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path: root/href.go
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package main

import (
	"net/http"

	"golang.org/x/net/html"
)

func findTitle(n *html.Node) string {
	if n.Type == html.ElementNode && n.Data == "title" {
		if c := n.FirstChild; n != nil {
			return c.Data
		}
	}
	for c := n.FirstChild; c != nil; c = c.NextSibling {
		if s := findTitle(c); s != "" {
			return s
		}
	}
	return ""
}

func FetchTitle(url string) (string, error) {
	resp, err := http.Get(url)
	if err != nil {
		return "", err
	}
	defer resp.Body.Close()

	doc, err := html.Parse(resp.Body)
	if err != nil {
		return "", err
	}

	return findTitle(doc), nil
}