Cannot connect to host #181

nkorth · 2015-11-08T02:52:00Z

I signed into hangups, it said "Connecting...", and then it threw the following exception. This occurred with both my normal Google account and my Google Apps account (I deleted the token file to test the other). The Chrome Hangouts app works fine on this computer/network. I'm using OS X 10.10.3 and Python 3.4.2 (installed through Homebrew).

Traceback (most recent call last):
  File "/usr/local/bin/hangups", line 9, in <module>
    load_entry_point('hangups==0.3.0', 'console_scripts', 'hangups')()
  File "/usr/local/lib/python3.4/site-packages/hangups/ui/__main__.py", line 897, in main
    }, COL_SCHEMES[args.col_scheme], args.disable_notifications)
  File "/usr/local/lib/python3.4/site-packages/hangups/ui/__main__.py", line 80, in __init__
    loop.run_until_complete(self._client.connect())
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/base_events.py", line 268, in run_until_complete
    return future.result()
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/futures.py", line 277, in result
    raise self._exception
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/tasks.py", line 232, in _step
    result = coro.throw(exc)
  File "/usr/local/lib/python3.4/site-packages/hangups/client.py", line 99, in connect
    yield from self._listen_future
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/futures.py", line 388, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/tasks.py", line 285, in _wakeup
    value = future.result()
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/futures.py", line 277, in result
    raise self._exception
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/tasks.py", line 236, in _step
    result = next(coro)
  File "/usr/local/lib/python3.4/site-packages/hangups/channel.py", line 208, in listen
    yield from self._fetch_channel_sid()
  File "/usr/local/lib/python3.4/site-packages/hangups/channel.py", line 278, in _fetch_channel_sid
    res = yield from self.send_maps([])
  File "/usr/local/lib/python3.4/site-packages/hangups/channel.py", line 253, in send_maps
    params=params, data=data_dict,
  File "/usr/local/lib/python3.4/site-packages/hangups/http_utils.py", line 52, in fetch
    raise exceptions.NetworkError(error_msg)
hangups.exceptions.NetworkError: Request connection error: Cannot connect to host 0.client-channel.google.com:443 ssl:True

The text was updated successfully, but these errors were encountered:

nkorth · 2015-11-08T03:16:24Z

Here's the complete log file (auth key redacted) from a second try.

2015-11-07 22:02:00,900 - hangups.auth - INFO - Authenticating with refresh token
2015-11-07 22:02:00,900 - hangups.auth - INFO - Loading refresh_token from '/Users/nkorth/Library/Caches/hangups/refresh_token.txt'
2015-11-07 22:02:00,933 - requests.packages.urllib3.connectionpool - INFO - Starting new HTTPS connection (1): accounts.google.com
2015-11-07 22:02:01,660 - requests.packages.urllib3.connectionpool - DEBUG - "POST /o/oauth2/token HTTP/1.1" 200 None
2015-11-07 22:02:01,668 - hangups.auth - INFO - Authentication successful
2015-11-07 22:02:01,671 - requests.packages.urllib3.connectionpool - INFO - Starting new HTTPS connection (1): accounts.google.com
2015-11-07 22:02:02,265 - requests.packages.urllib3.connectionpool - DEBUG - "GET /accounts/OAuthLogin?source=hangups&issueuberauth=1 HTTP/1.1" 200 547
2015-11-07 22:02:02,445 - requests.packages.urllib3.connectionpool - DEBUG - "GET /MergeSession?service=mail&continue=http://www.google.com&uberauth=[redacted] HTTP/1.1" 302 313
2015-11-07 22:02:02,631 - requests.packages.urllib3.connectionpool - DEBUG - "GET /CheckCookie?chtml=LoginDoneHtml&service=mail&continue=https%3A%2F%2Fwww.google.com&gidl=CAA HTTP/1.1" 302 204
2015-11-07 22:02:02,639 - requests.packages.urllib3.connectionpool - INFO - Starting new HTTPS connection (1): www.google.com
2015-11-07 22:02:03,223 - requests.packages.urllib3.connectionpool - DEBUG - "GET / HTTP/1.1" 200 None
2015-11-07 22:02:03,240 - hangups.channel - INFO - Requesting new gsessionid and SID...
2015-11-07 22:02:03,240 - hangups.http_utils - DEBUG - Sending request post https://0.client-channel.google.com/client-channel/channel/bind:
{'count': 0, 'ofs': 0}
2015-11-07 22:02:03,496 - hangups.http_utils - INFO - Request attempt 0 failed: Request connection error: Cannot connect to host 0.client-channel.google.com:443 ssl:True
2015-11-07 22:02:03,710 - hangups.http_utils - INFO - Request attempt 1 failed: Request connection error: Cannot connect to host 0.client-channel.google.com:443 ssl:True
2015-11-07 22:02:03,927 - hangups.http_utils - INFO - Request attempt 2 failed: Request connection error: Cannot connect to host 0.client-channel.google.com:443 ssl:True
2015-11-07 22:02:03,927 - hangups.http_utils - INFO - Request failed after 3 attempts

tdryer · 2015-11-08T05:21:32Z

Is this happening consistently? Can you connect to https://0.client-channel.google.com/ in your browser?

