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https://github.com/PaiGramTeam/PamGram.git
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f122e21092
* 增加 html to image 缓存 * 对 template_service.render 进行封装，管理缓存逻辑 * cache key 为 html 的 sha256 * cache value 为 reply_photo 后 telegram 返回的 file_id * 存入 redis，并设置合理的 ttl Co-authored-by: 洛水居室 <luoshuijs@outlook.com> Co-authored-by: xtaodada <xtao@xtaolink.cn>
53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
import gzip
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import pickle # nosec B403
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from hashlib import sha256
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from typing import Any, Optional
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from core.base.redisdb import RedisDB
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class TemplatePreviewCache:
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"""暂存渲染模板的数据用于预览"""
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def __init__(self, redis: RedisDB):
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self.client = redis.client
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self.qname = "bot:template:preview"
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async def get_data(self, key: str) -> Any:
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data = await self.client.get(self.cache_key(key))
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if data:
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# skipcq: BAN-B301
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return pickle.loads(gzip.decompress(data)) # nosec B301
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async def set_data(self, key: str, data: Any, ttl: int = 8 * 60 * 60):
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ck = self.cache_key(key)
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await self.client.set(ck, gzip.compress(pickle.dumps(data)))
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if ttl != -1:
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await self.client.expire(ck, ttl)
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def cache_key(self, key: str) -> str:
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return f"{self.qname}:{key}"
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class HtmlToFileIdCache:
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"""html to file_id 的缓存"""
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def __init__(self, redis: RedisDB):
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self.client = redis.client
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self.qname = "bot:template:html-to-file-id"
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async def get_data(self, html: str, file_type: str) -> Optional[str]:
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data = await self.client.get(self.cache_key(html, file_type))
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if data:
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return data.decode()
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async def set_data(self, html: str, file_type: str, file_id: str, ttl: int = 24 * 60 * 60):
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ck = self.cache_key(html, file_type)
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await self.client.set(ck, file_id)
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if ttl != -1:
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await self.client.expire(ck, ttl)
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def cache_key(self, html: str, file_type: str) -> str:
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key = sha256(html.encode()).hexdigest()
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return f"{self.qname}:{file_type}:{key}"
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