YT to MP3/MP4 and captcha

[Szmycu]

Inspired by this tutorial I wanted to make MP4 downloader too

How code looks in the beggining

PHP Code:

#include <_httprequest.au3>
#include <string.au3>
$url = InputBox('YoububeToMp3','Type url video...')
if @error Then Exit
YoububeToMp3($url)
Func YoububeToMp3($url,$dir=@ScriptDir,$type='mp3')
$id = _StringBetween($url,'watch?v=','')[0]
$oIE = _httprequest(2,'https://www.download-mp3-youtube.com/api/?api_key=MzQ3NzQzNDYz&format='&$type&'&video_id='&$id)
$link = _StringBetween($oIE,'src="','"')[0]
$oIE = _httprequest(2,$link)
$name = _StringBetween($oIE,'<div class="buttonTitle">','</div>')[0]
$oIE =_StringBetween($oIE,'id="downloadButton" href="','"')[0]
$linkdowload = 'https://www.convertmp3.io'&$oIE
ProgressOn('', 'Downloading '&$name&'.'&$type, '0%')
Local $BinaryData = _HttpRequest(3, $linkdowload, '', '', '', '', '', ProgressFunc)
If @error Then
MsgBox(16,'Error',"Couldn't download file!!")
   Exit
EndIf
ProgressOff()
_HttpRequest_Test($BinaryData, $dir & '\'&$name&'.'&$type,Default,False)
EndFunc
Func ProgressFunc($NowSize, $TotalSize)
$iPercent = Round(100 * $NowSize / $TotalSize, 2)
ProgressSet ($iPercent, $iPercent & '%', 'Downloading...' & Round($NowSize / (1024 ^ 2), 2) & 'Mb')
EndFunc 


So I founded that site with MP4 API too. There is written how to make API link similar like above in script

https://lolyoutube.com

How could look example link for this API

https://lolyoutube.com/download/mp3/HLVjWH8deew/1537966320

so how code looks for lolyyoutube downloader

PHP Code:

 ; make request for the link
    $oIE = _httprequest(2,'https://lolyoutube.com/download/' & $format & '/' & $id & '/' & $timestamp)
    ; but there is no src attrib 
    $link = _StringBetween($oIE,'src="','"')[0] ; iframe button with src attribute
    ; so cant make http request to the link
    $oIE = _httprequest(2,$link) 


as we can see button has no src attrib and I cant get link for this, its generated in Javascript and how to click that button?

Next is Recaptcha button too similar too this button

I tracked whats going on on and got something like that.



how to click that captcha with autoit?



see something here is like

 ; Click on ReCaptcha checkbox
        $idivs = _IETagNameGetCollection($iframe, 'div')
        For $idiv In $idivs
            If $idiv.classname = 'recaptcha-checkbox-checkmark' And $idiv.attributes.item('role').value="presentation" Then
                $idiv.click()
            EndIf
        Next

and it click captcha i saw but it has to open IE

[chronicles666]

Why make your life harder trying to use such shoddy websites, when youtube-dl already exists and you can use that instead?
No captchas, no manual HTML parsing, etc. It's implemented in Python, and you can use it as a python library straight away, but if you (don't know/don't want to get to know) Python, then you can just call the youtube-dl script from AutoIt with Run, RunWait, and the likes.
It's going to be much easier to parse the output of this command and retrieve data of interest, eg. stream-specifiers.
You can download mp4 files straight away from YouTube, but as for mp3, YouTube doesn't use that format internally, so you either download audio encoded with Opus/AAC/Vorbis and use that, or if you really need mp3, you can transcode with ffmpeg like this:

ffmpeg -i input.m4a -c:a libmp3lame -q:a 2 output.mp3

For details, refer to the documentation of ffmpeg, which you can find here:

[Szmycu]

gratefuly thanks