source: genesis/tools/gformat.py@ 10162

Last change on this file since 10162 was 10162, checked in by rick, 13 years ago

a) Fix IP assignment for wlan0.

b) fixed IP assignment for normal aliases.
  • Property svn:executable set to *
  • Property svn:keywords set to Id
File size: 31.3 KB
Line 
1#!/usr/bin/env python
2#
3# vim:ts=2:et:sw=2:ai
4# Wireless Leiden configuration generator, based on yaml files'
5#
6# XXX: This should be rewritten to make use of the ipaddr.py library.
7#
8# Sample apache configuration (mind the AcceptPathInfo!)
9# ScriptAlias /wleiden/config /usr/local/www/genesis/tools/gformat.py
10# <Directory /usr/local/www/genesis>
11# Allow from all
12# AcceptPathInfo On
13# </Directory>
14#
15# Rick van der Zwet <info@rickvanderzwet.nl>
16#
17
18# Hack to make the script directory is also threated as a module search path.
19import sys
20import os
21import re
22sys.path.append(os.path.dirname(__file__))
23
24import cgi
25import cgitb
26import copy
27import glob
28import socket
29import string
30import subprocess
31import time
32import rdnap
33from pprint import pprint
34try:
35 import yaml
36except ImportError, e:
37 print e
38 print "[ERROR] Please install the python-yaml or devel/py-yaml package"
39 exit(1)
40
41try:
42 from yaml import CLoader as Loader
43 from yaml import CDumper as Dumper
44except ImportError:
45 from yaml import Loader, Dumper
46
47from jinja2 import Template
48
49import logging
50logging.basicConfig(format='# %(levelname)s: %(message)s' )
51logger = logging.getLogger()
52logger.setLevel(logging.DEBUG)
53
54
55if os.environ.has_key('CONFIGROOT'):
56 NODE_DIR = os.environ['CONFIGROOT']
57else:
58 NODE_DIR = os.path.abspath(os.path.dirname(__file__)) + '/../nodes'
59__version__ = '$Id: gformat.py 10162 2012-03-14 14:13:19Z rick $'
60
61
62files = [
63 'authorized_keys',
64 'dnsmasq.conf',
65 'rc.conf.local',
66 'resolv.conf',
67 'motd',
68 'wleiden.yaml',
69 ]
70
71# Global variables uses
72OK = 10
73DOWN = 20
74UNKNOWN = 90
75
76
77def get_proxylist():
78 """Get all available proxies proxyX sorting based on X number"""
79 proxylist = sorted([os.path.basename(x) for x in glob.glob("%s/proxy*" % NODE_DIR)],
80 key=lambda name: int(''.join([c for c in name if c in string.digits])),
81 cmp=lambda x,y: x - y)
82 return proxylist
83
84
85
86def valid_addr(addr):
87 """ Show which address is valid in which are not """
88 return str(addr).startswith('172.')
89
90
91def get_nodelist():
92 """ Get all available nodes - sorted """
93 nodelist = sorted([os.path.basename(x) for x in glob.glob("%s/CNode*" % NODE_DIR)])
94 return nodelist
95
96def get_hostlist():
97 """ Combined hosts and proxy list"""
98 return get_nodelist() + get_proxylist()
99
100def angle_between_points(lat1,lat2,long1,long2):
101 """
102 Return Angle in radians between two GPS coordinates
103 See: http://stackoverflow.com/questions/3809179/angle-between-2-gps-coordinates
104 """
105 dy = lat2 - lat1
106 dx = math.cos(math.pi/180*lat1)*(long2 - long1)
107 angle = math.atan2(dy,dx)
108 return angle
109
110def angle_to_cd(angle):
111 """ Return Dutch Cardinal Direction estimation in 'one digit' of radian angle """
112
113 # For easy conversion get positive degree
114 degrees = math.degrees(angle)
115 if degrees < 0:
116 360 - abs(degrees)
117
118 # Numbers can be confusing calculate from the 4 main directions
119 p = 22.5
120 if degrees < p:
121 return "n"
122 elif degrees < (90 - p):
123 return "no"
124 elif degrees < (90 + p):
125 return "o"
126 elif degrees < (180 - p):
127 return "zo"
128 elif degrees < (180 + p):
129 return "z"
130 elif degrees < (270 - p):
131 return "zw"
132 elif degrees < (270 + p):
133 return "w"
134 elif degrees < (360 - p):
135 return "nw"
136 else:
137 return "n"
138
139
140def generate_title(nodelist):
141 """ Main overview page """
142 items = {'root' : "." }
143 output = """
144<html>
145 <head>
146 <title>Wireless leiden Configurator - GFormat</title>
147 <style type="text/css">
148 th {background-color: #999999}
149 tr:nth-child(odd) {background-color: #cccccc}
150 tr:nth-child(even) {background-color: #ffffff}
151 th, td {padding: 0.1em 1em}
152 </style>
153 </head>
154 <body>
155 <center>
156 <form type="GET" action="%(root)s">
157 <input type="hidden" name="action" value="update">
158 <input type="submit" value="Update Configuration Database (SVN)">
159 </form>
160 <table>
161 <caption><h3>Wireless Leiden Configurator</h3></caption>
162 """ % items
163
164 for node in nodelist:
165 items['node'] = node
166 output += '<tr><td><a href="%(root)s/%(node)s">%(node)s</a></td>' % items
167 for config in files:
168 items['config'] = config
169 output += '<td><a href="%(root)s/%(node)s/%(config)s">%(config)s</a></td>' % items
170 output += "</tr>"
171 output += """
172 </table>
173 <hr />
174 <em>%s</em>
175 </center>
176 </body>
177</html>
178 """ % __version__
179
180 return output
181
182
183
184def generate_node(node):
185 """ Print overview of all files available for node """
186 return "\n".join(files)
187
188
189
190def generate_header(ctag="#"):
191 return """\
192%(ctag)s
193%(ctag)s DO NOT EDIT - Automatically generated by 'gformat'
194%(ctag)s Generated at %(date)s by %(host)s
195%(ctag)s
196""" % { 'ctag' : ctag, 'date' : time.ctime(), 'host' : socket.gethostname() }
197
198
199
200def parseaddr(s):
201 """ Process IPv4 CIDR notation addr to a (binary) number """
202 f = s.split('.')
