Add ChannelHandle to Video struct (#299)

* Add channel handle to video info
* Add test for data present in web client

client_test.go

@@ -11,6 +11,7 @@ import (
 )
 
 var testClient = Client{Debug: true}
+var testWebClient = Client{Debug: true, client: &WebClient}
 
 const (
 	dwlURL    string = "https://www.youtube.com/watch?v=rFejpH_tAHM"
@@ -106,6 +107,34 @@ func TestGetVideoWithoutManifestURL(t *testing.T) {
 	// assert.Equal("2015-12-02 00:00:00 +0000 UTC", video.PublishDate.String())
 }
 
+func TestWebClientGetVideoWithoutManifestURL(t *testing.T) {
+	assert, require := assert.New(t), require.New(t)
+
+	video, err := testWebClient.GetVideo(dwlURL)
+	require.NoError(err, "get video")
+	require.NotNil(video)
+
+	assert.NotEmpty(video.Thumbnails)
+	assert.Greater(len(video.Thumbnails), 0)
+	assert.NotEmpty(video.Thumbnails[0].URL)
+	assert.Empty(video.HLSManifestURL)
+	assert.Empty(video.DASHManifestURL)
+
+	assert.NotEmpty(video.CaptionTracks)
+	assert.Greater(len(video.CaptionTracks), 0)
+	assert.NotEmpty(video.CaptionTracks[0].BaseURL)
+
+	assert.Equal("rFejpH_tAHM", video.ID)
+	assert.Equal("dotGo 2015 - Rob Pike - Simplicity is Complicated", video.Title)
+	assert.Equal("dotconferences", video.Author)
+	assert.GreaterOrEqual(video.Duration, 1390*time.Second)
+	assert.Contains(video.Description, "Go is often described as a simple language.")
+
+	// Publishing date and channel handle are present in web client
+	assert.Equal("2015-12-02 00:00:00 +0000 UTC", video.PublishDate.String())
+	assert.Equal("@dotconferences", video.ChannelHandle)
+}
+
 func TestGetVideoWithManifestURL(t *testing.T) {
 	assert, require := assert.New(t), require.New(t)
 

video.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"net/url"
 	"regexp"
 	"sort"
 	"strconv"
@@ -17,6 +18,7 @@ type Video struct {
 	Description     string
 	Author          string
 	ChannelID       string
+	ChannelHandle   string
 	Views           int
 	Duration        time.Duration
 	PublishDate     time.Time
@@ -117,6 +119,10 @@ func (v *Video) extractDataFromPlayerResponse(prData playerResponseData) error {
 		v.PublishDate, _ = time.Parse(dateFormat, str)
 	}
 
+	if profileURL, err := url.Parse(prData.Microformat.PlayerMicroformatRenderer.OwnerProfileURL); err == nil && len(profileURL.Path) > 1 {
+		v.ChannelHandle = profileURL.Path[1:]
+	}
+
 	// Assign Streams
 	v.Formats = append(prData.StreamingData.Formats, prData.StreamingData.AdaptiveFormats...)
 	if len(v.Formats) == 0 {