Mailman 3 March 2012 - Twisted

[Twisted-Python] Non-PDF version of the Twisted book?
by Daniel Bryan March 2, 2012

March 2, 2012

I'm new to Twisted and very interested in learning more, and I learn best with something like a book. I came across this: *twisted*matrix.com/documents/current/core/howto/*book*.pdf I was wondering if there's a copy of it available in a form other than PDF? I'd like to read it on my Kindle, so if there's a version in an eBook format or even just HTML that'd be superb!

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[Twisted-Python] Twisted/PyPy rocks!
by Tobias Oberstein March 1, 2012

March 1, 2012

Just wanted to say: PyPy running Twisted rocks! Works just out of the box: PyPy, Twisted + Autobahn. Speedups of up to multiple times .. without a single code change. Btw: * Tornado seems to be unstable on PyPy .. at least in my testing (sporadic segfaults) * have been able to outperform node.js and others (incl. JVM) based WebSocket implementations * only beaten by websocket++ - a C++/ASIO based implementation. expected. == Couple of points: * Have been able to use poll reactor on Linux, but epoll doesnt work .. is that expected? Maybe because the epoll reactor implementation uses Twisted own C wrapper instead of the - only recently - available one in Python standard lib? * I will test PyPy with kqueue on FreeBSD .. * Are there regular buildslaves running trial on PyPy? Does that make sense? \Tobias

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[Twisted-Python] connectionMade, TLS and DoS protection timeouts
by Tobias Oberstein March 1, 2012

March 1, 2012

I was wondering how I could protect a Twisted server from evil clients initiating, but never completing a TLS handshake. connectionMade is only called when the TLS handshake has completed, right? When doing listenSSL, is there a hook which is fired right after the TCP handshake is complete, before the TLS handshake begins, so that I can setup a callLater/dropConnection timeout? This is the piece I am missing, since for TCP-level protection (Syn floods etc), I can use kernel parameters / kernel packet filtering, and for app-level protection (I do WebSockets .. which also has a handshake) I can timeout that. I like to do above without requiring a frontend TLS terminator / firewall .. Thanks! \Tobias

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[Twisted-Python] ProcessMonitor stderr stdout
by Kevin McIntyre March 1, 2012

March 1, 2012

Newbie question: I'm calling addProcess and everything works well, but I'm trying to understand how to capture/handle stderr stdout for that spawned process. -- Kevin McIntyre | Software Engineer | *Green Charge Networks* Cell 718-249-5058 | kmcintyre(a)greenchargenet.com | www.greenchargenet.com

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