203 return (long(f[0]) << 24L) + \
204 (long(f[1]) << 16L) + \
205 (long(f[2]) << 8L) + \
206 long(f[3])
207
208
209
210def showaddr(a):
211 """ Display IPv4 addr in (dotted) CIDR notation """
212 return "%d.%d.%d.%d" % ((a >> 24) & 0xff, (a >> 16) & 0xff, (a >> 8) & 0xff, a & 0xff)
213
214
215def is_member(ip, mask, canidate):
216 """ Return True if canidate is part of ip/mask block"""
217 ip_addr = gformat.parseaddr(ip)
218 ip_canidate = gformat.parseaddr(canidate)
219 mask = int(mask)
220 ip_addr = ip_addr & ~((1 << (32 - mask)) - 1)
221 ip_canidate = ip_canidate & ~((1 << (32 - mask)) - 1)
222 return ip_addr == ip_canidate
223
224
225
226
227def netmask2subnet(netmask):
228 """ Given a 'netmask' return corresponding CIDR """
229 return showaddr(0xffffffff & (0xffffffff << (32 - int(netmask))))
230
231
232
233def generate_dnsmasq_conf(datadump):
234 """ Generate configuration file '/usr/local/etc/dnsmasq.conf' """
235 output = generate_header()
236 output += """\
237# DHCP server options
238dhcp-authoritative
239dhcp-fqdn
240domain=dhcp.%(nodename_lower)s.%(domain)s
241domain-needed
242expand-hosts
243log-async=100
244
245# Low memory footprint
246cache-size=10000
247 \n""" % datadump
248
249 for iface_key in datadump['iface_keys']:
250 if not datadump[iface_key].has_key('comment'):
251 datadump[iface_key]['comment'] = None
252 output += "## %(interface)s - %(desc)s - %(comment)s\n" % datadump[iface_key]
253
254 try:
255 (dhcp_start, dhcp_stop) = datadump[iface_key]['dhcp'].split('-')
256 (ip, netmask) = datadump[iface_key]['ip'].split('/')
257 datadump[iface_key]['subnet'] = netmask2subnet(netmask)
258 except (AttributeError, ValueError):
259 output += "# not autoritive\n\n"
260 continue
261
262 dhcp_part = ".".join(ip.split('.')[0:3])
263 datadump[iface_key]['dhcp_start'] = dhcp_part + "." + dhcp_start
264 datadump[iface_key]['dhcp_stop'] = dhcp_part + "." + dhcp_stop
265 output += "dhcp-range=%(interface)s,%(dhcp_start)s,%(dhcp_stop)s,%(subnet)s,24h\n\n" % datadump[iface_key]
266
267 return output
268
269
270
271def generate_rc_conf_local(datadump):
272 """ Generate configuration file '/etc/rc.conf.local' """
273 datadump['autogen_ileiden_enable'] = 'yes' if datadump['ileiden'] else 'no'
274
275 ileiden_proxies = []
276 for proxy in get_proxylist():
277 proxydump = get_yaml(proxy)
278 if proxydump['ileiden']:
279 ileiden_proxies.append(proxydump)
280 datadump['autogen_ileiden_proxies'] = ','.join([x['masterip'] for x in ileiden_proxies])
281 datadump['autogen_ileiden_proxies_names'] = ','.join([x['autogen_item'] for x in ileiden_proxies])
282
283 output = generate_header("#");
284 output += Template("""\
285hostname='{{ autogen_fqdn }}.{{ domain }}'
286location='{{ location }}'
287nodetype="{{ nodetype }}"
288
289{% if tproxy -%}
290tproxy_enable='YES'
291tproxy_range='{{ tproxy }}'
292{% else -%}
293tproxy_enable='NO'
294{% endif -%}
295
296{% if nodetype == "Proxy" %}
297#
298# PROXY Configuration
299#
300sshtun_enable="YES"
301sshtun_flags="-R 22{{ "%02i"|format(proxyid) }}:localhost:22"
302
303static_routes="wleiden"
304route_wleiden="-net 172.16.0.0/12 {{ internalroute }}"
305{% if gateway -%}
306defaultrouter="{{ gateway }}"
307{% else -%}
308#defaultrouter="NOTSET"
309{% endif -%}
310
311internalif="{{ internalif }}"
312
313# PROXY iLeiden Configuration
314lvrouted_enable="{{ autogen_ileiden_enable }}"
315lvrouted_flags="-u -s s00p3rs3kr3t -m 28"
316ileiden_enable="{{ autogen_ileiden_enable }}"
317gateway_enable="{{ autogen_ileiden_enable }}"
318firewall_enable="{{ autogen_ileiden_enable }}"
319firewall_script="/etc/ipfw.sh"
320firewall_nat_enable="{{ autogen_ileiden_enable }}"
321{% endif -%}
322
323{% if nodetype == "CNode" %}
324#
