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safe search for json keys

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This commit is contained in:
DJ2LS 2023-02-02 22:41:35 +01:00
parent 2fc0c23087
commit 41293590cb
3 changed files with 46 additions and 22 deletions
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3
tnc/daemon.py
View file

@ -32,7 +32,6 @@ import ujson as json
import config
# signal handler for closing application
def signal_handler(sig, frame):
"""
@ -269,8 +268,6 @@ class DAEMON:
# safe data to config file
config.write_entire_config(data)
import os, sys
import sys

22
tnc/helpers.py
View file

@ -461,4 +461,24 @@ def snr_from_bytes(snr):
"""create int from snr byte"""
snr = int.from_bytes(snr, byteorder='big', signed=True)
snr = snr / 10
return snr
return snr
def safe_execute(default, exception, function, *args):
"""
https://stackoverflow.com/a/36671208
from json import loads
safe_execute("Oh no, explosions occurred!", TypeError, loads, None)
"""
try:
return function(*args)
except exception:
return default
def return_key_from_object(default, obj, key):
try:
return obj[key]
except KeyError:
return default

43
tnc/sock.py
View file

@ -764,10 +764,12 @@ def process_daemon_commands(data):
and not static.TNCSTARTED
):
try:
mycall = str(received_json["parameter"][0]["mycall"])
mygrid = str(received_json["parameter"][0]["mygrid"])
rx_audio = str(received_json["parameter"][0]["rx_audio"])
tx_audio = str(received_json["parameter"][0]["tx_audio"])
startparam = received_json["parameter"][0]
mycall = str(helpers.return_key_from_object("AA0AA", startparam,"mycall"))
mygrid = str(helpers.return_key_from_object("JN12ab", startparam,"mygrid"))
rx_audio = str(helpers.return_key_from_object("0", startparam,"rx_audio"))
tx_audio = str(helpers.return_key_from_object("0", startparam,"tx_audio"))
devicename = str(received_json["parameter"][0]["devicename"])
deviceport = str(received_json["parameter"][0]["deviceport"])
serialspeed = str(received_json["parameter"][0]["serialspeed"])
@ -779,20 +781,18 @@ def process_daemon_commands(data):
radiocontrol = str(received_json["parameter"][0]["radiocontrol"])
rigctld_ip = str(received_json["parameter"][0]["rigctld_ip"])
rigctld_port = str(received_json["parameter"][0]["rigctld_port"])
enable_scatter = str(received_json["parameter"][0]["enable_scatter"])
enable_fft = str(received_json["parameter"][0]["enable_fft"])
enable_fsk = str(received_json["parameter"][0]["enable_fsk"])
low_bandwidth_mode = str(
received_json["parameter"][0]["low_bandwidth_mode"]
)
tuning_range_fmin = str(received_json["parameter"][0]["tuning_range_fmin"])
tuning_range_fmax = str(received_json["parameter"][0]["tuning_range_fmax"])
tx_audio_level = str(received_json["parameter"][0]["tx_audio_level"])
respond_to_cq = str(received_json["parameter"][0]["respond_to_cq"])
rx_buffer_size = str(received_json["parameter"][0]["rx_buffer_size"])
enable_explorer = str(received_json["parameter"][0]["enable_explorer"])
enable_auto_tune = str(received_json["parameter"][0]["enable_auto_tune"])
enable_scatter = str(helpers.return_key_from_object("True", startparam,"enable_scatter"))
enable_fft = str(helpers.return_key_from_object("True", startparam,"enable_fft"))
enable_fsk = str(helpers.return_key_from_object("False", startparam,"enable_fsk"))
low_bandwidth_mode = str(helpers.return_key_from_object("False", startparam,"low_bandwidth_mode"))
tuning_range_fmin = str(helpers.return_key_from_object("-50", startparam,"tuning_range_fmin"))
tuning_range_fmax = str(helpers.return_key_from_object("50", startparam,"tuning_range_fmax"))
tx_audio_level = str(helpers.return_key_from_object("100", startparam,"tx_audio_level"))
respond_to_cq = str(helpers.return_key_from_object("False", startparam,"respond_to_cq"))
rx_buffer_size = str(helpers.return_key_from_object("16", startparam,"rx_buffer_size"))
enable_explorer = str(helpers.return_key_from_object("False", startparam,"enable_explorer"))
enable_auto_tune = str(helpers.return_key_from_object("False", startparam,"enable_auto_tune"))
enable_stats = str(helpers.return_key_from_object("False", startparam,"enable_stats"))
try:
# convert ssid list to python list
ssid_list = str(received_json["parameter"][0]["ssid_list"])
@ -840,6 +840,7 @@ def process_daemon_commands(data):
enable_explorer,
ssid_list,
enable_auto_tune,
enable_stats
]
)
command_response("start_tnc", True)
@ -936,3 +937,9 @@ def command_response(command, status):
data_out = json.dumps(jsondata)
SOCKET_QUEUE.put(data_out)
def try_except(string):
try:
return string
except Exception:
return False