misc: Remove URI check from EmbedBuilder (#1778)

`Uri.IsWellFormedUriString()` doesn't return the expected result for specific urls, removed until the DotNet team actually resolves it ( https://github.com/dotnet/runtime/issues/21626 )

src/Discord.Net.Core/Entities/Messages/EmbedBuilder.cs

@@ -12,7 +12,6 @@ namespace Discord
     {
         private string _title;
         private string _description;
-        private string _url;
         private EmbedImage? _image;
         private EmbedThumbnail? _thumbnail;
         private List<EmbedFieldBuilder> _fields;
@@ -70,26 +69,14 @@ namespace Discord
         /// <summary> Gets or sets the URL of an <see cref="Embed"/>. </summary>
         /// <exception cref="ArgumentException" accessor="set">Url is not a well-formed <see cref="Uri"/>.</exception>
         /// <returns> The URL of the embed.</returns>
-        public string Url
-        {
-            get => _url;
-            set
-            {
-                if (!value.IsNullOrUri()) throw new ArgumentException(message: "Url must be a well-formed URI.", paramName: nameof(Url));
-                _url = value;
-            }
-        }
+        public string Url { get; set; }
         /// <summary> Gets or sets the thumbnail URL of an <see cref="Embed"/>. </summary>
         /// <exception cref="ArgumentException" accessor="set">Url is not a well-formed <see cref="Uri"/>.</exception>
         /// <returns> The thumbnail URL of the embed.</returns>
         public string ThumbnailUrl
         {
             get => _thumbnail?.Url;
-            set
-            {
-                if (!value.IsNullOrUri()) throw new ArgumentException(message: "Url must be a well-formed URI.", paramName: nameof(ThumbnailUrl));
-                _thumbnail = new EmbedThumbnail(value, null, null, null);
-            }
+            set => _thumbnail = new EmbedThumbnail(value, null, null, null);
         }
         /// <summary> Gets or sets the image URL of an <see cref="Embed"/>. </summary>
         /// <exception cref="ArgumentException" accessor="set">Url is not a well-formed <see cref="Uri"/>.</exception>
@@ -97,11 +84,7 @@ namespace Discord
         public string ImageUrl
         {
             get => _image?.Url;
-            set
-            {
-                if (!value.IsNullOrUri()) throw new ArgumentException(message: "Url must be a well-formed URI.", paramName: nameof(ImageUrl));
-                _image = new EmbedImage(value, null, null, null);
-            }
+            set => _image = new EmbedImage(value, null, null, null);
         }
 
         /// <summary> Gets or sets the list of <see cref="EmbedFieldBuilder"/> of an <see cref="Embed"/>. </summary>
@@ -553,8 +536,6 @@ namespace Discord
     public class EmbedAuthorBuilder
     {
         private string _name;
-        private string _url;
-        private string _iconUrl;
         /// <summary>
         ///     Gets the maximum author name length allowed by Discord.
         /// </summary>
@@ -585,15 +566,7 @@ namespace Discord
         /// <returns>
         ///     The URL of the author field.
         /// </returns>
-        public string Url
-        {
-            get => _url;
-            set
-            {
-                if (!value.IsNullOrUri()) throw new ArgumentException(message: "Url must be a well-formed URI.", paramName: nameof(Url));
-                _url = value;
-            }
-        }
+        public string Url { get; set; }
         /// <summary>
         ///     Gets or sets the icon URL of the author field.
         /// </summary>
@@ -601,15 +574,7 @@ namespace Discord
         /// <returns>
         ///     The icon URL of the author field.
         /// </returns>
-        public string IconUrl
-        {
-            get => _iconUrl;
-            set
-            {
-                if (!value.IsNullOrUri()) throw new ArgumentException(message: "Url must be a well-formed URI.", paramName: nameof(IconUrl));
-                _iconUrl = value;
-            }
-        }
+        public string IconUrl { get; set; }
 
         /// <summary>
         ///     Sets the name of the author field.
@@ -671,7 +636,6 @@ namespace Discord
     public class EmbedFooterBuilder
     {
         private string _text;
-        private string _iconUrl;
 
         /// <summary>
         ///     Gets the maximum footer length allowed by Discord.
@@ -703,15 +667,7 @@ namespace Discord
         /// <returns>
         ///     The icon URL of the footer field.
         /// </returns>
-        public string IconUrl
-        {
-            get => _iconUrl;
-            set
-            {
-                if (!value.IsNullOrUri()) throw new ArgumentException(message: "Url must be a well-formed URI.", paramName: nameof(IconUrl));
-                _iconUrl = value;
-            }
-        }
+        public string IconUrl { get; set; }
 
         /// <summary>
         ///     Sets the name of the footer field.

src/Discord.Net.Core/Extensions/StringExtensions.cs

@@ -1,10 +0,0 @@
-using System;
-
-namespace Discord
-{
-    internal static class StringExtensions
-    {
-        public static bool IsNullOrUri(this string url) =>
-            string.IsNullOrEmpty(url) || Uri.IsWellFormedUriString(url, UriKind.Absolute);
-    }
-}

test/Discord.Net.Tests.Unit/EmbedBuilderTests.cs

@@ -190,42 +190,6 @@ namespace Discord
             Assert.Equal(result.ThumbnailUrl, url);
         }
 
-        /// <summary>
-        ///     Tests that invalid urls throw an <see cref="ArgumentException"/>.
-        /// </summary>
-        /// <param name="url">The url to set.</param>
-        [Theory]
-        [InlineData(" ")]
-        [InlineData("not a url")]
-        public void Url_Invalid(string url)
-        {
-            Assert.Throws<ArgumentException>(()
-                => new EmbedBuilder()
-                .WithUrl(url));
-            Assert.Throws<ArgumentException>(()
-                => new EmbedBuilder()
-                .WithImageUrl(url));
-            Assert.Throws<ArgumentException>(()
-                => new EmbedBuilder()
-                .WithThumbnailUrl(url));
-
-            Assert.Throws<ArgumentException>(() =>
-            {
-                var b = new EmbedBuilder();
-                b.Url = url;
-            });
-            Assert.Throws<ArgumentException>(() =>
-            {
-                var b = new EmbedBuilder();
-                b.ImageUrl = url;
-            });
-            Assert.Throws<ArgumentException>(() =>
-            {
-                var b = new EmbedBuilder();
-                b.ThumbnailUrl = url;
-            });
-        }
-
         /// <summary>
         ///     Tests the value of the <see cref="EmbedBuilder.Length"/> property when there are no fields set.
         /// </summary>
@@ -343,24 +307,6 @@ namespace Discord
             Assert.Equal(name, footer.Text);
         }
         /// <summary>
-        ///     Tests that invalid URLs throw an <see cref="ArgumentException"/>.
-        /// </summary>
-        [Fact]
-        public void EmbedFooterBuilder_InvalidURL()
-        {
-            IEnumerable<string> InvalidUrls()
-            {
-                yield return "not a url";
-            }
-            foreach (var url in InvalidUrls())
-            {
-                Assert.Throws<ArgumentException>(() =>
-                {
-                    new EmbedFooterBuilder().WithIconUrl(url);
-                });
-            }
-        }
-        /// <summary>
         ///     Tests that invalid text throws an <see cref="ArgumentException"/>.
         /// </summary>
         [Fact]