75 lines
2.9 KiB
Python
75 lines
2.9 KiB
Python
#!/usr/bin/env python2
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#
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# PyQuarantine-Milter is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# PyQuarantine-Milter is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with PyQuarantineMilter. If not, see <http://www.gnu.org/licenses/>.
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#
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import datetime
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import json
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import logging
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import os
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from shutil import copyfileobj
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class BaseQuarantine(object):
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"Quarantine base class"
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def __init__(self, name, config, configtest=False):
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self.name = name
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self.config = config[name]
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self.global_config = config["global"]
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self.logger = logging.getLogger(__name__)
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def add(self, queueid, mailfrom, recipients, fp):
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"Add mail to quarantine."
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return ""
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class FileQuarantine(BaseQuarantine):
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"Quarantine class to store mails on filesystem."
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def __init__(self, name, config, configtest=False):
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super(FileQuarantine, self).__init__(name, config, configtest)
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# check if mandatory options are present in config
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for option in ["directory"]:
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if option not in self.config.keys() and option in self.global_config.keys():
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self.config[option] = self.global_config[option]
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if option not in self.config.keys():
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raise RuntimeError("mandatory option '{}' not present in config section '{}' or 'global'".format(option, self.name))
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self.directory = self.config["directory"]
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# check if quarantine directory exists and is writable
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if not os.path.isdir(self.directory) or not os.access(self.directory, os.W_OK):
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raise RuntimeError("file quarantine directory '{}' does not exist or is not writable".format(self.directory))
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def add(self, queueid, mailfrom, recipients, fp):
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"Add mail to file quarantine and return quarantine-id."
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super(FileQuarantine, self).add(queueid, mailfrom, recipients, fp)
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quarantine_id = "{}_{}".format(datetime.datetime.now().strftime("%Y-%m-%d_%H%M%S"), queueid)
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# save mail
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with open(os.path.join(self.directory, quarantine_id), "wb") as f:
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copyfileobj(fp, f)
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# save metadata
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metadata = {
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"from": mailfrom,
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"recipients": recipients
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}
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with open(os.path.join(self.directory, "{}.metadata".format(quarantine_id)), "wb") as f:
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json.dump(metadata, f, indent=2)
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return quarantine_id
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# list of quarantine types and their related quarantine classes
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quarantine_types = {"file": FileQuarantine}
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