[Python-checkins] bpo-37404: Raising value error if an SSLSocket is passed to asyncio functions (GH-16457)

[Miss Islington (bot)]

https://github.com/python/cpython/commit/892f9e0777f262d366d4747a54c33a1c15a49da6
commit: 892f9e0777f262d366d4747a54c33a1c15a49da6
branch: master
author: idomic <michael.ido at gmail.com>
committer: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
date: 2019-12-07T03:52:35-08:00
summary:

 bpo-37404: Raising value error if an SSLSocket is passed to asyncio functions (GH-16457)



https://bugs.python.org/issue37404

files:
A Misc/NEWS.d/next/Build/2019-12-01-21-45-24.bpo-37404.cNsA7S.rst
M Lib/asyncio/selector_events.py

diff --git a/Lib/asyncio/selector_events.py b/Lib/asyncio/selector_events.py
index 00e3244bfb294..e1abf5118619c 100644
--- a/Lib/asyncio/selector_events.py
+++ b/Lib/asyncio/selector_events.py
@@ -348,6 +348,8 @@ def remove_writer(self, fd):
         The maximum amount of data to be received at once is specified by
         nbytes.
         """
+        if isinstance(sock, ssl.SSLSocket):
+            raise TypeError("Socket cannot be of type SSLSocket")
         if self._debug and sock.gettimeout() != 0:
             raise ValueError("the socket must be non-blocking")
         try:
@@ -386,6 +388,8 @@ def _sock_recv(self, fut, sock, n):
         The received data is written into *buf* (a writable buffer).
         The return value is the number of bytes written.
         """
+        if isinstance(sock, ssl.SSLSocket):
+            raise TypeError("Socket cannot be of type SSLSocket")
         if self._debug and sock.gettimeout() != 0:
             raise ValueError("the socket must be non-blocking")
         try:
@@ -425,6 +429,8 @@ def _sock_recv_into(self, fut, sock, buf):
         raised, and there is no way to determine how much data, if any, was
         successfully processed by the receiving end of the connection.
         """
+        if isinstance(sock, ssl.SSLSocket):
+            raise TypeError("Socket cannot be of type SSLSocket")
         if self._debug and sock.gettimeout() != 0:
             raise ValueError("the socket must be non-blocking")
         try:
@@ -472,6 +478,8 @@ def _sock_sendall(self, fut, sock, view, pos):
 
         This method is a coroutine.
         """
+        if isinstance(sock, ssl.SSLSocket):
+            raise TypeError("Socket cannot be of type SSLSocket")
         if self._debug and sock.gettimeout() != 0:
             raise ValueError("the socket must be non-blocking")
 
@@ -533,6 +541,8 @@ def _sock_connect_cb(self, fut, sock, address):
         object usable to send and receive data on the connection, and address
         is the address bound to the socket on the other end of the connection.
         """
+        if isinstance(sock, ssl.SSLSocket):
+            raise TypeError("Socket cannot be of type SSLSocket")
         if self._debug and sock.gettimeout() != 0:
             raise ValueError("the socket must be non-blocking")
         fut = self.create_future()
diff --git a/Misc/NEWS.d/next/Build/2019-12-01-21-45-24.bpo-37404.cNsA7S.rst b/Misc/NEWS.d/next/Build/2019-12-01-21-45-24.bpo-37404.cNsA7S.rst
new file mode 100644
index 0000000000000..067fc9d3f189d
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2019-12-01-21-45-24.bpo-37404.cNsA7S.rst
@@ -0,0 +1,2 @@
+:mod:`asyncio` now raises :exc:`TyperError` when calling incompatible methods
+with an :class:`ssl.SSLSocket` socket.  Patch by Ido Michael.