connectors/PYRO/__init__.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 11 Oct 2017 13:15:21 +0300
changeset 1868 616c3f4bcbcb
parent 1847 6198190bc121
child 1881 091005ec69c4
permissions -rwxr-xr-x
fix pylint error '(no-self-argument) Method should have "self" as first argument'
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     1
#!/usr/bin/env python
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     2
# -*- coding: utf-8 -*-
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     3
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     4
# This file is part of Beremiz, a Integrated Development Environment for
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     5
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     6
#
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     7
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     8
#
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
     9
# See COPYING file for copyrights details.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    10
#
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    11
# This program is free software; you can redistribute it and/or
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    12
# modify it under the terms of the GNU General Public License
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    13
# as published by the Free Software Foundation; either version 2
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    14
# of the License, or (at your option) any later version.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    15
#
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    16
# This program is distributed in the hope that it will be useful,
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    17
# but WITHOUT ANY WARRANTY; without even the implied warranty of
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    18
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    19
# GNU General Public License for more details.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    20
#
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    21
# You should have received a copy of the GNU General Public License
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    22
# along with this program; if not, write to the Free Software
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    23
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    24
1826
91796f408540 fix usage of python2-only print statement
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1783
diff changeset
    25
91796f408540 fix usage of python2-only print statement
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1783
diff changeset
    26
from __future__ import print_function
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    27
import traceback
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    28
from time import sleep
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    29
import copy
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    30
import socket
1783
3311eea28d56 clean-up: fix PEP8 E402 module level import not at top of file
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1750
diff changeset
    31
import os.path
3311eea28d56 clean-up: fix PEP8 E402 module level import not at top of file
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1750
diff changeset
    32
1832
0f1081928d65 fix wrong-import-order. first standard modules are imported, then others
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1830
diff changeset
    33
import Pyro
0f1081928d65 fix wrong-import-order. first standard modules are imported, then others
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1830
diff changeset
    34
import Pyro.core
0f1081928d65 fix wrong-import-order. first standard modules are imported, then others
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1830
diff changeset
    35
import Pyro.util
0f1081928d65 fix wrong-import-order. first standard modules are imported, then others
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1830
diff changeset
    36
from Pyro.errors import PyroError
0f1081928d65 fix wrong-import-order. first standard modules are imported, then others
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1830
diff changeset
    37
0f1081928d65 fix wrong-import-order. first standard modules are imported, then others
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1830
diff changeset
    38
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    39
service_type = '_PYRO._tcp.local.'
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    40
# this module attribute contains a list of DNS-SD (Zeroconf) service types
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    41
# supported by this connector confnode.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    42
#
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    43
# for connectors that do not support DNS-SD, this attribute can be omitted
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    44
# or set to an empty list.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    45
1736
7e61baa047f0 clean-up: fix PEP8 E302 expected 2 blank lines, found 1
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1731
diff changeset
    46
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    47
def PYRO_connector_factory(uri, confnodesroot):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    48
    """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    49
    This returns the connector to Pyro style PLCobject
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    50
    """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    51
    confnodesroot.logger.write(_("PYRO connecting to URI : %s\n") % uri)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    52
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    53
    servicetype, location = uri.split("://")
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    54
    if servicetype == "PYROS":
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    55
        schemename = "PYROLOCSSL"
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    56
        # Protect against name->IP substitution in Pyro3
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    57
        Pyro.config.PYRO_DNS_URI = True
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    58
        # Beware Pyro lib need str path, not unicode
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    59
        # don't rely on PYRO_STORAGE ! see documentation
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    60
        Pyro.config.PYROSSL_CERTDIR = os.path.abspath(str(confnodesroot.ProjectPath) + '/certs')
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    61
        if not os.path.exists(Pyro.config.PYROSSL_CERTDIR):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    62
            confnodesroot.logger.write_error(
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    63
                'Error : the directory %s is missing for SSL certificates (certs_dir).'
