I got myself a new router, an Ubiquiti EdgeRouter ER-X , and when I tried to apply my old methods from the WNR2000v5 I discovered that the web pages returned were full of javascript. I could not find any WAN values in the files.
And that was just as well, the edge router features a full OS, with python pre installed! I set it up with eth4 as the WAN port.
The only caveat was the
show interfaces ethernet eth4 brief
did not work in a script. The command
/opt/vyatta/bin/vyatta-op-cmd-wrapper show interfaces ethernet eth4 brief
has to be used for it to work.
So after setting it up to run via crontab with the command
sudo -e crontabthe script were up and running.
The working python script:
#!/usr/bin/python
import re, os, ftplib, pickle, StringIO
def touch(fname, times=None):
with open(fname, 'a'):
os.utime(fname, times)
cmd_path = '/opt/vyatta/bin/vyatta-op-cmd-wrapper'
cmd_res = os.popen(cmd_path+ ' show interfaces ethernet eth4 brief')
data = cmd_res.read()
cmd_res.close()
# Edgeos show interface command returns
# eth4 xxx.xxx.xxx.xxx
p = re.compile('eth4(\s*)(\d*).(\d*).(\d*).(\d*)')
m = p.search(data)
#m.groups()[0] is white space
if (m and len(m.groups()) == 5):
current_ip = (m.groups()[1], m.groups()[2], m.groups()[3], m.groups()[4])
try:
last_ip = pickle.load(open('/home/user/myip/lastip', "rb" ))
except IOError:
last_ip = (1,2,3,4)
if current_ip != last_ip:
pickle.dump(current_ip,open('/home/user/myip/lastip', "wb" ))
data ='<html><head><title>My IP</title></head><b>My IP:\
%d//%d//%d//%d</b></font></p></body></html>\
'%(int(m.groups()[1]),int(m.groups()[2]),int(m.groups()[3]),int(m.groups()[4]))
output = StringIO.StringIO(data)
ftp = ftplib.FTP('ftp.server.org', 'username','password')
ftp.cwd('pub')
ftp.storlines('STOR index.html', output)
ftp.close()
else:
touch('/home/user/myip/lastip')
import re, os, ftplib, pickle, StringIO
def touch(fname, times=None):
with open(fname, 'a'):
os.utime(fname, times)
cmd_path = '/opt/vyatta/bin/vyatta-op-cmd-wrapper'
cmd_res = os.popen(cmd_path+ ' show interfaces ethernet eth4 brief')
data = cmd_res.read()
cmd_res.close()
# Edgeos show interface command returns
# eth4 xxx.xxx.xxx.xxx
p = re.compile('eth4(\s*)(\d*).(\d*).(\d*).(\d*)')
m = p.search(data)
#m.groups()[0] is white space
if (m and len(m.groups()) == 5):
current_ip = (m.groups()[1], m.groups()[2], m.groups()[3], m.groups()[4])
try:
last_ip = pickle.load(open('/home/user/myip/lastip', "rb" ))
except IOError:
last_ip = (1,2,3,4)
if current_ip != last_ip:
pickle.dump(current_ip,open('/home/user/myip/lastip', "wb" ))
data ='<html><head><title>My IP</title></head><b>My IP:\
%d//%d//%d//%d</b></font></p></body></html>\
'%(int(m.groups()[1]),int(m.groups()[2]),int(m.groups()[3]),int(m.groups()[4]))
output = StringIO.StringIO(data)
ftp = ftplib.FTP('ftp.server.org', 'username','password')
ftp.cwd('pub')
ftp.storlines('STOR index.html', output)
ftp.close()
else:
touch('/home/user/myip/lastip')
