saintnet_stickers/sticker/pack.py

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# maunium-stickerpicker - A fast and simple Matrix sticker picker widget.
# Copyright (C) 2020 Tulir Asokan
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from typing import Dict, Optional
from hashlib import sha256
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import mimetypes
import argparse
import os.path
import asyncio
import string
import json
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try:
import magic
except ImportError:
print("[Warning] Magic is not installed, using file extensions to guess mime types")
magic = None
from .lib import matrix, util
def convert_name(name: str) -> str:
name_translate = {
ord(" "): ord("_"),
}
allowed_chars = string.ascii_letters + string.digits + "_-/.#"
return "".join(filter(lambda char: char in allowed_chars, name.translate(name_translate)))
async def upload_sticker(file: str, directory: str, old_stickers: Dict[str, matrix.StickerInfo]
) -> Optional[matrix.StickerInfo]:
if file.startswith("."):
return None
path = os.path.join(directory, file)
if not os.path.isfile(path):
return None
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if magic:
mime = magic.from_file(path, mime=True)
else:
mime, _ = mimetypes.guess_type(file)
if not mime.startswith("image/"):
return None
print(f"Processing {file}", end="", flush=True)
try:
with open(path, "rb") as image_file:
image_data = image_file.read()
except Exception as e:
print(f"... failed to read file: {e}")
return None
name = os.path.splitext(file)[0]
# If the name starts with "number-", remove the prefix
name_split = name.split("-", 1)
if len(name_split) == 2 and name_split[0].isdecimal():
name = name_split[1]
sticker_id = f"sha256:{sha256(image_data).hexdigest()}"
print(".", end="", flush=True)
if sticker_id in old_stickers:
sticker = {
**old_stickers[sticker_id],
"body": name,
}
print(f".. using existing upload")
else:
image_data, width, height = util.convert_image(image_data)
print(".", end="", flush=True)
mxc = await matrix.upload(image_data, "image/png", file)
print(".", end="", flush=True)
sticker = util.make_sticker(mxc, width, height, len(image_data), name)
sticker["id"] = sticker_id
print(" uploaded", flush=True)
return sticker
async def main(args: argparse.Namespace) -> None:
await matrix.load_config(args.config)
dirname = os.path.basename(os.path.abspath(args.path))
meta_path = os.path.join(args.path, "pack.json")
try:
with util.open_utf8(meta_path) as pack_file:
pack = json.load(pack_file)
print(f"Loaded existing pack meta from {meta_path}")
except FileNotFoundError:
pack = {
"title": args.title or dirname,
"id": args.id or convert_name(dirname),
"stickers": [],
}
old_stickers = {}
else:
old_stickers = {sticker["id"]: sticker for sticker in pack["stickers"]}
pack["stickers"] = []
for file in sorted(os.listdir(args.path)):
sticker = await upload_sticker(file, args.path, old_stickers=old_stickers)
if sticker:
pack["stickers"].append(sticker)
with util.open_utf8(meta_path, "w") as pack_file:
json.dump(pack, pack_file)
print(f"Wrote pack to {meta_path}")
if args.add_to_index:
picker_file_name = f"{pack['id']}.json"
picker_pack_path = os.path.join(args.add_to_index, picker_file_name)
with util.open_utf8(picker_pack_path, "w") as pack_file:
json.dump(pack, pack_file)
print(f"Copied pack to {picker_pack_path}")
util.add_to_index(picker_file_name, args.add_to_index)
parser = argparse.ArgumentParser()
parser.add_argument("--config",
help="Path to JSON file with Matrix homeserver and access_token",
type=str, default="config.json", metavar="file")
parser.add_argument("--title", help="Override the sticker pack displayname", type=str,
metavar="title")
parser.add_argument("--id", help="Override the sticker pack ID", type=str, metavar="id")
parser.add_argument("--add-to-index", help="Sticker picker pack directory (usually 'web/packs/')",
type=str, metavar="path")
parser.add_argument("path", help="Path to the sticker pack directory", type=str)
def cmd():
asyncio.get_event_loop().run_until_complete(main(parser.parse_args()))
if __name__ == "__main__":
cmd()