125 lines
No EOL
4.2 KiB
Python
125 lines
No EOL
4.2 KiB
Python
import tornado.ioloop
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import tornado.web
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import tornado.websocket
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import argparse
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import logging
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import coloredlogs
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from coco.storage import COCOStorage
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import json
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from urllib.parse import urlparse
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logger = logging.getLogger('coco.server')
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class JsonEncoder(json.JSONEncoder):
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def default(self, obj):
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method = getattr(obj, "forJson", None)
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if callable(method ):
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return obj.forJson()
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# Let the base class default method raise the TypeError
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return json.JSONEncoder.default(self, obj)
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class RestHandler(tornado.web.RequestHandler):
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def initialize(self, storage: COCOStorage):
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self.storage = storage
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self.set_header("Content-Type", "application/json")
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def get(self, *params):
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self.write(json.dumps(self.getData(*params), cls=JsonEncoder))
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class CategoryHandler(RestHandler):
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def getData(self):
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return self.storage.getCategories()
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class AnnotationHandler(RestHandler):
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def getData(self):
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# get specific annotation
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annotation_id = self.get_argument('id', None)
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annotation_id = None if not annotation_id else int(annotation_id)
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# get by category id
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category_id = self.get_argument('category', None)
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category_id = None if not category_id else int(category_id)
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normalise = self.get_argument('normalise', False)
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normalise = int(normalise) if normalise is not False else False
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# category_id = None if not category_id else int(category_id)
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logger.debug(f'Get annotation id: {annotation_id}, category: {category_id}, normalised: {normalise}')
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annotation = self.storage.getRandomAnnotation(annotation_id=annotation_id, category_id=category_id)
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if normalise:
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return annotation.getNormalised(normalise, normalise)
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return annotation
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class WebSocketHandler(tornado.websocket.WebSocketHandler):
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CORS_ORIGINS = ['localhost', 'coco.local', 'r3.local']
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def check_origin(self, origin):
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parsed_origin = urlparse(origin)
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# parsed_origin.netloc.lower() gives localhost:3333
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valid = parsed_origin.hostname in self.CORS_ORIGINS
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return valid
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# the client connected
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def open(self, p = None):
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WebSocketHandler.connections.add(self)
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logger.info("New client connected")
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self.write_message("hello!")
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# the client sent the message
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def on_message(self, message):
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logger.debug(f"recieve: {message}")
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class StaticFileWithHeaderHandler(tornado.web.StaticFileHandler):
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def set_extra_headers(self, path):
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"""For subclass to add extra headers to the response"""
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if path[-5:] == '.html':
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self.set_header("Access-Control-Allow-Origin", "*")
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def make_app(db_filename, debug):
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storage = COCOStorage(db_filename)
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return tornado.web.Application([
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(r"/ws(.*)", WebSocketHandler),
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(r"/categories.json", CategoryHandler, {'storage': storage}),
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(r"/annotation.json", AnnotationHandler, {'storage': storage}),
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(r"/(.*)", StaticFileWithHeaderHandler,
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{"path": 'www', "default_filename": 'index.html'}),
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], debug=debug)
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if __name__ == "__main__":
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argParser = argparse.ArgumentParser(description='Server for COCO web interface')
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argParser.add_argument(
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'--port',
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'-P',
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type=int,
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default=8888,
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help='Port to listen on'
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)
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argParser.add_argument(
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'--db',
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type=str,
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metavar='DATABASE',
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required=True,
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help='Database to serve from'
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)
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argParser.add_argument(
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'--verbose',
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'-v',
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action='store_true',
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help='Increase log level'
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)
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args = argParser.parse_args()
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loglevel = logging.DEBUG if args.verbose else logging.INFO
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coloredlogs.install(
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level=loglevel,
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fmt="%(asctime)s %(hostname)s %(name)s[%(process)d] %(levelname)s %(message)s"
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)
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app = make_app(args.db, debug=args.verbose )
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app.listen(args.port)
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tornado.ioloop.IOLoop.current().start() |