author | Tero Marttila <terom@paivola.fi> |
Fri, 19 Oct 2012 02:39:57 +0300 | |
changeset 17 | 29f0cf9220e0 |
parent 16 | 51509b5ce1c0 |
child 19 | 4e2e26f4d058 |
permissions | -rw-r--r-- |
0 | 1 |
from pvl.verkko import db, web |
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from pvl.verkko.utils import parse_timedelta, IPv4Network |
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from pvl.html import tags as html |
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import re |
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import datetime |
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import socket # dns |
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import math |
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import logging; log = logging.getLogger('pvl.verkko.hosts') |
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# XXX: this should actually be DHCPHost |
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class Host (object) : |
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DATE_FMT = '%Y%m%d' |
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MAC_HEX = r'([A-Za-z0-9]{2})' |
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MAC_SEP = r'[-:.]?' |
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MAC_RE = re.compile(MAC_SEP.join([MAC_HEX] * 6)) |
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@classmethod |
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def query (cls, session, seen=None) : |
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""" |
02c21749cb4f
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seen - select hosts seen during given timedelta period |
02c21749cb4f
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""" |
02c21749cb4f
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|
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query = session.query(cls) |
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return query |
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@classmethod |
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def normalize_mac (cls, mac) : |
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match = cls.MAC_RE.search(mac) |
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if not match : |
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raise ValueError(mac) |
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else : |
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return ':'.join(hh.lower() for hh in match.groups()) |
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def __init__ (self, ip, mac, name=None) : |
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self.ip = ip |
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self.mac = mac |
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self.name = name |
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def render_mac (self) : |
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if not self.mac : |
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return None |
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elif len(self.mac) > (6 * 2 + 5) : |
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return u'???' |
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else : |
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return unicode(self.mac) |
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def render_name (self) : |
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if self.name : |
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return self.name.decode('ascii', 'replace') |
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else : |
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return None |
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STATES = { |
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'DHCPACK': 'ack', |
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'DHCPNAK': 'nak', |
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'DHCPRELEASE': 'release', |
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'DHCPDISCOVER': 'search', |
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'DHCPREQUEST': 'search', |
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'DHCPOFFER': 'search', |
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} |
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def state_class (self) : |
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if self.error : |
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return 'dhcp-error' |
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elif self.state in self.STATES : |
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return 'dhcp-' + self.STATES[self.state] |
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02c21749cb4f
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else : |
02c21749cb4f
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return None |
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def state_title (self) : |
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return self.error # or None |
51509b5ce1c0
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51509b5ce1c0
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def render_state (self) : |
51509b5ce1c0
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if self.error : |
51509b5ce1c0
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return "{self.state}: {self.error}".format(self=self) |
51509b5ce1c0
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else : |
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return self.state |
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def when (self) : |
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return ( |
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html.span(title=self.first_seen)(self.first_seen.strftime(self.DATE_FMT)), |
51509b5ce1c0
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'-', |
51509b5ce1c0
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|
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html.span(title=self.last_seen)(self.last_seen.strftime(self.DATE_FMT)), |
0 | 95 |
) |
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||
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def dns (self) : |
|
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""" |
|
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Reverse-DNS lookup. |
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""" |
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||
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if not self.ip : |
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return None |
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||
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sockaddrs = set(sockaddr for family, socktype, proto, canonname, sockaddr in socket.getaddrinfo(self.ip, 0, 0, 0, 0, socket.AI_NUMERICHOST)) |
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for sockaddr in sockaddrs : |
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try : |
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host, port = socket.getnameinfo(sockaddr, socket.NI_NAMEREQD) |
|
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except socket.gaierror : |
|
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continue |
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||
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return host |
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||
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def __unicode__ (self) : |
