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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Tests for antivirus manager.
*
* @package core_antivirus
* @category phpunit
* @copyright 2016 Ruslan Kabalin, Lancaster University.
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once(__DIR__ . '/fixtures/testable_antivirus.php');
class core_antivirus_testcase extends advanced_testcase {
protected $tempfile;
protected function setUp(): void {
global $CFG;
// Use our special testable fixture plugin.
$CFG->antiviruses = 'testable';
$this->resetAfterTest();
// Create tempfile.
$tempfolder = make_request_directory(false);
$this->tempfile = $tempfolder . '/' . rand();
touch($this->tempfile);
}
protected function tearDown(): void {
@unlink($this->tempfile);
}
public function test_manager_get_antivirus() {
// We are using clamav plugin in the test,
// as the only plugin we know exists for sure.
$antivirusviaget = \core\antivirus\manager::get_antivirus('clamav');
$antivirusdirect = new \antivirus_clamav\scanner();
$this->assertEquals($antivirusdirect, $antivirusviaget);
}
public function test_manager_scan_file_no_virus() {
// Run mock scanning.
$this->assertFileExists($this->tempfile);
$this->assertEmpty(\core\antivirus\manager::scan_file($this->tempfile, 'OK', true));
// File expected to remain in place.
$this->assertFileExists($this->tempfile);
}
public function test_manager_scan_file_error() {
// Run mock scanning.
$this->assertFileExists($this->tempfile);
$this->assertEmpty(\core\antivirus\manager::scan_file($this->tempfile, 'ERROR', true));
// File expected to remain in place.
$this->assertFileExists($this->tempfile);
}
public function test_manager_scan_file_virus() {
// Run mock scanning without deleting infected file.
$this->assertFileExists($this->tempfile);
$this->expectException(\core\antivirus\scanner_exception::class);
$this->assertEmpty(\core\antivirus\manager::scan_file($this->tempfile, 'FOUND', false));
// File expected to remain in place.
$this->assertFileExists($this->tempfile);
// Run mock scanning with deleting infected file.
$this->expectException(\core\antivirus\scanner_exception::class);
$this->assertEmpty(\core\antivirus\manager::scan_file($this->tempfile, 'FOUND', true));
// File expected to be deleted.
$this->assertFileNotExists($this->tempfile);
}
public function test_manager_send_message_to_user_email_scan_file_virus() {
$sink = $this->redirectEmails();
$exception = null;
try {
set_config('notifyemail', 'fake@example.com', 'antivirus');
\core\antivirus\manager::scan_file($this->tempfile, 'FOUND', true);
} catch (\core\antivirus\scanner_exception $ex) {
$exception = $ex;
}
$this->assertNotEmpty($exception);
$result = $sink->get_messages();
$this->assertCount(1, $result);
$this->assertStringContainsString('fake@example.com', $result[0]->to);
$sink->close();
}
public function test_manager_send_message_to_admin_email_scan_file_virus() {
$sink = $this->redirectMessages();
$exception = null;
try {
\core\antivirus\manager::scan_file($this->tempfile, 'FOUND', true);
} catch (\core\antivirus\scanner_exception $ex) {
$exception = $ex;
}
$this->assertNotEmpty($exception);
$result = $sink->get_messages();
$admins = array_keys(get_admins());
$this->assertCount(1, $admins);
$this->assertCount(1, $result);
$this->assertEquals($result[0]->useridto, reset($admins));
$sink->close();
}
public function test_manager_quarantine_file_virus() {
try {
set_config('enablequarantine', true, 'antivirus');
\core\antivirus\manager::scan_file($this->tempfile, 'FOUND', true);
} catch (\core\antivirus\scanner_exception $ex) {
$exception = $ex;
}
$this->assertNotEmpty($exception);
// Quarantined files.
$quarantinedfiles = \core\antivirus\quarantine::get_quarantined_files();
$this->assertEquals(1, count($quarantinedfiles));
// Clean up.
\core\antivirus\quarantine::clean_up_quarantine_folder(time());
$quarantinedfiles = \core\antivirus\quarantine::get_quarantined_files();
$this->assertEquals(0, count($quarantinedfiles));
}
public function test_manager_none_quarantine_file_virus() {
try {
\core\antivirus\manager::scan_file($this->tempfile, 'FOUND', true);
} catch (\core\antivirus\scanner_exception $ex) {
$exception = $ex;
}
$this->assertNotEmpty($exception);
$quarantinedfiles = \core\antivirus\quarantine::get_quarantined_files();
$this->assertEquals(0, count($quarantinedfiles));
}
public function test_manager_scan_data_no_virus() {
// Run mock scanning.
$this->assertEmpty(\core\antivirus\manager::scan_data('OK'));
}
public function test_manager_scan_data_error() {
// Run mock scanning.
$this->assertEmpty(\core\antivirus\manager::scan_data('ERROR'));
}
public function test_manager_scan_data_virus() {
// Run mock scanning.
$this->expectException(\core\antivirus\scanner_exception::class);
$this->assertEmpty(\core\antivirus\manager::scan_data('FOUND'));
}
public function test_manager_send_message_to_user_email_scan_data_virus() {
$sink = $this->redirectEmails();
set_config('notifyemail', 'fake@example.com', 'antivirus');
$exception = null;
try {
\core\antivirus\manager::scan_data('FOUND');
} catch (\core\antivirus\scanner_exception $ex) {
$exception = $ex;
}
$this->assertNotEmpty($exception);
$result = $sink->get_messages();
$this->assertCount(1, $result);
$this->assertStringContainsString('fake@example.com', $result[0]->to);
$sink->close();
}
public function test_manager_send_message_to_admin_email_scan_data_virus() {
$sink = $this->redirectMessages();
$exception = null;
try {
\core\antivirus\manager::scan_data('FOUND');
} catch (\core\antivirus\scanner_exception $ex) {
$exception = $ex;
}
$this->assertNotEmpty($exception);
$result = $sink->get_messages();
$admins = array_keys(get_admins());
$this->assertCount(1, $admins);
$this->assertCount(1, $result);
$this->assertEquals($result[0]->useridto, reset($admins));
$sink->close();
}
public function test_manager_quarantine_data_virus() {
set_config('enablequarantine', true, 'antivirus');
$exception = null;
try {
\core\antivirus\manager::scan_data('FOUND');
} catch (\core\antivirus\scanner_exception $ex) {
$exception = $ex;
}
$this->assertNotEmpty($exception);
// Quarantined files.
$quarantinedfiles = \core\antivirus\quarantine::get_quarantined_files();
$this->assertEquals(1, count($quarantinedfiles));
// Clean up.
\core\antivirus\quarantine::clean_up_quarantine_folder(time());
$quarantinedfiles = \core\antivirus\quarantine::get_quarantined_files();
$this->assertEquals(0, count($quarantinedfiles));
}
public function test_manager_none_quarantine_data_virus() {
$exception = null;
try {
\core\antivirus\manager::scan_data('FOUND');
} catch (\core\antivirus\scanner_exception $ex) {
$exception = $ex;
}
$this->assertNotEmpty($exception);
// No Quarantined files.
$quarantinedfiles = \core\antivirus\quarantine::get_quarantined_files();
$this->assertEquals(0, count($quarantinedfiles));
}
}