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    64
                'Please fix it in your project.\n' % Pyro.config.PYROSSL_CERTDIR)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    65
            return None
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    66
        else:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    67
            confnodesroot.logger.write(_("PYRO using certificates in '%s' \n")
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    68
                                       % (Pyro.config.PYROSSL_CERTDIR))
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    69
        Pyro.config.PYROSSL_CERT = "client.crt"
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    70
        Pyro.config.PYROSSL_KEY = "client.key"
1750
acf02488f37f clean-up: fix PEP8 E306 expected 1 blank line before a nested definition, found X
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1744
diff changeset
    71
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    72
        # Ugly Monkey Patching
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    73
        def _gettimeout(self):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    74
            return self.timeout
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    75
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    76
        def _settimeout(self, timeout):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    77
            self.timeout = timeout
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    78
        from M2Crypto.SSL import Connection
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    79
        Connection.timeout = None
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    80
        Connection.gettimeout = _gettimeout
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    81
        Connection.settimeout = _settimeout
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    82
        # M2Crypto.SSL.Checker.WrongHost: Peer certificate commonName does not
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    83
        # match host, expected 127.0.0.1, got server
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    84
        Connection.clientPostConnectionCheck = None
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    85
    else:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    86
        schemename = "PYROLOC"
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    87
    if location.find(service_type) != -1:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    88
        try:
1830
e598d1acf354 remove in-tree version of Zeroconf and use upstream from
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1826
diff changeset
    89
            from zeroconf import Zeroconf
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    90
            r = Zeroconf()
1830
e598d1acf354 remove in-tree version of Zeroconf and use upstream from
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1826
diff changeset
    91
            i = r.get_service_info(service_type, location)
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    92
            if i is None:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    93
                raise Exception("'%s' not found" % location)
1830
e598d1acf354 remove in-tree version of Zeroconf and use upstream from
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1826
diff changeset
    94
            ip = str(socket.inet_ntoa(i.address))
e598d1acf354 remove in-tree version of Zeroconf and use upstream from
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1826
diff changeset
    95
            port = str(i.port)
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    96
            newlocation = ip + ':' + port
1744
69dfdb26f600 clean-up: fix PEP8 E251 unexpected spaces around keyword / parameter equals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1736
diff changeset
    97
            confnodesroot.logger.write(_("'{a1}' is located at {a2}\n").format(a1=location, a2=newlocation))
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    98
            location = newlocation
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
    99
            r.close()
1846
14b40afccd69 remove unused variables found by pylint
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1837
diff changeset
   100
        except Exception:
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   101
            confnodesroot.logger.write_error(_("MDNS resolution failure for '%s'\n") % location)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   102
            confnodesroot.logger.write_error(traceback.format_exc())
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   103
            return None
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   104
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   105
    # Try to get the proxy object
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   106
    try:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   107
        RemotePLCObjectProxy = Pyro.core.getAttrProxyForURI(schemename + "://" + location + "/PLCObject")
1846
14b40afccd69 remove unused variables found by pylint
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1837
diff changeset
   108
    except Exception:
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   109
        confnodesroot.logger.write_error(_("Connection to '%s' failed.\n") % location)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   110
        confnodesroot.logger.write_error(traceback.format_exc())
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   111
        return None
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   112
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   113
    def PyroCatcher(func, default=None):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   114
        """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   115
        A function that catch a Pyro exceptions, write error to logger
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   116
        and return default value when it happen
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   117
        """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   118
        def catcher_func(*args, **kwargs):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   119
            try:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   120
                return func(*args, **kwargs)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   121
            except Pyro.errors.ConnectionClosedError, e:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   122
                confnodesroot.logger.write_error(_("Connection lost!\n"))
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   123
                confnodesroot._SetConnector(None)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   124
            except Pyro.errors.ProtocolError, e:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   125
                confnodesroot.logger.write_error(_("Pyro exception: %s\n") % e)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   126
            except Exception, e:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   127
                # confnodesroot.logger.write_error(traceback.format_exc())
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   128
                errmess = ''.join(Pyro.util.getPyroTraceback(e))
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   129
                confnodesroot.logger.write_error(errmess + "\n")
1826
91796f408540 fix usage of python2-only print statement
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1783
diff changeset
   130
                print(errmess)
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   131
                confnodesroot._SetConnector(None)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   132
            return default
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   133
        return catcher_func
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   134
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   135
    # Check connection is effective.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   136
    # lambda is for getattr of GetPLCstatus to happen inside catcher
1833
2269739dd098 fix unnecessary lambda and enable corresponding pylint check
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1832
diff changeset
   137
    if PyroCatcher(RemotePLCObjectProxy.GetPLCstatus)() is None:
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   138
        confnodesroot.logger.write_error(_("Cannot get PLC status - connection failed.\n"))
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   139
        return None
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   140
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   141
    class PyroProxyProxy(object):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   142
        """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   143
        A proxy proxy class to handle Beremiz Pyro interface specific behavior.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   144
        And to put Pyro exception catcher in between caller and Pyro proxy
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   145
        """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   146
        def __init__(self):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   147
            # for safe use in from debug thread, must create a copy
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   148
            self.RemotePLCObjectProxyCopy = None
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   149
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   150
        def GetPyroProxy(self):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   151
            """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   152
            This func returns the real Pyro Proxy.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   153
            Use this if you musn't keep reference to it.
