clearml-server/fileserver/fileserver.py
2021-05-03 17:00:38 +03:00

93 lines
2.7 KiB
Python

""" A Simple file server for uploading and downloading files """
import json
import os
from argparse import ArgumentParser
from pathlib import Path
from boltons.iterutils import first
from flask import Flask, request, send_from_directory, safe_join, abort, Response
from flask_compress import Compress
from flask_cors import CORS
from config import config
DEFAULT_UPLOAD_FOLDER = "/mnt/fileserver"
app = Flask(__name__)
CORS(app, **config.get("fileserver.cors"))
Compress(app)
app.config["UPLOAD_FOLDER"] = first(
(os.environ.get(f"{prefix}_UPLOAD_FOLDER") for prefix in ("CLEARML", "TRAINS")),
default=DEFAULT_UPLOAD_FOLDER,
)
app.config["SEND_FILE_MAX_AGE_DEFAULT"] = config.get(
"fileserver.download.cache_timeout_sec", 5 * 60
)
@app.route("/", methods=["POST"])
def upload():
results = []
for filename, file in request.files.items():
if not filename:
continue
file_path = filename.lstrip(os.sep)
target = Path(safe_join(app.config["UPLOAD_FOLDER"], file_path))
target.parent.mkdir(parents=True, exist_ok=True)
file.save(str(target))
results.append(file_path)
return json.dumps(results), 200
@app.route("/<path:path>", methods=["GET"])
def download(path):
as_attachment = "download" in request.args
response = send_from_directory(
app.config["UPLOAD_FOLDER"], path, as_attachment=as_attachment
)
if config.get("fileserver.download.disable_browser_caching", False):
headers = response.headers
headers["Pragma-directive"] = "no-cache"
headers["Cache-directive"] = "no-cache"
headers["Cache-control"] = "no-cache"
headers["Pragma"] = "no-cache"
headers["Expires"] = "0"
return response
@app.route("/<path:path>", methods=["DELETE"])
def delete(path):
path = Path(safe_join(app.config["UPLOAD_FOLDER"], path))
if not path.exists() or path.is_file():
abort(Response(f"File {str(path)} not found", 404))
path.unlink()
return json.dumps(str(path)), 200
def main():
parser = ArgumentParser(description=__doc__)
parser.add_argument(
"--port", "-p", type=int, default=8081, help="Port (default %(default)d)"
)
parser.add_argument(
"--ip", "-i", type=str, default="0.0.0.0", help="Address (default %(default)s)"
)
parser.add_argument("--debug", action="store_true", default=False)
parser.add_argument(
"--upload-folder",
"-u",
help=f"Upload folder (default {DEFAULT_UPLOAD_FOLDER})",
)
args = parser.parse_args()
if args.upload_folder is not None:
app.config["UPLOAD_FOLDER"] = args.upload_folder
app.run(debug=args.debug, host=args.ip, port=args.port, threaded=True)
if __name__ == "__main__":
main()