135 lines
No EOL
3.8 KiB
Python
135 lines
No EOL
3.8 KiB
Python
import os
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import hashlib
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import time
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from typing import List
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from playwright.sync_api import sync_playwright
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from jinja2 import Environment, FileSystemLoader, StrictUndefined
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from jinja2.sandbox import SandboxedEnvironment
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from config.config import TMP, TZINFO
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from utils.err import easyExceptionHandler
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# configuration
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IMAGE_WIDTH = 1080
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IMAGE_HEIGHT = 1350
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TEMPLATE_DIR = "./PictureMaker/templates"
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TARGET_COMMENT_SYSTEM = True # set this to False if your platform not have comment system
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def render(post_context:dict) -> tuple[list[str], int]:
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err = 0
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browser = None
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page = None
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context = None
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fnlist = []
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try:
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with sync_playwright() as p:
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# open a browser
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browser = p.chromium.launch(headless=True)
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context = browser.new_context()
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page = context.new_page()
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# render template
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env = SandboxedEnvironment( # sandbox -> 降低SSTI的影響範圍
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loader=FileSystemLoader(TEMPLATE_DIR),
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autoescape=True # auto escape -> prevent xss
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)
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env.undefined = StrictUndefined
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template = env.get_template('index.jinja2')
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main = {
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"id": post_context["id"],
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"content": post_context["content"]["text"],
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"time": post_context["metadata"]["create_time"].astimezone(tz=TZINFO).strftime("%Y-%m-%d %H:%M:%S")
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}
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## (optional) parent article of comment
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parent = None
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if TARGET_COMMENT_SYSTEM:
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from backend.utils import ld_interface
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parent_id = post_context["metadata"]["parent"]
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if parent_id is not None:
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parent_context = ld_interface.inf.get(index=parent_id, media=False)
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parent = {
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"id": parent_context["id"],
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"content": parent_context["content"]["text"]
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}
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rendered_html = template.render(main=main, parent=parent)
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#print(rendered_html)
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page.set_content(rendered_html)
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# set window size
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page.set_viewport_size({"width": IMAGE_WIDTH, "height": IMAGE_HEIGHT})
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# screen shot
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time.sleep(0.1)
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while True:
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filename = TMP + hashlib.sha512( str(time.time()).encode() ).hexdigest() + ".jpg"
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filename = os.path.abspath(filename)
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page.screenshot(path=filename)
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fnlist.append(filename)
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result = page.evaluate("scrollPage()")
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if result == 1:
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break
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except Exception as e:
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# exception
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easyExceptionHandler(e)
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err = 1
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finally:
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if page:
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try: page.close()
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except: pass
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if context:
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try: context.close()
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except: pass
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if browser:
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try: browser.close()
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except: pass
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return fnlist, err
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def gen(context:dict) -> List[str]:
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"""
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Generate a image that has the content of the post in it.
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Args:
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context (dict): data of a post
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Returns:
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str: filename of the generated image.
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None: An error occurred, and nothing was returned.
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"""
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# data preparation
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# content = context["content"]["text"]
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# generate image
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files, err = render(context)
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if err:
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return []
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return files
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def gen_caption(context:dict) -> str:
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"""
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Generate caption of the IG post.
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Args:
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context (dict): data of a post
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Returns:
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str: caption.
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"""
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caption = f"""中工匿名#{context["id"]} 🔧 {context["content"]["text"]}
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發布匿名貼文 > niming.tcivs.live
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"""
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return caption |