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wlan-lanforge-scripts/py-json/LANforge/lfcli_base.py
Dipti 9a3e66dfa7 reformation of monitor loop - writes to disk
2021-02-05 16:55:01 -08:00

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#!env /usr/bin/python
import sys
import signal
import traceback
# Extend this class to use common set of debug and request features for your script
from pprint import pprint
import time
import random
import string
import datetime
import argparse
import LANforge.LFUtils
from LANforge.LFUtils import *
from LANforge import LFRequest
import LANforge.LFRequest
import csv
class LFCliBase:
SHOULD_RUN = 0 # indicates normal operation
SHOULD_QUIT = 1 # indicates to quit loops, close files, send SIGQUIT to threads and return
SHOULD_HALT = 2 # indicates to quit loops, send SIGABRT to threads and exit
# do not use `super(LFCLiBase,self).__init__(self, host, port, _debug)
# that is py2 era syntax and will force self into the host variable, making you
# very confused.
def __init__(self, _lfjson_host, _lfjson_port,
_debug=False,
_halt_on_error=False,
_exit_on_error=False,
_exit_on_fail=False,
_local_realm=None,
_proxy_str=None,
_capture_signal_list=[]):
self.fail_pref = "FAILED: "
self.pass_pref = "PASSED: "
self.lfclient_host = _lfjson_host
self.lfclient_port = _lfjson_port
self.debug = _debug
# if (_debug):
# print("LFCliBase._proxy_str: %s" % _proxy_str)
self.proxy = {}
self.adjust_proxy(_proxy_str)
if (_local_realm is not None):
self.local_realm = _local_realm
# if (_debug):
# print("LFCliBase._proxy_str: %s" % _proxy_str)
self.lfclient_url = "http://%s:%s" % (self.lfclient_host, self.lfclient_port)
self.test_results = []
self.halt_on_error = _halt_on_error
self.exit_on_error = _exit_on_error
self.exit_on_fail = _exit_on_fail
self.capture_signals = _capture_signal_list
# toggle using preexec_cli, preexec_method; the preexec_X parameters are useful
# when you desire the lfclient to check for existance of entities to run commands on,
# like when developing; you might toggle this with use_preexec = _debug
# Otherwise, preexec methods use more processing time because they add an extra CLI call
# into the queue, and inspect it -- typically nc_show_port
self.suppress_related_commands = None
self.finish = self.SHOULD_RUN
self.thread_map = {}
if len(_capture_signal_list) > 0:
for zignal in _capture_signal_list:
self.captured_signal(zignal, self.my_captured_signal)
#
def _finish(self):
"""
call this to indicate SIGQUIT
"""
self.finish = self.SHOULD_QUIT
def _halt(self):
"""
call this to indicate SIGABRT
"""
self.finish = self.SHOULD_HALT
def _should_finish(self):
"""
check this when in a run loop if SIGQUIT has been indicated
"""
if self.finish == self.SHOULD_RUN:
return False
if self.finish == self.SHOULD_QUIT:
return True
if self.finish == self.SHOULD_HALT:
return False
def _should_halt(self):
"""
check this when in a run loop if SIGABRT has been indicated
"""
if self.finish == self.SHOULD_RUN:
return False
if self.finish == self.SHOULD_QUIT:
return False
if self.finish == self.SHOULD_HALT:
return True
def track_thread(self, name, thread):
if self.thread_map is None:
self.thread_map = {}
self.thread_map[name] = thread
def get_thread(self, name):
if self.thread_map is None:
return None
if name in self.thread_map.keys():
return self.thread_map[name]
return None
def remove_thread(self, name):
if self.thread_map is None:
return None
if name not in self.thread_map.keys():
return None
thrud = self.thread_map[name]
del self.thread_map[name]
return thrud
def send_thread_signals(self, signum, fname):
if len(self.thread_map) < 1:
print("no threads to signal")
return
for (name, thread) in self.thread_map.items():
if self.debug:
print("sending signal %s to thread %s" % (signum, name))
# do a thing
def my_captured_signal(self, signum):
"""
Override me to process signals, otherwise superclass signal handler is called.
