Joseph Doherty
128 lines
4.3 KiB
Plaintext
128 lines
4.3 KiB
Plaintext
@* OPC UA Client address picker:
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1. Manual NodeId entry (always available)
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2. (DriverOperator-gated) Browse remote server with live tree, lazy expand. *@
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@implements IAsyncDisposable
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@using Microsoft.AspNetCore.Authorization
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@using ZB.MOM.WW.OtOpcUa.AdminUI.Browsing
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@using ZB.MOM.WW.OtOpcUa.Commons.Browsing
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@inject IBrowserSessionService BrowserService
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@inject AuthenticationStateProvider AuthState
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@inject IAuthorizationService AuthorizationService
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<div class="row g-3">
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<div class="col-md-10">
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<label class="form-label">NodeId</label>
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<input type="text" class="form-control form-control-sm mono"
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placeholder="ns=2;s=Channel.Device.Tag"
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@bind="_nodeId" @bind:after="OnChangedAsync" />
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<div class="form-text">
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OPC UA NodeId string, e.g. <code>ns=2;s=Channel.Device.Tag</code> or
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<code>i=1001</code>. Use Browse to navigate the remote server.
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</div>
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</div>
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</div>
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@if (_canOperate)
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{
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<div class="mt-3 d-flex align-items-center gap-2">
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@if (_token == Guid.Empty)
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{
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<button type="button" class="btn btn-outline-primary btn-sm"
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disabled="@_opening" @onclick="OpenBrowseAsync">
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@if (_opening) { <span class="spinner-border spinner-border-sm me-1"></span> }
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Browse remote server
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</button>
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}
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else
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{
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<span class="chip chip-ok">Browser open</span>
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<button type="button" class="btn btn-outline-secondary btn-sm" @onclick="CloseBrowseAsync">
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Close
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</button>
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}
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@if (_openError is not null) { <RefusalChip Message="@_openError" /> }
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</div>
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@if (_token != Guid.Empty)
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{
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<div class="mt-2">
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<DriverBrowseTree SessionToken="_token" OnNodeSelected="OnTreeSelectAsync"
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SelectedNodeId="@_nodeId" />
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</div>
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}
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}
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<div class="mt-3">
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<span class="text-muted small">Result:</span>
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<code class="mono ms-2" title="@_built">@DisplayText.Abbreviate(_built, 64)</code>
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</div>
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@code {
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[Parameter] public string CurrentAddress { get; set; } = "";
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[Parameter] public EventCallback<string> CurrentAddressChanged { get; set; }
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[Parameter, EditorRequired] public Func<string> GetConfigJson { get; set; } = () => "{}";
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private string _nodeId = "";
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private string _built = "";
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private Guid _token = Guid.Empty;
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// Set first thing in DisposeAsync; an open that lands afterwards closes its own session.
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private volatile bool _disposed;
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private bool _opening;
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private bool _canOperate;
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private string? _openError;
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protected override async Task OnInitializedAsync()
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{
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var auth = await AuthState.GetAuthenticationStateAsync();
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var authResult = await AuthorizationService.AuthorizeAsync(auth.User, null, AdminUiPolicies.DriverOperator);
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_canOperate = authResult.Succeeded;
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_built = _nodeId;
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await CurrentAddressChanged.InvokeAsync(_built);
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}
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private async Task OpenBrowseAsync()
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{
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_opening = true; _openError = null; StateHasChanged();
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try
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{
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var json = GetConfigJson() ?? "{}";
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var result = await BrowserService.OpenAsync("OpcUaClient", json, default);
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// Host disposed mid-open: close the session nobody will (R04 L4).
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if (BrowseOpenGuard.CloseIfOrphaned(result, _disposed, BrowserService)) { return; }
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if (result.Ok) _token = result.Token;
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else _openError = result.Message;
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}
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finally { _opening = false; StateHasChanged(); }
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}
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private async Task CloseBrowseAsync()
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{
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var t = _token; _token = Guid.Empty; StateHasChanged();
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if (t != Guid.Empty) await BrowserService.CloseAsync(t);
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}
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private async Task OnTreeSelectAsync(BrowseNode node)
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{
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_nodeId = node.NodeId;
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await OnChangedAsync();
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}
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private async Task OnChangedAsync()
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{
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_built = _nodeId;
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await CurrentAddressChanged.InvokeAsync(_built);
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}
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public ValueTask DisposeAsync()
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{
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_disposed = true;
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if (_token != Guid.Empty)
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{
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// Fire-and-forget — don't block circuit teardown on a slow remote.
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_ = BrowserService.CloseAsync(_token);
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}
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return ValueTask.CompletedTask;
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}
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}
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