mirror of
https://github.com/LiteyukiStudio/LiteyukiBot.git
synced 2024-11-30 10:14:45 +08:00
266 lines
8.2 KiB
Python
266 lines
8.2 KiB
Python
import os.path
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from os import getcwd
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from pathlib import Path
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from typing import Literal, Optional, Union
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import aiofiles
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import jinja2
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import markdown
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from nonebot.log import logger
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from .browser import get_new_page
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TEMPLATES_PATH = str(Path(__file__).parent / "templates")
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env = jinja2.Environment( # noqa: S701
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extensions=["jinja2.ext.loopcontrols"],
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loader=jinja2.FileSystemLoader(TEMPLATES_PATH),
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enable_async=True,
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)
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async def text_to_pic(
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text: str,
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css_path: str = "",
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width: int = 500,
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type: Literal["jpeg", "png"] = "png", # noqa: A002
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quality: Union[int, None] = None,
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device_scale_factor: float = 2,
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) -> bytes:
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"""多行文本转图片
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Args:
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text (str): 纯文本, 可多行
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css_path (str, optional): css文件
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width (int, optional): 图片宽度，默认为 500
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type (Literal["jpeg", "png"]): 图片类型, 默认 png
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quality (int, optional): 图片质量 0-100 当为`png`时无效
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device_scale_factor: 缩放比例,类型为float,值越大越清晰(真正想让图片清晰更优先请调整此选项)
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Returns:
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bytes: 图片, 可直接发送
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"""
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template = env.get_template("text.html")
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return await html_to_pic(
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template_path=f"file://{css_path if css_path else TEMPLATES_PATH}",
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html=await template.render_async(
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text=text,
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css=await read_file(css_path) if css_path else await read_tpl("text.css"),
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),
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viewport={"width": width, "height": 10},
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type=type,
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quality=quality,
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device_scale_factor=device_scale_factor,
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)
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async def md_to_pic(
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md: str = "",
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md_path: str = "",
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css_path: str = "",
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width: int = 500,
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type: Literal["jpeg", "png"] = "png", # noqa: A002
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quality: Union[int, None] = None,
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device_scale_factor: float = 2,
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) -> bytes:
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"""markdown 转 图片
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Args:
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md (str, optional): markdown 格式文本
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md_path (str, optional): markdown 文件路径
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css_path (str, optional): css文件路径. Defaults to None.
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width (int, optional): 图片宽度，默认为 500
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type (Literal["jpeg", "png"]): 图片类型, 默认 png
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quality (int, optional): 图片质量 0-100 当为`png`时无效
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device_scale_factor: 缩放比例,类型为float,值越大越清晰(真正想让图片清晰更优先请调整此选项)
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Returns:
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bytes: 图片, 可直接发送
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"""
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template = env.get_template("markdown.html")
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if not md:
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if md_path:
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md = await read_file(md_path)
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else:
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raise Exception("必须输入 md 或 md_path")
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logger.debug(md)
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md = markdown.markdown(
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md,
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extensions=[
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"pymdownx.tasklist",
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"tables",
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"fenced_code",
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"codehilite",
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"mdx_math",
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"pymdownx.tilde",
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],
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extension_configs={"mdx_math": {"enable_dollar_delimiter": True}},
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)
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logger.debug(md)
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extra = ""
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if "math/tex" in md:
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katex_css = await read_tpl("katex/katex.min.b64_fonts.css")
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katex_js = await read_tpl("katex/katex.min.js")
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mathtex_js = await read_tpl("katex/mathtex-script-type.min.js")
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extra = (
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f'<style type="text/css">{katex_css}</style>'
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f"<script defer>{katex_js}</script>"
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f"<script defer>{mathtex_js}</script>"
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)
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if css_path:
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css = await read_file(css_path)
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else:
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css = await read_tpl("github-markdown-light.css") + await read_tpl(
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"pygments-default.css",
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)
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return await html_to_pic(
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template_path=f"file://{css_path if css_path else TEMPLATES_PATH}",
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html=await template.render_async(md=md, css=css, extra=extra),
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viewport={"width": width, "height": 10},
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type=type,
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quality=quality,
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device_scale_factor=device_scale_factor,
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)
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# async def read_md(md_path: str) -> str:
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# async with aiofiles.open(str(Path(md_path).resolve()), mode="r") as f:
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# md = await f.read()
