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app.py
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app.py
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#!flask/bin/python
from flask_cors import CORS, cross_origin
from flask import Flask, request, send_file, send_from_directory
from flask_restful import Api
from flask_socketio import SocketIO, emit, join_room, send, disconnect
from celery import Celery
from io import BytesIO
import json
import glob
import os
import io
import matlab.engine
import time
import gspread
from oauth2client.service_account import ServiceAccountCredentials
from pprint import pprint
import base64
from flask_jwt import JWT, current_identity
from flask_sqlalchemy import SQLAlchemy
from flask_jwt_extended import JWTManager, jwt_required
'''
MOLTO - MISSION DESIGNER - API
Authors: Brandon Israel Escamilla Estrada
David Morante Gonzaléz
'''
'''
Google Cloud Configuration
In this section, we configure google account in order to get spreadsheet files from drive.
MOLTO-a34bb73396ba.json is created by Google in the Google Cloud Console.
'''
scope = ["https://spreadsheets.google.com/feeds",'https://www.googleapis.com/auth/spreadsheets',"https://www.googleapis.com/auth/drive.file","https://www.googleapis.com/auth/drive"]
creds = ServiceAccountCredentials.from_json_keyfile_name("MOLTO-a34bb73396ba.json", scope)
client = gspread.authorize(creds)
'''
Flask App Configuration
In this section, the celery service is configured using redis as the main broker.
The CORS is also configured to receive request from another servers.
'''
app = Flask(__name__)
app.config['CELERY_BROKER_URL'] = 'redis://localhost:6379/0'
app.config['CELERY_RESULT_BACKEND'] = 'redis://localhost:6379/0'
api = Api(app)
'''
Database Configuration
'''
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///app.db'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['SECRET_KEY'] = 'molto'
db = SQLAlchemy(app)
'''
Celery Configuration
'''
celery = Celery(app.name, broker=app.config['CELERY_BROKER_URL'])
celery.conf.update(app.config)
CORS(app, resources={r"/foo": {"origins": "http://localhost:port"}})
'''
JWT Configuration
'''
app.config['JWT_SECRET_KEY'] = 'jwt-secret-string'
jwt = JWTManager(app)
app.config['JWT_BLACKLIST_ENABLED'] = True
app.config['JWT_BLACKLIST_TOKEN_CHECKS'] = ['access', 'refresh']
'''
Matlab and SocketIO Configuration
In this section, the Matlab engine is started and the SocketIO port is configured.
'''
eng = matlab.engine.start_matlab()
eng.addpath(eng.genpath('~/MOLTO-IT-API')) #Directory from server
eng.addpath(eng.genpath('~/MOLTO-IT'))
socket = SocketIO(app, async_mode="eventlet")
'''
Global Variables
'''
static_file_dir = os.path.expanduser('~/tmp/Ceres') #Directory from static file Generations pareto front
static_home_dir = os.path.expanduser('~/MOLTO-IT-API')
gettime = time.time()
'''
Sockets
'''
@socket.on('connect')
def on_connect():
print('Client connected!')
@socket.on('on_connect_data')
def on_connect_data(data):
send_temporal_files(data['generations'], data['problem_name'])
@socket.on('disconnect')
def on_disconnect():
print('Client disconnected')
disconnect()
@socket.on('get latest')
def send_temporal_files(maxGen, missionName):
list_of_files = glob.glob( os.path.expanduser('~/tmp/' + missionName + '/*')) # * means all if need specific format then *.csv
if list_of_files:
list_of_files.remove('/home/brandon/tmp/' + missionName + '/Results_extended.txt')
matchers = ['Trajectory','Accel']
matching = [s for s in list_of_files if any(xs in s for xs in matchers)]
res = [i for i in list_of_files if i not in matching]
sorted_files = sorted(res, key=lambda x: int(x.split('/')[-1].split('.')[0][3:]))
latest_file = max(sorted_files, key=os.path.getctime)
data = open(latest_file, 'r')
print(data)
print('Sending file...')
