~lifeeth/sahana-eden/mobile

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from pygsm import GsmModem
import time
import sys
from gluon.sql import SQLDB
from gluon.sql import SQLTable
from gluon.sql import SQLField
from gluon.validators import IS_IN_SET
from gluon.validators import IS_IN_DB
import urllib2

Field=SQLField
echo = 1
debug = 0
posturl = ""
sahanapydatabase = ""
db = ""
branch = "py"
headers = {"Content-type":"text/xml","Accept": "text/plain"}
migrate = False
def T(string):
    return string
# Following are copied from msg.py
# Reusable timestamp fields
timestamp = SQLTable(None, 'timestamp',
            Field('created_on', 'datetime'),
            Field('modified_on', 'datetime')
            )

# Reusable author fields
authorstamp = SQLTable(None, 'authorstamp',
            Field('created_by'),
            Field('modified_by')
            )

# Reusable UUID field (needed as part of database synchronization)
import uuid
uuidstamp = SQLTable(None, 'uuidstamp',
            Field('uuid', length=64,
                          notnull=True,
                          unique=True,
                          readable=False,
                          writable=False,
                          default=uuid.uuid4()))

# Reusable Deletion status field (needed as part of database synchronization)
# Q: Will this be moved to a separate table? (Simpler for module writers but a performance penalty)
deletion_status = SQLTable(None, 'deletion_status',
            Field('deleted', 'boolean',
                          readable=False,
                          writable=False,
                          default=False))


"""
Database for the SMS dump
"""
smsdb = SQLDB("sqlite://smsdump.db")

"""
Table definition for the SMS dump
"""
smsdb.define_table("store",
      SQLField("sender", "string", length=20),
      SQLField("fileno", "integer", length=20),
      SQLField("totalno", "integer", length=20),
      SQLField("partno", "integer", length=20),
      SQLField("message", "string", length=160),
     )
smsdb.commit()

def main (argv) :
    """ Init GsmModem and do the rest """
    try:
        port = argv[0]
        baudrate = argv[1]
        global debug
        debug = int(argv[2])
        global posturl
        posturl = argv[3]
        global sahanapydatabase
        sahanapydatabase = argv[4]
        global branch
        branch = argv[5]
    except IndexError:
        print argv
        print "Please give the appropriate parameters"
        exit()
    """
        Database for the SMS dump
    """
    global db
    db = SQLDB(sahanapydatabase)
    msg_group_type_opts = {
    1:'Email',
    2:'SMS',
    3:'Both'
    }
    opt_msg_group_type = SQLTable(None, 'opt_msg_group_type',
                    db.Field('group_type', 'integer', notnull=True,
                    requires = IS_IN_SET(msg_group_type_opts),
                    default = 1,
                    label = 'Type',
                    represent = lambda opt: opt and msg_group_type_opts[opt]))
    resource = 'sms_outbox'
    table = 'msg_' + resource
    db.define_table('msg_group', timestamp, uuidstamp, deletion_status,
                Field('name', notnull=True),
                opt_msg_group_type,
                Field('comments', length=256),
                migrate=migrate)
    group_id = SQLTable(None, 'group_id',
                Field('group_id', db.msg_group,
                requires = IS_IN_DB(db, 'msg_group.id', 'msg_group.name'),
                represent = lambda id: (id and [db(db.msg_group.id==id).select()[0].name] or ["None"])[0],
                label = T('Group'),
                comment = "None",
                ondelete = 'RESTRICT'
                ))
    db.define_table(table, timestamp, authorstamp, uuidstamp, deletion_status,
                #Field('phone_number', 'integer', notnull=True),
                group_id,
                Field('contents', length=700),  # length=140 omitted to handle multi-part SMS
                #Field('smsc', 'integer'),
                migrate=False)
    db.define_table('msg_sms_sent', timestamp, authorstamp, uuidstamp, deletion_status,
                #Field('phone_number', 'integer', notnull=True),
                group_id,
                Field('contents', length=700),  # length=140 omitted to handle multi-part SMS
                #Field('smsc', 'integer'),
                migrate=False)
    db.define_table('msg_sms_inbox', timestamp, uuidstamp, deletion_status,
                Field('phone_number', 'integer', notnull=True),
                Field('contents', length=700),  # length=140 omitted to handle multi-part SMS
                #Field('smsc', 'integer'),
                migrate=migrate)

