RssEnclosure.cs

using System;
using System.Collections.Generic;
using System.Xml;
using Waher.Content.Xml;
 
namespace Waher.Content.Rss
{
    public class RssEnclosure
    {
        public RssEnclosure(XmlElement Xml, Uri BaseUri)
        {
            if (Xml is null)
                throw new ArgumentNullException(nameof(Xml));
 
            List<RssWarning> Warnings = new List<RssWarning>();
 
            string s = XML.Attribute(Xml, "url");
            if (Uri.TryCreate(BaseUri, s, out Uri Url))
                this.Url = Url;
            else
                Warnings.Add(new RssWarning(Xml, "Invalid URL: " + Xml.OuterXml));
 
            this.Length = XML.Attribute(Xml, "length", 0L);
            if (this.Length <= 0)
                Warnings.Add(new RssWarning(Xml, "Invalid Length: " + Xml.OuterXml));
 
            this.ContentType = XML.Attribute(Xml, "type");
            if (string.IsNullOrEmpty(ContentType))
                Warnings.Add(new RssWarning(Xml, "Invalid Content-Type: " + Xml.OuterXml));
 
            this.Warnings = Warnings.ToArray();
        }
 
        public RssWarning[] Warnings { get; }
 
        public Uri Url { get; } = null;
 
        public long Length { get; }
 
        public string ContentType { get; }
    }
}