417 lines
16 KiB
Python
417 lines
16 KiB
Python
import falcon
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import json
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import mysql.connector
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import config
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from datetime import datetime, timedelta, timezone
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class NotificationCollection:
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@staticmethod
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def __init__():
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pass
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@staticmethod
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def on_options(req, resp):
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resp.status = falcon.HTTP_200
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@staticmethod
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def on_get(req, resp):
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status = req.params.get('status')
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start_datetime_local = req.params.get('startdatetime')
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end_datetime_local = req.params.get('enddatetime')
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if status is not None:
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status = str.strip(status)
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if status not in ['unread', 'read', 'archived']:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_STATUS')
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timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
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if config.utc_offset[0] == '-':
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timezone_offset = -timezone_offset
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start_datetime_utc = None
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if start_datetime_local is not None and len(str.strip(start_datetime_local)) > 0:
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start_datetime_local = str.strip(start_datetime_local)
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try:
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start_datetime_utc = datetime.strptime(start_datetime_local,
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'%Y-%m-%dT%H:%M:%S').replace(tzinfo=timezone.utc) - \
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timedelta(minutes=timezone_offset)
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except ValueError:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description="API.INVALID_START_DATETIME")
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end_datetime_utc = None
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if end_datetime_local is not None and len(str.strip(end_datetime_local)) > 0:
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end_datetime_local = str.strip(end_datetime_local)
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try:
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end_datetime_utc = datetime.strptime(end_datetime_local,
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'%Y-%m-%dT%H:%M:%S').replace(tzinfo=timezone.utc) - \
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timedelta(minutes=timezone_offset)
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except ValueError:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description="API.INVALID_END_DATETIME")
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if start_datetime_utc is not None and end_datetime_utc is not None and \
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start_datetime_utc >= end_datetime_utc:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_END_DATETIME')
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# Verify User Session
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token = req.headers.get('TOKEN')
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user_uuid = req.headers.get('USER-UUID')
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if token is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.TOKEN_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
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if user_uuid is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.USER_UUID_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
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cnx = mysql.connector.connect(**config.myems_user_db)
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cursor = cnx.cursor()
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query = (" SELECT utc_expires "
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" FROM tbl_sessions "
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" WHERE user_uuid = %s AND token = %s")
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cursor.execute(query, (user_uuid, token,))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SESSION_PLEASE_RE_LOGIN')
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else:
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utc_expires = row[0]
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if datetime.utcnow() > utc_expires:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.USER_SESSION_TIMEOUT')
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cursor.execute(" SELECT id "
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" FROM tbl_users "
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" WHERE uuid = %s ",
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(user_uuid,))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_USER_PLEASE_RE_LOGIN')
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else:
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user_id = row[0]
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# get notifications
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if status is None:
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query = (" SELECT id, created_datetime_utc, status, subject, message, url "
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" FROM tbl_notifications "
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" WHERE user_id = %s AND "
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" created_datetime_utc >= %s AND created_datetime_utc < %s AND"
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" status != 'archived' "
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" ORDER BY created_datetime_utc DESC ")
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cursor.execute(query, (user_id, start_datetime_utc, end_datetime_utc))
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else:
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query = (" SELECT id, created_datetime_utc, status, subject, message, url "
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" FROM tbl_notifications "
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" WHERE user_id = %s AND "
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" created_datetime_utc >= %s AND created_datetime_utc < %s AND "
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" status = %s "
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" ORDER BY created_datetime_utc DESC ")
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cursor.execute(query, (user_id, start_datetime_utc, end_datetime_utc, status))
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rows = cursor.fetchall()
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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result = list()
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if rows is not None and len(rows) > 0:
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for row in rows:
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meta_result = {"id": row[0],
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"created_datetime":
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(row[1] +
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timedelta(hours=int(config.utc_offset[1:3]))).strftime('%Y-%m-%dT%H:%M:%S'),
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"status": row[2],
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"subject": row[3],
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"message": row[4],
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"url": row[5]}
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result.append(meta_result)
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resp.body = json.dumps(result)
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class NotificationItem:
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@staticmethod
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def __init__():
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pass
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@staticmethod
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def on_options(req, resp, id_):
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resp.status = falcon.HTTP_200
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@staticmethod
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def on_get(req, resp, id_):
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"""Handles GET requests"""
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_NOTIFICATION_ID')
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# Verify User Session
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token = req.headers.get('TOKEN')
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user_uuid = req.headers.get('USER-UUID')
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if token is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.TOKEN_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
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if user_uuid is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.USER_UUID_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
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cnx = mysql.connector.connect(**config.myems_user_db)
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cursor = cnx.cursor()
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query = (" SELECT utc_expires "
