Download videos by hashtag; get json data without video downloading; limit option

README.md

@@ -22,6 +22,8 @@ Clone this repository and run `go build` to build the executable.
 * `-batch-file` - File containing URLs/Usernames to download, one value per line. Lines starting with '#', are considered as comments and ignored.
 * `-deadline` - Sets the timout for scraper logic in seconds (used as a workaround for context deadline exceeded error) (default 1500)
 * `-quiet` - Supress output
+* `-json` - Returns whole data, that was scraped from TikTok, in json
+* `-limit` - Sets the max count of video that will be downloaded (default infinity)
 
 ## Acknowledgments
 This software uses the **chromedp** for web scraping, it can be found here: https://github.com/chromedp/chromedp \

client/executeClientAction.go

@@ -65,6 +65,7 @@ func runScrapeWithInfo(ctx context.Context, jsAction string, url string) string
         // Navigate to user's page
         chromedp.Navigate(url),
         // Execute url grabber script
+        chromedp.WaitReady("video"),
         chromedp.EvaluateAsDevTools(utils.ReadFileAsString("scraper.js"), &jsOutput),
         chromedp.EvaluateAsDevTools(jsAction, &jsOutput),
     )
@@ -74,7 +75,7 @@ func runScrapeWithInfo(ctx context.Context, jsAction string, url string) string
         err = chromedp.Run(ctx, chromedp.EvaluateAsDevTools("currentState.preloadCount.toString()", &jsOutput))
         utils.CheckErr(err)
         if jsOutput != "0" {
-			utils.Logf("\rPreloading... Currently loaded %s items.", jsOutput)
+            utils.Logf("\rPreloading... %s items have been founded.", jsOutput)
         } else {
             utils.Logf("\rPreloading...")
         }

client/getHashtagUploads.go

@@ -0,0 +1,19 @@
+package client
+
+import (
+    models "../models"
+    config "../models/config"
+    "fmt"
+)
+
+// GetUserUploads - Get all uploads marked with given hashtag
+func GetHashtagUploads(hashtagURL string) []models.Upload {
+    jsMethod := fmt.Sprintf("bootstrapIteratingVideos(%d)", config.Config.Limit)
+    actionOutput := executeClientAction(hashtagURL, jsMethod)
+    return models.ParseUploads(actionOutput)
+}
+
+func GetHashtagUploadsJson(hashtagURL string) string {
+    jsMethod := fmt.Sprintf("bootstrapIteratingVideos(%d)", config.Config.Limit)
+    return executeClientAction(hashtagURL, jsMethod)
+}

client/getMusicUploads.go

@@ -2,10 +2,18 @@ package client
 
 import (
     models "../models"
+    config "../models/config"
+    "fmt"
 )
 
 // GetMusicUploads - Get all uploads by given music
 func GetMusicUploads(url string) []models.Upload {
-	actionOutput := executeClientAction(url, "bootstrapIteratingVideos()")
+    jsMethod := fmt.Sprintf("bootstrapIteratingVideos(%d)", config.Config.Limit)
+    actionOutput := executeClientAction(url, jsMethod)
     return models.ParseUploads(actionOutput)
 }
+
+func GetMusicUploadsJson(url string) string {
+    jsMethod := fmt.Sprintf("bootstrapIteratingVideos(%d)", config.Config.Limit)
+    return executeClientAction(url, jsMethod)
+}

client/getUserUploads.go

@@ -2,10 +2,18 @@ package client
 
 import (
 	models "../models"
+	config "../models/config"
+    "fmt"
 )
 
 // GetUserUploads - Get all uploads by user
 func GetUserUploads(username string) []models.Upload {
-	actionOutput := executeClientAction(`https://www.tiktok.com/@`+username, "bootstrapIteratingVideos()")
+    jsMethod := fmt.Sprintf("bootstrapIteratingVideos(%d)", config.Config.Limit)
+	actionOutput := executeClientAction(`https://www.tiktok.com/@`+username, jsMethod)
 	return models.ParseUploads(actionOutput)
 }
+
+func GetUserUploadsJson(username string) string {
+    jsMethod := fmt.Sprintf("bootstrapIteratingVideos(%d)", config.Config.Limit)
+	return executeClientAction(`https://www.tiktok.com/@`+username, jsMethod)
+}

models/config/config.go

@@ -15,6 +15,8 @@ var Config struct {
     MetaData      bool
     Quiet         bool
     Deadline      int
+    Limit         int
+    JSONOnly      bool
 }
 
