InformIT eBook Deal of the Day Mailinator

informit.py

#!venv/bin/python3

import datetime
import smtplib
import time
import requests
import sys
import random
from bs4 import BeautifulSoup

# chmod  x informit.py
# python3 -m venv venv
# source venv/bin/activate
# pip install --upgrade pip
# pip install requests beautifulsoup4


class bcolors:
    SUCCESS = "\033[92m"
    WARNING = "\033[93m"
    ERROR = "\033[91m"
    ENDC = "\033[0m"


URL = "https://www.informit.com/deals/"
smtp_username = "<INSERT_HERE>"
smtp_password = "<INSERT_HERE>"
email_address = "<INSERT_HERE>"

headers = {
    "cache-control": "max-age=0",
    "upgrade-insecure-requests": "1",
    "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36",
    "sec-fetch-dest": "document",
    "accept": "text/html,application/xhtml xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
    "sec-fetch-site": "none",
    "sec-fetch-mode": "navigate",
    "sec-fetch-user": "?1",
    "accept-language": "en-US,en;q=0.9,cs;q=0.8",
}

today = datetime.date.today()

title = ""
threshold = 0
server = smtplib.SMTP("smtp.gmail.com", 587)
email = email_address


def check_price():
    global title
    global price
    global discountPercentage
    global buy_suffix

    page = requests.get(URL, headers=headers)
    soup = BeautifulSoup(page.content, "html.parser")

    title = soup.find("h2", {"class": "title gtm_title"}).text.strip()
    price = soup.find("strong", {"class": "gtm_price"}).text.strip()
    discountPercentage = soup.find("span", {"class": "discountPercentage"}).text.strip()
    buy_suffix = soup.find("div", {"class": "buyOption"}).find(
        "a", {"class": "productPurchase buy button"}
    )["href"]

    if len(title) == 0 or len(price) == 0:
        print(f"{bcolors.ERROR}The item you were tracking was not found{bcolors.ENDC}")
        send_warning_mail()
        end_script()

    print(
        f"eBook Deal of the Day on {today} is {title} for USD {price} ({discountPercentage}). Buy it here: https://www.informit.com{buy_suffix}"
    )

    send_success_mail()


def setup_email_service():
    server.ehlo()
    server.starttls()
    server.ehlo()
    server.login(smtp_username, smtp_password)


def send_email(msg):
    server.sendmail(smtp_username, email, msg)
    print("Email has been sent!")
    server.quit()


def send_success_mail():
    setup_email_service()
    subject = f"InformIT eBook Deal of the Day - {title}"
    body = f"eBook Deal of the Day on {today} is {title} for USD {price} ({discountPercentage}). Buy it here: https://www.informit.com{buy_suffix}"
    msg = f"Subject: {subject}\n\n{body}"
    send_email(msg)


def send_warning_mail():
    setup_email_service()
    subject = "The item you were tracking was not found"
    body = f"Something has changed and the link {URL} is probably no longer valid"
    msg = f"Subject: {subject}\n\n{body}"
    send_email(msg)


def end_script():
    print("Exiting the script...")
    sys.exit()


check_price()