112 lines
2.8 KiB
Python
112 lines
2.8 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# workflow
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# start options main.py --dry-run --outfile file
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import requests
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import os
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import sys
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import argparse
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from ruamel.yaml import YAML, scalarstring
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class BlacklistImporter:
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def __init__(self, args):
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self.outfile = args.outfile
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self.dryrun = args.dryrun
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self.url = "https://raw.githubusercontent.com/JabberSPAM/blacklist/master/blacklist.txt"
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self.blacklist = None
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self.change = False
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def request(self):
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# check if etag header is present if not set local_etag to ""
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if os.path.isfile(".etag"):
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with open(".etag", "r") as file:
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local_etag = file.read()
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else:
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local_etag = ""
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with requests.Session() as s:
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# head request to check etag
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head = s.head(self.url)
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etag = head.headers['etag']
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# if file is present
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if os.path.isfile("blacklist.txt"):
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# if etags match up or if a connection is not possible fall back to local cache
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if local_etag == etag or head.status_code != 200:
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with open("blacklist.txt", "r", encoding="utf-8") as file:
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self.blacklist = file.readline()
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# in any other case request a new file
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else:
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r = s.get(self.url)
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r.encoding = 'utf-8'
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local_etag = head.headers['etag']
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self.blacklist = r.content.decode()
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with open("blacklist.txt", "w") as file:
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file.write(self.blacklist)
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with open('.etag', 'w') as string:
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string.write(local_etag)
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def main(self):
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# first check if blacklist is updated
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self.request()
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if self.dryrun:
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# only output the selected software and outfile
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print("outfile selected: %s" % self.outfile)
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# select ejabberd processing
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self.process()
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# reload config if changes have been applied
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if self.change:
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os.system("ejabberdctl reload_config")
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def process(self):
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# init new YAML variable
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local_file = YAML(typ="safe")
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try:
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local_file = local_file.load(open(self.outfile, "r", encoding="utf-8"))
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except FileNotFoundError:
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pass
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remote_file = {
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"acl": {
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"spamblacklist": {
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"server": []
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}
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}
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}
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for entry in self.blacklist.split():
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entry = scalarstring.DoubleQuotedScalarString(entry)
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remote_file["acl"]["spamblacklist"]["server"].append(entry)
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yml = YAML()
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yml.indent(offset=2)
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yml.default_flow_style = False
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if self.dryrun:
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# if dryrun true print expected content
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yml.dump(remote_file, sys.stdout)
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elif local_file != remote_file:
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self.change = True
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# only if the local_file and remote_file are unequal write new file
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yml.dump(remote_file, open(self.outfile, "w"))
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument('-o', '--outfile', help='set path to output file', dest='outfile', default=None)
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parser.add_argument('-dr', '--dry-run', help='perform a dry run', action='store_true', dest='dryrun', default=False)
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args = parser.parse_args()
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# run
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BlacklistImporter(args).main()
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