    gsm = GsmModem(
        port=port,
        baudrate=int(baudrate))
    app = ProcessorApp(gsm)
#    app.command("AT+CNMI=1,1,0,0,0")
    app.serve_forever()


class ProcessorApp(object):
    def __init__(self, modem):
        self.modem = modem

    def command(self,msg,raise_error=False):
        self.modem.command(msg,raise_error)

    def serve_forever(self):
        """Block forever, polling the modem for new messages every
           two seconds. When a message is received, pass it on to
           the _incoming_ message for handling."""
        global db
        if debug:
            print "Waiting for messages:"
        boxdata = self.modem.query('AT+CMGD=?')
        if "error" in boxdata.lower():
            print "Error - phone not supported"
            exit()
        boxsize = int(boxdata.split("(")[1].split(")")[0].split("-")[1])
        if debug:
            print boxsize
        cleanup = True
        while True:

            msg = self.modem.next_message()

            if msg is not None:
                cleanup = True
                if debug:
                    print "Got Message: %r" % (msg.text)
                    print "From: %r " % (msg.sender)
                try:
                    data = msg.text
                    meta = data.split("$")[0]
                    data = data.lstrip(meta+"$")
                    file = meta.split("&")[0].split("=")[1]
                    part = meta.split("&")[1].split("=")[1].split(",")[0]
                    total = meta.split("&")[1].split("=")[1].split(",")[1]
                    smsdb.store.insert(sender=msg.sender,fileno=file,partno=part,totalno=total,message=data)
                    smsdb.commit()
                except:
                    """If message is not sent from the j2me client it appears
                    here"""
                    db.msg_sms_inbox.insert(phone_number=msg.sender,contents=msg.text)
                    db.commit()
                if debug > 4:
                    if msg.sender == "+919935648569":
                        msg.respond("Up and running captain")
            if cleanup:
                for i in range(boxsize): # For cleaning up the read messages.
                    try:
                        temp = self.modem.command('AT+CMGR=' + str(i+1)+',1')
                        if debug > 5:
                            print str(i+1) + ": "
                            print temp
                        if "REC READ" in temp[0]:
                            self.modem.query('AT+CMGD=' + str(i+1))
                            if debug > 3:
                               print "Deleted :" + str(i+1)
                    except:
                        pass
                cleanup = False
            # Check for parts in the smsdb - if done concatenate them and send
            # them over to sahanapy
            for row in smsdb().select(smsdb.store.ALL):
                rowdone=False
                rowmessage=""
                for i in range(row.totalno):
                    q=smsdb((smsdb.store.sender==row.sender) & (smsdb.store.fileno==row.fileno) & (smsdb.store.partno==i+1)).select(smsdb.store.message,distinct=True)
                    if q:
                        rowdone = True
                        for morerows in q:
                            rowmessage = rowmessage + morerows.message
                    else:
                        rowdone = False
                        continue
                if rowdone:
                    rowmessage = rowmessage.replace("@","@")
                    rowmessage = rowmessage.replace("#64;","@")
                    if debug > 1:
                        print rowmessage
                    try:
                        req = urllib2.Request(posturl,rowmessage,headers)
                        conn = urllib2.urlopen(req)
                        if debug > 4:
                            print conn.read()
                        smsdb(smsdb.store.fileno==row.fileno).delete()
                        conn.close()
                    except:
                        print "Error posting"
                    smsdb.commit()
            # no messages? wait a couple of seconds
            # (let's not blow up the modem), and retry
            time.sleep(2)



if __name__ == "__main__":
    """ This process is to be started as follows
    python SerialWorker.py /dev/ttyUSB0 115200 0
    http://127.0.0.1:8000/sahana/xforms/post databaselocation
    Where 0 is the debug level"""
    sys.exit(main(sys.argv[1:]))