带有 gevent-websocket 的策略服务器

Question

正在尝试让 gevent-websocket 正常工作，但它没有连接到我的闪存规范策略服务器。我的policy.py如下：

from gevent.server import StreamServer

policy = """<?xml version="1.0" encoding="UTF-8"?>
<cross-domain-policy>
  <site-control permitted-cross-domain-policies="master-only"/>
 <allow-access-from domain="*" to-ports="*" secure="false"/>
</cross-domain-policy>\0"""

def handle(sock, address):
s = sock.makefile()
while True:
    msg = s.readline()
    if not msg:
        print("Client disconnected (%s:%s)" % address)
        break
    else:
        sock.sendall(policy)
        print("Client connected, served policy (%s:%s)" % address)

server = StreamServer(('0.0.0.0', 843), handle)
server.serve_forever()

但是使用websocket我得到：

[WebSocket] policy file: xmlsocket://localhost:843
[WebSocket] cannot connect to Web Socket server at ws://localhost:8065 (SecurityError: Error #2048) make sure the server is running and Flash socket policy file is correctly placed
[WebSocket] close

Answer 1

readline() 方法在这里不起作用，因为 Flash 发送一个 '\0'，该消息不以换行符终止。

试试这个而不是 readline()：

expected = '<policy-file-request>'
s.read(len(expected))