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app.py
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app.py
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from flask import Flask, render_template, redirect, url_for, request, session, flash, send_file
import sqlite3
from forms import PostForm, RegistrationForm, UserLoginForm, AdminLoginForm
from werkzeug.utils import secure_filename
from werkzeug.security import check_password_hash, generate_password_hash
from datetime import datetime
import os
import sqlite3
import io
import sympy as sp
import re
import json
app = Flask(__name__)
app.config['SECRET_KEY'] = 'saim2024@stella'
# Define the upload folder
UPLOAD_FOLDER = 'C:\\Users\\SAIM\\Documents\\User_Datas'
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
# Ensure the upload folder exists
os.makedirs(UPLOAD_FOLDER, exist_ok=True)
# Function to create a connection to the SQLite database
def get_db_connection():
conn = sqlite3.connect('site.db')
conn.row_factory = sqlite3.Row
return conn
#Math solver
# Example validation function for expressions
def validate_expression(expression):
# Ensure expression only contains allowed characters
if not re.match(r'^[\w\s\.\*\+\-\^\/\(\)\[\]\{\}\,\=;]*$', expression):
raise ValueError("Invalid characters in expression.")
return expression
def is_logged_in():
return 'user_id' in session
def is_admin_logged_in():
return session.get('admin_id') is not None
@app.route('/register', methods=['GET', 'POST'])
def register():
if 'user_id' in session:
flash('You are logged in!You have to log out to register a new account.')
return redirect(url_for('home'))
form = RegistrationForm()
if form.validate_on_submit():
filename = secure_filename(form.image.data.filename)
filepath = os.path.join(app.config['UPLOAD_FOLDER'], filename)
form.image.data.save(filepath)
conn = get_db_connection()
hashed_password = generate_password_hash(form.password.data, method='pbkdf2:sha256')
conn.execute('INSERT INTO registrations (name, phone, email, school, image, password) VALUES (?, ?, ?, ?, ?, ?)',
(form.name.data, form.phone.data, form.email.data, form.school.data, filepath, hashed_password))
conn.commit()
conn.close()
flash('Registration successful!', 'success')
return redirect(url_for('login'))
return render_template('register.html', form=form)
@app.route('/get_image/<int:user_id>')
def get_image(user_id):
conn = get_db_connection()
user = conn.execute('SELECT * FROM registrations WHERE id = ?', (user_id,)).fetchone()
conn.close()
return send_file(io.BytesIO(user['image']), mimetype='image/jpeg')
@app.route('/profile', methods=['GET', 'POST'])
def user_profile():
if 'user_id' not in session:
flash('You must be logged in to access this page.', 'warning')
return redirect(url_for('login'))
form = RegistrationForm()
if form.validate_on_submit():
print("Form validated and submitted")
print(f"Form data: name={form.name.data}, phone={form.phone.data}, school={form.school.data}")
try:
conn = get_db_connection()
conn.execute('UPDATE registrations SET name = ?, phone = ?, school = ? WHERE id = ?',
(form.name.data, form.phone.data, form.school.data, session['user_id']))
conn.commit()
conn.close()
flash('Your profile has been updated successfully.', 'success')
return redirect(url_for('user_profile'))
except sqlite3.Error as e:
conn.rollback()
print(f"Database error: {e}")
flash('An error occurred while updating your profile. Please try again.', 'danger')
else:
if request.method == 'POST':
print(f"Form validation failed with errors: {form.errors}")
else:
print("Form not submitted")
conn = get_db_connection()
user = conn.execute('SELECT * FROM registrations WHERE id = ?', (session['user_id'],)).fetchone()
conn.close()
form.name.data = user['name']
form.phone.data = user['phone']
form.email.data = user['email']
form.school.data = user['school']
image_path = user['image']
image_filename = os.path.basename(image_path)
return render_template('user_profile.html', form=form, user=user, image_filename=image_filename)
@app.route('/login', methods=['GET', 'POST'])
def login():
form = UserLoginForm()
if form.validate_on_submit():
conn = get_db_connection()
user = conn.execute('SELECT * FROM registrations WHERE email = ?', (form.email.data,)).fetchone()
conn.close()
if user and (user['password'], form.password.data):
session['user_id'] = user['id']
flash('User login successful!', 'success')
return redirect(url_for('home'))
else:
flash('Invalid email or password. Please try again.', 'error')
elif 'admin_id' in session:
flash('You already logged in as admin!')
