source: genesis/tools/gformat.py@ 10379

Last change on this file since 10379 was 10378, checked in by rick, 13 years ago

gformat allow creating network.kml

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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
33import make_network_kml
34from pprint import pprint
35from collections import defaultdict
36try:
37 import yaml
38except ImportError, e:
39 print e
40 print "[ERROR] Please install the python-yaml or devel/py-yaml package"
41 exit(1)
42
43try:
44 from yaml import CLoader as Loader
45 from yaml import CDumper as Dumper
46except ImportError:
47 from yaml import Loader, Dumper
48
49from jinja2 import Template
50
51import logging
52logging.basicConfig(format='# %(levelname)s: %(message)s' )
53logger = logging.getLogger()
54logger.setLevel(logging.DEBUG)
55
56
57if os.environ.has_key('CONFIGROOT'):
58 NODE_DIR = os.environ['CONFIGROOT']
59else:
60 NODE_DIR = os.path.abspath(os.path.dirname(__file__)) + '/../nodes'
61__version__ = '$Id: gformat.py 10378 2012-04-07 12:03:25Z rick $'
62
63
64files = [
65 'authorized_keys',
66 'dnsmasq.conf',
67 'rc.conf.local',
68 'resolv.conf',
69 'motd',
70 'wleiden.yaml',
71 ]
72
73# Global variables uses
74OK = 10
75DOWN = 20
76UNKNOWN = 90
77
78
79def make_relations():
80 """ Process _ALL_ yaml files to get connection relations """
81 errors = ""
82 poel = defaultdict(list)
83 for host in get_hostlist():
84 try:
85 datadump = get_yaml(host)
86 for iface_key in datadump['autogen_iface_keys']:
87 l = datadump[iface_key]['ip']
88 addr, mask = l.split('/')
89
90 # Not parsing of these folks please
91 if not valid_addr(addr):
92 continue
93
94 addr = parseaddr(addr)
95 mask = int(mask)
96 network = addr & ~((1 << (32 - mask)) - 1)
97 poel[network] += [(host,datadump[iface_key])]
98 except (KeyError, ValueError), e:
99 errors += "[FOUT] in '%s' interface '%s'" % (host,iface_key)
100 errors += e
101 continue
102 return (poel, errors)
103
104
105def get_proxylist():
106 """Get all available proxies proxyX sorting based on X number"""
107 proxylist = sorted([os.path.basename(x) for x in glob.glob("%s/proxy*" % NODE_DIR)],
108 key=lambda name: int(''.join([c for c in name if c in string.digits])),
109 cmp=lambda x,y: x - y) + sorted([os.path.basename(x) for x in glob.glob("%s/Proxy*" % NODE_DIR)])
110 return proxylist
111
112def get_hybridlist():
113 """Get all available proxies hybridX sorting based on X number"""
114 hybridlist = sorted([os.path.basename(x) for x in glob.glob("%s/hybrid*" % NODE_DIR)],
115 key=lambda name: int(''.join([c for c in name if c in string.digits])),
116 cmp=lambda x,y: x - y)
117 return hybridlist
118
119
120def valid_addr(addr):
121 """ Show which address is valid in which are not """
122 return str(addr).startswith('172.')
123
124
125def get_nodelist():
126 """ Get all available nodes - sorted """
127 nodelist = sorted([os.path.basename(x) for x in glob.glob("%s/CNode*" % NODE_DIR)])
128 return nodelist
129
130def get_hostlist():
131 """ Combined hosts and proxy list"""
132 return get_nodelist() + get_proxylist() + get_hybridlist()
133
134def angle_between_points(lat1,lat2,long1,long2):
135 """
136 Return Angle in radians between two GPS coordinates
137 See: http://stackoverflow.com/questions/3809179/angle-between-2-gps-coordinates
138 """
139 dy = lat2 - lat1
140 dx = math.cos(math.pi/180*lat1)*(long2 - long1)
141 angle = math.atan2(dy,dx)
142 return angle
143
144def angle_to_cd(angle):
145 """ Return Dutch Cardinal Direction estimation in 'one digit' of radian angle """
146
147 # For easy conversion get positive degree
148 degrees = math.degrees(angle)
149 if degrees < 0:
150 360 - abs(degrees)
151
152 # Numbers can be confusing calculate from the 4 main directions
153 p = 22.5
154 if degrees < p:
155 return "n"
156 elif degrees < (90 - p):
157 return "no"
158 elif degrees < (90 + p):
159 return "o"
160 elif degrees < (180 - p):
161 return "zo"
162 elif degrees < (180 + p):
163 return "z"
164 elif degrees < (270 - p):
165 return "zw"
166 elif degrees < (270 + p):
167 return "w"
168 elif degrees < (360 - p):
169 return "nw"
170 else:
171 return "n"
172
173
174def generate_title(nodelist):
175 """ Main overview page """
176 items = {'root' : "." }
177 output = """
178<html>
179 <head>
180 <title>Wireless leiden Configurator - GFormat</title>
181 <style type="text/css">
182 th {background-color: #999999}
183 tr:nth-child(odd) {background-color: #cccccc}
184 tr:nth-child(even) {background-color: #ffffff}
185 th, td {padding: 0.1em 1em}
186 </style>
187 </head>
188 <body>
189 <center>
190 <form type="GET" action="%(root)s">
191 <input type="hidden" name="action" value="update">
