define explicit list of characters to encode

amplitude · Sep 18, 2017 · 08ae8b0 · 08ae8b0
1 parent 899a3da
commit 08ae8b0
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Amplitude/Amplitude.m b/Amplitude/Amplitude.m
@@ -1535,7 +1535,8 @@ - (NSString*)md5HexDigest:(NSString*)input
 
 - (NSString*)urlEncodeString:(NSString*) string
 {
-    return [string stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
+    NSCharacterSet * allowedCharacters = [[NSCharacterSet characterSetWithCharactersInString:@":/?#[]@!$ &'()*+,;=\"<>%{}|\\^~`"] invertedSet];
+    return [string stringByAddingPercentEncodingWithAllowedCharacters:allowedCharacters];
 }
 
 - (NSDate*) currentTime