return redirect(url_for('home'))
elif 'user_id' in session:
flash('You already logged in as user!')
return redirect(url_for('home'))
return render_template('login.html', form=form)
@app.route('/admin/login', methods=['GET', 'POST'])
def admin_login():
form = AdminLoginForm()
if form.validate_on_submit():
conn = get_db_connection()
user = conn.execute('SELECT * FROM admins WHERE email = ?', (form.email.data,)).fetchone()
conn.close()
if user and (user['password'], form.password.data):
session['admin_id'] = user['id']
flash('Admin login successful!', 'success')
return redirect(url_for('home'))
else:
flash('Invalid email or password. Please try again.', 'error')
elif 'admin_id' in session:
flash('You already logged in as admin!')
return redirect(url_for('home'))
elif 'user_id' in session:
flash('You already logged in as user!')
return redirect(url_for('home'))
return render_template('admin_login.html', form=form)
@app.route('/admin/dashboard', methods=['GET'])
def admin_dashboard():
if 'admin_id' not in session:
flash('You are not authorized for this page!')
return redirect(url_for('login'))
conn = get_db_connection()
posts = conn.execute('SELECT * FROM posts').fetchall()
conn.close()
return render_template('dashboard.html', posts=posts)
@app.route('/logout')
def logout():
session.pop('user_id', None)
# session.pop('admin_id', None)
if (session.pop('admin_id', None)) :
return redirect(url_for('admin_login'))
else:
flash('You are not logged in yet!Log in.')
return redirect(url_for('login'))
@app.route('/post/new', methods=['GET', 'POST'])
def new_post():
if 'admin_id' not in session:
return redirect(url_for('admin_login'))
form = PostForm()
if form.validate_on_submit():
author_name = request.form.get('author')
category = form.category.data
conn = get_db_connection()
conn.execute('INSERT INTO posts (title, content, author, category) VALUES (?, ?, ?, ?)',
(form.title.data, form.content.data, author_name, category))
conn.commit()
conn.close()
return redirect(url_for('new_post'))
return render_template('add_post.html', form=form)
@app.route('/post/<int:post_id>/edit', methods=['GET', 'POST'])
def edit_post(post_id):
if 'admin_id' not in session:
flash('You are not authorized for this action!')
return redirect(url_for('home'))
if session.get('admin_id'):
conn = get_db_connection()
post = conn.execute('SELECT * FROM posts WHERE id = ?', (post_id,)).fetchone()
conn.close()
form = PostForm()
if form.validate_on_submit():
conn = get_db_connection()
conn.execute('UPDATE posts SET title = ?, content = ? WHERE id = ?', (form.title.data, form.content.data, post_id))
conn.commit()
conn.close()
return redirect(url_for('home'))
elif request.method == 'GET':
form.title.data = post['title']
form.content.data = post['content']
return render_template('edit_post.html', form=form)
else:
flash('You are not authorized to perform this action.', 'danger')
return redirect(url_for('home'))
@app.route('/post/<int:post_id>/delete', methods=['POST'])
def delete_post(post_id):
if 'admin_id' not in session:
return redirect(url_for('admin_login'))
if session.get('admin_id'):
conn = get_db_connection()
conn.execute('DELETE FROM posts WHERE id = ?', (post_id,))
conn.commit()
conn.close()
return redirect(url_for('admin_dashboard'))
else:
flash('You are not authorized to perform this action.', 'danger')
return redirect(url_for('home'))
@app.route('/list/posts')
def list_posts():
if 'admin_id' not in session:
flash('You are not authorized to view this page.', 'danger')
return redirect(url_for('home'))
if not session.get('admin_id'):
flash('You are not authorized to view this page.', 'danger')
return redirect(url_for('home'))
conn = get_db_connection()
posts = conn.execute('SELECT * FROM posts').fetchall()
conn.close()
return render_template('list_posts.html', posts=posts)
@app.route('/category/<string:category>')
def category_posts(category):
conn = get_db_connection()
posts = conn.execute('SELECT * FROM posts WHERE category = ?', (category,)).fetchall()
conn.close()
return render_template('category_posts.html', posts=posts, category=category)
@app.route('/', methods=['GET'])
def home():
conn = get_db_connection()
search_query = request.args.get('q')
per_page = 12
if search_query:
# Handle search query
query = "SELECT COUNT(*) FROM posts WHERE title LIKE ? OR content LIKE ?"
