def payment_completed(order_id):
"""
Task to send an e-mail notification when an order is
successfully created.
"""
try:
order = Order.objects.get(id=order_id)
# create invoice e-mail
subject = f'My Shop - EE Invoice no. {order.id}'
message = 'Please, find attached the invoice for your recent purchase.'
email = EmailMessage(subject, message,
settings.EMAIL_HOST_USER + '@gmail.com',
[order.email])
# generate PDF
html = render_to_string('orders/order/pdf.html', {'order': order})
out = BytesIO()
stylesheets = [weasyprint.CSS(settings.STATIC_ROOT + 'css/pdf.css')]
weasyprint.HTML(string=html).write_pdf(out, stylesheets=stylesheets)
# attach PDF file
email.attach(f'order_{order.id}.pdf', out.getvalue(),
'application/pdf')
# send e-mail
email.send()
except Exception as e:
logger.error(
f"payment_completed task send_mail failed: order_id={order_id}")
raise e
def ssh_execute(command):
try:
stdin, stdout, stderr = ssh.exec_command(command)
except Exception as error:
logger.error(error)
return [out.replace("\n", '') for out in stdout.readlines()
], [err.replace("\n", '') for err in stderr.readlines()]
def execute(cmd, shell=True):
run = None
try:
run = subprocess.Popen(cmd,
shell=shell,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True)
output = run.stdout.read().rstrip().split("\n")
except subprocess.CalledProcessError:
error = run.stderr.read().rstrip().split("\n")
logger.error(error)
return error
return output
def order_created(order_id):
"""
Task to send an e-mail notification when an order is
successfully created.
"""
try:
order = Order.objects.get(id=order_id)
subject = f'Order nr. {order.id}'
message = f'Dear {order.first_name},\n\n' \
f'You have successfully placed an order.' \
f'Your order ID is {order.id}.'
send_mail(subject, message, settings.EMAIL_HOST_USER + '@gmail.com',
[order.email])
except Exception as e:
logger.error(
f"order_created task send_mail failed: order_id={order_id}")
raise e
def send_notification_to_followers_task(duration, obj_id):
from blog.models import Post
obj = Post.objects.get(id=int(obj_id))
subject = f'New post in {obj.blog.title}'
message = f'Hello new post link:{domain}{obj.get_absolute_url()}'
is_task_completed = False
error = ''
receivers = []
for follower in obj.blog.follower_set.all():
receivers.append(follower.user.email)
try:
time.sleep(duration)
is_task_completed = True
except Exception as err:
error = str(err)
logger.error(error)
if is_task_completed:
send_mail_to(subject, message, receivers)
else:
send_mail_to(subject, error, receivers)
return ('send_notification_to_followers_task done')
def ssh_connect(host, user, key):
private_key = paramiko.RSAKey.from_private_key(io.StringIO(key))
try:
ssh.connect(host, username=user, pkey=private_key)
except Exception as error:
logger.error(error)