User:Nbc/W32g

2010-04-09T20:32:16Z

169.232.246.21: /* Script */

= What is it =

w32g is a dbus script to toggle 2g/3g when connected/disconnected to wifi.

If there's a call, it will delay the toggling.

= Configuration =

The configuration documentation is at the beginning w32g.conf. You can copy it to /home/user/.w32g.conf and modify it :

[w32g]

### the comment reflect the default configuration
### true is true (case insensitive), everything else is false

### the command used to test the wifi connection before downgrading to 2g
### if you don't want to do test just delete after =
# connection_test = sudo /bin/ping -c 1 www.google.com

### notification message when going to 3g
# message_on_idle = 3G cellular mode set
### notification message when going to 2g
# message_on_connected = 2G (GSM) cellular mode set

### shall we go back to 3g when wlan disconnect ?
#### if you want to have false just delete after =
# change_on_idle = true
### shall we go back to dual or 3g ?
# change_to_dual = true

### if wait_on_call is a integer greater than 0, the program will wait
### all this time to toggle to 2g/3g. After this time it will exit
### without toggling.
### if wait_on_call is 0 or lesser, w32g will exit without toggling
# wait_on_call = 90

### if you want go to 2g only when connected to some wlan you can add their wlan id here
### you can find the wlan id using the command
### gconftool-2 -R /system/osso/connectivity/IAP
### For example :
### wifi = 91f493fb-7c89-4fc6-ac2c-b822923dde45 9ee5dd55-9a32-4ee9-9131-c464ad31d907
# wifi =

= Script =

And you must copy the program to /home/user/bin/w32g and follow instruction below :

#!/usr/bin/python

# You need to install dbus-scripts (BE CAREFUL, it's a devel package)
#
# as root you need to create a file /etc/sudoers.d/w32g
# with this line :
# user ALL = NOPASSWD: /bin/ping
# and run the command update-sudoers because only root can use ping
#
# always as root and you need to create another file
# /etc/dbus-scripts/w32g with the following line :
#
# /home/user/bin/w32g * * com.nokia.icd status_changed * WLAN_INFRA *
#
# and copy this script in /home/user/bin/w32g

import sys
import os
import ConfigParser
import re
import commands
import time

debug = False

conf_file = '/home/user/.w32g.conf'

config = { 'message_on_idle': '3G cellular mode set',
'message_on_connected': '2G (GSM) cellular mode set',
'connection_test': 'sudo /bin/ping -c 1 www.google.com',
'change_on_idle': 'true',
'change_to_dual': 'true',
'wait_on_call': 10,
'wifi': ''
}

config_parser = ConfigParser.SafeConfigParser()

try:
config_parser.read(conf_file)
for item in config_parser.items('w32g'):
config[ item[0] ] = item[1]
except ConfigParser.NoSectionError:
pass

def to_bool(string):
if re.search('true', string, re.IGNORECASE):
return True

config['change_on_idle'] = to_bool(config['change_on_idle'])
config['change_to_dual'] = to_bool(config['change_to_dual'])
config['wait_on_call'] = int(config['wait_on_call'])

wifi_id,state = sys.argv[5],sys.argv[7]

# if we are not on the good wifi network we do nothing and exit
if config['wifi'] and not re.search(wifi_id, config['wifi'], re.IGNORECASE):
if debug: print "not the good wifi network, exit"
sys.exit(0)

dbus_wifi = "dbus-send --system --type=method_call --print-reply --dest=com.nokia.phone.net /com/nokia/phone/net Phone.Net.set_selected_radio_access_technology";

dbus_notif = "dbus-send --system --type=method_call --print-reply --dest=org.freedesktop.Notifications /org/freedesktop/Notifications org.freedesktop.Notifications.SystemNoteInfoprint";

dbus_test_call = "dbus-send --system --dest=com.nokia.csd.Call --print-reply=literal /com/nokia/csd/call/1 com.nokia.csd.Call.Instance.GetStatus"

def is_on_call():
output = commands.getoutput(dbus_test_call)
return "uint32 0" in output

def wait_or_exit_on_call():
if debug: print "in wait or exit on call"
choice = config['wait_on_call']
if choice > 0:
end = time.time() + choice
while end > time.time():
if is_on_call(): return
if debug: print "wait"
time.sleep(1)
sys.exit()
else:
sys.exit()

if state == 'CONNECTED':
if debug: print "CONNECTED STATE"
# we verified that the connection works
if config['connection_test']:
ret = os.system(config['connection_test']);
else:
ret = 0

# we wait or exit if there's a call
wait_or_exit_on_call()

if ret == 0:
os.system(dbus_wifi + " byte:1");
os.system(dbus_notif + " string:'" + config['message_on_connected'] + "'")

elif state == 'IDLE' and config['change_on_idle']:
if debug: print "IDLE STATE"
dual = "2"
if config['change_to_dual']: dual = "0"
print dual

# we wait or exit if there's a call
wait_or_exit_on_call()

os.system(dbus_wifi + " byte:" + dual);
os.system(dbus_notif + " string:'" + config['message_on_idle'] + "'")

print state

if debug: print "end here"

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