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| 1 | <?php declare(strict_types=1); |
| 2 | /** |
| 3 | * PrivateBin |
| 4 | * |
| 5 | * a zero-knowledge paste bin |
| 6 | * |
| 7 | * @link https://github.com/PrivateBin/PrivateBin |
| 8 | * @copyright 2012 Sébastien SAUVAGE (sebsauvage.net) |
| 9 | * @license https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License |
| 10 | */ |
| 11 | |
| 12 | namespace PrivateBin\Proxy; |
| 13 | |
| 14 | use PrivateBin\Configuration; |
| 15 | |
| 16 | /** |
| 17 | * YourlsProxy |
| 18 | * |
| 19 | * Forwards a URL for shortening to YOURLS (your own URL shortener) and stores |
| 20 | * the result. |
| 21 | */ |
| 22 | class YourlsProxy extends AbstractProxy |
| 23 | { |
| 24 | /** |
| 25 | * Overrides the abstract parent function to get the proxy URL. |
| 26 | * |
| 27 | * @param Configuration $conf |
| 28 | * @return string |
| 29 | */ |
| 30 | protected function _getProxyUrl(Configuration $conf): string |
| 31 | { |
| 32 | return $conf->getKey('apiurl', 'yourls'); |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * Overrides the abstract parent function to get contents from YOURLS API. |
| 37 | * |
| 38 | * @access protected |
| 39 | * @param Configuration $conf |
| 40 | * @param string $link |
| 41 | * @return array |
| 42 | */ |
| 43 | protected function _getProxyPayload(Configuration $conf, string $link): array |
| 44 | { |
| 45 | return array( |
| 46 | 'method' => 'POST', |
| 47 | 'header' => "Content-Type: application/x-www-form-urlencoded\r\n", |
| 48 | 'content' => http_build_query( |
| 49 | array( |
| 50 | 'signature' => $conf->getKey('signature', 'yourls'), |
| 51 | 'format' => 'json', |
| 52 | 'action' => 'shorturl', |
| 53 | 'url' => $link, |
| 54 | ) |
| 55 | ), |
| 56 | ); |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * Extracts the short URL from the YOURLS API response. |
| 61 | * |
| 62 | * @access protected |
| 63 | * @param array $data |
| 64 | * @return ?string |
| 65 | */ |
| 66 | protected function _extractShortUrl(array $data): ?string |
| 67 | { |
| 68 | if ( |
| 69 | array_key_exists('statusCode', $data) && |
| 70 | $data['statusCode'] == 200 && |
| 71 | array_key_exists('shorturl', $data) |
| 72 | ) { |
| 73 | return $data['shorturl']; |
| 74 | } |
| 75 | return null; |
| 76 | } |
| 77 | } |