[Kimchi-devel] [PATCH] [Kimchi] Use Websocket facilities from WoK

Daniel Henrique Barboza dhbarboza82 at gmail.com
Mon Feb 27 21:30:42 UTC 2017



On 02/27/2017 09:18 AM, Lucio Correia wrote:
> Please remove dependencies on websockify from Kimchi and add to wok.

Will do that in v2.
>
> On 24/02/2017 10:45, dhbarboza82 at gmail.com wrote:
>> From: Daniel Henrique Barboza <danielhb at linux.vnet.ibm.com>
>>
>> The 'websocket' module was moved from Kimchi to WoK to allow
>> WoK and all its plug-ins to have websocket capabilities.
>>
>> This patch removes the existing websocket module inside
>> Kimchi and updates all the references to use the WoK
>> module instead.
>>
>> The initialization of the ws_proxy was also removed from
>> root.py - this process is also being done by WoK now.
>>
>> Signed-off-by: Daniel Henrique Barboza <danielhb at linux.vnet.ibm.com>
>> ---
>>  model/vms.py |   2 +-
>>  root.py      |   4 +-
>>  websocket.py | 121 
>> -----------------------------------------------------------
>>  3 files changed, 2 insertions(+), 125 deletions(-)
>>  delete mode 100644 websocket.py
>>
>> diff --git a/model/vms.py b/model/vms.py
>> index e7ed7c2..6da4f3b 100644
>> --- a/model/vms.py
>> +++ b/model/vms.py
>> @@ -36,6 +36,7 @@ from lxml import etree, objectify
>>  from lxml.builder import E
>>  from xml.etree import ElementTree
>>
>> +from wok import websocket
>>  from wok.asynctask import AsyncTask
>>  from wok.config import config
>>  from wok.exception import InvalidOperation, InvalidParameter
>> @@ -48,7 +49,6 @@ from wok.xmlutils.utils import dictize, 
>> xpath_get_text, xml_item_insert
>>  from wok.xmlutils.utils import xml_item_remove, xml_item_update
>>
>>  from wok.plugins.kimchi import model
>> -from wok.plugins.kimchi import websocket
>>  from wok.plugins.kimchi import serialconsole
>>  from wok.plugins.kimchi.config import READONLY_POOL_TYPE, 
>> get_kimchi_version
>>  from wok.plugins.kimchi.kvmusertests import UserTests
>> diff --git a/root.py b/root.py
>> index 5ba4f68..4f131e7 100644
>> --- a/root.py
>> +++ b/root.py
>> @@ -22,7 +22,7 @@ import json
>>  import os
>>  import tempfile
>>
>> -from wok.plugins.kimchi import config, mockmodel, websocket
>> +from wok.plugins.kimchi import config, mockmodel
>>  from wok.plugins.kimchi.i18n import messages
>>  from wok.plugins.kimchi.control import sub_nodes
>>  from wok.plugins.kimchi.model import model as kimchiModel
>> @@ -59,8 +59,6 @@ class Kimchi(WokRoot):
>>              cherrypy.engine.subscribe('exit', remove_objectstore)
>>          else:
>>              self.model = kimchiModel.Model()
>> -            ws_proxy = websocket.new_ws_proxy()
>> -            cherrypy.engine.subscribe('exit', ws_proxy.terminate)
>>
>>          dev_env = wok_options.environment != 'production'
>>          super(Kimchi, self).__init__(self.model, dev_env)
>> diff --git a/websocket.py b/websocket.py
>> deleted file mode 100644
>> index 6268c8a..0000000
>> --- a/websocket.py
>> +++ /dev/null
>> @@ -1,121 +0,0 @@
>> -#!/usr/bin/env python2
>> -#
>> -# Project Kimchi
>> -#
>> -# Copyright IBM Corp, 2016
>> -#
>> -# This library is free software; you can redistribute it and/or
>> -# modify it under the terms of the GNU Lesser General Public
>> -# License as published by the Free Software Foundation; either
>> -# version 2.1 of the License, or (at your option) any later version.
>> -#
>> -# This library is distributed in the hope that it will be useful,
>> -# but WITHOUT ANY WARRANTY; without even the implied warranty of
>> -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