192 <input type="submit" value="Update Configuration Database (SVN)">
193 </form>
194 <table>
195 <caption><h3>Wireless Leiden Configurator</h3></caption>
196 """ % items
197
198 for node in nodelist:
199 items['node'] = node
200 output += '<tr><td><a href="%(root)s/%(node)s">%(node)s</a></td>' % items
201 for config in files:
202 items['config'] = config
203 output += '<td><a href="%(root)s/%(node)s/%(config)s">%(config)s</a></td>' % items
204 output += "</tr>"
205 output += """
206 </table>
207 <hr />
208 <em>%s</em>
209 </center>
210 </body>
211</html>
212 """ % __version__
213
214 return output
215
216
217
218def generate_node(node):
219 """ Print overview of all files available for node """
220 return "\n".join(files)
221
222def generate_node_overview(host):
223 """ Print overview of all files available for node """
224 datadump = get_yaml(host)
225 params = { 'host' : host }
226 output = "<em><a href='..'>Back to overview</a></em><hr />"
227 output += "<h2>Available files:</h2><ul>"
228 for cf in files:
229 params['cf'] = cf
230 output += '<li><a href="%(host)s/%(cf)s">%(cf)s</a></li>\n' % params
231 output += "</ul>"
232
233 # Generate and connection listing
234 output += "<h2>Connected To:</h2><ul>"
235 (poel, errors) = make_relations()
236 for network, hosts in poel.iteritems():
237 if host in [x[0] for x in hosts]:
238 if len(hosts) == 1:
239 # Single not connected interface
240 continue
241 for remote,ifacedump in hosts:
242 if remote == host:
243 # This side of the interface
244 continue
245 params = { 'remote': remote, 'remote_ip' : ifacedump['ip'] }
246 output += '<li><a href="%(remote)s">%(remote)s</a> -- %(remote_ip)s</li>\n' % params
247 output += "</ul>"
248 output += "<h2>MOTD details:</h2><pre>" + generate_motd(datadump) + "</pre>"
249
250 output += "<hr /><em><a href='..'>Back to overview</a></em>"
251 return output
252
253
254def generate_header(ctag="#"):
255 return """\
256%(ctag)s
257%(ctag)s DO NOT EDIT - Automatically generated by 'gformat'
258%(ctag)s Generated at %(date)s by %(host)s
259%(ctag)s
260""" % { 'ctag' : ctag, 'date' : time.ctime(), 'host' : socket.gethostname() }
261
262
263
264def parseaddr(s):
265 """ Process IPv4 CIDR notation addr to a (binary) number """
266 f = s.split('.')
267 return (long(f[0]) << 24L) + \
268 (long(f[1]) << 16L) + \
269 (long(f[2]) << 8L) + \
270 long(f[3])
271
272
273
274def showaddr(a):
275 """ Display IPv4 addr in (dotted) CIDR notation """
276 return "%d.%d.%d.%d" % ((a >> 24) & 0xff, (a >> 16) & 0xff, (a >> 8) & 0xff, a & 0xff)
277
278
279def is_member(ip, mask, canidate):
280 """ Return True if canidate is part of ip/mask block"""
281 ip_addr = gformat.parseaddr(ip)
282 ip_canidate = gformat.parseaddr(canidate)
283 mask = int(mask)
284 ip_addr = ip_addr & ~((1 << (32 - mask)) - 1)
285 ip_canidate = ip_canidate & ~((1 << (32 - mask)) - 1)
286 return ip_addr == ip_canidate
287
288
289
290
291def netmask2subnet(netmask):
292 """ Given a 'netmask' return corresponding CIDR """
293 return showaddr(0xffffffff & (0xffffffff << (32 - int(netmask))))
294
295
296
297def generate_dnsmasq_conf(datadump):
298 """ Generate configuration file '/usr/local/etc/dnsmasq.conf' """
299 output = generate_header()
300 output += Template("""\
301# DHCP server options
302dhcp-authoritative
303dhcp-fqdn
304domain=dhcp.{{ autogen_fqdn }}.{{ autogen_domain }}
305domain-needed
306expand-hosts
307log-async=100
308
309# Low memory footprint
310cache-size=10000
311
312\n""").render(datadump)
313
314 for iface_key in datadump['autogen_iface_keys']:
315 if not datadump[iface_key].has_key('comment'):
316 datadump[iface_key]['comment'] = None
317 output += "## %(interface)s - %(desc)s - %(comment)s\n" % datadump[iface_key]
318
319 try:
320 (dhcp_start, dhcp_stop) = datadump[iface_key]['dhcp'].split('-')
321 (ip, netmask) = datadump[iface_key]['ip'].split('/')
322 datadump[iface_key]['subnet'] = netmask2subnet(netmask)
323 except (AttributeError, ValueError):
324 output += "# not autoritive\n\n"
325 continue
326
327 dhcp_part = ".".join(ip.split('.')[0:3])
328 datadump[iface_key]['dhcp_start'] = dhcp_part + "." + dhcp_start
329 datadump[iface_key]['dhcp_stop'] = dhcp_part + "." + dhcp_stop
330 output += "dhcp-range=%(interface)s,%(dhcp_start)s,%(dhcp_stop)s,%(subnet)s,24h\n\n" % datadump[iface_key]
331
332 return output
333
334
335
336def generate_rc_conf_local(datadump):
337 """ Generate configuration file '/etc/rc.conf.local' """
338 datadump['autogen_ileiden_enable'] = 'yes' if datadump['ileiden'] else 'no'
339
340 ileiden_proxies = []
341 normal_proxies = []
342 for proxy in get_proxylist():
343 proxydump = get_yaml(proxy)
344 if proxydump['ileiden']:
