Added option to download items by music

README.md

@@ -9,6 +9,7 @@ A simple tiktok video downloader written in go
 Download the executable from `https://github.com/pikami/tiktok-dl/releases`\
 You can download all videos from user by running `./tiktok-dl [Options] TIKTOK_USERNAME`\
 You can download single video by running `./tiktok-dl [Options] VIDEO_URL`\
+You can download all videos by music by running `./tiktok-dl [Options] MUSIC_URL`\
 You can download items listed in a text file by running `./tiktok-dl [OPTIONS] -batch-file path/to/items.txt`
 
 ## Build instructions

client/getMusicUploads.go

@@ -0,0 +1,58 @@
+package client
+
+import (
+	"context"
+	"github.com/chromedp/chromedp"
+	"io/ioutil"
+	"log"
+	"os"
+	"time"
+
+	models "../models"
+	utils "../utils"
+)
+
+// GetMusicUploads - Get all uploads by given music
+func GetMusicUploads(url string) []models.Upload {
+	dir, err := ioutil.TempDir("", "chromedp-example")
+	if err != nil {
+		panic(err)
+	}
+	defer os.RemoveAll(dir)
+
+	opts := append(chromedp.DefaultExecAllocatorOptions[:],
+		chromedp.DisableGPU,
+		chromedp.UserDataDir(dir),
+		chromedp.Flag("headless", !models.Config.Debug),
+	)
+
+	allocCtx, cancel := chromedp.NewExecAllocator(context.Background(), opts...)
+	defer cancel()
+
+	ctx, cancel := chromedp.NewContext(
+		allocCtx,
+		chromedp.WithLogf(log.Printf),
+	)
+	defer cancel()
+
+	ctx, cancel = context.WithTimeout(ctx, 1500*time.Second)
+	defer cancel()
+
+	var jsOutput string
+	err = chromedp.Run(ctx,
+		// Navigate to user's page
+		chromedp.Navigate(url),
+		// Execute url grabber script
+		chromedp.EvaluateAsDevTools(utils.ReadFileAsString("scraper.js"), &jsOutput),
+		chromedp.EvaluateAsDevTools("bootstrapIteratingVideos()", &jsOutput),
+		// Wait until custom js finishes
+		chromedp.WaitVisible(`video_urls`),
+		// Grab url links from our element
+		chromedp.InnerHTML(`video_urls`, &jsOutput),
+	)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return models.ParseUploads(jsOutput)
+}

main.go

@@ -16,17 +16,5 @@ func main() {
 		return
 	}
 
-	// Single video
-	if workflows.CanUseDownloadSingleVideo(url) {
-		workflows.DownloadSingleVideo(url)
-		return
-	}
-
-	// Tiktok user
-	if workflows.CanUseDownloadUser(url) {
-		workflows.DownloadUser(models.GetUsername())
-		return
-	}
-
-	panic("Could not recognise URL format")
+	workflows.StartWorkflowByParameter(url)
 }

models/upload.go

@@ -12,6 +12,7 @@ type Upload struct {
 	URL       string `json:"url"`
 	ShareLink string `json:"shareLink"`
 	Caption   string `json:"caption"`
+	Uploader  string `json:"uploader"`
 	Sound     Sound  `json:"sound"`
 }
 

models/upload_test.go

@@ -9,7 +9,7 @@ import (
 
 func TestParseUploads(t *testing.T) {
 	tu := testUtil.TestUtil{T: t}
-	jsonStr := "[{\"url\":\"some_url\",\"shareLink\":\"some_share_link\",\"caption\":\"some_caption\",\"sound\":{\"title\":\"some_title\",\"link\":\"some_link\"}}]"
+	jsonStr := "[{\"url\":\"some_url\",\"shareLink\":\"some_share_link\",\"caption\":\"some_caption\", \"uploader\": \"some.uploader\",\"sound\":{\"title\":\"some_title\",\"link\":\"some_link\"}}]"
 	actual := ParseUploads(jsonStr)
 
 	tu.AssertInt(len(actual), 1, "Array len")
@@ -17,6 +17,7 @@ func TestParseUploads(t *testing.T) {
 	tu.AssertString(actual[0].URL, "some_url", "URL")
 	tu.AssertString(actual[0].Caption, "some_caption", "Caption")
 	tu.AssertString(actual[0].ShareLink, "some_share_link", "ShareLink")
+	tu.AssertString(actual[0].Uploader, "some.uploader", "Uploader")
 
 	tu.AssertString(actual[0].Sound.Link, "some_link", "Sound.Link")
 	tu.AssertString(actual[0].Sound.Title, "some_title", "Sound.Title")

