85 lines
2.8 KiB
Python
Executable File
85 lines
2.8 KiB
Python
Executable File
import logging
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from PIL import Image
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import random
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import io
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from aiohttp import web
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from telethon.tl import types, custom
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from .base import BaseView
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log = logging.getLogger(__name__)
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class ThumbnailView(BaseView):
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async def thumbnail_get(self, req: web.Request) -> web.Response:
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file_id = int(req.match_info["id"])
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alias_id = req.match_info["chat"]
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chat = self.chat_ids[alias_id]
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chat_id = chat["chat_id"]
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try:
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message: custom.Message = await self.client.get_messages(
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entity=chat_id, ids=file_id
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)
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except Exception:
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log.debug(f"Error in getting message {file_id} in {chat_id}", exc_info=True)
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message = None
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if not message or not message.file:
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log.debug(f"no result for {file_id} in {chat_id}")
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return web.Response(
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status=410,
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text="410: Gone. Access to the target resource is no longer available!",
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)
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if message.document:
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media = message.document
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thumbnails = media.thumbs
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location = types.InputDocumentFileLocation
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else:
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media = message.photo
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thumbnails = media.sizes
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location = types.InputPhotoFileLocation
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if not thumbnails:
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color = tuple([random.randint(0, 255) for i in range(3)])
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im = Image.new("RGB", (100, 100), color)
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temp = io.BytesIO()
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im.save(temp, "PNG")
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body = temp.getvalue()
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else:
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thumb_pos = int(len(thumbnails) / 2)
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try:
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thumbnail: types.PhotoSize = self.client._get_thumb(
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thumbnails, thumb_pos
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)
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except Exception as e:
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logging.debug(e)
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thumbnail = None
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if not thumbnail or isinstance(thumbnail, types.PhotoSizeEmpty):
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return web.Response(
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status=410,
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text="410: Gone. Access to the target resource is no longer available!",
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)
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if isinstance(thumbnail, (types.PhotoCachedSize, types.PhotoStrippedSize)):
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body = self.client._download_cached_photo_size(thumbnail, bytes)
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else:
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actual_file = location(
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id=media.id,
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access_hash=media.access_hash,
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file_reference=media.file_reference,
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thumb_size=thumbnail.type,
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)
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body = self.client.iter_download(actual_file)
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return web.Response(
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status=200,
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body=body,
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headers={
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"Content-Type": "image/jpeg",
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"Content-Disposition": 'inline; filename="thumbnail.jpg"',
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},
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)
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