Mailman 3 December 2006 - Twisted

[Twisted-Python] Simple PB Example
by Koen Bok Dec. 25, 2006

Dec. 25, 2006

Dear all, Happy christmas! I am trying to get the hang of Twisted and while the documentation is pretty clear I cannot figure out some basic things. I tried to build a little project to practise. I would love some hints, and I am not afraid to read. Basically I want to write a simple server (Public Broker) which keeps a list of all connected clients. When one client sends a message to the server, I want the server to relay that message to other specific clients, but only those (yes basically an IM server). So let's say I have a server and three clients: server: Hello, I am here! client #1: Yep, me too can I connect, I'm a girl? server: Sure, I'll add you to my clients list! client #2: Can I go too, I'm a guy? server: Yep, you are client number two on my list... client #3: Me too, me too, I am a guy! server: Fine, but now let's do some stuff... client #2: Server, can you please tell all clients that are girls that I'd like to see em after this session? server: Let's find out who are female clients in my list and send them the message. Consider it done! client #1: Thanks for the message, I'll see if I have time... In the end client #2 would date client #1...

1 0

Re: [Twisted-Python] Weekly Bug Summary
by Eric Mangold Dec. 24, 2006

Dec. 24, 2006

Why is #2291 shown twice under the "New / Reopened Bugs" section? -Eric On Sun, 24 Dec 2006 00:05:03 -0600, <exarkun(a)twistedmatrix.com> wrote: > Bug summary > ______________________ > Summary for 2006-12-17 through 2006-12-24 > Bugs opened: 30 Bugs closed: 26 Total open bugs: 801 (+4) > > |== Type Changes |== Priority Changes |== Component Changes > |Defect: +6 |Highest: +1 |Conch: -1 > |Enhancement: +6 |High: +1 |Core: +0 > |Task: -3 |Normal: +8 |Lore: +0 > |Low: -1 |Pb: +5 > |Release Management: +1 > |Runner: +1 > |Trial: +0 > |Web2: +2 > |Words: +1 > > > New / Reopened Bugs > ______________________ > ===== Highest ===== > [#2301] Improve API documentation for twisted/lore/tree.py (opened by > exarkun) (CLOSED, fixed) > enhancement lore http://twistedmatrix.com/trac/ticket/2301 > > [#2303] setUpClass isn't run on subclasses if it already ran on > superclass (opened by jknight) > defect trial http://twistedmatrix.com/trac/ticket/2303 > > [#2309] trial man page incorrectly explains --coverage behaviour (opened > by jml) > defect trial http://twistedmatrix.com/trac/ticket/2309 > > [#2313] procutils.which fails with a KeyError if PATH is not in > os.environ (opened by dreid) > defect core http://twistedmatrix.com/trac/ticket/2313 > > [#2317] Bug in how pb handles synchronous pb.Errors in remote_foo > methods (opened by bgranger) > defect pb http://twistedmatrix.com/trac/ticket/2317 > > [#2319] twisted.spread.banana.decode is stateful (opened by exarkun) > defect pb http://twistedmatrix.com/trac/ticket/2319 > > [#2125] PB Banana struggles transmitting large ints (opened by engie) > (CLOSED, fixed) > defect pb http://twistedmatrix.com/trac/ticket/2125 > > [#2291] Zshcomp needs various improvements including test coverage > (opened by teratorn) (CLOSED, fixed) > defect core http://twistedmatrix.com/trac/ticket/2291 > > [#2139] test_underUnderPathAlreadyImported and test_listingModules from > twisted.test.test_modules.