55 lines
1.5 KiB
PHP
55 lines
1.5 KiB
PHP
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<?php
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ini_set('display_errors', 1);
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ini_set('display_startup_errors', 1);
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error_reporting(E_ALL);
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// polyfill because this is PHP7
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function str_starts_with($haystack, $needle) {
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$lh = strlen($haystack);
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$ln = strlen($needle);
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if ($ln > $lh) return false;
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return substr($haystack, 0, $ln) == $needle;
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}
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$i = @$_GET["i"];
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if (!isset($_GET["i"])) {
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http_response_code(400);
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die("no image url");
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}
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$c = curl_init($i);
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curl_setopt($c, CURLOPT_FOLLOWLOCATION, false);
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$clear = false;
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$buffer = array();
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curl_setopt($c, CURLOPT_HEADERFUNCTION, function($c, $h) {
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global $clear, $buffer;
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if (!$clear) {
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if (str_starts_with(strtolower($h), "content-type:")) {
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$i = explode(" ", str_replace("\r\n", "", $h));
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if (str_starts_with($i[count($i) - 1], "image/")) {
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$clear = true;
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for($j = 0; $j < count($buffer); $j++) {
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header($buffer[$j]);
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}
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header($h);
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} elseif (str_starts_with($i[count($i) - 1], "video/")) {
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header("Location: /rautafarmi/video-file.png");
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die();
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} else {
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http_response_code(302);
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header("Location: /rautafarmi/404.png");
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die();
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}
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}
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else array_push($buffer, $h);
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}
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else header($h);
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return strlen($h);
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});
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curl_exec($c);
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if (curl_error($c) != "") {
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http_response_code(302);
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header("Location: /rautafarmi/404.png");
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}
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curl_close($c);
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