fix handling of illegal characters in header values

2021-03-12 14:47:28 +01:00
parent 7adbd8d76b
commit c05593bfae
2 changed files with 4 additions and 7 deletions
--- a/pymodmilter/init.py
+++ b/pymodmilter/init.py
@@ -279,8 +279,8 @@ class ModifyMilter(Milter.Base):
    def header(self, field, value):
        try:
            # remove surrogates
-            field = field.encode("ascii", errors="replace")
-            value = value.encode("ascii", errors="replace")
+            field = field.encode("ascii", errors="surrogateescape")
+            value = value.encode("ascii", errors="surrogateescape")

            self._fp.feed(field + b": " + value + b"\r\n")
        except Exception as e: