Run Experiment Support

experiments/index.php

@@ -0,0 +1,198 @@
+<?php
+session_start();
+
+// ==================== 配置区域 ====================
+define('EXPERIMENTS_DIR', __DIR__ . '/experiments/');
+define('MODEL_LIFETIME', 60);
+define('NETLOGO_BASE', 'https://netlogoweb.org');
+// =================================================
+
+// 主处理逻辑
+$modelId = $_GET['id'] ?? '';
+$action = $_GET['action'] ?? '';
+
+if ($action === 'model') {
+    handleModelFile();
+    exit();
+}
+
+// 如果没有模型ID，直接结束
+if (empty($modelId)) {
+    echo '请在URL中添加参数 id=模型ID';
+    exit();
+}
+
+// 处理模型并跳转
+handleModelRedirect($modelId);
+exit();
+
+// ==================== 核心功能函数 ====================
+
+/**
+ * 处理模型并跳转到NetLogo Web
+ */
+function handleModelRedirect($contentId) {
+    // 获取并保存模型
+    $modelInfo = fetchAndSaveModel($contentId);
+
+    if (!$modelInfo || !$modelInfo['success']) {
+        echo '模型获取失败';
+        exit();
+    }
+
+    // 获取模型URL
+    $modelUrl = getModelUrl($modelInfo['filename']);
+
+    // 直接跳转到NetLogo Web的model.html页面
+    $redirectUrl = 'model.html?url=' . $modelUrl;
+    header('Location: ' . $redirectUrl);
+    exit();
+}
+
+/**
+ * 获取并保存模型
+ */
+function fetchAndSaveModel($contentId) {
+    $result = getSav($contentId, $_SESSION['token'] ?? '', $_SESSION['authCode'] ?? '');
+
+    if (isset($result['error']) || $result['http_status'] !== 200) {
+        return ['success' => false];
+    }
+
+    // 提取模型内容
+    if (!isset($result['Data']['ModelCode']) || !$result['Data']['ModelCode']) {
+        return ['success' => false];
+    }
+
+    // 保存文件
+    $filename = $contentId . '.nlogo';
+    $filepath = EXPERIMENTS_DIR . $filename;
+
+    if (file_put_contents($filepath, $result['Data']['ModelCode']) !== false) {
+        return [
+            'success' => true,
+            'filename' => $filename,
+        ];
+    }
+
+    return ['success' => false];
+}
+
+/**
+ * 处理模型文件请求
+ */
+function handleModelFile() {
+    $filename = $_GET['file'] ?? '';
+
+    if (!$filename) {
+        echo '缺少文件参数';
+        exit();
+    }
+
+    // 安全过滤文件名
+    $filename = basename($filename);
+    $filepath = EXPERIMENTS_DIR . $filename;
+
+    if (!file_exists($filepath)) {
+        echo '模型文件不存在';
+        exit();
+    }
+
+    header('Content-Type: text/plain');
+    header('Content-Disposition: inline');
+    header('Cache-Control: no-cache, must-revalidate');
+    header('Access-Control-Allow-Origin: *');
+    readfile($filepath);
+    exit();
+}
+
+/**
+ * 获取模型URL
+ */
+function getModelUrl($filename) {
+    $protocol = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http';
+    $host = $_SERVER['HTTP_HOST'] ?? 'tuweb.page.gd';
+    $path = dirname($_SERVER['PHP_SELF'] ?? '/experiments');
+
+    if (substr($path, -1) !== '/') {
+        $path .= '/';
+    }
+
+    return $protocol . '://' . $host . $path . 'experiments/' . urlencode($filename);
+}
+
+/**
+ * 清理过期文件
+ */
+function cleanupExpiredFiles() {
+    if (!is_dir(EXPERIMENTS_DIR)) return;
+
+    $files = scandir(EXPERIMENTS_DIR);
+    $now = time();
+
+    foreach ($files as $file) {
+        if ($file == '.' || $file == '..') continue;
+
+        $filePath = EXPERIMENTS_DIR . $file;
+
+        if (file_exists($filePath) && is_file($filePath)) {
+            $fileTime = filemtime($filePath);
+
+            if (($now - $fileTime) > MODEL_LIFETIME && strpos($file,'.nlogo') !== false) {
+                @unlink($filePath);
+            }
+        }
+    }
+}
+
+/**
+ * 获取模型数据
+ */
+function getSav($contentId, $token, $authCode) {
+    $baseUrl = 'http://nlm-api-cn.turtlesim.com/';
+    $url = $baseUrl . 'Contents/GetWorkspace';
+
+    $requestData = ['ContentID' => $contentId];
+
+    $headers = [
+        "Content-Type: application/json",
+        "Accept: application/json",
+        "x-API-Token: " . $token,
+        "x-API-AuthCode: " . $authCode,
+    ];
+
+    $ch = curl_init($url);
+    curl_setopt_array($ch, [
+        CURLOPT_RETURNTRANSFER => true,
+        CURLOPT_HEADER => true,
+        CURLOPT_POST => true,
+        CURLOPT_HTTPHEADER => $headers,
+        CURLOPT_POSTFIELDS => json_encode($requestData),
+        CURLOPT_FOLLOWLOCATION => true,
+        CURLOPT_TIMEOUT => 5,
+        CURLOPT_SSL_VERIFYPEER => true,
+    ]);
+
+    $response = curl_exec($ch);
+
+    if ($response === false) {
+        return ['error' => 'CURL Error'];
+    }
+
+    $statusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+    $headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
+    $body = substr($response, $headerSize);
+
+    curl_close($ch);
+
+    $responseData = json_decode($body, true);
+
+    if (json_last_error() !== JSON_ERROR_NONE) {
+        return ['error' => 'JSON Parse Error'];
+    }
+
+    $responseData['http_status'] = $statusCode;
+
+    return $responseData;
+}
+?>