Initial commit, refactored some things from original code and removed WP functionality

bot/Dockerfile

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+FROM python:3.7
+
+ENV TELEGRAM_API_KEY=5707028834:AAFlX07ObRGWmm15KtHgwqcPZ4OHy-MkMks
+
+# Adding trusting keys to apt for repositories
+RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
+
+# Adding Google Chrome to the repositories
+RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'
+
+# Updating apt to see and install Google Chrome
+RUN apt-get -y update
+
+# Magic happens
+RUN apt-get install -y google-chrome-stable
+
+# Installing Unzip
+RUN apt-get install -yqq unzip
+
+# Download the Chrome Driver
+RUN wget -O /tmp/chromedriver.zip http://chromedriver.storage.googleapis.com/`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`/chromedriver_linux64.zip
+
+# Unzip the Chrome Driver into /usr/local/bin directory
+RUN unzip /tmp/chromedriver.zip chromedriver -d /usr/local/bin/
+
+# Set display port as an environment variable
+ENV DISPLAY=:99
+
+RUN mkdir /app
+ADD requirements.txt /app
+ADD bot.py /app
+RUN pip install -r /app/requirements.txt
+
+WORKDIR /app
+
+CMD [ "python", "/app/bot.py" ]

bot/bot.py

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+import logging
+import re
+import random
+import dbhelper
+import constants
+import helpers
+import parser
+
+from bs4 import BeautifulSoup
+from selenium.webdriver.chrome.options import Options
+from selenium import webdriver
+from telegram import Update, ForceReply
+from telegram.ext import Updater, CommandHandler, MessageHandler, Filters, CallbackContext
+
+def get_chrome_options():
+    chrome_options = Options()
+    chrome_options.add_argument("--headless")
+    chrome_options.add_argument("--no-sandbox")
+    chrome_options.add_argument("--disable-dev-shm-usage")
+    chrome_prefs = {}
+    chrome_options.experimental_options["prefs"] = chrome_prefs
+    chrome_prefs["profile.default_content_settings"] = {"images": 2}
+    return chrome_options
+
+def find_amazon_link(update: Update, context: CallbackContext) -> None:
+    productCode = ""
+    extraparams = ""
+    try:
+        msg = update.message.text
+    except AttributeError:
+        logging.info(f"Received message has no text")
+        return
+    start = msg.find("amzn.to")
+    if start != -1:
+        msg = helpers.unshort_url(msg[start:].split()[0])
+    start = msg.find("amzn.eu")
+    if start != -1:
+        msg = helpers.unshort_url(msg[start:].split()[0])
+    start = msg.find(constants.searchURL)
+    if start != -1:
+        msg = f"https://{msg[start:].split(' ')[0]}"
+        m = re.search(r'(?:dp\/[\w]*)|(?:gp\/product\/[\w]*)',msg) # Gets product code in amazon
+        m_e = re.search(r'(?:&m=[\w]*)',msg) # Gets vendor and keeps it
+        if m != None:
+            productCode = m.group(0)
+        if m_e != None:
+            extraparams = m_e.group(0)
+
+        user, chat, message_id = update.message.from_user, update.message.chat, update.message.message_id
+        logging.info(f"Link sent by {user} - {msg}")
+
+        logging.info("Setting up new Chrome Browser")
+        driver = webdriver.Chrome(options=get_chrome_options())
+        driver.set_window_size(random.randint(1200, 1800), random.randint(600, 1000))
+        logging.info("Loading Amazon webpage")
+        driver.get(msg)
+        logging.info("Scraping information and closing browser")
+        soup = BeautifulSoup(driver.page_source, "lxml")
+        driver.close()
+
+        logging.info("Getting title...")
+        title, price, image = parser.get_title(soup), parser.get_price(soup), parser.get_image(soup)
+        if title == "":
+            logging.info(f"Title not found, not a valid product")
+            return
+        logging.info(f"Title found: {title}")
+
+        context.bot.deleteMessage(chat_id=chat['id'], message_id=message_id)
+        referurl = helpers.new_refer_url(productCode, extraparams)
+        product_id = dbhelper.check_product(referurl, price)
+        if not product_id:
+            product_id = dbhelper.add_product(user['username'], chat['title'], user['id'], chat['id'], msg, referurl, title, price, image)
+            helpers.create_image(product_id, price)
+        context.bot.send_photo(chat_id=update.message.chat_id, photo=open(f"/app/data/images/products/{product_id}_composed.png", 'rb'), caption=f"URL enviada por @{user['username']}: \n\n{title} \n\n{referurl}")
+
+def main() -> None:
+    dbhelper.setup_db()
+
+    updater = Updater(constants.TELEGRAM_API_KEY)
+    dispatcher = updater.dispatcher
+    dispatcher.add_handler(MessageHandler(Filters.text & ~Filters.command, find_amazon_link))
+    updater.start_polling()
+    updater.idle()
+
+if __name__ == '__main__':
+    main()