(Zip)PathModificationTest fail with Gtk2 > reactor (opened by exarkun) (CLOSED, fixed) > enhancement core http://twistedmatrix.com/trac/ticket/2139 > > [#2291] Zshcomp needs various improvements including test coverage > (opened by teratorn) (CLOSED, fixed) > defect core http://twistedmatrix.com/trac/ticket/2291 > > ===== High ===== > [#2324] _threadedselect.py uses uninformative names and has few > docstrings (opened by exarkun) > defect core http://twistedmatrix.com/trac/ticket/2324 > > [#2325] _threadedselect.py duplicates tons of code from selectreactor.py > (opened by exarkun) > defect core http://twistedmatrix.com/trac/ticket/2325 > > [#1083] gtk2reactor thread initialization confuses python-2.3 (opened by > loic) > defect core http://twistedmatrix.com/trac/ticket/1083 > > ===== Normal ===== > [#2302] t.web2.channel.http.HTTPParser deals with HEAD requests > incorrectly (opened by ghazel) > defect web2 http://twistedmatrix.com/trac/ticket/2302 > > [#2304] t.web2.client.http.HTTPClientChannelRequest.connectionLost does > nothing (opened by ghazel) > defect web2 http://twistedmatrix.com/trac/ticket/2304 > > [#2305] twisted/internet/process.py leaks file descriptors when > os.fork() raises (opened by exarkun) > defect core http://twistedmatrix.com/trac/ticket/2305 > > [#2307] rewrite setup.py so it doesn't os.system() other setup.py > scripts (opened by radix) > enhancement release management > http://twistedmatrix.com/trac/ticket/2307 > > [#2308] Test Twisted's release automation (opened by radix) > enhancement release management > http://twistedmatrix.com/trac/ticket/2308 > > [#2310] twisted.spread.banana.b1282int could be faster (opened by > exarkun) > enhancement pb http://twistedmatrix.com/trac/ticket/2310 > > [#2311] Twisted Perspective Broker anonymous login support (opened by > carlosedp) (CLOSED, duplicate) > enhancement core http://twistedmatrix.com/trac/ticket/2311 > > [#2312] Twisted Perspective Broker anonymous login support (opened by > carlosedp) > enhancement pb http://twistedmatrix.com/trac/ticket/2312 > > [#2314] t.r.procmon.ProcessMonitor should take an environment dictionary > in addProcess (opened by dreid) > enhancement runner http://twistedmatrix.com/trac/ticket/2314 > > [#2315] Request to add int8 string support to basic protocols (opened by > metcalfc) > enhancement core http://twistedmatrix.com/trac/ticket/2315 > > [#2316] Bug in how pb handles synchronous pb.Errors in remote_foo > methods (opened by bgranger) (CLOSED, duplicate) > defect pb http://twistedmatrix.com/trac/ticket/2316 > > [#2318] Bug in how pb handles synchronous pb.Errors in remote_foo > methods (opened by bgranger) (CLOSED, duplicate) > defect pb http://twistedmatrix.com/trac/ticket/2318 > > [#2320] Implement XMPP server-to-server protocols (opened by ralphm) > enhancement words http://twistedmatrix.com/trac/ticket/2320 > > [#2321] twisted.test.test_pb.NSPTestCase.tearDown calls stopListening > but doesn't return the Deferred (opened by exarkun) > defect pb http://twistedmatrix.com/trac/ticket/2321 > > [#2322] twisted.test.test_pb.NSPTestCase.tearDown should return result > of stopListening() (opened by jml) (CLOSED, duplicate) > defect core http://twistedmatrix.com/trac/ticket/2322 > > [#2323] support deque in objgrep (opened by glyph) > enhancement core http://twistedmatrix.com/trac/ticket/2323 > > ===== Low ===== > [#2306] Possible error in documentation, in defer.html (opened by roup) > (CLOSED, fixed) > defect core http://twistedmatrix.com/trac/ticket/2306 > > > > Closed Bugs > ______________________ > ===== Highest ===== > [#2300] Remove trailing whitespace from Python files (opened by jml, > closed by jml, wontfix) > task core http://twistedmatrix.com/trac/ticket/2300 > > [#2301] Improve API documentation for twisted/lore/tree.py (opened by > exarkun, closed by exarkun, fixed) > enhancement lore http://twistedmatrix.com/trac/ticket/2301 > > [#2125] PB Banana struggles transmitting large ints (opened by engie, > closed by exarkun, fixed) > defect pb http://twistedmatrix.com/trac/ticket/2125 > > [#2291] Zshcomp needs various improvements including test coverage > (opened by teratorn, closed by teratorn, fixed) > defect core http://twistedmatrix.com/trac/ticket/2291 > > [#2024] trial --dry-run fails with real test_suites, because pyunit > suites don't have names (opened by spiv, closed by jml, fixed) > defect trial