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Merged
mckaragoz merged 2 commits into from
Nov 4, 2026
Merged

fix(blazor): Prevent file URI origin resolution on Linux #139

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fix(blazor): Prevent file URI origin resolution on Linux
mckaragoz Nov 4, 2026
cfe9d4f
Add Tests
mckaragoz Nov 4, 2026
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10 changes: 6 additions & 4 deletions src/client/CodeBeam.UltimateAuth.Client.Blazor/Infrastructure/UAuthRequestClient.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -149,10 +149,12 @@ public async Task<TTryResult> TryAndCommitAsync<TTryResult>(string tryEndpoint,
{
var basePath = _options.Endpoints.BasePath;

if (Uri.TryCreate(basePath, UriKind.Absolute, out var uri))
return uri.GetLeftPart(UriPartial.Authority);
if (!Uri.TryCreate(basePath, UriKind.Absolute, out var uri))
return null;

// Relative BasePath: JS automatically uses the current origin.
return null;
if (uri.Scheme != Uri.UriSchemeHttp && uri.Scheme != Uri.UriSchemeHttps)
return null;

return uri.GetLeftPart(UriPartial.Authority);
}
}
41 changes: 37 additions & 4 deletions tests/CodeBeam.UltimateAuth.Tests.Unit/Client/Blazor/UAuthRequestClientTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -24,14 +24,17 @@ public UAuthRequestClientTests()
.Returns(Task.CompletedTask);
}

private UAuthRequestClient CreateSut(UAuthClientProfile profile = UAuthClientProfile.BlazorWasm)
private UAuthRequestClient CreateSut(UAuthClientProfile profile = UAuthClientProfile.BlazorWasm, string? basePath = null)
{
var options = Options.Create(new UAuthClientOptions
var options = new UAuthClientOptions
{
ClientProfile = profile
});
};

if (basePath is not null)
options.Endpoints.BasePath = basePath;

return new UAuthRequestClient(JSInterop.JSRuntime, _bootstrapper.Object, options);
return new UAuthRequestClient(JSInterop.JSRuntime, _bootstrapper.Object, Options.Create(options));
}

[Fact]
Expand Down Expand Up @@ -178,6 +181,36 @@ public async Task ObservedLogoutReturnsHttpRejectionRatherThanSubmittingAnUnobse
Assert.Equal("logout", GetProperty<string>(invocation.Arguments.Single()!, "mode"));
}

[Theory]
[InlineData("/auth", null)]
[InlineData("auth", null)]
[InlineData("https://example.com/auth", "https://example.com")]
[InlineData("http://localhost:5000/auth", "http://localhost:5000")]
public async Task SendFormAsync_ResolvesTrustedOriginCorrectly(string basePath, string? expectedOrigin)
{
// Arrange
JSInterop
.Setup<UAuthTransportResult>("uauth.post", _ => true)
.SetResult(CreateTransportResult(200));

var sut = CreateSut(basePath: basePath);

// Act
await sut.SendFormAsync("/auth/validate");

// Assert
var invocation = JSInterop.Invocations
.Single(x => x.Identifier == "uauth.post");

var options = invocation.Arguments.Single()!;

GetProperty<string>(options, "url")
.Should().Be("/auth/validate");

GetProperty<string?>(options, "trustedOrigin")
.Should().Be(expectedOrigin);
}

private sealed class TestTryResult
{
}
Expand Down
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