|
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return u"{host.ip} ({host.mac})".format(host=self) |
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db.mapper(Host, db.dhcp_hosts, properties=dict( |
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#id = db.dhcp_hosts.c.rowid, |
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120 |
#state = db.dhcp_hosts.c., |
0 | 121 |
)) |
122 |
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class BaseHandler (web.Handler) : |
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HOST_ATTRS = { |
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'id': Host.id, |
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'net': Host.gw, |
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'ip': Host.ip, |
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'mac': Host.mac, |
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'name': Host.name, |
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'seen': Host.last_seen, |
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'state': Host.state, |
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'count': Host.count, |
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} |
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HOST_SORT = Host.last_seen.desc() |
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def query (self) : |
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return self.db.query(Host) |
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139 |
|
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140 |
def sort (self, hosts, default=HOST_SORT) : |
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self.sort = self.request.args.get('sort') |
0 | 142 |
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143 |
if self.sort : |
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144 |
sort = self.HOST_ATTRS[self.sort] |
3 | 145 |
else : |
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146 |
sort = default |
0 | 147 |
|
3 | 148 |
log.debug("sort: %s", sort) |
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149 |
|
3 | 150 |
hosts = hosts.order_by(sort) |
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152 |
# k |
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153 |
return hosts |
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154 |
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|
155 |
def render_hosts (self, hosts, title=None, filters=False, page=None) : |
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156 |
COLS = ( |
10 | 157 |
#title sort filter class |
158 |
('IP', 'ip', 'ip', 'ip' ), |
|
159 |
('MAC', 'mac', 'mac', 'mac' ), |
|
160 |
('Hostname', 'name', False, False ), |
|
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('Network', 'net', 'net', False ), |
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('Seen', 'seen', 'seen', False ), |
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('State', 'state', 'state', False ), |
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164 |
) |
4 | 165 |
|
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166 |
def url (**opts) : |
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args = dict() |
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168 |
|
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if filters : |
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args.update(filters) |
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171 |
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args.update(opts) |
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173 |
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return self.url(**args) |
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175 |
|
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176 |
def paginate (page, count=None) : |
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177 |
""" |
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178 |
Render pagination. |
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""" |
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180 |
|
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181 |
if count is not None : |
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pages = int(math.ceil(count / self.PAGE)) # XXX: bad self.PAGE |
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183 |
else : |
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184 |
pages = None |
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185 |
|
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186 |
if page > 0 : |
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187 |
yield html.a(href=url(page=0))(html("«« First")) |
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yield html.a(href=url(page=(page - 1)))(html("« Prev")) |
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189 |
|
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yield html.span("Page {page} of {pages}".format(page=(page + 1), pages=(pages or '???'))) |
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191 |
|
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192 |
yield html.a(href=url(page=(page + 1)))(html("» Next")) |
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193 |
|
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194 |
|
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195 |
table = html.table( |
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196 |
html.caption(title) if title else None, |
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197 |
html.thead( |
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198 |
html.tr( |
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199 |
html.th('#'), |
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200 |
( |
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201 |
html.th( |
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202 |
html.a(href=url(sort=sort))(title) if sort else (title) |
10 | 203 |
) for title, sort, filter, class_ in COLS |
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204 |
) |
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205 |
), |
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206 |
html.tr(class_='filter')( |
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207 |
html.td( |
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208 |
html.input(type='submit', value=u'\u00BF'), |
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209 |
), |
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210 |
( |
10 | 211 |
html.td(class_=class_)( |
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212 |
html.input(type='text', name=filter, value=filters.get(filter)) if filter else None |
10 | 213 |
) for title, sort, filter, class_ in COLS |
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214 |
) |
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215 |
) if filters is not False else None |
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216 |
), |
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217 |
html.tbody( |
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218 |
html.tr(class_=('alternate' if i % 2 else None), id=host.id)( |
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219 |
html.th( |
6 | 220 |
html.a(href=self.url(ItemHandler, id=host.id))( |
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221 |
'#' #host.id |
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222 |
) |
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|
223 |
), |
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224 |
