SixthProject/Sixth-frontend(test session in redis)/app/main/views.py

# 主業務邏輯中的視圖和路由的定義
import os
import datetime
from flask import render_template, request, session, Response, url_for
# 導入藍圖程序，用於構建路由
from werkzeug.utils import redirect, secure_filename
from . import main
from manage import mqtt
# 導入db，用於操作數據庫
from manage import db, app
# 導入實體類，用於操作數據庫
from ..models import *
import json
from datetime import datetime as dt
from sqlalchemy import text
import socket
import pickle
import cv2
import numpy as np
import math
import threading
import time
from flask_mqtt import Mqtt
import requests
import re
import copy
from selenium import webdriver
from selenium.webdriver.support.ui import Select
from bs4 import BeautifulSoup
from time import sleep as sl
from app import ALLOWED_EXTENSIONS


# 主頁的訪問路徑
@main.route('/')
def main_index():
    # 獲取登入信息
    if 'id' in session and 'uname' in session and 'status' in session:
        username = session['uname']
        if session['status'] == 1:
            return redirect('/index')
        elif session['status'] == 2:
            return redirect('/index')
    else:
        return render_template('sign_in.html')


# 登入頁面的訪問路徑
@main.route('/login', methods=['GET', 'POST'])
def login_views():
    if request.method == 'GET':
        if 'id' in session and 'uname' in session and 'status' in session:
            return redirect('/')
        else:
            return render_template('sign_in.html')
    else:
        # 接收前端傳過來的資料
        username = request.form['username']
        password = request.form['password']
        # 使用接收的用戶和密碼到資料庫中查詢
        user = User.query.filter_by(username=username, password=password).first()
        # 如果用戶存在，將信息保存置session並重定向回首頁，否則回登入頁
        if user:
            resp = redirect('/')
            # 判斷是否有記住密碼
            if 'rem' in request.form:
                sn = str(user.sn)
                max_age = 60 * 60 * 24 * 365
                resp.set_cookie("username", username, max_age=max_age)
                resp.set_cookie("sn", sn, max_age=max_age)

            session['uname'] = user.username
            session['id'] = user.sn
            session['status'] = user.status
            return resp
        else:
            errMsg = "Wrong login or password"
            return render_template('sign_in.html', errMsg=errMsg)


# 註冊頁面的訪問路徑
@main.route('/register', methods=['POST', "GET"])
def register_views():
    if request.method == 'GET':
        return render_template('registration.html')
    else:
        # 獲取文本框的值並賦值給user實體對象
        user = User()
        user.firstname = request.form['firstname']
        user.lastname = request.form['lastname']
        user.mail = request.form['email']
        user.phone = request.form['phone']
        user.username = request.form['username']
        user.password = request.form['password']
        user.status = 1
        user.isActive = True
        # 將數據保存進資料庫  - 註冊
        db.session.add(user)
        # 手動提交，目的是為了獲取提交後的user的id
        db.session.commit()
        # 當user成功插入進資料庫之後，程序會自動將所有信息取出來在賦值給user
        # 完成登入的操作
        user = User.query.filter_by(username=user.username).first()
        session['id'] = user.sn
        session['uname'] = user.username
        session['status'] = user.status
        return redirect('/')


#登入重設密碼的頁面
@main.route('/reset_password', methods=['POST', 'GET'])
def reset_password_views():
    if request.method == 'GET':
        if 'mail' in session:
            del session['mail']
        return render_template('reset_pwd1.html')
    else:
        #如果有id在session裡，代表從reset_pwd2過來的
        if "mail" in session:
            new_pwd = request.form['new_pwd']
            confirm_pwd = request.form['confirm_pwd']
            #判斷密碼是否一致
            if new_pwd == confirm_pwd:
                mail = session['mail']
                user = User.query.filter_by(mail=mail).first()
                user.password = new_pwd
                db.session.add(user)
                del session['mail']
                #修改完後回登入頁
                return redirect('/login')
            else:
                errMsg = "Passwords does not match"
                return render_template('reset_pwd2.html', errMsg=errMsg)

        email = request.form['email']
        user = User.query.filter_by(mail=email).first()
        if user:
            session['mail'] = user.mail
            return render_template('reset_pwd2.html')
        else:
            errMsg = "Wrong email.Please try again"
            return render_template('reset_pwd1.html', errMsg=errMsg)



#驗證email訪問路徑
@main.route('/check_email')
def check_email_views():
    email = request.args['email']
    user = User.query.filter_by(mail=email).first()
    if user:
        result = {"errMsg":" "}
    else:
        result = {"pass":" "}
    return json.dumps(result)

#驗證username訪問路徑
@main.route('/check_username')
def check_username_views():
    username = request.args['username']
    user = User.query.filter_by(username=username).first()
    if user:
        result = {"errMsg":" "}
    else:
        result = {"pass":" "}
    return json.dumps(result)


#用戶主介面的訪問路徑
@main.route('/index', methods=['POST', 'GET'])
def index_views():
    username = session['uname']
    farm_info = FarmInfo.query.filter_by(user_id=session['id']).first()
    purchase_info = PurchaseInfo.query.filter_by(user_id=session['id']).first()
    monitor_num = purchase_info.monitor_num
    nodes = NodePosition.query.filter_by(user_id=session['id']).all()
    node_imgs = NodeImage.query.filter_by(user_id=session['id']).all()
    nodeimg_paths = []
    for node_img in node_imgs:
        nodeimg_paths.append("http://localhost:5555" + node_img.path[3:])
    if request.method == 'GET':
        path = farm_info.path
        if path == '0':
            path = False
        else:
            path = 'http://localhost:5555' + path[3:]

        lat = farm_info.loc_lat
        lng = farm_info.loc_lng
        if lat== '0' or lng == '0':
            lat = False
            lng = False
        return render_template('index.html', params=locals())
    else:
        pass




#過濾前端傳過來文件副檔名函數
def allowed_file(filename):
    return '.' in filename and \
           filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS




#環境資訊的訪問路徑
@main.route('/env_info/<tid>', methods=['POST', 'GET'])
def env_info_views(tid):
    username = session['uname']
    purchase_info = PurchaseInfo.query.filter_by(user_id=session['id']).first()
    monitor_num = purchase_info.monitor_num
    node_info = NodeInfo.query.filter_by(user_id=session['id']).first()
    node_info = eval(node_info.node_info)
    # print(node_info)
    first_monitor = json.dumps(node_info['node' + str(tid)])
    if request.method == 'GET':
        sensors = SensorList.query.all()
        sensor_list = []
        for sensor in sensors:
            sensor_list.append(sensor.toDict())
        return render_template('env_info.html', params=locals())
    else:
        pass

#監控功能選取的訪問路徑
@main.route('/monitor/<tid>', methods=['POST', 'GET'])
def monitor_views(tid):
    node_info = NodeInfo.query.filter_by(user_id=session['id']).first()
    node_info = eval(node_info.node_info)
    # print(node_info)
    if request.method == 'GET':
        d = request.args.to_dict()
        if d['monitor']:
            module_list = node_info['node' + str(tid)][str(d['monitor'])]
            return json.dumps(module_list)
        return render_template('env_info.html', params=locals())
    else:
        pass




# 退出的訪問路徑
@main.route('/logout')
def logout_views():
    if 'id' in session and 'uname' in session:
        del session['id']
        del session['uname']
        del session['status']
    return redirect('/')