GetSessionToken.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Xml;
using Waher.Content;
using Waher.Networking.HTTP;
using Waher.Script;
using Waher.Script.Abstraction.Elements;
 
namespace Waher.Service.IoTBroker.WebServices.Agent.Account
{
    public class GetSessionToken : AgentPostResource
    {
        public GetSessionToken()
            : base("Account/GetSessionToken",
                new KeyValuePair<Type, Expression>(typeof(Dictionary<string, object>), new Expression(jsonPattern)),
                new KeyValuePair<Type, Expression>(typeof(XmlDocument), new Expression(xmlPattern)))
        {
        }
 
        private static readonly string jsonPattern = Resources.LoadResourceAsText(typeof(GetSessionToken).Namespace + ".JSON.GetSessionToken.req");
        private static readonly string xmlPattern = Resources.LoadResourceAsText(typeof(GetSessionToken).Namespace + ".XML.GetSessionToken.req");
 
        public override HttpAuthenticationScheme[] GetAuthenticationSchemes(HttpRequest Request)
        {
            base.GetAuthenticationSchemes(Request);     // Initialize factory property.
            return null;
        }
 
        public override bool UserSessions => true;
 
        public override async Task POST(HttpRequest Request, HttpResponse Response, Dictionary<string, IElement> Parameters)
        {
            if (!Request.Session.TryGetVariable(CreateWebForm.SessionTokenInfoVariableName, out Variable v) ||
                !(v.ValueElement.AssociatedObjectValue is SessionTokenInfo Info))
            {
                throw new NotFoundException("Session token information not found.");
            }
 
            if (Info.Expires < DateTime.UtcNow.Subtract(JSON.UnixEpoch).TotalSeconds)
                throw new BadRequestException("Token has expired.");
 
            await Response.Return(new NamedDictionary<string, object>("SessionToken", AgentNamespace)
            {
                { "AccountCreated", new Dictionary<string,object>()
                    {
                        { "created", Info.Account.Created },
                        { "enabled", Info.Account.Enabled },
                        { "canRelay", Info.Account.CanRelayMessages },
                        { "jwt", Info.Token },
                        { "expires", Info.Expires },
                    }
                },
                { "seconds", Info.Seconds }
            });
        }
    }
}