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This commit is contained in:
Joseph Doherty
2026-08-07 07:08:27 -04:00
40 changed files with 2591 additions and 121 deletions
File diff suppressed because one or more lines are too long
@@ -21,11 +21,11 @@ Operating constraints carried from prior work:
| CLI-37 | Medium | P1 | M | CLI-38 | Done | Status-array validation must branch on `category` per the proto contract (4-vs-1 divergence) |
| CLI-38 | Medium | P1 | S | — | Done | Align .NET/Go/Java on `hresult < 0` — lands prior CLI-08 and cures the design-doc drift |
| CLI-39 | Medium | P1 | S | CLI-35..38, CLI-45 | Not started | Bump client versions off the already-published 0.1.2 before the next publish; add registry-collision guard |
| CLI-40 | Low | — | M | — | Not started | Port the exact-secret credential scrub to Rust/Java/.NET |
| CLI-41 | Low | — | M | — | Not started | Uniform malformed-reply contract for AuthenticateUser/ArchestrAUserToId/AddBufferedItem |
| CLI-40 | Low | — | M | — | Done | Port the exact-secret credential scrub to Rust/Java/.NET |
| CLI-41 | Low | — | M | — | Done | Uniform malformed-reply contract for AuthenticateUser/ArchestrAUserToId/AddBufferedItem |
| CLI-42 | Low | P1 | S | — | Not started | Document the vendored Rust proto layout (CLI-02's missing doc half) |
| CLI-43 | Low | — | S | — | Not started | Java style guide still prescribes "Java 21 preferred" |
| CLI-44 | Low | — | S | — | Not started | Go event goroutine can mislabel a genuine terminal error as `ErrSlowConsumer` |
| CLI-44 | Low | — | S | — | Done | Go event goroutine can mislabel a genuine terminal error as `ErrSlowConsumer` |
| CLI-45 | Low | P1 | M | — | Done | Standardize CLI credential env-var name and fail fast on missing/empty passwords |
Cross-domain dependencies: **CLI-35/CLI-36 pair with GWC-25** (gateway emits `oldest_available_sequence = 0` on an empty replay ring — the server-side half of the same reconnect story; the CLI fixes here are independently landable but the end-to-end resume walk in the smoke matrix needs both). **CLI-39 pairs with the publishing process** (`scripts/pack-clients.ps1`, `scripts/tag-go-module.ps1`, Gitea package registry).
@@ -0,0 +1,96 @@
using ZB.MOM.WW.MxGateway.Contracts.Proto;
namespace ZB.MOM.WW.MxGateway.Client.Tests;
/// <summary>
/// Unit tests for <see cref="MxGatewaySecretRedaction"/> — the exact-substring scrub applied to
/// diagnostic text and rebuilt exceptions before they leave the client on a failure path.
/// </summary>
public sealed class MxGatewaySecretRedactionTests
{
[Fact]
public void Redact_ReplacesEveryOccurrenceOfSecret()
{
string result = MxGatewaySecretRedaction.Redact(
"pw=hunter2 retry pw=hunter2 again hunter2",
"hunter2");
Assert.DoesNotContain("hunter2", result, StringComparison.Ordinal);
Assert.Equal("pw=<redacted> retry pw=<redacted> again <redacted>", result);
}
[Fact]
public void Redact_ScrubsBothSecretsWhenOneIsSubstringOfTheOther()
{
// "secret" is a substring of "secretPassword"; both must be fully scrubbed regardless of
// supplied order — no residual leak of either verbatim value.
string result = MxGatewaySecretRedaction.Redact(
"a=secretPassword b=secret",
"secret",
"secretPassword");
Assert.DoesNotContain("secretPassword", result, StringComparison.Ordinal);
Assert.DoesNotContain("secret", result, StringComparison.Ordinal);
}
[Fact]
public void Redact_WithNullSecretsArray_ReturnsMessageUnchanged()
{
const string message = "nothing to scrub here";
string result = MxGatewaySecretRedaction.Redact(message, null!);
Assert.Equal(message, result);
}
[Fact]
public void Redact_WithEmptySecretsArray_ReturnsMessageUnchanged()
{
const string message = "nothing to scrub here";
string result = MxGatewaySecretRedaction.Redact(message);
Assert.Equal(message, result);
}
[Fact]
public void Redact_IgnoresWhitespaceOnlySecret()
{
// A whitespace-only secret must not over-redact the internal spaces of the message.
const string message = "user operator logged in";
string result = MxGatewaySecretRedaction.Redact(message, " ");
Assert.Equal(message, result);
}
[Fact]
public void Redacted_PreservesConcreteSubtypeAndDoesNotChainSecretBearingOriginal()
{
const string secret = "hunter2";
Exception transportCause = new InvalidOperationException("transport reset");
MxGatewaySessionException original = new(
$"session rejected credential '{secret}'",
"session-1",
"correlation-1",
new ProtocolStatus { Code = ProtocolStatusCode.SessionNotReady, Message = $"echoed '{secret}'" },
hResult: -1,
statuses: [new MxStatusProxy { DiagnosticText = $"denied '{secret}'" }],
innerException: transportCause);
MxGatewayException redacted = MxGatewaySecretRedaction.Redacted(original, secret);
// Concrete runtime type is preserved.
Assert.IsType<MxGatewaySessionException>(redacted);
// The secret is gone from the message and every structured accessor.
Assert.DoesNotContain(secret, redacted.Message, StringComparison.Ordinal);
Assert.DoesNotContain(secret, redacted.ToString(), StringComparison.Ordinal);
Assert.DoesNotContain(secret, redacted.ProtocolStatus!.Message, StringComparison.Ordinal);
Assert.All(redacted.Statuses, status =>
Assert.DoesNotContain(secret, status.DiagnosticText, StringComparison.Ordinal));
Assert.Contains("<redacted>", redacted.Message, StringComparison.Ordinal);
// The secret-bearing original is NOT chained; the original's transport cause is carried.
Assert.NotSame(original, redacted.InnerException);
Assert.Same(transportCause, redacted.InnerException);
}
}
@@ -0,0 +1,165 @@
using Google.Protobuf;
using ZB.MOM.WW.MxGateway.Contracts.Proto;
namespace ZB.MOM.WW.MxGateway.Client.Tests;
/// <summary>
/// Tests for the credential-scrub (CLI-40) and malformed-reply (CLI-41) contracts on the
/// credential and id-returning session helpers, driven from shared behavior fixtures.
/// </summary>
public sealed class MxGatewaySessionReplyContractTests
{
/// <summary>
/// CLI-40: when MXAccess echoes the submitted credential back in its failure diagnostic,
/// the surfaced exception message must scrub it to the library redaction marker.
/// </summary>
[Fact]
public async Task AuthenticateUserAsync_RedactsEchoedCredentialInFailureMessage()
{
const string password = "sup3rSecretVerify9f3a2b";
FakeGatewayTransport transport = CreateTransport();
transport.AddInvokeReply(ReadReplyFixture("authenticate-user.echoed-credential.reply.json"));
await using MxGatewayClient client = CreateClient(transport);
MxGatewaySession session = await client.OpenSessionAsync();
MxAccessException exception = await Assert.ThrowsAsync<MxAccessException>(
async () => await session.AuthenticateUserAsync(12, "operator", password));
Assert.DoesNotContain(password, exception.Message, StringComparison.Ordinal);
Assert.Contains("<redacted>", exception.Message, StringComparison.Ordinal);
// ToString() is what logging frameworks emit; the secret-bearing original must not be
// chained as an inner exception where it would re-surface the credential verbatim.
Assert.DoesNotContain(password, exception.ToString(), StringComparison.Ordinal);
}
/// <summary>
/// CLI-40: the redacted exception must not leak the echoed credential through any structured
/// accessor either — <see cref="MxAccessException.Reply"/> (protocol message, diagnostic
/// message, and each MXSTATUS_PROXY diagnostic text) and <see cref="MxGatewayException.Statuses"/>
/// all carry the server-echoed credential verbatim before the fix. Both the OK+negative-HRESULT
/// and the MXACCESS_FAILURE reply route to <see cref="MxAccessException"/>, so both must scrub.
/// </summary>
/// <param name="fixture">The echoed-credential reply fixture to drive.</param>
[Theory]
[InlineData("authenticate-user.echoed-credential.reply.json")]
[InlineData("authenticate-user.echoed-credential-mxaccess-failure.reply.json")]
public async Task AuthenticateUserAsync_RedactsEchoedCredentialInStructuredAccessors(string fixture)
{
const string password = "sup3rSecretVerify9f3a2b";
FakeGatewayTransport transport = CreateTransport();
transport.AddInvokeReply(ReadReplyFixture(fixture));
await using MxGatewayClient client = CreateClient(transport);
MxGatewaySession session = await client.OpenSessionAsync();
MxAccessException exception = await Assert.ThrowsAsync<MxAccessException>(
async () => await session.AuthenticateUserAsync(12, "operator", password));
Assert.DoesNotContain(password, exception.Message, StringComparison.Ordinal);
Assert.Contains("<redacted>", exception.Message, StringComparison.Ordinal);
Assert.DoesNotContain(password, exception.ToString(), StringComparison.Ordinal);
Assert.DoesNotContain(password, exception.Reply.ProtocolStatus.Message, StringComparison.Ordinal);
Assert.DoesNotContain(password, exception.Reply.DiagnosticMessage, StringComparison.Ordinal);
foreach (MxStatusProxy status in exception.Reply.Statuses)
{
Assert.DoesNotContain(password, status.DiagnosticText, StringComparison.Ordinal);
}
foreach (MxStatusProxy status in exception.Statuses)
{
Assert.DoesNotContain(password, status.DiagnosticText, StringComparison.Ordinal);
}
}
/// <summary>
/// CLI-41: an OK reply that carries neither the typed AuthenticateUser payload nor an
/// int32 return_value is a malformed reply, surfaced as a typed exception rather than an NRE.
/// </summary>
[Fact]
public async Task AuthenticateUserAsync_MissingPayloadAndReturnValue_ThrowsMalformedReply()
{
FakeGatewayTransport transport = CreateTransport();
transport.AddInvokeReply(ReadReplyFixture("authenticate-user.missing-payload.reply.json"));
await using MxGatewayClient client = CreateClient(transport);
MxGatewaySession session = await client.OpenSessionAsync();
await Assert.ThrowsAsync<MxGatewayMalformedReplyException>(
async () => await session.AuthenticateUserAsync(12, "operator", "pw"));
}
/// <summary>
/// CLI-41: an OK reply that omits the typed payload but carries an int32 return_value
/// resolves to that return value.
/// </summary>
[Fact]
public async Task AuthenticateUserAsync_ReturnValueOnly_ResolvesReturnValue()
{
FakeGatewayTransport transport = CreateTransport();
transport.AddInvokeReply(ReadReplyFixture("authenticate-user.return-value-only.reply.json"));
await using MxGatewayClient client = CreateClient(transport);
MxGatewaySession session = await client.OpenSessionAsync();
int userId = await session.AuthenticateUserAsync(12, "operator", "pw");
Assert.Equal(7, userId);
}
/// <summary>
/// CLI-41: the AddBufferedItem fallback shares the malformed-reply contract — an OK reply
/// with neither a typed item handle nor an int32 return_value throws the typed exception.
/// </summary>
[Fact]
public async Task AddBufferedItemAsync_MissingPayloadAndReturnValue_ThrowsMalformedReply()
{
FakeGatewayTransport transport = CreateTransport();
transport.AddInvokeReply(new MxCommandReply
{
SessionId = "session-fixture",
Kind = MxCommandKind.AddBufferedItem,
ProtocolStatus = new ProtocolStatus { Code = ProtocolStatusCode.Ok },
});
await using MxGatewayClient client = CreateClient(transport);
MxGatewaySession session = await client.OpenSessionAsync();
await Assert.ThrowsAsync<MxGatewayMalformedReplyException>(
async () => await session.AddBufferedItemAsync(12, "Area001.Pump001.Speed", "runtime"));
}
private static MxGatewayClient CreateClient(FakeGatewayTransport transport)
{
return new MxGatewayClient(transport.Options, transport);
}
private static FakeGatewayTransport CreateTransport()
{
return new FakeGatewayTransport(new MxGatewayClientOptions
{
Endpoint = new Uri("http://localhost:5000"),
ApiKey = "test-api-key",
});
}
private static MxCommandReply ReadReplyFixture(string fileName)
{
DirectoryInfo directory = new(AppContext.BaseDirectory);
while (directory is not null)
{
string path = Path.Combine(
directory.FullName,
"clients",
"proto",
"fixtures",
"behavior",
"command-replies",
fileName);
if (File.Exists(path))
{
return JsonParser.Default.Parse<MxCommandReply>(File.ReadAllText(path));
}
directory = directory.Parent!;
}
throw new FileNotFoundException(fileName);
}
}
@@ -20,7 +20,8 @@ public sealed class MxStatusProxyExtensionsTests
MxStatusProxy status = JsonParser.Default.Parse<MxStatusProxy>(
testCase.GetProperty("status").GetRawText());
Assert.Equal(status.Category is MxStatusCategory.Ok, status.IsSuccess());
bool wantSuccess = testCase.GetProperty("wantSuccess").GetBoolean();
Assert.Equal(wantSuccess, status.IsSuccess());
Assert.Equal(
testCase.GetProperty("status").GetProperty("rawCategory").GetInt32(),
status.RawCategory);
@@ -0,0 +1,46 @@
using ZB.MOM.WW.MxGateway.Contracts.Proto;
namespace ZB.MOM.WW.MxGateway.Client;
/// <summary>
/// Exception thrown when the gateway returns a protocol-OK reply that carries neither the
/// expected typed payload nor an int32 <c>return_value</c>, so the client cannot resolve the
/// operation result. This replaces the historical <see cref="NullReferenceException"/> that a
/// blind <c>reply.ReturnValue.Int32Value</c> fallback would throw.
/// </summary>
public sealed class MxGatewayMalformedReplyException : MxGatewayException
{
/// <summary>Initializes a new instance with the given message.</summary>
/// <param name="message">The error message describing the malformed reply.</param>
public MxGatewayMalformedReplyException(string message)
: base(message)
{
}
/// <summary>Initializes a new instance with full diagnostic context.</summary>
/// <param name="message">The error message describing the malformed reply.</param>
/// <param name="sessionId">The session ID, if available.</param>
/// <param name="correlationId">The correlation ID for tracing, if available.</param>
/// <param name="protocolStatus">The protocol status details, if available.</param>
/// <param name="hResult">The HResult code, if available.</param>
/// <param name="statuses">The MXAccess statuses, if available.</param>
/// <param name="innerException">The underlying exception, if any.</param>
public MxGatewayMalformedReplyException(
string message,
string? sessionId = null,
string? correlationId = null,
ProtocolStatus? protocolStatus = null,
int? hResult = null,
IReadOnlyList<MxStatusProxy>? statuses = null,
Exception? innerException = null)
: base(
message,
sessionId,
correlationId,
protocolStatus,
hResult,
statuses ?? [],
innerException)
{
}
}
@@ -0,0 +1,229 @@
using ZB.MOM.WW.MxGateway.Contracts.Proto;
namespace ZB.MOM.WW.MxGateway.Client;
/// <summary>
/// Scrubs exact secret substrings out of diagnostic text before it leaves the client on an
/// exception path. MXAccess can echo a submitted credential or secured value back inside a
/// failure diagnostic (protocol message, MXSTATUS_PROXY diagnostic text, HRESULT description);
/// this helper replaces any such verbatim occurrence with <c>&lt;redacted&gt;</c> so the raw
/// request payload never reaches a caught exception's message. The marker matches the Go, Rust,
/// and Java clients.
/// </summary>
internal static class MxGatewaySecretRedaction
{
private const string Marker = "<redacted>";
/// <summary>
/// Replaces every usable secret in <paramref name="secrets"/> with the redaction marker
/// (ordinal comparison). Returns the message unchanged when it is null or empty, or when no
/// usable secret is supplied. A secret that is null, empty, or whitespace-only is ignored so
/// it cannot over-redact ordinary separator characters in the message.
