1 | # -*- coding: utf-8 -*- |
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2 | # |
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3 | # This file is part of Glances. |
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4 | # |
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5 | # SPDX-FileCopyrightText: 2022 Nicolas Hennion <[email protected]> |
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6 | # |
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7 | # SPDX-License-Identifier: LGPL-3.0-only |
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8 | # |
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9 | |||
10 | """Manage the Glances ports list (Ports plugin).""" |
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11 | |||
12 | from glances.compat import range |
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13 | from glances.logger import logger |
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14 | from glances.globals import BSD |
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15 | |||
16 | # XXX *BSDs: Segmentation fault (core dumped) |
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17 | # -- https://bitbucket.org/al45tair/netifaces/issues/15 |
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18 | # Also used in the glances_ip plugin |
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19 | if not BSD: |
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20 | try: |
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21 | import netifaces |
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22 | |||
23 | netifaces_tag = True |
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24 | except ImportError: |
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25 | netifaces_tag = False |
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26 | else: |
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27 | netifaces_tag = False |
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28 | |||
29 | |||
30 | class GlancesPortsList(object): |
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31 | |||
32 | """Manage the ports list for the ports plugin.""" |
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33 | |||
34 | _section = "ports" |
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35 | _default_refresh = 60 |
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36 | _default_timeout = 3 |
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37 | |||
38 | def __init__(self, config=None, args=None): |
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39 | # ports_list is a list of dict (JSON compliant) |
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40 | # [Â {'host': 'www.google.fr', 'port': 443, 'refresh': 30, 'description': Internet, 'status': True} ... ] |
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41 | # Load the configuration file |
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42 | self._ports_list = self.load(config) |
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43 | |||
44 | def load(self, config): |
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45 | """Load the ports list from the configuration file.""" |
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46 | ports_list = [] |
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47 | |||
48 | if config is None: |
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49 | logger.debug("No configuration file available. Cannot load ports list.") |
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50 | elif not config.has_section(self._section): |
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51 | logger.debug("No [%s] section in the configuration file. Cannot load ports list." % self._section) |
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52 | else: |
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53 | logger.debug("Start reading the [%s] section in the configuration file" % self._section) |
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54 | |||
55 | refresh = int(config.get_value(self._section, 'refresh', default=self._default_refresh)) |
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56 | timeout = int(config.get_value(self._section, 'timeout', default=self._default_timeout)) |
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57 | |||
58 | # Add default gateway on top of the ports_list lists |
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59 | default_gateway = config.get_value(self._section, 'port_default_gateway', default='False') |
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60 | if default_gateway.lower().startswith('true') and netifaces_tag: |
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61 | new_port = {} |
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62 | try: |
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63 | new_port['host'] = netifaces.gateways()['default'][netifaces.AF_INET][0] |
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64 | except KeyError: |
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65 | new_port['host'] = None |
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66 | # ICMP |
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67 | new_port['port'] = 0 |
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68 | new_port['description'] = 'DefaultGateway' |
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69 | new_port['refresh'] = refresh |
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70 | new_port['timeout'] = timeout |
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71 | new_port['status'] = None |
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72 | new_port['rtt_warning'] = None |
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73 | new_port['indice'] = str('port_0') |
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74 | logger.debug("Add default gateway %s to the static list" % (new_port['host'])) |
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75 | ports_list.append(new_port) |
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76 | |||
77 | # Read the scan list |
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78 | for i in range(1, 256): |
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79 | new_port = {} |
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80 | postfix = 'port_%s_' % str(i) |
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81 | |||
82 | # Read mandatory configuration key: host |
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83 | new_port['host'] = config.get_value(self._section, '%s%s' % (postfix, 'host')) |
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84 | |||
85 | if new_port['host'] is None: |
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86 | continue |
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87 | |||
88 | # Read optionals configuration keys |
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89 | # Port is set to 0 by default. 0 mean ICMP check instead of TCP check |
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90 | new_port['port'] = config.get_value(self._section, '%s%s' % (postfix, 'port'), 0) |
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91 | new_port['description'] = config.get_value( |
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92 | self._section, '%sdescription' % postfix, default="%s:%s" % (new_port['host'], new_port['port']) |
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93 | ) |
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94 | |||
95 | # Default status |
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96 | new_port['status'] = None |
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97 | |||
98 | # Refresh rate in second |
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99 | new_port['refresh'] = refresh |
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100 | |||
101 | # Timeout in second |
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102 | new_port['timeout'] = int(config.get_value(self._section, '%stimeout' % postfix, default=timeout)) |
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103 | |||
104 | # RTT warning |
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105 | new_port['rtt_warning'] = config.get_value(self._section, '%srtt_warning' % postfix, default=None) |
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106 | if new_port['rtt_warning'] is not None: |
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107 | # Convert to second |
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108 | new_port['rtt_warning'] = int(new_port['rtt_warning']) / 1000.0 |
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109 | |||
110 | # Indice |
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111 | new_port['indice'] = 'port_' + str(i) |
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112 | |||
113 | # Add the server to the list |
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114 | logger.debug("Add port %s:%s to the static list" % (new_port['host'], new_port['port'])) |
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115 | ports_list.append(new_port) |
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116 | |||
117 | # Ports list loaded |
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118 | logger.debug("Ports list loaded: %s" % ports_list) |
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119 | |||
120 | return ports_list |
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121 | |||
122 | def get_ports_list(self): |
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123 | """Return the current server list (dict of dict).""" |
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124 | return self._ports_list |
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125 | |||
126 | def set_server(self, pos, key, value): |
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127 | """Set the key to the value for the pos (position in the list).""" |
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128 | self._ports_list[pos][key] = value |
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129 |