorSubmissionRequiredPolicy($request, $args, $submissionParameterName));

		// 2) ... If that's the case then copyeditors can access all remote operations ...
		$copyeditorPolicy->addPolicy(new RoleBasedHandlerOperationPolicy($request, ROLE_ID_COPYEDITOR, $roleAssignments[ROLE_ID_SECTION_EDITOR]));

		// 3) ... but only if the requested submission has been explicitly assigned to them.
		import('classes.security.authorization.internal.CopyeditorSubmissionAssignmentPolicy');
		$copyeditorPolicy->addPolicy(new CopyeditorSubmissionAssignmentPolicy($request));

		$submissionEditingPolicy->addPolicy($copyeditorPolicy);


		// Add the submission editing policies to this policy set.
		$this->addPolicy($submissionEditingPolicy);
	}
}

?>