/// </summary>
/// <param name="message">The diagnostic message to scrub.</param>
/// <param name="secrets">The secret values to remove from the message.</param>
/// <returns>The scrubbed message.</returns>
internal static string Redact(string message, params string?[] secrets)
{
if (string.IsNullOrEmpty(message) || secrets is null)
{
return message;
}
string result = message;
foreach (string? secret in secrets)
{
if (!string.IsNullOrWhiteSpace(secret))
{
result = result.Replace(secret, Marker, StringComparison.Ordinal);
}
}
return result;
}
/// <summary>
/// Returns a scrubbed clone of <paramref name="reply"/>: the protocol-status message, the
/// reply-level diagnostic message, and each MXSTATUS_PROXY diagnostic text have every verbatim
/// secret replaced with the redaction marker. The original is left untouched. MXAccess can echo
/// a submitted credential into any of these fields, so a redacted exception must carry the
/// scrubbed reply rather than the secret-bearing original.
/// </summary>
/// <param name="reply">The reply to clone and scrub.</param>
/// <param name="secrets">The secret values to remove.</param>
/// <returns>A scrubbed clone of the reply.</returns>
internal static MxCommandReply RedactReply(MxCommandReply reply, params string?[] secrets)
{
ArgumentNullException.ThrowIfNull(reply);
MxCommandReply clone = reply.Clone();
if (clone.ProtocolStatus is not null)
{
clone.ProtocolStatus.Message = Redact(clone.ProtocolStatus.Message, secrets);
}
clone.DiagnosticMessage = Redact(clone.DiagnosticMessage, secrets);
foreach (MxStatusProxy status in clone.Statuses)
{
status.DiagnosticText = Redact(status.DiagnosticText, secrets);
}
return clone;
}
/// <summary>
/// Returns a scrubbed clone of <paramref name="status"/> (its message with every verbatim
/// secret removed), or <see langword="null"/> when the input is null.
/// </summary>
/// <param name="status">The protocol status to clone and scrub.</param>
/// <param name="secrets">The secret values to remove.</param>
/// <returns>A scrubbed clone, or <see langword="null"/>.</returns>
internal static ProtocolStatus? RedactStatus(ProtocolStatus? status, params string?[] secrets)
{
if (status is null)
{
return null;
}
ProtocolStatus clone = status.Clone();
clone.Message = Redact(clone.Message, secrets);
return clone;
}
/// <summary>
/// Returns a list of scrubbed clones of <paramref name="statuses"/> — each MXSTATUS_PROXY's
/// diagnostic text has every verbatim secret removed. The originals are left untouched.
/// </summary>
/// <param name="statuses">The statuses to clone and scrub.</param>
/// <param name="secrets">The secret values to remove.</param>
/// <returns>A list of scrubbed clones.</returns>
internal static IReadOnlyList<MxStatusProxy> RedactStatuses(
IReadOnlyList<MxStatusProxy> statuses,
params string?[] secrets)
{
if (statuses is null || statuses.Count is 0)
{
return statuses ?? [];
}
MxStatusProxy[] result = new MxStatusProxy[statuses.Count];
for (int i = 0; i < statuses.Count; i++)
{
MxStatusProxy clone = statuses[i].Clone();
clone.DiagnosticText = Redact(clone.DiagnosticText, secrets);
result[i] = clone;
}
return result;
}
/// <summary>
/// Returns an exception equivalent to <paramref name="ex"/> but with any verbatim secret
/// scrubbed from its message. When nothing changes, the original exception is returned
/// unchanged; otherwise a new exception of the same concrete runtime type is built and the
/// original reply/status context is preserved. The secret-bearing original is deliberately
/// <b>not</b> chained as the inner exception — doing so would let its unredacted message
/// re-surface through <see cref="Exception.ToString"/> (which logging frameworks call). The
/// original's own inner cause (a transport error, never the request payload) is carried
/// forward instead.
/// </summary>
/// <param name="ex">The exception to redact.</param>
/// <param name="secrets">The secret values to remove from the message.</param>
/// <returns>The redacted exception, or the original when no change was needed.</returns>
internal static MxGatewayException Redacted(MxGatewayException ex, params string?[] secrets)
{
ArgumentNullException.ThrowIfNull(ex);
string redacted = Redact(ex.Message, secrets);
bool messageChanged = !string.Equals(redacted, ex.Message, StringComparison.Ordinal);
Exception? cause = ex.InnerException;
// MxAccessException derives its structured fields from the raw reply, so scrubbing must
// clone and redact that reply — the message alone changing is not enough, because the reply
// can carry the echoed secret even when the message does not.
if (ex is MxAccessException access)
{
if (!messageChanged && !ReplyContainsSecret(access.Reply, secrets))
{
return ex;
}
return new MxAccessException(redacted, RedactReply(access.Reply, secrets), cause);
}
// Other subtypes carry the secret through ProtocolStatus.Message and Statuses[].DiagnosticText.
if (!messageChanged
&& !ContainsSecret(ex.ProtocolStatus?.Message, secrets)
&& !StatusesContainSecret(ex.Statuses, secrets))
{
return ex;
}
ProtocolStatus? status = RedactStatus(ex.ProtocolStatus, secrets);
IReadOnlyList<MxStatusProxy> statuses = RedactStatuses(ex.Statuses, secrets);
return ex switch
{
MxGatewaySessionException => new MxGatewaySessionException(
redacted, ex.SessionId, ex.CorrelationId, status, ex.HResultCode, statuses, cause),
MxGatewayWorkerException => new MxGatewayWorkerException(
redacted, ex.SessionId, ex.CorrelationId, status, ex.HResultCode, statuses, cause),
MxGatewayAuthenticationException => new MxGatewayAuthenticationException(
redacted, ex.SessionId, ex.CorrelationId, status, ex.HResultCode, statuses, cause),
MxGatewayAuthorizationException => new MxGatewayAuthorizationException(
redacted, ex.SessionId, ex.CorrelationId, status, ex.HResultCode, statuses, cause),
MxGatewayMalformedReplyException => new MxGatewayMalformedReplyException(
redacted, ex.SessionId, ex.CorrelationId, status, ex.HResultCode, statuses, cause),
MxGatewayCommandException => new MxGatewayCommandException(
redacted, ex.SessionId, ex.CorrelationId, status, ex.HResultCode, statuses, cause),
_ => new MxGatewayException(redacted, cause),
};
}
private static bool ContainsSecret(string? text, string?[] secrets)
{
if (string.IsNullOrEmpty(text) || secrets is null)
{
return false;
}
foreach (string? secret in secrets)
{
if (!string.IsNullOrWhiteSpace(secret) && text.Contains(secret, StringComparison.Ordinal))
{
return true;
}
}
return false;
}
private static bool StatusesContainSecret(IReadOnlyList<MxStatusProxy> statuses, string?[] secrets)
{
if (statuses is null)
{
return false;
}
foreach (MxStatusProxy status in statuses)
{
if (ContainsSecret(status.DiagnosticText, secrets))
{
return true;
}
}
return false;
}
private static bool ReplyContainsSecret(MxCommandReply reply, string?[] secrets)
{
if (reply is null)
{
return false;
}
return ContainsSecret(reply.ProtocolStatus?.Message, secrets)
|| ContainsSecret(reply.DiagnosticMessage, secrets)
|| StatusesContainSecret(reply.Statuses, secrets);
}
}
@@ -945,7 +945,7 @@ public sealed class MxGatewaySession : IAsyncDisposable
cancellationToken)
.ConfigureAwait(false);
reply.EnsureProtocolSuccess().EnsureMxAccessSuccess();
return reply.AddBufferedItem?.ItemHandle ?? reply.ReturnValue.Int32Value;
return ResolveInt32Result(reply.AddBufferedItem?.ItemHandle, reply, "AddBufferedItem");
}
/// <summary>
@@ -1141,7 +1141,14 @@ public sealed class MxGatewaySession : IAsyncDisposable
verifierUserId,
cancellationToken)
.ConfigureAwait(false);
reply.EnsureProtocolSuccess().EnsureMxAccessSuccess();
try
{
reply.EnsureProtocolSuccess().EnsureMxAccessSuccess();
}
catch (MxGatewayException ex)
{
throw MxGatewaySecretRedaction.Redacted(ex, ExtractSecretString(value));
}
}
/// <summary>
@@ -1215,7 +1222,14 @@ public sealed class MxGatewaySession : IAsyncDisposable
verifierUserId,
cancellationToken)
.ConfigureAwait(false);
reply.EnsureProtocolSuccess().EnsureMxAccessSuccess();
try
{
reply.EnsureProtocolSuccess().EnsureMxAccessSuccess();
}
catch (MxGatewayException ex)
{
throw MxGatewaySecretRedaction.Redacted(ex, ExtractSecretString(value));
}
}
/// <summary>
@@ -1285,8 +1299,15 @@ public sealed class MxGatewaySession : IAsyncDisposable
verifyUserPassword,
cancellationToken)
.ConfigureAwait(false);
reply.EnsureProtocolSuccess().EnsureMxAccessSuccess();
return reply.AuthenticateUser?.UserId ?? reply.ReturnValue.Int32Value;
try
{
reply.EnsureProtocolSuccess().EnsureMxAccessSuccess();
return ResolveInt32Result(reply.AuthenticateUser?.UserId, reply, "AuthenticateUser");
}
catch (MxGatewayException ex)
{
throw MxGatewaySecretRedaction.Redacted(ex, verifyUserPassword);
}
}
/// <summary>
@@ -1337,7 +1358,7 @@ public sealed class MxGatewaySession : IAsyncDisposable
MxCommandReply reply = await ArchestraUserToIdRawAsync(serverHandle, userIdGuid, cancellationToken)
.ConfigureAwait(false);
reply.EnsureProtocolSuccess().EnsureMxAccessSuccess();
return reply.ArchestraUserToId?.UserId ?? reply.ReturnValue.Int32Value;
return ResolveInt32Result(reply.ArchestraUserToId?.UserId, reply, "ArchestrAUserToId");
}
/// <summary>
@@ -1367,6 +1388,51 @@ public sealed class MxGatewaySession : IAsyncDisposable
cancellationToken);
}
/// <summary>
/// Resolves the int32 result of an OK command reply: the typed payload value when present,
/// otherwise an int32 <c>return_value</c> when the reply carries one. A reply that provides
/// neither is malformed and surfaces as <see cref="MxGatewayMalformedReplyException"/>
/// rather than the historical <see cref="NullReferenceException"/>.
/// </summary>
/// <param name="typedValue">The typed payload value, or <see langword="null"/> when absent.</param>
/// <param name="reply">The OK command reply.</param>
/// <param name="operation">The MXAccess operation name, for the diagnostic message.</param>
/// <returns>The resolved int32 result.</returns>
private static int ResolveInt32Result(int? typedValue, MxCommandReply reply, string operation)
{
if (typedValue.HasValue)
{
return typedValue.Value;
}
if (reply.ReturnValue is not null
&& reply.ReturnValue.KindCase == MxValue.KindOneofCase.Int32Value)
{
return reply.ReturnValue.Int32Value;
}
throw new MxGatewayMalformedReplyException(
$"{operation} returned a malformed reply: OK reply carried neither the typed payload nor an int32 return_value",
reply.SessionId,
reply.CorrelationId,
reply.ProtocolStatus,
reply.HasHresult ? reply.Hresult : null,
reply.Statuses.ToArray());
}
/// <summary>
/// Extracts the raw string form of a credential-bearing <see cref="MxValue"/> for redaction,
/// or <see langword="null"/> when the value does not carry a string.
/// </summary>
/// <param name="value">The value written by a secured write.</param>
/// <returns>The string payload, or <see langword="null"/>.</returns>
private static string? ExtractSecretString(MxValue value)
{
return value.KindCase == MxValue.KindOneofCase.StringValue
? value.StringValue
: null;
}
/// <summary>
/// Invokes an MXAccess command on this session.
/// </summary>
@@ -30,6 +30,6 @@ public static class MxStatusProxyExtensions
? "no diagnostic text"
: status.DiagnosticText;
return $"{status.Category} by {status.DetectedBy}; detail={status.Detail}; {diagnosticText}";
return $"success={status.Success}; {status.Category} by {status.DetectedBy}; detail={status.Detail}; {diagnosticText}";
}
}
+148 -9
View File
@@ -10,7 +10,9 @@ import (
pb "gitea.dohertylan.com/dohertj2/mxaccessgw/clients/go/internal/generated"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
"google.golang.org/grpc/test/bufconn"
)
@@ -200,6 +202,136 @@ func TestEventsSlowConsumerYieldsErrSlowConsumerBeforeClose(t *testing.T) {
}
}
func TestEventsFullBufferTerminalErrorKeepsRootCause(t *testing.T) {
fake := &fakeGatewayServer{
streamStarted: make(chan struct{}),
streamDone: make(chan struct{}),
streamEventCount: eventBufferSize,
streamTerminalErr: status.Error(codes.Internal, "boom"),
}
client, cleanup := newBufconnClient(t, fake)
defer cleanup()
session := NewSessionForID(client, "session-1")
events, err := session.EventsAfter(context.Background(), 0)
if err != nil {
t.Fatalf("EventsAfter() error = %v", err)
}
<-fake.streamStarted
// Do not drain until the stream has fully ended: the server sends exactly
// eventBufferSize events (filling the data slots) and then returns a genuine
// terminal gRPC error. The client must report that error as itself, using the
// reserved slot, rather than mislabeling it as ErrSlowConsumer.
select {
case <-fake.streamDone:
case <-time.After(2 * time.Second):
t.Fatal("event stream did not stop after terminal error")
}
// streamDone fires when the server returns; the client's producer goroutine
// still needs a moment to drain the gRPC stream, fill all data slots, and
// enqueue the terminal result. Let it settle before draining so the buffer is
// genuinely full when the terminal error is processed (which is what makes the
// mislabel bug observable).
time.Sleep(250 * time.Millisecond)
var last EventResult
gotResult := false
for {
select {
case res, ok := <-events:
if !ok {
if !gotResult {
t.Fatal("events channel closed without yielding any result")
}
var gwErr *GatewayError
if !errors.As(last.Err, &gwErr) {
t.Fatalf("final event result err is %T, want *GatewayError", last.Err)
}
if code := status.Code(last.Err); code != codes.Internal {
t.Fatalf("final event result gRPC code = %s, want %s", code, codes.Internal)
}
if errors.Is(last.Err, ErrSlowConsumer) {
t.Fatalf("final event result err = %v, must not be mislabeled as ErrSlowConsumer", last.Err)
}
return
}
last = res
gotResult = true
case <-time.After(2 * time.Second):
t.Fatal("events channel did not close after terminal error")
}
}
}
// TestSubscribeEventsFullBufferDeliversTerminalError is the CLI-44 regression for
// the never-drop Subscribe path. SubscribeEvents/SubscribeEventsAfter use
// cancelWhenResultBufferFull=false, so ordinary sends are blocking and uncapped and
// can fill every slot in the results channel — including the reserved terminal slot.