>> -# Lesser General Public License for more details.
>> -#
>> -# You should have received a copy of the GNU Lesser General Public
>> -# License along with this library; if not, write to the Free Software
>> -# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  
>> 02110-1301 USA
>> -
>> -import base64
>> -import errno
>> -import os
>> -
>> -from multiprocessing import Process
>> -from websockify import WebSocketProxy
>> -
>> -from wok.config import config, PluginPaths
>> -
>> -
>> -try:
>> -    from websockify.token_plugins import TokenFile
>> -    tokenFile = True
>> -except ImportError:
>> -    tokenFile = False
>> -
>> -try:
>> -    from websockify import ProxyRequestHandler as request_proxy
>> -except:
>> -    from websockify import WebSocketProxy as request_proxy
>> -
>> -
>> -WS_TOKENS_DIR = os.path.join(PluginPaths('kimchi').state_dir, 
>> 'ws-tokens')
>> -
>> -
>> -class CustomHandler(request_proxy):
>> -
>> -    def get_target(self, target_plugin, path):
>> -        if issubclass(CustomHandler, object):
>> -            target = super(CustomHandler, 
>> self).get_target(target_plugin,
>> - path)
>> -        else:
>> -            target = request_proxy.get_target(self, target_plugin, 
>> path)
>> -
>> -        if target[0] == 'unix_socket':
>> -            try:
>> -                self.server.unix_target = target[1]
>> -            except:
>> -                self.unix_target = target[1]
>> -        else:
>> -            try:
>> -                self.server.unix_target = None
>> -            except:
>> -                self.unix_target = None
>> -        return target
>> -
>> -
>> -def new_ws_proxy():
>> -    try:
>> -        os.makedirs(WS_TOKENS_DIR, mode=0755)
>> -    except OSError as e:
>> -        if e.errno == errno.EEXIST:
>> -            pass
>> -
>> -    params = {'listen_host': '127.0.0.1',
>> -              'listen_port': config.get('server', 'websockets_port'),
>> -              'ssl_only': False}
>> -
>> -    # old websockify: do not use TokenFile
>> -    if not tokenFile:
>> -        params['target_cfg'] = WS_TOKENS_DIR
>> -
>> -    # websockify 0.7 and higher: use TokenFile
>> -    else:
>> -        params['token_plugin'] = TokenFile(src=WS_TOKENS_DIR)
>> -
>> -    def start_proxy():
>> -        try:
>> -            server = WebSocketProxy(RequestHandlerClass=CustomHandler,
>> -                                    **params)
>> -        except TypeError:
>> -            server = CustomHandler(**params)
>> -
>> -        server.start_server()
>> -
>> -    proc = Process(target=start_proxy)
>> -    proc.start()
>> -    return proc
>> -
>> -
>> -def add_proxy_token(name, port, is_unix_socket=False):
>> -    with open(os.path.join(WS_TOKENS_DIR, name), 'w') as f:
>> -        """
>> -        From python documentation base64.urlsafe_b64encode(s)
>> -        substitutes - instead of + and _ instead of / in the
>> -        standard Base64 alphabet, BUT the result can still
>> -        contain = which is not safe in a URL query component.
>> -        So remove it when needed as base64 can work well without it.
>> -        """
>> -        name = base64.urlsafe_b64encode(name).rstrip('=')
>> -        if is_unix_socket:
>> -            f.write('%s: unix_socket:%s' % (name.encode('utf-8'), 
>> port))
>> -        else:
>> -            f.write('%s: localhost:%s' % (name.encode('utf-8'), port))
>> -
>> -
>> -def remove_proxy_token(name):
>> -    try:
>> -        os.unlink(os.path.join(WS_TOKENS_DIR, name))
>> -    except OSError:
>> -        pass
>>
>
>



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