更新了个搜索工具，请在API模式里面填入可以进行网络搜索的模型，该工具会调用模型进行搜索

utils/tools/CustomSearchTool.js

@@ -0,0 +1,100 @@
+import { AbstractTool } from './AbstractTool.js';
+import fetch from 'node-fetch';
+import { Config } from '../config.js';
+
+/**
+ * 自定义搜索工具类
+ * @class CustomSearchTool
+ * @extends {AbstractTool}
+ */
+export class CustomSearchTool extends AbstractTool {
+  // 工具名称
+  name = 'CustomSearchTool';
+
+  // 工具参数
+  parameters = {
+    properties: {
+      query: {
+        type: 'string',
+        description: 'Search keyword or URL',
+      },
+      length: {
+        type: 'integer',
+        description: 'The desired length of the summary in sentences. Defaults to 3.',
+      },
+    },
+    required: ['query'],
+  };
+
+  /**
+   * 工具执行函数
+   * @param {Object} opt - 工具参数
+   * @param {Object} ai - AI对象（未使用）
+   * @returns {Promise<string>} - 搜索结果或摘要
+   */
+  func = async function (opt, ai) {
+    let { query, length = 3 } = opt;
+    if (!query) {
+      return 'The query parameter is required.';
+    }
+
+    try {
+      // 使用OpenAI API进行搜索或摘要
+      const result = await searchOrSummarize(query, length);
+      console.log(`Search or summarization result: ${result}`);
+
+      // 返回搜索结果或摘要给AI
+      return result;
+    } catch (error) {
+      console.error('Search or summarization failed:', error);
+      return `Search or summarization failed, please check the logs. ${error.message}`;
+    }
+  };
+
+  // 工具描述
+  description = 'Use OpenAI API for custom search or summarize URL content, providing comprehensive search results or summaries.';
+}
+
+/**
+ * 使用OpenAI API进行搜索或摘要
+ * @param {string} query - 搜索关键词或URL
+ * @param {number} length - 期望的摘要长度（以句子为单位）
+ * @returns {Promise<string>} - 搜索结果或摘要
+ */
+async function searchOrSummarize(query, length) {
+  const apiKey = Config.apiKey;
+  const apiBaseUrl = Config.openAiBaseUrl;
+  const apiUrl = `${apiBaseUrl}/chat/completions`; // 将/chat/completions连接到基本URL
+  const model = Config.model;
+
+  // 判断是URL还是关键词
+  const isUrl = /^(https?:\/\/)/i.test(query);
+
+  const response = await fetch(apiUrl, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      'Authorization': `Bearer ${apiKey}`,
+    },
+    body: JSON.stringify({
+      model: model,
+      messages: [
+        {
+          role: 'system',
+          content: `You are a search and summarization assistant. ${isUrl ? `Please summarize the content of the following URL in English, with a length of ${length} sentences.` : `Please use English to search based on the following keywords and return a summary of ${length} sentences.`}`,
+        },
+        {
+          role: 'user',
+          content: `${isUrl ? `Summarize this article: ${query}` : `Search: ${query}`}`, // 根据是URL还是关键词发送不同的内容
+        },
+      ],
+      max_tokens: 1000 * length,
+    }),
+  });
+
+  const data = await response.json();
+  if (data.error) {
+    throw new Error(`OpenAI API Error: ${data.error.message}`);
+  }
+  return data.choices[0].message.content;
+}