// A genuine terminal Recv error must still be delivered as the final result, never
// silently dropped. The server sends eventBufferSize+eventBufferReservedSlots events
// (filling every slot) and then returns a genuine gRPC error; with an unconditional
// non-blocking terminal send the error is dropped, so this fails red until the send
// path blocks for the never-drop mode.
func TestSubscribeEventsFullBufferDeliversTerminalError(t *testing.T) {
fake := &fakeGatewayServer{
streamStarted: make(chan struct{}),
streamDone: make(chan struct{}),
streamEventCount: eventBufferSize + eventBufferReservedSlots,
streamTerminalErr: status.Error(codes.Internal, "boom"),
}
client, cleanup := newBufconnClient(t, fake)
defer cleanup()
session := NewSessionForID(client, "session-1")
subscription, err := session.SubscribeEvents(context.Background())
if err != nil {
t.Fatalf("SubscribeEvents() error = %v", err)
}
defer subscription.Close()
<-fake.streamStarted
// Wait for the server to finish sending every event and return the terminal
// error, so the producer goroutine has filled every buffered slot before the
// terminal result is processed. That is what makes the dropped-terminal bug
// observable: with the buffer full, an unconditional non-blocking send discards
// the terminal error.
select {
case <-fake.streamDone:
case <-time.After(2 * time.Second):
t.Fatal("event stream did not stop after terminal error")
}
time.Sleep(250 * time.Millisecond)
// Drain fully. Every data event, then the terminal gRPC error as the final
// result, must arrive; the channel must not close without yielding it.
events := subscription.Events()
var last EventResult
gotResult := false
for {
select {
case res, ok := <-events:
if !ok {
if !gotResult {
t.Fatal("events channel closed without yielding any result")
}
var gwErr *GatewayError
if !errors.As(last.Err, &gwErr) {
t.Fatalf("final event result err is %T (%v), want the terminal *GatewayError; it was dropped", last.Err, last.Err)
}
if code := status.Code(last.Err); code != codes.Internal {
t.Fatalf("final event result gRPC code = %s, want %s", code, codes.Internal)
}
return
}
last = res
gotResult = true
case <-time.After(2 * time.Second):
t.Fatal("events channel did not close after terminal error")
}
}
}
func TestEventsSurfacesReplayGapSentinelAsTypedSignal(t *testing.T) {
fake := &fakeGatewayServer{
streamStarted: make(chan struct{}),
@@ -694,15 +826,16 @@ func newBufconnClient(t *testing.T, fake *fakeGatewayServer) (*Client, func()) {
type fakeGatewayServer struct {
pb.UnimplementedMxAccessGatewayServer
openReply *pb.OpenSessionReply
openAuth string
streamAuth string
streamStarted chan struct{}
streamDone chan struct{}
streamEventCount int
streamReplayGap *pb.ReplayGap
invokeReply *pb.MxCommandReply
invokeRequest *pb.MxCommandRequest
openReply *pb.OpenSessionReply
openAuth string
streamAuth string
streamStarted chan struct{}
streamDone chan struct{}
streamEventCount int
streamReplayGap *pb.ReplayGap
streamTerminalErr error
invokeReply *pb.MxCommandReply
invokeRequest *pb.MxCommandRequest
}
func (s *fakeGatewayServer) OpenSession(ctx context.Context, req *pb.OpenSessionRequest) (*pb.OpenSessionReply, error) {
@@ -772,6 +905,12 @@ func (s *fakeGatewayServer) StreamEvents(req *pb.StreamEventsRequest, stream grp
return err
}
}
if s.streamTerminalErr != nil {
// Return a genuine terminal stream error immediately after sending the
// events, without waiting on the client to cancel. This exercises the
// Recv-error path while the client's result buffer is still full.
return s.streamTerminalErr
}
<-stream.Context().Done()
return io.EOF
}
@@ -0,0 +1,197 @@
package mxgateway
import (
"context"
"errors"
"os"
"path/filepath"
"strings"
"testing"
pb "gitea.dohertylan.com/dohertj2/mxaccessgw/clients/go/internal/generated"
"google.golang.org/protobuf/encoding/protojson"
)
// loadCommandReplyFixture parses a shared command-reply fixture into an
// MxCommandReply so the Go client can be driven through the same wire shapes the
// other language clients exercise.
func loadCommandReplyFixture(t *testing.T, name string) *pb.MxCommandReply {
t.Helper()
path := filepath.Join("..", "..", "proto", "fixtures", "behavior", "command-replies", name)
data, err := os.ReadFile(path)
if err != nil {
t.Fatalf("read fixture %s: %v", name, err)
}
var reply pb.MxCommandReply
if err := protojson.Unmarshal(data, &reply); err != nil {
t.Fatalf("parse fixture %s: %v", name, err)
}
return &reply
}
func TestAuthenticateUserMissingPayloadReturnsMalformedReplyError(t *testing.T) {
fake := &fakeGatewayServer{
invokeReply: loadCommandReplyFixture(t, "authenticate-user.missing-payload.reply.json"),
}
client, cleanup := newBufconnClient(t, fake)
defer cleanup()
session := NewSessionForID(client, "session-1")
_, err := session.AuthenticateUser(context.Background(), 12, "operator", "secret")
var malformed *MalformedReplyError
if !errors.As(err, &malformed) {
t.Fatalf("AuthenticateUser() error = %v (%T), want *MalformedReplyError", err, err)
}
if malformed.Op != "authenticate user" {
t.Fatalf("MalformedReplyError.Op = %q, want %q", malformed.Op, "authenticate user")
}
}
func TestAuthenticateUserReturnValueOnlyUsesInt32ReturnValue(t *testing.T) {
fake := &fakeGatewayServer{
invokeReply: loadCommandReplyFixture(t, "authenticate-user.return-value-only.reply.json"),
}
client, cleanup := newBufconnClient(t, fake)
defer cleanup()
session := NewSessionForID(client, "session-1")
userID, err := session.AuthenticateUser(context.Background(), 12, "operator", "secret")
if err != nil {
t.Fatalf("AuthenticateUser() error = %v", err)
}
if userID != 7 {
t.Fatalf("AuthenticateUser() = %d, want 7", userID)
}
}
// AddBufferedItem shares the prefer-payload / int32-return-value / malformed
// fallback code path; cover both branches for one of the siblings.
func TestAddBufferedItemFallbackHonoursReturnValueAndReportsMalformed(t *testing.T) {
t.Run("return-value-only", func(t *testing.T) {
fake := &fakeGatewayServer{
invokeReply: loadCommandReplyFixture(t, "authenticate-user.return-value-only.reply.json"),
}
client, cleanup := newBufconnClient(t, fake)
defer cleanup()
session := NewSessionForID(client, "session-1")
itemHandle, err := session.AddBufferedItem(context.Background(), 12, "Area001.Pump001.Speed", "runtime")
if err != nil {
t.Fatalf("AddBufferedItem() error = %v", err)
}
if itemHandle != 7 {
t.Fatalf("AddBufferedItem() = %d, want 7", itemHandle)
}
})
t.Run("missing-payload", func(t *testing.T) {
fake := &fakeGatewayServer{
invokeReply: loadCommandReplyFixture(t, "authenticate-user.missing-payload.reply.json"),
}
client, cleanup := newBufconnClient(t, fake)
defer cleanup()
session := NewSessionForID(client, "session-1")
_, err := session.AddBufferedItem(context.Background(), 12, "Area001.Pump001.Speed", "runtime")
var malformed *MalformedReplyError
if !errors.As(err, &malformed) {
t.Fatalf("AddBufferedItem() error = %v (%T), want *MalformedReplyError", err, err)
}
if malformed.Op != "add buffered item" {
t.Fatalf("MalformedReplyError.Op = %q, want %q", malformed.Op, "add buffered item")
}
})
}
// TestAuthenticateUserScrubsEchoedCredentialFromError is the CLI-40 regression:
// a gateway diagnostic that echoes the raw credential back must never reach the
// caller's surfaced error text.
func TestAuthenticateUserScrubsEchoedCredentialFromError(t *testing.T) {
const credential = "sup3rSecretVerify9f3a2b"
fake := &fakeGatewayServer{
invokeReply: loadCommandReplyFixture(t, "authenticate-user.echoed-credential.reply.json"),
}
client, cleanup := newBufconnClient(t, fake)
defer cleanup()
session := NewSessionForID(client, "session-1")
_, err := session.AuthenticateUser(context.Background(), 12, "operator", credential)
if err == nil {
t.Fatal("AuthenticateUser() error = nil, want an MXAccess failure")
}
message := err.Error()
if strings.Contains(message, credential) {
t.Fatalf("surfaced error leaked the credential: %q", message)
}
if !strings.Contains(message, "<redacted>") {
t.Fatalf("surfaced error missing redaction marker: %q", message)
}
}
// TestAuthenticateUserScrubsEchoedCredentialFromStructuredReply is the CLI-40
// follow-up: redacting only the rendered Error() string is not enough. The typed
// *MxAccessError still carries the raw command reply, whose ProtocolStatus.Message,
// DiagnosticMessage, and Statuses[].DiagnosticText echo the credential verbatim. A
// logger dumping structured fields would reintroduce the leak, so the reply the
// typed error carries must be a scrubbed clone. Both the OK+negative-HRESULT and the
// MXACCESS_FAILURE fixtures route to *MxAccessError (via EnsureProtocolSuccess), so
// both must be scrubbed identically.
func TestAuthenticateUserScrubsEchoedCredentialFromStructuredReply(t *testing.T) {
const credential = "sup3rSecretVerify9f3a2b"
fixtures := []string{
"authenticate-user.echoed-credential.reply.json",
"authenticate-user.echoed-credential-mxaccess-failure.reply.json",
}
for _, fixture := range fixtures {
t.Run(fixture, func(t *testing.T) {
fake := &fakeGatewayServer{
invokeReply: loadCommandReplyFixture(t, fixture),
}
client, cleanup := newBufconnClient(t, fake)
defer cleanup()
session := NewSessionForID(client, "session-1")
_, err := session.AuthenticateUser(context.Background(), 12, "operator", credential)
if err == nil {
t.Fatal("AuthenticateUser() error = nil, want an MXAccess failure")
}
var mxErr *MxAccessError
if !errors.As(err, &mxErr) {
t.Fatalf("AuthenticateUser() error = %v (%T), want *MxAccessError", err, err)
}
reply := mxErr.Reply
if reply == nil {
t.Fatal("MxAccessError.Reply is nil, want the scrubbed command reply")
}
if got := reply.GetProtocolStatus().GetMessage(); strings.Contains(got, credential) {
t.Fatalf("MxAccessError.Reply.ProtocolStatus.Message leaked the credential: %q", got)
}
if got := reply.GetDiagnosticMessage(); strings.Contains(got, credential) {
t.Fatalf("MxAccessError.Reply.DiagnosticMessage leaked the credential: %q", got)
}
for i, status := range reply.GetStatuses() {
if got := status.GetDiagnosticText(); strings.Contains(got, credential) {
t.Fatalf("MxAccessError.Reply.Statuses[%d].DiagnosticText leaked the credential: %q", i, got)
}
}
// The wrapped CommandError's status/reply must be scrubbed too.
if mxErr.Command != nil {
if got := mxErr.Command.Status.GetMessage(); strings.Contains(got, credential) {
t.Fatalf("MxAccessError.Command.Status.Message leaked the credential: %q", got)
}
if cmdReply := mxErr.Command.Reply; cmdReply != nil {
if got := cmdReply.GetDiagnosticMessage(); strings.Contains(got, credential) {
t.Fatalf("MxAccessError.Command.Reply.DiagnosticMessage leaked the credential: %q", got)
}
}
}
if got := err.Error(); strings.Contains(got, credential) {
t.Fatalf("rendered error leaked the credential: %q", got)
}
})
}
}
+5 -5
View File
@@ -51,8 +51,9 @@ func TestStatusConversionFixtures(t *testing.T) {
var fixture struct {
Cases []struct {
ID string `json:"id"`
Status json.RawMessage `json:"status"`
ID string `json:"id"`
WantSuccess bool `json:"wantSuccess"`
Status json.RawMessage `json:"status"`
} `json:"cases"`
}
if err := json.Unmarshal(data, &fixture); err != nil {
@@ -65,9 +66,8 @@ func TestStatusConversionFixtures(t *testing.T) {
if err := protojson.Unmarshal(tc.Status, &status); err != nil {
t.Fatalf("parse status: %v", err)
}
want := status.GetCategory() == pb.MxStatusCategory_MX_STATUS_CATEGORY_OK
if got := StatusSucceeded(&status); got != want {
t.Fatalf("StatusSucceeded() = %v, want %v", got, want)
if got := StatusSucceeded(&status); got != tc.WantSuccess {
t.Fatalf("StatusSucceeded() = %v, want %v", got, tc.WantSuccess)
}
})
}
+114 -6
View File
@@ -6,6 +6,7 @@ import (
"strings"
pb "gitea.dohertylan.com/dohertj2/mxaccessgw/clients/go/internal/generated"
"google.golang.org/protobuf/proto"
)
// redactedSecretMarker is the placeholder substituted for credential material in
@@ -49,20 +50,108 @@ func (e *secretRedactingError) Unwrap() error {
return e.err
}
// redactSecrets wraps err so any occurrence of a non-empty secret in the surfaced
// message is redacted, while errors.As / errors.Is still reach the wrapped typed
// error. It returns nil unchanged and skips wrapping when no non-empty secret is
// supplied, so non-secret-bearing calls keep their original error verbatim.
// scrubReplyStrings returns a clone of reply with every non-empty secret replaced
// by redactedSecretMarker in the free-text fields a gateway diagnostic could echo a
// credential into: ProtocolStatus.Message, DiagnosticMessage, and each
// Statuses[].DiagnosticText. It clones with proto.Clone so the caller's original
// reply is never mutated. A nil reply, or an empty/whitespace-only secret set, is a
// no-op (nil in, nil out; a clone otherwise).
func scrubReplyStrings(reply *pb.MxCommandReply, secrets []string) *pb.MxCommandReply {
if reply == nil {
return nil
}
clone, ok := proto.Clone(reply).(*pb.MxCommandReply)
if !ok {
return reply
}
for _, secret := range secrets {
if secret == "" {
continue
}
if clone.GetProtocolStatus() != nil {
clone.ProtocolStatus.Message = strings.ReplaceAll(clone.GetProtocolStatus().GetMessage(), secret, redactedSecretMarker)
}
clone.DiagnosticMessage = strings.ReplaceAll(clone.GetDiagnosticMessage(), secret, redactedSecretMarker)
for _, status := range clone.GetStatuses() {
status.DiagnosticText = strings.ReplaceAll(status.GetDiagnosticText(), secret, redactedSecretMarker)
}
}
return clone
}
// scrubProtocolStatusMessage returns a clone of status with every non-empty secret
// redacted from its Message, leaving the original untouched.
func scrubProtocolStatusMessage(status *ProtocolStatus, secrets []string) *ProtocolStatus {
if status == nil {
return nil
}
clone, ok := proto.Clone(status).(*ProtocolStatus)
if !ok {
return status
}
for _, secret := range secrets {
if secret != "" {
clone.Message = strings.ReplaceAll(clone.GetMessage(), secret, redactedSecretMarker)
}
}
return clone
}
// redactSecrets scrubs a non-empty secret set from the error it surfaces. When the
// wrapped error is a typed *MxAccessError or *CommandError it is rebuilt carrying
// scrubbed clones of its reply and protocol status, so a caller logging the typed
// error's structured fields cannot reintroduce the credential the rendered message
// hides. The rebuilt (or original, for other error types) value is then wrapped in
// secretRedactingError as a belt-and-suspenders scrub of any remaining rendered
// text. errors.As / errors.Is still reach the typed error through the wrapper. It
// returns nil unchanged and skips all work when no non-empty secret is supplied, so
// non-secret-bearing calls keep their original error verbatim.
func redactSecrets(err error, secrets ...string) error {
if err == nil {
return nil
}
hasSecret := false
for _, secret := range secrets {
if secret != "" {
return &secretRedactingError{err: err, secrets: secrets}
hasSecret = true
break
}
}
return err
if !hasSecret {
return err
}
rebuilt := rebuildScrubbedError(err, secrets)
return &secretRedactingError{err: rebuilt, secrets: secrets}
}
// rebuildScrubbedError rebuilds the typed error carrying scrubbed clones of any
// command reply / protocol status it holds, so credential text never survives in the
// error's structured fields. Non-reply-bearing error types are returned unchanged.
func rebuildScrubbedError(err error, secrets []string) error {
switch typed := err.(type) {
case *MxAccessError:
return &MxAccessError{
Command: scrubCommandError(typed.Command, secrets),
Reply: scrubReplyStrings(typed.Reply, secrets),
}
case *CommandError:
return scrubCommandError(typed, secrets)
default:
return err
}
}
// scrubCommandError rebuilds a CommandError with a scrubbed Status and Reply.
func scrubCommandError(cmd *CommandError, secrets []string) *CommandError {
if cmd == nil {
return nil
}
return &CommandError{
Op: cmd.Op,
Status: scrubProtocolStatusMessage(cmd.Status, secrets),
Reply: scrubReplyStrings(cmd.Reply, secrets),
}
}
// ErrSlowConsumer is the terminal error sent on the Events/EventsAfter
@@ -72,6 +161,25 @@ func redactSecrets(err error, secrets ...string) error {
// dropping events. Match it with errors.Is.
var ErrSlowConsumer = errors.New("mxgateway: event consumer fell behind; stream terminated")
// MalformedReplyError reports an OK command reply that carried neither the
// typed payload the operation expected nor a usable int32 return_value, so the
// client cannot produce a result. It gives every affected helper one uniform,
// inspectable failure instead of silently returning a zero value.
type MalformedReplyError struct {
// Op names the operation whose reply was malformed.
Op string
// Detail explains what the reply was missing.
Detail string
}
// Error returns the formatted malformed-reply message.
func (e *MalformedReplyError) Error() string {
if e == nil {
return ""
}
return fmt.Sprintf("mxgateway: %s returned a malformed reply: %s", e.Op, e.Detail)
}
// GatewayError wraps transport-level gRPC failures.
type GatewayError struct {
// Op names the operation that failed (for example "dial" or "invoke").