You may use _finish() or _halt() to indicate finishing soon or halting immediately.
:return: True if we processed this signal
"""
print("my_captured_signal should be overridden")
return False
def captured_signal(self, signum):
"""
Here is your opportunity to decide what to do on things like KeyboardInterrupt or other UNIX signals
Check that your subclass handled the signal or not. You may use _finish() or _halt() to indicate
finishing soon or halting immediately. Use signal.signal(signal.STOP) to enable this.
"""
if self.debug:
print("Captured signal %s" % signum)
if self.my_captured_signal(signum):
if self.debug:
print("subclass processed signal")
else:
if self.debug:
print("subclass ignored signal")
def clear_test_results(self):
self.test_results.clear()
def json_post(self, _req_url, _data, debug_=False, suppress_related_commands_=None, response_json_list_=None):
"""
send json to the LANforge client
:param _req_url: requested url
:param _data: json data to send
:param debug_: turn on debugging output
:param suppress_related_commands_: when False, override self.preexec; when True use
:param response_json_list_: array for json results in the response object, (alternative return method)
:return: http response object
"""
json_response = None
debug_ |= self.debug
try:
lf_r = LFRequest.LFRequest(url=self.lfclient_url,
uri=_req_url,
proxies_=self.proxy,
debug_=debug_,
die_on_error_=self.exit_on_error)
if suppress_related_commands_ is None:
if 'suppress_preexec_cli' in _data:
del _data['suppress_preexec_cli']
if 'suppress_preexec_method' in _data:
del _data['suppress_preexec_method']
if 'suppress_postexec_cli' in _data:
del _data['suppress_postexec_cli']
if 'suppress_postexec_method' in _data:
del _data['suppress_postexec_method']
elif suppress_related_commands_ == False:
_data['suppress_preexec_cli'] = False
_data['suppress_preexec_method'] = False
_data['suppress_postexec_cli'] = False
_data['suppress_postexec_method'] = False
elif self.suppress_related_commands or suppress_related_commands_:
_data['suppress_preexec_cli'] = False
_data['suppress_preexec_method'] = False
_data['suppress_postexec_cli'] = True
_data['suppress_postexec_method'] = True
lf_r.addPostData(_data)
if debug_:
LANforge.LFUtils.debug_printer.pprint(_data)
json_response = lf_r.json_post(show_error=debug_,
debug=debug_,
response_json_list_=response_json_list_,
die_on_error_=self.exit_on_error)
if debug_ and (response_json_list_ is not None):
pprint.pprint(response_json_list_)
except Exception as x:
if debug_ or self.halt_on_error or self.exit_on_error:
print("json_post posted to %s" % _req_url)
pprint.pprint(_data)
print("Exception %s:" % x)
traceback.print_exception(Exception, x, x.__traceback__, chain=True)
if self.halt_on_error or self.exit_on_error:
exit(1)
return json_response
def json_put(self, _req_url, _data, debug_=False, response_json_list_=None):
"""
Send a PUT request. This is presently used for data sent to /status-msg for
creating a new messaging session. It is not presently used for CLI scripting
so lacks suppress_x features.
