def test_get_close_db(app):
with app.app_context():
db = get_db()
assert db is get_db()
with pytest.raises(sqlite3.ProgrammingError) as e:
db.execute('SELECT 1')
assert 'closed' in str(e.value)
def app():
db_fd, db_path = tempfile.mkstemp()
app = create_app({
'TESTING': True,
'DATABASE': db_path,
})
with app.app_context():
init_db()
get_db().executescript(_data_sql)
yield app
os.close(db_fd)
os.unlink(db_path)
def register():
"""Register a new user.
Validates that the username is not already taken. Hashes the
password for security.
"""
if request.method == "POST":
username = request.form["username"]
password = request.form["password"]
db = get_db()
error = None
if not username:
error = "Username is required."
elif not password:
error = "Password is required."
elif (db.execute("SELECT id FROM user WHERE username = ?",
(username, )).fetchone() is not None):
error = f"User {username} is already registered."
if error is None:
# the name is available, store it in the database and go to
# the login page
db.execute(
"INSERT INTO user (username, password) VALUES (?, ?)",
(username, generate_password_hash(password)),
)
db.commit()
return redirect(url_for("auth.login"))
flash(error)
return render_template("auth/register.html")
def index():
db = get_db()
posts = db.execute(
'SELECT p.id, title, body, created, author_id, username'
' FROM post p JOIN user u ON p.author_id = u.id'
' ORDER BY created DESC'
).fetchall()
return render_template('blog/index.html', posts=posts)
def load_logged_in_user():
user_id = session.get('user_id')
print(f'USER ID INFO - {user_id}')
if user_id is None:
g.user = None
else:
g.user = get_db().execute('SELECT * FROM user WHERE id = ?',
(user_id, )).fetchone()
def test_create(client, auth, app):
auth.login()
assert client.get('/create').status_code == 200
client.post('/create', data={'title': 'created', 'body': ''})
with app.app_context():
db = get_db()
count = db.execute('SELECT COUNT(id) FROM post').fetchone()[0]
assert count == 2
def test_update(client, auth, app):
auth.login()
assert client.get('/1/update').status_code == 200
client.post('/1/update', data={'title': 'updated', 'body': ''})
with app.app_context():
db = get_db()
post = db.execute('SELECT * FROM post WHERE id = 1').fetchone()
assert post['title'] == 'updated'
def test_delete(client, auth, app):
auth.login()
response = client.post('/1/delete')
assert response.headers['Location'] == 'http://localhost/'
with app.app_context():
db = get_db()
post = db.execute('SELECT * FROM post WHERE id = 1').fetchone()
assert post is None
def load_logged_in_user():
"""If a user id is stored in the session, load the user object from
the database into ``g.user``."""
user_id = session.get("user_id")
if user_id is None:
g.user = None
else:
g.user = (get_db().execute("SELECT * FROM user WHERE id = ?",
(user_id, )).fetchone())
def test_author_required(app, client, auth):
with app.app_context():
db = get_db()
db.execute('UPDATE post SET author_id = 2 WHERE id = 1')
db.commit()
auth.login()
assert client.post('/1/update').status_code == 403
assert client.post('/1/delete').status_code == 403
assert b'href="/1/update"' not in client.get('/').data
def test_register(client, app):
assert client.get('/auth/register').status_code == 200
response = client.post('/auth/register',
data={
'username': '******',
'password': '******'
})
assert 'http://localhost/auth/login' == response.headers['Location']
with app.app_context():
assert get_db().execute(
"select * from user where username = '******'", ).fetchone() is not None
def get_post(id, check_author=True):
post = get_db().execute(
'SELECT p.id, title, body, created, author_id, username'
' FROM post p JOIN user u ON p.author_id = u.id'
' WHERE p.id = ?',
(id,)
).fetchone()
if post is None:
abort(404, f"Post id {id} doesn't exist.")
if check_author and post['author_id'] != g.user['id']:
abort(403)
return post
def login():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
db = get_db()
error = None
user = db.execute('SELECT * FROM user WHERE username = ?',
(username, )).fetchone()
if user is None:
error = 'Incorrect username'
elif not check_password_hash(user['password'], password):
error = 'Incorrect password'
if error is None:
session.clear()
session['user_id'] = user['id']
return redirect(url_for('index'))
flash(error)
return render_template('auth/login.html')
def create():
if request.method == 'POST':
title = request.form['title']
body = request.form['body']
error = None
if not title:
error = 'Title is required.'
if error is not None:
flash(error)
else:
db = get_db()
db.execute(
'INSERT INTO post (title, body, author_id)'
' VALUES (?, ?, ?)',
(title, body, g.user['id'])
)
db.commit()
return redirect(url_for('blog.index'))
return render_template('blog/create.html')
def update(id):
post = get_post(id)
if request.method == 'POST':
title = request.form['title']
body = request.form['body']
error = None
if not title:
error = 'Title is required'
if error is not None:
flash(error)
else:
db = get_db()
db.execute(
'UPDATE post SET title = ?, body = ?'
' WHERE id = ?',
(title, body, id)
)
db.commit()
return redirect(url_for('blog.index'))
return render_template('blog/update.html', post=post)
def login():
"""Log in a registered user by adding the user id to the session."""
if request.method == "POST":
username = request.form["username"]
password = request.form["password"]
db = get_db()
error = None
user = db.execute("SELECT * FROM user WHERE username = ?",
(username, )).fetchone()
if user is None:
error = "Incorrect username."
elif not check_password_hash(user["password"], password):
error = "Incorrect password."
if error is None:
# store the user id in a new session and return to the index
session.clear()
session["user_id"] = user["id"]
return redirect(url_for("index"))
flash(error)
return render_template("auth/login.html")
def register():
if request.method == 'POST':
username = request.form['username']
password = request.form['password']
db = get_db()
error = None
if not username:
error = 'Username is required'
elif not password:
error = 'Password is required'
elif db.execute('SELECT id FROM user WHERE username = ?',
(username, )).fetchone() is not None:
error = f'User {username} is already registered'
if error is None:
db.execute('INSERT INTO user (username, password) VALUES (?, ?)',
(username, generate_password_hash(password)))
db.commit()
return redirect(url_for('auth.login'))
flash(error)
return render_template('auth/register.html')
def delete(id):
get_post(id)
db = get_db()
db.execute('DELETE FROM post WHERE id = ?', (id,))
db.commit()
return redirect(url_for('blog.index'))
