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+#!/usr/bin/python

+

+# courtsey ruler for editing script - 80 characters max line length

+#2345678901234567890123456789012345678901234567890123456789012345678901234567890

+

+import telnetlib

+

+_DEFAULT_HOST = '{your APRS-IS server hostname}'

+_DEFAULT_PORT = '{your APRS-IS message port}'

+_DEFAULT_SERVER = '{your APRS-IS server name}'

+

+class smsalert:

+

+    def __init__(self, callsign, passcode, host=_DEFAULT_HOST, \

+      port=_DEFAULT_PORT, server=_DEFAULT_SERVER, debug=False):

+        """

+        Initialize an instance of this class.

+        Parameters:

+          callsign - amateur radio callsign of user (must be verified)

+          passcode - passcode for verified callsign

+          host - domain name or IP address of APRS-IS server

+          port - port on which the APRS-IS server receives messages

+          server - APRS service name

+          debug - set equal to True for debug output

+        Returns: nothing

+        """

+        # Initialize class instance variables.

+        self.callsign = callsign

+        self.passcode = passcode

+        self.host = host

+        self.port = port

+        self.server = server

+        self.debug = debug

+    ## end def

+

+    def sendSMS(self, phone_number, text_message):

+        """

+        Sends an SMS text message to the provided phone number.

+        Parameters:

+          phone_number - phone number to which to send the text message

+          text_message - text message to be sent to the provided phone number

+        Returns: True if successful, False otherwise

+        """

+        # Establish network connection to APRS-IS server.

+        tn = telnetlib.Telnet(self.host, self.port)

+        tn.read_until('# aprsc 2.1.8-gf8824e8')

+

+        # Login and verify passcode accepted.

+        tn.write('user ' + self.callsign + ' pass ' + self.passcode + '\n')

+        response = tn.read_until(self.server)

+        if self.debug:

+            print('response: ' + response[2:])

+        if not response.find('verified'):

+            print('smsalert error: unverified user')

+            del tn

+            return False

+

+        # Format and send SMS message to SMS gateway.

+        cmd = '%s>%s::SMSGTE:@%s %s' % \

+          (self.callsign, self.server, phone_number, text_message)

+        if self.debug:

+            print('cmd: ' + cmd)

+        tn.write(cmd + '\n')

+        del tn

+        return True

+    ## end def

+## end class

+

+def test_smsalert():

+    # Initialize a telnet instance.  Default host, port, and server

+    # automatically defined if not included in function call.

+    sm = smsalert('{your callsign}', '{your passcode}', debug=True)

+

+    # Send a text message to a phone number.

+    sm.sendSMS('{your phone number}', 'Test message send from smsalert.py')

+## end def

+

+if __name__ == '__main__':

+    test_smsalert()