From 43719eba8b6bb280c11263845c7a23e295463df9 Mon Sep 17 00:00:00 2001
From: Paul-Christian Volkmer <code@pcvolkmer.de>
Date: Sun, 29 Sep 2024 01:24:56 +0200
Subject: [PATCH] Add GIF image format

---
 idicon.go         | 4 ++++
 static/index.html | 1 +
 2 files changed, 5 insertions(+)

diff --git a/idicon.go b/idicon.go
index e42cc07..42a8157 100644
--- a/idicon.go
+++ b/idicon.go
@@ -7,6 +7,7 @@ import (
 	"github.com/BurntSushi/toml"
 	"github.com/gorilla/mux"
 	"idicon/icons"
+	"image/gif"
 	"image/jpeg"
 	"image/png"
 	"log"
@@ -85,6 +86,9 @@ func requestHandler(w http.ResponseWriter, r *http.Request) {
 	} else if ct == "jpeg" || cth == "image/jpeg" {
 		w.Header().Add("Content-Type", "image/jpeg")
 		err = jpeg.Encode(w, iconGenerator.GenIcon(id, size), nil)
+	} else if ct == "gif" || cth == "image/gif" {
+		w.Header().Add("Content-Type", "image/gif")
+		err = gif.Encode(w, iconGenerator.GenIcon(id, size), nil)
 	} else {
 		w.Header().Add("Content-Type", "image/png")
 		err = png.Encode(w, iconGenerator.GenIcon(id, size))
diff --git a/static/index.html b/static/index.html
index 4ef8d90..30b734d 100644
--- a/static/index.html
+++ b/static/index.html
@@ -190,6 +190,7 @@
                 <select id="contenttype" onchange="newcontenttype(this.value)">
                     <option value="png" selected>PNG</option>
                     <option value="jpeg">JPEG</option>
+                    <option value="gif">GIF</option>
                     <option value="svg">SVG</option>
                 </select>
             </div>