325# NODE iLeiden Configuration
326#
327# iLeiden Proxies {{ autogen_ileiden_proxies_names }}
328lvrouted_flags="-u -s s00p3rs3kr3t -m 28 -z {{ autogen_ileiden_proxies }}"
329
330captive_portal_whitelist=""
331captive_portal_interfaces="{{ autogen_dhcp_interfaces }}"
332{% endif %}
333
334""").render(datadump)
335
336 # lo0 configuration:
337 # - 172.32.255.1/32 is the proxy.wleiden.net deflector
338 # - masterip is special as it needs to be assigned to at
339 # least one interface, so if not used assign to lo0
340 addrs_list = { 'lo0' : [("127.0.0.1/8", "LocalHost"), ("172.31.255.1/32","Proxy IP")] }
341 iface_map = {'lo0' : 'lo0'}
342
343 masterip_used = False
344 for iface_key in datadump['iface_keys']:
345 if datadump[iface_key]['ip'].startswith(datadump['masterip']):
346 masterip_used = True
347 break
348 if not masterip_used:
349 addrs_list['lo0'].append((datadump['masterip'] + "/32", 'Master IP Not used in interface'))
350
351 for iface_key in datadump['iface_keys']:
352 ifacedump = datadump[iface_key]
353 ifname = ifacedump['autogen_ifname']
354
355 # Add interface IP to list
356 item = (ifacedump['ip'], ifacedump['desc'])
357 if addrs_list.has_key(ifname):
358 addrs_list[ifname].append(item)
359 else:
360 addrs_list[ifname] = [item]
361
362 # Alias only needs IP assignment for now, this might change if we
363 # are going to use virtual accesspoints
364 if "alias" in iface_key:
365 continue
366
367 # XXX: Might want to deduct type directly from interface name
368 if ifacedump['type'] in ['11a', '11b', '11g', 'wireless']:
369 # Default to station (client) mode
370 ifacedump['wlanmode'] = "sta"
371 if ifacedump['mode'] in ['master', 'master-wds']:
372 ifacedump['wlanmode'] = "ap"
373 # Default to 802.11b mode
374 ifacedump['mode'] = '11b'
375 if ifacedump['type'] in ['11a', '11b' '11g']:
376 ifacedump['mode'] = ifacedump['type']
377
378 if not ifacedump.has_key('channel'):
379 if ifacedump['type'] == '11a':
380 ifacedump['channel'] = 36
381 else:
382 ifacedump['channel'] = 1
383
384 # Allow special hacks at the back like wds and stuff
385 if not ifacedump.has_key('extra'):
386 ifacedump['extra'] = 'regdomain ETSI country NL'
387
388 output += "wlans_%(interface)s='%(autogen_ifname)s'\n" % ifacedump
389 output += ("create_args_%(autogen_ifname)s='wlanmode %(wlanmode)s mode " +\
390 "%(mode)s ssid %(ssid)s %(extra)s channel %(channel)s'\n") % ifacedump
391
392 elif ifacedump['type'] in ['ethernet', 'eth']:
393 # No special config needed besides IP
394 pass
395 else:
396 assert False, "Unknown type " + ifacedump['type']
397
398 # Print IP address which needs to be assigned over here
399 output += "\n"
400 for iface,addrs in sorted(addrs_list.iteritems()):
401 for addr, comment in sorted(addrs,key=lambda x: parseaddr(x[0].split('/')[0])):
402 output += "# %s || %s || %s\n" % (iface, addr, comment)
403 output += "ipv4_addrs_%s='%s'\n\n" % (iface, " ".join([x[0] for x in addrs]))
404
405 return output
406
407
408
409def get_yaml(item):
410 """ Get configuration yaml for 'item'"""
411 gfile = os.path.join(NODE_DIR,item,'wleiden.yaml')
412
413 f = open(gfile, 'r')
414 datadump = yaml.load(f,Loader=Loader)
415 datadump['autogen_iface_keys'] = get_interface_keys(datadump)
416
417 wlan_count=0
418 for key in datadump['autogen_iface_keys']:
419 if datadump[key]['type'] in ['11a', '11b', '11g', 'wireless']:
420 datadump[key]['autogen_ifname'] = 'wlan%i' % wlan_count
421 wlan_count += 1
422 else:
423 datadump[key]['autogen_ifname'] = datadump[key]['interface'].split(':')[0]
424
425
426 dhcp_interfaces = [datadump[key]['autogen_ifname'] for key in datadump['autogen_iface_keys'] if datadump[key]['dhcp'] != 'no']
427 datadump['autogen_dhcp_interfaces'] = ' '.join(dhcp_interfaces)
