Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
93.65% |
59 / 63 |
|
33.33% |
1 / 3 |
CRAP | |
0.00% |
0 / 1 |
| SafeRemoteMediaDownloader | |
93.65% |
59 / 63 |
|
33.33% |
1 / 3 |
25.16 | |
0.00% |
0 / 1 |
| download | |
100.00% |
34 / 34 |
|
100.00% |
1 / 1 |
12 | |||
| isSafeUrl | |
86.36% |
19 / 22 |
|
0.00% |
0 / 1 |
11.31 | |||
| isPrivateIp | |
85.71% |
6 / 7 |
|
0.00% |
0 / 1 |
2.01 | |||
| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace ImovelZapAi\Importing\Application\Services; |
| 6 | |
| 7 | use Illuminate\Support\Facades\Http; |
| 8 | use Illuminate\Support\Facades\Storage; |
| 9 | |
| 10 | final class SafeRemoteMediaDownloader |
| 11 | { |
| 12 | /** |
| 13 | * @return array{path: string, checksum: string, mime: string}|null |
| 14 | */ |
| 15 | public function download(string $url, string $propertyId, int $order): ?array |
| 16 | { |
| 17 | if (! $this->isSafeUrl($url)) { |
| 18 | return null; |
| 19 | } |
| 20 | |
| 21 | $timeout = (int) config('importing.media.timeout_seconds', 15); |
| 22 | $maxBytes = (int) config('importing.media.max_bytes', 8 * 1024 * 1024); |
| 23 | $allowed = config('importing.media.allowed_mimes', ['image/jpeg', 'image/png', 'image/webp']); |
| 24 | |
| 25 | $response = Http::timeout($timeout) |
| 26 | ->withOptions(['allow_redirects' => ['max' => 3]]) |
| 27 | ->withHeaders(['User-Agent' => 'ImovelZapAi-Importing/1.0']) |
| 28 | ->get($url); |
| 29 | |
| 30 | if (! $response->successful()) { |
| 31 | return null; |
| 32 | } |
| 33 | |
| 34 | $body = $response->body(); |
| 35 | if (strlen($body) === 0 || strlen($body) > $maxBytes) { |
| 36 | return null; |
| 37 | } |
| 38 | |
| 39 | $mime = (string) ($response->header('Content-Type') ?: ''); |
| 40 | $mime = strtolower(trim(explode(';', $mime)[0])); |
| 41 | |
| 42 | if ($mime === '' || ! in_array($mime, $allowed, true)) { |
| 43 | $finfo = new \finfo(FILEINFO_MIME_TYPE); |
| 44 | $mime = (string) $finfo->buffer($body); |
| 45 | if (! in_array($mime, $allowed, true)) { |
| 46 | return null; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | $checksum = hash('sha256', $body); |
| 51 | $extension = match ($mime) { |
| 52 | 'image/png' => 'png', |
| 53 | 'image/webp' => 'webp', |
| 54 | default => 'jpg', |
| 55 | }; |
| 56 | |
| 57 | $relative = "properties/{$propertyId}/import-{$order}-{$checksum}.{$extension}"; |
| 58 | Storage::disk('public')->put($relative, $body); |
| 59 | |
| 60 | return [ |
| 61 | 'path' => $relative, |
| 62 | 'checksum' => $checksum, |
| 63 | 'mime' => $mime, |
| 64 | ]; |
| 65 | } |
| 66 | |
| 67 | public function isSafeUrl(string $url): bool |
| 68 | { |
| 69 | if (! filter_var($url, FILTER_VALIDATE_URL)) { |
| 70 | return false; |
| 71 | } |
| 72 | |
| 73 | $parts = parse_url($url); |
| 74 | if ($parts === false) { |
| 75 | return false; |
| 76 | } |
| 77 | |
| 78 | $scheme = strtolower((string) ($parts['scheme'] ?? '')); |
| 79 | if (! in_array($scheme, ['http', 'https'], true)) { |
| 80 | return false; |
| 81 | } |
| 82 | |
| 83 | $host = (string) ($parts['host'] ?? ''); |
| 84 | if ($host === '' || strcasecmp($host, 'localhost') === 0) { |
| 85 | return false; |
| 86 | } |
| 87 | |
| 88 | $ips = []; |
| 89 | if (filter_var($host, FILTER_VALIDATE_IP)) { |
| 90 | $ips[] = $host; |
| 91 | } else { |
| 92 | $resolved = @gethostbynamel($host) ?: []; |
| 93 | $ips = $resolved; |
| 94 | } |
| 95 | |
| 96 | if ($ips === []) { |
| 97 | return false; |
| 98 | } |
| 99 | |
| 100 | foreach ($ips as $ip) { |
| 101 | if ($this->isPrivateIp($ip)) { |
| 102 | return false; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | return true; |
| 107 | } |
| 108 | |
| 109 | private function isPrivateIp(string $ip): bool |
| 110 | { |
| 111 | if (! filter_var($ip, FILTER_VALIDATE_IP)) { |
| 112 | return true; |
| 113 | } |
| 114 | |
| 115 | return filter_var( |
| 116 | $ip, |
| 117 | FILTER_VALIDATE_IP, |
| 118 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE |
| 119 | ) === false; |
| 120 | } |
| 121 | } |