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<?php |
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namespace Padosoft\TesseraSanitaria; |
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/** |
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* Class CryptoHelper |
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* @package Padosoft\TesseraSanitaria |
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*/ |
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class CryptoHelper |
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{ |
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use traits\Errorable; |
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protected $cert_file=""; |
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protected $tmp_path=""; |
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protected $openssl_exe_path=""; |
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public $output=""; |
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protected $returned_val=""; |
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/** |
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* CryptoHelper constructor. |
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* |
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* @param $cert_file |
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* @param $tmp_path |
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* @param $openssl_exe_path |
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*/ |
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public function __construct($cert_file, $tmp_path, $openssl_exe_path) |
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{ |
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$this->cert_file = $cert_file; |
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$this->tmp_path = $tmp_path; |
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$this->openssl_exe_path = $openssl_exe_path; |
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} |
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/** |
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* @param $str |
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* |
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* @return string |
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*/ |
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public function rsaEncrypt($str) |
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{ |
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if(!$this->checkPath()){ |
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return ''; |
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} |
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// Path e nomi dei file temporanei |
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$rand_name = $this->getRandName(); |
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$file_source = $this->tmp_path.$rand_name.".txt"; |
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$file_dest = $this->tmp_path.$rand_name.".enc"; |
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// Scrive file temporaneo sorgente |
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file_put_contents($file_source, $str); |
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// creo il comando openssl |
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$exec = $this->getCommand($file_source, $file_dest); |
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// Esegue istruzione openssl, creando file temporaneo con testo criptato |
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$this->excecuteCommand($exec); |
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// Ricava il testo criptato dal file appena creato |
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$encrypted_txt = $this->getEncryptedString($file_dest); |
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//clean |
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$this->deleteSourceFile($file_source); |
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return $encrypted_txt; |
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} |
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/** |
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* @return bool |
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*/ |
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public function getError() |
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{ |
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$result = FALSE; |
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if($this->returned_val == 1){ |
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$result = TRUE; |
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} |
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return $result; |
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} |
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/** |
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* @return bool |
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*/ |
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private function checkPath() |
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{ |
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if (!file_exists($this->tmp_path)) { |
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$this->addError('Il percorso della path temporanea non è valido: ' . $this->tmp_path); |
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return false; |
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} |
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if (!file_exists($this->cert_file)) { |
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$this->addError('Il percorso del file del certificato non è valido: ' . $this->cert_file); |
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return false; |
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} |
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if ($this->openssl_exe_path != '' && !file_exists($this->openssl_exe_path)) { |
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$this->addError('Il percorso di OpenSSL non è valido: ' . $this->openssl_exe_path); |
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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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* @param $file_source |
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* @param $file_dest |
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* |
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* @return string |
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*/ |
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private function getCommand($file_source, $file_dest) |
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{ |
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return $this->openssl_exe_path . "openssl rsautl -encrypt -in " . $file_source . " -out " . $file_dest . " -inkey " . $this->cert_file . " -certin -pkcs"; |
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} |
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/** |
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* @param $exec |
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*/ |
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private function excecuteCommand($exec) |
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{ |
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$this->output = ""; |
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exec($exec . " 2>&1", $this->output, $this->returned_val); |
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if ($this->returned_val == 1) // errore |
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{ |
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$a = $this->output; |
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$this->addError($a[0]); |
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} |
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} |
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/** |
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* @param $file_dest |
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* |
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* @return string |
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*/ |
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private function getEncryptedString($file_dest) |
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{ |
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$encrypted_txt = ""; |
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if (file_exists($file_dest)) { |
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$encrypted_txt = file_get_contents($file_dest); |
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// Cancella i file di appoggio |
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unlink($file_dest); |
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} else { |
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$this->addError("Criptazione fallita (file destinazione non esistente)"); |
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} |
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return $encrypted_txt; |
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} |
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/** |
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* @param $file_source |
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*/ |
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private function deleteSourceFile($file_source) |
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{ |
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if (file_exists($file_source)) { |
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unlink($file_source); |
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} else { |
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$this->addError("Criptazione fallita (file sorgente non esistente)"); |
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} |
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} |
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/** |
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* @return string |
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*/ |
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private function getRandName() |
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{ |
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return md5(time() . mt_rand(1, 99999)); |
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} |
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} |
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padosoft /
tessera-sanitaria