http://twistedmatrix.com/trac/ticket/2024 > > [#2291] Zshcomp needs various improvements including test coverage > (opened by teratorn, closed by teratorn, fixed) > defect core http://twistedmatrix.com/trac/ticket/2291 > > [#2137] Pointer for end-users to the new location of the Qt reactor > (opened by exarkun, closed by exarkun, fixed) > task core http://twistedmatrix.com/trac/ticket/2137 > > [#2292] AMP error propagation does not work on subclasses (opened by > htj, closed by glyph, fixed) > defect core http://twistedmatrix.com/trac/ticket/2292 > > [#2125] PB Banana struggles transmitting large ints (opened by engie, > closed by exarkun, fixed) > defect pb http://twistedmatrix.com/trac/ticket/2125 > > [#2139] test_underUnderPathAlreadyImported and test_listingModules from > twisted.test.test_modules.(Zip)PathModificationTest fail with Gtk2 > reactor (opened by exarkun, closed by glyph, fixed) > enhancement core http://twistedmatrix.com/trac/ticket/2139 > > [#2286] abstract.FileDescriptor calls pauseProducing even if producer is > not streaming (opened by zseil, closed by glyph, fixed) > defect core http://twistedmatrix.com/trac/ticket/2286 > > [#2291] Zshcomp needs various improvements including test coverage > (opened by teratorn, closed by teratorn, fixed) > defect core http://twistedmatrix.com/trac/ticket/2291 > > [#1835] make main setup.py work with 'build' subcommand (opened by > radix, closed by radix, fixed) > defect release management > http://twistedmatrix.com/trac/ticket/1835 > > ===== High ===== > [#1083] gtk2reactor thread initialization confuses python-2.3 (opened by > loic, closed by letrigre, ) > defect core http://twistedmatrix.com/trac/ticket/1083 > > [#811 ] Race condition in streaming producers means producer may never > be unpaused (opened by itamarst, closed by glyph, fixed) > defect core http://twistedmatrix.com/trac/ticket/811 > > [#677 ] widgets don't show with wxreactor and xrc (opened by acapnotic, > closed by itamarst, fixed) > defect core http://twistedmatrix.com/trac/ticket/677 > > ===== Normal ===== > [#2311] Twisted Perspective Broker anonymous login support (opened by > carlosedp, closed by carlosedp, duplicate) > enhancement core http://twistedmatrix.com/trac/ticket/2311 > > [#2316] Bug in how pb handles synchronous pb.Errors in remote_foo > methods (opened by bgranger, closed by bgranger, duplicate) > defect pb http://twistedmatrix.com/trac/ticket/2316 > > [#2318] Bug in how pb handles synchronous pb.Errors in remote_foo > methods (opened by bgranger, closed by bgranger, duplicate) > defect pb http://twistedmatrix.com/trac/ticket/2318 > > [#1770] Reactor for Qt4 using PyQt4 (opened by grudy, closed by exarkun, > wontfix) > enhancement core http://twistedmatrix.com/trac/ticket/1770 > > [#2322] twisted.test.test_pb.NSPTestCase.tearDown should return result > of stopListening() (opened by jml, closed by jml, duplicate) > defect core http://twistedmatrix.com/trac/ticket/2322 > > [#2174] Error in the PullProducer doc (opened by misto, closed by glyph, > fixed) > defect core http://twistedmatrix.com/trac/ticket/2174 > > [#1942] Fix IOCP buildslave (opened by exarkun, closed by teratorn, > fixed) > task core http://twistedmatrix.com/trac/ticket/1942 > > [#619 ] wxPython doesn't render interface components (opened by > sdeerwester, closed by itamarst, fixed) > enhancement conch http://twistedmatrix.com/trac/ticket/619 > > ===== Low ===== > [#388 ] Tests code coverage display for Twisted (opened by itamarst, > closed by exarkun, wontfix) > enhancement trial http://twistedmatrix.com/trac/ticket/388 > > [#2306] Possible error in documentation, in defer.html (opened by roup, > closed by exarkun, fixed) > defect core http://twistedmatrix.com/trac/ticket/2306 > > > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python(a)twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python >

