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Add support for Bearer token in action archive downloads#4321

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Merged
TingluoHuang merged 1 commit into from
Mar 31, 2026
Merged

Add support for Bearer token in action archive downloads #4321

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1 change: 1 addition & 0 deletions src/Runner.Common/Constants.cs
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Original file line numberDiff line numberDiff line change
Expand Up@@ -178,6 +178,7 @@ public static class Features
public static readonly string SendJobLevelAnnotations = "actions_send_job_level_annotations";
public static readonly string EmitCompositeMarkers = "actions_runner_emit_composite_markers";
public static readonly string BatchActionResolution = "actions_batch_action_resolution";
public static readonly string UseBearerTokenForCodeload = "actions_use_bearer_token_for_codeload";
}

// Node version migration related constants
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23 changes: 18 additions & 5 deletions src/Runner.Worker/ActionManager.cs
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Expand Up@@ -1367,16 +1367,29 @@ private static string GetDownloadInfoLookupKey(Pipelines.ActionStep action)
return $"{repositoryReference.Name}@{repositoryReference.Ref}";
}

private AuthenticationHeaderValue CreateAuthHeader(string token)
private AuthenticationHeaderValue CreateAuthHeader(IExecutionContext executionContext, string downloadUrl, string token)
{
if (string.IsNullOrEmpty(token))
{
return null;
}

var base64EncodingToken = Convert.ToBase64String(Encoding.UTF8.GetBytes($"x-access-token:{token}"));
HostContext.SecretMasker.AddValue(base64EncodingToken);
return new AuthenticationHeaderValue("Basic", base64EncodingToken);
if (executionContext.Global.Variables.GetBoolean(Constants.Runner.Features.UseBearerTokenForCodeload) == true &&
Uri.TryCreate(downloadUrl, UriKind.Absolute, out var parsedUrl) &&
!string.IsNullOrEmpty(parsedUrl?.Host) &&
!string.IsNullOrEmpty(parsedUrl?.PathAndQuery) &&
(parsedUrl.Host.StartsWith("codeload.", StringComparison.OrdinalIgnoreCase) || parsedUrl.PathAndQuery.StartsWith("/_codeload/", StringComparison.OrdinalIgnoreCase)))
{
Trace.Info("Using Bearer token for action archive download directly to codeload.");
return new AuthenticationHeaderValue("Bearer", token);
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@TingluoHuangTingluoHuangMar 31, 2026

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in case we are talking to codeload directly, pass bearer header

}
else
{
Trace.Info("Using Basic token for action archive download.");
var base64EncodingToken = Convert.ToBase64String(Encoding.UTF8.GetBytes($"x-access-token:{token}"));
HostContext.SecretMasker.AddValue(base64EncodingToken);
return new AuthenticationHeaderValue("Basic", base64EncodingToken);

@TingluoHuangTingluoHuangMar 31, 2026

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the basic header works fine with codeload URL and api.github.com URL.

}
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}
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private async Task DownloadRepositoryArchive(IExecutionContext executionContext, string downloadUrl, string downloadAuthToken, string archiveFile)
Expand All@@ -1401,7 +1414,7 @@ private async Task DownloadRepositoryArchive(IExecutionContext executionContext,
using (var httpClientHandler = HostContext.CreateHttpClientHandler())
using (var httpClient = new HttpClient(httpClientHandler))
{
httpClient.DefaultRequestHeaders.Authorization = CreateAuthHeader(downloadAuthToken);
httpClient.DefaultRequestHeaders.Authorization = CreateAuthHeader(executionContext, downloadUrl, downloadAuthToken);

httpClient.DefaultRequestHeaders.UserAgent.AddRange(HostContext.UserAgents);
using (var response = await httpClient.GetAsync(downloadUrl))
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