bot/constants.py

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+import os
+
+TELEGRAM_API_KEY = os.getenv('TELEGRAM_API_KEY')
+baseURL = os.environ['baseURL'] 
+affiliate_tag = os.environ['affiliate_tag']
+HEADERS = ({'User-Agent':
+	            'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36',
+	            'Accept-Language': 'en-US, en;q=0.5'})
+DB = '/data/amazon.db'
+
+if baseURL.startswith("https://www."):
+    searchURL = baseURL[12:]
+elif baseURL.startswith("http://www."):
+    searchURL = baseURL[11:]
+    baseURL = "https://www."+searchURL
+else:
+    searchURL = baseURL
+    baseURL = "https://www."+baseURL

bot/dbhelper.py

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+import sqlite3
+import requests
+import constants
+import helpers
+
+def setup_db():
+    con = sqlite3.connect(constants.DB)
+    cur = con.cursor()
+    cur.execute("CREATE TABLE IF NOT EXISTS amazon(id INTEGER PRIMARY KEY AUTOINCREMENT, \
+                timestamp DATETIME DEFAULT CURRENT_TIMESTAMP, tg_user TEXT, tg_group TEXT, \
+                tg_user_id INTEGER, tg_group_id INTEGER, url TEXT, referurl TEXT, price TEXT, \
+                title TEXT, image TEXT)")
+    con.close()
+
+def add_product(tg_user, tg_group, tg_user_id, tg_group_id, url, referurl, title, price, image):
+    con = sqlite3.connect(constants.DB)
+    cur = con.cursor()
+    cur.execute(f"INSERT INTO amazon (tg_user, tg_group, tg_user_id, tg_group_id, url, referurl, price, title, image) \
+        VALUES ('{tg_user}', '{tg_group}', {tg_user_id}, {tg_group_id}, '{url}', '{referurl}', '{price}', '{title}', '{image}')")
+    product_id = cur.lastrowid
+    con.commit()
+    con.close()
+
+    response = requests.get(image, headers=constants.HEADERS)
+    file = open(f"/app/data/images/products/{product_id}.jpg", "wb")
+    file.write(response.content)
+    file.close()
+
+    return product_id
+
+def check_product(referurl, price):
+    con = sqlite3.connect(constants.DB)
+    cur = con.cursor()
+    cur.execute(f"SELECT * FROM amazon WHERE referurl='{referurl}' ORDER BY id DESC")
+    result = cur.fetchone()
+
+    if result is None:
+        helpers.logging.info("New entry, creating in DB")
+        return False
+    else:
+        helpers.logging.info("Already exists, checking price")
+        if price == result[8]:
+            helpers.logging.info("Price is the same, retrieving link")
+            return result[0]
+        else:
+            helpers.logging.info("Price is different, creating new entry in DB")
+            return False