@@ -0,0 +1,115 @@
package mxgateway
import (
"errors"
"strings"
"testing"
pb "gitea.dohertylan.com/dohertj2/mxaccessgw/clients/go/internal/generated"
)
// TestScrubReplyStringsRedactsEveryOccurrence covers the multi-occurrence case:
// one secret appearing across ProtocolStatus.Message, DiagnosticMessage, and every
// Statuses[].DiagnosticText must be fully redacted with no residue.
func TestScrubReplyStringsRedactsEveryOccurrence(t *testing.T) {
const secret = "hunter2"
reply := &pb.MxCommandReply{
ProtocolStatus: &pb.ProtocolStatus{Message: "rejected hunter2 then hunter2 again"},
DiagnosticMessage: "echoed hunter2 back",
Statuses: []*pb.MxStatusProxy{
{DiagnosticText: "first hunter2"},
{DiagnosticText: "second hunter2 and hunter2"},
},
}
scrubbed := scrubReplyStrings(reply, []string{secret})
if strings.Contains(scrubbed.GetProtocolStatus().GetMessage(), secret) {
t.Fatalf("ProtocolStatus.Message still contains the secret: %q", scrubbed.GetProtocolStatus().GetMessage())
}
if strings.Contains(scrubbed.GetDiagnosticMessage(), secret) {
t.Fatalf("DiagnosticMessage still contains the secret: %q", scrubbed.GetDiagnosticMessage())
}
for i, status := range scrubbed.GetStatuses() {
if strings.Contains(status.GetDiagnosticText(), secret) {
t.Fatalf("Statuses[%d].DiagnosticText still contains the secret: %q", i, status.GetDiagnosticText())
}
}
if !strings.Contains(scrubbed.GetProtocolStatus().GetMessage(), redactedSecretMarker) {
t.Fatalf("ProtocolStatus.Message missing redaction marker: %q", scrubbed.GetProtocolStatus().GetMessage())
}
// The original reply must be untouched (scrubReplyStrings clones).
if !strings.Contains(reply.GetDiagnosticMessage(), secret) {
t.Fatal("scrubReplyStrings mutated the original reply instead of cloning it")
}
}
// TestScrubReplyStringsRedactsOverlappingSecrets covers two secrets where one is a
// substring of the other: both must be fully redacted, with no partial leak of the
// longer secret's non-shared remainder.
func TestScrubReplyStringsRedactsOverlappingSecrets(t *testing.T) {
const shortSecret = "pass"
const longSecret = "password123"
reply := &pb.MxCommandReply{
DiagnosticMessage: "value was password123 and also pass",
}
scrubbed := scrubReplyStrings(reply, []string{longSecret, shortSecret})
got := scrubbed.GetDiagnosticMessage()
if strings.Contains(got, shortSecret) {
t.Fatalf("scrubbed message still contains a secret substring %q: %q", shortSecret, got)
}
if strings.Contains(got, longSecret) {
t.Fatalf("scrubbed message still contains %q: %q", longSecret, got)
}
// "123" is the longer secret's remainder past the shared "pass" prefix; it must
// not survive as a partial leak.
if strings.Contains(got, "123") {
t.Fatalf("scrubbed message leaked the longer secret's remainder: %q", got)
}
}
// TestRedactSecretsEmptyOrNilLeavesErrorUnchanged confirms the no-secret paths keep
// the original typed error verbatim (no wrapping, no scrubbed clone).
func TestRedactSecretsEmptyOrNilLeavesErrorUnchanged(t *testing.T) {
base := &MxAccessError{Reply: &pb.MxCommandReply{DiagnosticMessage: "boom"}}
if got := redactSecrets(base); got != error(base) {
t.Fatalf("redactSecrets with no secrets = %v, want the original error unchanged", got)
}
if got := redactSecrets(base, ""); got != error(base) {
t.Fatalf("redactSecrets with only an empty secret = %v, want the original error unchanged", got)
}
if got := redactSecrets(nil, "secret"); got != nil {
t.Fatalf("redactSecrets(nil, ...) = %v, want nil", got)
}
}
// TestRedactSecretsRebuildsTypedCommandError confirms a *CommandError (non-MXAccess
// path) is rebuilt with a scrubbed Status and Reply, and errors.As still reaches it.
func TestRedactSecretsRebuildsTypedCommandError(t *testing.T) {
const secret = "topSecretValue"
base := &CommandError{
Op: "write secured",
Status: &pb.ProtocolStatus{Message: "rejected topSecretValue"},
Reply: &pb.MxCommandReply{DiagnosticMessage: "echoed topSecretValue"},
}
redacted := redactSecrets(base, secret)
var cmdErr *CommandError
if !errors.As(redacted, &cmdErr) {
t.Fatalf("redactSecrets result %T does not unwrap to *CommandError", redacted)
}
if strings.Contains(cmdErr.Status.GetMessage(), secret) {
t.Fatalf("CommandError.Status.Message leaked the secret: %q", cmdErr.Status.GetMessage())
}
if strings.Contains(cmdErr.Reply.GetDiagnosticMessage(), secret) {
t.Fatalf("CommandError.Reply.DiagnosticMessage leaked the secret: %q", cmdErr.Reply.GetDiagnosticMessage())
}
if strings.Contains(redacted.Error(), secret) {
t.Fatalf("rendered error leaked the secret: %q", redacted.Error())
}
}
+64 -14
View File
@@ -812,7 +812,13 @@ func (s *Session) AuthenticateUser(ctx context.Context, serverHandle int32, veri
if reply.GetAuthenticateUser() != nil {
return reply.GetAuthenticateUser().GetUserId(), nil
}
return reply.GetReturnValue().GetInt32Value(), nil
if x, ok := reply.GetReturnValue().GetKind().(*pb.MxValue_Int32Value); ok {
return x.Int32Value, nil
}
return 0, &MalformedReplyError{
Op: "authenticate user",
Detail: "reply carried neither an AuthenticateUser payload nor an int32 return_value",
}
}
// AuthenticateUserRaw invokes MXAccess AuthenticateUser and returns the raw
@@ -847,7 +853,13 @@ func (s *Session) ArchestrAUserToId(ctx context.Context, serverHandle int32, use
if reply.GetArchestraUserToId() != nil {
return reply.GetArchestraUserToId().GetUserId(), nil
}
return reply.GetReturnValue().GetInt32Value(), nil
if x, ok := reply.GetReturnValue().GetKind().(*pb.MxValue_Int32Value); ok {
return x.Int32Value, nil
}
return 0, &MalformedReplyError{
Op: "archestra user to id",
Detail: "reply carried neither an ArchestrAUserToId payload nor an int32 return_value",
}
}
// ArchestrAUserToIdRaw invokes MXAccess ArchestrAUserToId and returns the raw reply.
@@ -876,7 +888,13 @@ func (s *Session) AddBufferedItem(ctx context.Context, serverHandle int32, itemD
if reply.GetAddBufferedItem() != nil {
return reply.GetAddBufferedItem().GetItemHandle(), nil
}
return reply.GetReturnValue().GetInt32Value(), nil
if x, ok := reply.GetReturnValue().GetKind().(*pb.MxValue_Int32Value); ok {
return x.Int32Value, nil
}
return 0, &MalformedReplyError{
Op: "add buffered item",
Detail: "reply carried neither an AddBufferedItem payload nor an int32 return_value",
}
}
// AddBufferedItemRaw invokes MXAccess AddBufferedItem and returns the raw reply.
@@ -981,10 +999,12 @@ func stringSecrets(values ...*MxValue) []string {
// context cancellation stops Recv, or a terminal error is sent.
//
// The returned channel is buffered. If the consumer falls behind and the buffer
// overflows, the stream is terminated and a final EventResult carrying a
// GatewayError that wraps ErrSlowConsumer is delivered before the channel
// closes. Callers must match it with errors.Is(res.Err, ErrSlowConsumer) to
// distinguish a slow-consumer drop from a graceful server end. Use
// overflows with data, the stream is terminated and a final EventResult carrying
// a GatewayError that wraps ErrSlowConsumer is delivered before the channel
// closes; match it with errors.Is(res.Err, ErrSlowConsumer) to distinguish a
// slow-consumer drop from a graceful server end. A genuine stream error is
// reported as itself even under overflow — it is never relabeled as
// ErrSlowConsumer, so the underlying gRPC status stays inspectable. Use
// SubscribeEvents for a blocking, backpressured stream that never drops.
func (s *Session) Events(ctx context.Context) (<-chan EventResult, error) {
return s.EventsAfter(ctx, 0)
@@ -994,7 +1014,9 @@ func (s *Session) Events(ctx context.Context) (<-chan EventResult, error) {
//
// Like Events, the returned channel is buffered and terminates with a final
// EventResult wrapping ErrSlowConsumer (matchable via errors.Is) if the consumer
// falls behind and the buffer overflows, rather than silently closing.
// falls behind and the buffer overflows with data, rather than silently closing.
// A genuine stream error is reported as itself even under overflow, never
// relabeled as ErrSlowConsumer.
func (s *Session) EventsAfter(ctx context.Context, afterWorkerSequence uint64) (<-chan EventResult, error) {
subscription, err := s.subscribeEventsAfter(ctx, afterWorkerSequence, true)
if err != nil {
@@ -1048,12 +1070,11 @@ func (s *Session) subscribeEventsAfter(ctx context.Context, afterWorkerSequence
if err == io.EOF || status.Code(err) == codes.Canceled || streamCtx.Err() != nil {
return
}
sendEventResult(
streamCtx,
results,
EventResult{Err: &GatewayError{Op: "stream events", Err: err}},
cancelWhenResultBufferFull,
cancel)
// A genuine terminal stream error must be reported as itself, even
// when the data slots are full. Routing it through sendEventResult
// would let the overflow branch substitute ErrSlowConsumer and lose
// the real gRPC status, so send it directly, bypassing that branch.
sendTerminalEventResult(streamCtx, results, EventResult{Err: &GatewayError{Op: "stream events", Err: err}}, cancelWhenResultBufferFull)
return
}
}()
@@ -1072,6 +1093,35 @@ func ensureBulkSize(name string, length int) error {
return nil
}
// sendTerminalEventResult enqueues a terminal EventResult, bypassing
// sendEventResult's overflow branch so a genuine stream error is reported verbatim
// rather than relabeled as ErrSlowConsumer. How it sends depends on the mode:
//
// - cancelWhenBufferFull=true (Events/EventsAfter): ordinary data sends are capped
// at eventBufferSize, leaving eventBufferReservedSlots free, so a non-blocking
// send always lands the terminal result. Because this goroutine is the sole
// producer, at most one terminal send ever races for the reserved slot, so the
// select default only fires when the reserve is already spent — never dropping a
// first terminal error.
// - cancelWhenBufferFull=false (SubscribeEvents/SubscribeEventsAfter, never-drop):
// ordinary data sends are uncapped and blocking, so every slot including the
// reserve can hold data. A non-blocking send would then hit the full buffer and
// silently drop the terminal error, breaking the never-drop contract; instead
// block until the consumer drains a slot (or the stream context is cancelled).
func sendTerminalEventResult(ctx context.Context, results chan<- EventResult, result EventResult, cancelWhenBufferFull bool) {
if cancelWhenBufferFull {
select {
case results <- result:
default:
}
return
}
select {
case results <- result:
case <-ctx.Done():
}
}
func sendEventResult(
ctx context.Context,
results chan<- EventResult,
@@ -29,4 +29,18 @@ public final class MxAccessException extends MxGatewayCommandException {
public MxAccessException(String operation, MxCommandReply reply) {
super(operation, reply == null ? null : reply.getProtocolStatus(), reply);
}
/**
* Creates a new MXAccess exception with an already-built, verbatim message.
* Used to re-surface an MXAccess failure with a redacted message while
* preserving the original protocol status and reply.
*
* @param message the exact message to surface (already formatted/redacted)
* @param protocolStatus protocol status reported by the gateway
* @param reply raw command reply containing the MXAccess failure detail
* @param cause underlying error, or {@code null}
*/
public MxAccessException(String message, ProtocolStatus protocolStatus, MxCommandReply reply, Throwable cause) {
super(message, protocolStatus, reply, cause);
}
}
@@ -25,6 +25,23 @@ public class MxGatewayCommandException extends MxGatewayException {
this.reply = reply;
}
/**
* Creates a new command exception with an already-built, verbatim message.
* Used to re-surface a failure with a redacted message while preserving the
* original protocol status and reply.
*
* @param message the exact message to surface (already formatted/redacted)
* @param protocolStatus protocol status returned by the gateway
* @param reply raw command reply, or {@code null} when none was produced
* @param cause underlying error, or {@code null}
*/
protected MxGatewayCommandException(
String message, ProtocolStatus protocolStatus, MxCommandReply reply, Throwable cause) {
super(message, cause);
this.protocolStatus = protocolStatus;
this.reply = reply;
}
/**
* Returns the gateway protocol status that triggered this exception.
*
@@ -0,0 +1,32 @@
package com.zb.mom.ww.mxgateway.client;
/**
* Thrown when the gateway returns a protocol-OK command reply that carries
* neither the expected typed payload nor a usable {@code return_value}.
*
* <p>A successful reply for a value-returning command (for example
* {@code AuthenticateUser}, {@code ArchestrAUserToId}, or {@code AddBufferedItem})
* must supply either the command's typed payload or an int32 {@code return_value}.
* A reply that satisfies neither is malformed, and the client surfaces this
* distinct failure rather than silently returning a default {@code 0}.
*/
public final class MxGatewayMalformedReplyException extends MxGatewayException {
/**
* Creates a new malformed-reply exception with the supplied message.
*
* @param message human-readable description of the malformed reply
*/
public MxGatewayMalformedReplyException(String message) {
super(message);
}
/**
* Creates a new malformed-reply exception with the supplied message and cause.
*
* @param message human-readable description of the malformed reply
* @param cause underlying error that triggered the failure
*/
public MxGatewayMalformedReplyException(String message, Throwable cause) {
super(message, cause);
}
}
@@ -54,4 +54,34 @@ public final class MxGatewaySecrets {
}
return String.join(" ", parts);
}
/**
* Replaces every occurrence of each supplied secret with the redaction
* marker {@code "<redacted>"}. Unlike {@link #redactCredentials(String)},
* which scrubs by pattern, this performs an exact-substring scrub of the
* caller-known secrets used to strip a credential the gateway echoed back
* into a free-form failure message.