428 datadump['autogen_item'] = item
429 datadump['autogen_fqdn'] = get_fqdn(datadump)
430 f.close()
431
432 return datadump
433
434def store_yaml(datadump, header=False):
435 """ Store configuration yaml for 'item'"""
436 item = datadump['autogen_item']
437 gfile = os.path.join(NODE_DIR,item,'wleiden.yaml')
438
439 f = open(gfile, 'w')
440 f.write(generate_wleiden_yaml(datadump, header))
441 f.close()
442
443
444
445def get_all_configs():
446 """ Get dict with key 'host' with all configs present """
447 configs = dict()
448 for host in get_hostlist():
449 datadump = get_yaml(host)
450 configs[host] = datadump
451 return configs
452
453
454def get_interface_keys(config):
455 """ Quick hack to get all interface keys, later stage convert this to a iterator """
456 return sorted([elem for elem in config.keys() if (elem.startswith('iface_') and not "lo0" in elem)])
457
458
459def get_used_ips(configs):
460 """ Return array of all IPs used in config files"""
461 ip_list = []
462 for config in configs:
463 ip_list.append(config['masterip'])
464 for iface_key in get_interface_keys(config):
465 l = config[iface_key]['ip']
466 addr, mask = l.split('/')
467 # Special case do not process
468 if valid_addr(addr):
469 ip_list.append(addr)
470 else:
471 logger.error("## IP '%s' in '%s' not valid" % (addr, config['nodename']))
472 return sorted(ip_list)
473
474
475
476def generate_resolv_conf(datadump):
477 """ Generate configuration file '/etc/resolv.conf' """
478 output = generate_header("#");
479 output += """\
480search wleiden.net
481# Try local (cache) first
482nameserver 127.0.0.1
483"""
484 if datadump['nodetype'] == 'Proxy':
485 output += """\
486nameserver 8.8.8.8 # Google Public NameServer
487nameserver 8.8.4.4 # Google Public NameServer
488"""
489 else:
490 output += """\
491# Proxies are recursive nameservers
492# needs to be in resolv.conf for dnsmasq as well
493""" % datadump
494 for proxy in get_proxylist():
495 proxy_ip = get_yaml(proxy)['masterip']
496 output += "nameserver %-15s # %s\n" % (proxy_ip, proxy)
497
498 return output
499
500def generate_motd(datadump):
501 """ Generate configuration file '/etc/motd' """
502 output = """\
503FreeBSD 9.0-RELEASE (kernel.wleiden) #0 r230587: Sun Jan 29 17:09:57 CET 2012
504
505 WWW: %(autogen_fqdn)s.wleiden.net - http://www.wirelessleiden.nl
506 Loc: %(location)s
507
508Interlinks:
509""" % datadump
510
511 # XXX: This is a hacky way to get the required data
512 for line in generate_rc_conf_local(datadump).split('\n'):
513 if '||' in line and not line[1:].split()[0] in ['lo0', 'ath0'] :
514 output += " - %s \n" % line[1:]
515 output += """\
516Attached bridges:
517"""
518 for iface_key in datadump['autogen_iface_keys']:
519 ifacedump = datadump[iface_key]
520 if ifacedump.has_key('ns_ip'):
521 output += " - %(interface)s || %(mode)s || %(ns_ip)s\n" % ifacedump
522
523 return output
524
525
526def format_yaml_value(value):
527 """ Get yaml value in right syntax for outputting """
528 if isinstance(value,str):
529 output = '"%s"' % value
530 else:
531 output = value
532 return output
533
534
535
536def format_wleiden_yaml(datadump):
537 """ Special formatting to ensure it is editable"""
538 output = "# Genesis config yaml style\n"
539 output += "# vim:ts=2:et:sw=2:ai\n"
540 output += "#\n"
541 iface_keys = [elem for elem in datadump.keys() if elem.startswith('iface_')]
542 for key in sorted(set(datadump.keys()) - set(iface_keys)):
543 output += "%-10s: %s\n" % (key, format_yaml_value(datadump[key]))
544
545 output += "\n\n"
546
547 key_order = [ 'comment', 'interface', 'ip', 'desc', 'sdesc', 'mode', 'type',
548 'extra_type', 'channel', 'ssid', 'dhcp' ]
549