345 ileiden_proxies.append(proxydump)
346 else:
347 normal_proxies.append(proxydump)
348 datadump['autogen_ileiden_proxies'] = ','.join([x['masterip'] for x in ileiden_proxies])
349 datadump['autogen_ileiden_proxies_names'] = ','.join([x['autogen_item'] for x in ileiden_proxies])
350 datadump['autogen_normal_proxies'] = ','.join([x['masterip'] for x in normal_proxies])
351 datadump['autogen_normal_proxies_names'] = ','.join([x['autogen_item'] for x in normal_proxies])
352
353 output = generate_header("#");
354 output += Template("""\
355hostname='{{ autogen_fqdn }}.{{ autogen_domain }}'
356location='{{ location }}'
357nodetype="{{ nodetype }}"
358
359{% if tproxy -%}
360tproxy_enable='YES'
361tproxy_range='{{ tproxy }}'
362{% else -%}
363tproxy_enable='NO'
364{% endif -%}
365
366{% if nodetype == "Proxy" or nodetype == "Hybrid" %}
367#
368# Edge Configuration
369#
370
371
372# Firewall and Routing Configuration
373
374{% if gateway -%}
375defaultrouter="{{ gateway }}"
376{% else -%}
377#defaultrouter="NOTSET"
378{% endif -%}
379internalif="{{ internalif }}"
380ileiden_enable="{{ autogen_ileiden_enable }}"
381gateway_enable="{{ autogen_ileiden_enable }}"
382pf_enable="yes"
383pf_rules="/etc/pf.conf"
384{% if autogen_ileiden_enable == "yes" -%}
385pf_flags="-D ext_if={{ externalif }} -D int_if={{ internalif }} -D publicnat={80,443}"
386lvrouted_enable="{{ autogen_ileiden_enable }}"
387lvrouted_flags="-u -s s00p3rs3kr3t -m 28"
388{% else -%}
389pf_flags="-D ext_if={{ externalif }} -D int_if={{ internalif }} -D publicnat={0}"
390{% endif -%}
391{% if internalroute -%}
392static_routes="wleiden"
393route_wleiden="-net 172.16.0.0/12 {{ internalroute }}"
394{% endif -%}
395{% endif -%}
396
397{% if nodetype == "CNode" %}
398#
399# NODE iLeiden Configuration
400#
401# iLeiden Proxies {{ autogen_ileiden_proxies_names }}
402list_ileiden_proxies="{{ autogen_ileiden_proxies }}"
403# normal Proxies {{ autogen_normal_proxies_names }}
404list_normal_proxies="{{ autogen_normal_proxies }}"
405
406lvrouted_flags="-u -s s00p3rs3kr3t -m 28 -z $list_ileiden_proxies"
407{% endif %}
408{% if vpnif -%}
409 vpnif="{{ vpnif }}"
410{% endif -%}
411
412captive_portal_whitelist=""
413captive_portal_interfaces="{{ autogen_dhcp_interfaces }}"
414\n
415""").render(datadump)
416
417 # lo0 configuration:
418 # - 172.32.255.1/32 is the proxy.wleiden.net deflector
419 # - masterip is special as it needs to be assigned to at
420 # least one interface, so if not used assign to lo0
421 addrs_list = { 'lo0' : [("127.0.0.1/8", "LocalHost"), ("172.31.255.1/32","Proxy IP")] }
422 iface_map = {'lo0' : 'lo0'}
423 dhclient_if = {'lo0' : False}
424
425 masterip_used = False
426 for iface_key in datadump['autogen_iface_keys']:
427 if datadump[iface_key]['ip'].startswith(datadump['masterip']):
428 masterip_used = True
429 break
430 if not masterip_used:
431 addrs_list['lo0'].append((datadump['masterip'] + "/32", 'Master IP Not used in interface'))
432
433 for iface_key in datadump['autogen_iface_keys']:
434 ifacedump = datadump[iface_key]
435 ifname = ifacedump['autogen_ifname']
436
437 # Flag dhclient is possible
438 dhclient_if[ifname] = ifacedump.has_key('dhcpclient') and ifacedump['dhcpclient']
439
440 # Add interface IP to list
441 item = (ifacedump['ip'], ifacedump['desc'])
442 if addrs_list.has_key(ifname):
443 addrs_list[ifname].append(item)
444 else:
445 addrs_list[ifname] = [item]
446
447 # Alias only needs IP assignment for now, this might change if we
448 # are going to use virtual accesspoints
449 if "alias" in iface_key:
450 continue
451
452 # XXX: Might want to deduct type directly from interface name
453 if ifacedump['type'] in ['11a', '11b', '11g', 'wireless']:
454 # Default to station (client) mode
455 ifacedump['wlanmode'] = "sta"
456 if ifacedump['mode'] in ['master', 'master-wds', 'ap', 'ap-wds']:
457 ifacedump['wlanmode'] = "ap"
458 # Default to 802.11b mode
459 ifacedump['mode'] = '11b'
460 if ifacedump['type'] in ['11a', '11b' '11g']:
461 ifacedump['mode'] = ifacedump['type']
462
463 if not ifacedump.has_key('channel'):
464 if ifacedump['type'] == '11a':
465 ifacedump['channel'] = 36
466 else:
467 ifacedump['channel'] = 1
468
469 # Allow special hacks at the back like wds and stuff
470 if not ifacedump.has_key('extra'):
471 ifacedump['extra'] = 'regdomain ETSI country NL'
472
473 output += "wlans_%(interface)s='%(autogen_ifname)s'\n" % ifacedump
474 output += ("create_args_%(autogen_ifname)s='wlanmode %(wlanmode)s mode " +\
475 "%(mode)s ssid %(ssid)s %(extra)s channel %(channel)s'\n") % ifacedump
476
477 elif ifacedump['type'] in ['ethernet', 'eth']:
478 # No special config needed besides IP
479 pass
