93 lines
2.7 KiB
Python
93 lines
2.7 KiB
Python
import asyncio
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from aiohttp import web
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from server.database import DatabaseConnection
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from server.conf import database_dir
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ERRORS = {
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'INVALID_PARAMS': {'code': -32602, 'message': 'Invalid parameters'},
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'INTERNAL': {'code': -32603, 'message': 'An internal error'},
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'UNKNOWN': {'code': -1, 'message': 'An unknown or very miscellaneous error'},
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}
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class CommentServer:
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def __init__(self, port=2903):
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self.port = port
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self.app = web.Application(debug=True)
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self.app.add_routes([web.post('/api', self.api)])
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self.runner = None
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self.server = None
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self.db_conn = DatabaseConnection(database_dir)
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def ping(cls):
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return 'pong'
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methods = {
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'ping': ping,
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'get_claim_comments': None,
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'get_comment_ids': None,
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'get_comments_by_id': None,
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'create_comment': None
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}
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__methods = {
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'ping'
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}
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__db_methods = {
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'get_claim_comments',
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'get_comment_ids',
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'get_comments_by_id',
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'create_comment'
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}
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def process_json(self, body) -> dict:
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response = {'jsonrpc': '2.0', 'id': body['id']}
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if body['method'] in self.methods:
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method = body['method']
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params = body.get('params', {})
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if method in self.__db_methods:
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result = self.db_conn.__getattribute__(method).__call__(**params)
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else:
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result = self.__methods[method](self, **params)
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response['result'] = result
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else:
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response['error'] = ERRORS['UNKNOWN']
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return response
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async def _start(self):
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self.db_conn.obtain_connection()
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self.runner = web.AppRunner(self.app)
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await self.runner.setup()
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self.server = web.TCPSite(self.runner, 'localhost', self.port)
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await self.server.start()
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async def _stop(self):
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self.db_conn.connection.close()
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await self.runner.cleanup()
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async def run(self, max_timeout=3600):
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try:
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await self._start()
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await asyncio.sleep(max_timeout)
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except asyncio.CancelledError:
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pass
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finally:
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await self._stop()
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async def api(self, request):
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body = await request.json()
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if type(body) is list or type(body) is dict:
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if type(body) is list: # batch request
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response = [self.process_json(part) for part in body]
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else: # single rpc request
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response = self.process_json(body)
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return web.json_response(response)
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else:
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return web.json_response({'error': ERRORS['UNKNOWN']})
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if __name__ == '__main__':
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app = CommentServer()
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asyncio.run(app.run())
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