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   154
            """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   155
            return RemotePLCObjectProxy
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   156
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   157
        def _PyroStartPLC(self, *args, **kwargs):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   158
            """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   159
            confnodesroot._connector.GetPyroProxy() is used
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   160
            rather than RemotePLCObjectProxy because
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   161
            object is recreated meanwhile,
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   162
            so we must not keep ref to it here
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   163
            """
1847
6198190bc121 explicitly mark unused variables found by pylint with _ or dummy
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1846
diff changeset
   164
            current_status, _log_count = confnodesroot._connector.GetPyroProxy().GetPLCstatus()
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   165
            if current_status == "Dirty":
1837
c507c363625e fix pylint warning '(pointless-string-statement) String statement has no effect'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1833
diff changeset
   166
                # Some bad libs with static symbols may polute PLC
c507c363625e fix pylint warning '(pointless-string-statement) String statement has no effect'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1833
diff changeset
   167
                # ask runtime to suicide and come back again
c507c363625e fix pylint warning '(pointless-string-statement) String statement has no effect'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1833
diff changeset
   168
1731
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   169
                confnodesroot.logger.write(_("Force runtime reload\n"))
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   170
                confnodesroot._connector.GetPyroProxy().ForceReload()
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   171
                confnodesroot._Disconnect()
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   172
                # let remote PLC time to resurect.(freeze app)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   173
                sleep(0.5)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   174
                confnodesroot._Connect()
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   175
            self.RemotePLCObjectProxyCopy = copy.copy(confnodesroot._connector.GetPyroProxy())
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   176
            return confnodesroot._connector.GetPyroProxy().StartPLC(*args, **kwargs)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   177
        StartPLC = PyroCatcher(_PyroStartPLC, False)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   178
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   179
        def _PyroGetTraceVariables(self):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   180
            """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   181
            for safe use in from debug thread, must use the copy
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   182
            """
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   183
            if self.RemotePLCObjectProxyCopy is None:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   184
                self.RemotePLCObjectProxyCopy = copy.copy(confnodesroot._connector.GetPyroProxy())
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   185
            return self.RemotePLCObjectProxyCopy.GetTraceVariables()
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   186
        GetTraceVariables = PyroCatcher(_PyroGetTraceVariables, ("Broken", None))
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   187
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   188
        def _PyroGetPLCstatus(self):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   189
            return RemotePLCObjectProxy.GetPLCstatus()
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   190
        GetPLCstatus = PyroCatcher(_PyroGetPLCstatus, ("Broken", None))
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   191
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   192
        def _PyroRemoteExec(self, script, **kwargs):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   193
            return RemotePLCObjectProxy.RemoteExec(script, **kwargs)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   194
        RemoteExec = PyroCatcher(_PyroRemoteExec, (-1, "RemoteExec script failed!"))
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   195
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   196
        def __getattr__(self, attrName):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   197
            member = self.__dict__.get(attrName, None)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   198
            if member is None:
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   199
                def my_local_func(*args, **kwargs):
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   200
                    return RemotePLCObjectProxy.__getattr__(attrName)(*args, **kwargs)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   201
                member = PyroCatcher(my_local_func, None)
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   202
                self.__dict__[attrName] = member
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   203
            return member
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   204
6ebd9c40b2be convert some files from CRLF to LF
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1595
diff changeset
   205
    return PyroProxyProxy()