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app.py
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197 lines (170 loc) · 7.48 KB
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#!/usr/bin/python
from flask import Flask, render_template, redirect, url_for, flash, request, session, logging
from wtforms import Form, PasswordField, StringField, validators
from flask_mysqldb import MySQL
from passlib.hash import sha256_crypt
from functools import wraps
app = Flask(__name__)
#Config MySQL
app.config['MYSQL_HOST'] = 'localhost'
app.config['MYSQL_USER'] = 'root'
app.config['MYSQL_PASSWORD'] = '123456'
app.config['MYSQL_DB'] = 'messenger'
app.config['MYSQL_CURSORCLASS'] = 'DictCursor'
#init MySQL
mysql = MySQL(app)
#checks whether the user is logged in or not
def is_logged_in(f):
@wraps(f)
def wrap(*args, **kwargs):
if 'logged_in' in session:
return f(*args, **kwargs)
else:
flash('Unauthorized, Please log in', 'danger')
return redirect(url_for('login'))
return wrap
@app.route('/logout')
def logout():
session.clear()
flash('You are now logged out', 'success')
return redirect(url_for('login'))
@app.route('/')
@app.route('/home')
@is_logged_in
def home():
return render_template('home.html', user=session['username'])
# @app.route('/')
# @app.route('/home')
# # @is_logged_in
# def home(logg):
# if logg:
# user = session['username']
# else:
# user = "ASDF"
# return render_template('home.html', user=user)
class RegisterForm(Form):
firstname = StringField('First Name', [validators.Length(min=1, max=30), validators.DataRequired()])
lastname = StringField('Last Name', [validators.Length(min=1, max=30), validators.DataRequired()])
email = StringField('Email', [validators.Email(message="Check your email again."), validators.DataRequired()])
username = StringField('Username', [validators.Length(min=3, max=30), validators.DataRequired()])
password = PasswordField('Password', [validators.DataRequired(), validators.equal_to('confirm', message="Password does not match")])
confirm = PasswordField('Confirm Password')
@app.route('/register', methods=['GET', 'POST'])
def register():
form = RegisterForm(request.form)
if request.method == 'POST' and form.validate():
firstname = form.firstname.data
lastname = form.lastname.data
email = form.email.data
username = form.username.data
password = sha256_crypt.encrypt(str(form.password.data))
cur = mysql.connection.cursor()
cur.execute("INSERT INTO users(firstname, lastname, email, username, password) VALUES(%s, %s, %s, %s, %s)", (firstname, lastname, email, username, password))
mysql.connection.commit()
cur.close()
flash('You are now registered and can log in', 'success')
return redirect(url_for('login'))
return render_template('register.html', form=form)
class LoginForm(Form):
username = StringField('Username', [validators.Length(min=1, max=30, message="Check yoyr username once again.")])
password = PasswordField('Password', [validators.DataRequired(message="Enter password")])
@app.route('/login', methods=['GET', 'POST'])
def login():
form = LoginForm(request.form)
if request.method == 'POST' and form.validate():
username = form.username.data
candidate_password = form.password.data
cur = mysql.connection.cursor()
result = cur.execute("SELECT * FROM users WHERE username= %s", [username])
if result>0:
data = cur.fetchone()
password = data['password']
if sha256_crypt.verify(candidate_password, password):
session['logged_in'] = True
session['username'] = username
flash('You are now logged in', 'success')
return redirect(url_for('home'))
else:
error = "Password is wrong"
return render_template('login.html', error=error, form=form) #as
cur.close()
else:
error = "Username not found. Enter correct username or register"
return render_template('login.html', error=error, form=form) #as
return render_template('login.html', form=form)
class MessageForm(Form):
msgg = StringField('', [validators.Length(min=1, max=300, message="Message must be of length 1 to 300.")])
@app.route('/messages/<string:sender>/<string:receiver>/', methods=['GET', 'POST'])
@is_logged_in
def messages(sender,receiver):
if session['username'] == sender and (sender != receiver):
form = MessageForm(request.form)
friend = receiver
cur = mysql.connection.cursor()
cur.execute("SELECT * FROM users WHERE username = %s", [sender])
sen = cur.fetchone()
#sender's id
sen_id = sen['id']
cur.execute("SELECT * FROM users WHERE username = %s", [receiver])
rec = cur.fetchone()
#receiver's id
rec_id = rec['id']
mysql.connection.commit()
cur.close()
if request.method == 'POST' and form.validate():
msgg = form.msgg.data
cur = mysql.connection.cursor()
cur.execute("INSERT INTO messages(senderid, receiverid, message) VALUES(%s, %s, %s)",(sen_id, rec_id, msgg))
mysql.connection.commit()
cur.close()
return redirect(url_for('messages', sender=sender, receiver=receiver))
cur = mysql.connection.cursor()
result = cur.execute("SELECT * FROM messages WHERE (senderid = %s AND receiverid = %s) OR (senderid = %s AND receiverid = %s) ORDER BY message_time ASC", [sen_id, rec_id, rec_id, sen_id])
msgs = cur.fetchall()
if result>0:
return render_template('messages.html', msgs=msgs, friend=friend, sen_id=sen_id, rec_id=rec_id, form=form, user = session['username'])
else:
flash('Start a new conversation.', 'info')
return render_template('messages.html', friend=friend, form=form, user = session['username'])
cur.close()
else:
err = "You can't access this page."
return render_template('messages.html', error=err, user = session['username'])
@app.route('/messages/<string:sender>/')
@is_logged_in
def allchats(sender):
if session['username'] == sender:
chats = []
cur = mysql.connection.cursor()
cur.execute("SELECT * FROM users WHERE username = %s", [sender])
unique = cur.fetchone()
uniqueid = unique['id']
#creating list of all ids of chats
cur.execute("SELECT * FROM messages WHERE senderid = %s", [uniqueid])
chatsa = cur.fetchall()
for x in chatsa:
chats.append(x['receiverid'])
cur.execute("SELECT * FROM messages WHERE receiverid = %s", [uniqueid])
chatsb = cur.fetchall()
for x in chatsb:
chats.append(x['senderid'])
chats = list(set(chats))
#creating a list of all usernames of chats
names= []
for chat in chats:
cur.execute("SELECT * FROM users WHERE id = %s", [chat])
name_a = cur.fetchone()
name_b = name_a['username']
names.append(name_b)
names.sort()
l = len(names)
if l>0:
return render_template('allchats.html', names = names, user = session['username'])
flash('You have no chats. Start a new one here.', 'info')
return render_template('allchats.html', user = session['username'])#test
else:
err = "You can't access this page."
return render_template('allchats.html', error=err, user = session['username'])
if __name__ == '__main__':
app.secret_key='secret123'
app.run(debug=True)