Pywidevin download problem：HTTPError: 400 Client Error: Bad Request for url

[jay_670]

I want to download this video from “https://www.nba.com/watch/video/2016-dunk-contest-lavine-vs-gordon-best-ever” ，With the help of our forum friends I already know the key is “964f42e46638932b33427461f136459f:06ee868164f7d156 637fde3fa500a671”
But I still want to try running my code to get the key，I got the WVD from the Android emulator ，Then run the following code using pywidevine-1.8.0 and keep getting 400 errors：

from pywidevine.cdm import Cdm
from pywidevine.device import Device
from pywidevine.pssh import PSSH

import requests

# prepare pssh
pssh = PSSH("AAAAgHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGAIARIQlk9C5GY4kyszQnRh8TZFnxoMbWVkaWFraW5kbmJhIjpOQkFfMjAyMzAxMjkwOTM3TkJBX19fX19WSURFT1NfX05CQUVfMjYzMDk0MV9KaXRwX1JlYWNoX0hEMgA=")

# load device
device = Device.load("/Users/czm/Downloads/m3u8tools/pywidevine-master/pywidevine/WVD/google_android_sdk_built_for_arm64_15.0.0_0882c76f_22586_l3.wvd")

# load cdm
cdm = Cdm.from_device(device)

# open cdm session
session_id = cdm.open()

# get license challenge
challenge = cdm.get_license_challenge(session_id, pssh)

# send license challenge (assuming a generic license server SDK with no API front)
licence = requests.post("https://ottapp-appgw-amp.nba.com/v1/client/get-widevine-license?ownerUid=azuki&mediaId=NBA_202301290937NBA_____VIDEOS__NBAE_2630941_Jitp_Reach_HD&sessionId=984a7c92-ceb3-4842-9a02-b95e368a2f54&is_dvr=false", data=challenge)
licence.raise_for_status()

# parse license challenge
cdm.parse_license(session_id, licence.content)

# print keys
for key in cdm.get_keys(session_id):
    print(f"[{key.type}] {key.kid.hex}:{key.key.hex()}")

# close session, disposes of session data
cdm.close(session_id) 

error code：

(env) czm@czmdeMac-Studio pywidevine % python3 nba.py         
/Users/czm/Downloads/m3u8tools/pywidevine-1.8.0/pywidevine/env/lib/python3.9/site-packages/urllib3/__init__.py:35: NotOpenSSLWarning: urllib3 v2 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with 'LibreSSL 2.8.3'. See: https://github.com/urllib3/urllib3/issues/3020
  warnings.warn(
Traceback (most recent call last):
  File "/Users/czm/Downloads/m3u8tools/pywidevine-1.8.0/pywidevine/nba.py", line 24, in <module>
    licence.raise_for_status()
  File "/Users/czm/Downloads/m3u8tools/pywidevine-1.8.0/pywidevine/env/lib/python3.9/site-packages/requests/models.py", line 1021, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 400 Client Error: Bad Request for url: https://ottapp-appgw-amp.nba.com/v1/client/get-widevine-license?ownerUid=azuki&mediaId=NBA_202301290937NBA_____VIDEOS__NBAE_2630941_Jitp_Reach_HD&sessionId=984a7c92-ceb3-4842-9a02-b95e368a2f54&is_dvr=false

Could you please tell me the cause of this problem? By the way, the python version is 3.12. I don't know if this version is too high

[A_n_g_e_l_a]

Read the error message. It tries to be helpful. It says you have made a bad request.

Bad Request for url: https://ottapp-appgw-amp.nba.com/v1/client/get-widevine-license?ownerUid=azuki&mediaId...4&is_dvr=false

That simply means you have not sent the required data in the correct format to the the license server.

There is a remarkable lack of header or other data sent to the license server in your code - doesn't it need any? If that is true then try by hand with l3.py. If not use httptoolkit to watch the transaction from a browser and make sure you can see all the header an data information sent to the license server. Your job then is to do that process via code.

[jay_670]

Read the error message. It tries to be helpful. It says you have made a bad request.

Bad Request for url: https://ottapp-appgw-amp.nba.com/v1/client/get-widevine-license?ownerUid=azuki&mediaId...4&is_dvr=false

That simply means you have not sent the required data in the correct format to the the license server.

There is a remarkable lack of header or other data sent to the license server in your code - doesn't it need any? If that is true then try by hand with l3.py. If not use httptoolkit to watch the transaction from a browser and make sure you can see all the header an data information sent to the license server. Your job then is to do that process via code.

Pywidevin 1.8.0 does not require header files

[shellcmd]

my god, who told you pywidevine 1.8.0 no need headers? if the server requires headers, you must provide headers, either in your script or call a headers.py file separately

[white_snake]

Read the error message. It tries to be helpful. It says you have made a bad request.

Bad Request for url: https://ottapp-appgw-amp.nba.com/v1/client/get-widevine-license?ownerUid=azuki&mediaId...4&is_dvr=false

That simply means you have not sent the required data in the correct format to the the license server.

