Tulir Asokan
76 lines
2.4 KiB
Python
76 lines
2.4 KiB
Python
# -*- coding: future_fstrings -*-
|
|
# mautrix-telegram - A Matrix-Telegram puppeting bridge
|
|
# Copyright (C) 2018 Tulir Asokan
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
from io import BytesIO
|
|
import time
|
|
import logging
|
|
|
|
import magic
|
|
from PIL import Image
|
|
|
|
from telethon.tl.types import (Document, FileLocation, InputFileLocation,
|
|
InputDocumentFileLocation)
|
|
from telethon.errors import LocationInvalidError
|
|
|
|
from ..db import TelegramFile as DBTelegramFile
|
|
|
|
log = logging.getLogger("mau.util")
|
|
|
|
|
|
def _convert_webp(file, to="png"):
|
|
try:
|
|
image = Image.open(BytesIO(file)).convert("RGBA")
|
|
new_file = BytesIO()
|
|
image.save(new_file, to)
|
|
return f"image/{to}", new_file.getvalue()
|
|
except Exception:
|
|
log.exception(f"Failed to convert webp to {to}")
|
|
return "image/webp", file
|
|
|
|
|
|
async def transfer_file_to_matrix(db, client, intent, location):
|
|
if isinstance(location, (Document, InputDocumentFileLocation)):
|
|
id = f"{location.id}-{location.version}"
|
|
elif isinstance(location, (FileLocation, InputFileLocation)):
|
|
id = f"{location.volume_id}-{location.local_id}"
|
|
else:
|
|
return None
|
|
|
|
db_file = DBTelegramFile.query.get(id)
|
|
if db_file:
|
|
return db_file
|
|
|
|
try:
|
|
file = await client.download_file_bytes(location)
|
|
except LocationInvalidError:
|
|
return None
|
|
mime_type = magic.from_buffer(file, mime=True)
|
|
|
|
image_converted = False
|
|
if mime_type == "image/webp":
|
|
mime_type, file = _convert_webp(file, to="png")
|
|
image_converted = True
|
|
|
|
uploaded = await intent.upload_file(file, mime_type)
|
|
|
|
db_file = DBTelegramFile(id=id, mxc=uploaded["content_uri"],
|
|
mime_type=mime_type, was_converted=image_converted,
|
|
timestamp=int(time.time()))
|
|
db.add(db_file)
|
|
db.commit()
|
|
|
|
return db_file
|