rss-tools @ 65589dece188d9ac7262e1b2dab64bf5f4109c4b

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         }

      
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         const (

      
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        -	defaultScraperUserAgent = "rss-tools/1.0" // todo: i wanna be a chrome

      
        
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        +	defaultScraperUserAgent = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36"

      
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         	defaultScraperAccept    = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"

      
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         )

      
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        63
         

      

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         import (

      
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         	"context"

      
        
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        +	"encoding/json"

      
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         	"fmt"

      
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         	"io"

      
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         	"net/http"

      
        
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        +	"net/url"

      
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         	"strings"

      
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        11
         

      
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         	"github.com/PuerkitoBio/goquery"

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         		title = metaPageTitle(doc)

      
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         	}

      
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         	if !isMeaningfulPageTitle(title) {

      
        
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        +		if videoID, _, ok := youtubeCanonicalLink(rawURL); ok {

      
        
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        +			ytTitle, ytErr := fetchYouTubeVideoTitle(ctx, get, videoID)

      
        
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        +			if ytErr == nil {

      
        
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        +				return ytTitle, nil

      
        
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        +			}

      
        
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        +		}

      
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         		return "", fmt.Errorf("page title is empty")

      
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         	}

      
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         	return title, nil

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         		}

      
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         	}

      
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         	return ""

      
        
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        +}

      
        
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        +

      
        
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        +type youtubeOEmbedResponse struct {

      
        
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        +	Title string `json:"title"`

      
        
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        +}

      
        
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        +

      
        
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        +func fetchYouTubeVideoTitle(ctx context.Context, get func(context.Context, string) (*http.Response, error), videoID string) (string, error) {

      
        
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        +	u := url.URL{

      
        
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        +		Scheme: "https",

      
        
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        +		Host:   "www.youtube.com",

      
        
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        +		Path:   "/oembed",

      
        
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        +	}

      
        
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        +	q := u.Query()

      
        
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        +	q.Set("url", "https://www.youtube.com/watch?v="+videoID)

      
        
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        +	q.Set("format", "json")

      
        
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        +	u.RawQuery = q.Encode()

      
        
        95
        +

      
        
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        +	resp, err := get(ctx, u.String())

      
        
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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()

      
        
        101
        +

      
        
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        +	if resp.StatusCode != http.StatusOK {

      
        
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        +		return "", fmt.Errorf("oEmbed request failed with status %d", resp.StatusCode)

      
        
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        +	}

      
        
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        +

      
        
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        +	var oembed youtubeOEmbedResponse

      
        
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        +	if err := json.NewDecoder(resp.Body).Decode(&oembed); err != nil {

      
        
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        +		return "", err

      
        
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        +	}

      
        
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        +

      
        
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        +	title := normalizePageTitle(oembed.Title)

      
        
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        +	if !isMeaningfulPageTitle(title) {

      
        
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        +		return "", fmt.Errorf("oEmbed returned empty title")

      
        
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        +	}

      
        
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        +

      
        
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        +	return title, nil

      
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         }

      
        72
        118
         

      
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         func normalizePageTitle(raw string) string {

      

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         		t.Fatalf("expected an error for placeholder title")

      
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         	}

      
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         }

      
        
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        +

      
        
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        +func TestFetchPageTitleFallsBackToYouTubeOEmbed(t *testing.T) {

      
        
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        +	calls := 0

      
        
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        +	title, err := fetchPageTitle(context.Background(), func(_ context.Context, url string) (*http.Response, error) {

      
        
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        +		calls++

      
        
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        +		if strings.Contains(url, "oembed") {

      
        
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        +			return &http.Response{

      
        
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        +				StatusCode: http.StatusOK,

      
        
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        +				Header: http.Header{

      
        
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        +					"Content-Type": []string{"application/json; charset=utf-8"},

      
        
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        +				},

      
        
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        +				Body: io.NopCloser(strings.NewReader(`{"title":"Rick Astley - Never Gonna Give You Up"}`)),

      
        
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        +			}, nil

      
        
        134
        +		}

      
        
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        +		return &http.Response{

      
        
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        +			StatusCode: http.StatusOK,

      
        
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        +			Header: http.Header{

      
        
        138
        +				"Content-Type": []string{"text/html; charset=utf-8"},

      
        
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        +			},

      
        
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        +			Body: io.NopCloser(strings.NewReader(`<html><head><title> - YouTube </title></head></html>`)),

      
        
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        +		}, nil

      
        
        142
        +	}, "https://www.youtube.com/watch?v=dQw4w9WgXcQ")

      
        
        143
        +	if err != nil {

      
        
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        +		t.Fatalf("unexpected error: %v", err)

      
        
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        +	}

      
        
        146
        +	is.Equal(t, "Rick Astley - Never Gonna Give You Up", title)

      
        
        147
        +	is.Equal(t, 2, calls)

      
        
        148
        +}