480 else:
481 assert False, "Unknown type " + ifacedump['type']
482
483 # Print IP address which needs to be assigned over here
484 output += "\n"
485 for iface,addrs in sorted(addrs_list.iteritems()):
486 for addr, comment in sorted(addrs,key=lambda x: parseaddr(x[0].split('/')[0])):
487 output += "# %s || %s || %s\n" % (iface, addr, comment)
488
489 # Write DHCLIENT entry
490 if dhclient_if[iface]:
491 output += "ifconfig_%s='SYNCDHCP'\n\n" % (iface)
492 else:
493 output += "ipv4_addrs_%s='%s'\n\n" % (iface, " ".join([x[0] for x in addrs]))
494
495 return output
496
497
498
499def get_yaml(item):
500 """ Get configuration yaml for 'item'"""
501 gfile = os.path.join(NODE_DIR,item,'wleiden.yaml')
502
503 f = open(gfile, 'r')
504 datadump = yaml.load(f,Loader=Loader)
505 f.close()
506
507 # Preformat certain needed variables for formatting and push those into special object
508 datadump['autogen_iface_keys'] = get_interface_keys(datadump)
509
510 wlan_count=0
511 for key in datadump['autogen_iface_keys']:
512 if datadump[key]['type'] in ['11a', '11b', '11g', 'wireless']:
513 datadump[key]['autogen_ifname'] = 'wlan%i' % wlan_count
514 wlan_count += 1
515 else:
516 datadump[key]['autogen_ifname'] = datadump[key]['interface'].split(':')[0]
517
518 dhcp_interfaces = [datadump[key]['autogen_ifname'] for key in datadump['autogen_iface_keys'] if datadump[key]['dhcp'] != 'no']
519 datadump['autogen_dhcp_interfaces'] = ' '.join(dhcp_interfaces)
520 datadump['autogen_item'] = item
521 datadump['autogen_fqdn'] = get_fqdn(datadump)
522
523 datadump['autogen_domain'] = datadump['domain'] if datadump.has_key('domain') else 'wleiden.net'
524 return datadump
525
526
527def store_yaml(datadump, header=False):
528 """ Store configuration yaml for 'item'"""
529 item = datadump['autogen_item']
530 gfile = os.path.join(NODE_DIR,item,'wleiden.yaml')
531
532 f = open(gfile, 'w')
533 f.write(generate_wleiden_yaml(datadump, header))
534 f.close()
535
536
537
538def get_all_configs():
539 """ Get dict with key 'host' with all configs present """
540 configs = dict()
541 for host in get_hostlist():
542 datadump = get_yaml(host)
543 configs[host] = datadump
544 return configs
545
546
547def get_interface_keys(config):
548 """ Quick hack to get all interface keys, later stage convert this to a iterator """
549 return sorted([elem for elem in config.keys() if (elem.startswith('iface_') and not "lo0" in elem)])
550
551
552def get_used_ips(configs):
553 """ Return array of all IPs used in config files"""
554 ip_list = []
555 for config in configs:
556 ip_list.append(config['masterip'])
557 for iface_key in get_interface_keys(config):
558 l = config[iface_key]['ip']
559 addr, mask = l.split('/')
560 # Special case do not process
561 if valid_addr(addr):
562 ip_list.append(addr)
563 else:
564 logger.error("## IP '%s' in '%s' not valid" % (addr, config['nodename']))
565 return sorted(ip_list)
566
567
568
569def generate_resolv_conf(datadump):
570 """ Generate configuration file '/etc/resolv.conf' """
571 output = generate_header("#");
572 output += """\
573search wleiden.net
574"""
575 if datadump['nodetype'] == 'Proxy':
576 output += """\
577# Try local (cache) first
578nameserver 127.0.0.1
579nameserver 8.8.8.8 # Google Public NameServer
580nameserver 8.8.4.4 # Google Public NameServer
581"""
582 elif datadump['nodetype'] == 'Hybrid':
583 for proxy in get_proxylist():
584 proxy_ip = get_yaml(proxy)['masterip']
585 output += "nameserver %-15s # %s\n" % (proxy_ip, proxy)
586 output += """\
587nameserver 8.8.8.8 # Google Public NameServer
588nameserver 8.8.4.4 # Google Public NameServer
589"""
590 else:
591 output += """\
592# Try local (cache) first
593nameserver 127.0.0.1
594
595# Proxies are recursive nameservers
596# needs to be in resolv.conf for dnsmasq as well
597""" % datadump
598 for proxy in get_proxylist():
599 proxy_ip = get_yaml(proxy)['masterip']
600 output += "nameserver %-15s # %s\n" % (proxy_ip, proxy)
601
602 return output
603
604def generate_motd(datadump):
605 """ Generate configuration file '/etc/motd' """
606 output = """\
607FreeBSD 9.0-RELEASE (kernel.wleiden) #0 r230587: Sun Jan 29 17:09:57 CET 2012
608
609 WWW: %(autogen_fqdn)s.wleiden.net - http://www.wirelessleiden.nl
610 Loc: %(location)s
611
612Interlinks:
613""" % datadump
614
615 # XXX: This is a hacky way to get the required data
616 for line in generate_rc_conf_local(datadump).split('\n'):
617 if '||' in line and not line[1:].split()[0] in ['lo0', 'ath0'] :
618 output += " - %s \n" % line[1:]
619 output += """\
620Attached bridges:
621"""
622 for iface_key in datadump['autogen_iface_keys']:
623 ifacedump = datadump[iface_key]
