forked from mirror/MrDoc
95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
# coding:utf-8
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# @文件: report_html2pdf.py
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# @创建者：州的先生
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# #日期：2020/12/27
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# 博客地址：zmister.com
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from selenium import webdriver
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from selenium.webdriver.chrome.options import Options
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from selenium.common.exceptions import TimeoutException
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from selenium.webdriver.support.ui import WebDriverWait
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from selenium.webdriver.support.expected_conditions import staleness_of
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from webdriver_manager.chrome import ChromeDriverManager
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from webdriver_manager.utils import ChromeType
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from django.conf import settings
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from django.utils.translation import gettext_lazy as _
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import sys
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import json
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import base64
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def convert(source: str, target: str, timeout: int = 2, compress: bool = False, power: int = 0, install_driver: bool = True):
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'''
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Convert a given html file or website into PDF
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:param str source: source html file or website link
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:param str target: target location to save the PDF
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:param int timeout: timeout in seconds. Default value is set to 2 seconds
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:param bool compress: whether PDF is compressed or not. Default value is False
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:param int power: power of the compression. Default value is 0. This can be 0: default, 1: prepress, 2: printer, 3: ebook, 4: screen
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'''
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result = __get_pdf_from_html(source, timeout, install_driver)
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# if compress:
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# __compress(result, target, power)
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# else:
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with open(target, 'wb') as file:
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file.write(result)
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def __send_devtools(driver, cmd, params={}):
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resource = "/session/%s/chromium/send_command_and_get_result" % driver.session_id
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url = driver.command_executor._url + resource
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body = json.dumps({'cmd': cmd, 'params': params})
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response = driver.command_executor._request('POST', url, body)
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if not response:
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raise Exception(response.get('value'))
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return response.get('value')
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def __get_pdf_from_html(path: str, timeout: int, install_driver: bool, print_options={}):
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webdriver_options = Options()
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webdriver_prefs = {}
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driver = None
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webdriver_options.add_argument('--no-sandbox')
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webdriver_options.add_argument('--headless')
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webdriver_options.add_argument('--disable-gpu')
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webdriver_options.add_argument("--remote-debugging-port=9222")
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webdriver_options.add_argument('--disable-dev-shm-usage')
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webdriver_options.experimental_options['prefs'] = webdriver_prefs
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webdriver_prefs['profile.default_content_settings'] = {'images': 2}
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# 使用指定的chromedriver
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if settings.CHROMIUM_DRIVER_PATH is not None:
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driver = webdriver.Chrome(executable_path=settings.CHROMIUM_DRIVER_PATH,options=webdriver_options)
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# 使用默认的chromedriver
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else:
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driver = webdriver.Chrome(options=webdriver_options)
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driver.get(path)
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try:
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WebDriverWait(driver, timeout).until(staleness_of(driver.find_element_by_tag_name('html')))
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except TimeoutException:
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calculated_print_options = {
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'landscape': False,
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'displayHeaderFooter': False,
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'printBackground': True,
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'preferCSSPageSize': True,
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}
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calculated_print_options.update(print_options)
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result = __send_devtools(driver, "Page.printToPDF", calculated_print_options)
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driver.quit()
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return base64.b64decode(result['data'])
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if __name__ == '__main__':
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# print(sys.argv)
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html_path, pdf_path = sys.argv[1],sys.argv[2]
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convert(html_path,pdf_path)
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# html2pdf(html_path=html_path,pdf_path=pdf_path)
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