Implement a to_html method for FormattedText (#208)

* Implement a to_html method for FormattedText

Also fix a small issue with ansi formatting where it duplicated
text.

* cargo fmt

* Make format conversion generic

* cargo lint and fmt

* Fix ascii conversion cleanup

* Implement suggested changes

* format, improve sanitization, add xss test

---------

Co-authored-by: mat <git@matdoes.dev>

1 files changed, 34 insertions, 1 deletions

diff --git a/azalea-chat/src/text_component.rs b/azalea-chat/src/text_component.rs
index db1b4edf..7332adfa 100644
--- a/azalea-chat/src/text_component.rs
+++ b/azalea-chat/src/text_component.rs
@@ -146,7 +146,7 @@ mod tests {
     use crate::style::Ansi;
 
     #[test]
-    fn test_hypixel_motd() {
+    fn test_hypixel_motd_ansi() {
         let component =
             TextComponent::new("§aHypixel Network  §c[1.8-1.18]\n§b§lHAPPY HOLIDAYS".to_string())
                 .get();
@@ -164,6 +164,39 @@ mod tests {
     }
 
     #[test]
+    fn test_hypixel_motd_html() {
+        let component =
+            TextComponent::new("§aHypixel Network  §c[1.8-1.18]\n§b§lHAPPY HOLIDAYS".to_string())
+                .get();
+
+        assert_eq!(
+            component.to_html(),
+            format!(
+                "{GREEN}Hypixel Network  {END_SPAN}{RED}[1.8-1.18]<br>{END_SPAN}{BOLD_AQUA}HAPPY HOLIDAYS{END_SPAN}",
+                END_SPAN = "</span>",
+                GREEN = "<span style=\"color: #55FF55;\">",
+                RED = "<span style=\"color: #FF5555;\">",
+                BOLD_AQUA = "<span style=\"color: #55FFFF;font-weight: bold;\">",
+            )
+        );
+    }
+
+    #[test]
+    fn test_xss_html() {
+        let component = TextComponent::new("§a<b>&\n§b</b>".to_string()).get();
+
+        assert_eq!(
+            component.to_html(),
+            format!(
+                "{GREEN}&lt;b&gt;&amp;<br>{END_SPAN}{AQUA}&lt;/b&gt;{END_SPAN}",
+                END_SPAN = "</span>",
+                GREEN = "<span style=\"color: #55FF55;\">",
+                AQUA = "<span style=\"color: #55FFFF;\">",
+            )
+        );
+    }
+
+    #[test]
     fn test_legacy_color_code_to_component() {
         let component = TextComponent::new("§lHello §r§1w§2o§3r§4l§5d".to_string()).get();
         assert_eq!(