From e1412eef528a905e8cef78749a55104551182385 Mon Sep 17 00:00:00 2001
From: Mia Winter <mia@miawinter.de>
Date: Sat, 3 Feb 2024 19:45:46 +0100
Subject: [PATCH] Added proxy for favicone api

---
 Wave/Components/UserLinkComponent.razor |  3 ++-
 Wave/Controllers/ApiProxy.cs            | 31 +++++++++++++++++++++++++
 Wave/Program.cs                         |  1 +
 3 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 Wave/Controllers/ApiProxy.cs

diff --git a/Wave/Components/UserLinkComponent.razor b/Wave/Components/UserLinkComponent.razor
index b4738e4..ea98ec6 100644
--- a/Wave/Components/UserLinkComponent.razor
+++ b/Wave/Components/UserLinkComponent.razor
@@ -1,7 +1,8 @@
 @using Wave.Data
+@using System.Net
 
 <a href="@Link.UrlString" rel="me" target="_blank" title="@Link.Url.Host" @attributes="AdditionalAttributes">
-	<img src="@("https://favicone.com/" + Link.Url.Host + "?s=32")" alt="" width="32" height="32" class="w-5 h-5" />
+	<img src="@("/api/proxy/favicon/" + WebUtility.UrlEncode(Link.Url.Host))" alt="" width="32" height="32" class="w-5 h-5" />
 	@(Link.Url.Host.LastIndexOf('.') > -1 ? Link.Url.Host[..Link.Url.Host.LastIndexOf('.')] : Link.Url.Host)
 </a>
 
diff --git a/Wave/Controllers/ApiProxy.cs b/Wave/Controllers/ApiProxy.cs
new file mode 100644
index 0000000..e562f0c
--- /dev/null
+++ b/Wave/Controllers/ApiProxy.cs
@@ -0,0 +1,31 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace Wave.Controllers;
+
+[ApiController]
+[Route("/api/proxy")]
+public class ApiProxy(HttpClient client) : ControllerBase {
+	private HttpClient Client { get; } = client;
+
+	[Route("favicon/{host}")]
+	[Produces("image/x-icon")]
+	[ResponseCache(Duration = 60*60*24*30, Location = ResponseCacheLocation.Any)]
+	[ProducesResponseType(StatusCodes.Status200OK)]
+	[ProducesResponseType(StatusCodes.Status404NotFound)]
+	public async Task GetFavicon(string host, [FromQuery] int size = 32) {
+		var response = await DoProxy("https://favicone.com/" + host + "?s=" + size);
+
+		if (!response.IsSuccessStatusCode) {
+			Response.StatusCode = StatusCodes.Status404NotFound;
+			return;
+		}
+
+		byte[] data = await response.Content.ReadAsByteArrayAsync();
+		await Response.BodyWriter.WriteAsync(data);
+	}
+
+
+	private async Task<HttpResponseMessage> DoProxy(string url) {
+		return await Client.SendAsync(new HttpRequestMessage(HttpMethod.Get, url));
+	}
+}
\ No newline at end of file
diff --git a/Wave/Program.cs b/Wave/Program.cs
index 17d483f..233f6d3 100644
--- a/Wave/Program.cs
+++ b/Wave/Program.cs
@@ -101,6 +101,7 @@
     options.ResourcesPath = "Resources";
 });
 builder.Services.AddScoped<ImageService>();
+builder.Services.AddHttpClient();
 
 builder.Services.Configure<Customization>(builder.Configuration.GetSection(nameof(Customization)));
 builder.Services.AddCascadingValue("TitlePrefix",