550 for iface_key in sorted(iface_keys):
551 output += "%s:\n" % iface_key
552 for key in key_order + list(sorted(set(datadump[iface_key].keys()) - set(key_order))):
553 if datadump[iface_key].has_key(key):
554 output += " %-11s: %s\n" % (key, format_yaml_value(datadump[iface_key][key]))
555 output += "\n\n"
556
557 return output
558
559
560
561def generate_wleiden_yaml(datadump, header=True):
562 """ Generate (petty) version of wleiden.yaml"""
563 for key in datadump.keys():
564 if key.startswith('autogen_'):
565 del datadump[key]
566 # Interface autogen cleanups
567 elif type(datadump[key]) == dict:
568 for key2 in datadump[key].keys():
569 if key2.startswith('autogen_'):
570 del datadump[key][key2]
571
572 output = generate_header("#") if header else ''
573 output += format_wleiden_yaml(datadump)
574 return output
575
576
577def generate_yaml(datadump):
578 return generate_config(datadump['nodename'], "wleiden.yaml", datadump)
579
580
581
582def generate_config(node, config, datadump=None):
583 """ Print configuration file 'config' of 'node' """
584 output = ""
585 try:
586 # Load config file
587 if datadump == None:
588 datadump = get_yaml(node)
589
590 # Preformat certain needed variables for formatting and push those into special object
591 datadump_extra = copy.deepcopy(datadump)
592 if not datadump_extra.has_key('domain'):
593 datadump_extra['domain'] = 'wleiden.net'
594 datadump_extra['nodename_lower'] = datadump_extra['nodename'].lower()
595 datadump_extra['iface_keys'] = sorted([elem for elem in datadump.keys() if elem.startswith('iface_')])
596
597 if config == 'wleiden.yaml':
598 output += generate_wleiden_yaml(datadump)
599 elif config == 'authorized_keys':
600 f = open(os.path.join(NODE_DIR,"global_keys"), 'r')
601 output += f.read()
602 f.close()
603 elif config == 'dnsmasq.conf':
604 output += generate_dnsmasq_conf(datadump_extra)
605 elif config == 'rc.conf.local':
606 output += generate_rc_conf_local(datadump_extra)
607 elif config == 'resolv.conf':
608 output += generate_resolv_conf(datadump_extra)
609 elif config == 'motd':
610 output += generate_motd(datadump_extra)
611 else:
612 assert False, "Config not found!"
613 except IOError, e:
614 output += "[ERROR] Config file not found"
615 return output
616
617
618
619def process_cgi_request():
620 """ When calling from CGI """
621 # Update repository if requested
622 form = cgi.FieldStorage()
623 if form.getvalue("action") == "update":
624 print "Refresh: 5; url=."
625 print "Content-type:text/plain\r\n\r\n",
626 print "[INFO] Updating subverion, please wait..."
627 print subprocess.Popen(['svn', 'cleanup', "%s/.." % NODE_DIR], stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0],
628 print subprocess.Popen(['svn', 'up', "%s/.." % NODE_DIR], stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0],
629 print "[INFO] All done, redirecting in 5 seconds"
630 sys.exit(0)
631
632
633 uri = os.environ['PATH_INFO'].strip('/').split('/')
634 output = ""
635 if not uri[0]:
636 if is_text_request():
637 output += "Content-type:text/plain\r\n\r\n"
638 output += '\n'.join(get_hostlist())
639 else:
640 output += "Content-type:text/html\r\n\r\n"
641 output += generate_title(get_hostlist())
642 elif len(uri) == 1:
643 output += "Content-type:text/plain\r\n\r\n"
644 output += generate_node(uri[0])
645 elif len(uri) == 2:
646 output += "Content-type:text/plain\r\n\r\n"
647 output += generate_config(uri[0], uri[1])
648 else:
649 assert False, "Invalid option"
650 print output
651
652def get_fqdn(datadump):
653 # Proxy naming convention is special
654 if datadump['nodetype'] == 'Proxy':
655 fqdn = datadump['nodename']
656 else:
657 # By default the full name is listed and also a shortname CNAME for easy use.
