Simply allow read() to fail with timeout.

Author: serhiy-storchaka

Lib/http/server.py

@@ -1290,14 +1290,16 @@ def run_cgi(self):
             if self.command.lower() == "post" and nbytes > 0:
                 cursize = 0
                 data = self.rfile.read(min(nbytes, _MIN_READ_BUF_SIZE))
-                while (len(data) < nbytes and len(data) != cursize and
-                       select.select([self.rfile._sock], [], [], self.timeout)[0]):
+                while len(data) < nbytes and len(data) != cursize:
                     cursize = len(data)
                     # This is a geometric increase in read size (never more
-                    # than doubling our the current length of data per loop
+                    # than doubling out the current length of data per loop
                     # iteration).
                     delta = min(cursize, nbytes - cursize)
-                    data += self.rfile.read(delta)
+                    try:
+                        data += self.rfile.read(delta)
+                    except TimeoutError:
+                        break
             else:
                 data = None
             # throw away additional data [see bug #427345]