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<?php |
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/** |
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* Copyright (c) 2014 Victor Dubiniuk <[email protected]> |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. |
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* See the COPYING-README file. |
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*/ |
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namespace OCA\Files_Antivirus; |
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use OCA\Files_Antivirus\Db\Rule; |
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use OCA\Files_Antivirus\Db\RuleMapper; |
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use OCP\ILogger; |
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class Status { |
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/* |
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* The file was not checked (e.g. because the AV daemon wasn't running). |
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*/ |
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const SCANRESULT_UNCHECKED = -1; |
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/* |
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* The file was checked and found to be clean. |
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*/ |
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const SCANRESULT_CLEAN = 0; |
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/* |
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* The file was checked and found to be infected. |
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*/ |
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const SCANRESULT_INFECTED = 1; |
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/* |
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* Should be SCANRESULT_UNCHECKED | SCANRESULT_INFECTED | SCANRESULT_CLEAN |
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*/ |
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protected $numericStatus = self::SCANRESULT_UNCHECKED; |
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/* |
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* Virus name or error message |
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*/ |
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protected $details = ''; |
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/** @var RuleMapper */ |
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protected $ruleMapper; |
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/** @var ILogger */ |
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protected $logger; |
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/** |
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* Status constructor. |
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* |
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* @param RuleMapper $ruleMapper |
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* @param ILogger $logger |
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*/ |
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public function __construct(RuleMapper $ruleMapper, ILogger $logger){ |
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$this->ruleMapper = $ruleMapper; |
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$this->logger = $logger; |
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} |
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/** |
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* Get scan status as integer |
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* @return int |
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*/ |
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public function getNumericStatus(){ |
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return $this->numericStatus; |
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} |
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/** |
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* Get scan status as string |
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* @return string |
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*/ |
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public function getDetails(){ |
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return $this->details; |
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} |
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public function setNumericStatus(int $numericStatus): void { |
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$this->numericStatus = $numericStatus; |
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} |
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public function setDetails(string $details): void { |
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$this->details = $details; |
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} |
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/** |
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* @param string $rawResponse |
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* @param integer $result |
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*/ |
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public function parseResponse($rawResponse, $result = null){ |
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$matches = []; |
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if (is_null($result)){ // Daemon or socket mode |
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try{ |
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$allRules = $this->getResponseRules(); |
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} catch (\Exception $e){ |
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$this->logger->error(__METHOD__.', exception: '.$e->getMessage(), ['app' => 'files_antivirus']); |
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return; |
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} |
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$isMatched = false; |
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foreach ($allRules as $rule){ |
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if (preg_match($rule->getMatch(), $rawResponse, $matches)){ |
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$isMatched = true; |
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$this->numericStatus = (int)$rule->getStatus(); |
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if ((int)$rule->getStatus() ===self::SCANRESULT_CLEAN){ |
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$this->details = ''; |
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} else { |
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$this->details = isset($matches[1]) ? $matches[1] : 'unknown'; |
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} |
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break; |
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} |
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} |
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if (!$isMatched){ |
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$this->numericStatus = self::SCANRESULT_UNCHECKED; |
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$this->details = 'No matching rules. Please check antivirus rules.'; |
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} |
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} else { // Executable mode |
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$scanStatus = $this->ruleMapper->findByResult($result); |
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if (is_array($scanStatus) && count($scanStatus)){ |
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$this->numericStatus = (int)$scanStatus[0]->getStatus(); |
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$this->details = $scanStatus[0]->getDescription(); |
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} |
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switch($this->numericStatus) { |
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case self::SCANRESULT_INFECTED: |
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$report = []; |
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$rawResponse = explode("\n", $rawResponse); |
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foreach ($rawResponse as $line){ |
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if (preg_match('/.*: (.*) FOUND\s*$/', $line, $matches)) { |
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$report[] = $matches[1]; |
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} |
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} |
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$this->details = implode(', ', $report); |
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break; |
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case self::SCANRESULT_UNCHECKED: |
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if (!$this->details) { |
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$this->details = 'No matching rule for exit code ' . $this->numericStatus .'. Please check antivirus rules configuration.' ; |
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} |
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} |
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} |
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1 |
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} |
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/** |
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* @return Rule[] |
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*/ |
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protected function getResponseRules(){ |
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$infectedRules = $this->ruleMapper->findAllMatchedByStatus(self::SCANRESULT_INFECTED); |
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$uncheckedRules = $this->ruleMapper->findAllMatchedByStatus(self::SCANRESULT_UNCHECKED); |
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$cleanRules = $this->ruleMapper->findAllMatchedByStatus(self::SCANRESULT_CLEAN); |
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$infectedRules = $infectedRules ? $infectedRules : []; |
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$uncheckedRules = $uncheckedRules ? $uncheckedRules : []; |
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$cleanRules = $cleanRules ? $cleanRules : []; |
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// order: clean, infected, try to guess error |
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return array_merge($cleanRules, $infectedRules, $uncheckedRules); |
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} |
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public function dispatch(Item $item){ |
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switch($this->getNumericStatus()) { |
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case self::SCANRESULT_UNCHECKED: |
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$item->processUnchecked($this); |
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break; |
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case self::SCANRESULT_INFECTED: |
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$item->processInfected($this); |
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break; |
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case self::SCANRESULT_CLEAN: |
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$item->processClean(); |
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break; |
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} |
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} |
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} |
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nextcloud /
files_antivirus
