60 lines
2.2 KiB
C#
60 lines
2.2 KiB
C#
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Net.Http;
|
|
using Elsa.Attributes;
|
|
using Elsa.Extensions;
|
|
using Elsa.Management.Models;
|
|
using Elsa.Models;
|
|
using Elsa.Modules.Http.Models;
|
|
|
|
namespace Elsa.Modules.Http;
|
|
|
|
[Activity("Http", "Waits for an inbound HTTP request that matches the specified path and methods", category: "HTTP")]
|
|
public class HttpEndpoint : Trigger<HttpRequestModel>
|
|
{
|
|
public const string InputKey = "HttpRequest";
|
|
|
|
[Input] public Input<string> Path { get; set; } = default!;
|
|
|
|
[Input(
|
|
Options = new[] { "GET", "POST", "PUT" },
|
|
UIHint = InputUIHints.CheckList
|
|
)]
|
|
public Input<ICollection<string>> SupportedMethods { get; set; } = new(new[] { HttpMethod.Get.Method });
|
|
|
|
[Input(
|
|
Description = "Allow authenticated requests only",
|
|
Category = "Security"
|
|
)]
|
|
public Input<bool> Authorize { get; set; } = new(false);
|
|
|
|
[Input(
|
|
Description = "Provide a policy to evaluate. If the policy fails, the request is forbidden.",
|
|
Category = "Security"
|
|
)]
|
|
public Input<string?> Policy { get; set; } = new(default(string?));
|
|
|
|
protected override IEnumerable<object> GetTriggerData(TriggerIndexingContext context) => GetBookmarkData(context.ExpressionExecutionContext);
|
|
|
|
protected override void Execute(ActivityExecutionContext context)
|
|
{
|
|
// If we did not receive external input, it means we are just now encountering this activity.
|
|
if (!context.TryGetInput<HttpRequestModel>(InputKey, out var request))
|
|
{
|
|
// Create bookmarks for when we receive the expected HTTP request.
|
|
context.CreateBookmarks(GetBookmarkData(context.ExpressionExecutionContext));
|
|
return;
|
|
}
|
|
|
|
// Provide the received HTTP request as output.
|
|
context.Set(Result, request);
|
|
}
|
|
|
|
private IEnumerable<object> GetBookmarkData(ExpressionExecutionContext context)
|
|
{
|
|
// Generate bookmark data for path and selected methods.
|
|
var path = context.Get(Path);
|
|
var methods = context.Get(SupportedMethods);
|
|
return methods!.Select(x => new HttpBookmarkData(path!, x.ToLowerInvariant())).Cast<object>().ToArray();
|
|
}
|
|
} |