nkorth · 2015-11-08T07:25:37Z

Yes, it happens consistently. My browser can connect to the host (HTTPS checks out too), though it produces

<HTML>
<HEAD>
<TITLE>Not Found</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<H1>Not Found</H1>
<H2>Error 404</H2>
</BODY>
</HTML>

tdryer · 2015-11-09T04:29:21Z

My best guess is that Python is having trouble with the TLS connection. Here's a script to try:
https://gist.github.com/tdryer/b1899a8b958e37fcaa12

Output should be:

<ClientResponse(https://httpbin.org/get) [200 OK]>
<CIMultiDictProxy {'SERVER': 'nginx', 'DATE': 'Mon, 09 Nov 2015 04:27:21 GMT', 'CONTENT-TYPE': 'application/json', 'CONTENT-LENGTH': '268', 'CONNECTION': 'keep-alive', 'ACCESS-CONTROL-ALLOW-ORIGIN': '*', 'ACCESS-CONTROL-ALLOW-CREDENTIALS': 'true'}>

<ClientResponse(https://0.client-channel.google.com/client-channel/channel/bind) [403 unknown client type]>
<CIMultiDictProxy {'CONTENT-TYPE': 'text/html; charset=UTF-8', 'CONTENT-ENCODING': 'gzip', 'DATE': 'Mon, 09 Nov 2015 04:27:21 GMT', 'EXPIRES': 'Mon, 09 Nov 2015 04:27:21 GMT', 'CACHE-CONTROL': 'private, max-age=0', 'X-CONTENT-TYPE-OPTIONS': 'nosniff', 'X-FRAME-OPTIONS': 'SAMEORIGIN', 'X-XSS-PROTECTION': '1; mode=block', 'SERVER': 'GSE', 'ALTERNATE-PROTOCOL': '443:quic,p=1', 'ALT-SVC': 'quic=":443"; p="1"; ma=604800', 'TRANSFER-ENCODING': 'chunked'}>

nkorth · 2015-11-09T04:38:32Z

Output was:

<ClientResponse(https://httpbin.org/get) [200 OK]>
<CIMultiDictProxy {'SERVER': 'nginx', 'DATE': 'Mon, 09 Nov 2015 04:33:31 GMT', 'CONTENT-TYPE': 'application/json', 'CONTENT-LENGTH': '268', 'CONNECTION': 'keep-alive', 'ACCESS-CONTROL-ALLOW-ORIGIN': '*', 'ACCESS-CONTROL-ALLOW-CREDENTIALS': 'true'}>

Traceback (most recent call last):
  File "/usr/local/lib/python3.4/site-packages/aiohttp/connector.py", line 571, in _create_connection
    server_hostname=hinfo['hostname'] if sslcontext else None)
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/base_events.py", line 579, in create_connection
    sock, protocol_factory, ssl, server_hostname)
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/base_events.py", line 601, in _create_connection_transport
    yield from waiter
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/futures.py", line 388, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/tasks.py", line 285, in _wakeup
    value = future.result()
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/futures.py", line 277, in result
    raise self._exception
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/selector_events.py", line 727, in _on_handshake
    self._sock.do_handshake()
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/ssl.py", line 805, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.4/site-packages/aiohttp/connector.py", line 292, in connect
    transport, proto = yield from self._create_connection(req)
  File "/usr/local/lib/python3.4/site-packages/aiohttp/connector.py", line 588, in _create_connection
    (req.host, req.port)) from exc
aiohttp.errors.ClientOSError: Can not connect to 0.client-channel.google.com:443

