[cassioli]

How can I detect if an internet connection is currently active on my phone?
And, once I see it is NOT active, how can I start it?

[gaba88]

Originally Posted by cassioli

How can I detect if an internet connection is currently active on my phone?
And, once I see it is NOT active, how can I start it?

hi cassioli
yes i think you can start a GPRS connection please have a look at this new wiki article.

Hope this helps
Enjoy Pythoning
Gaba88

[cassioli]

thanks, cool link!

[gaba88]

Originally Posted by cassioli

thanks, cool link!

Hi cassioli
you are welcome the article was created by me yesterday only. I feel happy that it was helpful to you.

Enjoy Pythoning
Gaba88

[cassioli]

I did several tests, but I still cannot understand why&when my device raises the error "0, getaddrinfo failed" when I attempt to upload a file to a server:

# Copyright (c) 2007 Jurgen Scheible
# This script allows setting a default Access Point for connecting to the internet 
# which omits the task of always manually selecting an Access Point each time when you 
# open a Python script that connects to the internet.
# Note: you need at least PyS60 v.1.3.17  

import appuifw,socket,urllib, e32

def unset_accesspoint():
    f = open('e:\\apid.txt','w')
    f.write(repr(None))
    f.close()
    appuifw.note(u"Default access point is unset ", "info")


def set_accesspoint():
    apid = socket.select_access_point()
    if appuifw.query(u"Set as default access point","query") == True:
        f = open('e:\\apid.txt','w')
        f.write(repr(apid))
        f.close()
        appuifw.note(u"Saved default access point ", "info")
        apo = socket.access_point(apid)
        socket.set_default_access_point(apo)

def download():
    #---------------------- copy from here ---------------------------------------
    try:
        f=open('e:\\apid.txt','rb')
        setting = f.read()
        apid = eval(setting)
        f.close()
        if not apid == None :
            apo = socket.access_point(apid)
            socket.set_default_access_point(apo)
        else:
            set_accesspoint()
    except:
        set_accesspoint()
    #------------------------- copy till here --------------------------------------
    # and put it before the line of code in your script that invokes a connection to the internet
    # like here with urllib.urlretrieve(url, tempfile)

    # your own code here
    print "Invio file..."
    try:
      sourcefile = 'e:\\fav.kml'
      destfile = 'prova.txt'
      print "Accedo a server FTP..."
      ftp = FTP('ftp.altervista.org','user','pass') # connect to host
      print "Cambio cartella..."
      ftp.cwd('prove') # change directory where to store the file
      print "Leggo file..."
      F=open(sourcefile,'r')
      print "Invio..."
      ftp.storbinary('STOR ' + destfile,F,1024) # store the file
      print "Inviato. Chiudo FTP..."
      ftp.quit()
      print "Chiudo file..."
      F.close()    
      print "Finito!"
    except Exception, e:
      print "Impossibile inviare file:"
      print str(e)
  
#    url = "http://www.google.it"
#    tempfile = 'e:\\Videos\\video.3gp'
#    urllib.urlretrieve(url, tempfile)
#    appuifw.note(u"Video downloaded" , "info")


def quit():
    app_lock.signal()
    appuifw.app.set_exit()

appuifw.app.menu = [(u"unset ap",unset_accesspoint),(u"download",download)]
#appuifw.app.exit_key_handler = quit
app_lock = e32.Ao_lock()
app_lock.wait()

Only one time it worked, maybe when I manually selected the access point. I need an error-proof method to start a connection and to upload a file, can anybody help?!?

[croozeus]

Originally Posted by cassioli

I did several tests, but I still cannot understand why&when my device raises the error "0, getaddrinfo failed" when I attempt to upload a file to a server:

Do you use the interpreter or PED to run the script ?

The "0, getaddrinfo failed" occurs to me when using PED but the script runs well with the interpreter.

Best Regards,
Croozeus

[cassioli]

Originally Posted by croozeus

Do you use the interpreter or PED to run the script ?

The "0, getaddrinfo failed" occurs to me when using PED but the script runs well with the interpreter.

Best Regards,
Croozeus

I tried with PUTOOLS PC-shell and with a script run by phone-shell.

[gaba88]

hi cassioli
the error you are getting is a connection error may be there be a somekind of network problem. I used to get these kind of error due to bad network connection.

[croozeus]

Originally Posted by cassioli

I tried with PUTOOLS PC-shell and with a script run by phone-shell.

Can you upload the file if you ignore the code for default access point ?

Best Regards,
Croozeus

[cassioli]

Originally Posted by croozeus

Can you upload the file if you ignore the code for default access point ?

Best Regards,
Croozeus

I just finished doing other tests:
- the only way to be able to get upload working is by manually selecting the access point
- access_point().start() and .stop() do not affect at all actually active connections on phone: if no connections are active, .start() does not start a connection; if a connection is active, .stop() does not stop it.
- if I try uploading a file without starting a connection before using .start(), I'm asked to select the connection to use, and once I choose it, the upload properly work (i.e. statement ftp = ftplib.FTP('ftp.altervista.org') does not raise any error )

[cassioli]

Further tests with PUTOOLS (PC-shell):
f=ftplib.FTP('jumpjack.altervista.org') without active connections results in connectin selection dialog to appear; choosing CANCEL I get gaierror: (4, 'getaddrinfo failed')

f=ftplib.FTP('jumpjack.altervista.org') without active connections results in connection-selection-dialog to appear; choosing WRONG connection (MMS rather than web) results in SUCCESSFULL (???) connection (message received from server)

f=ftplib.FTP('jumpjack.altervista.org') without active connections results in connection-selection-dialog to appear; choosing INTERNET connection obviously results in successfull connection.

f=ftplib.FTP('jumpjack.altervista.org') with activer connection generated by web browser results in connection-selection-dialog to appear (???). "CANCEL" results in error 4 (see above); selecting same APN used by browser results in:
Traceback (most recent call last):
File "<input>", line 1, in ?
File "C:\system\libs\ftplib.py", line 79, in __init__
self.connect(host)
File "C:\system\libs\ftplib.py", line 89, in connect
self.sock.connect((self.host, self.port))
File "E:\system\libs\socket.py", line 316, in connect
return self._sock.connect((gethostbyname(addr[0]), addr[1]), cb)
error: (22, 'Invalid argument')

What a mess...

[willy_backhaus]

Hi cassioli,

is there any possibility to detect an active internet connection?

Cheers,
Willy

Originally Posted by cassioli

How can I detect if an internet connection is currently active on my phone?
And, once I see it is NOT active, how can I start it?

[cassioli]

Originally Posted by willy_backhaus

Hi cassioli,

is there any possibility to detect an active internet connection?

Cheers,
Willy

who knows?