624 if ifacedump.has_key('ns_ip'):
625 output += " - %(interface)s || %(mode)s || %(ns_ip)s\n" % ifacedump
626
627 return output
628
629
630def format_yaml_value(value):
631 """ Get yaml value in right syntax for outputting """
632 if isinstance(value,str):
633 output = '"%s"' % value
634 else:
635 output = value
636 return output
637
638
639
640def format_wleiden_yaml(datadump):
641 """ Special formatting to ensure it is editable"""
642 output = "# Genesis config yaml style\n"
643 output += "# vim:ts=2:et:sw=2:ai\n"
644 output += "#\n"
645 iface_keys = [elem for elem in datadump.keys() if elem.startswith('iface_')]
646 for key in sorted(set(datadump.keys()) - set(iface_keys)):
647 output += "%-10s: %s\n" % (key, format_yaml_value(datadump[key]))
648
649 output += "\n\n"
650
651 key_order = [ 'comment', 'interface', 'ip', 'desc', 'sdesc', 'mode', 'type',
652 'extra_type', 'channel', 'ssid', 'dhcp' ]
653
654 for iface_key in sorted(iface_keys):
655 output += "%s:\n" % iface_key
656 for key in key_order + list(sorted(set(datadump[iface_key].keys()) - set(key_order))):
657 if datadump[iface_key].has_key(key):
658 output += " %-11s: %s\n" % (key, format_yaml_value(datadump[iface_key][key]))
659 output += "\n\n"
660
661 return output
662
663
664
665def generate_wleiden_yaml(datadump, header=True):
666 """ Generate (petty) version of wleiden.yaml"""
667 for key in datadump.keys():
668 if key.startswith('autogen_'):
669 del datadump[key]
670 # Interface autogen cleanups
671 elif type(datadump[key]) == dict:
672 for key2 in datadump[key].keys():
673 if key2.startswith('autogen_'):
674 del datadump[key][key2]
675
676 output = generate_header("#") if header else ''
677 output += format_wleiden_yaml(datadump)
678 return output
679
680
681def generate_yaml(datadump):
682 return generate_config(datadump['nodename'], "wleiden.yaml", datadump)
683
684
685
686def generate_config(node, config, datadump=None):
687 """ Print configuration file 'config' of 'node' """
688 output = ""
689 try:
690 # Load config file
691 if datadump == None:
692 datadump = get_yaml(node)
693
694 if config == 'wleiden.yaml':
695 output += generate_wleiden_yaml(datadump)
696 elif config == 'authorized_keys':
697 f = open(os.path.join(NODE_DIR,"global_keys"), 'r')
698 output += f.read()
699 f.close()
700 elif config == 'dnsmasq.conf':
701 output += generate_dnsmasq_conf(datadump)
702 elif config == 'rc.conf.local':
703 output += generate_rc_conf_local(datadump)
704 elif config == 'resolv.conf':
705 output += generate_resolv_conf(datadump)
706 elif config == 'motd':
707 output += generate_motd(datadump)
708 else:
709 assert False, "Config not found!"
710 except IOError, e:
711 output += "[ERROR] Config file not found"
712 return output
713
714
715
716def process_cgi_request():
717 """ When calling from CGI """
718 # Update repository if requested
719 form = cgi.FieldStorage()
720 if form.getvalue("action") == "update":
721 print "Refresh: 5; url=."
722 print "Content-type:text/plain\r\n\r\n",
723 print "[INFO] Updating subverion, please wait..."
724 print subprocess.Popen(['svn', 'cleanup', "%s/.." % NODE_DIR], stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0],
725 print subprocess.Popen(['svn', 'up', "%s/.." % NODE_DIR], stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0],
726 print "[INFO] All done, redirecting in 5 seconds"
727 sys.exit(0)
728
729
730 base_uri = os.environ['PATH_INFO']
731 uri = base_uri.strip('/').split('/')
732
733 output = ""
734 if base_uri.endswith('/create/network.kml'):
735 output += "Content-type:application/vnd.google-earth.kml+xml\r\n\r\n"
736 output += make_network_kml.make_graph()
737 elif not uri[0]:
738 if is_text_request():
739 output += "Content-type:text/plain\r\n\r\n"
740 output += '\n'.join(get_hostlist())
741 else:
742 output += "Content-type:text/html\r\n\r\n"
743 output += generate_title(get_hostlist())
744 elif len(uri) == 1:
745 if is_text_request():
746 output += "Content-type:text/plain\r\n\r\n"
747 output += generate_node(uri[0])
748 else:
749 output += "Content-type:text/html\r\n\r\n"
750 output += generate_node_overview(uri[0])
751 elif len(uri) == 2:
752 output += "Content-type:text/plain\r\n\r\n"
753 output += generate_config(uri[0], uri[1])
754 else:
755 assert False, "Invalid option"
756 print output
757
758def get_fqdn(datadump):
759 # Proxy naming convention is special, as the proxy name is also included in
760 # the nodename, when it comes to the numbered proxies.
761 if datadump['nodetype'] == 'Proxy':
762 fqdn = datadump['nodetype'] + datadump['nodename'].replace('proxy','')
763 else:
764 # By default the full name is listed and also a shortname CNAME for easy use.