2 1

Re: [Twisted-Python] Weekly Bug Summary
by glyph＠divmod.com Dec. 24, 2006

Dec. 24, 2006

2 1

[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com Dec. 24, 2006

Dec. 24, 2006

Bug summary ______________________ Summary for 2006-12-17 through 2006-12-24 Bugs opened: 30 Bugs closed: 26 Total open bugs: 801 (+4) |== Type Changes |== Priority Changes |== Component Changes |Defect: +6 |Highest: +1 |Conch: -1 |Enhancement: +6 |High: +1 |Core: +0 |Task: -3 |Normal: +8 |Lore: +0 |Low: -1 |Pb: +5 |Release Management: +1 |Runner: +1 |Trial: +0 |Web2: +2 |Words: +1 New / Reopened Bugs ______________________ ===== Highest ===== [#2301] Improve API documentation for twisted/lore/tree.py (opened by exarkun) (CLOSED, fixed) enhancement lore http://twistedmatrix.com/trac/ticket/2301 [#2303] setUpClass isn't run on subclasses if it already ran on superclass (opened by jknight) defect trial http://twistedmatrix.com/trac/ticket/2303 [#2309] trial man page incorrectly explains --coverage behaviour (opened by jml) defect trial http://twistedmatrix.com/trac/ticket/2309 [#2313] procutils.which fails with a KeyError if PATH is not in os.environ (opened by dreid) defect core http://twistedmatrix.com/trac/ticket/2313 [#2317] Bug in how pb handles synchronous pb.Errors in remote_foo methods (opened by bgranger) defect pb http://twistedmatrix.com/trac/ticket/2317 [#2319] twisted.spread.banana.decode is stateful (opened by exarkun) defect pb http://twistedmatrix.com/trac/ticket/2319 [#2125] PB Banana struggles transmitting large ints (opened by engie) (CLOSED, fixed) defect pb http://twistedmatrix.com/trac/ticket/2125 [#2291] Zshcomp needs various improvements including test coverage (opened by teratorn) (CLOSED, fixed) defect core http://twistedmatrix.com/trac/ticket/2291 [#2139] test_underUnderPathAlreadyImported and test_listingModules from twisted.test.test_modules.(Zip)PathModificationTest fail with Gtk2 reactor (opened by exarkun) (CLOSED, fixed) enhancement core http://twistedmatrix.com/trac/ticket/2139 [#2291] Zshcomp needs various improvements including test coverage (opened by teratorn) (CLOSED, fixed) defect core http://twistedmatrix.com/trac/ticket/2291 ===== High ===== [#2324] _threadedselect.py uses uninformative names and has few docstrings (opened by exarkun) defect core http://twistedmatrix.com/trac/ticket/2324 [#2325] _threadedselect.py duplicates tons of code from selectreactor.py (opened by exarkun) defect core http://twistedmatrix.com/trac/ticket/2325 [#1083] gtk2reactor thread initialization confuses python-2.3 (opened by loic) defect core http://twistedmatrix.com/trac/ticket/1083 ===== Normal ===== [#2302] t.web2.channel.http.HTTPParser deals with HEAD requests incorrectly (opened by ghazel) defect web2 http://twistedmatrix.com/trac/ticket/2302 [#2304] t.web2.client.http.HTTPClientChannelRequest.connectionLost does nothing (opened by ghazel) defect web2 http://twistedmatrix.com/trac/ticket/2304 [#2305] twisted/internet/process.py leaks file descriptors when os.fork() raises (opened by exarkun) defect core http://twistedmatrix.com/trac/ticket/2305 [#2307] rewrite setup.py so it doesn't os.system() other setup.py scripts (opened by radix) enhancement