 // GetConfig - Returns Config object
@@ -25,6 +27,8 @@ func GetConfig() {
     metadata := flag.Bool("metadata", false, "Write video metadata to a .json file")
     quiet := flag.Bool("quiet", false, "Supress output")
     deadline := flag.Int("deadline", 1500, "Sets the timout for scraper logic in seconds (used as a workaround for 'context deadline exceeded' error)")
+    limit := flag.Int("limit", 0, "Sets the videos count limit (useful when there too many videos from the user or by hashtag)")
+    jsonOnly := flag.Bool("json", false, "Just get JSON data from scraper (without video downloading)")
     flag.Parse()
 
     args := flag.Args()
@@ -44,5 +48,10 @@ func GetConfig() {
     Config.Debug = *debug
     Config.MetaData = *metadata
     Config.Quiet = *quiet
-	Config.Deadline = *deadline
+    if *jsonOnly {
+        Config.Quiet = true
+    }
+    Config.Deadline = *deadline
+    Config.Limit = *limit
+    Config.JSONOnly = *jsonOnly;
 }

scraper.js

@@ -1,7 +1,7 @@
 optStrings = {
     selectors: {
         feedLoading: 'div.tiktok-loading.feed-loading',
-        modalArrowLeft: 'div.video-card-modal > div > img.arrow-right',
+        modalArrowRight: 'div.video-card-modal > div > img.arrow-right',
         modalClose: '.video-card-modal > div > div.close',
         modalPlayer: 'div > div > main > div.video-card-modal > div > div.video-card-big > div.video-card-container > div > div > video',
         modalShareInput: '.copy-link-container > input',
@@ -30,6 +30,7 @@ optStrings = {
 currentState = {
     preloadCount: 0,
     finished: false,
+    limit: 100
 };
 
 createVidUrlElement = function(outputObj) {
@@ -37,7 +38,7 @@ createVidUrlElement = function(outputObj) {
     urlSetElement.innerText = JSON.stringify(outputObj);
     document.getElementsByTagName(optStrings.tags.resultParentTag)[0].appendChild(urlSetElement);
     currentState.finished = true;
-}
+};
 
 buldVidUrlArray = function(finishCallback) {
     var feedItem = document.getElementsByClassName(optStrings.classes.feedVideoItem)[0];
@@ -46,8 +47,14 @@ buldVidUrlArray = function(finishCallback) {
     var videoArray = [];
     var intervalID = window.setInterval(x => {
         videoArray.push(getCurrentModalVideo());
-
-        var arrowRight = document.querySelectorAll(optStrings.selectors.modalArrowLeft)[0];
+        if(currentState.limit > 0) {
+            if (videoArray.length >= currentState.limit) {
+                window.clearInterval(intervalID);
+                document.querySelector(optStrings.selectors.modalClose).click();
+                finishCallback(videoArray);
+            }
+        }
+        var arrowRight = document.querySelectorAll(optStrings.selectors.modalArrowRight)[0];
         if (arrowRight.classList.contains(optStrings.classes.modalCloseDisabled)) {
             window.clearInterval(intervalID);
             document.querySelector(optStrings.selectors.modalClose).click();
@@ -78,7 +85,7 @@ getCurrentModalVideo = function() {
             link: soundHref,
         },
     };
-}
+};
 
 getCurrentVideo = function() {
     var player = document.querySelector(optStrings.selectors.videoPlayer);
@@ -100,13 +107,19 @@ getCurrentVideo = function() {
             link: soundHref,
         },
     };
-}
+};
 
 scrollWhileNew = function(finishCallback) {
     var state = { count: 0 };
     var intervalID = window.setInterval(x => {
         var oldCount = state.count;
         state.count = document.getElementsByClassName(optStrings.classes.feedVideoItem).length;
+        if(currentState.limit > 0) {
+            if (currentState.preloadCount >= currentState.limit || state.count >= currentState.limit) {
+                finishCallback(createVidUrlElement);
+                window.clearInterval(intervalID);
+            }
+        }
         if (oldCount !== state.count) {
             currentState.preloadCount = state.count;
             window.scrollTo(0, document.body.scrollHeight);
@@ -121,7 +134,8 @@ scrollWhileNew = function(finishCallback) {
     }, 1000);
 };
 
