Mailman 3 January 2017 - Twisted

[Twisted-Python] Weekly Bug Summary
by trac＠twistedmatrix.com Jan. 9, 2017

Jan. 9, 2017

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[Twisted-Python] treq POST abborting with: err: ('Could not adapt', '{"....", "..."} <InterfaceClass twisted.web.iweb.IBodyProducer>)
by steven meiers Jan. 6, 2017

Jan. 6, 2017

hi, sending a simple post request with a body (cookies) results in a error here. im using python 3.x with the latest twisted and treq installed via pip in a virtualenv. the code gets a chatroom login page, extracts two values, gets the cookies and logs a user into the chat. (incomplete) thing is for being logged in i need to send my current phpsessionid in the post request... glyph (without seeing the the code or backtrace) suggested that: "I think the issue might be that it doesn't support bytes() on py3, it's registered against str() or something" here is my code: from myhttp import getLoginPage, login from twisted.internet import reactor def myPrint(result): print("result:", result) def myError(failure): print("failure:", failure) def lala(): #d = getLoginPage() d = login() d.addCallback(myPrint) d.addErrback(myError) if __name__ == '__main__': lala() reactor.run() from myhttp import getLoginPage, login from twisted.internet import reactor def myPrint(result): print("result:", result) def myError(failure): print("failure:", failure) def lala(): #d = getLoginPage() d = login() d.addCallback(myPrint) d.addErrback(myError) if __name__ == '__main__': lala() reactor.run() (venv) julius@t560:~/code/twisted/webchat-client$ cat myhttp.py from bs4 import BeautifulSoup import random from twisted.internet import reactor, defer from twisted.web.client import getPage import treq import urllib url = b'http://chatroom2000.de' useragent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36".encode('utf-8') cookies = {} @defer.inlineCallbacks def getLoginPage(): global cookies response = yield treq.get(url) final_page = yield response.content() cookies = response.cookies() defer.returnValue(final_page) @defer.inlineCallbacks def login(): response = yield getLoginPage() print(cookies) print("rsponse:", response) soup = BeautifulSoup(response, "lxml") hmac = soup.input["name"] key = soup.input["value"] print("hmac:key", hmac,key) username_list = ["Demetrius", "Tyrone", "Marshawn"] username = random.choice(username_list) body = urllib.parse.urlencode({hmac: key, 'username': username, 'pw':'', 'gender':'m', 'aaaa':''}) target_url = url + b"/?CheckUserName" headers = {'Content-Type': 'application/x-www-form- urlencoded','cache-control': ['no-store, no-cache, must-revalidate, pre-check=0, post-check=0, max-age=0']} import json try: print("cookies2:", cookies) somepage = yield treq.post(target_url, json.dumps({hmac: key, "username": username, 'pw':'', 'gender':'m', 'aaaa':''}), headers=headers, cookies=cookies ) except Exception as err: print("err:", err) response = yield somepage.content() defer.returnValue(response) if __name__ == '__main__': #url = 'http://chatroom2000.de' getPage(url) reactor.run() and the error: cookies2: <RequestsCookieJar[<Cookie PHPSESSID=jevr00m25j0clfv6aibbgbro26 for chatroom2000.de/>, <Cookie db1_cookie_test=1483729313 for chatroom2000.de/>]> err: ('Could not adapt', '{"pw": "", "aaaa": "", "username": "Demetrius", "cd5a6e4774acfd7e090467c9ed67f7e6": "1483729313", "gender": "m"}', <InterfaceClass twisted.web.iweb.IBodyProducer>) failure: [Failure instance: Traceback: <class 'UnboundLocalError'>: local variable 'somepage' referenced before assignment /home/julius/code/twisted/webchat-client/venv/lib/python3.5/site- packages/twisted/internet/defer.py:457:callback /home/julius/code/twisted/webchat-client/venv/lib/python3.5/site- packages/twisted/internet/defer.py:565:_startRunCallbacks /home/julius/code/twisted/webchat-client/venv/lib/python3.5/site- packages/twisted/internet/defer.py:651:_runCallbacks /home/julius/code/twisted/webchat-client/venv/lib/python3.5/site- packages/twisted/internet/defer.py:1355:gotResult --- <exception caught here> --- /home/julius/code/twisted/webchat-client/venv/lib/python3.5/site- packages/twisted/internet/defer.py:1299:_inlineCallbacks /home/julius/code/twisted/webchat-client/myhttp.py:54:login i followd some files in the traceback, but got nowhere :(

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[Twisted-Python] Twisted 16.7.0rc1 Release Candidate Announcement
by Amber "Hawkie" Brown Jan. 3, 2017

Jan. 3, 2017

Hello everyone, and happy holidays! Although it didn't quite fall on the solstice, one could call this Twisted release a little ray of sunshine, with some nice new improvements. 16.7.0rc1 brings the following stocking stuffers: - twisted.web.client.Agent now supports IPv6! It's also now the primary web client in Twisted, with twisted.web.client.getPage being deprecated in favour of it and Treq. - twisted.internet.ssl.CertificateOptions has had its `method` argument deprecated, in favour of the new raiseMinimumTo, lowerMaximumSecurityTo, and insecurelyLowerMinimumTo arguments, which take TLSVersion arguments. This allows you to better give a range of versions of TLS you wish to negotiate, rather than forcing yourself to any one version. - twisted.internet.ssl.CertificateOptions will use OpenSSL's MODE_RELEASE_BUFFERS, which will let it free unused memory that was held by idle TLS connections. - You can now call the new twist runner with `python -m twisted`. - Conch has the beginnings of ECDH key exchange, and supports `hmac-sha2-384` in twisted.conch.ssh. - Better Unicode support in twisted.internet.reactor.spawnProcess, especially on Windows on Python 3.6. - More Python 3 porting in Conch, and more under-the-hood changes to facilitate a Twisted-wide jump to new-style classes only on Python 2 in 2018/2019. This release has also been tested on Python 3.6 on Linux. - Lots of deprecated code removals, to make a sleeker, less confusing Twisted. - 20+ closed tickets. You can get the tarball and the NEWS file at https://twistedmatrix.com/Releases/rc/16.7.0rc1/ <https://twistedmatrix.com/Releases/rc/16.7.0rc1/> , or you can try it out from PyPI: python -m pip install Twisted==16.7.0rc1 Please test it, and let me know how your applications fare, good or bad! If nothing comes up, 16.7 looks like it'll land just before the new year. With festive hoots, Amber Brown

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[Twisted-Python] tx github announcements in #twisted-dev
by Jean-Paul Calderone Jan. 2, 2017

Jan. 2, 2017

How do folks feel about this? Good idea or not? Jean-Paul

2 1

[Twisted-Python] AWS Auth v4 for Twisted?
by Jean-Paul Calderone Jan. 2, 2017

Jan. 2, 2017

Seeking a library that implements this for use with txAWS. More details: https://stackoverflow.com/questions/41322251/is-there-an-aws-auth-v4-implem… Jean-Paul

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[Twisted-Python] Weekly Bug Summary
by trac＠twistedmatrix.com Jan. 1, 2017

Jan. 1, 2017

1 0