def help(self):
"""all the available commands and how to use them
use : help"""
print_command("Available commands :")
for command in self.commands:
print_command("- {} : {}".format(command,
self.commands[command].__doc__))
def display_websites(self):
"""Displays all the websites checked by the program
use : display"""
self.lock.acquire()
for name in self.websites:
print_command(str(self.websites[name]))
self.lock.release()
def change_url(self, name, url):
"""change the url of the website
use : change_url name new_url"""
try:
self.websites[name].change_url(url)
except KeyError:
print_command("The website {} doesn't exist".format(name))
def change_check_interval(self, name, check_interval):
"""change the period between two checks
use : change_check_interval name new_check_interval"""
try:
self.websites[name].change_check_interval(int(check_interval))
except KeyError:
print_command("The website {} doesn't exist".format(name))
def remove_website(self, name):
"""remove a website from the list of websites to check.
use : remove name"""
self.lock.acquire()
if name in self.websites:
del self.websites[name]
else:
print_command("Website {} doesn't exist.".format(name))
self.lock.release()
def add_website(self, name, url, check_interval):
"""add a website to the list of websites to check.
use : add name url check_interval"""
self.lock.acquire()
if name in self.websites:
print_command("Website {} already exists.".format(name))
else:
self.websites[name] = website.Website(
name, url, int(check_interval), self.config)
self.lock.release()
def change_url(self, url):
"""change the url of the website"""
self.wrong_url = False
self.url = url
self.responses = []
self.available = True
if not self.check():
print_command(
"Impossible to reach Website, check the URL and your internet connection"
)
def execute_command(self, command):
"""execute the command if it is
a correct command"""
L = command.split(" ")
if len(L) == 0 or L[0] == "help":
self.help()
elif L[0] in self.commands:
try:
self.commands[L[0]](self.websites, *L[1:])
except TypeError:
print_command("Invalid use of command")
else:
print_command("Command {} does not exist".format(L[0]))
def load_config(self):
"""loads the configuration file that indicates in what case
a website is considered down
by default, only 200 response code means the website is ok"""
self.config = [200]
try:
with open(self.config_file, "r") as f:
f.readline()
self.config = [int(x) for x in f.readline().split(",")]
except FileNotFoundError:
print_command("Configuration file not found, using default configuration")
except ValueError:
print_command("Configuration file incorrect, using default configuration")
def __init__(self, name, url, check_interval, ok_responses):
"""inits a website checker with an url and
a check_interval : time between two checks"""
self.url = url
self.name = name
self.check_interval = check_interval
self.ok_responses = ok_responses
self.responses = []
self.wrong_url = False
self.available = True
self.lock = threading.Lock()
self.thread_check = threading.Thread(target=Website.run_check,
args=(self, ))
self.thread_check.daemon = True
self.thread_check.start()
if not self.check():
print_command(
"Impossible to reach Website, check the URL and your internet connection"
)
def change_check_interval(self, check_interval):
"""change the time between two checks"""
if check_interval <= 0:
print_command("Minimum check interval = 1s")
check_interval = 1
self.check_interval = check_interval