There is a remarkable lack of header or other data sent to the license server in your code - doesn't it need any? If that is true then try by hand with l3.py. If not use httptoolkit to watch the transaction from a browser and make sure you can see all the header an data information sent to the license server. Your job then is to do that process via code.

...which I've already pointed out to him here. He then actually added the three required headers to his script, but has now removed them once again.

Pywidevin 1.8.0 does not require header files

Oh well, then good luck making it work without headers.

Jokes apart, you probably just need fresh headers (don't use headers from days ago) and a non-banned CDM.

Edit: I hope you probably just mean that the newest version of the L3 script is not setup to use an external headers.py file. That's because the headers are defined inside the main script, it doesn't mean that requests don't require headers.

[A_n_g_e_l_a]

pywidevin 1.8.0 does not require header files

That's the spirit! Don't be told!

There are nine million bicycles in Beijing
That's a fact
It's a thing we can't deny
Like the fact that I will love you till I die

[jay_670]

my god, who told you pywidevine 1.8.0 no need headers? if the server requires headers, you must provide headers, either in your script or call a headers.py file separately

[Attachment 77681 - Click to enlarge]

https://forum.videohelp.com/threads/412404-%5BfriDay-Video%5D-Max-retries-exceeded-wit...y-SSL-error%29 #9

with new pywidevine(1.5.3), just input pssh and license url, no header needed, it worked.no ssl problem.
Image
[Attachment 75014 - Click to enlarge]
Last edited by shellcmd; 23rd Nov 2023 at 17:59.

[A_n_g_e_l_a]

with new pywidevine(1.5.3), just input pssh and license url, no header needed, it worked.no ssl problem.

That is not a statement that refers to pywidevine generally BUT to that particular website (whatever it was).

[jay_670]

with new pywidevine(1.5.3), just input pssh and license url, no header needed, it worked.no ssl problem.

That is not a statement that refers to pywidevine generally BUT to that particular website (whatever it was).

That was my misunderstanding and I'm sorry

[shellcmd]

alright, finally found that is my faults, i think i must apolpgize and delete that reply to prevent misleading more people.

[jay_670]

alright, finally found that is my faults, i think i must apolpgize and delete that reply to prevent misleading more people.

It's okay. I already added the header file, but now I get a new error result. I hope you can check it for me

Traceback (most recent call last):
  File "nbatest2.py", line 35, in <module>
    licence.raise_for_status()
  File "D:\pywidevine-1.8.0\pywidevine\env\lib\site-packages\requests\models.py", line 1021, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 469 Client Error: Unknown for url: https://ottapp-appgw-amp.nba.com/v1/client/get-widevine-license?ownerUid=azuki&mediaId=NBA_202301290937NBA_____VIDEOS__NBAE_2630941_Jitp_Reach_HD&sessionId=23709fc5-98ea-4108-b65d-801f29bf4195&is_dvr=false

[jay_670]

Read the error message. It tries to be helpful. It says you have made a bad request.

Bad Request for url: https://ottapp-appgw-amp.nba.com/v1/client/get-widevine-license?ownerUid=azuki&mediaId...4&is_dvr=false

That simply means you have not sent the required data in the correct format to the the license server.

There is a remarkable lack of header or other data sent to the license server in your code - doesn't it need any? If that is true then try by hand with l3.py. If not use httptoolkit to watch the transaction from a browser and make sure you can see all the header an data information sent to the license server. Your job then is to do that process via code.

...which I've already pointed out to him here. He then actually added the three required headers to his script, but has now removed them once again.

Pywidevin 1.8.0 does not require header files

Oh well, then good luck making it work without headers.

Jokes apart, you probably just need fresh headers (don't use headers from days ago) and a non-banned CDM.

Edit: I hope you probably just mean that the newest version of the L3 script is not setup to use an external headers.py file. That's because the headers are defined inside the main script, it doesn't mean that requests don't require headers.

I tried to extract and generate the wvd file from Android Studio, and adding the header file still encountered the following error
Traceback (most recent call last):
File "nbatest2.py", line 35, in <module>
licence.raise_for_status()
File "D:\pywidevine-1.8.0\pywidevine\env\lib\site-packages\requests\models.py", line 1021, in raise_for_status
raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 469 Client Error: Unknown for url: https://ottapp-appgw-amp.nba.com/v1/client/get-widevine-license?ownerUid=azuki&mediaId...5&is_dvr=false

[A_n_g_e_l_a]

I tried to extract and generate the wvd file from Android Studio

You use the word 'tried'. Did you succeed? Did you recover two files client_id_key and client_id_blob? (We call these your CDM. ) Have you tested your CDM against the bitmovin.com website to check they work?

[jay_670]

I tried to extract and generate the wvd file from Android Studio

You use the word 'tried'. Did you succeed? Did you recover two files client_id_key and client_id_blob? (We call these your CDM. ) Have you tested your CDM against the bitmovin.com website to check they work?

of course,it work.