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Diff Revisions a29e91 ... vs e36e52 ... for src/backend.py

		@@ -1,35 +1,41 @@
1	1		#!/usr/bin/python
2	2
3		-	import sys
4		-	import re
5		-	import os
6	3		import ConfigParser
	4	+	import os
	5	+	import re
	6	+	import sys
	7	+
	8	+	DEBUG = 0
7	9
8		-	DEBUG=0
9	10
10	11		def log(msg):
11	12		sys.stderr.write('backend (%s): %s\n' % (os.getpid(), msg))
12	13
13	14
14	15		def write(*l):
15		-	args=len(l)
	16	+	args = len(l)
16	17		c = 0
17	18		for a in l:
18	19		c += 1
19		-	if DEBUG: log('writing: %s' % a)
	20	+	if DEBUG:
	21	+	log('writing: %s' % a)
20	22		sys.stdout.write(a)
21	23		if c < args:
22		-	if DEBUG: log('writetab')
	24	+	if DEBUG:
	25	+	log('writetab')
23	26		sys.stdout.write('\t')
24		-	if DEBUG: log('writenewline')
	27	+	if DEBUG:
	28	+	log('writenewline')
25	29		sys.stdout.write('\n')
26	30		sys.stdout.flush()
27	31
28	32
29	33		def get_next():
30		-	if DEBUG: log('reading now')
	34	+	if DEBUG:
	35	+	log('reading now')
31	36		l = sys.stdin.readline()
32		-	if DEBUG: log('read line: %s' % l)
	37	+	if DEBUG:
	38	+	log('read line: %s' % l)
33	39		return l.strip().split('\t')
34	40
35	41
		@@ -47,18 +53,18 @@
47	53		if not os.path.exists(fname):
48	54		log('%s does not exist' % fname)
49	55		sys.exit(1)
50		-
	56	+
51	57		fp = open(fname)
52	58		config = ConfigParser.ConfigParser()
53	59		config.readfp(fp)
54	60		fp.close()
55	61
56	62		self.id = config.get('soa', 'id')
57		-	self.soa = '%s %s %s' % (config.get('soa', 'ns'), config.get('soa','hostmaster'), self.id)
	63	+	self.soa = '%s %s %s' % (config.get('soa', 'ns'), config.get('soa', 'hostmaster'), self.id)
58	64		self.domain = config.get('main', 'domain')
59	65		self.ip_address = config.get('main', 'ipaddress')
60	66		self.ttl = config.get('main', 'ttl')
61		-
	67	+
62	68		for entry in config.items('nameservers'):
63	69		self.name_servers[entry[0]] = entry[1]
64	70
		@@ -80,7 +86,8 @@
80	86
81	87		while True:
82	88		cmd = get_next()
83		-	if DEBUG: log(cmd)
	89	+	if DEBUG:
	90	+	log(cmd)
84	91
85	92		if len(cmd) < 6:
86	93		log('did not understand: %s' % cmd)
		@@ -108,24 +115,28 @@
108	115		write('END')
109	116
110	117		def handle_subdomains(self, qname):
111		-	subdomain = qname[0:qname.find(self.domain)-1]
	118	+	subdomain = qname[0:qname.find(self.domain) - 1]
112	119
113	120		subparts = subdomain.split('.')
114	121		if len(subparts) < 4:
115		-	if DEBUG: log('subparts less than 4')
	122	+	if DEBUG:
	123	+	log('subparts less than 4')
116	124		self.handle_self(qname)
117	125		return
118	126
119	127		ipaddress = subparts[-4:]
120		-	if DEBUG: log('ip: %s' % ipaddress)
	128	+	if DEBUG:
	129	+	log('ip: %s' % ipaddress)
121	130		for part in ipaddress:
122	131		if re.match('^\d{1,3}$', part) is None:
123		-	if DEBUG: log('%s is not a number' % part)
	132	+	if DEBUG:
	133	+	log('%s is not a number' % part)
124	134		self.handle_self(qname)
125	135		return
126	136		parti = int(part)
127	137		if parti < 0 or parti > 255:
128		-	if DEBUG: log('%d is too big/small' % parti)
	138	+	if DEBUG:
	139	+	log('%d is too big/small' % parti)
129	140		self.handle_self(qname)
130	141		return
131	142
		@@ -152,8 +163,6 @@
152	163
153	164
154	165		if __name__ == '__main__':
155		-
156	166		backend = DynamicBackend()
157	167		backend.configure()
158	168		backend.run()
159		-

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