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