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<?php
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/**
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* Validator.php
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*
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* Validate requests data before the are passed into the library.
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*
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* @package jaxon-upload
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* @author Thierry Feuzeu <[email protected]>
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* @copyright 2022 Thierry Feuzeu <[email protected]>
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* @license https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
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* @link https://github.com/jaxon-php/jaxon-core
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*/
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namespace Jaxon\Upload\Manager;
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/*
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* See the following links to get explanations about the regexp.
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* http://php.net/manual/en/language.oop5.basic.php
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* http://stackoverflow.com/questions/3195614/validate-class-method-names-with-regex
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* http://www.w3schools.com/charsets/ref_html_utf8.asp
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* http://www.w3schools.com/charsets/ref_utf_latin1_supplement.asp
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*/
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use Jaxon\App\Config\ConfigManager;
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use Jaxon\App\I18n\Translator;
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use function in_array;
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use function is_array;
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use function preg_match;
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class Validator
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{
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/**
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* The config manager
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*
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* @var ConfigManager
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*/
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protected $xConfigManager;
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/**
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* The translator
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*
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* @var Translator
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*/
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protected $xTranslator;
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/**
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* The last error message
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*
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* @var string
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*/
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protected $sErrorMessage;
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public function __construct(ConfigManager $xConfigManager, Translator $xTranslator)
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{
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// Set the config manager
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$this->xConfigManager = $xConfigManager;
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// Set the translator
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$this->xTranslator = $xTranslator;
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}
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/**
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* Get the last error message
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*
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* @return string
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*/
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public function getErrorMessage(): string
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{
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return $this->sErrorMessage;
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}
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/**
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* Validate a temp file name
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*
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* @param string $sVarName The temp file name
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*
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* @return bool
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*/
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public function validateTempFileName(string $sVarName): bool
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{
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$this->sErrorMessage = '';
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return (preg_match('/^[a-zA-Z0-9_\x7f-\xff]*$/', $sVarName) > 0);
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}
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/**
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* Validate a property of an uploaded file
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*
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* @param string $sVarName The uploaded file variable name
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* @param string $sValue The value of the property
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* @param string $sProperty The property name in config options
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* @param string $sField The field name in file data
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*
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* @return bool
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*/
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private function validateFileProperty(string $sVarName, string $sValue, string $sProperty, string $sField): bool
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{
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$xDefault = $this->xConfigManager->getOption('upload.default.' . $sProperty);
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$aAllowed = $this->xConfigManager->getOption('upload.files.' . $sVarName . '.' . $sProperty, $xDefault);
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if(is_array($aAllowed) && !in_array($sValue, $aAllowed))
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{
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$this->sErrorMessage = $this->xTranslator->trans('errors.upload.' . $sField, [$sField => $sValue]);
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return false;
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}
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return true;
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}
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/**
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* Validate the size of an uploaded file
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*
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* @param string $sVarName The uploaded file variable name
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* @param int $nFileSize The uploaded file size
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* @param string $sProperty The property name in config options
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*
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* @return bool
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*/
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private function validateFileSize(string $sVarName, int $nFileSize, string $sProperty): bool
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{
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$xDefault = $this->xConfigManager->getOption('upload.default.' . $sProperty, 0);
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$nSize = $this->xConfigManager->getOption('upload.files.' . $sVarName . '.' . $sProperty, $xDefault);
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if($nSize > 0 && (
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($sProperty == 'max-size' && $nFileSize > $nSize) ||
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($sProperty == 'min-size' && $nFileSize < $nSize)))
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{
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$this->sErrorMessage = $this->xTranslator->trans('errors.upload.' . $sProperty, ['size' => $nFileSize]);
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return false;
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}
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return true;
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}
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/**
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* Validate an uploaded file
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*
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* @param string $sVarName The uploaded file variable name
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* @param File $xFile The uploaded file
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*
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* @return bool
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*/
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public function validateUploadedFile(string $sVarName, File $xFile): bool
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{
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$this->sErrorMessage = '';
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// Verify the file extension
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if(!$this->validateFileProperty($sVarName, $xFile->type(), 'types', 'type'))
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{
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return false;
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}
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// Verify the file extension
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if(!$this->validateFileProperty($sVarName, $xFile->extension(), 'extensions', 'extension'))
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{
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return false;
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}
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// Verify the max size
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if(!$this->validateFileSize($sVarName, $xFile->size(), 'max-size'))
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{
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return false;
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}
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// Verify the min size
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if(!$this->validateFileSize($sVarName, $xFile->size(), 'min-size'))
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{
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return false;
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}
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return true;
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}
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}
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jaxon-php /
jaxon-upload
