def main():
nb_connection = 0
Websock.send_esp_state(1)
while True:
Mesh.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
while True:
try:
Mesh.socket.bind((c.HOST, c.PORT))
Mesh.socket.listen(5)
except socket.error as msg:
print_flush("Socket has failed :", msg)
time.sleep(0.1)
continue
break
socket_thread = None
while True:
print_flush("Socket opened, waiting for connection...")
conn, addr = Mesh.socket.accept()
print_flush("Connection accepted with {0}".format(addr))
if (socket_thread != None):
socket_thread.close_socket()
print_flush("The previous connection has been closed")
socket_thread = Mesh(conn, addr)
Mesh.print_mesh_info()
socket_thread.start()
def callback(self, ch, method, properties, body):
Mesh.consummed += 1
if Mesh.consummed % 100 == 0: #display mesh status each 100 models received
Mesh.required_amount = SchedulerState.get_amount()
Mesh.print_mesh_info()
# uncommment to reduce the amount of frames send during the esp declaration phase
# if Mesh.comp < Mesh.required_amount :
# print_flush("Not enough pixels on the mesh network to display the model")
# return
if Websock.should_get_deco():
Listen.deco = json.loads(Websock.get_deco())
b = body.decode('ascii')
self.model.set_from_json(b)
tmp = Websock.get_esp_state()
if tmp != None and eval(tmp) != self.previous_state:
Mesh.change_esp_state = True
print_flush("tmp != None, tmp = {}".format(tmp))
self.previous_state = eval(tmp)
else:
Mesh.change_esp_state = False
if Mesh.change_esp_state: # A procedure has started (ie AMA.py is launched) and both the mesh network and the serveur have to be ready
self.procedures_manager()
elif (Mesh.ama == 1): # A procedure is running
self.ama_care()
elif (Mesh.addressed):
# Production mod : all pixels are addressed
Mesh.sequence = (Mesh.sequence + 1) % 65536
array = slef.msg.color(self.model._model, Mesh.sequence,
Mesh.pixels, Listen.unk)
self.mesh_conn.send(array)
else: # Temporisation required between the launching of AMA.py and the frist model matching the procedure arrives
print_flush("{} : It is not the time to send colors".format(
Mesh.consummed))
def run(self, params, expires_at=None):
with self.lock:
self.model.set_all((0, 0, 0))
self.send_model()
users = loads(Websock.get_users())['users']
if (len(users) == 1):
self.user = users[0]
Websock.set_grantUser(self.user)
self.connectionserver = pika.BlockingConnection(self.paramsserver)
self.channelserver = self.connectionserver.channel()
self.channelserver.exchange_declare(exchange='logs',
exchange_type='fanout')
result = self.channelserver.queue_declare('', exclusive=True)
queue_name = result.method.queue
self.channelserver.queue_bind(exchange='logs', queue=queue_name)
self.channelserver.basic_consume(queue=queue_name,
on_message_callback=self.callback,
auto_ack=True)
logging.info(
'Waiting for pixel data on queue "{}".'.format(queue_name))
self.channelserver.start_consuming()
def admin_app_quit(user):
if is_admin(user):
if (SchedulerState.get_current_app()['name'] == "Snap"):
Websock.set_grantUser({'id': "turnoff", 'username': "******"})
removed = SchedulerState.stop_forced_app_request(user)
return jsonify(removed=removed)
else:
abort(403, "Forbidden Bru")
return '', 204
def update(self):
Websock.send_pos_unk(self.pos_unknown) #List of pixels to be addressed
default = self.pixels.pop(
'default'
) #As default is a false pixel, it must be removed before sending the array
#print_flush(self.pixels)
Websock.send_pixels(self.pixels) #list of addressed pixels
if default: #if default was removed, it is added again.
self.pixels['default'] = default
def reattributing_indexes(self):
self.deco = loads(
Websock.get_deco()) #retrieves the disconnected cards.
for mac in self.pos_unknown.keys():
if len(self.deco) > 0:
# dummy security, should do something in the case of it happenning but dunno what (yet)
pixel_deco = self.deco.popitem()
self.pos_unknown[mac] = (
(-1, -1), pixel_deco[1][1]
) #associate the disconnected card index to the unknown card.