release management http://twistedmatrix.com/trac/ticket/2307 [#2308] Test Twisted's release automation (opened by radix) enhancement release management http://twistedmatrix.com/trac/ticket/2308 [#2310] twisted.spread.banana.b1282int could be faster (opened by exarkun) enhancement pb http://twistedmatrix.com/trac/ticket/2310 [#2311] Twisted Perspective Broker anonymous login support (opened by carlosedp) (CLOSED, duplicate) enhancement core http://twistedmatrix.com/trac/ticket/2311 [#2312] Twisted Perspective Broker anonymous login support (opened by carlosedp) enhancement pb http://twistedmatrix.com/trac/ticket/2312 [#2314] t.r.procmon.ProcessMonitor should take an environment dictionary in addProcess (opened by dreid) enhancement runner http://twistedmatrix.com/trac/ticket/2314 [#2315] Request to add int8 string support to basic protocols (opened by metcalfc) enhancement core http://twistedmatrix.com/trac/ticket/2315 [#2316] Bug in how pb handles synchronous pb.Errors in remote_foo methods (opened by bgranger) (CLOSED, duplicate) defect pb http://twistedmatrix.com/trac/ticket/2316 [#2318] Bug in how pb handles synchronous pb.Errors in remote_foo methods (opened by bgranger) (CLOSED, duplicate) defect pb http://twistedmatrix.com/trac/ticket/2318 [#2320] Implement XMPP server-to-server protocols (opened by ralphm) enhancement words http://twistedmatrix.com/trac/ticket/2320 [#2321] twisted.test.test_pb.NSPTestCase.tearDown calls stopListening but doesn't return the Deferred (opened by exarkun) defect pb http://twistedmatrix.com/trac/ticket/2321 [#2322] twisted.test.test_pb.NSPTestCase.tearDown should return result of stopListening() (opened by jml) (CLOSED, duplicate) defect core http://twistedmatrix.com/trac/ticket/2322 [#2323] support deque in objgrep (opened by glyph) enhancement core http://twistedmatrix.com/trac/ticket/2323 ===== Low ===== [#2306] Possible error in documentation, in defer.html (opened by roup) (CLOSED, fixed) defect core http://twistedmatrix.com/trac/ticket/2306 Closed Bugs ______________________ ===== Highest ===== [#2300] Remove trailing whitespace from Python files (opened by jml, closed by jml, wontfix) task core http://twistedmatrix.com/trac/ticket/2300 [#2301] Improve API documentation for twisted/lore/tree.py (opened by exarkun, closed by exarkun, fixed) enhancement lore http://twistedmatrix.com/trac/ticket/2301 [#2125] PB Banana struggles transmitting large ints (opened by engie, closed by exarkun, fixed) defect pb http://twistedmatrix.com/trac/ticket/2125 [#2291] Zshcomp needs various improvements including test coverage (opened by teratorn, closed by teratorn, fixed) defect core http://twistedmatrix.com/trac/ticket/2291 [#2024] trial --dry-run fails with real test_suites, because pyunit suites don't have names (opened by spiv, closed by jml, fixed) defect trial http://twistedmatrix.com/trac/ticket/2024 [#2291] Zshcomp needs various improvements including test coverage (opened by teratorn, closed by teratorn, fixed) defect core http://twistedmatrix.com/trac/ticket/2291 [#2137] Pointer for end-users to the new location of the Qt reactor (opened by exarkun, closed by exarkun, fixed) task core http://twistedmatrix.com/trac/ticket/2137 [#2292] AMP error propagation does not work on subclasses (opened by htj, closed by glyph, fixed) defect core http://twistedmatrix.com/trac/ticket/2292 [#2125] PB Banana struggles transmitting large ints (opened by engie, closed by exarkun, fixed) defect pb http://twistedmatrix.com/trac/ticket/2125 [#2139] test_underUnderPathAlreadyImported and test_listingModules from twisted.test.test_modules.