CEF builds (403) Forbidden downloading using powershell

[amaitland]

Hey,

So to package the CEF Standard Distribution for use with CefSharp, I use a powershell script which downloads and builds CEF for dynamic linking.

Couple of days ago I went to package up 132.3.2+g4997b2f+chromium-132.0.6834.161 and now I'm getting a 403 forbidden.

I can download the files manually with the browser. When running locally on my machine (Australia) or on appveyor I get the same error.

https://ci.appveyor.com/project/cefshar ... 489303#L41

My guess is it's the powershell script specifically being blocked.

Was this a deliberate change? I've been using powershell for years to package CEF.

Thanks,
Alex

[magreenblatt]

Direct downloads work for me via (e.g.) wget. What powershell command are you using?

Code: Select all

% wget https://cef-builds.spotifycdn.com/cef_binary_132.3.2%2Bg4997b2f%2Bchromium-132.0.6834.161_windows64.tar.bz2
--2025-02-11 12:37:00--  https://cef-builds.spotifycdn.com/cef_binary_132.3.2%2Bg4997b2f%2Bchromium-132.0.6834.161_windows64.tar.bz2
Resolving cef-builds.spotifycdn.com (cef-builds.spotifycdn.com)... 2600:1405:d400:5::173e:6a1b, 2600:1405:d400:5::173e:6a05, 23.62.106.5, ...
Connecting to cef-builds.spotifycdn.com (cef-builds.spotifycdn.com)|2600:1405:d400:5::173e:6a1b|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 350639284 (334M) [application/x-tar]
Saving to: ‘cef_binary_132.3.2+g4997b2f+chromium-132.0.6834.161_windows64.tar.bz2’

cef_binary_132.3.2+g4997b 100%[=====================================>] 334.40M  20.1MB/s    in 17s     

2025-02-11 12:37:18 (19.3 MB/s) - ‘cef_binary_132.3.2+g4997b2f+chromium-132.0.6834.161_windows64.tar.bz2’ saved [350639284/350639284]

[amaitland]

Thanks for testing. I tried with curl on windows and that also appears to be working

Currently the script is using System.Net.WebClient.DownloadFile

https://github.com/cefsharp/cef-binary/ ... d.ps1#L541

If it's not something that's been specifically blocked then I'll try switch to Invoke-WebRequest

Thanks

[amaitland]

Same error with Invoke-WebRequest

Code: Select all

Caught an exception: The remote server returned an error: (403) Forbidden.
        Exception Type: System.Net.WebException
        Stack Trace: at DownloadCefBinaryAndUnzip, C:\projects\cef-binary\build.ps1: line 540
        at <ScriptBlock>, C:\projects\cef-binary\build.ps1: line 722
        at <ScriptBlock>, <No file>: line 1


Effectively the same result with Start-BitsTransfer

[amaitland]

After further investigation I think the 403 is misleading. It would appear the URLs are now case sensitive.

My original url format which has worked up until recently is

Code: Select all

https://cef-builds.spotifycdn.com/cef_binary_132.3.2%2bg4997b2f%2bchromium-132.0.6834.161_windows32.tar.bz2


The url from the spotify index.html which has capital B for the encoded + symbol

Code: Select all

https://cef-builds.spotifycdn.com/cef_binary_132.3.2%2Bg4997b2f%2Bchromium-132.0.6834.161_windows32.tar.bz2


Appears to be downloading now, sorry for wasting your time!

[magreenblatt]

No worries