WebhookController.cs

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json.Linq;

namespace rubberduckvba.Server.Api.Admin;

[ApiController]
public class WebhookController : RubberduckApiController
{
    private readonly WebhookPayloadValidationService _validator;
    private readonly HangfireLauncherService _hangfire;

    public WebhookController(
        ILogger<WebhookController> logger,
        HangfireLauncherService hangfire,
        WebhookPayloadValidationService validator)
        : base(logger)
    {
        _validator = validator;
        _hangfire = hangfire;
    }

    [Authorize("webhook", AuthenticationSchemes = "webhook-signature")]
    [HttpPost("webhook/github")]
    public IActionResult GitHub([FromBody] JToken payload)
    {
        var eventType = _validator.Validate(payload, Request.Headers, out var content, out var gitref);

        if (eventType == WebhookPayloadType.Push)
        {
            var jobId = _hangfire.UpdateXmldocContent();
            var message = $"Webhook push event was accepted. Tag '{gitref?.Name}' associated to the payload will be processed by JobId '{jobId}'.";

            Logger.LogInformation(message);
            return Ok(message);
        }
        else if (eventType == WebhookPayloadType.Greeting)
        {
            Logger.LogInformation("Webhook push event was accepted; nothing to process. {content}", content);
            return string.IsNullOrWhiteSpace(content) ? NoContent() : Ok(content);
        }

        // reject the payload
        return BadRequest();
    }
}