(Zip)PathModificationTest fail with Gtk2 reactor (opened by exarkun, closed by glyph, fixed) enhancement core http://twistedmatrix.com/trac/ticket/2139 [#2286] abstract.FileDescriptor calls pauseProducing even if producer is not streaming (opened by zseil, closed by glyph, fixed) defect core http://twistedmatrix.com/trac/ticket/2286 [#2291] Zshcomp needs various improvements including test coverage (opened by teratorn, closed by teratorn, fixed) defect core http://twistedmatrix.com/trac/ticket/2291 [#1835] make main setup.py work with 'build' subcommand (opened by radix, closed by radix, fixed) defect release management http://twistedmatrix.com/trac/ticket/1835 ===== High ===== [#1083] gtk2reactor thread initialization confuses python-2.3 (opened by loic, closed by letrigre, ) defect core http://twistedmatrix.com/trac/ticket/1083 [#811 ] Race condition in streaming producers means producer may never be unpaused (opened by itamarst, closed by glyph, fixed) defect core http://twistedmatrix.com/trac/ticket/811 [#677 ] widgets don't show with wxreactor and xrc (opened by acapnotic, closed by itamarst, fixed) defect core http://twistedmatrix.com/trac/ticket/677 ===== Normal ===== [#2311] Twisted Perspective Broker anonymous login support (opened by carlosedp, closed by carlosedp, duplicate) enhancement core http://twistedmatrix.com/trac/ticket/2311 [#2316] Bug in how pb handles synchronous pb.Errors in remote_foo methods (opened by bgranger, closed by bgranger, duplicate) defect pb http://twistedmatrix.com/trac/ticket/2316 [#2318] Bug in how pb handles synchronous pb.Errors in remote_foo methods (opened by bgranger, closed by bgranger, duplicate) defect pb http://twistedmatrix.com/trac/ticket/2318 [#1770] Reactor for Qt4 using PyQt4 (opened by grudy, closed by exarkun, wontfix) enhancement core http://twistedmatrix.com/trac/ticket/1770 [#2322] twisted.test.test_pb.NSPTestCase.tearDown should return result of stopListening() (opened by jml, closed by jml, duplicate) defect core http://twistedmatrix.com/trac/ticket/2322 [#2174] Error in the PullProducer doc (opened by misto, closed by glyph, fixed) defect core http://twistedmatrix.com/trac/ticket/2174 [#1942] Fix IOCP buildslave (opened by exarkun, closed by teratorn, fixed) task core http://twistedmatrix.com/trac/ticket/1942 [#619 ] wxPython doesn't render interface components (opened by sdeerwester, closed by itamarst, fixed) enhancement conch http://twistedmatrix.com/trac/ticket/619 ===== Low ===== [#388 ] Tests code coverage display for Twisted (opened by itamarst, closed by exarkun, wontfix) enhancement trial http://twistedmatrix.com/trac/ticket/388 [#2306] Possible error in documentation, in defer.html (opened by roup, closed by exarkun, fixed) defect core http://twistedmatrix.com/trac/ticket/2306

