commit 92efbd421ea11200aded351282e900986492cbbf
Author: nico <nico@magicbroccoli.de>
Date:   Fri Dec 21 20:49:15 2018 +0100

    Initial Commit
    
    + request working
    + ejabberd working

diff --git a/main.py b/main.py
new file mode 100644
index 0000000..6608a85
--- /dev/null
+++ b/main.py
@@ -0,0 +1,112 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# workflow
+# start options main.py --ejabberd/prosody --dry-run --outfile file
+
+import requests
+import sys
+import os
+import argparse
+import yaml
+
+
+class BlacklistImporter:
+	def __init__(self, args):
+		self.server = args.software
+		self.outfile = args.outfile
+		self.dryrun = args.dryrun
+		self.url = "https://raw.githubusercontent.com/JabberSPAM/blacklist/master/blacklist.txt"
+		self.blacklist = None
+
+	def request(self):
+		# check if etag header is present if not set local_etag to ""
+		if os.path.isfile(".etag"):
+			with open(".etag") as file:
+				local_etag = file.read()
+		else:
+			local_etag = ""
+
+		with requests.Session() as s:
+			# head request to check etag
+			head = s.head(self.url)
+			etag = head.headers['etag']
+
+			# compare etag with local_etag if they match up no request is made
+			if local_etag == etag:
+				with open("blacklist.txt", "r") as file:
+					self.blacklist = file.readline()
+
+			# if the connection is not possible use cached xml if present
+			elif os.path.isfile("blacklist.txt") and head.status_code != 200:
+				with open("blacklist.txt", "r") as file:
+					self.blacklist = file.readline()
+
+			# in any other case request a new file
+			else:
+				r = s.get(self.url)
+				r.encoding = 'utf-8'
+				local_etag = head.headers['etag']
+
+				with open("blacklist.txt", "w") as file:
+					file.write(r.content.decode())
+
+				with open('.etag', 'w') as string:
+					string.write(local_etag)
+
+	def main(self):
+		# first check if blacklist is updated
+		self.request()
+
+		if self.dryrun:
+			# only output the selected software and outfile
+			print("server software selected: %s" % self.server)
+			print("outfile selected: %s" % self.outfile)
+
+		if self.server == "ejabberd":
+			# select ejabberd processing
+			self.ejabberd()
+
+		elif self.server == "prosody":
+			# select prosody processing
+			self.prosody()
+		else:
+			# in any other case exit
+			sys.exit(3)
+
+	def ejabberd(self):
+		# check if file was altered
+		local_file = yaml.load(open(self.outfile, "r"))
+
+		remote_file = {
+			"acl": {
+				"spamblacklist": {
+					"server": []
+				}
+			}
+		}
+
+		for entry in self.blacklist.split():
+			remote_file["acl"]["spamblacklist"]["server"].append(entry)
+
+		if self.dryrun:
+			print(yaml.dump(remote_file))
+
+		elif local_file != remote_file:
+			yaml.dump(remote_file, open(self.outfile, "w"))
+
+	def prosody(self):
+		pass
+
+
+if __name__ == "__main__":
+	parser = argparse.ArgumentParser()
+	parser.add_argument('-e', '--ejabberd', help='set server software to ejabberd', action='store_const', dest='software',
+						const="ejabberd", default=None)
+	parser.add_argument('-p', '--prosody', help='set server software to prosody', action='store_const', dest='software',
+						const="prosody", default=None)
+	parser.add_argument('-o', '--outfile', help='set path to output file', dest='outfile', default=None)
+	parser.add_argument('--dry-run', help='perform only a dry run', action='store_true', dest='dryrun', default=False)
+	args = parser.parse_args()
+
+	BlacklistImporter(args).main()