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" FROM tbl_sessions "
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" WHERE user_uuid = %s AND token = %s")
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cursor.execute(query, (user_uuid, token,))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SESSION_PLEASE_RE_LOGIN')
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else:
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utc_expires = row[0]
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if datetime.utcnow() > utc_expires:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.USER_SESSION_TIMEOUT')
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cursor.execute(" SELECT id "
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" FROM tbl_users "
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" WHERE uuid = %s ",
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(user_uuid,))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_USER_PLEASE_RE_LOGIN')
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else:
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user_id = row[0]
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# get notification
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query = (" SELECT id, created_datetime_utc, status, subject, message, url "
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" FROM tbl_notifications "
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" WHERE id = %s AND user_id = %s ")
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cursor.execute(query, (id_, user_id))
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row = cursor.fetchone()
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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if row is None:
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.NOTIFICATION_NOT_FOUND')
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meta_result = {"id": row[0],
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"created_datetime":
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(row[1] +
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timedelta(hours=int(config.utc_offset[1:3]))).strftime('%Y-%m-%dT%H:%M:%S'),
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"status": row[2],
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"subject": row[3],
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"message": row[4],
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"url": row[5]}
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resp.body = json.dumps(meta_result)
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@staticmethod
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def on_put(req, resp, id_):
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"""Handles PUT requests"""
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try:
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raw_json = req.stream.read().decode('utf-8')
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except Exception as ex:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.EXCEPTION', description=ex)
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_NOTIFICATION_ID')
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new_values = json.loads(raw_json)
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if 'status' not in new_values['data'].keys() or \
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not isinstance(new_values['data']['status'], str) or \
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len(str.strip(new_values['data']['status'])) == 0 or \
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str.strip(new_values['data']['status']) not in ('unread', 'read', 'archived'):
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_STATUS')
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status = str.strip(new_values['data']['status'])
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# Verify User Session
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token = req.headers.get('TOKEN')
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user_uuid = req.headers.get('USER-UUID')
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if token is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.TOKEN_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
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if user_uuid is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.USER_UUID_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
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cnx = mysql.connector.connect(**config.myems_user_db)
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cursor = cnx.cursor()
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query = (" SELECT utc_expires "
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" FROM tbl_sessions "
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" WHERE user_uuid = %s AND token = %s")
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cursor.execute(query, (user_uuid, token,))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SESSION_PLEASE_RE_LOGIN')
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else:
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utc_expires = row[0]
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if datetime.utcnow() > utc_expires:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.USER_SESSION_TIMEOUT')
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cursor.execute(" SELECT id "
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" FROM tbl_users "
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" WHERE uuid = %s ",
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(user_uuid,))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_USER_PLEASE_RE_LOGIN')
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else:
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user_id = row[0]
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cursor.execute(" SELECT id "
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" FROM tbl_notifications "
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" WHERE id = %s AND user_id = %s ", (id_, user_id))
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if cursor.fetchone() is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.NOTIFICATION_NOT_FOUND')
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update_row = (" UPDATE tbl_notifications "
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" SET status = %s "
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" WHERE id = %s ")
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cursor.execute(update_row, (status,
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id_,))
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cnx.commit()
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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resp.status = falcon.HTTP_200
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@staticmethod
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def on_delete(req, resp, id_):
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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_NOTIFICATION_ID')
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# Verify User Session
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token = req.headers.get('TOKEN')
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user_uuid = req.headers.get('USER-UUID')
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if token is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.TOKEN_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
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if user_uuid is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.USER_UUID_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
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cnx = mysql.connector.connect(**config.myems_user_db)
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cursor = cnx.cursor()
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query = (" SELECT utc_expires "
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" FROM tbl_sessions "
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" WHERE user_uuid = %s AND token = %s")
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cursor.execute(query, (user_uuid, token,))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_SESSION_PLEASE_RE_LOGIN')
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else:
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utc_expires = row[0]
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if datetime.utcnow() > utc_expires:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.USER_SESSION_TIMEOUT')
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cursor.execute(" SELECT id "
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" FROM tbl_users "
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" WHERE uuid = %s ",
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(user_uuid,))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_USER_PLEASE_RE_LOGIN')
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else:
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user_id = row[0]
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cursor.execute(" SELECT id "
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" FROM tbl_notifications "
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" WHERE id = %s AND user_id = %s ", (id_, user_id))
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row = cursor.fetchone()
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if row is None:
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
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description='API.NOTIFICATION_NOT_FOUND')
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cursor.execute(" DELETE FROM tbl_notifications WHERE id = %s ", (id_,))
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cnx.commit()
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if cursor:
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cursor.close()
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if cnx:
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cnx.disconnect()
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resp.status = falcon.HTTP_204
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