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Commit 7ce24fc1 authored by Tatsuhiro Tsujikawa's avatar Tatsuhiro Tsujikawa
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python: rewritten simple SPDY server. Add npn_get_version() helper function.

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doc/python.rst
View file @ 7ce24fc1
......@@ -543,6 +543,20 @@ Session Objects
:py:class:`StreamClosedError` will be raised if the stream is
already closed or does not exist.
Helper Functions
----------------
.. py:function:: npn_get_version(proto)
Returns SPDY version which spdylay library supports from the given
protocol name. The *proto* is the unicode string to the protocol
name. Currently, ``spdy/2`` and ``spdy/3`` are supported. The
returned nonzero SPDY version can be passed as the version
argument in :py:class:`Session` constructor.
This function returns nonzero SPDY version if it succeeds, or 0.
Data Provider Objects
---------------------
......
python/cspdylay.pxd
View file @ 7ce24fc1
......@@ -322,3 +322,6 @@ cdef extern from 'spdylay/spdylay.h':
int spdylay_submit_window_update(spdylay_session *session,
int32_t stream_id,
int32_t delta_window_size)
uint16_t spdylay_npn_get_version(unsigned char *proto,
size_t protolen)
python/spdylay.pyx
View file @ 7ce24fc1
This diff is collapsed.
python/spdyserv.py
View file @ 7ce24fc1
#!/usr/bin/env python
# The example SPDY server. You need Python 3.3 or later because we
# use TLS NPN. Put private key and certificate file in the current
# working directory.
import socket
import threading
import socketserver
import ssl
import io
import select
# The example SPDY server. Python 3.3 or later is required because TLS
# NPN is used in spdylay.ThreadedSPDYServer. Put private key and
# certificate file in the current working directory.
import spdylay
......@@ -18,150 +11,32 @@ KEY_FILE='server.key'
# certificate file
CERT_FILE='server.crt'
def send_cb(session, data):
ssctrl = session.user_data
wlen = ssctrl.sock.send(data)
return wlen
def read_cb(session, stream_id, length, read_ctrl, source):
data = source.read(length)
if not data:
read_ctrl.flags = spdylay.READ_EOF
return data
class MySPDYRequestHandler(spdylay.BaseSPDYRequestHandler):
def on_ctrl_recv_cb(session, frame):
ssctrl = session.user_data
if frame.frame_type == spdylay.SYN_STREAM:
stctrl = StreamCtrl(frame.stream_id)
stctrl.headers.extend(frame.nv)
ssctrl.streams[frame.stream_id] = stctrl
def do_GET(self):
if self.path == '/notfound':
self.send_error(404)
return
def on_stream_close_cb(session, stream_id, status_code):
ssctrl = session.user_data
if stream_id in ssctrl.streams:
del ssctrl.streams[stream_id]
self.send_response(200)
self.send_header('conten-type', 'text/html; charset=UTF-8')
def on_request_recv_cb(session, stream_id):
ssctrl = session.user_data
if stream_id in ssctrl.streams:
stctrl = ssctrl.streams[stream_id]
for name, value in stctrl.headers:
if name == 'user-agent':
user_agent = value
break
else:
user_agent = ''
html = '''\
content = '''\
<html>
<head><title>SPDY FTW</title></head>
<body>
<h1>SPDY FTW</h1>
<p>The age of HTTP/1.1 is over. The time of SPDY has come.</p>
<p>Your browser {} supports SPDY.</p>
</body>
</html>
'''.format(user_agent)
data_prd = spdylay.DataProvider(io.BytesIO(bytes(html, 'utf-8')),
read_cb)
stctrl.data_prd = data_prd
nv = [(':status', '200 OK'),
(':version', 'HTTP/1.1'),
('server', 'python-spdylay')]
session.submit_response(stream_id, nv, data_prd)
class StreamCtrl:
def __init__(self, stream_id):
self.stream_id = stream_id
self.data_prd = None
self.headers = []
class SessionCtrl:
def __init__(self, sock):
self.sock = sock
self.streams = {}
class ThreadedSPDYRequestHandler(socketserver.BaseRequestHandler):
def handle(self):
ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
ctx.load_cert_chain(CERT_FILE, KEY_FILE)
ctx.set_npn_protocols(['spdy/3', 'spdy/2'])
sock = ctx.wrap_socket(self.request, server_side=True,
do_handshake_on_connect=False)
sock.setblocking(False)
</html>'''.encode('UTF-8')
while True:
try:
sock.do_handshake()
break
except ssl.SSLWantReadError as e:
select.select([sock], [], [])
except ssl.SSLWantWriteError as e:
select.select([], [sock], [])
if sock.selected_npn_protocol() == 'spdy/3':
version = spdylay.PROTO_SPDY3
elif sock.selected_npn_protocol() == 'spdy/2':
version = spdylay.PROTO_SPDY2
else:
return
ssctrl = SessionCtrl(sock)
session = spdylay.Session(spdylay.SERVER,
version,
send_cb=send_cb,
on_ctrl_recv_cb=on_ctrl_recv_cb,
on_stream_close_cb=on_stream_close_cb,
on_request_recv_cb=on_request_recv_cb,
user_data=ssctrl)
session.submit_settings(\
spdylay.FLAG_SETTINGS_NONE,
[(spdylay.SETTINGS_MAX_CONCURRENT_STREAMS,
spdylay.ID_FLAG_SETTINGS_NONE,
100)])
while session.want_read() or session.want_write():
want_read = want_write = False
try:
data = sock.recv(4096)
if data:
session.recv(data)
else:
break
except ssl.SSLWantReadError:
want_read = True
except ssl.SSLWantWriteError:
want_write = True
try:
session.send()
except ssl.SSLWantReadError:
want_read = True
except ssl.SSLWantWriteError:
want_write = True
if want_read or want_write:
select.select([sock] if want_read else [],
[sock] if want_write else [],
[])
class ThreadedSPDYServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
def __init__(self, svaddr, handler):
self.allow_reuse_address = True
socketserver.TCPServer.__init__(self, svaddr, handler)
self.wfile.write(content)
if __name__ == "__main__":
# Port 0 means to select an arbitrary unused port
HOST, PORT = "localhost", 3000
server = ThreadedSPDYServer((HOST, PORT), ThreadedSPDYRequestHandler)
ip, port = server.server_address
# Start a thread with the server -- that thread will then start one
# more thread for each request
server_thread = threading.Thread(target=server.serve_forever)
# Exit the server thread when the main thread terminates
#server_thread.daemon = True
server_thread.start()
server = spdylay.ThreadedSPDYServer((HOST, PORT),
MySPDYRequestHandler,
cert_file=CERT_FILE,
key_file=KEY_FILE)
server.start()
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