41 lines
628 B
Go
41 lines
628 B
Go
package main
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import (
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"golang.org/x/net/html"
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"net/http"
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)
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func htmlTitleRecurse(h *html.Node) string {
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if h == nil || h.FirstChild == nil {
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return ""
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}
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if h.Type == html.ElementNode && h.Data == "title" {
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return h.FirstChild.Data
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}
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for c := h.FirstChild; c != nil; c = c.NextSibling {
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res := htmlTitleRecurse(c)
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if res != "" {
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return res
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}
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}
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return ""
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}
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func htmlTitleGet(url string) (string, error) {
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resp, err := http.Get(url)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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h, err := html.Parse(resp.Body)
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if err != nil {
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return "", err
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}
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return htmlTitleRecurse(h), nil
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}
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