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75 lines
1.5 KiB
PHP
75 lines
1.5 KiB
PHP
<?php
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namespace Cijber\OpenSSL;
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use FFI;
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/**
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* Holds instance of the FFI object
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* This class is also responsible for free-ing all global used resources
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* @package Cijber\OpenSSL
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*/
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class Instance
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{
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const HEADERS = [
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"openssl.h",
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"engine.h",
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"generic.h",
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"crypto.h",
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"asn1.h",
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"evp.h",
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"x509.h",
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"pkcs7.h"
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];
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/**
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* @var FFI
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*/
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private ?FFI $ffi = null;
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/**
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* Load FFI object based on header file located in resources/openssl.h
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*/
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public function load()
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{
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$code = "";
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$lineCounter = 0;
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$lines = [];
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foreach (static::HEADERS as $header) {
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$lines[$header] = $lineCounter;
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$code .= file_get_contents(__DIR__ . "/../../resources/" . $header);
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$code .= "\n";
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$lineCounter = count(explode("\n", $code));
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}
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$this->ffi = FFI::cdef($code, "libcrypto.so");
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}
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public function init()
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{
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$this->load();
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$this->ffi->ERR_load_crypto_strings();
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$this->ffi->OPENSSL_add_all_algorithms_conf();
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$this->ffi->OPENSSL_config(null);
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}
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public function __destruct()
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{
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if ($this->ffi === null) {
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return;
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}
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$this->ffi->EVP_cleanup();
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$this->ffi->CRYPTO_cleanup_all_ex_data();
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$this->ffi->ERR_free_strings();
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}
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public function getFFI(): FFI
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{
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return $this->ffi;
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}
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} |