From 28a021483c13e974e00b6159f0653b0727df9d10 Mon Sep 17 00:00:00 2001
From: Matthias Baumgartner <dev@igsor.net>
Date: Thu, 2 Mar 2023 16:40:00 +0100
Subject: prohibit certain characters in URI and ensure URIs in bsfs.graph

---
 bsfs/utils/uri.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'bsfs/utils/uri.py')

diff --git a/bsfs/utils/uri.py b/bsfs/utils/uri.py
index 0693017..5755a6e 100644
--- a/bsfs/utils/uri.py
+++ b/bsfs/utils/uri.py
@@ -4,6 +4,8 @@ import re
 import typing
 
 # constants
+RX_CHARS = re.compile(r'[<>" {}|\\^]')
+
 RX_URI = re.compile(r'''
     ^
     (?:(?P<scheme>[^:/?#]+):)?      # scheme, ://-delimited
@@ -77,6 +79,9 @@ class URI(str):
         no claim about the validity of an URI!
 
         """
+        # check characters
+        if RX_CHARS.search(query) is not None:
+            return False
         # check uri
         parts = RX_URI.match(query)
         if parts is not None:
@@ -227,9 +232,6 @@ class URI(str):
 
     # overload formatting methods
 
-    def format(self, *args, **kwargs) -> 'URI':
-        return URI(super().format(*args, **kwargs))
-
     def __mod__(self, *args) -> 'URI':
         return URI(super().__mod__(*args))
 
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