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import re
import socket
from urllib.parse import urlparse
import ipaddress
import json
import base64
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.chrome.service import Service
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support.expected_conditions import staleness_of
from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.common.by import By
def html2pdf(
source: str,
timeout: int = 2,
install_driver: bool = True,
print_options: dict = {},
):
result = __get_pdf_from_html(source, timeout, install_driver, print_options)
return result
def __send_devtools(driver, cmd, params={}):
resource = "/session/%s/chromium/send_command_and_get_result" % driver.session_id
url = driver.command_executor._url + resource
body = json.dumps({"cmd": cmd, "params": params})
response = driver.command_executor._request("POST", url, body)
if not response:
raise Exception(response.get("value"))
return response.get("value")
def __get_pdf_from_html(
path: str,
timeout: int,
install_driver: bool,
print_options: dict
):
webdriver_options = Options()
webdriver_prefs = {}
webdriver_options.add_argument("--headless")
webdriver_options.add_argument("--disable-gpu")
webdriver_options.add_argument("--no-sandbox")
webdriver_options.add_argument("--disable-dev-shm-usage")
webdriver_options.experimental_options["prefs"] = webdriver_prefs
webdriver_prefs["profile.default_content_settings"] = {"images": 2}
if install_driver:
service = Service(ChromeDriverManager().install())
driver = webdriver.Chrome(service=service, options=webdriver_options)
else:
driver = webdriver.Chrome(options=webdriver_options)
driver.get(path)
try:
WebDriverWait(driver, timeout).until(
staleness_of(driver.find_element(by=By.TAG_NAME, value="html"))
)
except TimeoutException:
calculated_print_options = {
"landscape": False,
"displayHeaderFooter": False,
"printBackground": True,
"preferCSSPageSize": True,
}
calculated_print_options.update(print_options)
result = __send_devtools(
driver, "Page.printToPDF", calculated_print_options)
driver.quit()
return base64.b64decode(result["data"])
def is_private_ip(ip: str) -> bool:
try:
ip_obj = ipaddress.ip_address(ip)
return ip_obj.is_private
except ValueError:
return False
def is_valid_url(url: str) -> bool:
if not re.match(r"(https?)://[-A-Za-z0-9+&@#/%?=~_|!:,.;]+[-A-Za-z0-9+&@#/%=~_|]", url):
return False
parsed_url = urlparse(url)
hostname = parsed_url.hostname
if not hostname:
return False
try:
ip = socket.gethostbyname(hostname)
if is_private_ip(ip):
return False
except socket.gaierror:
return False
return True |