self.pixels = loads(
Websock.get_pixels()) #retrieves the current pixel list
self.pixels['default'] = ((-1, -1), -1) #adds the fake pixel security.
def stop_app(self, c_app, stop_code=None, stop_message=None):
# flask_log(" ========= STOP_APP ====================")
if not c_app or 'task_id' not in c_app:
print_flush('Cannot stop invalid app')
return
from tasks.celery import app
if not c_app.get('is_default', False) and not c_app.get('is_forced', False):
if stop_code and stop_message and 'userid' in c_app:
Websock.send_data(stop_code, stop_message, c_app['username'], c_app['userid'])
app.control.revoke(c_app['task_id'], terminate=True)
self.frontage.fade_out()
SchedulerState.set_current_app({})
def addressing_procedure(self):
iteration = 1 #Unused variable - functionality to be implemented later
#AMA/HAR shall continue as long as there are pixels without known position
while (len(self.pos_unknown) != 0):
if self.action == 1:
#the previous pixel has its right position, considering a new one
(mac, ((x, y), ind)) = self.pos_unknown.popitem()
else:
#the previous position was ill initialize, the same card is considered again, and removed from addressed pixel.
self.pixels.pop(mac)
self.pos_unknown.pop(mac)
self.matriceR(ind,
iteration) #First, send the position request model
Websock.send_ama_model(
0) #Warn the server that the model is in 1D array format
#print_flush(self.model)
self.coord = (
-1, -1
) #Reset coordinate in case previous addressing was wrong
print_flush("Waiting for user to input coordinates...")
#print_flush([(val[0][0],val[0][1]) for val in self.pixels.values()])
#print_flush(self.coord)
#The command under generate an array containing all the (x, y) coordinates of addressed card.
while ((self.coord in [(val[0][0], val[0][1])
for val in self.pixels.values()])):
#Here is where the default pixel is used : is coordinate of (-1, -1) matches with self.coord, so the program can't progress until user specified new coordinate
self.send_model()
time.sleep(0.05)
#print_flush("apr la boucle d'attente active............................................................;")
self.pixels[mac] = (self.coord, ind
) #update of the local dictionary
self.update() #Update the server dictionnaries
self.matriceG(ind) #Send the validation matrix
Websock.send_ama_model(
1
) # Warns the server that the model must be interpreted as a normal 2D array.
self.action = 0 #No validation input
print_flush("Waiting for user validation...")
while (self.action == 0):
#wait for the confirmation of the administrator
self.send_model()
time.sleep(0.05)
if self.action == 1:
#Action is validated by user
print_flush("Input confirmed")
iteration += 1
else: # the pixel is reput in the pos_unknown dictionary as its position is false
print_flush("Input canceled")
self.pos_unknown[mac] = ((x, y), ind)
def __init__(self):
clear_all_task()
redis.set(SchedulerState.KEY_USERS_Q, '[]')
redis.set(SchedulerState.KEY_FORCED_APP, 'False')
Websock.set_grantUser({'id': "turnoff", 'username': "******"})
self.frontage = Frontage(SchedulerState.get_rows(),
SchedulerState.get_cols())
self.current_app_state = None
self.queue = None
self.count = 0
self.apps = OrderedDict([(app, globals()[app]('', ''))
for app in get_app_names()])
SchedulerState.set_registered_apps(self.apps)
def set_user(user):
if (not is_admin(user)):
abort(403, "Forbidden Bru")
body = request.get_json()
id = body['selected_client']
users = (json.loads(Websock.get_users()))['users']
guser = None
if (id != "turnoff"):
for user in users:
if (user['id'] == id):
guser = user
if (guser == None):
return jsonify(success=False, message="No such client")
else:
guser = {'id': "turnoff", 'username': "******"}
Websock.set_grantUser(guser)
return jsonify(success=True, message="Client authorized successfully")
def ama_care(self):
#Get the new pixel addressed positions
tmp = Websock.get_pixels()
if tmp != None and tmp != {}:
Mesh.pixels = json.loads(tmp)
tmp = json.loads(Websock.get_pos_unk())
if tmp != None:
Listen.unk = tmp
#Get the model format to check
tmp = Websock.get_ama_model()
if tmp != None:
self.ama_check = eval(tmp)['ama']
if self.ama_model():
