2020-02-09 23:02:19 +01:00
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<?php
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2020-06-22 19:09:02 +02:00
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define("WEBBASE_VERSION", "0.1.0-alpha");
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function getProtocol() {
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return stripos($_SERVER['SERVER_PROTOCOL'], 'https') === 0 ? 'https' : 'http';
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}
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function generateRandomString($length): string {
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$randomString = '';
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if ($length > 0) {
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$numCharacters = 26 + 26 + 10; // a-z + A-Z + 0-9
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for ($i = 0; $i < $length; $i++) {
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try {
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$num = random_int(0, $numCharacters - 1);
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} catch (Exception $e) {
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$num = rand(0, $numCharacters - 1);
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}
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2020-06-20 15:49:53 +02:00
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2020-06-22 19:09:02 +02:00
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if ($num < 26) $randomString .= chr(ord('a') + $num);
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else if ($num - 26 < 26) $randomString .= chr(ord('A') + $num - 26);
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else $randomString .= chr(ord('0') + $num - 26 - 26);
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2020-02-09 23:02:19 +01:00
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}
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}
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2020-06-22 19:09:02 +02:00
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return $randomString;
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}
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2020-02-10 00:52:25 +01:00
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2020-06-22 19:09:02 +02:00
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function startsWith($haystack, $needle) {
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$length = strlen($needle);
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return (substr($haystack, 0, $length) === $needle);
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}
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function endsWith($haystack, $needle) {
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$length = strlen($needle);
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if ($length == 0)
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return true;
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return (substr($haystack, -$length) === $needle);
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}
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function intendCode($code, $escape = true) {
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$newCode = "";
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$first = true;
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$brackets = array();
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$intend = 0;
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foreach (explode("\n", $code) as $line) {
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if (!$first) $newCode .= "\n";
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if ($escape) $line = htmlspecialchars($line);
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$line = trim($line);
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if (count($brackets) > 0 && startsWith($line, current($brackets))) {
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$intend = max(0, $intend - 2);
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array_pop($brackets);
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2020-02-09 23:02:19 +01:00
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}
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2020-06-22 19:09:02 +02:00
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$newCode .= str_repeat(" ", $intend);
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$newCode .= $line;
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$first = false;
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2020-02-09 23:02:19 +01:00
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2020-06-22 19:09:02 +02:00
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if (endsWith($line, "{")) {
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$intend += 2;
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array_push($brackets, "}");
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} else if (endsWith($line, "(")) {
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$intend += 2;
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array_push($brackets, ")");
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}
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2020-02-09 23:02:19 +01:00
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}
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2020-06-22 19:09:02 +02:00
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return $newCode;
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}
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2020-02-09 23:02:19 +01:00
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2020-06-22 19:09:02 +02:00
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function replaceCssSelector($sel) {
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return preg_replace("~[.#<>]~", "_", preg_replace("~[:\-]~", "", $sel));
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}
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2020-02-09 23:02:19 +01:00
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2020-06-22 19:09:02 +02:00
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function getClassPath($class, $suffix = true) {
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$path = str_replace('\\', '/', $class);
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$path = array_values(array_filter(explode("/", $path)));
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2020-02-09 23:02:19 +01:00
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2020-06-22 19:09:02 +02:00
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if (strcasecmp($path[0], "api") === 0 && count($path) > 2 && strcasecmp($path[1], "Parameter") !== 0) {
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$path = "Api/" . $path[1] . "API";
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} else {
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$path = implode("/", $path);
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}
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2020-02-09 23:02:19 +01:00
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2020-06-22 19:09:02 +02:00
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$suffix = ($suffix ? ".class" : "");
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return "core/$path$suffix.php";
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}
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2020-02-09 23:02:19 +01:00
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2020-06-22 19:09:02 +02:00
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function createError($msg) {
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return json_encode(array("success" => false, "msg" => $msg));
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}
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2020-02-09 23:02:19 +01:00
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2020-06-22 19:12:14 +02:00
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function serveStatic(string $webRoot, string $file) {
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2020-02-09 23:02:19 +01:00
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2020-06-22 19:09:02 +02:00
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$path = realpath($webRoot . "/" . $file);
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if (!startsWith($path, $webRoot . "/")) {
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http_response_code(406);
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return "<b>Access restricted, requested file outside web root:</b> " . htmlspecialchars($path);
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2020-02-09 23:02:19 +01:00
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}
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2020-06-22 19:09:02 +02:00
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if (!file_exists($path) || !is_file($path) || !is_readable($path)) {
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http_response_code(500);
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return "<b>Unable to read file:</b> " . htmlspecialchars($path);
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2020-02-09 23:02:19 +01:00
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}
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2020-04-03 15:56:04 +02:00
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2020-06-22 19:12:14 +02:00
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$pathInfo = pathinfo($path);
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2020-06-20 20:13:51 +02:00
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2020-06-22 19:09:02 +02:00
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// maybe I will allow more later…
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$allowedExtension = array("html", "htm");
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$ext = $pathInfo["extension"] ?? "";
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if (!in_array($ext, $allowedExtension)) {
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http_response_code(406);
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return "<b>Access restricted:</b> Extension '" . htmlspecialchars($ext) . "' not allowed.";
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2020-04-03 15:56:04 +02:00
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}
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2020-06-22 19:12:14 +02:00
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$mimeType = mime_content_type($path);
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2020-06-22 19:09:02 +02:00
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header("Content-Type: $mimeType");
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2020-06-22 19:12:14 +02:00
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readfile($path);
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2020-06-22 19:09:02 +02:00
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}
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