765 fqdn = datadump['nodetype'] + datadump['nodename']
766 return(fqdn)
767
768
769
770def make_dns(output_dir = 'dns', external = False):
771 items = dict()
772
773 # hostname is key, IP is value
774 wleiden_zone = dict()
775 wleiden_cname = dict()
776
777 pool = dict()
778 for node in get_hostlist():
779 logger.info("Processing host %s", node)
780 datadump = get_yaml(node)
781
782 # Proxy naming convention is special
783 fqdn = get_fqdn(datadump)
784 if datadump['nodetype'] == 'CNode':
785 wleiden_cname[datadump['nodename']] = fqdn
786
787 wleiden_zone[fqdn] = datadump['masterip']
788
789 # Hacking to get proper DHCP IPs and hostnames
790 for iface_key in get_interface_keys(datadump):
791 iface_name = datadump[iface_key]['interface'].replace(':',"-alias-")
792 (ip, netmask) = datadump[iface_key]['ip'].split('/')
793 try:
794 (dhcp_start, dhcp_stop) = datadump[iface_key]['dhcp'].split('-')
795 datadump[iface_key]['subnet'] = netmask2subnet(netmask)
796 dhcp_part = ".".join(ip.split('.')[0:3])
797 if ip != datadump['masterip']:
798 wleiden_zone["dhcp-gateway-%s.%s" % (iface_name, fqdn)] = ip
799 for i in range(int(dhcp_start), int(dhcp_stop) + 1):
800 wleiden_zone["dhcp-%s-%s.%s" % (i, iface_name, fqdn)] = "%s.%s" % (dhcp_part, i)
801 except (AttributeError, ValueError):
802 # First push it into a pool, to indentify the counter-part later on
803 addr = parseaddr(ip)
804 netmask = int(netmask)
805 addr = addr & ~((1 << (32 - netmask)) - 1)
806 if pool.has_key(addr):
807 pool[addr] += [(iface_name, fqdn, ip)]
808 else:
809 pool[addr] = [(iface_name, fqdn, ip)]
810 continue
811
812
813 def pool_to_name(node, pool_members):
814 """Convert the joined name to a usable pool name"""
815
816 # Get rid of the own entry
817 pool_members = list(set(pool_members) - set([fqdn]))
818
819 target = oldname = ''
820 for node in sorted(pool_members):
821 (name, number) = re.match('^([A-Za-z]+)([0-9]*)$',node).group(1,2)
822 target += "-" + number if name == oldname else "-" + node if target else node
823 oldname = name
824
825 return target
826
827
828 # WL uses an /29 to configure an interface. IP's are ordered like this:
829 # MasterA (.1) -- DeviceA (.2) <<>> DeviceB (.3) --- SlaveB (.4)
830
831 sn = lambda x: re.sub(r'(?i)^cnode','',x)
832
833 # Automatic naming convention of interlinks namely 2 + remote.lower()
834 for (key,value) in pool.iteritems():
835 # Make sure they are sorted from low-ip to high-ip
836 value = sorted(value, key=lambda x: parseaddr(x[2]))
837
838 if len(value) == 1:
839 (iface_name, fqdn, ip) = value[0]
840 wleiden_zone["2unused-%s.%s" % (iface_name, fqdn)] = ip
841
842 # Device DNS names
843 if 'cnode' in fqdn.lower():
844 wleiden_zone["d-at-%s.%s" % (iface_name, fqdn)] = showaddr(parseaddr(ip) + 1)
845 wleiden_cname["d-at-%s.%s" % (iface_name,sn(fqdn))] = "d-at-%s.%s" % (iface_name, fqdn)
846
847 elif len(value) == 2:
848 (a_iface_name, a_fqdn, a_ip) = value[0]
849 (b_iface_name, b_fqdn, b_ip) = value[1]
850 wleiden_zone["2%s.%s" % (b_fqdn,a_fqdn)] = a_ip
851 wleiden_zone["2%s.%s" % (a_fqdn,b_fqdn)] = b_ip
852
853 # Device DNS names
854 if 'cnode' in a_fqdn.lower() and 'cnode' in b_fqdn.lower():
855 wleiden_zone["d-at-%s.%s" % (a_iface_name, a_fqdn)] = showaddr(parseaddr(a_ip) + 1)
856 wleiden_zone["d-at-%s.%s" % (b_iface_name, b_fqdn)] = showaddr(parseaddr(b_ip) - 1)
857 wleiden_cname["d-at-%s.%s" % (a_iface_name,sn(a_fqdn))] = "d-at-%s.%s" % (a_iface_name, a_fqdn)
858 wleiden_cname["d-at-%s.%s" % (b_iface_name,sn(b_fqdn))] = "d-at-%s.%s" % (b_iface_name, b_fqdn)
859 wleiden_cname["d2%s.%s" % (sn(b_fqdn),sn(a_fqdn))] = "d-at-%s.%s" % (a_iface_name, a_fqdn)
860 wleiden_cname["d2%s.%s" % (sn(a_fqdn),sn(b_fqdn))] = "d-at-%s.%s" % (b_iface_name, b_fqdn)
861
862 else:
863 pool_members = [k[1] for k in value]
864 for item in value:
865 (iface_name, fqdn, ip) = item
866 pool_name = "2pool-" + showaddr(key).replace('.','-') + "-" + pool_to_name(fqdn,pool_members)
867 wleiden_zone["%s.%s" % (pool_name, fqdn)] = ip
868
869 # Include static DNS entries
870 # XXX: Should they override the autogenerated results?