total_posts = conn.execute(query, (f'%{search_query}%', f'%{search_query}%')).fetchone()[0]
else:
# Get total number of posts
query = 'SELECT COUNT(*) FROM posts'
total_posts = conn.execute(query).fetchone()[0]
total_pages = (total_posts + per_page - 1) // per_page
page = request.args.get('page', 1, type=int)
offset = (page - 1) * per_page
if search_query:
# Fetch posts for search query
query = "SELECT * FROM posts WHERE title LIKE ? OR content LIKE ? ORDER BY id DESC LIMIT ? OFFSET ?"
posts = conn.execute(query, (f'%{search_query}%', f'%{search_query}%', per_page, offset)).fetchall()
conn.close()
return render_template('search.html', posts=posts, query=search_query, page=page, total_pages=total_pages)
else:
# Fetch posts for home page
posts = conn.execute('SELECT * FROM posts ORDER BY id DESC LIMIT ? OFFSET ?', (per_page, offset)).fetchall()
conn.close()
return render_template('home.html', posts=posts, page=page, total_pages=total_pages)
@app.route('/about')
def about():
return render_template('about.html')
@app.route('/contact', methods=['GET', 'POST'])
def contact():
if request.method == 'POST':
name = request.form['name']
email = request.form['email']
message = request.form['message']
conn = get_db_connection()
conn.execute('INSERT INTO contacts (name, email, message) VALUES (?, ?, ?)', (name, email, message))
conn.commit()
conn.close()
flash('Your message has been sent successfully!', 'success')
return render_template('contact.html')
@app.route('/post/<int:post_id>', methods=['GET', 'POST'])
def post(post_id):
conn = get_db_connection()
if request.method == 'POST':
if 'comment' in request.form:
# Handle new comment submission
name = request.form['name']
comment_text = request.form['comment']
conn.execute('''
INSERT INTO comments (post_id, name, text) VALUES (?, ?, ?)
''', (post_id, name, comment_text))
conn.commit()
elif 'reply' in request.form:
# Handle new reply submission
comment_id = request.form['comment_id']
name = request.form['name']
reply_text = request.form['reply']
conn.execute('''
INSERT INTO replies (comment_id, name, text) VALUES (?, ?, ?)
''', (comment_id, name, reply_text))
conn.commit()
return redirect(url_for('post', post_id=post_id))
# Fetch the main post details
post = conn.execute('SELECT * FROM posts WHERE id = ?', (post_id,)).fetchone()
# Fetch comments associated with the post
comments = conn.execute('SELECT * FROM comments WHERE post_id = ? ORDER BY timestamp ASC', (post_id,)).fetchall()
# Fetch replies associated with each comment
comment_replies = {}
for comment in comments:
replies = conn.execute('SELECT * FROM replies WHERE comment_id = ? ORDER BY timestamp ASC', (comment['id'],)).fetchall()
comment_replies[comment['id']] = replies
conn.close()
return render_template('post.html', post=post, comments=comments, comment_replies=comment_replies)
@app.route('/delete_comment/<int:comment_id>', methods=['POST'])
def delete_comment(comment_id):
if 'admin_id' not in session:
return redirect(url_for('login')) # Ensure the user is an admin
conn = get_db_connection()
conn.execute('DELETE FROM comments WHERE id = ?', (comment_id,))
conn.commit()
conn.close()
post_id = request.form['post_id']
return redirect(url_for('post', post_id=post_id))
@app.route('/delete_reply/<int:reply_id>', methods=['POST'])
def delete_reply(reply_id):
if 'admin_id' not in session:
return redirect(url_for('login')) # Ensure the user is an admin
conn = get_db_connection()
conn.execute('DELETE FROM replies WHERE id = ?', (reply_id,))
conn.commit()
conn.close()
post_id = request.form['post_id']
return redirect(url_for('post', post_id=post_id))
@app.route('/block_user/<int:user_id>', methods=['POST'])
def block_user(user_id):
if 'admin_id' not in session:
return redirect(url_for('login')) # Ensure the user is an admin
conn = get_db_connection()
conn.execute('UPDATE users SET blocked = 1 WHERE id = ?', (user_id,))
conn.commit()
conn.close()
post_id = request.form['post_id']
return redirect(url_for('post', post_id=post_id))
