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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\MathSearch\Swh; |
| 4 | |
| 5 | use MediaWiki\Http\HttpRequestFactory; |
| 6 | use Throwable; |
| 7 | |
| 8 | class Swhid { |
| 9 | private string $url; |
| 10 | private HttpRequestFactory $httpFactory; |
| 11 | |
| 12 | private ?string $snapshot = null; |
| 13 | |
| 14 | /** @var string|null */ |
| 15 | private $snapshotDate; |
| 16 | private int $status; |
| 17 | |
| 18 | private int $wait = 0; |
| 19 | |
| 20 | public function __construct( |
| 21 | HttpRequestFactory $httpFactory, string $url |
| 22 | ) { |
| 23 | $this->url = $url; |
| 24 | $this->httpFactory = $httpFactory; |
| 25 | } |
| 26 | |
| 27 | public function getWait(): int { |
| 28 | return $this->wait; |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * @return string |
| 33 | */ |
| 34 | public function getUrl(): string { |
| 35 | return $this->url; |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * @return string |
| 40 | */ |
| 41 | public function getSnapshot(): ?string { |
| 42 | return $this->snapshot; |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * @return string|null |
| 47 | */ |
| 48 | public function getSnapshotDate() { |
| 49 | return $this->snapshotDate; |
| 50 | } |
| 51 | |
| 52 | public function fetchOrSave() { |
| 53 | return $this->fetchSnapshot() || $this->saveCodeNow(); |
| 54 | } |
| 55 | |
| 56 | public function fetchSnapshot() { |
| 57 | $destination = "https://archive.softwareheritage.org/api/1/origin/$this->url/visit/latest/"; |
| 58 | $body = $this->getBody( $destination, 'GET' ); |
| 59 | if ( $body !== null ) { |
| 60 | $content = json_decode( $body ); |
| 61 | if ( $content->status === 'full' ) { |
| 62 | $this->snapshot = 'swh:1:snp:' . $content->snapshot; |
| 63 | $this->snapshotDate = $content->date; |
| 64 | return true; |
| 65 | } |
| 66 | } else { |
| 67 | $this->snapshot = null; |
| 68 | $this->snapshotDate = null; |
| 69 | } |
| 70 | |
| 71 | return false; |
| 72 | } |
| 73 | |
| 74 | public function getBody( string $destination, string $method = 'GET' ): ?string { |
| 75 | global $wgMathSearchSwhToken; |
| 76 | $req = $this->httpFactory->create( $destination, [ |
| 77 | 'method' => $method, |
| 78 | ] ); |
| 79 | if ( $wgMathSearchSwhToken ) { |
| 80 | $req->setHeader( 'Authorization', 'Bearer ' . $wgMathSearchSwhToken ); |
| 81 | } |
| 82 | $res = $req->execute(); |
| 83 | $this->status = $req->getStatus(); |
| 84 | if ( $res->isOK() ) { |
| 85 | return $req->getContent(); |
| 86 | } |
| 87 | try { |
| 88 | if ( $this->status == 429 ) { |
| 89 | $json = json_decode( $req->getContent() ); |
| 90 | if ( preg_match( '/(?P<seconds>\d+)\s+[sS]/', $json->reason, $match ) ) { |
| 91 | $this->wait = $match['seconds']; |
| 92 | return null; |
| 93 | } |
| 94 | } |
| 95 | } catch ( Throwable $exception ) { |
| 96 | // empty |
| 97 | } |
| 98 | // wait for 1 hour |
| 99 | $this->wait = 3600; |
| 100 | return null; |
| 101 | } |
| 102 | |
| 103 | public function getStatus() { |
| 104 | return $this->status; |
| 105 | } |
| 106 | |
| 107 | public function saveCodeNow() { |
| 108 | $destination = "https://archive.softwareheritage.org/api/1/origin/save/git/url/$this->url/"; |
| 109 | $body = $this->getBody( $destination, 'POST' ); |
| 110 | |
| 111 | return $body !== null; |
| 112 | } |
| 113 | |
| 114 | } |