658 fqdn = datadump['nodetype'] + datadump['nodename']
659 return(fqdn)
660
661
662
663def make_dns(output_dir = 'dns'):
664 items = dict()
665
666 # hostname is key, IP is value
667 wleiden_zone = dict()
668 wleiden_cname = dict()
669
670 pool = dict()
671 for node in get_hostlist():
672 logger.info("Processing host %s", node)
673 datadump = get_yaml(node)
674
675 # Proxy naming convention is special
676 fqdn = get_fqdn(datadump)
677 if datadump['nodetype'] == 'CNode':
678 wleiden_cname[datadump['nodename']] = fqdn
679
680 wleiden_zone[fqdn] = datadump['masterip']
681
682 # Hacking to get proper DHCP IPs and hostnames
683 for iface_key in get_interface_keys(datadump):
684 iface_name = datadump[iface_key]['interface'].replace(':',"-alias-")
685 (ip, netmask) = datadump[iface_key]['ip'].split('/')
686 try:
687 (dhcp_start, dhcp_stop) = datadump[iface_key]['dhcp'].split('-')
688 datadump[iface_key]['subnet'] = netmask2subnet(netmask)
689 dhcp_part = ".".join(ip.split('.')[0:3])
690 if ip != datadump['masterip']:
691 wleiden_zone["dhcp-gateway-%s.%s" % (iface_name, fqdn)] = ip
692 for i in range(int(dhcp_start), int(dhcp_stop) + 1):
693 wleiden_zone["dhcp-%s-%s.%s" % (i, iface_name, fqdn)] = "%s.%s" % (dhcp_part, i)
694 except (AttributeError, ValueError):
695 # First push it into a pool, to indentify the counter-part later on
696 addr = parseaddr(ip)
697 netmask = int(netmask)
698 addr = addr & ~((1 << (32 - netmask)) - 1)
699 if pool.has_key(addr):
700 pool[addr] += [(iface_name, fqdn, ip)]
701 else:
702 pool[addr] = [(iface_name, fqdn, ip)]
703 continue
704
705
706 def pool_to_name(node, pool_members):
707 """Convert the joined name to a usable pool name"""
708
709 # Get rid of the own entry
710 pool_members = list(set(pool_members) - set([fqdn]))
711
712 target = oldname = ''
713 for node in sorted(pool_members):
714 (name, number) = re.match('^([A-Za-z]+)([0-9]*)$',node).group(1,2)
715 target += "-" + number if name == oldname else "-" + node if target else node
716 oldname = name
717
718 return target
719
720
721 # WL uses an /29 to configure an interface. IP's are ordered like this:
722 # MasterA (.1) -- DeviceA (.2) <<>> DeviceB (.3) --- SlaveB (.4)
723
724 sn = lambda x: re.sub(r'(?i)^cnode','',x)
725
726 # Automatic naming convention of interlinks namely 2 + remote.lower()
727 for (key,value) in pool.iteritems():
728 # Make sure they are sorted from low-ip to high-ip
729 value = sorted(value, key=lambda x: parseaddr(x[2]))
730
731 if len(value) == 1:
732 (iface_name, fqdn, ip) = value[0]
733 wleiden_zone["2unused-%s.%s" % (iface_name, fqdn)] = ip
734
735 # Device DNS names
736 if 'cnode' in fqdn.lower():
737 wleiden_zone["d-at-%s.%s" % (iface_name, fqdn)] = showaddr(parseaddr(ip) + 1)
738 wleiden_cname["d-at-%s.%s" % (iface_name,sn(fqdn))] = "d-at-%s.%s" % (iface_name, fqdn)
739
740 elif len(value) == 2:
741 (a_iface_name, a_fqdn, a_ip) = value[0]
742 (b_iface_name, b_fqdn, b_ip) = value[1]
743 wleiden_zone["2%s.%s" % (b_fqdn,a_fqdn)] = a_ip
744 wleiden_zone["2%s.%s" % (a_fqdn,b_fqdn)] = b_ip
745
746 # Device DNS names
747 if 'cnode' in a_fqdn.lower() and 'cnode' in b_fqdn.lower():
748 wleiden_zone["d-at-%s.%s" % (a_iface_name, a_fqdn)] = showaddr(parseaddr(a_ip) + 1)
749 wleiden_zone["d-at-%s.%s" % (b_iface_name, b_fqdn)] = showaddr(parseaddr(b_ip) - 1)
750 wleiden_cname["d-at-%s.%s" % (a_iface_name,sn(a_fqdn))] = "d-at-%s.%s" % (a_iface_name, a_fqdn)
751 wleiden_cname["d-at-%s.%s" % (b_iface_name,sn(b_fqdn))] = "d-at-%s.%s" % (b_iface_name, b_fqdn)
752 wleiden_cname["d2%s.%s" % (sn(b_fqdn),sn(a_fqdn))] = "d-at-%s.%s" % (a_iface_name, a_fqdn)
753 wleiden_cname["d2%s.%s" % (sn(a_fqdn),sn(b_fqdn))] = "d-at-%s.%s" % (b_iface_name, b_fqdn)
754
755 else:
756 pool_members = [k[1] for k in value]
757 for item in value:
758 (iface_name, fqdn, ip) = item
759 pool_name = "2pool-" + showaddr(key).replace('.','-') + "-" + pool_to_name(fqdn,pool_members)
760 wleiden_zone["%s.%s" % (pool_name, fqdn)] = ip
761
762 # Include static DNS entries
763 # XXX: Should they override the autogenerated results?
764 # XXX: Convert input to yaml more useable.