#Math solver main codes
@app.route('/math_solver')
def math_solver():
if 'admin_id' in session:
return render_template('math_solver.html')
if 'user_id' not in session:
flash('You must be logged in to access this feature.', 'warning')
return redirect(url_for('login'))
return render_template('math_solver.html')
@app.route('/solve', methods=['POST'])
def solve():
# return render_template('index.html')
try:
operation = request.form['operation']
expression = request.form['expression']
variable = request.form.get('variable', 'x')
var = sp.symbols(variable)
# Validate expression
expression = validate_expression(expression)
if operation == 'solve':
solutions = sp.solve(expression, var)
result = format_solutions(solutions)
elif operation == 'differentiate':
derivative = sp.diff(expression, var)
result = sp.pretty(derivative, use_unicode=False)
elif operation == 'integrate':
integral = sp.integrate(expression, var)
result = sp.pretty(integral, use_unicode=False)
result = str(result) # Convert SymPy expression to string
elif operation == 'simplify':
simplified_expr = sp.simplify(expression)
result = sp.pretty(simplified_expr, use_unicode=False)
elif operation == 'diff_eq':
y = sp.Function('y')(var)
diff_eq = sp.Eq(sp.diff(y, var, 2) - y, 0)
solutions = sp.dsolve(diff_eq)
result = format_solution(solutions)
elif operation == 'matrix':
matrix = sp.Matrix(eval(expression))
matrix_operation = request.form['matrix_operation']
if matrix_operation == 'inverse':
result = sp.pretty(matrix.inv(), use_unicode=False)
elif matrix_operation == 'determinant':
result = sp.pretty(matrix.det(), use_unicode=False)
elif matrix_operation == 'eigenvalues':
result = sp.pretty(matrix.eigenvals(), use_unicode=False)
else:
result = 'Invalid matrix operation'
elif operation == 'limit':
limit_value = request.form.get('limit_value', '0')
limit = sp.limit(expression, var, limit_value)
result = sp.pretty(limit, use_unicode=False)
elif operation == 'series':
series_order = int(request.form.get('series_order', '6'))
series_expansion = sp.series(expression, var, n=series_order).removeO()
result = sp.pretty(series_expansion, use_unicode=False)
elif operation == 'sys_eq':
# Split equations by ';' and remove any leading/trailing whitespace
equations = [eq.strip() for eq in expression.split(';')]
system_eqs = [sp.sympify(eq) for eq in equations]
solutions = sp.linsolve(system_eqs, var)
result = format_solution(solutions)
elif operation == 'taylor_series':
taylor_order = int(request.form.get('taylor_order', '4'))
taylor_series = sp.series(expression, var, n=taylor_order).removeO()
result = sp.pretty(taylor_series, use_unicode=False)
elif operation == 'partial_fraction':
partial_frac = sp.apart(expression, var)
result = sp.pretty(partial_frac, use_unicode=False)
elif operation == 'surface_integral':
# Perform surface integral
a1, b1 = float(request.form.get('a1', '0')), float(request.form.get('b1', '1'))
a2, b2 = float(request.form.get('a2', '0')), float(request.form.get('b2', '1'))
surface_integral = sp.integrate(expression, (var[0], a1, b1), (var[1], a2, b2))
result = sp.pretty(surface_integral, use_unicode=False)
elif operation == 'line_integral':
# Perform line integral
a, b = float(request.form.get('a', '0')), float(request.form.get('b', '1'))
line_integral = sp.integrate(expression, (var, a, b))
result = sp.pretty(line_integral, use_unicode=False)
elif operation == 'volume_integral':
# Perform volume integral
a1, b1 = float(request.form.get('a1', '0')), float(request.form.get('b1', '1'))
a2, b2 = float(request.form.get('a2', '0')), float(request.form.get('b2', '1'))
a3, b3 = float(request.form.get('a3', '0')), float(request.form.get('b3', '1'))
volume_integral = sp.integrate(expression, (var[0], a1, b1), (var[1], a2, b2), (var[2], a3, b3))
result = sp.pretty(volume_integral, use_unicode=False)
elif operation == 'parametric_surface':
# Calculate area of parametric surface
t = sp.symbols('t')
x = sp.Function('x')(t)
y = sp.Function('y')(t)
z = sp.Function('z')(t)
