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f22ab085 | 1 | #!/usr/bin/python |
3fdcb9d1 MT |
2 | ############################################################################### |
3 | # # | |
4 | # ddns - A dynamic DNS client for IPFire # | |
5 | # Copyright (C) 2012 IPFire development team # | |
6 | # # | |
7 | # This program is free software: you can redistribute it and/or modify # | |
8 | # it under the terms of the GNU General Public License as published by # | |
9 | # the Free Software Foundation, either version 3 of the License, or # | |
10 | # (at your option) any later version. # | |
11 | # # | |
12 | # This program is distributed in the hope that it will be useful, # | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
15 | # GNU General Public License for more details. # | |
16 | # # | |
17 | # You should have received a copy of the GNU General Public License # | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
19 | # # | |
20 | ############################################################################### | |
f22ab085 MT |
21 | |
22 | import logging | |
23 | import logging.handlers | |
24 | import ConfigParser | |
25 | ||
26 | from i18n import _ | |
27 | ||
28 | logger = logging.getLogger("ddns.core") | |
29 | logger.propagate = 1 | |
30 | ||
adfe6272 MT |
31 | import providers |
32 | ||
f22ab085 MT |
33 | from .system import DDNSSystem |
34 | ||
35 | # Setup the logger. | |
36 | def setup_logging(): | |
37 | rootlogger = logging.getLogger("ddns") | |
4bba8ae2 | 38 | rootlogger.setLevel(logging.INFO) |
f22ab085 MT |
39 | |
40 | # Setup a logger that logs to syslog. | |
5ad24917 MT |
41 | handler = logging.handlers.SysLogHandler(address="/dev/log", |
42 | facility=logging.handlers.SysLogHandler.LOG_DAEMON | |
43 | ) | |
44 | handler.setLevel(logging.INFO) | |
45 | rootlogger.addHandler(handler) | |
f22ab085 MT |
46 | |
47 | handler = logging.StreamHandler() | |
48 | rootlogger.addHandler(handler) | |
49 | ||
50 | setup_logging() | |
51 | ||
52 | class DDNSCore(object): | |
53 | def __init__(self, debug=False): | |
54 | # In debug mode, enable debug logging. | |
55 | if debug: | |
87649e22 MT |
56 | rootlogger = logging.getLogger("ddns") |
57 | rootlogger.setLevel(logging.DEBUG) | |
87649e22 | 58 | |
4bba8ae2 | 59 | logger.debug(_("Debugging mode enabled")) |
f22ab085 MT |
60 | |
61 | # Initialize the settings array. | |
62 | self.settings = {} | |
63 | ||
64 | # Dict with all providers, that are supported. | |
adfe6272 MT |
65 | self.providers = providers.get() |
66 | ||
67 | for handle, provider in sorted(self.providers.items()): | |
68 | logger.debug("Registered new provider: %s (%s)" % (provider.name, provider.handle)) | |
f22ab085 MT |
69 | |
70 | # List of configuration entries. | |
71 | self.entries = [] | |
72 | ||
73 | # Add the system class. | |
74 | self.system = DDNSSystem(self) | |
75 | ||
2dae4713 MT |
76 | def get_provider_names(self): |
77 | """ | |
78 | Returns a list of names of all registered providers. | |
79 | """ | |
80 | return sorted(self.providers.keys()) | |
81 | ||
f22ab085 | 82 | def load_configuration(self, filename): |
332fd7cc MT |
83 | logger.debug(_("Loading configuration file %s") % filename) |
84 | ||
f22ab085 MT |
85 | configs = ConfigParser.SafeConfigParser() |
86 | configs.read([filename,]) | |
87 | ||
88 | # First apply all global configuration settings. | |
89 | for k, v in configs.items("config"): | |
90 | self.settings[k] = v | |
91 | ||
92 | for entry in configs.sections(): | |
93 | # Skip the special config section. | |
94 | if entry == "config": | |
95 | continue | |
96 | ||
97 | settings = {} | |
98 | for k, v in configs.items(entry): | |
99 | settings[k] = v | |
100 | settings["hostname"] = entry | |
101 | ||
102 | # Get the name of the provider. | |
103 | provider = settings.get("provider", None) | |
104 | if not provider: | |
105 | logger.warning("Entry '%s' lacks a provider setting. Skipping." % entry) | |
106 | continue | |
107 | ||
108 | # Try to find the provider with the wanted name. | |
109 | try: | |
110 | provider = self.providers[provider] | |
111 | except KeyError: | |
112 | logger.warning("Could not find provider '%s' for entry '%s'." % (provider, entry)) | |
113 | continue | |
114 | ||
115 | # Create an instance of the provider object with settings from the | |
116 | # configuration file. | |
117 | entry = provider(self, **settings) | |
118 | ||
119 | # Add new entry to list (if not already exists). | |
120 | if not entry in self.entries: | |
121 | self.entries.append(entry) | |
122 | ||
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123 | def updateone(self, hostname, **kwargs): |
124 | for entry in self.entries: | |
125 | if not entry.hostname == hostname: | |
126 | continue | |
127 | ||
128 | return self._update(entry, **kwargs) | |
129 | ||
130 | raise DDNSHostNotFoundError(hostname) | |
131 | ||
132 | def updateall(self, **kwargs): | |
133 | """ | |
134 | Update all configured entries. | |
135 | """ | |
f22ab085 MT |
136 | # If there are no entries, there is nothing to do. |
137 | if not self.entries: | |
138 | logger.debug(_("Found no entries in the configuration file. Exiting.")) | |
139 | return | |
140 | ||
f22ab085 | 141 | for entry in self.entries: |
1b8c6925 | 142 | self._update(entry, **kwargs) |
f22ab085 | 143 | |
1b8c6925 | 144 | def _update(self, entry, force=False): |
f22ab085 | 145 | try: |
9da3e685 | 146 | entry(force=force) |
f22ab085 | 147 | |
4689f5d3 | 148 | except DDNSError, e: |
f22ab085 MT |
149 | logger.error(_("Dynamic DNS update for %(hostname)s (%(provider)s) failed:") % \ |
150 | { "hostname" : entry.hostname, "provider" : entry.name }) | |
4689f5d3 MT |
151 | logger.error(" %s: %s" % (e.__class__.__name__, e.reason)) |
152 | if e.message: | |
153 | logger.error(" %s" % e.message) | |
f22ab085 MT |
154 | |
155 | except Exception, e: | |
156 | logger.error(_("Dynamic DNS update for %(hostname)s (%(provider)s) throwed an unhandled exception:") % \ | |
708da5a4 | 157 | { "hostname" : entry.hostname, "provider" : entry.name }, exc_info=True) |
f22ab085 | 158 | |
cbebe191 MT |
159 | else: |
160 | logger.info(_("Dynamic DNS update for %(hostname)s (%(provider)s) successful") % \ | |
161 | { "hostname" : entry.hostname, "provider" : entry.name }) |