html.td(class_='ip')( |
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225 |
html.a(href=self.url(ListHandler, ip=host.ip))( |
6 | 226 |
host.ip |
227 |
) |
|
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228 |
), |
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|
229 |
html.td(class_='mac')( |
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230 |
html.a(href=self.url(ListHandler, mac=host.mac))( |
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231 |
host.render_mac() |
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232 |
) |
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|
233 |
), |
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|
234 |
html.td(host.render_name()), |
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235 |
html.td( |
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236 |
host.gw |
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237 |
), |
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238 |
html.td(host.when()), |
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239 |
html.td(class_=host.state_class(), title=host.state_title())(host.state), |
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240 |
) for i, host in enumerate(hosts) |
12 | 241 |
), |
242 |
html.tfoot( |
|
243 |
html.tr( |
|
244 |
html.td(colspan=(1 + len(COLS)))( |
|
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245 |
paginate(page) if page is not None else ( |
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246 |
# XXX: does separate SELECT count() |
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247 |
"{count} hosts".format(count=hosts.count()) |
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248 |
) |
12 | 249 |
) |
250 |
) |
|
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251 |
) |
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252 |
) |
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253 |
|
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254 |
if filters is False : |
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255 |
return table |
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256 |
else : |
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257 |
return html.form(method='get', action=self.url())( |
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258 |
html.input(type='hidden', name='sort', value=self.sort), |
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259 |
table, |
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260 |
) |
4 | 261 |
|
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262 |
def render_host (self, host, hosts) : |
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263 |
attrs = ( |
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264 |
('Network', host.gw), |
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265 |
('IP', host.ip), |
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266 |
('MAC', host.mac), |
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267 |
('Hostname', host.name), |
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268 |
('DNS', host.dns()), |
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269 |
('First seen', host.first_seen), |
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270 |
('Last seen', host.last_seen), |
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271 |
('Last state', host.render_state()), |
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272 |
('Total messages', host.count), |
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273 |
) |
4 | 274 |
|
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275 |
return ( |
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276 |
html.h2('Host'), |
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277 |
html.dl( |
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278 |
(html.dt(title), html.dd(value)) for title, value in attrs |
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279 |
), |
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280 |
|
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281 |
html.h2('Related'), |
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282 |
self.render_hosts(hosts), |
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283 |
|
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284 |
html.a(href=self.url(ListHandler))(html('«'), 'Back'), |
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285 |
) |
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|
286 |
|
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287 |
class ItemHandler (BaseHandler) : |
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288 |
def process (self, id) : |
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289 |
self.hosts = self.query() |
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290 |
self.host = self.hosts.get(id) |
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291 |
|
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292 |
if not self.host : |
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293 |
raise web.NotFound("No such host: {id}".format(id=id)) |
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294 |
|
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295 |
self.hosts = self.sort(self.hosts.filter((Host.ip == self.host.ip) | (Host.mac == self.host.mac))) |
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|
296 |
|
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297 |
def title (self) : |
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298 |
return u"DHCP Host: {self.host}".format(self=self) |
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|
299 |
|
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300 |
def render (self) : |
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301 |
return self.render_host(self.host, self.hosts) |
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302 |
|
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303 |
class ListHandler (BaseHandler) : |
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304 |
# pagination |
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305 |
PAGE = 10 |
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306 |
|
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307 |
def process (self) : |
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308 |
hosts = self.query() |
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309 |
|
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310 |
# filter? |
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311 |
column = None |
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312 |
self.filters = {} |
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|
313 |
|
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|
314 |
for attr in self.HOST_ATTRS : |
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315 |
value = self.request.args.get(attr) |
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|
316 |
|
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317 |
if not value : |
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318 |
continue |
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|
319 |
|
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|
320 |
if attr == 'seen' : |
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|
321 |
column = Host.last_seen |
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|
322 |
|
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323 |
if value.isdigit() : |
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324 |
