From 669b39927b7fb48bd7464fc2bb7497ed8c75efb6 Mon Sep 17 00:00:00 2001
From: Andrea Princic <48788808+Princic-1837592@users.noreply.github.com>
Date: Tue, 6 Dec 2022 20:09:31 +0100
Subject: [PATCH] Escape text inside entity when building unparsed text (#1156)

---
 pyrogram/parser/html.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pyrogram/parser/html.py b/pyrogram/parser/html.py
index 4afeea2b..c574e6ff 100644
--- a/pyrogram/parser/html.py
+++ b/pyrogram/parser/html.py
@@ -233,8 +233,10 @@ class HTML:
         while i < len(entities):
             i += recursive(i)
 
+        last_offset = entities_offsets[-1][1]
         # no need to sort, but still add entities starting from the end
         for entity, offset in reversed(entities_offsets):
-            text = text[:offset] + entity + text[offset:]
+            text = text[:offset] + entity + html.escape(text[offset:last_offset]) + text[last_offset:]
+            last_offset = offset
 
         return utils.remove_surrogates(text)