*
* @param message the message to scrub, may be {@code null}
* @param secrets the exact secret substrings to remove; {@code null}, empty,
* and blank (whitespace-only) entries and a {@code null} array are ignored
* @return {@code message} unchanged when it is {@code null} or no non-blank
* secret is supplied, otherwise the message with every secret occurrence
* replaced by {@code "<redacted>"}
*/
public static String redactExact(String message, String... secrets) {
if (message == null || secrets == null) {
return message;
}
String result = message;
for (String secret : secrets) {
if (secret == null || secret.isBlank()) {
// A blank "secret" would over-redact real whitespace; skip it.
continue;
}
result = result.replace(secret, "<redacted>");
}
return result;
}
}
@@ -31,6 +31,7 @@ import mxaccess_gateway.v1.MxaccessGateway.MxSparseElement;
import mxaccess_gateway.v1.MxaccessGateway.MxStatusProxy;
import mxaccess_gateway.v1.MxaccessGateway.MxValue;
import mxaccess_gateway.v1.MxaccessGateway.OpenSessionReply;
import mxaccess_gateway.v1.MxaccessGateway.ProtocolStatus;
import mxaccess_gateway.v1.MxaccessGateway.ReadBulkCommand;
import mxaccess_gateway.v1.MxaccessGateway.RegisterCommand;
import mxaccess_gateway.v1.MxaccessGateway.RemoveItemBulkCommand;
@@ -782,15 +783,17 @@ public final class MxGatewaySession implements AutoCloseable {
*/
public MxCommandReply writeSecuredRaw(
int serverHandle, int itemHandle, int currentUserId, int verifierUserId, MxValue value) {
return invokeCommand(MxCommand.newBuilder()
.setKind(MxCommandKind.MX_COMMAND_KIND_WRITE_SECURED)
.setWriteSecured(WriteSecuredCommand.newBuilder()
.setServerHandle(serverHandle)
.setItemHandle(itemHandle)
.setCurrentUserId(currentUserId)
.setVerifierUserId(verifierUserId)
.setValue(value))
.build());
return invokeCommandRedacted(
MxCommand.newBuilder()
.setKind(MxCommandKind.MX_COMMAND_KIND_WRITE_SECURED)
.setWriteSecured(WriteSecuredCommand.newBuilder()
.setServerHandle(serverHandle)
.setItemHandle(itemHandle)
.setCurrentUserId(currentUserId)
.setVerifierUserId(verifierUserId)
.setValue(value))
.build(),
secretStringOf(value));
}
/**
@@ -837,16 +840,18 @@ public final class MxGatewaySession implements AutoCloseable {
int verifierUserId,
MxValue value,
MxValue timestampValue) {
return invokeCommand(MxCommand.newBuilder()
.setKind(MxCommandKind.MX_COMMAND_KIND_WRITE_SECURED2)
.setWriteSecured2(WriteSecured2Command.newBuilder()
.setServerHandle(serverHandle)
.setItemHandle(itemHandle)
.setCurrentUserId(currentUserId)
.setVerifierUserId(verifierUserId)
.setValue(value)
.setTimestampValue(timestampValue))
.build());
return invokeCommandRedacted(
MxCommand.newBuilder()
.setKind(MxCommandKind.MX_COMMAND_KIND_WRITE_SECURED2)
.setWriteSecured2(WriteSecured2Command.newBuilder()
.setServerHandle(serverHandle)
.setItemHandle(itemHandle)
.setCurrentUserId(currentUserId)
.setVerifierUserId(verifierUserId)
.setValue(value)
.setTimestampValue(timestampValue))
.build(),
secretStringOf(value));
}
/**
@@ -866,17 +871,24 @@ public final class MxGatewaySession implements AutoCloseable {
* @throws MxAccessException when MXAccess rejects the credential
*/
public int authenticateUser(int serverHandle, String verifyUser, String verifyUserPassword) {
MxCommandReply reply = invokeCommand(MxCommand.newBuilder()
.setKind(MxCommandKind.MX_COMMAND_KIND_AUTHENTICATE_USER)
.setAuthenticateUser(AuthenticateUserCommand.newBuilder()
.setServerHandle(serverHandle)
.setVerifyUser(verifyUser)
.setVerifyUserPassword(verifyUserPassword))
.build());
MxCommandReply reply = invokeCommandRedacted(
MxCommand.newBuilder()
.setKind(MxCommandKind.MX_COMMAND_KIND_AUTHENTICATE_USER)
.setAuthenticateUser(AuthenticateUserCommand.newBuilder()
.setServerHandle(serverHandle)
.setVerifyUser(verifyUser)
.setVerifyUserPassword(verifyUserPassword))
.build(),
verifyUserPassword);
if (reply.hasAuthenticateUser()) {
return reply.getAuthenticateUser().getUserId();
}
return reply.getReturnValue().getInt32Value();
if (reply.hasReturnValue() && reply.getReturnValue().getKindCase() == MxValue.KindCase.INT32_VALUE) {
return reply.getReturnValue().getInt32Value();
}
throw new MxGatewayMalformedReplyException(
"AuthenticateUser returned a malformed reply: OK reply carried neither "
+ "the typed payload nor an int32 return_value");
}
/**
@@ -899,7 +911,12 @@ public final class MxGatewaySession implements AutoCloseable {
if (reply.hasArchestraUserToId()) {
return reply.getArchestraUserToId().getUserId();
}
return reply.getReturnValue().getInt32Value();
if (reply.hasReturnValue() && reply.getReturnValue().getKindCase() == MxValue.KindCase.INT32_VALUE) {
return reply.getReturnValue().getInt32Value();
}
throw new MxGatewayMalformedReplyException(
"ArchestrAUserToId returned a malformed reply: OK reply carried neither "
+ "the typed payload nor an int32 return_value");
}
/**
@@ -925,7 +942,12 @@ public final class MxGatewaySession implements AutoCloseable {
if (reply.hasAddBufferedItem()) {
return reply.getAddBufferedItem().getItemHandle();
}
return reply.getReturnValue().getInt32Value();
if (reply.hasReturnValue() && reply.getReturnValue().getKindCase() == MxValue.KindCase.INT32_VALUE) {
return reply.getReturnValue().getInt32Value();
}
throw new MxGatewayMalformedReplyException(
"AddBufferedItem returned a malformed reply: OK reply carried neither "
+ "the typed payload nor an int32 return_value");
}
/**
@@ -1027,6 +1049,162 @@ public final class MxGatewaySession implements AutoCloseable {
.build());
}
/**
* Invokes a credential-bearing command, scrubbing any exact secret the
* gateway may have echoed back into a surfaced failure message. The secret
* lives only in the request, but a non-parity gateway or provider can copy
* it into a diagnostic; this guarantees it never survives in the exception
* text a caller might log.
*
* <p>On failure both the exception's message <em>and</em> its structured
* context (the {@link ProtocolStatus} and {@link MxCommandReply} a caller can
* inspect and log) are scrubbed with {@link MxGatewaySecrets#redactExact}: the
* gateway echoes the credential into {@code protocolStatus.message},
* {@code reply.diagnosticMessage}, and each {@code statuses[i].diagnosticText}.
* If nothing carried the secret (the common case) the original exception is
* rethrown untouched. Otherwise it is re-thrown as the same concrete type
* carrying the redacted message and scrubbed context; the secret-bearing
* original is not chained as a cause, so it cannot leak through a printed
* stack trace.
*/
private MxCommandReply invokeCommandRedacted(MxCommand command, String... secrets) {
try {
return invokeCommand(command);
} catch (MxGatewayException ex) {
String original = ex.getMessage();
String redactedMessage = MxGatewaySecrets.redactExact(original, secrets);
boolean messageChanged = redactedMessage != null && !redactedMessage.equals(original);
ProtocolStatus status = protocolStatusOf(ex);
ProtocolStatus scrubbedStatus = scrubProtocolStatus(status, secrets);
boolean statusChanged = status != null && !status.equals(scrubbedStatus);
MxCommandReply reply = replyOf(ex);
MxCommandReply scrubbedReply = scrubReply(reply, secrets);
boolean replyChanged = reply != null && !reply.equals(scrubbedReply);
if (!messageChanged && !statusChanged && !replyChanged) {
throw ex;
}
String message = messageChanged ? redactedMessage : original;
throw rebuildRedacted(ex, message, scrubbedStatus, scrubbedReply);
}
}
/**
* Extracts the {@link ProtocolStatus} an exception carries, if any, so it can
* be scrubbed and re-attached to the rebuilt exception.
*/
private static ProtocolStatus protocolStatusOf(MxGatewayException ex) {
if (ex instanceof MxGatewayCommandException command) {
return command.protocolStatus();
}
if (ex instanceof MxGatewaySessionException session) {
return session.protocolStatus();
}
if (ex instanceof MxGatewayWorkerException worker) {
return worker.protocolStatus();
}
return null;
}
/**
* Extracts the raw {@link MxCommandReply} an exception carries, if any.
*/
private static MxCommandReply replyOf(MxGatewayException ex) {
if (ex instanceof MxGatewayCommandException command) {
return command.reply();
}
return null;
}
/**
* Rebuilds a gateway exception of the same concrete type with a redacted
* message and already-scrubbed context, mirroring the .NET client's
* type-switch. Only a truly-unknown subtype collapses to the base
* {@link MxGatewayException}. The original (secret-bearing) exception is
* deliberately not chained as a cause.
*/
private static MxGatewayException rebuildRedacted(
MxGatewayException ex, String message, ProtocolStatus status, MxCommandReply reply) {
if (ex instanceof MxAccessException) {
return new MxAccessException(message, status, reply, null);
}
if (ex instanceof MxGatewayCommandException) {
return new MxGatewayCommandException(message, status, reply, null);
}
if (ex instanceof MxGatewaySessionException) {
return new MxGatewaySessionException(message, status, null);
}
if (ex instanceof MxGatewayWorkerException) {
return new MxGatewayWorkerException(message, status, null);
}
if (ex instanceof MxGatewayMalformedReplyException) {
return new MxGatewayMalformedReplyException(message);
}
if (ex instanceof MxGatewayAuthenticationException) {
return new MxGatewayAuthenticationException(message, null);
}
if (ex instanceof MxGatewayAuthorizationException) {
return new MxGatewayAuthorizationException(message, null);
}
return new MxGatewayException(message);
}
/**
* Produces a scrubbed clone of a command reply, removing any exact secret the
* gateway echoed into {@code protocolStatus.message},
* {@code diagnosticMessage}, or a status's {@code diagnosticText}.
*
* @param reply the reply to scrub, or {@code null}
* @param secrets the exact secrets to strip
* @return {@code null} when {@code reply} is {@code null}, otherwise a clone
* with every echoed secret replaced by the redaction marker
*/
private static MxCommandReply scrubReply(MxCommandReply reply, String... secrets) {
if (reply == null) {
return null;
}
MxCommandReply.Builder builder = reply.toBuilder();
if (builder.hasProtocolStatus()) {
builder.setProtocolStatus(scrubProtocolStatus(builder.getProtocolStatus(), secrets));
}
builder.setDiagnosticMessage(MxGatewaySecrets.redactExact(builder.getDiagnosticMessage(), secrets));
for (int index = 0; index < builder.getStatusesCount(); index++) {
MxStatusProxy.Builder status = builder.getStatuses(index).toBuilder();
status.setDiagnosticText(MxGatewaySecrets.redactExact(status.getDiagnosticText(), secrets));
builder.setStatuses(index, status);
}
return builder.build();
}
/**
* Produces a scrubbed clone of a protocol status, removing any exact secret
* the gateway echoed into its free-form {@code message}.
*/
private static ProtocolStatus scrubProtocolStatus(ProtocolStatus status, String... secrets) {
if (status == null) {
return null;
}
return status.toBuilder()
.setMessage(MxGatewaySecrets.redactExact(status.getMessage(), secrets))
.build();
}
/**
* Extracts the string payload of a secured-write value so it can be scrubbed
* from an echoed failure message. Only string-kind values carry a
* credential-shaped secret worth redacting; other kinds return {@code null}
* (ignored by {@link MxGatewaySecrets#redactExact}).
*/
private static String secretStringOf(MxValue value) {
if (value != null && value.getKindCase() == MxValue.KindCase.STRING_VALUE) {
return value.getStringValue();
}
return null;
}
private static String newCorrelationId() {
byte[] bytes = new byte[16];
RANDOM.nextBytes(bytes);
@@ -20,6 +20,20 @@ public final class MxGatewaySessionException extends MxGatewayException {
this.protocolStatus = protocolStatus;
}
/**
* Creates a new session exception with an already-built, verbatim message.
* Used to re-surface a failure with a redacted message while preserving the
* (already scrubbed) protocol status.
*
* @param message the exact message to surface (already formatted/redacted)
* @param protocolStatus protocol status returned by the gateway
* @param cause underlying error, or {@code null}
*/
protected MxGatewaySessionException(String message, ProtocolStatus protocolStatus, Throwable cause) {
super(message, cause);
this.protocolStatus = protocolStatus;
}
/**
* Returns the gateway protocol status that triggered this exception.
*
@@ -20,6 +20,20 @@ public final class MxGatewayWorkerException extends MxGatewayException {
this.protocolStatus = protocolStatus;
}
/**
* Creates a new worker exception with an already-built, verbatim message.
* Used to re-surface a failure with a redacted message while preserving the
* (already scrubbed) protocol status.
*
* @param message the exact message to surface (already formatted/redacted)
* @param protocolStatus protocol status returned by the gateway
* @param cause underlying error, or {@code null}
*/
protected MxGatewayWorkerException(String message, ProtocolStatus protocolStatus, Throwable cause) {
super(message, cause);
this.protocolStatus = protocolStatus;
}
/**
* Returns the gateway protocol status that triggered this exception.
*
@@ -0,0 +1,201 @@
package com.zb.mom.ww.mxgateway.client;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import com.google.protobuf.util.JsonFormat;
import io.grpc.ManagedChannel;
import io.grpc.Server;
import io.grpc.inprocess.InProcessChannelBuilder;
import io.grpc.inprocess.InProcessServerBuilder;
import io.grpc.stub.StreamObserver;
import java.nio.file.Files;
import java.nio.file.Path;
import java.time.Duration;
import java.util.UUID;
import mxaccess_gateway.v1.MxAccessGatewayGrpc;
import mxaccess_gateway.v1.MxaccessGateway.MxCommandReply;
import mxaccess_gateway.v1.MxaccessGateway.MxCommandRequest;
import mxaccess_gateway.v1.MxaccessGateway.MxValue;
import mxaccess_gateway.v1.MxaccessGateway.ProtocolStatus;
import mxaccess_gateway.v1.MxaccessGateway.ProtocolStatusCode;
import org.junit.jupiter.api.Test;
final class MxGatewayCredentialReplyTests {
private static final String CREDENTIAL = "sup3rSecretVerify9f3a2b";
@Test
void authenticateUserRedactsEchoedCredentialFromReplyDrivenError() throws Exception {
assertCredentialFullyRedacted(
"authenticate-user.echoed-credential.reply.json", "auth-echo-session");
}
@Test
void authenticateUserRedactsEchoedCredentialFromMxAccessFailureReply() throws Exception {
assertCredentialFullyRedacted(
"authenticate-user.echoed-credential-mxaccess-failure.reply.json",
"auth-echo-failure-session");
}
private static void assertCredentialFullyRedacted(String fixture, String sessionId) throws Exception {
MxCommandReply reply = loadReply(fixture);
try (InProcessGateway gateway = InProcessGateway.startReturning(reply);
MxGatewayClient client = gateway.client()) {
MxGatewaySession session = MxGatewaySession.forSessionId(client, sessionId);
MxAccessException error = assertThrows(
MxAccessException.class,
() -> session.authenticateUser(12, "operator", CREDENTIAL));
assertFalse(error.getMessage().contains(CREDENTIAL),
"credential echoed by the gateway must not survive in the surfaced message");
assertTrue(error.getMessage().contains("<redacted>"),
"the echoed credential must be replaced with the redaction marker");
// The rebuilt exception must not re-expose the credential through the
// structured reply/protocolStatus a caller can inspect and log.
