Code Coverage
 
Lines
Functions and Methods
Classes and Traits
Total
0.00%
0 / 15
0.00%
0 / 2
 CRAP
0.00%
0 / 1
TatraBankaMailDecryptor
0.00%
0 / 15
0.00%
0 / 2
 72
0.00%
0 / 1
 __construct
0.00%
0 / 2
0.00%
0 / 1
 2
 decrypt
0.00%
0 / 13
0.00%
0 / 1
 56
1<?php
2declare(strict_types=1);
3
4namespace Tomaj\BankMailsParser\Parser\TatraBanka;
5
6class TatraBankaMailDecryptor
7{
8    private string $privateKeyPath;
9
10    private string $passphrase;
11
12    public function __construct(
13        string $privateKeyPath,
14        string $passphrase
15    ) {
16        $this->privateKeyPath = $privateKeyPath;
17        $this->passphrase = $passphrase;
18    }
19
20    public function decrypt(string $contents): ?string
21    {
22        if (!$this->privateKeyPath || !file_exists($this->privateKeyPath)) {
23            throw new \Exception('missing path to TatraBanka PGP private key in config');
24        }
25
26        $privateKey = \OpenPGP_Message::parse(file_get_contents($this->privateKeyPath));
27        foreach ($privateKey as $p) {
28            if (!($p instanceof \OpenPGP_SecretKeyPacket || $p instanceof \OpenPGP_SecretSubkeyPacket)) {
29                continue;
30            }
31
32            $privateKey = \OpenPGP_Crypt_Symmetric::decryptSecretKey($this->passphrase, $p);
33        }
34
35        $msg = \OpenPGP_Message::parse(\OpenPGP::unarmor($contents, 'PGP MESSAGE'));
36
37        $decryptor = new \OpenPGP_Crypt_RSA($privateKey);
38        $decrypted = $decryptor->decrypt($msg);
39
40        if ($decrypted) {
41            return $decrypted->packets[0]->data;
42        }
43
44        return null;
45    }
46}