-bootstrapIteratingVideos = function() {
+bootstrapIteratingVideos = function(limit) {
+    currentState.limit = limit;
     scrollWhileNew(buldVidUrlArray);
     return 'bootstrapIteratingVideos';
 };
@@ -130,7 +144,7 @@ bootstrapGetCurrentVideo = function() {
     var video = getCurrentVideo();
     createVidUrlElement(video);
     return 'bootstrapGetCurrentVideo';
-}
+};
 
 init = () => {
     const newProto = navigator.__proto__;

utils/getHashtag.go

@@ -0,0 +1,16 @@
+package utils
+
+import (
+    res "../resources"
+    "fmt"
+    "strings"
+)
+
+// GetHashtagFromURL - Get's tag name from passed url
+func GetHashtagFromURL(str string) string {
+    if match := strings.Contains(str, "/tag/"); match {
+        return strings.Split(str, "/tag/")[1]
+    }
+
+    panic(fmt.Sprintf(res.ErrorCouldNotRecogniseURL, str))
+}

workflows/downloadHashtag.go

@@ -0,0 +1,36 @@
+package workflows
+
+import (
+    client "../client"
+    config "../models/config"
+    utils "../utils"
+    "fmt"
+    "strings"
+)
+
+// CanUseDownloadHashtag - Test's if this workflow can be used for parameter
+func CanUseDownloadHashtag(url string) bool {
+    match := strings.Contains(url, "/tag/")
+    return match
+}
+
+// DownloadHashtag - Download videos marked with given hashtag
+func DownloadHashtag(url string) {
+    uploads := client.GetHashtagUploads(url)
+    uploadCount := len(uploads)
+    hashtag := utils.GetHashtagFromURL(url)
+    downloadDir := fmt.Sprintf("%s/%s", config.Config.OutputPath, hashtag)
+
+    utils.InitOutputDirectory(downloadDir)
+
+    for index, upload := range uploads {
+        downloadVideo(upload, downloadDir)
+        utils.Logf("\r[%d/%d] Downloaded", index+1, uploadCount)
+    }
+    utils.Log()
+}
+
+func GetHashtagJson(url string) {
+    uploads := client.GetHashtagUploads(url)
+    fmt.Printf("%s", uploads)
+}

workflows/downloadMusic.go

@@ -29,3 +29,8 @@ func DownloadMusic(url string) {
     }
     utils.Log()
 }
+
+func GetMusicJson(url string) {
+    uploads := client.GetMusicUploadsJson(url)
+    fmt.Printf("%s", uploads)
+}

workflows/downloadUser.go

@@ -28,3 +28,8 @@ func DownloadUser(username string) {
 	}
 	utils.Log()
 }
+
+func GetUserVideosJson(username string) {
+	uploads := client.GetUserUploadsJson(username)
+    fmt.Printf("%s", uploads)
+}

workflows/startWorkflowByParameter.go

@@ -1,6 +1,7 @@
 package workflows
 
 import (
+	config "../models/config"
 	res "../resources"
 	utils "../utils"
 )
@@ -10,7 +11,11 @@ func StartWorkflowByParameter(url string) {
 
 	// Music
 	if CanUseDownloadMusic(url) {
+		if config.Config.JSONOnly {
+			GetMusicJson(url)
+		} else {
 			DownloadMusic(url)
+		}
 		return
 	}
 
@@ -22,7 +27,22 @@ func StartWorkflowByParameter(url string) {
 
 	// Tiktok user
 	if CanUseDownloadUser(url) {
+		if config.Config.JSONOnly {
+			GetUserVideosJson(utils.GetUsernameFromString(url))
+		} else {
 			DownloadUser(utils.GetUsernameFromString(url))
+		}
+
+		return
+	}
+
+	// Tiktok hashtag
+	if CanUseDownloadHashtag(url) {
+		if config.Config.JSONOnly {
+			GetHashtagJson(url)
+		} else {
+			DownloadHashtag(url)
+		}
 		return
 	}