MxCommandReply surfaced = error.reply();
assertNotNull(surfaced, "the redacted exception must preserve a reply for inspection");
assertFalse(surfaced.getProtocolStatus().getMessage().contains(CREDENTIAL),
"reply protocol status message must not leak the echoed credential");
assertFalse(surfaced.getDiagnosticMessage().contains(CREDENTIAL),
"reply diagnostic message must not leak the echoed credential");
for (int index = 0; index < surfaced.getStatusesCount(); index++) {
assertFalse(surfaced.getStatusesList().get(index).getDiagnosticText().contains(CREDENTIAL),
"reply status diagnostic text must not leak the echoed credential");
}
assertNotNull(error.protocolStatus(), "the redacted exception must preserve a protocol status");
assertFalse(error.protocolStatus().getMessage().contains(CREDENTIAL),
"exception protocol status must not leak the echoed credential");
}
}
@Test
void authenticateUserMissingPayloadThrowsMalformedReply() throws Exception {
MxCommandReply reply = loadReply("authenticate-user.missing-payload.reply.json");
try (InProcessGateway gateway = InProcessGateway.startReturning(reply);
MxGatewayClient client = gateway.client()) {
MxGatewaySession session = MxGatewaySession.forSessionId(client, "auth-missing-session");
assertThrows(
MxGatewayMalformedReplyException.class,
() -> session.authenticateUser(3, "operator", "pw"));
}
}
@Test
void authenticateUserReturnValueOnlyReplyReturnsInt32Fallback() throws Exception {
MxCommandReply reply = loadReply("authenticate-user.return-value-only.reply.json");
try (InProcessGateway gateway = InProcessGateway.startReturning(reply);
MxGatewayClient client = gateway.client()) {
MxGatewaySession session = MxGatewaySession.forSessionId(client, "auth-return-session");
assertEquals(7, session.authenticateUser(3, "operator", "pw"));
}
}
@Test
void addBufferedItemReturnValueOnlyReplyReturnsInt32Fallback() throws Exception {
MxCommandReply reply = MxCommandReply.newBuilder()
.setProtocolStatus(ok())
.setReturnValue(MxValue.newBuilder().setInt32Value(55))
.build();
try (InProcessGateway gateway = InProcessGateway.startReturning(reply);
MxGatewayClient client = gateway.client()) {
MxGatewaySession session = MxGatewaySession.forSessionId(client, "buffered-return-session");
assertEquals(55, session.addBufferedItem(3, "Tank01.Level", "galaxy"));
}
}
@Test
void addBufferedItemMissingPayloadThrowsMalformedReply() throws Exception {
MxCommandReply reply = MxCommandReply.newBuilder().setProtocolStatus(ok()).build();
try (InProcessGateway gateway = InProcessGateway.startReturning(reply);
MxGatewayClient client = gateway.client()) {
MxGatewaySession session = MxGatewaySession.forSessionId(client, "buffered-malformed-session");
assertThrows(
MxGatewayMalformedReplyException.class,
() -> session.addBufferedItem(3, "Tank01.Level", "galaxy"));
}
}
private static ProtocolStatus ok() {
return ProtocolStatus.newBuilder()
.setCode(ProtocolStatusCode.PROTOCOL_STATUS_CODE_OK)
.build();
}
private static MxCommandReply loadReply(String fixture) throws Exception {
MxCommandReply.Builder builder = MxCommandReply.newBuilder();
JsonFormat.parser().merge(
Files.readString(fixtureRoot().resolve("command-replies/" + fixture)),
builder);
return builder.build();
}
private static Path fixtureRoot() {
Path current = Path.of(System.getProperty("user.dir")).toAbsolutePath();
for (Path path = current; path != null; path = path.getParent()) {
Path candidate = path.resolve("clients/proto/fixtures/behavior");
if (Files.exists(candidate)) {
return candidate;
}
candidate = path.resolve("../proto/fixtures/behavior").normalize();
if (Files.exists(candidate)) {
return candidate;
}
}
throw new IllegalStateException("could not locate behavior fixtures from " + current);
}
private record InProcessGateway(Server server, ManagedChannel channel) implements AutoCloseable {
static InProcessGateway startReturning(MxCommandReply reply) throws Exception {
String serverName = "mxgw-java-cred-" + UUID.randomUUID();
MxAccessGatewayGrpc.MxAccessGatewayImplBase service =
new MxAccessGatewayGrpc.MxAccessGatewayImplBase() {
@Override
public void invoke(
MxCommandRequest request, StreamObserver<MxCommandReply> responseObserver) {
responseObserver.onNext(reply);
responseObserver.onCompleted();
}
};
Server server = InProcessServerBuilder.forName(serverName)
.directExecutor()
.addService(service)
.build()
.start();
ManagedChannel channel = InProcessChannelBuilder.forName(serverName)
.directExecutor()
.build();
return new InProcessGateway(server, channel);
}
MxGatewayClient client() {
return new MxGatewayClient(
channel,
MxGatewayClientOptions.builder()
.endpoint("in-process")
.apiKey("")
.plaintext(true)
.callTimeout(Duration.ofSeconds(5))
.build());
}
@Override
public void close() {
channel.shutdownNow();
server.shutdownNow();
}
}
}
@@ -0,0 +1,50 @@
package com.zb.mom.ww.mxgateway.client;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNull;
import org.junit.jupiter.api.Test;
final class MxGatewaySecretsTests {
@Test
void redactExactReplacesEveryOccurrenceOfASecret() {
String message = "verify s3cr3t, retry s3cr3t, done s3cr3t";
String result = MxGatewaySecrets.redactExact(message, "s3cr3t");
assertFalse(result.contains("s3cr3t"), "no occurrence of the secret may survive");
assertEquals("verify <redacted>, retry <redacted>, done <redacted>", result);
}
@Test
void redactExactFullyRedactsOverlappingSecretsWhenOneIsASubstringOfTheOther() {
String message = "password=hunter2 token=hunter2extra";
String result = MxGatewaySecrets.redactExact(message, "hunter2extra", "hunter2");
assertFalse(result.contains("hunter2"), "both the secret and its superstring must be fully redacted");
assertEquals("password=<redacted> token=<redacted>", result);
}
@Test
void redactExactWithNoSecretsReturnsMessageUnchanged() {
String message = "nothing to scrub here";
assertEquals(message, MxGatewaySecrets.redactExact(message));
}
@Test
void redactExactToleratesNullMessage() {
assertNull(MxGatewaySecrets.redactExact(null, "secret"));
}
@Test
void redactExactIgnoresBlankSecretSoRealSpacesAreNotOverRedacted() {
String message = "keep these spaces intact";
String result = MxGatewaySecrets.redactExact(message, " ", "");
assertEquals(message, result);
}
}
@@ -0,0 +1,22 @@
{
"sessionId": "session-fixture",
"correlationId": "gateway-correlation-authenticate-echoed-mxaccess-failure",
"kind": "MX_COMMAND_KIND_AUTHENTICATE_USER",
"protocolStatus": {
"code": "PROTOCOL_STATUS_CODE_MXACCESS_FAILURE",
"message": "MXAccess AuthenticateUser rejected credential 'sup3rSecretVerify9f3a2b'."
},
"hresult": -2147024891,
"statuses": [
{
"success": 0,
"category": "MX_STATUS_CATEGORY_SECURITY_ERROR",
"detectedBy": "MX_STATUS_SOURCE_RESPONDING_NMX",
"detail": 5,
"rawCategory": 8,
"rawDetectedBy": 5,
"diagnosticText": "Authentication failed for password 'sup3rSecretVerify9f3a2b'."
}
],
"diagnosticMessage": "MXAccess echoed the credential 'sup3rSecretVerify9f3a2b' back in its failure diagnostic."
}
@@ -0,0 +1,22 @@
{
"sessionId": "session-fixture",
"correlationId": "gateway-correlation-authenticate-echoed",
"kind": "MX_COMMAND_KIND_AUTHENTICATE_USER",
"protocolStatus": {
"code": "PROTOCOL_STATUS_CODE_OK",
"message": "MXAccess AuthenticateUser rejected credential 'sup3rSecretVerify9f3a2b'."
},
"hresult": -2147024891,
"statuses": [
{
"success": 0,
"category": "MX_STATUS_CATEGORY_SECURITY_ERROR",
"detectedBy": "MX_STATUS_SOURCE_RESPONDING_NMX",
"detail": 5,
"rawCategory": 8,
"rawDetectedBy": 5,
"diagnosticText": "Authentication failed for password 'sup3rSecretVerify9f3a2b'."
}
],
"diagnosticMessage": "MXAccess echoed the credential 'sup3rSecretVerify9f3a2b' back in its failure diagnostic."
}
@@ -0,0 +1,10 @@
{
"sessionId": "session-fixture",
"correlationId": "gateway-correlation-authenticate-missing-payload",
"kind": "MX_COMMAND_KIND_AUTHENTICATE_USER",
"protocolStatus": {
"code": "PROTOCOL_STATUS_CODE_OK",
"message": "AuthenticateUser reached MXAccess."
},
"diagnosticMessage": "Malformed: the OK reply carried neither an AuthenticateUser payload nor a return_value."
}
@@ -0,0 +1,15 @@
{
"sessionId": "session-fixture",
"correlationId": "gateway-correlation-authenticate-return-value-only",
"kind": "MX_COMMAND_KIND_AUTHENTICATE_USER",
"protocolStatus": {
"code": "PROTOCOL_STATUS_CODE_OK",
"message": "AuthenticateUser reached MXAccess."
},
"returnValue": {
"dataType": "MX_DATA_TYPE_INTEGER",
"variantType": "VT_I4",
"int32Value": 7
},
"diagnosticMessage": "Legacy worker populated only return_value; the typed AuthenticateUser payload is absent."
}
@@ -48,6 +48,34 @@
"path": "command-replies/write.hresult-e-fail.reply.json",
"expectation": "A negative HRESULT fails the reply even when every status entry reports MX_STATUS_CATEGORY_OK."
},
{
"id": "command-reply.authenticate-user.echoed-credential",
"category": "command_replies",
"messageType": "mxaccess_gateway.v1.MxCommandReply",
"path": "command-replies/authenticate-user.echoed-credential.reply.json",
"expectation": "When a gateway/MXAccess diagnostic echoes the caller's credential back (OK envelope, negative HRESULT), the surfaced error redacts the exact secret from both the rendered message and the structured reply accessors."
},
{
"id": "command-reply.authenticate-user.echoed-credential-mxaccess-failure",
"category": "command_replies",
"messageType": "mxaccess_gateway.v1.MxCommandReply",
"path": "command-replies/authenticate-user.echoed-credential-mxaccess-failure.reply.json",
"expectation": "The same echoed-credential redaction holds when the reply is coded PROTOCOL_STATUS_CODE_MXACCESS_FAILURE, which every client routes to its MXAccess error type."
},
{
"id": "command-reply.authenticate-user.missing-payload",
"category": "command_replies",
"messageType": "mxaccess_gateway.v1.MxCommandReply",
"path": "command-replies/authenticate-user.missing-payload.reply.json",
"expectation": "An OK reply with neither the typed AuthenticateUser payload nor a return_value raises a typed malformed-reply error, never a proto3 default 0 and never an NRE."
},
{
"id": "command-reply.authenticate-user.return-value-only",
"category": "command_replies",
"messageType": "mxaccess_gateway.v1.MxCommandReply",
"path": "command-replies/authenticate-user.return-value-only.reply.json",
"expectation": "An OK reply missing the typed AuthenticateUser payload but carrying an int32 return_value falls back to the return_value (legacy-worker compatibility)."
},
{
"id": "event-stream.session-ordered",
"category": "event_streams",
@@ -3,6 +3,7 @@
"cases": [
{
"id": "ok.responding-lmx",
"wantSuccess": true,
"status": {
"success": 1,
"category": "MX_STATUS_CATEGORY_OK",
@@ -15,6 +16,7 @@
},
{
"id": "security-error.requesting-lmx",
"wantSuccess": false,
"status": {
"success": 0,
"category": "MX_STATUS_CATEGORY_SECURITY_ERROR",
@@ -27,6 +29,7 @@
},
{
"id": "raw-unknown-category",
"wantSuccess": false,
"status": {
"success": 0,
"category": "MX_STATUS_CATEGORY_UNKNOWN",
@@ -11,6 +11,7 @@ from .generated.galaxy_repository_pb2 import (
)
from .events import ReplayGap
from .errors import (
MalformedReplyError,
MxAccessError,
MxGatewayAuthenticationError,
MxGatewayAuthorizationError,
@@ -35,6 +36,7 @@ __all__ = [
"GalaxyRepositoryClient",
"GatewayClient",
"LazyBrowseNode",
"MalformedReplyError",
"MxAccessError",
"MxGatewayAuthenticationError",
"MxGatewayAuthorizationError",
@@ -53,6 +53,10 @@ class MxAccessError(MxGatewayCommandError):
"""MXAccess HRESULT or status failure."""
class MalformedReplyError(MxGatewayError):
"""Raised when an OK reply lacks the expected typed payload and any usable return_value fallback."""
def map_rpc_error(operation: str, error: grpc.RpcError) -> MxGatewayTransportError:
"""Map a generated gRPC exception to the client exception hierarchy."""
@@ -153,8 +157,18 @@ def ensure_mxaccess_success(operation: str, reply: pb.MxCommandReply) -> pb.MxCo
def _mxaccess_message(operation: str, reply: pb.MxCommandReply) -> str:
status_text = reply.protocol_status.message or "MXAccess command failed"
hresult = reply.hresult if reply.HasField("hresult") else None
return (
message = (
f"{operation} failed: {status_text}; "
f"session={reply.session_id}; correlation={reply.correlation_id}; "
f"hresult={hresult}; statuses={len(reply.statuses)}"
)
# Append a per-status breakdown that carries the raw `success` COM member
# verbatim for diagnostic parity with the other clients. `category` remains
# the authoritative verdict; `success` is diagnostics only.
for status in reply.statuses:
category = pb.MxStatusCategory.Name(status.category)
message += (
f" [success={status.success}, category={category}, "
f"detail={status.detail}, {status.diagnostic_text}]"
)
return message
@@ -5,7 +5,7 @@ from __future__ import annotations
from collections.abc import AsyncIterator, Sequence
from .auth import redact_secret
from .errors import MxGatewayError, ensure_mxaccess_success
from .errors import MalformedReplyError, MxGatewayError, ensure_mxaccess_success
from .events import ReplayGap
from .generated import mxaccess_gateway_pb2 as pb
from .values import MxValueInput, to_mx_value
@@ -710,7 +710,15 @@ class Session:
correlation_id=correlation_id,
secrets=[verify_user_password],
)
return reply.authenticate_user.user_id
if reply.HasField("authenticate_user"):
return reply.authenticate_user.user_id
if reply.HasField("return_value") and reply.return_value.WhichOneof("kind") == "int32_value":
return reply.return_value.int32_value
raise MalformedReplyError(
"authenticate_user returned a malformed reply: OK reply carried "
"neither the typed payload nor an int32 return_value",
raw_reply=reply,
)
async def archestra_user_to_id(
self,
@@ -730,7 +738,15 @@ class Session:
),
correlation_id=correlation_id,
)
return reply.archestra_user_to_id.user_id
if reply.HasField("archestra_user_to_id"):
return reply.archestra_user_to_id.user_id
if reply.HasField("return_value") and reply.return_value.WhichOneof("kind") == "int32_value":
return reply.return_value.int32_value
raise MalformedReplyError(
"archestra_user_to_id returned a malformed reply: OK reply carried "
"neither the typed payload nor an int32 return_value",
raw_reply=reply,
)
async def add_buffered_item(
self,
@@ -752,7 +768,15 @@ class Session:
),
correlation_id=correlation_id,
)
return reply.add_buffered_item.item_handle
if reply.HasField("add_buffered_item"):
return reply.add_buffered_item.item_handle
if reply.HasField("return_value") and reply.return_value.WhichOneof("kind") == "int32_value":
return reply.return_value.int32_value
raise MalformedReplyError(
"add_buffered_item returned a malformed reply: OK reply carried "
"neither the typed payload nor an int32 return_value",
raw_reply=reply,
)
async def set_buffered_update_interval(
self,
@@ -895,19 +919,47 @@ def _value_secrets(value: MxValueInput) -> list[str]:
def _redact_error(error: MxGatewayError, secrets: Sequence[str | None]) -> None:
"""Scrub secret substrings from a raised error's message in place.
"""Scrub secret substrings from a raised error's message and reply in place.
Rewrites ``error.args[0]`` (the message returned by ``str(error)``) through
the shared :func:`~zb_mom_ww_mxgateway.auth.redact_secret` seam so credential
text can never reach logs or be re-raised to a caller. The
``protocol_status`` / ``raw_reply`` context is left untouched those hold the
gateway's own fields, which never echo the client-supplied secret.
text can never reach logs or be re-raised to a caller.
A misbehaving MXAccess provider can echo the client-supplied credential back
verbatim in its failure diagnostics, so ``error.raw_reply`` (the protobuf
reply) can carry the secret in ``protocol_status.message``,
``diagnostic_message``, and each ``statuses[].diagnostic_text``. A logger
dumping those structured fields would reintroduce the leak the message scrub
closes. When there is a secret to scrub and a reply is attached, this rebinds
``error.raw_reply`` to a scrubbed deep copy so the raised exception carries no
credential text on any surface. The clone leaves the original reply untouched.
"""
scrubbed = [secret for secret in secrets if secret]
if not scrubbed:
return
if error.args and isinstance(error.args[0], str):
error.args = (redact_secret(error.args[0], scrubbed), *error.args[1:])
if error.raw_reply is not None:
error.raw_reply = _redact_reply(error.raw_reply, scrubbed)
def _redact_reply(reply: pb.MxCommandReply, secrets: Sequence[str]) -> pb.MxCommandReply:
"""Return a deep copy of *reply* with credential text scrubbed from diagnostics.
Operates on a clone so the caller's original reply object is never mutated.
Only the free-text diagnostic fields that can echo a client-supplied secret
are scrubbed; the structured/enum fields the gateway itself sets are left as-is.
"""
clone = type(reply)()
clone.CopyFrom(reply)
if clone.protocol_status.message:
clone.protocol_status.message = redact_secret(clone.protocol_status.message, secrets)
if clone.diagnostic_message:
clone.diagnostic_message = redact_secret(clone.diagnostic_message, secrets)
for status in clone.statuses:
if status.diagnostic_text:
status.diagnostic_text = redact_secret(status.diagnostic_text, secrets)
return clone
from .client import GatewayClient # noqa: E402
@@ -0,0 +1,112 @@
"""Tests for the uniform malformed-reply contract (CLI-41) and the CLI-40
credential-redaction regression, driven through the shared fixtures.
CLI-41: an OK reply that carries neither the expected typed payload nor a usable
``return_value`` int32 fallback raises :class:`MalformedReplyError`; a legacy
reply that populates only ``return_value`` falls back to that int32.
CLI-40: an OK reply whose diagnostics echo the caller's credential must never
surface that credential in the raised error message.
