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feat(calls): implement Linux LAN peer calls over SRTP

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Reuse existing ChatHub consent and Podcast LibVLC capture for direct bidirectional H.264/AAC media, with embedded call controls and cleanup. Require HTTPS key exchange and reject IP-masking policies for this opt-in LAN/VPN transport.

Add native SRTP, signaling and lifecycle tests; document setup and remaining physical-device validation.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Paul Schneider 2026-10-26 03:05:23 +00:00
commit cc28ee8b29
Signed by: notazof
GPG key ID: AD4B9B545FBD7D12
20 changed files with 1394 additions and 29 deletions
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6
src/PostIt/PostIt.Tests/CallSignalingClientTests.cs
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@ -15,6 +15,7 @@ public sealed class CallSignalingClientTests
var id = Guid.NewGuid();
var ct = TestContext.Current.CancellationToken;
await Assert.ThrowsAsync<InvalidOperationException>(() => client.InviteAsync("General", "bob", ct));
await Assert.ThrowsAsync<InvalidOperationException>(() => client.InviteLanAsync("General", "bob", ct));
await Assert.ThrowsAsync<InvalidOperationException>(() => client.AcceptAsync(id, ct));
await Assert.ThrowsAsync<InvalidOperationException>(() => client.EndAsync(id, ct));
await Assert.ThrowsAsync<InvalidOperationException>(() => client.SendAsync(id, new("offer", "sdp"), ct));
@ -50,5 +51,10 @@ public sealed class CallSignalingClientTests
var signal = new CallSignal("candidate", Candidate: "candidate:1 1 udp 100 192.0.2.1 5000 typ relay",
SdpMid: "video", SdpMLineIndex: 1);
Assert.Equal(signal, JsonSerializer.Deserialize<CallSignal>(JsonSerializer.Serialize(signal, options), options));
var lan = call with { RelayOnly = false, Transport = CallTransports.LanSrtp };
Assert.Equal(lan, JsonSerializer.Deserialize<CallSession>(JsonSerializer.Serialize(lan, options), options));
var endpoint = new CallSignal("rtp-endpoint",
Endpoint: new("192.168.1.2", 5004, new string('a', 32), new string('b', 28)));
Assert.Equal(endpoint, JsonSerializer.Deserialize<CallSignal>(JsonSerializer.Serialize(endpoint, options), options));
}
}