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-rw-r--r--netlib/tcp.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/netlib/tcp.py b/netlib/tcp.py
index c355cfdd..b3171a1c 100644
--- a/netlib/tcp.py
+++ b/netlib/tcp.py
@@ -403,6 +403,7 @@ class _Connection(object):
cipher_list=None,
alpn_protos=None,
alpn_select=None,
+ alpn_select_callback=None,
):
"""
Creates an SSL Context.
@@ -457,7 +458,7 @@ class _Connection(object):
if alpn_protos is not None:
# advertise application layer protocols
context.set_alpn_protos(alpn_protos)
- elif alpn_select is not None:
+ elif alpn_select is not None and alpn_select_callback is None:
# select application layer protocol
def alpn_select_callback(conn_, options):
if alpn_select in options:
@@ -465,6 +466,10 @@ class _Connection(object):
else: # pragma no cover
return options[0]
context.set_alpn_select_callback(alpn_select_callback)
+ elif alpn_select_callback is not None and alpn_select is None:
+ context.set_alpn_select_callback(alpn_select_callback)
+ elif alpn_select_callback is not None and alpn_select is not None:
+ raise NetLibError("ALPN error: only define alpn_select (string) OR alpn_select_callback (method).")
return context