:param _req_url: url to put
:param _data: data to place at URL
:param debug_: enable debug output
:param response_json_list_: array for json results in the response object, (alternative return method)
:return: http response object
"""
debug_ |= self.debug
json_response = None
try:
lf_r = LFRequest.LFRequest(url=self.lfclient_url,
uri=_req_url,
proxies_=self.proxy,
debug_=debug_,
die_on_error_=self.exit_on_error)
lf_r.addPostData(_data)
if debug_:
LANforge.LFUtils.debug_printer.pprint(_data)
json_response = lf_r.json_put(show_error=self.debug,
debug=debug_,
response_json_list_=response_json_list_,
die_on_error_=self.exit_on_error)
if debug_ and (response_json_list_ is not None):
pprint.pprint(response_json_list_)
except Exception as x:
if debug_ or self.halt_on_error or self.exit_on_error:
print("json_put submitted to %s" % _req_url)
pprint.pprint(_data)
print("Exception %s:" % x)
traceback.print_exception(Exception, x, x.__traceback__, chain=True)
if self.halt_on_error or self.exit_on_error:
exit(1)
return json_response
def json_get(self, _req_url, debug_=False):
debug_ |= self.debug
# if debug_:
# print("json_get: "+_req_url)
# print("json_get: proxies:")
# pprint.pprint(self.proxy)
json_response = None
# print("----- GET ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ")
try:
lf_r = LFRequest.LFRequest(url=self.lfclient_url,
uri=_req_url,
proxies_=self.proxy,
debug_=debug_,
die_on_error_=self.exit_on_error)
json_response = lf_r.get_as_json(debug_=debug_, die_on_error_=self.halt_on_error)
#debug_printer.pprint(json_response)
if (json_response is None) and debug_:
print("LFCliBase.json_get: no entity/response, probabily status 404")
return None
except ValueError as ve:
if debug_ or self.halt_on_error or self.exit_on_error:
print("jsonGet asked for " + _req_url)
print("Exception %s:" % ve)
traceback.print_exception(ValueError, ve, ve.__traceback__, chain=True)
if self.halt_on_error or self.exit_on_error:
sys.exit(1)
return json_response
def json_delete(self, _req_url, debug_=False):
debug_ |= self.debug
if debug_:
print("DELETE: "+_req_url)
json_response = None
try:
# print("----- DELETE ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ")
lf_r = LFRequest.LFRequest(url=self.lfclient_url,
uri=_req_url,
proxies_=self.proxy,
debug_=debug_,
die_on_error_=self.exit_on_error)
json_response = lf_r.json_delete(debug=debug_, die_on_error_=self.halt_on_error)
print(json_response)
#debug_printer.pprint(json_response)
if (json_response is None) and debug_:
print("LFCliBase.json_delete: no entity/response, probabily status 404")
return None
except ValueError as ve:
if debug_ or self.halt_on_error or self.exit_on_error:
print("json_delete asked for " + _req_url)
print("Exception %s:" % ve)
traceback.print_exception(ValueError, ve, ve.__traceback__, chain=True)
if self.halt_on_error or self.exit_on_error:
sys.exit(1)
# print("----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ")
return json_response
@staticmethod
def response_list_to_map(json_list, key, debug_=False):
reverse_map = {}
if (json_list is None) or (len(json_list) < 1):
if debug_:
print("response_list_to_map: no json_list provided")
raise ValueError("response_list_to_map: no json_list provided")
return reverse_map
json_interfaces = json_list
if key in json_list:
json_interfaces = json_list[key]
for record in json_interfaces:
if len(record.keys()) < 1:
continue
record_keys = record.keys()
k2 = ""
# we expect one key in record keys, but we can't expect [0] to be populated
json_entry = None
for k in record_keys:
k2 = k
json_entry = record[k]
# skip uninitialized port records
if k2.find("Unknown") >= 0:
continue
port_json = record[k2]
reverse_map[k2] = json_entry
return reverse_map
def error(self, exception):
# print("lfcli_base error: %s" % exception)
pprint.pprint(exception)
traceback.print_exception(Exception, exception, exception.__traceback__, chain=True)
if self.halt_on_error:
print("halting on error")
sys.exit(1)
