| | | 1 | | using System.Text.Json; |
| | | 2 | | using Elsa.Expressions.Contracts; |
| | | 3 | | using Elsa.Expressions.Models; |
| | | 4 | | using Elsa.Secrets.Expressions; |
| | | 5 | | using Microsoft.Extensions.DependencyInjection; |
| | | 6 | | |
| | | 7 | | namespace Elsa.Secrets.Providers; |
| | | 8 | | |
| | | 9 | | /// <summary> |
| | | 10 | | /// Provides the Secret expression descriptor. |
| | | 11 | | /// </summary> |
| | | 12 | | public class SecretExpressionDescriptorProvider : IExpressionDescriptorProvider |
| | | 13 | | { |
| | | 14 | | private const string SecretPickerUIHint = "secret-picker"; |
| | | 15 | | private const string SecretPickerEndpoint = "/secrets/picker"; |
| | | 16 | | |
| | | 17 | | /// <inheritdoc /> |
| | | 18 | | public IEnumerable<ExpressionDescriptor> GetDescriptors() |
| | | 19 | | { |
| | 6 | 20 | | yield return new() |
| | 6 | 21 | | { |
| | 6 | 22 | | Type = SecretExpression.TypeName, |
| | 6 | 23 | | DisplayName = "Secret", |
| | 6 | 24 | | HandlerFactory = ActivatorUtilities.GetServiceOrCreateInstance<SecretExpressionHandler>, |
| | 6 | 25 | | Properties = new Dictionary<string, object> |
| | 6 | 26 | | { |
| | 6 | 27 | | ["UIHint"] = SecretPickerUIHint, |
| | 6 | 28 | | ["PickerEndpoint"] = SecretPickerEndpoint |
| | 6 | 29 | | }, |
| | 6 | 30 | | Deserialize = Deserialize |
| | 6 | 31 | | }; |
| | 6 | 32 | | } |
| | | 33 | | |
| | | 34 | | private static Expression Deserialize(ExpressionSerializationContext context) |
| | | 35 | | { |
| | 5 | 36 | | var valueElement = context.JsonElement.TryGetProperty("value", out var v) ? v : default; |
| | | 37 | | |
| | 5 | 38 | | if (valueElement.ValueKind is JsonValueKind.Undefined or JsonValueKind.Null) |
| | 0 | 39 | | return new Expression(SecretExpression.TypeName, null); |
| | | 40 | | |
| | 5 | 41 | | var reference = DeserializeReference(valueElement, context.Options); |
| | 5 | 42 | | return new Expression(SecretExpression.TypeName, reference); |
| | | 43 | | } |
| | | 44 | | |
| | | 45 | | private static SecretReference? DeserializeReference(JsonElement valueElement, JsonSerializerOptions options) |
| | | 46 | | { |
| | | 47 | | try |
| | | 48 | | { |
| | 5 | 49 | | return valueElement.ValueKind switch |
| | 5 | 50 | | { |
| | 2 | 51 | | JsonValueKind.Object => valueElement.Deserialize<SecretReference>(options), |
| | 3 | 52 | | JsonValueKind.String => DeserializeStringReference(valueElement.GetString(), options), |
| | 0 | 53 | | _ => null |
| | 5 | 54 | | }; |
| | | 55 | | } |
| | 0 | 56 | | catch (JsonException) |
| | | 57 | | { |
| | 0 | 58 | | return null; |
| | | 59 | | } |
| | 5 | 60 | | } |
| | | 61 | | |
| | | 62 | | private static SecretReference? DeserializeStringReference(string? value, JsonSerializerOptions options) |
| | | 63 | | { |
| | 3 | 64 | | if (string.IsNullOrWhiteSpace(value)) |
| | 1 | 65 | | return null; |
| | | 66 | | |
| | 2 | 67 | | var trimmedValue = value.Trim(); |
| | 2 | 68 | | if (trimmedValue.StartsWith('{')) |
| | 1 | 69 | | return JsonSerializer.Deserialize<SecretReference>(trimmedValue, options); |
| | | 70 | | |
| | 1 | 71 | | return new SecretReference(trimmedValue); |
| | | 72 | | } |
| | | 73 | | } |