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Turtle committed
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+139
@@ -0,0 +1,139 @@
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<?php
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class CouchDB {
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public string $db_file;
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public string $def_db_file;
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public TurtleURLObject $url_obj;
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public function __construct(string $db_file, string $def_db_file, TurtleURLObject $url_obj) {
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$this->db_file = $db_file;
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$this->def_db_file = $def_db_file;
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$this->url_obj = $url_obj;
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}
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public function getFile(): object {
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if (file_exists($this->db_file)) {
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$content = json_decode(file_get_contents($this->db_file));
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if (json_last_error() === JSON_ERROR_NONE) {
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return $content;
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}
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}
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if (file_exists($this->def_db_file)) {
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$content = json_decode(file_get_contents($this->def_db_file));
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if (json_last_error() === JSON_ERROR_NONE) {
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return $content;
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}
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}
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return (object) [];
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}
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public function setFile(object $content): void {
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file_put_contents($this->db_file, str_replace(" ", "\t", json_encode($content, JSON_PRETTY_PRINT)));
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}
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public function sendError(string $msg, int $code = 404) :bool {
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http_response_code($code);
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$this->url_obj->send_json(["ok" => false, "reason" => $msg]);
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return false;
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}
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public function sendData(object $data = new stdClass()) :bool {
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$data->ok = true;
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$this->url_obj->send_json($data);
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return true;
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}
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public function execute(): bool {
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$method = strtoupper($this->url_obj->method);
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$args = $this->url_obj->args;
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//path
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$pathParts = explode("/", trim($this->url_obj->url ?? "", "/"));
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if (!empty($pathParts) && strtolower($pathParts[0]) == "couchdb") {
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array_splice($pathParts, 0, 1);
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}
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if (empty($pathParts)) return $this->sendData();
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$dbName = $pathParts[0] ?? null;
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$docId = null;
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if (sizeof($pathParts) > 1) $docId = $pathParts[1] ?? null;
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if (!$dbName) return $this->sendError("wrong_usage");
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//data
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$db_obj = $this->getFile();
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$jsonBody = null;
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$rawBody = $this->url_obj->get_body_text();
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if ($rawBody !== "") {
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$jsonBody = json_decode($rawBody, true);
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if (!is_array($jsonBody) && !is_object($jsonBody)) $jsonBody = null;
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else $jsonBody = (object) $jsonBody;
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}
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//get data
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$obj = null;
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if (isset($db_obj->$dbName) && is_object($db_obj->$dbName)) {
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if ($docId && isset($db_obj->$dbName->$docId) && is_object($db_obj->$dbName->$docId)) {
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$obj = $db_obj->$dbName->$docId;
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} else if ($method != "PUT" && !($method == "GET" && $docId == "*")) {
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return $this->sendError("missing");
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}
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} else if ($method != "PUT") {
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if (!$dbName || !isset($db_obj->$dbName)) {
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return $this->sendError("no_db_file");
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}
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} else {
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$db_obj->$dbName = null;
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}
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//execute
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switch ($method) {
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case "GET":
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if ($docId == "*") {
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$res_arr = [];
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foreach ($db_obj->$dbName as $key => $value) $res_arr[] = $key;
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$this->url_obj->send_json($res_arr);
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return true;
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}
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$obj->_id = $docId;
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$obj->_rev = 0;
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$this->url_obj->send_json($obj);
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return true;
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case "PUT":
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if ($db_obj->$dbName == null) {
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if ($docId == null) {
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$db_obj->$dbName = (object) [];
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$this->setFile($db_obj);
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return $this->sendData();
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} else {
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return $this->sendError("no_db_file");
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}
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}
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$db_obj->$dbName->$docId ??= (object) [];
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if ($jsonBody == null) return $this->sendError("missing_body");
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unset($jsonBody->_id);
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unset($jsonBody->_rev);
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$db_obj->$dbName->$docId = $jsonBody;
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$this->setFile($db_obj);
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return $this->sendData((object) [
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"id" => $docId,
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"rev" => 0
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]);
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case "DELETE":
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unset($db_obj->$dbName->$docId);
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$this->setFile($db_obj);
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return $this->sendData((object) [ "id" => $docId ]);
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default:
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return $this->sendError("method_not_allowed");
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}
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}
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}
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@@ -0,0 +1,30 @@
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<?php
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function isFileExtImage(string $fileExt) :bool {
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switch ($fileExt) {
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case 'png':
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case 'jpg':
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case 'jpeg':
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case 'ico':
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case 'gif':
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return true;
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default:
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return false;
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}
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}
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function res_mixed(bool $success, mixed $data = null, string $except = null) :object {
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return $success ? res_ok($data): res_err($data ?? $except);
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}
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function res_ok(mixed $data = null) :object {
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return (object) [
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"type" => "success",
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"data" => $data
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];
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}
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function res_err(string|null $message = null) :object {
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return (object) [
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"type" => "error",
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"message" => $message
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];
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}
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@@ -0,0 +1,167 @@
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<?php