# send a COLOR frame only if the model match the expected model
Mesh.sequence = (Mesh.sequence + 1) % 65536
array = self.msg.color(self.model._model, Mesh.sequence,
Mesh.pixels, Listen.unk, self.ama_check)
self.mesh_conn.send(array)
def stop_app(self, c_app, stop_code=None, stop_message=None):
# flask_log(" ========= STOP_APP ====================")
if not c_app or 'task_id' not in c_app:
return
from tasks.celery import app
if not c_app.get('is_default', False) and not c_app.get(
'is_forced', False):
if stop_code and stop_message and 'userid' in c_app:
Websock.send_data(stop_code, stop_message, c_app['username'],
c_app['userid'])
sleep(0.1)
# revoke(c_app['task_id'], terminate=True, signal='SIGUSR1')
# app.control.revoke(c_app['task_id'], terminate=True, signal='SIGUSR1')
app.control.revoke(c_app['task_id'], terminate=True)
self.frontage.fade_out()
sleep(0.05)
def callback(self, ch, method, properties, body):
self.consumme += 1
listpixels = loads(body.decode('ascii'))
nuser = loads(Websock.get_grantUser())
if (nuser.get('id') is None or nuser.get('id') == "turnoff"):
logging.info("Turn off request")
self.erase_all()
elif nuser['id'] != self.user['id']:
self.user = nuser
self.erase_all()
self.set_rgb_matrix(listpixels['pixels'])
else:
self.set_rgb_matrix(listpixels['pixels'])
def skip_procedure(self):
#Retrieves the previous configuration
self.pixels = SchedulerState.get_pixels_dic()
#print_flush("Before readressing : {0} - {1}".format(self.pixels, self.pos_unknown))
delete = [key for key in self.pos_unknown
] #retrieves all the mac address of the card to be addressed
for key in delete: #Pixel will be matched one on one with those of the Database, according to their mac address.
value = self.pos_unknown[key]
pixel = self.pixels.get(key)
if pixel is None: #No match is found : user shouldn't have use this... unforeseen behaviour may occur from this point on.
print_flush("ERROR : using skip is not possible")
else:
pixel = (pixel[0], value[1]
) #The old index value is replaced with the new one.
self.pixels[key] = pixel #the pixel is then updated
self.pos_unknown.pop(
key
) #Finally, the pixel being addressed, so it's removed for the Unkown list.
#print_flush("After readressing : {0} - {1}".format(self.pixels, self.pos_unknown))
#Finally, the dictionnary modifications are notified to the server though the Websocket
Websock.send_pos_unk(self.pos_unknown)
Websock.send_pixels(self.pixels)
def __init__(self, com):
Thread.__init__(self)
self.msg = Frame()
self.com = com
self.count = 0
Websock.send_deco(Listen.deco)
Websock.send_pos_unk(Listen.unk)
Websock.send_get_deco(False)
def procedures_manager(self):
Mesh.ama += 1
if Mesh.ama == 1: #AMA procedure starts
print_flush("START AMA")
Mesh.addressed = False
Mesh.print_mesh_info()
array = self.msg.ama(c.AMA_INIT)
self.mesh_conn.send(array)
elif Mesh.ama == 2: # Ends adressing procedures
Mesh.addressed = True
Mesh.print_mesh_info()
array = self.msg.ama(c.AMA_COLOR)
self.mesh_conn.send(array)
print_flush("END addressing procedure")
else: # HAR procedure starts
print_flush("START HAR")
Mesh.ama = 1
Mesh.addressed = False
Mesh.print_mesh_info()
array = self.msg.har(Mesh.mac_root, c.STATE_CONF)
self.mesh_conn.send(array)
print_flush(Listen.unk.keys(), Listen.deco)
# The pixel in deco are one by one being forgotten and their index is attributed to one of the unknown
for mac in Listen.unk.keys():
if len(Listen.deco) > 0:
pixel_deco = Listen.deco.popitem()
print_flush("Adding new element")
print_flush(pixel_deco)
print_flush("Inserted unknwon card at {0}".format(
pixel_deco[1][1]))
Listen.unk[mac] = ((-1, -1), pixel_deco[1][1])
array = self.msg.install_from_mac(mac, pixel_deco[1][1])
self.mesh_conn.send(array)
Websock.send_pos_unk(Listen.unk)
Mesh.print_mesh_info()
array = slef.msg.ama(c.AMA_INIT)
self.mesh_conn.send(array)
def update_DB(self):
if self.pixels.get('default'): #Remove the fake pixel
self.pixels.pop('default')
#Updates the server dictionnaries
Websock.send_pixels(self.pixels)
Websock.send_pos_unk({})
Websock.send_deco(self.deco)
Websock.send_get_deco()
#Update DB
if (
self.params['mode'] == 'ama' or self.params['mode'] == 'skip'
): # in case of initial addressing, the previous configuration is first deleted.