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "test2.py", line 17, in <module>
    asyncio.get_event_loop().run_until_complete(main())
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/base_events.py", line 268, in run_until_complete
    return future.result()
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/futures.py", line 277, in result
    raise self._exception
  File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/asyncio/tasks.py", line 232, in _step
    result = coro.throw(exc)
  File "test2.py", line 12, in main
    response = yield from aiohttp.request('get', url)
  File "/usr/local/lib/python3.4/site-packages/aiohttp/client.py", line 466, in request
    read_until_eof=read_until_eof)
  File "/usr/local/lib/python3.4/site-packages/aiohttp/client.py", line 131, in request
    conn = yield from self._connector.connect(req)
  File "/usr/local/lib/python3.4/site-packages/aiohttp/connector.py", line 299, in connect
    'Cannot connect to host %s:%s ssl:%s' % key) from exc
aiohttp.errors.ClientOSError: Cannot connect to host 0.client-channel.google.com:443 ssl:True
Unclosed response
client_response: <ClientResponse(https://httpbin.org/get) [200 OK]>
<CIMultiDictProxy {'SERVER': 'nginx', 'DATE': 'Mon, 09 Nov 2015 04:33:31 GMT', 'CONTENT-TYPE': 'application/json', 'CONTENT-LENGTH': '268', 'CONNECTION': 'keep-alive', 'ACCESS-CONTROL-ALLOW-ORIGIN': '*', 'ACCESS-CONTROL-ALLOW-CREDENTIALS': 'true'}>

tdryer · 2015-11-09T04:42:32Z

OK, the problem is that Python can't verify Google's certificate for some reason. This might be an issue with the version of Python that you have installed.

nkorth · 2015-11-09T05:18:00Z

I got it to work! Per http://stackoverflow.com/a/30831120/685933, I did

brew install openssl
brew link --force openssl

ftoulemon · 2016-12-02T14:05:46Z

I have the same problem.
@nkorth : Which version of openssl fixed your issue?

My openssl version:

$ openssl version
OpenSSL 1.0.2g  1 Mar 2016

My hangups output:

Traceback (most recent call last):
  File "/home/toulemf/.local/bin/hangups", line 11, in <module>
    sys.exit(main())
  File "/home/toulemf/.local/lib/python3.5/site-packages/hangups/ui/__main__.py", line 988, in main
    }, col_scheme, palette_colors, datetimefmt, notifier
  File "/home/toulemf/.local/lib/python3.5/site-packages/hangups/ui/__main__.py", line 98, in __init__
    loop.run_until_complete(self._client.connect())
  File "/usr/lib/python3.5/asyncio/base_events.py", line 387, in run_until_complete
    return future.result()
  File "/usr/lib/python3.5/asyncio/futures.py", line 274, in result
    raise self._exception
  File "/usr/lib/python3.5/asyncio/tasks.py", line 241, in _step
    result = coro.throw(exc)
  File "/home/toulemf/.local/lib/python3.5/site-packages/hangups/client.py", line 108, in connect
    yield from self._listen_future
  File "/usr/lib/python3.5/asyncio/futures.py", line 361, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/usr/lib/python3.5/asyncio/tasks.py", line 296, in _wakeup
    future.result()
  File "/usr/lib/python3.5/asyncio/futures.py", line 274, in result
    raise self._exception
  File "/usr/lib/python3.5/asyncio/tasks.py", line 239, in _step
    result = coro.send(None)
  File "/home/toulemf/.local/lib/python3.5/site-packages/hangups/channel.py", line 203, in listen
    yield from self._fetch_channel_sid()
  File "/home/toulemf/.local/lib/python3.5/site-packages/hangups/channel.py", line 273, in _fetch_channel_sid
    res = yield from self.send_maps([])
  File "/home/toulemf/.local/lib/python3.5/site-packages/hangups/channel.py", line 248, in send_maps
    params=params, data=data_dict,
  File "/home/toulemf/.local/lib/python3.5/site-packages/hangups/http_utils.py", line 52, in fetch
    raise exceptions.NetworkError(error_msg)
hangups.exceptions.NetworkError: Request connection error: Cannot connect to host 0.client-channel.google.com:443 ssl:True

$ hangups --version                  
hangups 0.4.1

d3ft0uch · 2017-07-20T16:01:55Z

I've got same problem with hangups, but changing the python runtime from 3.6.2 to 3.5.2 solves the problem.

nkorth closed this as completed Nov 9, 2015

tdryer added the type-question label Nov 9, 2015

peturdainn mentioned this issue Aug 12, 2016

Cannot connect to host - revisiting issue 181 #255

Closed

littlebigbot mentioned this issue Jun 29, 2017

Can't login #339

Open

tdryer mentioned this issue Jul 17, 2018

hangups macOS 10.13.5 / Python 3.7 #419

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Cannot connect to host #181

Cannot connect to host #181

nkorth commented Nov 8, 2015

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d3ft0uch commented Jul 20, 2017

Cannot connect to host #181

Cannot connect to host #181

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nkorth commented Nov 8, 2015

nkorth commented Nov 8, 2015

tdryer commented Nov 8, 2015

nkorth commented Nov 8, 2015

tdryer commented Nov 9, 2015

nkorth commented Nov 9, 2015

tdryer commented Nov 9, 2015

nkorth commented Nov 9, 2015

ftoulemon commented Dec 2, 2016

d3ft0uch commented Jul 20, 2017