baangt-service/files/app/routes.py

from flask import request, render_template, send_from_directory, jsonify, send_file, abort
from app import app, forms
from uuid import uuid4
import os


@app.route('/', methods=['GET', 'POST'])
def index():
	#
	# web view to upload data files
	#
	
	form = forms.UploadForm()
	
	# get validated form
	if form.validate_on_submit():
		# save file
		uuid = str(uuid4())
		form.file.data.save(os.path.join(os.path.dirname(__file__), app.config['UPLOAD_FOLDER'], uuid))
		app.logger.info(f'Uploaded file {uuid}')

		return render_template('upload.html', form=form, uuid=uuid, filename=form.file.data.filename)

	return render_template('upload.html', form=form)

@app.route('/save', methods=['POST'])
def save_file():
	#
	# save uploaded file and return corresponding UUID
	#

	# check for file in request
	file = request.files.get('dataFile')

	if file is None:
		app.logger.error('Request does not contain dataFile')
		return jsonify({'error': 'Request does not contain dataFile'}), 400

	# save file
	uuid = str(uuid4())
	file.save(os.path.join(os.path.dirname(__file__), app.config['UPLOAD_FOLDER'], uuid))
	app.logger.info(f'Uploaded file {uuid}')

	return jsonify({'uuid': uuid}), 200

@app.route('/update/<string:uuid>', methods=['POST'])
def update_file(uuid):
	#
	# update UUID file by uploaded one and return corresponding UUID
	#

	# check for file in request
	file = request.files.get('dataFile')

	if file is None:
		app.logger.error('Request does not contain dataFile')
		return jsonify({'error': 'Request does not contain dataFile'}), 400

	# update file
	file.save(os.path.join(os.path.dirname(__file__), app.config['UPLOAD_FOLDER'], uuid))
	app.logger.info(f'Updated file {uuid}')

	return jsonify({'uuid': uuid}), 200

@app.route('/upload/<string:uuid>', methods=['POST'])
def upload_files(uuid):
	#
	# save uploaded files to directory 'UUID'
	#

	if not request.files:
		app.logger.error('Request does not contain files to upload')
		return jsonify({'error': 'Request does not contain files to upload'}), 400

	# create upload dir
	upload_dir = os.path.join(os.path.dirname(__file__), app.config['UPLOAD_FOLDER'], uuid)
	os.makedirs(upload_dir, exist_ok=True)
	app.logger.info(f'Created directory: {upload_dir}')

	# save files
	upload_response = {}
	for filename, file in request.files.items():
		file.save(os.path.join(upload_dir, filename))
		upload_response['filename'] = 'OK'
		app.logger.info(f'Uploaded file {filename} to {upload_dir}')

	return jsonify({'uuid': uuid, 'files': upload_response}), 200

@app.route('/get/<string:uuid>/<string:file>')
def get_logfile(uuid, file):
	#
	# retrieve files from folder UUID
	#
	
	# log file
	if file == app.config['TESTRUN_LOGFILE']:
		app.logger.info(f'Requested logfile from {uuid}')
		return send_file(
			'/'.join((app.config['UPLOAD_FOLDER'], uuid, app.config['TESTRUN_LOGFILE'])),
			mimetype='text/plain',
			attachment_filename=f'{uuid}.log',
		)

	# redults file
	elif file == app.config['TESTRUN_RESULTS']:
		app.logger.info(f'Requested output file from {uuid}')
		return send_file(
			'/'.join((app.config['UPLOAD_FOLDER'], uuid, app.config['TESTRUN_RESULTS'])),
			attachment_filename=f'{uuid}.xlsx',
			as_attachment=True,
		)

	abort(404)


@app.route('/get/<string:uuid>')
def get_file(uuid):
	#
	# retrieve a file by UUID
	#

	app.logger.info(f'Requested file {uuid}')
	#return send_from_directory(app.config['UPLOAD_FOLDER'], uuid)
	return send_file(
		'/'.join((app.config['UPLOAD_FOLDER'], uuid)),
		attachment_filename=f'{uuid}.xlsx',
		as_attachment=True,
	)