data_ = data.readlines()
dataDict = {}
count = -1
for list in data_:
count += 1
x = list.split()
dataDict[count] = x
dataDict[len(dataDict)] = latest_file.split('/')[-1].split('.')[0][3:]
if maxGen == int(dataDict[len(dataDict)-1]):
emit('tmp', dataDict)
print('Thats all!')
time.sleep(10)
on_disconnect()
else:
emit('tmp', dataDict)
else:
print('No files.')
emit('tmp', {'isAnyFile': False})
'''
Import login routes
'''
import models, resources
api.add_resource(resources.UserRegistration, '/registration')
api.add_resource(resources.UserLogin, '/login')
api.add_resource(resources.UserLogoutAccess, '/logout/access')
api.add_resource(resources.UserLogoutRefresh, '/logout/refresh')
api.add_resource(resources.TokenRefresh, '/token/refresh')
api.add_resource(resources.AllUsers, '/users')
api.add_resource(resources.SecretResource, '/secret')
'''
API Routes
'''
#Initialize database
@app.before_first_request
def create_tables():
db.create_all()
#Check if user is in blacklist
@jwt.token_in_blacklist_loader
def check_if_token_in_blacklist(decrypted_token):
jti = decrypted_token['jti']
return models.RevokedTokenModel.is_jti_blacklisted(jti)
print("The server is up and running.")
@app.route('/', methods=['GET','POST'])
@jwt_required
def index():
if request.method == 'POST':
return "MOLTO - MISSION DESIGNER - API"
elif request.method == 'GET':
return "MOLTO - MISSION DESIGNER - API"
@app.route('/optimization/mission/json', methods=['GET', 'POST'])
@jwt_required
@cross_origin(origin='localhost',headers=['Content- Type','Authorization'])
def optimization_mission_json():
global eng
if request.method == 'POST':
data = request.get_json()
#maxGen = data['maxGen']
task = callGeneticAlgorithm.apply_async(args=[data], countdown=5)
if data['plot'] > 0:
static_file_dir = os.path.expanduser('~/tmp/' + data['problem_name'] + '/Trajectory' + str(data['plot']) + '.png') #Directory from static file Generations pareto front
return get_file(static_file_dir)
else:
return "finish"
elif request.method == 'GET':
eng = matlab.engine.start_matlab()
return "Motor Inicializado."
@app.route('/get_file/<path:located>/', methods=['GET', 'POST'])
def get_file(located):
if request.method == 'POST':
time.sleep(10)
#First, encode our image with base64
with open(located, "rb") as imageFile:
img = base64.b64encode(imageFile.read())
return img
@app.route('/collaborators', methods=['GET'])
@jwt_required
@cross_origin(origin='localhost',headers=['Content- Type','Authorization'])
def get_collaborators():
global gettime
if request.method == 'GET':
if(time.time() - gettime > 60* 59):
client.login()
gettime = time.time()
time.sleep(1)
sheet = client.open("colaboradores").sheet1 # Open the spreadhseet
data = sheet.get_all_records() # Get a list of all records
return json.dumps(data)
@app.route('/sliders', methods=['GET'])
@jwt_required
@cross_origin(origin='localhost', headers=['Content-Type', 'Authorization'])
def get_sliders():
global gettime
if request.method == 'GET':
if(time.time() - gettime > 60* 59):
client.login()
gettime = time.time()
time.sleep(2)
sheet = client.open('Slider').sheet1
data = sheet.get_all_records()
return json.dumps(data)
@celery.task
def callGeneticAlgorithm(data):
with open('example.json', 'w') as json_file:
json.dump(data, json_file)
print(data)
name = open('example.json', 'r').read()
eng.molto_it_json(name, nargout=0)
eng.quit()
return send_from_directory(static_file_dir, 'Results_extended.txt')
if __name__ == '__main__':
socket.run(app, host="0.0.0.0", threaded=True)