871 # XXX: Convert input to yaml more useable.
872 # Format:
873 ##; this is a comment
874 ## roomburgh=CNodeRoomburgh1
875 ## apkerk1.CNodeVosko=172.17.176.8 ;this as well
876 dns = yaml.load(open(os.path.join(NODE_DIR,'../dns/staticDNS.yaml'),'r'))
877
878 # Hack to allow special entries, for development
879 wleiden_raw = dns['raw']
880 del dns['raw']
881
882 for comment, block in dns.iteritems():
883 for k,v in block.iteritems():
884 if valid_addr(v):
885 wleiden_zone[k] = v
886 else:
887 wleiden_cname[k] = v
888
889 details = dict()
890 # 24 updates a day allowed
891 details['serial'] = time.strftime('%Y%m%d%H')
892
893 if external:
894 dns_masters = ['siteview.wirelessleiden.nl', 'ns1.vanderzwet.net']
895 else:
896 dns_masters = ['sunny.wleiden.net']
897
898 details['master'] = dns_masters[0]
899 details['ns_servers'] = '\n'.join(['\tNS\t%s.' % x for x in dns_masters])
900
901 dns_header = '''
902$TTL 3h
903%(zone)s. SOA %(master)s. beheer.lijst.wirelessleiden.nl. ( %(serial)s 1d 12h 1w 3h )
904 ; Serial, Refresh, Retry, Expire, Neg. cache TTL
905
906%(ns_servers)s
907 \n'''
908
909
910 if not os.path.isdir(output_dir):
911 os.makedirs(output_dir)
912 details['zone'] = 'wleiden.net'
913 f = open(os.path.join(output_dir,"db." + details['zone']), "w")
914 f.write(dns_header % details)
915
916 for host,ip in wleiden_zone.iteritems():
917 if valid_addr(ip):
918 f.write("%s.wleiden.net. IN A %s \n" % (host.lower(), ip))
919 for source,dest in wleiden_cname.iteritems():
920 f.write("%s.wleiden.net. IN CNAME %s.wleiden.net.\n" % (source.lower(), dest.lower()))
921 for source, dest in wleiden_raw.iteritems():
922 f.write("%s.wleiden.net. %s\n" % (source, dest))
923 f.close()
924
925 # Create whole bunch of specific sub arpa zones. To keep it compliant
926 for s in range(16,32):
927 details['zone'] = '%i.172.in-addr.arpa' % s
928 f = open(os.path.join(output_dir,"db." + details['zone']), "w")
929 f.write(dns_header % details)
930
931 #XXX: Not effient, fix to proper data structure and do checks at other
932 # stages
933 for host,ip in wleiden_zone.iteritems():
934 if valid_addr(ip):
935 if int(ip.split('.')[1]) == s:
936 rev_ip = '.'.join(reversed(ip.split('.')))
937 f.write("%s.in-addr.arpa. IN PTR %s.wleiden.net.\n" % (rev_ip.lower(), host.lower()))
938 f.close()
939
940
941def usage():
942 print """Usage: %s <standalone [port] |test [test arguments]|static|dns>
943Examples:
944\tdns [outputdir] = Generate BIND compliant zone files in dns.
945\tstandalone = Run configurator webserver [default port=8000]
946\twind-export = Generate SQL import scripts for WIND database
947\tfull-export = Generate yaml export script for heatmap.
948\tstatic = Generate all config files and store on disk
949\t with format ./static/%%NODE%%/%%FILE%%
950\ttest CNodeRick dnsmasq.conf = Receive output of CGI script
951\t for arguments CNodeRick/dnsmasq.conf
952\tlist <all|nodes|proxies> = List systems which marked up.
953"""
954 exit(0)
955
956
957def is_text_request():
958 """ Find out whether we are calling from the CLI or any text based CLI utility """
959 try:
960 return os.environ['HTTP_USER_AGENT'].split()[0] in ['curl', 'fetch', 'wget']
961 except KeyError:
962 return True
963
964def main():
965 """Hard working sub"""
966 # Allow easy hacking using the CLI
967 if not os.environ.has_key('PATH_INFO'):
968 if len(sys.argv) < 2:
969 usage()
970
971 if sys.argv[1] == "standalone":
972 import SocketServer
973 import CGIHTTPServer
974 # Hop to the right working directory.
