!-
(url string)
| 65 | //!- |
| 66 | |
| 67 | func title(url string) error { |
| 68 | resp, err := http.Get(url) |
| 69 | if err != nil { |
| 70 | return err |
| 71 | } |
| 72 | |
| 73 | // Check Content-Type is HTML (e.g., "text/html; charset=utf-8"). |
| 74 | ct := resp.Header.Get("Content-Type") |
| 75 | if ct != "text/html" && !strings.HasPrefix(ct, "text/html;") { |
| 76 | resp.Body.Close() |
| 77 | return fmt.Errorf("%s has type %s, not text/html", url, ct) |
| 78 | } |
| 79 | |
| 80 | doc, err := html.Parse(resp.Body) |
| 81 | resp.Body.Close() |
| 82 | if err != nil { |
| 83 | return fmt.Errorf("parsing %s as HTML: %v", url, err) |
| 84 | } |
| 85 | title, err := soleTitle(doc) |
| 86 | if err != nil { |
| 87 | return err |
| 88 | } |
| 89 | fmt.Println(title) |
| 90 | return nil |
| 91 | } |
| 92 | |
| 93 | func main() { |
| 94 | for _, arg := range os.Args[1:] { |