mirror of
https://github.com/PaiGramTeam/MibooGram.git
synced 2024-11-27 18:31:25 +00:00
70 lines
3.1 KiB
Python
70 lines
3.1 KiB
Python
import os
|
|
import time
|
|
from typing import Optional
|
|
|
|
from jinja2 import PackageLoader, Environment, Template
|
|
from playwright.async_api import ViewportSize
|
|
|
|
from config import config
|
|
from logger import Log
|
|
from utils.aiobrowser import AioBrowser
|
|
|
|
|
|
class TemplateService:
|
|
def __init__(self, browser: AioBrowser, template_package_name: str = "resources", cache_dir_name: str = "cache"):
|
|
self._browser = browser
|
|
self._template_package_name = template_package_name
|
|
self._current_dir = os.getcwd()
|
|
self._output_dir = os.path.join(self._current_dir, cache_dir_name)
|
|
if not os.path.exists(self._output_dir):
|
|
os.mkdir(self._output_dir)
|
|
self._jinja2_env = {}
|
|
self._jinja2_template = {}
|
|
|
|
def get_template(self, package_path: str, template_name: str) -> Template:
|
|
if config.debug:
|
|
# DEBUG下 禁止复用 方便查看和修改模板
|
|
loader = PackageLoader(self._template_package_name, package_path)
|
|
jinja2_env = Environment(loader=loader, enable_async=True, autoescape=True)
|
|
jinja2_template = jinja2_env.get_template(template_name)
|
|
else:
|
|
jinja2_env: Environment = self._jinja2_env.get(package_path)
|
|
jinja2_template: Template = self._jinja2_template.get(package_path + template_name)
|
|
if jinja2_env is None:
|
|
loader = PackageLoader(self._template_package_name, package_path)
|
|
jinja2_env = Environment(loader=loader, enable_async=True, autoescape=True)
|
|
jinja2_template = jinja2_env.get_template(template_name)
|
|
self._jinja2_env[package_path] = jinja2_env
|
|
self._jinja2_template[package_path + template_name] = jinja2_template
|
|
return jinja2_template
|
|
|
|
async def render(self, template_path: str, template_name: str, template_data: dict,
|
|
viewport: ViewportSize, full_page: bool = True, evaluate: Optional[str] = None) -> bytes:
|
|
"""
|
|
模板渲染成图片
|
|
:param template_path: 模板目录
|
|
:param template_name: 模板文件名
|
|
:param template_data: 模板数据
|
|
:param viewport: 截图大小
|
|
:param full_page: 是否长截图
|
|
:param auto_escape: 是否自动转义
|
|
:param evaluate: 页面加载后运行的 js
|
|
:return:
|
|
"""
|
|
start_time = time.time()
|
|
template = self.get_template(template_path, template_name)
|
|
template_data["res_path"] = f"file://{self._current_dir}"
|
|
html = await template.render_async(**template_data)
|
|
Log.debug(f"{template_name} 模板渲染使用了 {str(time.time() - start_time)}")
|
|
browser = await self._browser.get_browser()
|
|
start_time = time.time()
|
|
page = await browser.new_page(viewport=viewport)
|
|
await page.goto(f"file://{template.filename}")
|
|
await page.set_content(html, wait_until="networkidle")
|
|
if evaluate:
|
|
await page.evaluate(evaluate)
|
|
png_data = await page.screenshot(full_page=full_page)
|
|
await page.close()
|
|
Log.debug(f"{template_name} 图片渲染使用了 {str(time.time() - start_time)}")
|
|
return png_data
|