765 # Format:
766 ##; this is a comment
767 ## roomburgh=CNodeRoomburgh1
768 ## apkerk1.CNodeVosko=172.17.176.8 ;this as well
769 dns = yaml.load(open(os.path.join(NODE_DIR,'../dns/staticDNS.yaml'),'r'))
770
771 # Hack to allow special entries, for development
772 wleiden_raw = dns['raw']
773 del dns['raw']
774
775 for comment, block in dns.iteritems():
776 for k,v in block.iteritems():
777 if valid_addr(v):
778 wleiden_zone[k] = v
779 else:
780 wleiden_cname[k] = v
781
782 details = dict()
783 # 24 updates a day allowed
784 details['serial'] = time.strftime('%Y%m%d%H')
785
786 dns_header = '''
787$TTL 3h
788%(zone)s. SOA sunny.wleiden.net. beheer.lijst.wirelessleiden.nl. ( %(serial)s 1d 12h 1w 3h )
789 ; Serial, Refresh, Retry, Expire, Neg. cache TTL
790
791 NS sunny.wleiden.net.
792 \n'''
793
794
795 if not os.path.isdir('dns'):
796 os.makedirs('dns')
797 details['zone'] = 'wleiden.net'
798 f = open(os.path.join(output_dir,"db." + details['zone']), "w")
799 f.write(dns_header % details)
800
801 for host,ip in wleiden_zone.iteritems():
802 if valid_addr(ip):
803 f.write("%s.wleiden.net. IN A %s \n" % (host.lower(), ip))
804 for source,dest in wleiden_cname.iteritems():
805 f.write("%s.wleiden.net. IN CNAME %s.wleiden.net.\n" % (source.lower(), dest.lower()))
806 for source, dest in wleiden_raw.iteritems():
807 f.write("%s.wleiden.net. %s\n" % (source, dest))
808 f.close()
809
810 # Create whole bunch of specific sub arpa zones. To keep it compliant
811 for s in range(16,32):
812 details['zone'] = '%i.172.in-addr.arpa' % s
813 f = open(os.path.join(output_dir,"db." + details['zone']), "w")
814 f.write(dns_header % details)
815
816 #XXX: Not effient, fix to proper data structure and do checks at other
817 # stages
818 for host,ip in wleiden_zone.iteritems():
819 if valid_addr(ip):
820 if int(ip.split('.')[1]) == s:
821 rev_ip = '.'.join(reversed(ip.split('.')))
822 f.write("%s.in-addr.arpa. IN PTR %s.wleiden.net.\n" % (rev_ip.lower(), host.lower()))
823 f.close()
824
825
826def usage():
827 print """Usage: %s <standalone [port] |test [test arguments]|static|dns>
828Examples:
829\tdns [outputdir] = Generate BIND compliant zone files in dns.
830\tstandalone = Run configurator webserver [default port=8000]
831\twind-export = Generate SQL import scripts for WIND database
832\tfull-export = Generate yaml export script for heatmap.
833\tstatic = Generate all config files and store on disk
834\t with format ./static/%%NODE%%/%%FILE%%
835\ttest CNodeRick dnsmasq.conf = Receive output of CGI script
836\t for arguments CNodeRick/dnsmasq.conf
837\tlist <nodes|proxies> = List systems which marked up.
838"""
839 exit(0)
840
841
842def is_text_request():
843 """ Find out whether we are calling from the CLI or any text based CLI utility """
844 try:
845 return os.environ['HTTP_USER_AGENT'].split()[0] in ['curl', 'fetch', 'wget']
846 except KeyError:
847 return True
848
849def main():
850 """Hard working sub"""
851 # Allow easy hacking using the CLI
852 if not os.environ.has_key('PATH_INFO'):
853 if len(sys.argv) < 2:
854 usage()
855
856 if sys.argv[1] == "standalone":
857 import SocketServer
858 import CGIHTTPServer
859 # Hop to the right working directory.