SchedulerState.drop_dic()
print_flush("Database cleaned")
while (len(self.pixels) !=
0): #Pixels are then added one by one to the database
(mac, ((x, y), ind)) = self.pixels.popitem()
SchedulerState.add_cell(x, y, mac, ind)
print_flush("Database updated")
def run(self, params, expires_at=None):
self.start_socket()
# get necessary informations
self.rows = SchedulerState.get_rows()
self.cols = SchedulerState.get_cols()
# get the pixels to address
self.pos_unknown = loads(
Websock.get_pos_unk()) #format {'@mac1' : ((x,j), index), ...}}
self.params = params
print_flush("Launched AMA app with {0} parameter".format(
self.params['mode']))
if (self.params['mode'] == 'ama'
): # assisted manual addressing : reset the position of all pixels
Websock.send_pixels({})
elif (self.params['mode'] == 'rac'):
# hot assisted readdressing : reattribute the unusued pixel indexes (get from deconnected pixels) without changing already addressed pixels
self.deco = loads(Websock.get_deco())
array = []
for key in self.deco.keys(
): #Generate the list of all free cells for the frontend
value = self.deco[key]
array += [value[0]]
self.send_pixel_down(array) #sends this list to the frontend
self.reattributing_indexes() #update the dictionnaries
#Put esp root in ADDR or CONF state, depending on the current state of the server : indicate start of procedure
Websock.send_esp_state(0)
if self.params['mode'] == 'skip':
self.skip_procedure()
sleep(1)
else:
self.addressing_procedure()
#publish on REDIS and save in DB the new pixels dictionary
self.update_DB()
#Put ESPs in COLOR state
Websock.send_esp_state(1)
self.visual_verification()
self.wait_to_be_kill()
def send_message(self, code):
Websock.send_data(code, 'Gamelife message', self.username, self.userid)
def send_game_over(self):
Websock.send_data(Fap.CODE_GAME_OVER, 'GAME_OVER', self.username,
self.userid)
def send_close_app(self):
Websock.send_data(Fap.CODE_CLOSE_APP, 'CLOSING', self.username,
self.userid)
class Fap(object):
CODE_CLOSE_APP = 1
CODE_GAME_OVER = 2
CODE_EXPIRE = 3
CODE_EXPIRE_SOON = 4
CODE_TETRIS_CLEARED_ROW = 10
CODE_SNAKE_ATE_APPLE = 11
PARAMS_LIST = []
PLAYABLE = False
ACTIVATED = True
ENABLE = True
LOCK = RWLock()
LOCK_WS = RWLock()
def __init__(self, username, userid):
SchedulerState.set_expire_soon(False)
self.max_time = None
self.params = None
self.username = username
self.userid = userid
self.ws = None
self.model = Model(SchedulerState.get_rows(),
SchedulerState.get_cols())
credentials = pika.PlainCredentials(
environ.get('RABBITMQ_DEFAULT_USER'),
environ.get('RABBITMQ_DEFAULT_PASS'))
self.connection_params = pika.ConnectionParameters(
host='rabbit',
credentials=credentials,
connection_attempts=100,
heartbeat=0)
self.connection = pika.BlockingConnection(self.connection_params)
##### Channel used for emiting model to scheduler
self.channel = self.connection.channel()
self.channel.exchange_declare(exchange='model', exchange_type='fanout')