"""
from __future__ import annotations
import json
from pathlib import Path
import pytest
from google.protobuf.json_format import ParseDict
from zb_mom_ww_mxgateway import MalformedReplyError, MxAccessError
from zb_mom_ww_mxgateway.generated import mxaccess_gateway_pb2 as pb
from test_typed_command_helpers import _session_with
FIXTURE_ROOT = Path(__file__).resolve().parents[2] / "proto" / "fixtures" / "behavior"
def _load_reply(relative: str) -> pb.MxCommandReply:
path = FIXTURE_ROOT / relative
return ParseDict(json.loads(path.read_text()), pb.MxCommandReply())
@pytest.mark.asyncio
async def test_authenticate_user_missing_payload_raises_malformed_reply() -> None:
reply = _load_reply("command-replies/authenticate-user.missing-payload.reply.json")
session, _ = await _session_with([reply])
with pytest.raises(MalformedReplyError) as captured:
await session.authenticate_user(12, "operator", "any-password")
assert captured.value.raw_reply is reply
assert "malformed reply" in str(captured.value)
@pytest.mark.asyncio
async def test_authenticate_user_return_value_only_falls_back_to_int32() -> None:
reply = _load_reply("command-replies/authenticate-user.return-value-only.reply.json")
session, _ = await _session_with([reply])
user_id = await session.authenticate_user(12, "operator", "any-password")
assert user_id == 7
@pytest.mark.asyncio
async def test_add_buffered_item_falls_back_to_return_value_int32() -> None:
reply = pb.MxCommandReply(
session_id="session-1",
kind=pb.MX_COMMAND_KIND_ADD_BUFFERED_ITEM,
protocol_status=pb.ProtocolStatus(code=pb.PROTOCOL_STATUS_CODE_OK),
return_value=pb.MxValue(int32_value=99),
)
session, _ = await _session_with([reply])
item_handle = await session.add_buffered_item(12, "Object.Attribute", "ctx")
assert item_handle == 99
@pytest.mark.asyncio
async def test_add_buffered_item_missing_payload_raises_malformed_reply() -> None:
reply = pb.MxCommandReply(
session_id="session-1",
kind=pb.MX_COMMAND_KIND_ADD_BUFFERED_ITEM,
protocol_status=pb.ProtocolStatus(code=pb.PROTOCOL_STATUS_CODE_OK),
)
session, _ = await _session_with([reply])
with pytest.raises(MalformedReplyError) as captured:
await session.add_buffered_item(12, "Object.Attribute", "ctx")
assert captured.value.raw_reply is reply
@pytest.mark.parametrize(
"fixture",
[
"command-replies/authenticate-user.echoed-credential.reply.json",
"command-replies/authenticate-user.echoed-credential-mxaccess-failure.reply.json",
],
)
@pytest.mark.asyncio
async def test_authenticate_user_echoed_credential_is_scrubbed(fixture: str) -> None:
credential = "sup3rSecretVerify9f3a2b"
reply = _load_reply(fixture)
session, _ = await _session_with([reply])
with pytest.raises(MxAccessError) as captured:
await session.authenticate_user(12, "operator", credential)
exc = captured.value
message = str(exc)
assert credential not in message
assert "[redacted]" in message
# The credential must not survive in the structured protobuf context either:
# a logger dumping raw_reply's fields would otherwise reintroduce the leak.
assert exc.raw_reply is not None
assert credential not in exc.raw_reply.protocol_status.message
assert credential not in exc.raw_reply.diagnostic_message
for status in exc.raw_reply.statuses:
assert credential not in status.diagnostic_text
@@ -140,10 +140,19 @@ async def test_write_secured_surfaces_native_failure_without_prior_authenticate(
with pytest.raises(MxAccessError) as captured:
await session.write_secured(12, 34, secret_value, current_user_id=5, verifier_user_id=6)
# Native failure is surfaced (not "fixed") and the raw reply is preserved...
assert captured.value.raw_reply is failure
# ...but the credential-sensitive value is scrubbed from the surfaced message.
# Native failure is surfaced (not "fixed"): the raw reply's structure is
# preserved so callers still see the native verdict...
raw = captured.value.raw_reply
assert raw is not None
assert raw.kind == pb.MX_COMMAND_KIND_WRITE_SECURED
assert raw.hresult == -2147217407
assert raw.protocol_status.code == pb.PROTOCOL_STATUS_CODE_MXACCESS_FAILURE
# ...but the credential-sensitive value is scrubbed from the surfaced message
# AND from the reply's echoed diagnostics, so a logger dumping raw_reply's
# structured fields cannot reintroduce the leak.
assert secret_value not in str(captured.value)
assert secret_value not in raw.protocol_status.message
assert "[redacted]" in raw.protocol_status.message
command = stub.invoke.requests[0].command
assert command.kind == pb.MX_COMMAND_KIND_WRITE_SECURED
assert command.write_secured.current_user_id == 5
+95 -16
View File
@@ -193,17 +193,43 @@ impl std::error::Error for CommandError {}
/// The wrapper is heap-allocated inside [`Error::MxAccess`] to keep the
/// containing enum small. Callers can recover the reply with
/// [`MxAccessError::reply`] or [`MxAccessError::into_reply`]. Its `Display`
/// summarizes the `hresult` and status entries and scrubs any credential-like
/// tokens from diagnostic text before it reaches a caller.
#[derive(Clone, Debug)]
/// summarizes the `hresult` and status entries and scrubs credentials from the
/// rendered text before it reaches a caller: credential-*shaped* tokens
/// (`mxgw_...`, `bearer`) via a pattern scrub, plus any exact caller-supplied
/// secrets registered with [`MxAccessError::with_secrets`] — the latter catches
/// a password MXAccess echoed back verbatim even though it has no token shape.
///
/// `Debug` is hand-written (not derived) so the attached exact secrets never
/// reach `{:?}` output either: it scrubs them from the reply rendering and
/// prints only the count of attached secrets, never their values.
#[derive(Clone)]
pub struct MxAccessError {
reply: MxCommandReply,
/// Exact caller-supplied secrets (e.g. an `AuthenticateUser` password or a
/// `WriteSecured` string value) scrubbed from the rendered message. Empty
/// unless a helper attaches them via [`Self::with_secrets`].
secrets: Vec<String>,
}
impl MxAccessError {
/// Wrap a reply whose MXAccess-level result reported a failure.
pub fn new(reply: MxCommandReply) -> Self {
Self { reply }
Self {
reply,
secrets: Vec::new(),
}
}
/// Register exact caller-supplied secrets to scrub from the rendered
/// message, returning the updated error.
///
/// A credential MXAccess echoes back into its diagnostic text has no
/// `mxgw_`/`bearer` shape, so the pattern scrub cannot catch it. Attaching
/// the exact secret lets `Display` replace every occurrence with
/// `<redacted>`.
pub fn with_secrets(mut self, secrets: Vec<String>) -> Self {
self.secrets = secrets;
self
}
/// Borrow the underlying reply (correlation id, hresult, statuses).
@@ -217,15 +243,43 @@ impl MxAccessError {
}
}
impl std::fmt::Debug for MxAccessError {
fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
// Render the reply, scrub any exact caller secret from it, and never
// print the raw secrets themselves — only how many are attached.
let mut reply = format!("{:?}", self.reply);
for secret in &self.secrets {
if !secret.is_empty() {
reply = reply.replace(secret.as_str(), "<redacted>");
}
}
formatter
.debug_struct("MxAccessError")
.field("reply", &format_args!("{reply}"))
.field(
"secrets",
&format_args!("[{} redacted]", self.secrets.len()),
)
.finish()
}
}
impl std::fmt::Display for MxAccessError {
fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
use std::fmt::Write as _;
let hresult = match self.reply.hresult {
Some(value) => value.to_string(),
None => "none".to_owned(),
};
// Render the whole body first so the exact-secret scrub can sweep every
// field — including diagnostic text that already went through the
// credential-shape scrub — before any of it reaches the caller.
let mut body = String::new();
write!(
formatter,
body,
"hresult={hresult}, {} status entr{}",
self.reply.statuses.len(),
if self.reply.statuses.len() == 1 {
@@ -233,20 +287,28 @@ impl std::fmt::Display for MxAccessError {
} else {
"ies"
}
)?;
)
.expect("writing to a String is infallible");
for status in &self.reply.statuses {
let category = MxStatusCategory::try_from(status.category)
.unwrap_or(MxStatusCategory::Unspecified);
let diagnostic = redact_credentials(&status.diagnostic_text);
write!(
formatter,
body,
"; [success={}, category={category:?}, detail={}, {}]",
status.success, status.detail, diagnostic
)?;
)
.expect("writing to a String is infallible");
}
Ok(())
for secret in &self.secrets {
if !secret.is_empty() {
body = body.replace(secret.as_str(), "<redacted>");
}
}
formatter.write_str(&body)
}
}
@@ -284,10 +346,17 @@ impl From<tonic::Status> for Error {
/// Promote a non-OK protocol status carried inside an [`MxCommandReply`]
/// to an [`Error::Command`].
///
/// [`ProtocolStatusCode::MxaccessFailure`] is deliberately **not** a
/// command-level failure here: it signals an MXAccess-level rejection, so it
/// falls through to [`ensure_mxaccess_success`] and surfaces as
/// [`Error::MxAccess`] — matching the .NET, Java, Go, and Python clients. Every
/// other non-`Ok` code stays [`Error::Command`].
///
/// # Errors
///
/// Returns [`Error::Command`] when `reply.protocol_status` is missing or
/// reports any code other than [`ProtocolStatusCode::Ok`].
/// reports any code other than [`ProtocolStatusCode::Ok`] or
/// [`ProtocolStatusCode::MxaccessFailure`].
pub fn ensure_command_success(reply: MxCommandReply) -> Result<MxCommandReply, Error> {
let code = reply
.protocol_status
@@ -295,7 +364,7 @@ pub fn ensure_command_success(reply: MxCommandReply) -> Result<MxCommandReply, E
.and_then(|status| ProtocolStatusCode::try_from(status.code).ok())
.unwrap_or(ProtocolStatusCode::Unspecified);
if code == ProtocolStatusCode::Ok {
if code == ProtocolStatusCode::Ok || code == ProtocolStatusCode::MxaccessFailure {
Ok(reply)
} else {
Err(Box::new(CommandError::new(reply)).into())
@@ -306,9 +375,12 @@ pub fn ensure_command_success(reply: MxCommandReply) -> Result<MxCommandReply, E
/// [`MxCommandReply`] to an [`Error::MxAccess`].
///
/// This is the second reply check applied to the typed command path, after
/// [`ensure_command_success`] confirms the protocol envelope is `Ok`. It
/// enforces MXAccess parity: a reply can carry an `Ok` protocol envelope while
/// MXAccess itself rejected the operation. Following COM semantics, only a
/// [`ensure_command_success`] confirms the protocol envelope is `Ok` (or a
/// [`ProtocolStatusCode::MxaccessFailure`] the first check lets fall through).
/// It enforces MXAccess parity: a reply can carry an `Ok` protocol envelope
/// while MXAccess itself rejected the operation, and a
/// [`ProtocolStatusCode::MxaccessFailure`] envelope is itself an MXAccess-level
/// failure regardless of `hresult`. Following COM semantics, only a
/// **negative** `hresult` is a failure — positive codes such as `S_FALSE = 1`
/// are success. A `MXSTATUS_PROXY` entry is treated as a failure when its
/// `category` is not [`MxStatusCategory::Ok`]; the `success` member mirrors the
@@ -321,17 +393,24 @@ pub fn ensure_command_success(reply: MxCommandReply) -> Result<MxCommandReply, E
///
/// # Errors
///
/// Returns [`Error::MxAccess`] when `reply.hresult` is negative or any
/// Returns [`Error::MxAccess`] when the reply's protocol code is
/// [`ProtocolStatusCode::MxaccessFailure`], `reply.hresult` is negative, or any
/// `reply.statuses` entry reports a category other than
/// [`MxStatusCategory::Ok`].
pub fn ensure_mxaccess_success(reply: MxCommandReply) -> Result<MxCommandReply, Error> {
let protocol_code = reply
.protocol_status
.as_ref()
.and_then(|status| ProtocolStatusCode::try_from(status.code).ok())
.unwrap_or(ProtocolStatusCode::Unspecified);
let mxaccess_failure = protocol_code == ProtocolStatusCode::MxaccessFailure;
let hresult_failure = reply.hresult.is_some_and(|hresult| hresult < 0);
let status_failure = reply
.statuses
.iter()
.any(|status| status.category != MxStatusCategory::Ok as i32);
if hresult_failure || status_failure {
if mxaccess_failure || hresult_failure || status_failure {
Err(Box::new(MxAccessError::new(reply)).into())
} else {
Ok(reply)
+79 -11
View File
@@ -11,7 +11,7 @@
use std::sync::atomic::{AtomicU64, Ordering};
use crate::client::{EventStream, GatewayClient};
use crate::error::{ensure_protocol_success, Error};
use crate::error::{ensure_protocol_success, Error, MxAccessError};
use crate::generated::mxaccess_gateway::v1::mx_command::Payload;
use crate::generated::mxaccess_gateway::v1::mx_command_reply;
use crate::generated::mxaccess_gateway::v1::{
@@ -27,7 +27,7 @@ use crate::generated::mxaccess_gateway::v1::{
WriteSecured2BulkCommand, WriteSecured2BulkEntry, WriteSecured2Command,
WriteSecuredBulkCommand, WriteSecuredBulkEntry, WriteSecuredCommand,
};
use crate::value::{MxStatus, MxValue};
use crate::value::{MxStatus, MxValue, MxValueProjection};
const MAX_BULK_ITEMS: usize = 1_000;
@@ -801,6 +801,7 @@ impl Session {
verifier_user_id: i32,
value: MxValue,
) -> Result<(), Error> {
let secrets = string_secret(&value);
self.invoke(
MxCommandKind::WriteSecured,
Payload::WriteSecured(WriteSecuredCommand {
@@ -811,7 +812,8 @@ impl Session {
value: Some(value.into_proto()),
}),
)
.await?;
.await
.map_err(|error| attach_secrets(error, secrets))?;
Ok(())
}
@@ -831,6 +833,7 @@ impl Session {
value: MxValue,
timestamp_value: MxValue,
) -> Result<(), Error> {
let secrets = string_secret(&value);
self.invoke(
MxCommandKind::WriteSecured2,
Payload::WriteSecured2(WriteSecured2Command {
@@ -842,7 +845,8 @@ impl Session {
timestamp_value: Some(timestamp_value.into_proto()),
}),
)
.await?;
.await
.map_err(|error| attach_secrets(error, secrets))?;
Ok(())
}
@@ -882,7 +886,8 @@ impl Session {
verify_user_password: verify_user_password.to_owned(),
}),
)
.await?;
.await
.map_err(|error| attach_secrets(error, vec![verify_user_password.to_owned()]))?;
authenticate_user_id(&reply)
}
@@ -1074,18 +1079,81 @@ fn add_buffered_item_handle(reply: &MxCommandReply) -> Result<i32, Error> {
fn authenticate_user_id(reply: &MxCommandReply) -> Result<i32, Error> {
match reply.payload.as_ref() {
Some(mx_command_reply::Payload::AuthenticateUser(authenticate)) => Ok(authenticate.user_id),
_ => Err(Error::MalformedReply {
detail: "authenticate_user reply lacked an AuthenticateUser payload".to_owned(),
}),
_ => reply
.return_value
.as_ref()
.and_then(int32_reply_value)
.ok_or_else(|| Error::MalformedReply {
detail:
"authenticate_user reply lacked an AuthenticateUser payload or int32 return_value"
.to_owned(),
}),
}
}
fn archestra_user_id(reply: &MxCommandReply) -> Result<i32, Error> {
match reply.payload.as_ref() {
Some(mx_command_reply::Payload::ArchestraUserToId(archestra)) => Ok(archestra.user_id),
_ => Err(Error::MalformedReply {
detail: "archestra_user_to_id reply lacked an ArchestraUserToId payload".to_owned(),
}),
_ => reply
.return_value
.as_ref()
.and_then(int32_reply_value)
.ok_or_else(|| Error::MalformedReply {
detail:
"archestra_user_to_id reply lacked an ArchestraUserToId payload or int32 return_value"
.to_owned(),
}),
}
}
/// Extract an exact string secret from a credential-sensitive [`MxValue`] so a
/// failing `WriteSecured`/`WriteSecured2` can scrub it from the surfaced error.
