some improvements while network was down.....

README.md

@@ -1,10 +1,25 @@
 # e3372-py
 
+E3372 SMS handler written in Python. Uses the hilink web interface API. Allows
+you to do something when SMS arrives.
+
 ## Requirements
 
-* lxml (python3-lxml)
+* lxml (`apt install python3-lxml` or something like it)
 * see `requirements.txt`
 
+## Usage
+
+You need at least Python 3.6 or so.
+
+See `main.py` and adjust the `sms_handler` function to your needs.
+
+The script should be launched periodically by cron. This line in crontab would
+launch the script every 10 minutes:
+```cron
+*/10 * * * * python3 /path/to/e3372-py/main.py --trusted-phone 79001234567
+```
+
 ## License
 
 BSD-2c

e3372.py

@@ -72,7 +72,7 @@ class WebAPI:
             sms = SMS(
                 index=int(message.find('Index').get_text()),
                 phone=message.find('Phone').get_text(),
-                content=message.find('Content').get_text(),
+                text=message.find('Content').get_text(),
                 date=message.find('Date').get_text()
             )
             sms_list.append(sms)
@@ -156,9 +156,11 @@ class SMSHandler:
 
     def process(self, handler: Callable):
         state = self.read_state()
-        messages = self.api.get_sms(10, 1)
         max_ts = state['last_timestamp']
-        for sms in messages:
+
+        # loop backwards
+        messages = self.api.get_sms(10, 1)
+        for sms in reversed(messages):
             ts = sms.timestamp()
             if state['last_timestamp'] > ts:
                 continue
@@ -167,7 +169,7 @@ class SMSHandler:
                 max_ts = ts
 
             try:
-                handler(sms)
+                handler(sms, self.api)
             except:
                 traceback.print_exc()
                 continue
@@ -178,10 +180,10 @@ class SMSHandler:
 
 
 class SMS:
-    def __init__(self, index=None, phone=None, content=None, date=None):
+    def __init__(self, index=None, phone=None, text=None, date=None):
         self.index = index
         self.phone = phone
-        self.content = content
+        self.text = text
         self.date = date
 
     def timestamp(self):

main.py

@@ -2,30 +2,62 @@ import pathlib
 import os
 
 from argparse import ArgumentParser
-from pprint import pprint
 from e3372 import WebAPI, SMSHandler, SMS
 
 
 config_dir = os.path.join(pathlib.Path.home(), '.e3372-sms-handler')
+trusted_phone = ''
 
 
-def sms_handler(sms: SMS):
+def sms_handler(sms: SMS, api: WebAPI):
+    global trusted_phone
+
     print(f'from: {sms.phone}')
-    print(f'text: {sms.content}')
+    print(f'text: {sms.text}')
+
+    if sms.phone == trusted_phone:
+        text = sms.text.lower().strip()
+        if text == 'you shall reboot':
+            api.reboot()
+
+        elif text == 'show me some status':
+            info = api.device_information()
+            signal = api.device_signal()
+            buf = []
+
+            for key, value in info.items():
+                if key in ('workmode', 'WanIPAddress'):
+                    buf.append(f'{key}={value}')
+
+            for key, value in signal.items():
+                if key in ('cell_id', 'rssi', 'rscp', 'ecio', 'mode'):
+                    buf.append(f'{key}={value}')
+
+            buf = ' '.join(buf)
+            if buf != '':
+                api.send_sms(phone=trusted_phone, content=buf)
 
 
 def main():
+    global trusted_phone
+
+    # parse arguments
     parser = ArgumentParser()
     parser.add_argument('--ip',
                         default='192.168.8.1',
                         help='Modem IP address')
-    parser.add_argument('--phone')
+    parser.add_argument('--trusted-phone',
-    parser.add_argument('--content')
+                        help='Trusted phone number')
     args = parser.parse_args()
 
+    # set global trusted_phone
+    trusted_phone = args.trusted_phone
+
+    # webapi client
     client = WebAPI(args.ip)
     client.auth()
 
+    # sms handler
     smshandler = SMSHandler(api=client, config_dir=config_dir)
     smshandler.process(sms_handler)