Tagging API
HeNine
3 years ago
parent
2461924d9f
commit
6e81bbf629
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import logging
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import os
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import argh
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from professor_api.main import main
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LOG_FORMAT = "[%(asctime)s] %(levelname)8s %(name)s(%(module)s:%(lineno)d): %(message)s"
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level = os.environ.get('WUBLOADER_LOG_LEVEL', 'INFO').upper()
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logging.basicConfig(level=level, format=LOG_FORMAT)
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argh.dispatch_command(main)
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import logging
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import argh
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import gevent
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from common import dateutil
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from common.database import DBManager
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from dateutil.parser import ParserError
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from gevent.pywsgi import WSGIServer
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from professor_api.professor_api import app
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def cors(app):
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"""WSGI middleware that sets CORS headers"""
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HEADERS = [
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("Access-Control-Allow-Credentials", "false"),
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("Access-Control-Allow-Headers", "*"),
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("Access-Control-Allow-Methods", "GET,HEAD"),
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("Access-Control-Allow-Origin", "*"),
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("Access-Control-Max-Age", "86400"),
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]
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def handle(environ, start_response):
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def _start_response(status, headers, exc_info=None):
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headers += HEADERS
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return start_response(status, headers, exc_info)
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return app(environ, _start_response)
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return handle
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def servelet(server):
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logging.info('Starting WSGI server.')
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server.serve_forever()
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@argh.arg('--host',
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help='Address or socket server will listen to. Default is 0.0.0.0 (everything on the local machine).')
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@argh.arg('--port',
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help='Port server will listen on. Default is 8004.')
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@argh.arg('--database',
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help='Postgres connection string, which is either a space-separated list of key=value pairs, or a URI like: '
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'postgresql://USER:PASSWORD@HOST/DBNAME?KEY=VALUE')
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@argh.arg('--bustime-start',
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help='The start time in UTC for the event, for UTC-Bustime conversion')
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def main(database="", host='0.0.0.0', port=8005, bustime_start=None):
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if bustime_start is None:
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logging.error("Missing --bustime-start!")
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exit(1)
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server = WSGIServer((host, port), cors(app))
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try:
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app.bustime_start = dateutil.parse(bustime_start)
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except ParserError:
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logging.error("Invalid --bustime-start!")
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exit(1)
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app.db_manager = DBManager(dsn=database)
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stopping = gevent.event.Event()
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def stop():
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logging.info("Shutting down")
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stopping.set()
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gevent.signal_handler(gevent.signal.SIGTERM, stop)
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serve = gevent.spawn(servelet, server)
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# Wait for either the stop signal or the server to oops out.
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gevent.wait([serve, stopping], count=1)
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server.stop()
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serve.get() # Wait for server to shut down and/or re-raise if serve_forever() errored
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logging.info("Gracefully shut down")
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import re
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import flask
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from common import database
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from flask import jsonify, request
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from psycopg2.extras import execute_values
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app = flask.Flask('buscribe')
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@app.route('/professor/line/<int:line_id>', methods=["GET"])
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def get_line(line_id):
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db_conn = app.db_manager.get_conn()
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line = database.query(db_conn, "SELECT * FROM buscribe_transcriptions WHERE id = %(id)s;", id=line_id).fetchone()
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if line is None:
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return "Line not found.", 404
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else:
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return {"start_time": line.start_time.isoformat(),
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"end_time": line.end_time.isoformat(),
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"line_data": line.transcription_json}
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@app.route('/professor/line/<int:line_id>', methods=["POST"])
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def update_line(line_id):
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db_conn = app.db_manager.get_conn()
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if "speakers" in request.json and isinstance(request.json["speakers"], list):
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# Simpler than dealing with uniqueness
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database.query(db_conn,
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"DELETE FROM buscribe_line_speakers WHERE line = %(line_id)s AND verifier = %(verifier)s;",
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line_id=line_id, verifier=1)
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execute_values(db_conn.cursor(),
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"INSERT INTO buscribe_line_speakers(line, speaker, verifier) "
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"VALUES %s;",
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[(line_id, speaker, 1) for speaker in
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request.json["speakers"]])
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if "transcription" in request.json and isinstance(request.json["transcription"], str):
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verified_line = request.json["transcription"].lower()
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verified_line = re.sub(r"[^[a-z]\s']]", "", verified_line)
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database.query(db_conn,
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"DELETE FROM buscribe_verified_lines WHERE line = %(line_id)s AND verifier = %(verifier)s;",
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line_id=line_id, verifier=1)
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database.query(db_conn,
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"INSERT INTO buscribe_verified_lines(line, verified_line, verifier) "
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"VALUES (%(line)s, %(verified_line)s, %(verifier)s)",
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line=line_id, verified_line=verified_line, verifier=1)
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return "", 204
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@app.route('/professor/speaker', methods=["GET"])
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def get_speakers():
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db_conn = app.db_manager.get_conn()
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speakers = database.query(db_conn, "SELECT name FROM buscribe_speakers;")
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return jsonify([{"id": speaker.id, "name": speaker.name} for speaker in speakers])
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@app.route('/professor/speaker/<int:speaker_id>', methods=["GET"])
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def get_speaker(speaker_id):
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db_conn = app.db_manager.get_conn()
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speaker = database.query(db_conn, "SELECT name FROM buscribe_speakers WHERE id = %(id)s;", id=speaker_id).fetchone()
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if speaker is None:
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return "Speaker not found.", 404
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else:
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return jsonify(speaker.name)
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@app.route('/professor/speaker', methods=["PUT"])
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def new_speaker():
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name = request.json
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if not isinstance(name, str):
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return "Invalid name!", 400
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name = name.lower()
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name = re.sub(r"[^\w\s']", "", name)
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db_conn = app.db_manager.get_conn()
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speakers = database.query(db_conn, "INSERT INTO buscribe_speakers(name) "
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"VALUES (%(name)s) "
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"ON CONFLICT (name) DO UPDATE SET name=EXCLUDED.name "
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"RETURNING id;", name=name)
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return "", 200, {"Content-Location": f"/professor/speaker/{speakers.fetchone().id}"}
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