def _parse_dhcp_settings(html):
regex = '//\s+nvram = \{(.+?)\};\n\nxob = '
match_object = re.compile(regex, re.DOTALL).search(html)
if match_object is None:
raise RouterParseError('Cannot parse DHCP settings')
array = _parse_data_structure(match_object.group(1))
try:
ip_start, ip_end = array['dhcpd_startip'], array['dhcpd_endip']
is_enabled = array['lan_proto'] == 'dhcp'
except KeyError:
raise RouterParseError('Bad nvram for DHCP settings')
if not validator.is_valid_ip_address(ip_start):
raise RouterParseError('Invalid DHCP start IP: %s' % ip_start)
if not validator.is_valid_ip_address(ip_end):
raise RouterParseError('Invalid DHCP end IP: %s' % ip_end)
obj = DHCPServerSettings()
obj.set_enabled_status(is_enabled)
obj.set_ip_start(ip_start)
obj.set_ip_end(ip_end)
obj.ensure_valid()
return obj
def parse_dhcp_settings(html):
is_enabled = '<INPUT TYPE=CHECKBOX NAME=_HE CHECKED>' in html
# 192.168.1 is hardcoded.. only the last part changes
regex = re.compile('<INPUT NAME=HR0 VALUE="([0-9]+)" SIZE=3 MAXLENGTH=3>')
match_object = regex.search(html)
if match_object is None:
raise RouterParseError('Cannot parse dhcp start ip!')
ip_last_part = match_object.group(1)
ip_start = '192.168.1.%s' % ip_last_part
# get the pool size to determine what the last IP is
regex = re.compile('document.forms\[0\]\._HR1\.value=([0-9]+)-([0-9]+)')
match_object = regex.search(html)
if match_object is None:
raise RouterParseError('Cannot parse dhcp pool size!')
num1, num2 = map(int, match_object.groups())
pool_size = num1 - num2
ip_start_long = converter.ip2long(ip_start)
ip_end_long = ip_start_long + pool_size
ip_end = converter.long2ip(ip_end_long)
settings = DHCPServerSettings()
settings.set_enabled_status(is_enabled)
settings.set_ip_start(ip_start)
settings.set_ip_end(ip_end)
settings.ensure_valid()
return settings
def _parse_dhcp_settings(html):
regex = re.compile('name="dhcpRange(?:Start|End)" size="15" maxlength="15" value="(.+?)"')
try:
ip_start, ip_end = regex.findall(html)
except ValueError:
raise RouterParseError('Cannot find DHCP start/end range')
else:
settings = DHCPServerSettings()
settings.set_ip_start(ip_start)
settings.set_ip_end(ip_end)
settings.set_enabled_status('<option selected value="2"><script>dw(Enable)</script></option>' in html)
settings.ensure_valid()
return settings