bot/helpers.py

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+import logging
+import constants
+import requests
+from PIL import Image, ImageDraw, ImageFont
+
+# Enable logging
+logging.basicConfig(
+    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', level=logging.INFO
+)
+
+logger = logging.getLogger(__name__)
+
+def create_image(product_id, price):
+    width = 1280
+    height = 800
+    baseheight = int(height * 0.85)
+    # límite de ancho para la parte izquierda (producto)
+    wlimit = int(((width / 3) * 2) - 80)
+    # límite de ancho para los logos (homelabers y amazon)
+    wlogo = int(width * 0.2)
+    # fuente y tamaño
+    font = ImageFont.truetype("/app/data/fonts/Roboto-Bold.ttf", 90)
+    # inicializamos canvas
+    image = Image.new('RGBA', (width, height), (255, 255, 255))
+    # logo homelabers, redimensionamos y ponemos en la parte derecha arriba
+    logo_image = Image.open("/app/data/images/logo.png").convert("RGBA")
+    lpercent = wlogo / float(logo_image.size[0])
+    hlogo = int((float(logo_image.size[1]) * float(lpercent)))
+    logo_image = logo_image.resize((wlogo, hlogo), Image.Resampling.LANCZOS)
+    image.paste(logo_image, (int((width / 6) * 5 - logo_image.size[0] / 2), int(height * 0.1)), logo_image)
+    # logo amazon, redimensionamos y ponemos en la parte derecha abajo
+    amazon_logo = Image.open("/app/data/images/Amazon_logo.png").convert("RGBA")
+    lpercent = wlogo / float(amazon_logo.size[0])
+    hlogo = int((float(amazon_logo.size[1]) * float(lpercent)))
+    amazon_logo = amazon_logo.resize((wlogo, hlogo), Image.Resampling.LANCZOS)
+    image.paste(amazon_logo, (int((width / 6) * 5 - amazon_logo.size[0] / 2), int(height - height * 0.2)), amazon_logo)
+    # dibujamos rectángulo verde externo, con un margen externo y ancho determinado
+    draw = ImageDraw.Draw(image)
+    wtext, htext = draw.textsize(price, font=font)
+    draw.text(((width / 6) * 5 - wtext / 2, height / 2 - htext / 2), price, (0, 0, 0), font=font)
+    draw.rectangle([15, 15, width - 15, height - 15], width = 15, outline="#20e163")
+    # ponemos la imagen del producto en la parte izquierda y se redimensiona dependiendo de lo ancho
+    product_image = Image.open(f"/app/data/images/products/{product_id}.jpg")
+    hpercent = (baseheight / float(product_image.size[1]))
+    wsize = int((float(product_image.size[0]) * float(hpercent)))
+    if wsize < wlimit:
+        product_image = product_image.resize((wsize, baseheight), Image.Resampling.LANCZOS)
+    else:
+        wpercent = wlimit / float(product_image.size[0])
+        hsize = int((float(product_image.size[1]) * float(wpercent)))
+        product_image = product_image.resize((wlimit, hsize), Image.Resampling.LANCZOS)
+    image.paste(product_image, (int((width/3)-(product_image.size[0]/2)), int((height/2) - (product_image.size[1]/2))))
+    # guardamos la imagen con otro nombre
+    image.save(f"/app/data/images/products/{product_id}_composed.png", quality=95)
+
+def new_refer_url(pcode, extraparams=None):
+    return constants.baseURL+pcode+"?tag="+constants.affiliate_tag+extraparams
+
+def unshort_url(url):
+    session = requests.Session()
+    #resp = session.head("https://"+url, allow_redirects=True)
+    resp = session.get("https://"+url, allow_redirects=True)
+    logging.info(f"Unshorted URL: {resp.url}")
+    return resp.url

bot/parser.py

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+import helpers
+
+def get_title(soup):
+    try:
+        title = soup.find("span", attrs={"id":'productTitle'})
+        title_value = title.string
+        title_string = title_value.strip()
+    except AttributeError as err:
+        helpers.logging.info(f"Couldn't get title: {err}")
+        title_string = ""
+        
+    return title_string
+
+def get_price(soup):
+    try:
+        price = soup.find("span", attrs={'class':'a-offscreen'}).string.strip()
+        # A veces mete el título en el precio
+        if "€" not in price:
+            price = "N/A"
+    except AttributeError:
+        price = "N/A"	
+
+    return price
+
+def get_image(soup):
+    try:
+        image = soup.find("img", attrs={'id':'landingImage'})
+        image = image.get('src')
+    except AttributeError:
+        image = "N/A"	
+
+    return image

bot/requirements.txt

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+python-telegram-bot==13.13
+requests==2.28.1
+beautifulsoup4==4.11.1
+lxml==4.9.1
+selenium==4.4.0
+Pillow==9.2.0