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require_once 'features.php';
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///A collection of given paths
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class TurtlePathInfo {
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public string $content;
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}
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///Parse url and execute it
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class TurtleURLObject {
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public static function create_from_server(bool $lowerCase = true, bool $alternativeURL = true) :TurtleURLObject {
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$urlParts = explode('?', trim($_SERVER['REQUEST_URI'], '/'));
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$urlMark = _parseUrlMark($urlParts);
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$request = str_replace("..", ".", $urlParts[0]);
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if ($lowerCase) $request = strtolower($request);
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if ($alternativeURL) $request = str_replace("-", "/", $request);
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$res = new TurtleURLObject($request, $urlMark);
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$res->method = $_SERVER['REQUEST_METHOD'];
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$res->method_type = explode(',', $_SERVER['HTTP_ACCEPT'] ?? '');
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return $res;
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}
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public string $url;
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public object $args;
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public function __construct(string $url, object $args) {
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$this->url = $url;
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$this->args = $args;
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}
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public string $method;
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public array $method_type;
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public function get_body_text() :string {
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$bodyContent = file_get_contents("php://input");
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return $bodyContent;
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}
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public function get_body_json() :mixed {
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return json_decode($this->get_body_text());
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}
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public function get_html_file(string $file_path): string {
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if (!file_exists($file_path)) {
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return "Not found!";
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} else {
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return file_get_contents($file_path);
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}
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}
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public function send_text(string $text) :void {
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header('Content-Type: text/plain');
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echo $text;
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}
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public function send_json(mixed $data) :void {
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header('Content-Type: application/json');
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echo json_encode($data);
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}
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public function send_image(string $path) :void {
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$fileExt = pathinfo($path, PATHINFO_EXTENSION);
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if ($fileExt === "ico") {
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header("Cache-Control: no-cache, must-revalidate, max-age=0");
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header("Content-Type: image/x-icon");
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} else {
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header("Content-Type: image/$fileExt");
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}
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readfile($path);
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}
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public function send_custom_file(string $path) :bool {
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$fileExt = pathinfo($path, PATHINFO_EXTENSION);
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if (isFileExtImage($fileExt)) {
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$this->send_image($path);
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} else if ($fileExt == "json") {
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$content = file_get_contents($path);
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if ($content == false) return false;
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header('Content-Type: application/json');
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echo $content;
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} else if ($fileExt == "txt") {
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$content = file_get_contents($path);
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if ($content == false) return false;
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$this->send_text($content);
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} else if ($fileExt == "js") {
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header('Content-Type: text/javascript; charset=utf-8');
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echo file_get_contents($path);
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return true;
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} else if ($fileExt == "css") {
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header("Content-Type: text/css");
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echo file_get_contents($path);
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} else if ($fileExt == "html") {
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echo $this->get_html_file($path);
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} else {
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return false;
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}
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return true;
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}
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public function send_download_file(string $path) :bool {
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if (!file_exists($path)) return false;
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header('Content-Description: File Transfer');
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header('Content-Type: application/octet-stream');
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header('Content-Disposition: attachment; filename="'.basename($path).'"');
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header('Expires: 0');
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header('Cache-Control: must-revalidate');
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header('Pragma: public');
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header('Content-Length: ' . filesize($path));
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readfile($path);
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return true;
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}
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public function is_image_request() :bool {
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foreach ($this->method_type as $type) {
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if (!str_starts_with($type, "image/")) return false;
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}
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return true;
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}
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public function handle_request(TurtlePathInfo $path_info): void {
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$referer = $_SERVER['HTTP_REFERER'] ?? '';
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$filePath = $path_info->content . $this->url;
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if (strlen($this->url) == 0) {
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$filePath = "{$path_info->content}START.html";
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}
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//-------------Image-Pages-------------------//
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else if (
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!empty($referer) && $this->is_image_request()
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) {
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if (file_exists($filePath)) {
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$this->send_image($filePath);
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return;
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} else {
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$filePath = NULL;
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}
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}
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//-------------HTML-Pages-------------------//
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if ($filePath === NULL || !file_exists($filePath)) {
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$filePath = "{$path_info->content}NOT-FOUND.html";
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http_response_code(404);
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}
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$this->send_custom_file($filePath);
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}
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}
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function _parseUrlMark($urlParts) :object {
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$res = (object) [];
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if (count($urlParts) == 1) return $res;
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foreach (explode('&', $urlParts[1]) as $part) {
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$arr = explode('=', $part, 2);
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$cnt = count($arr);
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switch ($cnt) {
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case 1:
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$res->{$arr[0]} = 1;
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break;
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case 2:
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$res->{$arr[0]} = $arr[1];
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break;
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}
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}
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return $res;
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}
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