R0.1 browse over gRPC SHIPPED — QueryTag cracked, M0 gRPC parity complete
Wires HistorianClient.BrowseTagNamesAsync over gRPC (Transport==RemoteGrpc) via
Grpc/HistorianGrpcTagClient.BrowseTagNamesAsync: StartTagQuery(OData) -> paged
QueryTag -> EndTagQuery. Live-verified against a real 2023 R2 server (returns Sys* tags).
QueryTag packet-id recovered WITHOUT native disassembly: a .rdata packet-descriptor
table in aahClientManaged.dll lists {0x6751,1}=StartTagQuery immediately followed by
{0x6752,1}=QueryTag (found via pefile byte-scan of .rdata), confirmed live.
Wire format (live-verified):
- request btRequest = u16 0x6752 + u16 version(1) + u16 queryType(1=names) + u32 startIndex + u32 count
- response btResonse = u32 count + per-name(u32 charCount + UTF-16LE) + trailer (NextIndex/metadata, ignored)
- new HistorianTagQueryProtocol.ParseTagNameQueryPage tolerates the trailer
- GlobToODataFilter translates the SDK glob filter to OData (Pre*->startswith, *suf->endswith,
*mid*->contains, exact->eq); the 2023 R2 metadata-server parses filters as OData.
Replaces the earlier RE probe helpers with the shipped browse path. Adds golden-byte
(BuildQueryTagRequest) + 8 glob-translation unit tests + gated live browse test.
226 unit tests pass; 5/5 live gRPC tests pass (read, probe, system-param, metadata, browse).
Milestone 0 (full gRPC parity) is complete.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B6mcaT2PjRFKcogzp9UkfC
This commit is contained in:
@@ -152,6 +152,36 @@ public sealed class HistorianGrpcTransportTests
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Assert.Equal(expected, buffer);
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}
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[Fact]
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public void BuildQueryTagRequest_EncodesMarkerVersionTypeStartCount()
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{
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// R0.1 QueryTag paging request: u16 0x6752 + u16 1 + u16 queryType + u32 startIndex + u32 count.
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byte[] buffer = AVEVA.Historian.Client.Grpc.HistorianGrpcTagClient.BuildQueryTagRequest(1, 0, 50);
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byte[] expected =
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[
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0x52, 0x67, // marker 0x6752
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0x01, 0x00, // version 1
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0x01, 0x00, // queryType 1 (names)
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0x00, 0x00, 0x00, 0x00, // startIndex 0
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0x32, 0x00, 0x00, 0x00 // count 50
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];
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Assert.Equal(expected, buffer);
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}
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[Theory]
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[InlineData("*", "")]
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[InlineData("", "")]
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[InlineData("Sys*", "startswith(TagName,'Sys')")]
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[InlineData("*Total", "endswith(TagName,'Total')")]
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[InlineData("*Alarm*", "contains(TagName,'Alarm')")]
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[InlineData("Exact.Tag", "TagName eq 'Exact.Tag'")]
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[InlineData("Pre*Suf", "startswith(TagName,'Pre') and endswith(TagName,'Suf')")]
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[InlineData("O'Brien*", "startswith(TagName,'O''Brien')")]
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public void GlobToODataFilter_TranslatesWildcards(string glob, string expected)
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{
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Assert.Equal(expected, AVEVA.Historian.Client.Grpc.HistorianGrpcTagClient.GlobToODataFilter(glob));
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}
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[Fact]
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public void OpenConnectionRequest_CarriesNativeOpen2BufferUnchanged()
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{
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