# specific date |
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|
325 |
date = datetime.datetime.strptime(value, Host.DATE_FMT).date() |
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|
326 |
|
14
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|
327 |
filter = db.between(date.strftime(Host.DATE_FMT), |
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|
328 |
db.func.strftime(Host.DATE_FMT, Host.first_seen), |
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|
329 |
db.func.strftime(Host.DATE_FMT, Host.last_seen) |
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|
330 |
) |
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|
331 |
else : |
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|
332 |
# recent |
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|
333 |
timedelta = parse_timedelta(value) |
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|
334 |
|
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|
335 |
filter = ((db.func.now() - Host.last_seen) < timedelta) |
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|
336 |
|
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|
337 |
# XXX: for sqlite, pgsql should handle this natively? |
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|
338 |
# to seconds |
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|
339 |
#timeout = timedelta.days * (24 * 60 * 60) + timedelta.seconds |
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|
340 |
|
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|
341 |
# WHERE strftime('%s', 'now') - strftime('%s', last_seen) < :timeout |
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|
342 |
#filter = (db.func.strftime('%s', 'now') - db.func.strftime('%s', Host.last_seen) < timeout) |
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|
343 |
|
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|
344 |
elif attr == 'ip' : |
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|
345 |
column = Host.ip |
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|
346 |
|
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|
347 |
# column is IPv4 string literal format... |
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|
348 |
if '/' in value : |
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|
349 |
filter = (db.func.inet(Host.ip).op('<<')(db.func.cidr(value))) |
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|
350 |
else : |
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|
351 |
filter = (db.func.inet(Host.ip) == db.func.inet(value)) |
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|
352 |
|
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|
353 |
else : |
14
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|
354 |
# preprocess |
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|
355 |
like = False |
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|
356 |
|
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|
357 |
if value.endswith('*') : |
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|
358 |
like = value.replace('*', '%') |
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|
359 |
|
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|
360 |
elif attr == 'mac' : |
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|
361 |
value = Host.normalize_mac(value) |
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|
362 |
|
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|
363 |
# filter |
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|
364 |
column = self.HOST_ATTRS[attr] |
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|
365 |
|
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|
366 |
if like : |
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|
367 |
filter = (column.like(like)) |
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|
368 |
else : |
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|
369 |
filter = (column == value) |
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|
370 |
|
14
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|
371 |
hosts = hosts.filter(filter) |
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|
372 |
self.filters[attr] = value |
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|
373 |
|
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|
374 |
# sort XXX: default per filter column |
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|
375 |
hosts = self.sort(hosts) #, column) |
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|
376 |
|
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|
377 |
# page? |
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|
378 |
self.page = self.request.args.get('page') |
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|
379 |
|
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|
380 |
if self.page : |
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|
381 |
self.page = int(self.page) |
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|
382 |
|
51509b5ce1c0
request per session, move to postgres, rename columns, fixup state/name/error handling in updates
Tero Marttila <terom@paivola.fi>
parents:
14
diff
changeset
|
383 |
hosts = hosts.offset(self.page * self.PAGE).limit(self.PAGE) |
51509b5ce1c0
request per session, move to postgres, rename columns, fixup state/name/error handling in updates
Tero Marttila <terom@paivola.fi>
parents:
14
diff
changeset
|
384 |
|
14
02c21749cb4f
pvl.verkko: re-add last_msg back to db, implement state, seen filtering in web frontend
Tero Marttila <terom@paivola.fi>
parents:
12
diff
changeset
|
385 |
self.hosts = hosts |
5
91970ce3fc6b
pvl.verkko.hosts: split up Handlers
Tero Marttila <terom@paivola.fi>
parents:
4
diff
changeset
|
386 |
|
91970ce3fc6b
pvl.verkko.hosts: split up Handlers
Tero Marttila <terom@paivola.fi>
parents:
4
diff
changeset
|
387 |
def title (self) : |
8
f64c44640b15
hosts: change ListHandler to use filtering
Tero Marttila <terom@paivola.fi>
parents:
6
diff
changeset
|
388 |
if self.filters : |
f64c44640b15
hosts: change ListHandler to use filtering
Tero Marttila <terom@paivola.fi>
parents:
6
diff
changeset
|
389 |
return "DHCP Hosts: {filters}".format(filters=', '.join(self.filters.itervalues())) |
f64c44640b15
hosts: change ListHandler to use filtering
Tero Marttila <terom@paivola.fi>
parents:
6
diff
changeset
|
390 |
else : |
f64c44640b15
hosts: change ListHandler to use filtering
Tero Marttila <terom@paivola.fi>
parents:
6
diff
changeset
|
391 |
return "DHCP Hosts" |
5
91970ce3fc6b
pvl.verkko.hosts: split up Handlers
Tero Marttila <terom@paivola.fi>
parents:
4
diff
changeset
|
392 |
|
91970ce3fc6b
pvl.verkko.hosts: split up Handlers
Tero Marttila <terom@paivola.fi>
parents:
4
diff
changeset
|
393 |
def render (self) : |
8
f64c44640b15
hosts: change ListHandler to use filtering
Tero Marttila <terom@paivola.fi>
parents:
6
diff
changeset
|
394 |
return ( |
16
51509b5ce1c0
request per session, move to postgres, rename columns, fixup state/name/error handling in updates
Tero Marttila <terom@paivola.fi>
parents:
14
diff
changeset
|
395 |
self.render_hosts(self.hosts, filters=self.filters, page=self.page), |
8
f64c44640b15
hosts: change ListHandler to use filtering
Tero Marttila <terom@paivola.fi>
parents:
6
diff
changeset
|
396 |
|
f64c44640b15
hosts: change ListHandler to use filtering
Tero Marttila <terom@paivola.fi>
parents:
6
diff
changeset
|
397 |
html.a(href=self.url())(html('«'), 'Back') if self.filters else None, |
f64c44640b15
hosts: change ListHandler to use filtering
Tero Marttila <terom@paivola.fi>
parents:
6
diff
changeset
|
398 |
) |