# else:
# print("continuing...")
def check_connect(self):
if self.debug:
print("Checking for LANforge GUI connection: %s" % self.lfclient_url)
response = self.json_get("/", debug_=self.debug)
duration = 0
while (response is None) and (duration < 300):
print("LANforge GUI connection not found sleeping 5 seconds, tried: %s" % self.lfclient_url)
duration += 2
time.sleep(2)
response = self.json_get("", debug_=self.debug)
if duration >= 300:
print("Could not connect to LANforge GUI")
sys.exit(1)
#return ALL messages in list form
def get_result_list(self):
return self.test_results
#return ALL fail messages in list form
def get_failed_result_list(self):
fail_list = []
for result in self.test_results:
if not result.startswith("PASS"):
fail_list.append(result)
return fail_list
#return ALL pass messages in list form
def get_passed_result_list(self):
pass_list = []
for result in self.test_results:
if result.startswith("PASS"):
pass_list.append(result)
return pass_list
def get_pass_message(self):
pass_messages = self.get_passed_result_list()
return "\n".join(pass_messages)
def get_fail_message(self):
fail_messages = self.get_failed_result_list()
return "\n".join(fail_messages)
def get_all_message(self):
return "\n".join(self.test_results)
#determines if overall test passes via comparing passes vs. fails
def passes(self):
pass_counter = 0
fail_counter = 0
for result in self.test_results:
if result.startswith("PASS"):
pass_counter += 1
else:
fail_counter += 1
if (fail_counter == 0) and (pass_counter > 0):
return True
return False
#EXIT script with a fail
def exit_fail(self,message="%d out of %d tests failed. Exiting script with script failure."):
total_len=len(self.get_result_list())
fail_len=len(self.get_failed_result_list())
print(message %(fail_len,total_len))
sys.exit(1)
# use this inside the class to log a failure result and print it if wished
def _fail(self, message, print_=False):
self.test_results.append(self.fail_pref + message)
if print_ or self.exit_on_fail:
print(self.fail_pref + message)
if self.exit_on_fail:
sys.exit(1)
#EXIT script with a success
def exit_success(self,message="%d out of %d tests passed successfully. Exiting script with script success."):
num_total=len(self.get_result_list())
num_passing=len(self.get_passed_result_list())
print(message %(num_passing,num_total))
sys.exit(0)
# use this inside the class to log a pass result and print if wished.
def _pass(self, message, print_=False):
self.test_results.append(self.pass_pref + message)
if print_:
print(self.pass_pref + message)
def adjust_proxy(self, proxy_str):
# if self.debug:
# print("lfclibase.adjust_proxy: %s" % proxy_str)
if (proxy_str is None) or (proxy_str == ""):
return
if self.proxy is None:
self.proxy = {}
if proxy_str.find("http:") > -1:
self.proxy["http"] = proxy_str
if proxy_str.find("https:") > -1:
self.proxy["https"] = proxy_str
# if self.debug:
# print("lfclibase::self.proxy: ")
# pprint.pprint(self.proxy)
# This style of Action subclass for argparse can't do much unless we incorporate
# our argparse as a member of LFCliBase. Then we can do something like automatically
# parse our proxy string without using _init_ arguments
# class ProxyAction(argparse.Action, zelf):
# def __init__(self, outter_):
# pass
# def __call__(self, parser, namespace, values, option_string=None):
# zelf.adjust_proxy(values)
@staticmethod
def create_bare_argparse(prog=None,
formatter_class=argparse.RawTextHelpFormatter,
epilog=None,
description=None):
if (prog is not None) or (formatter_class is not None) or (epilog is not None) or (description is not None):
parser = argparse.ArgumentParser(prog=prog,
formatter_class=formatter_class,
allow_abbrev=True,
epilog=epilog,
description=description)
else:
parser = argparse.ArgumentParser()
optional = parser.add_argument_group('optional arguments')
required = parser.add_argument_group('required arguments')
optional.add_argument('--mgr', help='hostname for where LANforge GUI is running', default='localhost')
optional.add_argument('--mgr_port', help='port LANforge GUI HTTP service is running on', default=8080)