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# return markdown.markdown(md)
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async def read_file(path: str) -> str:
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async with aiofiles.open(path, mode="r") as f:
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return await f.read()
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async def read_tpl(path: str) -> str:
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return await read_file(f"{TEMPLATES_PATH}/{path}")
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async def template_to_html(
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template_path: str,
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template_name: str,
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**kwargs,
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) -> str:
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"""使用jinja2模板引擎通过html生成图片
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Args:
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template_path (str): 模板路径
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template_name (str): 模板名
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**kwargs: 模板内容
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Returns:
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str: html
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"""
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template_env = jinja2.Environment( # noqa: S701
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loader=jinja2.FileSystemLoader(template_path),
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enable_async=True,
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)
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template = template_env.get_template(template_name)
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return await template.render_async(**kwargs)
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async def html_to_pic(
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html: str,
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wait: int = 0,
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template_path: str = f"file://{getcwd()}", # noqa: PTH109
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type: Literal["jpeg", "png"] = "png", # noqa: A002
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quality: Union[int, None] = None,
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device_scale_factor: float = 2,
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**kwargs,
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) -> bytes:
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"""html转图片
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Args:
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html (str): html文本
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wait (int, optional): 等待时间. Defaults to 0.
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template_path (str, optional): 模板路径 如 "file:///path/to/template/"
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type (Literal["jpeg", "png"]): 图片类型, 默认 png
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quality (int, optional): 图片质量 0-100 当为`png`时无效
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device_scale_factor: 缩放比例,类型为float,值越大越清晰(真正想让图片清晰更优先请调整此选项)
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**kwargs: 传入 page 的参数
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Returns:
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bytes: 图片, 可直接发送
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"""
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# logger.debug(f"html:\n{html}")
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if "file:" not in template_path:
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raise Exception("template_path 应该为 file:///path/to/template")
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async with get_new_page(device_scale_factor, **kwargs) as page:
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await page.goto(template_path)
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await page.set_content(html, wait_until="networkidle")
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await page.wait_for_timeout(wait)
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return await page.screenshot(
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full_page=True,
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type=type,
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quality=quality,
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)
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async def template_to_pic(
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template_path: str,
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templates: dict,
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pages: Optional[dict] = None,
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wait: int = 0,
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type: Literal["jpeg", "png"] = "png", # noqa: A002
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quality: Union[int, None] = None,
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device_scale_factor: float = 2,
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) -> bytes:
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"""使用jinja2模板引擎通过html生成图片
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Args:
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template_path (str): 模板路径
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templates (dict): 模板内参数 如: {"name": "abc"}
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pages (dict): 网页参数 Defaults to
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{"base_url": f"file://{getcwd()}", "viewport": {"width": 500, "height": 10}}
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wait (int, optional): 网页载入等待时间. Defaults to 0.
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type (Literal["jpeg", "png"]): 图片类型, 默认 png
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quality (int, optional): 图片质量 0-100 当为`png`时无效
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device_scale_factor: 缩放比例,类型为float,值越大越清晰(真正想让图片清晰更优先请调整此选项)
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Returns:
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bytes: 图片 可直接发送
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"""
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if pages is None:
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pages = {
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"viewport": {"width": 500, "height": 10},
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"base_url": f"file://{getcwd()}", # noqa: PTH109
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}
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template_env = jinja2.Environment( # noqa: S701
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loader=jinja2.FileSystemLoader(os.path.dirname(template_path)),
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enable_async=True,
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)
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template = template_env.get_template(os.path.basename(template_path))
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return await html_to_pic(
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template_path=f"file://{template_path}",
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html=await template.render_async(**templates),
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wait=wait,
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type=type,
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quality=quality,
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device_scale_factor=device_scale_factor,
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**pages,
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)
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async def capture_element(
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url: str,
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element: str,
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timeout: float = 0,
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type: Literal["jpeg", "png"] = "png", # noqa: A002
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quality: Union[int, None] = None,
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**kwargs,
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) -> bytes:
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async with get_new_page(**kwargs) as page:
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await page.goto(url, timeout=timeout)
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return await page.locator(element).screenshot(
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type=type,
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quality=quality,
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)
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