surface_expr = (x, y, z)
area = sp.integrate(sp.sqrt(sum(sp.diff(s, t)**2 for s in surface_expr)), (t, a, b))
result = sp.pretty(area, use_unicode=False)
elif operation == 'gradient':
# Calculate gradient of a scalar field
gradient = sp.Matrix([sp.diff(expression, var) for var in var])
result = sp.pretty(gradient, use_unicode=False)
elif operation == 'divergence':
# Calculate divergence of a vector field
divergence = sum(sp.diff(expression[i], var[i]) for i in range(len(var)))
result = sp.pretty(divergence, use_unicode=False)
elif operation == 'curl':
# Calculate curl of a vector field
curl = sp.Matrix([
sp.diff(expression[2], var[1]) - sp.diff(expression[1], var[2]),
sp.diff(expression[0], var[2]) - sp.diff(expression[2], var[0]),
sp.diff(expression[1], var[0]) - sp.diff(expression[0], var[1])
])
result = sp.pretty(curl, use_unicode=False)
else:
result = 'Invalid operation'
return render_template('result.html', operation=operation, expression=expression, result=result)
# return render_template('index.html')
except ValueError as ve:
error_message = f"ValueError: {str(ve)}"
return render_template('error.html', error_message=error_message)
except Exception as e:
error_message = f"Error: {str(e)}"
return render_template('error.html', error_message=error_message)
def format_solutions(solutions):
if isinstance(solutions, list):
return ', '.join([str(sol) for sol in solutions])
else:
return str(solutions)
def format_solution(solution):
if isinstance(solution, sp.Eq):
return f"{solution.lhs} = {solution.rhs}"
else:
return str(solution)
#Math solver main codes
@app.route('/pallindrome')
def pallindrome():
if 'admin_id' in session:
return render_template('pallindrome.html')
if 'user_id' not in session:
flash('You must be logged in to access this feature.', 'warning')
return redirect(url_for('login'))
return render_template('pallindrome.html')
@app.route('/pallindrome_result', methods=['POST'])
def palli_check():
inputs = request.form['inputs'].lower()
# if inputs == inputs[:-1]:
# x = print("This is a pallindrome.")
# else:
# x = print("This is not a pallindrome.")
return render_template('pallindrome_result.html', inputs=inputs)
@app.route('/age')
def age():
if 'admin_id' in session:
return render_template('age_calc.html')
if 'user_id' not in session:
flash('You have to logged in to access this feature!', 'warning')
return redirect(url_for('login'))
return render_template('age.html')
@app.route('/age_calc', methods=['POST'])
def age_calc():
year = int(request.form['year'])
month = int(request.form['month'])
day = int(request.form['day'])
current_date = datetime.now()
birth_date = datetime(year, month, day)
# Calculate difference between current date and birth date
delta = current_date - birth_date
# Calculate years, months, and days
age_years = current_date.year - birth_date.year
if (current_date.month, current_date.day) < (birth_date.month, birth_date.day):
age_years -= 1
age_months = current_date.month - birth_date.month
if current_date.day < birth_date.day:
age_months -= 1
if age_months < 0:
age_months += 12
age_days = (current_date - birth_date.replace(year=current_date.year, month=current_date.month)).days
if age_days < 0:
previous_month = current_date.month - 1 if current_date.month > 1 else 12
previous_year = current_date.year if current_date.month > 1 else current_date.year - 1
previous_month_date = datetime(previous_year, previous_month, birth_date.day)
age_days = (current_date - previous_month_date).days
age_weeks = delta.days // 7
remaining_days = delta.days % 7
# Calculate hours, minutes, and seconds
age_hours = delta.total_seconds() // 3600
age_minutes = delta.total_seconds() // 60
age_seconds = delta.total_seconds()
return render_template(
'age_calc.html',
year=year, month=month, day=day,
age_years=age_years, age_months=age_months, age_days=age_days, age_weeks=age_weeks,
age_hours=int(age_hours), age_minutes=int(age_minutes), age_seconds=int(age_seconds)
)
if __name__ == '__main__':
app.run(debug=True)