optional.add_argument('--debug', '-d', help='Enable debugging', default=False, action="store_true")
optional.add_argument('--proxy', nargs='?', default=None, # action=ProxyAction,
help='Connection proxy like http://proxy.localnet:80 or https://user:pass@proxy.localnet:3128')
return parser
# Create argparse with radio, securiy, ssid and passwd required
# TODO: show example of how to add required or optional arguments from calling class
@staticmethod
def create_basic_argparse(prog=None,
formatter_class=None,
epilog=None,
description=None):
if (prog is not None) or (formatter_class is not None) or (epilog is not None) or (description is not None):
parser = argparse.ArgumentParser(prog=prog,
formatter_class=formatter_class,
epilog=epilog,
description=description)
else:
parser = argparse.ArgumentParser()
optional = parser.add_argument_group('optional arguments')
required = parser.add_argument_group('required arguments')
#Optional Args
optional.add_argument('--mgr', help='hostname for where LANforge GUI is running', default='localhost')
optional.add_argument('--mgr_port', help='port LANforge GUI HTTP service is running on', default=8080)
optional.add_argument('-u', '--upstream_port',
help='non-station port that generates traffic: <resource>.<port>, e.g: 1.eth1',
default='1.eth1')
optional.add_argument('--num_stations', help='Number of stations to create', default=0)
optional.add_argument('--test_id', help='Test ID (intended to use for ws events)', default="webconsole")
optional.add_argument('--debug', help='Enable debugging', default=False, action="store_true")
optional.add_argument('--proxy', nargs='?', default=None,
help='Connection proxy like http://proxy.localnet:80 or https://user:pass@proxy.localnet:3128')
#Required Args
required.add_argument('--radio', help='radio EID, e.g: 1.wiphy2')
required.add_argument('--security', help='WiFi Security protocol: < open | wep | wpa | wpa2 | wpa3 >', default="open")
required.add_argument('--ssid', help='WiFi SSID for script objects to associate to')
required.add_argument('--passwd', '--password' ,'--key', help='WiFi passphrase/password/key', default="[BLANK]")
return parser
# use this function to add an event You can see these events when watching websocket_client at 8081 port
def add_event(self,
message=None,
event_id="new",
name="custom",
priority=1,
debug_=False):
data = {
"event_id": event_id,
"details": message,
"priority": priority,
"name": name
}
self.json_post("/cli-json/add_event", data, debug_=debug_)
def read_file(self,
filename):
#Convert file contents to a list
filename = open(filename, 'r')
return [line.split(',') for line in filename.readlines()]
def random_chars(self,
size,
chars=None):
#Create random characters made of letters
if chars is None:
chars = string.ascii_letters
return ''.join(random.choice(chars) for x in range(size))
def get_milliseconds(self,
timestamp):
return (timestamp - datetime.datetime(1970,1,1)).total_seconds()*1000
def replace_special_char(self,
str):
return str.replace('+', ' ').replace('_', ' ')
Help_Mode = """Station WiFi modes: use the number value below:
auto : 0,
a : 1,
b : 2,
g : 3,
abg : 4,
abgn : 5,
bgn : 6,
bg : 7,
abgnAC : 8,
anAC : 9,
an : 10,
bgnAC : 11,
abgnAX : 12,
bgnAX : 13
"""
def write_to_csv_file(self,new_data_list=None, csvwriter=None,debug=False):
print(new_data_list)
if type(new_data_list) is not list:
raise ValueError("Data type passed into CSV to write is not a list. Exiting script.")
exit(1)
if debug:
print("Writing data: "+ new_data_list)
for data_value in new_data_list:
if isinstance(data_value,datetime.datetime):
csvwriter.write("\n")
csvwriter.write(data_value)
exit(1)
#================ Pandas Dataframe Functions ======================================
def df_to_file(dataframe, file_name, file_type):
pass
def file_to_df(file_type, file_name):
pass
def append_df_to_file(dataframe, file_name):
pass
def csv_to_other_format(csv, format):
pass
# ~class
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