# # Copyright 2025 The InfiniFlow Authors. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # import base64 import ipaddress import json import re import socket from urllib.parse import urlparse from selenium import webdriver from selenium.common.exceptions import TimeoutException from selenium.webdriver.chrome.options import Options from selenium.webdriver.chrome.service import Service from selenium.webdriver.common.by import By from selenium.webdriver.support.expected_conditions import staleness_of from selenium.webdriver.support.ui import WebDriverWait from webdriver_manager.chrome import ChromeDriverManager 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 def safe_json_parse(data: str | dict) -> dict: if isinstance(data, dict): return data try: return json.loads(data) if data else {} except (json.JSONDecodeError, TypeError): return {} def get_float(req: dict, key: str, default: float | int = 10.0) -> float: try: parsed = float(req.get(key, default)) return parsed if parsed > 0 else default except (TypeError, ValueError): return default