63 lines
1.7 KiB
Django/Jinja
63 lines
1.7 KiB
Django/Jinja
#!/usr/bin/env python3
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import sys
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from sys import stdin, stdout
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import socket
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import sqlite3
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def setupdb():
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conn = sqlite3.connect('{{ powerdns.letsencrypthandler.dbpath }}', isolation_level=None)
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conn.executescript("""
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CREATE TABLE IF NOT EXISTS challenges (
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q TEXT NOT NULL,
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value TEXT,
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timestamp DEFAULT (strftime('%s','now'))
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)
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""")
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conn.commit()
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return conn
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def get_challenge(db, path):
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c = db.cursor()
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c.execute('SELECT value FROM challenges WHERE q = ?', (path,))
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result = c.fetchall()
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if result:
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return result
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else:
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return ['NO DATA - ' + socket.gethostname()]
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def add_challenge(db, path, value):
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c = db.cursor()
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c.execute('INSERT INTO challenges (q, value) VALUES(?, ?)', (path,value,))
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c.execute("DELETE FROM challenges WHERE timestamp < strftime('%s', datetime('now','-2 day'))")
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db.commit()
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def main_query():
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db = setupdb()
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data = stdin.readline()
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stdout.write("OK\tpdns letsencrypt handler\n")
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stdout.flush()
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while True:
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data = stdin.readline().strip()
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kind, qname, qclass, qtype, id, ip = data.split("\t")
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if qtype == "SOA":
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stdout.write("DATA\t" + qname + "\t" + qclass + "\t" + qtype + "\t300\t" + id + "\t")
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stdout.write("example.com. example.example.com. 1 1d 2h 4w 1h\n")
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else:
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for i in get_challenge(db, qname.lower()):
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stdout.write("DATA\t" + qname + "\t" + qclass + "\tTXT\t1\t" + id + '\t"' + i[0] + '"\n')
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stdout.write("LOG\tletsencrypt pipe handler got query: '" + data + "'\n")
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stdout.write("END\n")
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stdout.flush()
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def main_add_challenge():
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db = setupdb()
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add_challenge(db ,sys.argv[1], sys.argv[2])
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def main():
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if len(sys.argv) == 3:
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main_add_challenge()
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else:
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main_query()
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if __name__ == '__main__':
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main()
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