Link per il download forniti da YouTube API return 403 [chiuso]

Sto provando a scaricare tutti i file disponibili che sono diverse qualità di un singolo video usando l'API di YouTube, ma ogni URL che seguo per scaricare il video risulta in un 403.

script:

#!/bin/bash

_video_info=$(wget -qO- -- "http://www.youtube.com/get_video_info?&video_id=$1&el=detailpage&ps=default&eurl=&gl=US&hl=en")
_video_urls=$(sed -e 's|%25|%|g' -e 's|%25|%|g' -e 's|%3A|:|g' -e 's|%2F|/|g' -e 's|%26|\&|g' -e 's|%3D|=|g' -e 's|%3F|?|g' -e 's|%2C|,|g' -e 's|%2B|+|g' -e 's|%3B|;|g' -e 's|%22|"|g' -e 's|.*url_encoded_fmt_stream_map=url=\(.*&itag=[0-9]*\).*|\1|' -e 's|,url=|\n|g' <<< "${_video_info}")
_video_formats=$(sed 's|.*fmt_list=\([^\&]*\)\&.*|\1|' <<< "${_video_info}")

while read -r _video_download_url; do
    wget "${_video_download_url}"
done <<< "${_video_urls}"

Produzione:

$ ./ytdl 5_xCfrpif4Q
--2011-08-19 00:14:21--  http://o-o.preferred.mil01s10.v1.lscache5.c.youtube.com/videoplayback?sparams=id,expire,ip,ipbits,itag,ratebypass&fexp=907312,904535,913501,906918&itag=43&ip=93.0.0.0&signature=32944F059B26E01072437068EAC6449FCD975383.2272568B833A7A706A82236297B6D6B8D900D330&sver=3&ratebypass=yes&expire=1313733600&key=yt1&ipbits=8&id=e7fc427eba627f84&quality=medium&fallback_host=tc.v1.cache5.c.youtube.com&type=video/webm;+codecs=%22vp8.0,+vorbis%22&itag=43
Resolving o-o.preferred.mil01s10.v1.lscache5.c.youtube.com... 173.194.2.38, 2a00:1450:4002:3::6
Connecting to o-o.preferred.mil01s10.v1.lscache5.c.youtube.com|173.194.2.38|:80... connected.
HTTP request sent, awaiting response... 403 Forbidden
2011-08-19 00:14:22 ERROR 403: Forbidden.

--2011-08-19 00:14:22--  http://o-o.preferred.mil01s10.v15.lscache6.c.youtube.com/videoplayback?sparams=id,expire,ip,ipbits,itag,algorithm,burst,factor&fexp=907312,904535,913501,906918&algorithm=throttle-factor&itag=34&ip=93.0.0.0&burst=40&sver=3&signature=C623D3002F9BC919B8D83666DB1274D9E37F9B63.A6FF45792995744504C9DF39EDEE8326D74450C5&expire=1313733600&key=yt1&ipbits=8&factor=1.25&id=e7fc427eba627f84&quality=medium&fallback_host=tc.v15.cache6.c.youtube.com&type=video/x-flv&itag=34
Resolving o-o.preferred.mil01s10.v15.lscache6.c.youtube.com... 173.194.2.56, 2a00:1450:4002:3::18
Connecting to o-o.preferred.mil01s10.v15.lscache6.c.youtube.com|173.194.2.56|:80... connected.
HTTP request sent, awaiting response... 403 Forbidden
2011-08-19 00:14:22 ERROR 403: Forbidden.

--2011-08-19 00:14:22--  http://o-o.preferred.mil01s10.v13.lscache5.c.youtube.com/videoplayback?sparams=id,expire,ip,ipbits,itag,ratebypass&fexp=907312,904535,913501,906918&itag=18&ip=93.0.0.0&signature=88D969809C0625D2B7AC600C0D0C127F7AD72022.CA5355DAEF26B2AADBD6AAFF1726A331C54850C0&sver=3&ratebypass=yes&expire=1313733600&key=yt1&ipbits=8&id=e7fc427eba627f84&quality=medium&fallback_host=tc.v13.cache5.c.youtube.com&type=video/mp4;+codecs=%22avc1.42001E,+mp4a.40.2%22&itag=18
Resolving o-o.preferred.mil01s10.v13.lscache5.c.youtube.com... 173.194.2.48, 2a00:1450:4002:3::10
Connecting to o-o.preferred.mil01s10.v13.lscache5.c.youtube.com|173.194.2.48|:80... connected.
HTTP request sent, awaiting response... 403 Forbidden
2011-08-19 00:14:22 ERROR 403: Forbidden.

--2011-08-19 00:14:22--  http://o-o.preferred.mil01s10.v1.lscache8.c.youtube.com/videoplayback?sparams=id,expire,ip,ipbits,itag,algorithm,burst,factor&fexp=907312,904535,913501,906918&algorithm=throttle-factor&itag=5&ip=93.0.0.0&burst=40&sver=3&signature=2D1C0BD8F7B617691F9905E79502E1FFFFF86611.C19F9CC435873BBC955C5FF82F60F7B90D140AFD&expire=1313733600&key=yt1&ipbits=8&factor=1.25&id=e7fc427eba627f84&quality=small&fallback_host=tc.v1.cache8.c.youtube.com&type=video/x-flv&itag=5
Resolving o-o.preferred.mil01s10.v1.lscache8.c.youtube.com... 173.194.2.38, 2a00:1450:4002:3::6
Connecting to o-o.preferred.mil01s10.v1.lscache8.c.youtube.com|173.194.2.38|:80... connected.
HTTP request sent, awaiting response... 403 Forbidden
2011-08-19 00:14:22 ERROR 403: Forbidden.

Come puoi vedere wgetdall'output, gli URL sembrano sintatticamente corretti, ma i server restituiscono sempre un 403. Questo accade indipendentemente dal video che provo.

Sto cercando di scaricare i file dallo stesso indirizzo IP e computer con cui ho generato i collegamenti. Qualche idea?

Probabilmente stai ricevendo un 403errore a causa della mancata autenticazione tramite il tuo wgetcomando. Youtube consente solo di scaricare video di tua proprietà. Per questo dovrai essere autenticato.

Youtube TOS

Supporto per il download di Youtube

Penso che tu debba studiare attentamente questa pagina web .

Non dimenticare che Youtube è un prodotto inventato da Google. Proprio come Google Map, devi prima ottenere la chiave API