完善了agent

agent/tools/web/http_get.js

@@ -0,0 +1,62 @@
+import { tool } from 'langchain';
+import * as z from 'zod';
+
+export const httpGetTool = tool(
+  async ({ url, headers = {}, timeout = 30000 }) => {
+    try {
+      new URL(url);
+    } catch (e) {
+      return JSON.stringify({ success: false, error: `Invalid URL: ${url}` });
+    }
+
+    try {
+      const controller = new AbortController();
+      const timeoutId = setTimeout(() => controller.abort(), timeout);
+
+      const response = await fetch(url, {
+        method: 'GET',
+        headers: {
+          'User-Agent': 'XAgent-Bot/1.0',
+          ...headers
+        },
+        signal: controller.signal
+      });
+
+      clearTimeout(timeoutId);
+
+      const contentType = response.headers.get('content-type') || '';
+      let body;
+
+      if (contentType.includes('application/json')) {
+        body = await response.json();
+      } else if (contentType.includes('text/') || contentType.includes('application/javascript')) {
+        body = await response.text();
+      } else {
+        const buffer = await response.arrayBuffer();
+        body = Buffer.from(buffer).toString('base64');
+      }
+
+      return JSON.stringify({
+        success: true,
+        status: response.status,
+        statusText: response.statusText,
+        headers: Object.fromEntries(response.headers.entries()),
+        body
+      });
+    } catch (error) {
+      if (error.name === 'AbortError') {
+        return JSON.stringify({ success: false, error: `Request timed out after ${timeout}ms` });
+      }
+      return JSON.stringify({ success: false, error: error.message });
+    }
+  },
+  {
+    name: 'http_get',
+    description: 'Send HTTP GET request and return response content. Supports custom headers and timeout settings.',
+    schema: z.object({
+      url: z.string().describe('Request URL'),
+      headers: z.record(z.string(), z.string()).optional().describe('Request headers'),
+      timeout: z.number().optional().describe('Timeout in milliseconds, default 30000')
+    })
+  }
+);