def run(self):
raise NotImplementedError("Fap.run() must be overidden")
def send_close_app(self):
Websock.send_data(Fap.CODE_CLOSE_APP, 'CLOSING', self.username,
self.userid)
def send_game_over(self):
Websock.send_data(Fap.CODE_GAME_OVER, 'GAME_OVER', self.username,
self.userid)
def send_message(self, code):
Websock.send_data(code, 'Gamelife message', self.username, self.userid)
@staticmethod
def send_expires(username='', userid=''):
SchedulerState.set_expire(True)
Websock.send_data(Fap.CODE_EXPIRE, 'EXPIRE', username, userid)
@staticmethod
def send_expires_soon(timeout_in_sec, username='', userid=''):
SchedulerState.set_expire_soon(True)
Websock.send_data(Fap.CODE_EXPIRE_SOON, timeout_in_sec, username,
userid)
def start_socket(self):
self.ws = Websock(self, '0.0.0.0', 33406)
self.ws.start()
def flash(self, duration=4., speed=1.5):
"""
Blocking and self-locking call flashing the current model on and off (mainly for game over)
:param duration: Approximate duration of flashing in seconds
:param rate: Rate of flashing in Hz
"""
rate = Rate(speed)
t0 = time.time()
model_id = 0
# with self._model_lock:
models_bck = self.model._model.copy()
model_off = False
while time.time() - t0 < duration or model_off:
# with self._model_lock:
if model_id:
self.model.set_all('black')
else:
self.model._model = models_bck.copy()
model_id = (model_id + 1) % 2
model_off = not model_off
self.send_model()
rate.sleep()
def send_model(self):
if not self.LOCK.acquire_write(2):
print('Wait for RWLock for too long in Bufferize...Stopping')
return
try:
self.channel.basic_publish(exchange='model',
routing_key='',
body=self.model.json())
except Exception as e:
print('FAP Cannot send model to scheduler')
raise e
finally:
self.LOCK.release()
def jsonify(self):
struct = {}
struct['name'] = self.__class__.__name__
struct['params'] = self.params
struct['params_list'] = self.PARAMS_LIST
struct['playable'] = self.PLAYABLE
struct['activated'] = self.ACTIVATED
struct['max_time'] = self.max_time
return struct
def close(self):
if self.channel is not None:
self.channel.close()
if self.connection is not None:
self.connection.close()
if self.ws is not None:
self.ws.close()
time.sleep(0.2)
def start_socket(self):
self.ws = Websock(self, '0.0.0.0', 33406)
self.ws.start()
def send_expires(username='', userid=''):
SchedulerState.set_expire(True)
Websock.send_data(Fap.CODE_EXPIRE, 'EXPIRE', username, userid)
def send_expires_soon(timeout_in_sec, username='', userid=''):
SchedulerState.set_expire_soon(True)
Websock.send_data(Fap.CODE_EXPIRE_SOON, timeout_in_sec, username,
userid)
def get_users(user):
if (not is_admin(user)):
abort(403, "Forbidden Bru")
users = (json.loads(Websock.get_users()))['users']
guser = (json.loads(Websock.get_grantUser()))
return jsonify(list_clients=users, selected_client=guser)
def send_pixel_down(self, positions):
print_flush("Sending positions to frontend...")