860 os.chdir(os.path.dirname(__file__))
861 try:
862 PORT = int(sys.argv[2])
863 except (IndexError,ValueError):
864 PORT = 8000
865
866 class MyCGIHTTPRequestHandler(CGIHTTPServer.CGIHTTPRequestHandler):
867 """ Serve this CGI from the root of the webserver """
868 def is_cgi(self):
869 if "favicon" in self.path:
870 return False
871
872 self.cgi_info = (__file__, self.path)
873 self.path = ''
874 return True
875 handler = MyCGIHTTPRequestHandler
876 SocketServer.TCPServer.allow_reuse_address = True
877 httpd = SocketServer.TCPServer(("", PORT), handler)
878 httpd.server_name = 'localhost'
879 httpd.server_port = PORT
880
881 logger.info("serving at port %s", PORT)
882 try:
883 httpd.serve_forever()
884 except KeyboardInterrupt:
885 httpd.shutdown()
886 logger.info("All done goodbye")
887 elif sys.argv[1] == "test":
888 os.environ['PATH_INFO'] = "/".join(sys.argv[2:])
889 os.environ['SCRIPT_NAME'] = __file__
890 process_cgi_request()
891 elif sys.argv[1] == "unit-test":
892 os.environ['SCRIPT_NAME'] = __file__
893 for host in get_hostlist():
894 for outfile in files:
895 os.environ['PATH_INFO'] = "/".join([host,outfile])
896 try:
897 process_cgi_request()
898 except Exception:
899 print "# ERROR: %s" % os.environ['PATH_INFO']
900 raise
901
902
903 elif sys.argv[1] == "static":
904 items = dict()
905 for node in get_hostlist():
906 items['node'] = node
907 items['wdir'] = "./static/%(node)s" % items
908 if not os.path.isdir(items['wdir']):
909 os.makedirs(items['wdir'])
910 datadump = get_yaml(node)
911 for config in files:
912 items['config'] = config
913 logger.info("## Generating %(node)s %(config)s" % items)
914 f = open("%(wdir)s/%(config)s" % items, "w")
915 f.write(generate_config(node, config, datadump))
916 f.close()
917 elif sys.argv[1] == "wind-export":
918 items = dict()
919 for node in get_hostlist():
920 datadump = get_yaml(node)
921 sql = """INSERT IGNORE INTO nodes (name, name_ns, longitude, latitude)
922 VALUES ('%(nodename)s', '%(nodename)s', %(latitude)s, %(longitude)s);""" % datadump;
923 sql = """INSERT IGNORE INTO users_nodes (user_id, node_id, owner)
924 VALUES (
925 (SELECT id FROM users WHERE username = 'rvdzwet'),
926 (SELECT id FROM nodes WHERE name = '%(nodename)s'),
927 'Y');""" % datadump
928 #for config in files:
929 # items['config'] = config
930 # print "## Generating %(node)s %(config)s" % items
931 # f = open("%(wdir)s/%(config)s" % items, "w")
932 # f.write(generate_config(node, config, datadump))
933 # f.close()
934 for node in get_hostlist():
935 datadump = get_yaml(node)
936 for iface_key in sorted([elem for elem in datadump.keys() if elem.startswith('iface_')]):
937 ifacedump = datadump[iface_key]
938 if ifacedump.has_key('mode') and ifacedump['mode'] == 'ap-wds':
939 ifacedump['nodename'] = datadump['nodename']
940 if not ifacedump.has_key('channel') or not ifacedump['channel']:
941 ifacedump['channel'] = 0
942 sql = """INSERT INTO links (node_id, type, ssid, protocol, channel, status)
943 VALUES ((SELECT id FROM nodes WHERE name = '%(nodename)s'), 'ap',
944 '%(ssid)s', 'IEEE 802.11b', %(channel)s, 'active');""" % ifacedump
945 elif sys.argv[1] == "full-export":
946 hosts = {}
947 for node in get_hostlist():
948 datadump = get_yaml(node)
949 hosts[datadump['nodename']] = datadump
950 print yaml.dump(hosts)
951
952 elif sys.argv[1] == "dns":
953 make_dns(sys.argv[2] if len(sys.argv) > 2 else 'dns')
954 elif sys.argv[1] == "cleanup":
955 # First generate all datadumps
956 datadumps = dict()
957 for host in get_hostlist():
958 logger.info("# Processing: %s", host)
959 datadump = get_yaml(host)
960 datadumps[get_fqdn(datadump)] = datadump
961
962 for host,datadump in datadumps.iteritems():
963 datadump['latitude'], datadump['longitude'] = rdnap.rd2etrs(datadump['rdnap_x'], datadump['rdnap_y'])
964 for iface_key in datadump['autogen_iface_keys']:
965 # Wireless Leiden SSID have an consistent lowercase/uppercase
966 if datadump[iface_key].has_key('ssid'):
967 ssid = datadump[iface_key]['ssid']
968 prefix = 'ap-WirelessLeiden-'
969 if ssid.lower().startswith(prefix.lower()):
970 datadump[iface_key]['ssid'] = prefix + ssid[len(prefix)].upper() + ssid[len(prefix) + 1:]
971 if datadump[iface_key].has_key('ns_ip') and not datadump[iface_key].has_key('mode'):
972 datadump[iface_key]['mode'] = 'autogen-FIXME'
973 if not datadump[iface_key].has_key('desc'):
974 datadump[iface_key]['desc'] = 'autogen-FIXME'
975 store_yaml(datadump)
976 elif sys.argv[1] == "list":
977 if sys.argv[2] == "nodes":
978 systems = get_nodelist()
979 elif sys.argv[2] == "proxies":
980 systems = get_proxylist()
981 else:
982 usage()
983 for system in systems:
984 datadump = get_yaml(system)
985 if datadump['status'] == "up":
986 print system
987 else:
988 usage()
989 else:
990 # Do not enable debugging for config requests as it highly clutters the output
991 if not is_text_request():
992 cgitb.enable()
993 process_cgi_request()
994
995
996if __name__ == "__main__":
997 main()
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