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-rw-r--r--Lib/email/_header_value_parser.py12
1 files changed, 11 insertions, 1 deletions
diff --git a/Lib/email/_header_value_parser.py b/Lib/email/_header_value_parser.py
index 87d8f684f51..f4a01f19f07 100644
--- a/Lib/email/_header_value_parser.py
+++ b/Lib/email/_header_value_parser.py
@@ -791,6 +791,8 @@ class AngleAddr(TokenList):
for x in self:
if x.token_type == 'addr-spec':
return x.addr_spec
+ else:
+ return '<>'
class ObsRoute(TokenList):
@@ -1829,6 +1831,14 @@ def get_angle_addr(value):
"expected angle-addr but found '{}'".format(value))
angle_addr.append(ValueTerminal('<', 'angle-addr-start'))
value = value[1:]
+ # Although it is not legal per RFC5322, SMTP uses '<>' in certain
+ # circumstances.
+ if value[0] == '>':
+ angle_addr.append(ValueTerminal('>', 'angle-addr-end'))
+ angle_addr.defects.append(errors.InvalidHeaderDefect(
+ "null addr-spec in angle-addr"))
+ value = value[1:]
+ return angle_addr, value
try:
token, value = get_addr_spec(value)
except errors.HeaderParseError:
@@ -1838,7 +1848,7 @@ def get_angle_addr(value):
"obsolete route specification in angle-addr"))
except errors.HeaderParseError:
raise errors.HeaderParseError(
- "expected addr-spec or but found '{}'".format(value))
+ "expected addr-spec or obs-route but found '{}'".format(value))
angle_addr.append(token)
token, value = get_addr_spec(value)
angle_addr.append(token)