scraper.js

@@ -7,10 +7,12 @@ optStrings = {
         modalShareInput: '.copy-link-container > input',
         modalCaption: 'div.video-card-big > div.content-container > div.video-meta-info > h1',
         modalSoundLink: 'div.content-container > div.video-meta-info > h2.music-info > a',
+        modalUploader: '.user-username',
         videoPlayer: 'div.video-card-container > div > div > video',
         videoShareInput: 'div.content-container.border > div.copy-link-container > input',
         videoCaption: 'div.content-container.border > div.video-meta-info > h1',
         videoSoundLink: 'div.content-container.border > div.video-meta-info > h2.music-info > a',
+        videoUploader: '.user-username',
     },
     classes: {
         feedVideoItem: 'video-feed-item-wrapper',
@@ -56,6 +58,7 @@ getCurrentModalVideo = function() {
     var shareLink = document.querySelector(optStrings.selectors.modalShareInput).value;
     var caption = document.querySelector(optStrings.selectors.modalCaption).textContent;
     var soundLink = document.querySelector(optStrings.selectors.modalSoundLink);
+    var uploader = document.querySelector(optStrings.selectors.modalUploader).textContent;
     var soundHref = soundLink.getAttribute("href");
     var soundText = soundLink.text;
 
@@ -63,6 +66,7 @@ getCurrentModalVideo = function() {
         url: vidUrl,
         shareLink: shareLink,
         caption: caption,
+        uploader: uploader,
         sound: {
             title: soundText,
             link: soundHref,
@@ -76,6 +80,7 @@ getCurrentVideo = function() {
     var shareLink = document.querySelector(optStrings.selectors.videoShareInput).value;
     var caption = document.querySelector(optStrings.selectors.videoCaption).textContent;
     var soundLink = document.querySelector(optStrings.selectors.videoSoundLink);
+    var uploader = document.querySelector(optStrings.selectors.videoUploader).textContent;
     var soundHref = soundLink.getAttribute("href");
     var soundText = soundLink.text;
 
@@ -83,6 +88,7 @@ getCurrentVideo = function() {
         url: vidUrl,
         shareLink: shareLink,
         caption: caption,
+        uploader: uploader,
         sound: {
             title: soundText,
             link: soundHref,

workflows/downloadBatchFile.go

@@ -1,7 +1,6 @@
 package workflows
 
 import (
-	models "../models"
 	utils "../utils"
 	"fmt"
 )
@@ -25,17 +24,5 @@ func downloadItem(batchItem string) {
 		return
 	}
 
-	// Single video
-	if CanUseDownloadSingleVideo(batchItem) {
-		DownloadSingleVideo(batchItem)
-		return
-	}
-
-	// Tiktok user
-	if CanUseDownloadUser(batchItem) {
-		DownloadUser(models.GetUsernameFromString(batchItem))
-		return
-	}
-
-	panic(fmt.Sprintf("Could not recognise URL format of string %s", batchItem))
+	StartWorkflowByParameter(batchItem)
 }

workflows/downloadMusic.go

@@ -0,0 +1,28 @@
+package workflows
+
+import (
+	client "../client"
+	models "../models"
+	utils "../utils"
+	"fmt"
+	"regexp"
+)
+
+// CanUseDownloadMusic - Check's if DownloadMusic can be used for parameter
+func CanUseDownloadMusic(url string) bool {
+	match, _ := regexp.MatchString(".com\\/music\\/.+", url)
+	return match
+}
+
+// DownloadMusic - Download all videos by given music
+func DownloadMusic(url string) {
+	uploads := client.GetMusicUploads(url)
+
+	for _, upload := range uploads {
+		username := models.GetUsernameFromString(upload.Uploader)
+		downloadDir := fmt.Sprintf("%s/%s", models.Config.OutputPath, username)
+
+		utils.InitOutputDirectory(downloadDir)
+		downloadVideo(upload, downloadDir)
+	}
+}

workflows/startWorkflowByParameter.go

@@ -0,0 +1,30 @@
+package workflows
+
+import (
+	models "../models"
+	"fmt"
+)
+
+// StartWorkflowByParameter - Start needed workflow by given parameter
+func StartWorkflowByParameter(url string) {
+
+	// Music
+	if CanUseDownloadMusic(url) {
+		DownloadMusic(url)
+		return
+	}
+
+	// Single video
+	if CanUseDownloadSingleVideo(url) {
+		DownloadSingleVideo(url)
+		return
+	}
+
+	// Tiktok user
+	if CanUseDownloadUser(url) {
+		DownloadUser(models.GetUsername())
+		return
+	}
+
+	panic(fmt.Sprintf("Could not recognise URL format of string %s", url))
+}