/// Non-string values carry no scrubbable secret and yield an empty vector.
fn string_secret(value: &MxValue) -> Vec<String> {
match value.projection() {
MxValueProjection::String(text) if !text.is_empty() => vec![text.clone()],
_ => Vec::new(),
}
}
/// Attach caller-supplied exact secrets to an [`Error::MxAccess`] before it
/// propagates. This both scrubs the stored reply's caller-readable string
/// fields (so `reply()`/`into_reply()` cannot recover a credential MXAccess
/// echoed back verbatim) and keeps the secrets on the error as a
/// belt-and-suspenders for `Display`/`Debug`. Any other error variant is
/// returned unchanged.
fn attach_secrets(error: Error, secrets: Vec<String>) -> Error {
match error {
Error::MxAccess(boxed) => {
let mut reply = boxed.into_reply();
scrub_reply_strings(&mut reply, &secrets);
Error::MxAccess(Box::new(MxAccessError::new(reply).with_secrets(secrets)))
}
other => other,
}
}
/// Replace every non-empty secret occurrence with `<redacted>` in the reply's
/// caller-readable string fields — `protocol_status.message`,
/// `diagnostic_message`, and each `statuses[i].diagnostic_text`. A caller
/// reading the structured reply back off an [`Error::MxAccess`] would otherwise
/// reintroduce the leak that `Display`/`Debug` already close.
fn scrub_reply_strings(reply: &mut MxCommandReply, secrets: &[String]) {
for secret in secrets {
if secret.is_empty() {
continue;
}
if let Some(status) = reply.protocol_status.as_mut() {
status.message = status.message.replace(secret.as_str(), "<redacted>");
}
reply.diagnostic_message = reply
.diagnostic_message
.replace(secret.as_str(), "<redacted>");
for status in &mut reply.statuses {
status.diagnostic_text = status
.diagnostic_text
.replace(secret.as_str(), "<redacted>");
}
}
}
+217 -3
View File
@@ -84,8 +84,10 @@ async fn session_helpers_build_commands_and_preserve_command_errors() {
.write(12, 34, ClientMxValue::int32(123), 0)
.await
.unwrap_err();
let Error::Command(error) = error else {
panic!("write failure should preserve the raw command reply: {error:?}");
// A MXACCESS_FAILURE-coded reply is an MXAccess-level failure, routed to
// Error::MxAccess (matching .NET/Java/Go/Python) rather than Error::Command.
let Error::MxAccess(error) = error else {
panic!("MXACCESS_FAILURE reply should route to Error::MxAccess: {error:?}");
};
assert_eq!(
error.reply().protocol_status.as_ref().unwrap().code,
@@ -804,6 +806,179 @@ async fn authenticate_user_keeps_credentials_out_of_surfaced_errors() {
);
}
#[tokio::test]
async fn authenticate_user_scrubs_exact_caller_credential_echoed_in_diagnostic() {
// CLI-40: MXAccess can echo the supplied credential back inside its failure
// diagnostic (here in statuses[0].diagnostic_text). The token has no
// mxgw_/bearer shape, so the pattern scrub alone cannot catch it — the
// exact-secret scrub must replace the caller's password with <redacted>.
let credential = "sup3rSecretVerify9f3a2b";
let state = Arc::new(FakeState::default());
*state.invoke_override.lock().await = Some(InvokeOverride::CannedReply(Box::new(
command_reply_fixture("authenticate-user.echoed-credential.reply.json"),
)));
let endpoint = spawn_fake_gateway(state.clone()).await;
let client = GatewayClient::connect(ClientOptions::new(endpoint))
.await
.unwrap();
let session = client.session("session-fixture");
let error = session
.authenticate_user(7, "verifier", credential)
.await
.unwrap_err();
assert!(
matches!(error, Error::MxAccess(_)),
"OK protocol + negative hresult must route to Error::MxAccess: {error:?}"
);
let rendered = error.to_string();
assert!(
!rendered.contains(credential),
"exact caller credential leaked into the surfaced error: {rendered}"
);
assert!(
rendered.contains("<redacted>"),
"credential occurrence must be replaced with <redacted>: {rendered}"
);
}
/// Drive `authenticate_user` against a canned reply that echoes the caller's
/// credential in every string field, then assert the surfaced
/// [`Error::MxAccess`] leaks it nowhere — neither through the structured reply a
/// caller can read back (`reply().protocol_status.message`,
/// `reply().diagnostic_message`, `reply().statuses[i].diagnostic_text`) nor
/// through `Display`/`Debug`.
async fn assert_authenticate_user_scrubs_structured_reply(fixture: &str) {
let credential = "sup3rSecretVerify9f3a2b";
let state = Arc::new(FakeState::default());
*state.invoke_override.lock().await = Some(InvokeOverride::CannedReply(Box::new(
command_reply_fixture(fixture),
)));
let endpoint = spawn_fake_gateway(state.clone()).await;
let client = GatewayClient::connect(ClientOptions::new(endpoint))
.await
.unwrap();
let session = client.session("session-fixture");
let error = session
.authenticate_user(7, "verifier", credential)
.await
.unwrap_err();
let Error::MxAccess(mx_access) = &error else {
panic!("{fixture}: credential-echoed reply must route to Error::MxAccess, got {error:?}");
};
// The structured reply a caller can read back must be scrubbed too — the raw
// MxCommandReply otherwise reintroduces the leak Display/Debug already close.
let reply = mx_access.reply();
if let Some(status) = reply.protocol_status.as_ref() {
assert!(
!status.message.contains(credential),
"{fixture}: credential leaked via reply().protocol_status.message: {}",
status.message
);
}
assert!(
!reply.diagnostic_message.contains(credential),
"{fixture}: credential leaked via reply().diagnostic_message: {}",
reply.diagnostic_message
);
for (index, status) in reply.statuses.iter().enumerate() {
assert!(
!status.diagnostic_text.contains(credential),
"{fixture}: credential leaked via reply().statuses[{index}].diagnostic_text: {}",
status.diagnostic_text
);
}
let display = error.to_string();
let debug = format!("{error:?}");
assert!(
!display.contains(credential),
"{fixture}: credential leaked into Display: {display}"
);
assert!(
!debug.contains(credential),
"{fixture}: credential leaked into Debug: {debug}"
);
assert!(
display.contains("<redacted>"),
"{fixture}: Display must mark the redaction: {display}"
);
}
#[tokio::test]
async fn authenticate_user_scrubs_credential_from_structured_reply_ok_protocol_variant() {
// OK protocol envelope + negative hresult: already Error::MxAccess before
// ISSUE 2, but the stored reply's string fields still leaked the credential.
assert_authenticate_user_scrubs_structured_reply(
"authenticate-user.echoed-credential.reply.json",
)
.await;
}
#[tokio::test]
async fn authenticate_user_scrubs_credential_from_structured_reply_mxaccess_failure_variant() {
// PROTOCOL_STATUS_CODE_MXACCESS_FAILURE: before ISSUE 2 this landed in
// Error::Command (unscrubbed, raw Display/Debug) — the red-first case.
assert_authenticate_user_scrubs_structured_reply(
"authenticate-user.echoed-credential-mxaccess-failure.reply.json",
)
.await;
}
#[tokio::test]
async fn authenticate_user_maps_missing_payload_reply_to_malformed_reply() {
// CLI-41: an OK reply with neither a typed AuthenticateUser payload nor a
// return_value is malformed.
let state = Arc::new(FakeState::default());
*state.invoke_override.lock().await = Some(InvokeOverride::CannedReply(Box::new(
command_reply_fixture("authenticate-user.missing-payload.reply.json"),
)));
let endpoint = spawn_fake_gateway(state.clone()).await;
let client = GatewayClient::connect(ClientOptions::new(endpoint))
.await
.unwrap();
let session = client.session("session-fixture");
let error = session
.authenticate_user(7, "verifier", "pw")
.await
.unwrap_err();
assert!(
matches!(error, Error::MalformedReply { .. }),
"missing payload + missing return_value must be MalformedReply, got {error:?}"
);
}
#[tokio::test]
async fn authenticate_user_falls_back_to_return_value_when_typed_payload_absent() {
// CLI-41: an OK reply that carries only a return_value (legacy worker) must
// resolve the user id from it, mirroring add_buffered_item's fallback.
let state = Arc::new(FakeState::default());
*state.invoke_override.lock().await = Some(InvokeOverride::CannedReply(Box::new(
command_reply_fixture("authenticate-user.return-value-only.reply.json"),
)));
let endpoint = spawn_fake_gateway(state.clone()).await;
let client = GatewayClient::connect(ClientOptions::new(endpoint))
.await
.unwrap();
let session = client.session("session-fixture");
let user_id = session
.authenticate_user(7, "verifier", "pw")
.await
.unwrap();
assert_eq!(
user_id, 7,
"user id must resolve from the int32 return_value"
);
}
#[tokio::test]
async fn stream_alarms_emits_snapshot_then_complete_then_transition_in_order() {
let state = Arc::new(FakeState::default());
@@ -955,6 +1130,11 @@ enum InvokeOverride {
/// `AuthenticateUser` rejected by MXAccess) so the client's
/// `ensure_mxaccess_success` check is exercised on the typed helper path.
MxAccessFailure,
/// Reply with a caller-supplied canned [`MxCommandReply`]. Lets a test
/// drive a helper with a shared behavior fixture (e.g. the
/// echoed-credential / missing-payload / return-value-only
/// authenticate-user replies). Boxed to keep the enum small.
CannedReply(Box<MxCommandReply>),
}
#[derive(Clone)]
@@ -1057,6 +1237,7 @@ impl MxAccessGateway for FakeGateway {
payload: None,
..MxCommandReply::default()
})),
InvokeOverride::CannedReply(reply) => Ok(Response::new(*reply)),
InvokeOverride::WriteOk => {
// Extract and capture the WriteCommand payload so the test
// can assert on server_handle, item_handle, user_id, and value.
@@ -1443,15 +1624,48 @@ fn command_reply_fixture(file_name: &str) -> MxCommandReply {
})
.collect();
// The fixtures that exercise the return_value fallback path carry a typed
// `returnValue` (VT_I4). Project it so a canned reply can drive the
// helper's payload -> return_value -> MalformedReply precedence.
let return_value = fixture.get("returnValue").and_then(|value| {
value["int32Value"].as_i64().map(|int32| MxValue {
data_type: MxDataType::Integer as i32,
variant_type: value["variantType"].as_str().unwrap_or("VT_I4").to_owned(),
kind: Some(Kind::Int32Value(int32 as i32)),
..MxValue::default()
})
});
// Honor the fixture's real protocol status (code + message) so a canned
// reply can drive the MXACCESS_FAILURE routing path, not just an OK
// envelope. Falls back to an OK envelope when the fixture omits it.
let protocol_status = fixture.get("protocolStatus").map_or_else(
|| ok_status("command ok"),
|status| {
let code_name = status["code"].as_str().unwrap_or("PROTOCOL_STATUS_CODE_OK");
ProtocolStatus {
code: ProtocolStatusCode::from_str_name(code_name)
.unwrap_or_else(|| panic!("unknown protocol status code {code_name}"))
as i32,
message: status["message"].as_str().unwrap_or_default().to_owned(),
}
},
);
MxCommandReply {
session_id: fixture["sessionId"].as_str().unwrap_or_default().to_owned(),
correlation_id: fixture["correlationId"]
.as_str()
.unwrap_or_default()
.to_owned(),
protocol_status: Some(ok_status("command ok")),
protocol_status: Some(protocol_status),
hresult: fixture["hresult"].as_i64().map(|hresult| hresult as i32),
statuses,
diagnostic_message: fixture["diagnosticMessage"]
.as_str()
.unwrap_or_default()
.to_owned(),
return_value,
..MxCommandReply::default()
}
}
+40
View File
@@ -70,6 +70,40 @@ The rules those fixtures lock in are:
negative. Positive COM success codes such as `S_FALSE` pass, matching COM
semantics.
### Malformed-Reply And Credential-Redaction Conformance
Three further command reply fixtures pin the id/handle-extraction and
credential-redaction contracts for the credential-bearing helpers:
| Fixture | Reply | Expected behavior |
|---|---|---|
| `authenticate-user.echoed-credential.reply.json` | OK envelope, negative `hresult`, and the caller's credential echoed into `protocolStatus.message`, `statuses[0].diagnosticText`, and `diagnosticMessage` | the surfaced error redacts the exact secret from **both** the rendered message and the structured reply accessors (never leaks the verbatim value) |
| `authenticate-user.echoed-credential-mxaccess-failure.reply.json` | the same echo, but coded `PROTOCOL_STATUS_CODE_MXACCESS_FAILURE` | identical redaction; confirms every client routes the MXAccess-failure protocol code to its MXAccess error type and scrubs it |
| `authenticate-user.missing-payload.reply.json` | OK envelope, no `AuthenticateUser` payload, no `return_value` | a typed malformed-reply error, never a proto3 default `0` and never an NRE |
| `authenticate-user.return-value-only.reply.json` | OK envelope, `return_value.int32_value = 7`, no typed payload | the id resolves to `7` via the legacy `return_value` compatibility path |
The rules those fixtures lock in are:
- **Malformed-reply extraction (CLI-41).** Every helper that extracts a scalar
id/handle (`AuthenticateUser`, `ArchestrAUserToId`, `AddBufferedItem`, and the
handle extractors) prefers the typed payload; when it is absent it falls back
to `return_value` **only** when `return_value` is present with the expected
int32 variant; when neither is present it raises a typed malformed-reply error.
It never surfaces a proto3 default `0` and never throws a null-reference.
- **Credential redaction (CLI-40).** The credential-bearing helpers
(`AuthenticateUser`, `WriteSecured`/`WriteSecured2`) scrub the exact secret
values they were called with from any surfaced error — both the rendered
message text **and** the structured reply the error still exposes (a
server-echoed credential lives in `protocolStatus.message` and
`statuses[].diagnosticText`, which the error's raw-reply accessor would
otherwise re-expose to a logger dumping structured fields). The redacted error
therefore carries a scrubbed clone of the reply. This is defense-in-depth on
top of the by-construction guarantee that exceptions carry reply-derived text,
not the request. The marker is `<redacted>` in the Go, Rust, and Java clients
and `[redacted]` in the Python client and the .NET CLI; each suite asserts that
neither the surfaced message nor the exposed reply still contains the
credential, and that the message contains the client's marker.
## Event Streams
Event stream fixtures live in
@@ -100,6 +134,12 @@ behavior. A language helper may expose native booleans, integers, strings,
arrays, and timestamps, but it must keep `rawDiagnostic`, raw data type fields,
and raw byte payloads accessible when conversion is incomplete.
Each status case also carries an independent `wantSuccess` boolean alongside its
`status` object. The success/failure conformance tests assert the helper's
verdict against this fixture-declared expectation rather than recomputing it from
`category` (the same formula under test), so a regression in the verdict rule
cannot hide behind a self-consistent computation.
## Auth, Timeout, And Cancel Behavior
Authentication fixtures live in `clients/proto/fixtures/behavior/auth/`. They
+19 -2
View File
@@ -126,11 +126,28 @@ rules across all five clients (see
failing before a prior `AuthenticateUser` + `AdviseSupervisory` surfaces the
native failure unchanged — the helper does not pre-validate or reorder it.
**Malformed-reply extraction:** the id/handle-returning helpers
(`AuthenticateUser`, `ArchestrAUserToId`, `AddBufferedItem`, and the handle
extractors) follow one contract across all five clients — prefer the typed
payload; fall back to `return_value` only when it is present with the expected
int32 variant; when neither is present, raise a typed malformed-reply error.
They never surface a proto3 default `0` and never throw a null-reference (CLI-41).
**Credential handling:** `AuthenticateUser` credentials and `WriteSecured`
secured payloads route through each client's secret-redaction seam so they never
reach logs, exception text, or `ToString`/`Debug`/`Display` — the value is carried
only on the wire. Each client's test suite asserts a distinctive credential is
absent from any surfaced error.
only on the wire. In addition to that by-construction guarantee (exceptions carry
reply-derived text, not the request), every client scrubs the **exact** secret
values it was called with from any surfaced error as defense-in-depth, so a
gateway or MXAccess diagnostic that echoes a credential back cannot leak it
(CLI-40). The scrub covers **both** the rendered message and the structured reply
the error still exposes (`protocolStatus.message`, `statuses[].diagnosticText`,
`diagnosticMessage`): the redacted error carries a scrubbed clone of the reply so
a logger dumping the exception's structured fields cannot reintroduce the leak.
This holds regardless of whether the reply is coded `OK` (with a failing HRESULT)
or `MXACCESS_FAILURE` — every client routes both to its MXAccess error type. Each
client's test suite asserts the distinctive credential is absent from both the
surfaced message and the exposed reply, and that the redaction marker is present.
Shipped in all five clients (.NET / Go / Rust / Python / Java).