#print_flush(positions)
Websock.send_data(positions, 'Pixel down message', self.username,
self.userid)
def listen(self):
data = ""
self.count += 1
print_flush("{0} Listening... {1}".format(
self.count, time.asctime(time.localtime(time.time()))))
# receives 1500 (a wifi frame length)
data = self.com.recv(1500)
print_flush("\tReceived : {} ({}) (valid ? {})".format(
data, len(data), self.msg.is_valid(data)))
if (data != "" and self.msg.is_valid(data)):
if (data[c.TYPE] == c.ERROR):
mac = self.msg.array_to_mac(data[c.DATA + 2:c.DATA + 8])
print_flush("Pixel {0} has encountered a problem {1}".format(
mac, data[c.DATA]))
if data[c.DATA] == c.ERROR_DECO:
# 1) the pixel deconnected has to be removed from the working pixel dictionnary and put in the deconnected pixel one
# If the pixel is not adressed it can be removed from the server knowledges
if (Mesh.pixels.get(mac) is not None):
Listen.deco[mac] = Mesh.pixels.pop(mac)
Websock.send_pixels(Mesh.pixels)
Websock.send_deco(Listen.deco)
elif (Listen.unk.get(mac) is not None):
Listen.unk.pop(mac)
array = self.msg.error(data, ack=True)
print_flush("Add pixel {0} to Listen.deco : {1}".format(
mac, Listen.deco))
elif data[c.DATA] == c.ERROR_CO:
# 1) the new pixel is deal with along with the informations known about it.
# If it has been adressed, it gets to work again without any action from administrator
# Else a administrator action is required. In the former case the pixel goes in working pixels dic
# In the latter it goes in unknown pixels dic to wait for human intervention
if mac in Listen.deco:
print_flush("Address is in Listen.deco")
Mesh.pixels[mac] = Listen.deco.pop(mac)
Websock.send_pixels(Mesh.pixels)
Websock.send_deco(Listen.deco)
array = self.msg.error(data, ack=True)
elif mac in Mesh.pixels:
print_flush("Address is in Mesh.pixels")
array = self.msg.error(data, ack=True)
else:
# Raising UNK flag
Listen.unk[mac] = ((-1, -1), -1)
Websock.send_pos_unk(Listen.unk)
array = self.msg.error(data, ack=True, unk=True)
elif data[c.DATA] == c.ERROR_ROOT:
# 1) a reelection has occured in the mesh network, the new esp root send a frame to declared herself.
# The mac_root is updated and the known card number is comparted to the one of the root.
Mesh.mac_root = mac
nb_card = (data[c.DATA + 1] & 0xF0) >> 4
print_flush("on dit qu'il y a {}".format(nb_card))
# 2) If the error has occured because of the mesh network : the routing table is sent to the newly elected esp root
# Else it was due to the sever wich takes the nb_pixels has granted and considered pixels has addressed.
if Mesh.comp >= nb_card:
self.send_table(data[c.DATA + 1] & 0x0F)
else:
Mesh.comp = nb_card
Mesh.addressed = True
array = self.msg.har(Mesh.mac_root,
data[c.DATA + 1] & 0x0F)
self.com.send(array)
return
else:
print_flush("Unkown message type")
print_flush(
"Updates Listen.deco {0} \n Updates Listen.unk {1}".
format(Listen.deco, Listen.unk))
# 2) Once the ERROR has been managed and informations updated, the esp root is informed of its fate
self.com.send(array)
print_flush("acquitted")
elif (data[c.TYPE] == c.BEACON):
# 1) BEACON are only received during configuration phase. The esp declared itself one-by-one.
# Along with their declarations, they are stocked in unk dic wich is sent on Reddis at each new esp BEACON.
# It is necessary to do so because their is no way to known in advance how many esp will be in the mesh network.
mac = self.msg.array_to_mac(data[c.DATA:c.DATA + 6])
print_flush("Pixel {0} is declaring itself".format(mac))
if (Mesh.comp == 0):
# The first to declared itself is the esp root
Mesh.mac_root = mac
if Listen.unk.get(mac) != None:
# an ESP is only considered once
print_flush("But it has already be declared ")
pass
Listen.unk[mac] = ((-1, -1), Mesh.comp)
Websock.send_pos_unk(Listen.unk)
array = self.msg.install(data, Mesh.comp)
Mesh.comp += 1
# 2) A INSTALL Frame is sent to the esp root for it to update its routing table and acknoledge the esp first sender
self.com.send(array)
else:
print_flush("received unintersting message...")
