go-bot/workers/httpcat.go

package workers

import (
	"compress/gzip"
	"fmt"
	"go-bot/config"
	"io"
	"slices"
	"time"

	"github.com/PuerkitoBio/goquery"
	"github.com/andybalholm/brotli"

	"github.com/imroc/req/v3"
)

func init() {
	plugins := config.GetConfig()["PLUGINS"].([]interface{})
	if slices.Contains(plugins, "httpcat") {
		RegisterWorkerFactory("httpcat", func(parms []string, uid, gid, role, mid, rawMsg string) Worker {
			return &HttpCat{
				StdAns: NewStdAns(parms, uid, gid, role, mid, rawMsg),
			}
		})
	}
}

type HttpCat struct {
	*StdAns
}

func (a *HttpCat) GetMsg() string {
	if len(a.Parms) < 2 {
		return "您可以使用 !httpcat 状态码 进行查找，状态码支持100-599"
	}
	baseUrl := "https://http.cat/"
	picUrl := baseUrl + "images/" + a.Parms[1] + ".jpg"
	// 使用 req 发起 HEAD 请求检查资源是否存在
	client := req.C().SetTimeout(5 * time.Second)
	resp, err := client.R().Head(picUrl)
	if err != nil {
		return "请求错误: " + err.Error()
	}

	// 判断资源是否存在
	if resp.StatusCode != 200 {
		return fmt.Sprintf("资源不存在，状态码: %d", resp.StatusCode)
	}
	respContent := "[CQ:image,file=" + picUrl + "]"
	docUrl := "https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Status/" + a.Parms[1]
	resp, err = client.R().
		SetHeader("Host", "developer.mozilla.org").
		SetHeader("User-Agent", "Apifox/1.0.0 (https://apifox.com)").
		SetHeader("Accept", "*/*").
		SetHeader("Content-Type", "text/plain").
		Get(docUrl)
	if err != nil {
		return "请求错误: " + err.Error()
	}
	if resp != nil {
		defer resp.Body.Close()
	}
	if resp != nil && resp.StatusCode == 200 {
		// 解压缩响应体
		var reader io.ReadCloser
		switch resp.Header.Get("Content-Encoding") {
		case "br":
			reader = io.NopCloser(brotli.NewReader(resp.Body))
		case "gzip":
			var err error
			reader, err = gzip.NewReader(resp.Body)
			if err != nil {
				fmt.Println("gzip 解压错误:", err)
				return respContent
			}
			defer reader.Close()
		default:
			reader = resp.Body
		}

		// 使用 goquery 解析 HTML
		doc, err := goquery.NewDocumentFromReader(reader)
		if err != nil {
			fmt.Println("HTML 解析错误:", err)
			return respContent
		}

		// 查找 <meta name="description"> 标签并获取 content 属性的值
		description, exists := doc.Find(`meta[name="description"]`).Attr("content")
		if exists {
			// fmt.Println("Meta Description Content:", description)
			respContent += description
		} else {
			fmt.Println("没有找到 meta description 标签")
			// 将解析后的 HTML 保存到文件
			// file, err := os.Create("output.html")
			// if err != nil {
			// 	fmt.Println("文件创建错误:", err)
			// 	return respContent
			// }
			// defer file.Close()

			// // 输出 HTML 内容到文件
			// html, err := doc.Html()
			// if err != nil {
			// 	fmt.Println("获取 HTML 错误:", err)
			// 	return respContent
			// }
			// _, err = file.WriteString(html)
			// if err != nil {
			// 	fmt.Println("写入文件错误:", err)
			// 	return respContent
			// }

			// fmt.Println("HTML 内容已保存到 output.html 文件")
		}
	}

	return respContent

}