1 0

[Twisted-Python] understand the ftp response
by Michele Petrazzo Dec. 22, 2006

Dec. 22, 2006

Hi list, I'm using ftp client and its storeFile for send a file to the server, but I'm have some troubles to understand its response. I receive, after the end of connection (fired by the SenderProtocol), something that ( pprint.pprint(result) ): [(True, [(True, ['150 FILE: /tmp/doc100.tif (Opening new data connection).', '226 Transfer complete (FILE: /tmp/doc100.tif).'])]), (True, None), (True, 'connection done')] That isn't so readable, for me. I need only the last response (the 150 and 226), so I have to make a: result[0][1][0][1], that work, but is not so understandable. Is there other soltions? Thanks, Michele

1 0

[Twisted-Python] ftp question
by Michele Petrazzo Dec. 22, 2006

Dec. 22, 2006

I list, I want to implement a not standard ftp STOR (STOT in the real) command. It not accept the path, because it create a new one on the server side. I'm tring to work with the sendToConnection and SenderProtocol, but I don't understand where the file (that on storeFile are passed as "path") are opened (read) for after pass its data to the write method of SenderProtocol. I stop myself because I'm not able to send data throw the channel! Can someone help me? Thanks, Michele

1 1

[Twisted-Python] SSL problem
by Steve Freitas Dec. 22, 2006

Dec. 22, 2006

Hi all. I'm having trouble getting SSL working properly. I'm running a modified t.m.pop3.POP3 server and it was running peachy on port 110, no problems under real-world load, so I thought it'd be simple enough to add SSL support by changing this... INTERFACES = ('1.2.3.4','4.5.6.7', etc.) for iface in INTERFACES: reactor.listenTCP(110, myPop3server, interface=iface) reactor.run() ...to this: INTERFACES = ('1.2.3.4','4.5.6.7', etc.) sslContext = ssl.DefaultOpenSSLContextFactory(SSL_PRIVATE_KEY_FILE, SSL_CERTIFICATE_FILE) for iface in INTERFACES: reactor.listenTCP(110, myPop3server, interface=iface) reactor.listenSSL(995, myPop3server, interface=iface, contextFactory=sslContext) reactor.run() Which worked fine when hitting it with a single client from my machine, but failed miserably when hitting it from mail2web.com. Lots of errors loading the message list and the messages. The log showed mail2web connecting and then immediately dropping the connection. I tried changing the code so I instantiated one sslContext per call to listenSSL. That made it much better, but still not perfect. The errors persisted. So I tried dropping the calls to listenSSL, and wrapped the server with stunnel. That worked perfectly, except since my host doesn't support transparent proxying, my twisted app doesn't see the connecting client's IP, and I need that, so that's not an option. It does implicate twisted's particular flavor of SSL in my problems, though. I don't know much about SSL, but I searched the twisted list and couldn't find anything that helped, with the possible exception of a query about support for SSL session resumption. I don't know what it is, but it sounds useful. Anyway, if anybody could toss an idea or two my way, I'd appreciate it. Thanks, Steve P.S. for posterity: I got a tip from this list to use authbind when trying to bind my twisted server to a privileged port (e.g. < 1024). For those of you who might have trouble using authbind to allow your non-root user to bind to ports between 512-1023, you need to get the authbind source, then comment out helper.c:76 and libauthbind.c:151, at least for version 1.1.5.2, where it checks the requested port against IPPORT_RESERVED/2. The man page squawks about prohibiting these ports to avoid creating a security hole in conjunction with rsh, but since rsh _is_ a security hole, I'm not overly worried about that.

3 7

[Twisted-Python] Transforming Exception -> pb.Error in a remote_foo method
by Brian Granger Dec. 20, 2006

Dec. 20, 2006

Hi, In the Twisted docs it is claimed that in order to propagate exceptions over PB: "The only special thing you do is to define your Exception subclass by deriving it from pb.Error. " This seems simple enough, but I am using PB to adapt a general service that doesn't use pb.Errors (as the service is also adapted to other protocols). How can one transform a regular Exception to a pb.Error? The following does not work: def remote_foo(self, f): d = self.service.foo(f) def raiser(): raise pb.Error('I pbfailed') d.addErrback(lambda reason: raiser()) # reason is an Exception, not a pb.Error! return d In this case, the server still complains about an unhandled exception. Any thoughts about how to do this? Thanks Brian

2 1

[Twisted-Python] Possible error in core documentation in defer.html
by Pierre Rouleau Dec. 19, 2006

Dec. 19, 2006

Hi all, - Page: http://twistedmatrix.com/projects/core/documentation/howto/defer.html - Section: Multiple callbacks The example ends with:: # this series of callbacks and errbacks will print "Result: 12" g = Getter() d = g.getData(4) d.addCallback(printData) d.addErrback(printError) The line:: d = g.getData(4) should be:: d = g.getDummyData(4) Should I enter this in TRAC? -- Pierre Rouleau

2 2

Re: [Twisted-Python] Re: Perspective Broker Anonymous access..
by glyph＠divmod.com Dec. 19, 2006

Dec. 19, 2006

On 09:21 pm, cedepaula(a)yahoo.com.br wrote: >>It would be a very welcome contribution. :) Take a look at these pages, if you >>haven't already seen them, for some guidelines on how to best contribute the >>changes, and feel free to ask if you have any other questions. >Thanks and awaiting a feedback, Please open a ticket in the tracker (accessible at the very front page of twistedmatrix.com), and attach a unified diff to it. If your code already contains tests and comprehensive docstring coverage of new functionality, then attach the keyword 'review'. If you haven't already, you'll need to register for an account first before you can open tickets.

1 0