975 os.chdir(os.path.dirname(__file__))
976 try:
977 PORT = int(sys.argv[2])
978 except (IndexError,ValueError):
979 PORT = 8000
980
981 class MyCGIHTTPRequestHandler(CGIHTTPServer.CGIHTTPRequestHandler):
982 """ Serve this CGI from the root of the webserver """
983 def is_cgi(self):
984 if "favicon" in self.path:
985 return False
986
987 self.cgi_info = (os.path.basename(__file__), self.path)
988 self.path = ''
989 return True
990 handler = MyCGIHTTPRequestHandler
991 SocketServer.TCPServer.allow_reuse_address = True
992 httpd = SocketServer.TCPServer(("", PORT), handler)
993 httpd.server_name = 'localhost'
994 httpd.server_port = PORT
995
996 logger.info("serving at port %s", PORT)
997 try:
998 httpd.serve_forever()
999 except KeyboardInterrupt:
1000 httpd.shutdown()
1001 logger.info("All done goodbye")
1002 elif sys.argv[1] == "test":
1003 os.environ['PATH_INFO'] = "/".join(sys.argv[2:])
1004 os.environ['SCRIPT_NAME'] = __file__
1005 process_cgi_request()
1006 elif sys.argv[1] == "unit-test":
1007 os.environ['SCRIPT_NAME'] = __file__
1008 for host in get_hostlist():
1009 for outfile in files:
1010 os.environ['PATH_INFO'] = "/".join([host,outfile])
1011 try:
1012 process_cgi_request()
1013 except Exception:
1014 print "# ERROR: %s" % os.environ['PATH_INFO']
1015 raise
1016
1017
1018 elif sys.argv[1] == "static":
1019 items = dict()
1020 for node in get_hostlist():
1021 items['node'] = node
1022 items['wdir'] = "./static/%(node)s" % items
1023 if not os.path.isdir(items['wdir']):
1024 os.makedirs(items['wdir'])
1025 datadump = get_yaml(node)
1026 for config in files:
1027 items['config'] = config
1028 logger.info("## Generating %(node)s %(config)s" % items)
1029 f = open("%(wdir)s/%(config)s" % items, "w")
1030 f.write(generate_config(node, config, datadump))
1031 f.close()
1032 elif sys.argv[1] == "wind-export":
1033 items = dict()
1034 for node in get_hostlist():
1035 datadump = get_yaml(node)
1036 sql = """INSERT IGNORE INTO nodes (name, name_ns, longitude, latitude)
1037 VALUES ('%(nodename)s', '%(nodename)s', %(latitude)s, %(longitude)s);""" % datadump;
1038 sql = """INSERT IGNORE INTO users_nodes (user_id, node_id, owner)
1039 VALUES (
1040 (SELECT id FROM users WHERE username = 'rvdzwet'),
1041 (SELECT id FROM nodes WHERE name = '%(nodename)s'),
1042 'Y');""" % datadump
1043 #for config in files:
1044 # items['config'] = config
1045 # print "## Generating %(node)s %(config)s" % items
1046 # f = open("%(wdir)s/%(config)s" % items, "w")
1047 # f.write(generate_config(node, config, datadump))
1048 # f.close()
1049 for node in get_hostlist():
1050 datadump = get_yaml(node)
1051 for iface_key in sorted([elem for elem in datadump.keys() if elem.startswith('iface_')]):
1052 ifacedump = datadump[iface_key]
1053 if ifacedump.has_key('mode') and ifacedump['mode'] == 'ap-wds':
1054 ifacedump['nodename'] = datadump['nodename']
1055 if not ifacedump.has_key('channel') or not ifacedump['channel']:
1056 ifacedump['channel'] = 0
1057 sql = """INSERT INTO links (node_id, type, ssid, protocol, channel, status)
1058 VALUES ((SELECT id FROM nodes WHERE name = '%(nodename)s'), 'ap',
1059 '%(ssid)s', 'IEEE 802.11b', %(channel)s, 'active');""" % ifacedump
1060 elif sys.argv[1] == "full-export":
1061 hosts = {}
1062 for node in get_hostlist():
1063 datadump = get_yaml(node)
1064 hosts[datadump['nodename']] = datadump
1065 print yaml.dump(hosts)
1066
1067 elif sys.argv[1] == "dns":
1068 make_dns(sys.argv[2] if len(sys.argv) > 2 else 'dns', 'external' in sys.argv)
1069 elif sys.argv[1] == "cleanup":
1070 # First generate all datadumps
1071 datadumps = dict()
1072 for host in get_hostlist():
1073 logger.info("# Processing: %s", host)
1074 datadump = get_yaml(host)
1075 datadumps[get_fqdn(datadump)] = datadump
1076
1077 for host,datadump in datadumps.iteritems():
1078 datadump['latitude'], datadump['longitude'] = rdnap.rd2etrs(datadump['rdnap_x'], datadump['rdnap_y'])
1079 if datadump['nodename'].startswith('Proxy'):
1080 datadump['nodename'] = datadump['nodename'].lower()
1081
1082 for iface_key in datadump['autogen_iface_keys']:
1083 # Wireless Leiden SSID have an consistent lowercase/uppercase
1084 if datadump[iface_key].has_key('ssid'):
1085 ssid = datadump[iface_key]['ssid']
1086 prefix = 'ap-WirelessLeiden-'
1087 if ssid.lower().startswith(prefix.lower()):
1088 datadump[iface_key]['ssid'] = prefix + ssid[len(prefix)].upper() + ssid[len(prefix) + 1:]
1089 if datadump[iface_key].has_key('ns_ip') and not datadump[iface_key].has_key('mode'):
1090 datadump[iface_key]['mode'] = 'autogen-FIXME'
1091 if not datadump[iface_key].has_key('desc'):
1092 datadump[iface_key]['desc'] = 'autogen-FIXME'
1093 store_yaml(datadump)
1094 elif sys.argv[1] == "list":
1095 if sys.argv[2] == "nodes":
1096 systems = get_nodelist()
1097 elif sys.argv[2] == "proxies":
1098 systems = get_proxylist()
1099 elif sys.argv[2] == "all":
1100 systems = get_hostlist()
1101 else:
1102 usage()
1103 for system in systems:
1104 datadump = get_yaml(system)
1105 if datadump['status'] == "up":
1106 print system
1107 elif sys.argv[1] == "create":
1108 if sys.argv[2] == "network.kml":
1109 print make_network_kml.make_graph()
1110 else:
1111 usage()
1112 usage()
1113 else:
1114 # Do not enable debugging for config requests as it highly clutters the output
1115 if not is_text_request():
1116 cgitb.enable()
1117 process_cgi_request()
1118
1119
1120if __name__ == "__main__":
1121 main()
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