[refactor] use nh3 instead than bleach to prepare input_str

app.py

@@ -3,7 +3,7 @@ import os
 import re
 import sys
 
-import bleach
+import nh3
 import cv2
 import gradio as gr
 import numpy as np
@@ -206,7 +206,31 @@ Preprint Paper
 ## to be implemented
 def inference(input_str, input_image):
     ## filter out special chars
-    input_str = bleach.clean(input_str)
+
+    input_str = nh3.clean(
+        input_str,
+        tags={
+            "a",
+            "abbr",
+            "acronym",
+            "b",
+            "blockquote",
+            "code",
+            "em",
+            "i",
+            "li",
+            "ol",
+            "strong",
+            "ul",
+        },
+        attributes={
+            "a": {"href", "title"},
+            "abbr": {"title"},
+            "acronym": {"title"},
+        },
+        url_schemes={"http", "https", "mailto"},
+        link_rel=None,
+    )
 
     print("input_str: ", input_str, "input_image: ", input_image)
 
@@ -328,4 +352,4 @@ demo = gr.Interface(
 )
 
 demo.queue()
-demo.launch()
+demo.launch()