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app.py
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app.py
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import os
from cs50 import SQL
from flask import Flask, flash, redirect, render_template, request, session
from flask_session import Session
from tempfile import mkdtemp
from werkzeug.security import check_password_hash, generate_password_hash
from functools import wraps
app = Flask(__name__)
# Configure CS50 Library to use SQLite database
db = SQL("sqlite:///BloodAssit.db")
# Ensure templates are auto-reloaded
app.config["TEMPLATES_AUTO_RELOAD"] = True
# Configure session to use filesystem (instead of signed cookies)
app.config["SESSION_PERMANENT"] = False
app.config["SESSION_TYPE"] = "filesystem"
Session(app)
@app.after_request
def after_request(response):
"""Ensure responses aren't cached"""
response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
response.headers["Expires"] = 0
response.headers["Pragma"] = "no-cache"
return response
def login_required(f):
"""
Decorate routes to require login.
https://flask.palletsprojects.com/en/1.1.x/patterns/viewdecorators/
"""
@wraps(f)
def decorated_function(*args, **kwargs):
if session.get("user_id") is None:
return redirect("/login")
return f(*args, **kwargs)
return decorated_function
STATES=["Andhra Pradesh","Arunachal Pradesh ","Assam","Bihar","Chhattisgarh","Goa","Gujarat","Haryana","Himachal Pradesh","Jammu and Kashmir","Jharkhand","Karnataka","Kerala","Madhya Pradesh","Maharashtra","Manipur","Meghalaya","Mizoram","Nagaland","Odisha","Punjab","Rajasthan","Sikkim","Tamil Nadu","Telangana","Tripura","Uttar Pradesh","Uttarakhand","West Bengal","Andaman and Nicobar Islands","Chandigarh","Dadra and Nagar Haveli","Daman and Diu","Lakshadweep","National Capital Territory of Delhi","Puducherry"]
BLOODTYPES=["A+","A-","B+","B-","AB+","AB-","O+","O-","A1+","A1-","A2+","A2-","A1B+","A1B-","A2B+","A2B-"]
@app.route("/")
@login_required
def index():
return render_template("homepage.html")
@app.route("/register",methods=["GET","POST"])
@login_required
def register():
if request.method=="POST":
#ensure name was submitted
if not request.form.get("Name"):
return render_template("error.html",code=1)
#ensure age was submitted
if not request.form.get("Age"):
return render_template("error.html",code=2)
#ensure age is between 18 and 60
if int(request.form.get("Age"))<18 or int(request.form.get("Age"))>60:
return render_template("error.html",code=3)
#ensure city was submitted
if not request.form.get("City"):
return render_template("error.html",code=4)
#ensure phoneno was submitted
if not request.form.get("Phoneno"):
return render_template("error.html",code=5)
#ensure that the user has not already registered
rows=db.execute("SELECT * FROM registered WHERE Id=?",session["user_id"])
if(len(rows)!=0):
return render_template("error.html",code=6)
#register the user
db.execute("INSERT INTO registered(Id,Name,Age,City,State,Bloodtype,Phoneno)VALUES(?,?,?,?,?,?,?)", session["user_id"],request.form.get("Name"),request.form.get("Age"),request.form.get("City"),request.form.get("State"),request.form.get("Bloodtype"),request.form.get("Phoneno"))
return render_template("registered.html")
else:
return render_template("register.html",states=STATES,bloodtypes=BLOODTYPES)
@app.route("/locate")
@login_required
def locate():
INFO=db.execute("SELECT * FROM registered")
return render_template("locate.html",info=INFO,states=STATES,bloodtypes=BLOODTYPES)
@app.route("/myths")
@login_required
def myths():
return render_template("myths.html")
@app.route("/contact")
@login_required
def contact():
return render_template("contact.html")
@app.route("/condition")
@login_required
def condition():
return render_template("condition.html")
@app.route("/search")
@login_required
def search():
IN=db.execute("SELECT * FROM registered WHERE State = ? AND Bloodtype=?",request.args.get("searchstate"),request.args.get("searchblood"))
return render_template("search.html",information=IN)
@app.route("/info")
@login_required
def info():
return render_template("info.html")
@app.route("/signup",methods=["GET","POST"])
def signup():
if request.method=="POST":
#ensure username was provided
if not request.form.get("username"):
return render_template("errorlogsign.html",code=1)
#ensure password was submitted
elif not request.form.get("password"):
return render_template("errorlogsign.html",code=2)
#ensure that the username and password doesn't already exists
rows=db.execute("SELECT * FROM signup WHERE username = ?",request.form.get("username"))
if len(rows)!=0:
return render_template("errorlogsign.html",code=4)
#signup the user
db.execute("INSERT INTO signup(Username,hash)VALUES(?,?)",request.form.get("username"),generate_password_hash(request.form.get("password")))
#log the user in
rows=db.execute("SELECT * FROM signup WHERE username=?",request.form.get("username"))
session["user_id"]=rows[0]["Id"]
# Redirect user to home page
return redirect("/")
else:
return render_template("signup.html")
@app.route("/login", methods=["GET","POST"])
def login():
# Forget any user_id
session.clear()
if request.method=="POST":
#ensure username was provided
if not request.form.get("username"):
return render_template("errorlogsign.html",code=1)
#ensure password was submitted
elif not request.form.get("password"):
return render_template("errorlogsign.html",code=2)
# Query database for username
rows = db.execute("SELECT * FROM signup WHERE Username = ?", request.form.get("username"))
# Ensure username exists and password is correct
if len(rows) != 1 or not check_password_hash(rows[0]["hash"], request.form.get("password")):
return render_template("errorlogsign.html",code=3)
# Remember which user has logged in
session["user_id"] = rows[0]["Id"]
# Redirect user to home page
return redirect("/")
else:
return render_template("login.html")
@app.route("/logout")
@login_required
def logout():
"""Log user out"""
# Forget any user_id
session.clear()
# Redirect user to login form
return redirect("/")
@app.route("/deregister")
@login_required
def deregister():
rows=db.execute("SELECT * FROM registered WHERE Id=?",session["user_id"])
if(len(rows)==0):
return render_template("error.html",code=8)
db.execute("DELETE FROM registered WHERE Id=?",session["user_id"])
return render_template("error.html",code=7)