g6

2026-01-11 10:26:39 +01:00
1 parent 565c1b9911
commit 28490ce8b3
@@ -0,0 +1,167 @@
+<?php
+
+require_once 'features.php';
+
+///A collection of given paths
+class TurtlePathInfo {
+	public string $content;
+}
+
+///Parse url and execute it
+class TurtleURLObject {
+	public static function create_from_server(bool $lowerCase = true, bool $alternativeURL = true) :TurtleURLObject {
+		$urlParts = explode('?',  trim($_SERVER['REQUEST_URI'], '/'));
+		$urlMark = _parseUrlMark($urlParts);
+		$request = str_replace("..", ".", $urlParts[0]);
+		
+		if ($lowerCase) $request = strtolower($request);
+		if ($alternativeURL) $request = str_replace("-", "/", $request);
+		
+		$res = new TurtleURLObject($request, $urlMark);
+		$res->method = $_SERVER['REQUEST_METHOD'];
+		$res->method_type = explode(',', $_SERVER['HTTP_ACCEPT'] ?? '');
+		return $res;
+	}
+	
+	public string $url;
+	public object $args;
+	public function __construct(string $url, object $args) {
+		$this->url = $url;
+		$this->args = $args;
+	}
+	
+	public string $method;
+	public array $method_type;
+	
+	public function get_body_text() :string {
+		$bodyContent = file_get_contents("php://input");
+		return $bodyContent;
+	}
+	public function get_body_json() :mixed {
+		return json_decode($this->get_body_text());
+	}
+	
+	public function get_html_file(string $file_path): string {
+		if (!file_exists($file_path)) {
+			return "Not found!";
+		} else {
+			return file_get_contents($file_path);
+		}
+	}
+	
+	public function send_text(string $text) :void {
+		header('Content-Type: text/plain');
+		echo $text;
+	}
+	public function send_json(mixed $data) :void {
+		header('Content-Type: application/json');
+		echo json_encode($data);
+	}
+	public function send_image(string $path) :void {
+		$fileExt = pathinfo($path, PATHINFO_EXTENSION);
+		if ($fileExt === "ico") {
+			header("Cache-Control: no-cache, must-revalidate, max-age=0");
+			header("Content-Type: image/x-icon");
+		} else {
+			header("Content-Type: image/$fileExt");
+		}
+		readfile($path);
+	}
+	public function send_custom_file(string $path) :bool {
+		$fileExt = pathinfo($path, PATHINFO_EXTENSION);
+		if (isFileExtImage($fileExt)) {
+			$this->send_image($path);
+		} else if ($fileExt == "json") {
+			$content = file_get_contents($path);
+			if ($content == false) return false;
+			header('Content-Type: application/json');
+			echo $content;
+		} else if ($fileExt == "txt") {
+			$content = file_get_contents($path);
+			if ($content == false) return false;
+			$this->send_text($content);
+		} else if ($fileExt == "js") {
+			header('Content-Type: text/javascript; charset=utf-8');
+			echo file_get_contents($path);
+			return true;
+		} else if ($fileExt == "css") {
+			header("Content-Type: text/css");
+			echo file_get_contents($path);
+		} else if ($fileExt == "html") {
+			echo $this->get_html_file($path);
+		} else {
+			return false;
+		}
+		return true;
+	}
+	
+	public function send_download_file(string $path) :bool {
+		if (!file_exists($path)) return false;
+		header('Content-Description: File Transfer');
+		header('Content-Type: application/octet-stream');
+		header('Content-Disposition: attachment; filename="'.basename($path).'"');
+		header('Expires: 0');
+		header('Cache-Control: must-revalidate');
+		header('Pragma: public');
+		header('Content-Length: ' . filesize($path));
+		
+		readfile($path);
+		return true;
+	}
+	
+	public function is_image_request() :bool {
+		foreach ($this->method_type as $type) {
+			if (!str_starts_with($type, "image/")) return false;
+		}
+		return true;
+	}
+	
+	public function handle_request(TurtlePathInfo $path_info): void {
+		$referer = $_SERVER['HTTP_REFERER'] ?? '';
+
+		$filePath = $path_info->content . $this->url;
+		
+		if (strlen($this->url) == 0) {
+			$filePath = "{$path_info->content}START.html";
+		}
+		
+		//-------------Image-Pages-------------------//
+		else if (
+			!empty($referer) && $this->is_image_request()
+		) {
+			if (file_exists($filePath)) {
+				$this->send_image($filePath);
+				return;
+			} else {
+				$filePath = NULL;
+			}
+		}
+		
+		//-------------HTML-Pages-------------------//
+				
+		if ($filePath === NULL || !file_exists($filePath)) {
+			$filePath = "{$path_info->content}NOT-FOUND.html";
+			http_response_code(404);
+		}
+		
+		$this->send_custom_file($filePath);
+	}
+}
+
+function _parseUrlMark($urlParts) :object {
+	$res = (object) [];
+	if (count($urlParts) == 1) return $res;
+	foreach (explode('&', $urlParts[1]) as $part) {
+		$arr = explode('=', $part, 2);
+		$cnt = count($arr);
+		switch ($cnt) {
+			case 1:
+				$res->{$arr[0]} = 1;
+				break;
+			case 2:
+				$res->{$arr[0]} = $arr[1];
+				break;
+		}
+	}
+	return $res;
+}