First commit

config_reader.py

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+'''
+# A basic APRS iGate and APRS weather station with additional (optional) PE1RXF telemetry support
+#
+# This program reads the registers of the PE1RXF weather station via ModBus RTU and sends it as
+# an APRS WX report over APRS. Additionally, it sends beacons and forwards received APRS messages
+# to the APRS-IS network. All configurable via a YAML file called pe1rxf_aprs.yml.
+#
+# This program also has a PE1RXF APRS telemetry to MQTT bridge, which is configurable via pe1rxf_telemetry.yml
+#
+# Copyright (C) 2023, 2024 M.T. Konstapel https://meezenest.nl/mees
+#
+# This file is part of weather_station
+#
+#    weather_station is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    weather_station is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with weather_station. If not, see <https://www.gnu.org/licenses/>.
+'''
+
+import yaml
+from yaml.loader import SafeLoader
+
+class config_reader:
+
+    # initiate class: define name configuration files
+    def __init__(self, main_config_file, telemetry_config_file):
+        self.config_file = main_config_file
+        self.telemetry_file = telemetry_config_file
+        self.modbus_settings = []
+        self.aprsis_settings = []
+        self.weather_settings = []
+        self.beacon_settings = []
+        self.telemetry_settings = []
+
+    def read_settings(self):
+
+        if self.read_config_file() == 0:
+            return 0
+
+        if self.read_telemetry_file() == 0:
+            return 0
+
+        if self.test_global_settings() == 0:
+            return 0
+
+        if self.test_modbus_settings() == 0:
+            return 0
+
+        if self.test_aprsis_settings() == 0:
+            return 0
+
+        if self.test_weather_settings() == 0:
+            return 0
+
+        if self.test_beacon_settings() == 0:
+            return 0
+
+        if self.test_telemetry_settings() == 0:
+            return 0
+        return 1
+
+
+    def read_config_file (self):
+        try:
+            with open(self.config_file) as f:
+                self.config_file_settings = yaml.load(f, Loader=SafeLoader)
+        except:
+            print ("Configuration file ./" + self.config_file + " not found or syntax error in file.")
+            return 0
+        else:
+            return 1
+
+    def read_telemetry_file (self):
+        try:
+            with open(self.telemetry_file) as f:
+                self.telemetry_settings = yaml.load(f, Loader=SafeLoader)
+        except:
+            print ("Telemetry configuration file ./" + self.telemetry_file + " not found or syntax error in file.")
+            return 0
+        else:
+            return 1
+
+
+    # Test if all settings are pressebt
+    def test_global_settings(self):
+        # Test is all expected settings are present
+        try:
+            tmp = self.config_file_settings['global']['log-rf']
+        except:
+            print ("Error in the global section of the configuration file.")
+            return 0
+        else:
+            return 1
+
+    # Test if all settings are pressebt
+    def test_modbus_settings(self):
+        # Test is all expected settings are present
+        try:
+            tmp = self.config_file_settings['modbus']['port']
+            tmp = self.config_file_settings['modbus']['address']
+        except:
+            print ("Error in the modbus section of the configuration file.")
+            return 0
+        else:
+            return 1
+
+    def test_aprsis_settings(self):
+        try:
+            tmp = self.config_file_settings['aprsis']['call']
+            tmp = self.config_file_settings['aprsis']['passcode']
+            tmp = self.config_file_settings['aprsis']['server']
+            tmp = self.config_file_settings['aprsis']['port']
+            tmp = self.config_file_settings['aprsis']['filter']
+        except:
+            print ("Error in the aprsis section of the configuration file.")
+            return 0
+        else:
+            return 1
+
+    def test_weather_settings(self):
+        for entry in self.config_file_settings['weather']:
+            try:
+                tmp = entry['port']
+                tmp = entry['call']
+                tmp = entry['destination']
+                tmp = entry['digi_path']
+                tmp = entry['position']
+                tmp = entry['interval']
+            except:
+                print ("Error in the weather section of the configuration file.")
+                return 0
+        else:
+            return 1
+
+    def test_beacon_settings(self):
+        for entry in self.config_file_settings['beacon']:
+            try:
+                tmp = entry['port']
+                tmp = entry['call']
+                tmp = entry['destination']
+                tmp = entry['digi_path']
+                tmp = entry['position']
+                tmp = entry['interval']
+                tmp = entry['message']
+            except:
+                print ("Error in the beacon section of the configuration file.")
+                return 0
+        else:
+            return 1
+
+    def test_telemetry_settings(self):
+        return 1