author | Tero Marttila <terom@paivola.fi> |
Thu, 11 Oct 2012 01:25:05 +0300 | |
changeset 10 | 513eb70e54f2 |
parent 9 | 3334d8ddf2f1 |
child 11 | d1e17bd498e7 |
permissions | -rw-r--r-- |
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from pvl.verkko import db, web |
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from pvl.html import tags as html |
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import re |
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import socket # dns |
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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 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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def when (self) : |
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return '{frm} - {to}'.format( |
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frm = self.first_seen.strftime(self.DATE_FMT), |
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to = self.last_seen.strftime(self.DATE_FMT), |
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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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if not self.ip : |
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return None |
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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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return host |
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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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#_mac = db.dhcp_hosts.c.mac, |
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#_name = db.dhcp_hosts.c.name, |
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)) |
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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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'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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} |
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HOST_SORT = Host.last_seen.desc() |
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def query (self) : |
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hosts = self.db.query(Host) |
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# sort ? |
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self.sort = self.request.args.get('sort') |
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if self.sort : |
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sort = self.HOST_ATTRS[self.sort] |
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else : |
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sort = self.HOST_SORT |
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log.debug("sort: %s", sort) |
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hosts = hosts.order_by(sort) |
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# k |
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return hosts |
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def render_hosts (self, hosts, title=None, filters=False) : |
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COLS = ( |
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#title sort filter class |
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('IP', 'ip', 'ip', 'ip' ), |
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('MAC', 'mac', 'mac', 'mac' ), |
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('Hostname', 'name', False, False ), |
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('Seen', 'seen', False, False ), |
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) |
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def url (**opts) : |
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args = dict(filters) |
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args.update(opts) |
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return self.url(**args) |
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table = html.table( |
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html.caption(title) if title else None, |
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html.thead( |
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html.tr( |
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html.th('#'), |
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( |
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html.th( |
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html.a(href=url(sort=sort))(title) if sort else (title) |
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) for title, sort, filter, class_ in COLS |
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) |
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), |
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html.tr(class_='filter')( |
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html.td( |
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html.input(type='submit', value=u'\u00BF'), |
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), |
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( |
10 | 142 |
html.td(class_=class_)( |
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html.input(type='text', name=filter, value=filters.get(filter)) if filter else None |
10 | 144 |
) for title, sort, filter, class_ in COLS |
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) |
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) if filters is not False else None |
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), |
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html.tbody( |
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html.tr(class_=('alternate' if i % 2 else None), id=host.id)( |
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html.td(class_='id')( |
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html.a(href=self.url(ItemHandler, id=host.id))( |
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'#' #host['rowid']) |
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) |
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), |
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155 |
html.td(class_='ip')( |
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html.a(href=self.url(ListHandler, ip=host.ip))( |
6 | 157 |
host.ip |
158 |
) |
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), |
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html.td(class_='mac')( |
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html.a(href=self.url(ListHandler, mac=host.mac))( |
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host.render_mac() |
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) |
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), |
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165 |
html.td(host.render_name()), |
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166 |
html.td(host.when()), |
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167 |
) for i, host in enumerate(hosts) |
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) |
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) |
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|
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if filters is False : |
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return table |
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else : |
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return html.form(method='get', action=self.url())( |
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html.input(type='hidden', name='sort', value=self.sort), |
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table, |
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) |
4 | 178 |
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def render_host (self, host, hosts) : |
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attrs = ( |
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('IP', host.ip), |
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('MAC', host.mac), |
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('Hostname', host.name), |
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184 |
('DNS', host.dns()), |
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('First seen', host.first_seen), |
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('Last seen', host.last_seen), |
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187 |
) |
4 | 188 |
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return ( |
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html.h2('Host'), |
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191 |
html.dl( |
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(html.dt(title), html.dd(value)) for title, value in attrs |
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193 |
), |
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194 |
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html.h2('Related'), |
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self.render_hosts(hosts), |
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197 |
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html.a(href=self.url(ListHandler))(html('«'), 'Back'), |
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199 |
) |
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200 |
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201 |
class ItemHandler (BaseHandler) : |
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202 |
def process (self, id) : |
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self.hosts = self.query() |
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self.host = self.hosts.get(id) |
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205 |
|
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206 |
if not self.host : |
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raise web.NotFound("No such host: {id}".format(id=id)) |
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208 |
|
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209 |
self.hosts = self.hosts.filter((Host.ip == self.host.ip) | (Host.mac == self.host.mac)) |
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210 |
|
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211 |
def title (self) : |
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return u"DHCP Host: {self.host}".format(self=self) |
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213 |
|
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214 |
def render (self) : |
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return self.render_host(self.host, self.hosts) |
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216 |
|
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217 |
class ListHandler (BaseHandler) : |
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218 |
def process (self) : |
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self.hosts = self.query() |
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220 |
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221 |
# filter? |
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self.filters = {} |
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223 |
|
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224 |
for attr in self.HOST_ATTRS : |
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value = self.request.args.get(attr) |
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226 |
|
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227 |
if not value : |
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228 |
continue |
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229 |
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230 |
# preprocess |
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231 |
like = False |
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232 |
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233 |
if value.endswith('*') : |
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like = value.replace('*', '%') |
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235 |
|
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236 |
elif attr == 'mac' : |
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value = Host.normalize_mac(value) |
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238 |
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239 |
# filter |
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240 |
col = self.HOST_ATTRS[attr] |
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241 |
|
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242 |
if like : |
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243 |
filter = (col.like(like)) |
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244 |
else : |
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245 |
filter = (col == value) |
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246 |
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247 |
self.hosts = self.hosts.filter(filter) |
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248 |
self.filters[attr] = value |
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249 |
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250 |
def title (self) : |
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251 |
if self.filters : |
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252 |
return "DHCP Hosts: {filters}".format(filters=', '.join(self.filters.itervalues())) |
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253 |
else : |
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254 |
return "DHCP Hosts" |
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255 |
|
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256 |
def render (self) : |
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257 |
return ( |
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258 |
self.render_hosts(self.hosts, filters=self.filters), |
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259 |
|
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260 |
html.a(href=self.url())(html('«'), 'Back') if self.filters else None, |
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261 |
) |