93 lines
3.8 KiB
C#
93 lines
3.8 KiB
C#
using Opc.Ua;
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using Opc.Ua.Client;
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using Opc.Ua.Configuration;
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namespace OpcUaCli;
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public static class OpcUaHelper
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{
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/// <summary>
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/// Creates an OPC UA client session for the specified endpoint URL.
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/// </summary>
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/// <param name="endpointUrl">The OPC UA endpoint URL to connect to.</param>
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/// <returns>An active OPC UA client session.</returns>
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public static async Task<Session> ConnectAsync(string endpointUrl)
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{
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var config = new ApplicationConfiguration
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{
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ApplicationName = "OpcUaCli",
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ApplicationUri = "urn:localhost:OpcUaCli",
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ApplicationType = ApplicationType.Client,
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SecurityConfiguration = new SecurityConfiguration
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{
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ApplicationCertificate = new CertificateIdentifier
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "OpcUaCli", "pki", "own")
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},
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TrustedIssuerCertificates = new CertificateTrustList
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "OpcUaCli", "pki", "issuer")
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},
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TrustedPeerCertificates = new CertificateTrustList
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "OpcUaCli", "pki", "trusted")
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},
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RejectedCertificateStore = new CertificateTrustList
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "OpcUaCli", "pki", "rejected")
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},
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AutoAcceptUntrustedCertificates = true
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},
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ClientConfiguration = new ClientConfiguration { DefaultSessionTimeout = 60000 }
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};
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#pragma warning disable CS0618 // Sync/obsolete API is fine for a CLI tool
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await config.Validate(ApplicationType.Client);
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config.CertificateValidator.CertificateValidation += (_, e) => e.Accept = true;
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var endpoint = CoreClientUtils.SelectEndpoint(config, endpointUrl, false);
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var endpointConfig = EndpointConfiguration.Create(config);
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var configuredEndpoint = new ConfiguredEndpoint(null, endpoint, endpointConfig);
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var session = await Session.Create(
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config,
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configuredEndpoint,
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false,
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"OpcUaCli",
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60000,
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null,
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null);
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return session;
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#pragma warning restore CS0618
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}
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/// <summary>
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/// Converts a raw command-line string into the runtime type expected by the target node.
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/// </summary>
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/// <param name="rawValue">The raw string supplied by the user.</param>
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/// <param name="currentValue">The current node value used to infer the target type.</param>
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/// <returns>A typed value suitable for an OPC UA write request.</returns>
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public static object ConvertValue(string rawValue, object? currentValue)
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{
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return currentValue switch
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{
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bool => bool.Parse(rawValue),
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byte => byte.Parse(rawValue),
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short => short.Parse(rawValue),
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ushort => ushort.Parse(rawValue),
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int => int.Parse(rawValue),
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uint => uint.Parse(rawValue),
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long => long.Parse(rawValue),
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ulong => ulong.Parse(rawValue),
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float => float.Parse(rawValue),
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double => double.Parse(rawValue),
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_ => rawValue
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};
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}
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}
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