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Allow only ascii characters

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Saptak S 2024-03-09 00:13:40 +05:30
parent ad61786b0f
commit 2ef15395d4
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1 changed files with 19 additions and 10 deletions
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15
cli/onionshare_cli/web/chat_mode.py
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@ -49,6 +49,15 @@ class ChatModeWeb:
self.define_routes() self.define_routes()
def remove_unallowed_characters(self, text): def remove_unallowed_characters(self, text):
"""
Sanitize username to remove unwanted characters.
Allowed characters right now are:
- all ASCII numbers
- all ASCII letters
- dash, underscore and single space
"""
def allowed_character(ch):
allowed_unicode_categories = [ allowed_unicode_categories = [
'L', # All letters 'L', # All letters
'N', # All numbers 'N', # All numbers
@ -58,9 +67,9 @@ class ChatModeWeb:
'_', # underscore '_', # underscore
' ', # single space ' ', # single space
] ]
return (
def allowed_character(ch): unicodedata.category(ch)[0] in allowed_unicode_categories and ord(ch) < 128
return unicodedata.category(ch)[0] in allowed_unicode_categories or ch in allowed_special_characters ) or ch in allowed_special_characters
return "".join( return "".join(
ch for ch in text if allowed_character(ch) ch for ch in text if allowed_character(ch)