190 lines
8.5 KiB
Python
190 lines
8.5 KiB
Python
import falcon
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import simplejson as json
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import mysql.connector
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from datetime import datetime, timedelta, timezone
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import base64
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import sys
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import config
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class AdvancedReportCollection:
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@staticmethod
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def __init__():
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"""Initializes Class"""
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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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####################################################################################################################
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# PROCEDURES
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# Step 1: valid parameters
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# Step 2: query advanced reports
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# Step 3: construct the result
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####################################################################################################################
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@staticmethod
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def on_get(req, resp):
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print(req.params)
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reporting_start_datetime_local = req.params.get('reportingperiodstartdatetime')
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reporting_end_datetime_local = req.params.get('reportingperiodenddatetime')
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################################################################################################################
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# Step 1: valid parameters
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################################################################################################################
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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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if reporting_start_datetime_local is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description="API.INVALID_REPORTING_PERIOD_START_DATETIME")
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else:
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reporting_start_datetime_local = str.strip(reporting_start_datetime_local)
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try:
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reporting_start_datetime_utc = datetime.strptime(reporting_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_REPORTING_PERIOD_START_DATETIME")
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if reporting_end_datetime_local is None:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description="API.INVALID_REPORTING_PERIOD_END_DATETIME")
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else:
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reporting_end_datetime_local = str.strip(reporting_end_datetime_local)
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try:
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reporting_end_datetime_utc = datetime.strptime(reporting_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_REPORTING_PERIOD_END_DATETIME")
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if reporting_start_datetime_utc >= reporting_end_datetime_utc:
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raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
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description='API.INVALID_REPORTING_PERIOD_END_DATETIME')
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################################################################################################################
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# Step 2: query advanced reports
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################################################################################################################
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cnx_reporting = mysql.connector.connect(**config.myems_reporting_db)
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cursor_reporting = cnx_reporting.cursor(dictionary=True)
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query = (" SELECT id, file_name, uuid, create_datetime_utc, file_type, file_object "
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" FROM tbl_reports_files "
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" WHERE create_datetime_utc >= %s AND create_datetime_utc < %s "
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" ORDER BY create_datetime_utc desc ")
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cursor_reporting.execute(query, (reporting_start_datetime_utc, reporting_end_datetime_utc))
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rows = cursor_reporting.fetchall()
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if cursor_reporting:
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cursor_reporting.close()
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if cnx_reporting:
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cnx_reporting.disconnect()
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################################################################################################################
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# Step 3: construct the result
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################################################################################################################
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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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# Base64 encode the bytes
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base64_encoded_data = base64.b64encode(row['file_object'])
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# get the Base64 encoded data using human-readable characters.
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base64_message = base64_encoded_data.decode('utf-8')
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create_datetime_local = row['create_datetime_utc'].replace(tzinfo=None) + \
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timedelta(minutes=timezone_offset)
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meta_result = {"id": row['id'],
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"file_name": row['file_name'],
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"uuid": row['uuid'],
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"create_datetime_local": create_datetime_local.isoformat(),
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"file_type": row['file_type'],
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"file_size_bytes": sys.getsizeof(row['file_object']),
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"file_bytes_base64": base64_message}
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result.append(meta_result)
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resp.body = json.dumps(result)
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class AdvancedReportItem:
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@staticmethod
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def __init__():
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"""Initializes Class"""
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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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if not id_.isdigit() or int(id_) <= 0:
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raise falcon.HTTPError(falcon.HTTP_400,
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title='API.BAD_REQUEST',
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description='API.INVALID_ADVANCED_REPORT_ID')
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cnx_reporting = mysql.connector.connect(**config.myems_reporting_db)
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cursor_reporting = cnx_reporting.cursor(dictionary=True)
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query = (" SELECT id, file_name, uuid, create_datetime_utc, file_type, file_object "
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" FROM tbl_reports_files "
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" WHERE id = %s ")
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cursor_reporting.execute(query, (id_,))
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row = cursor_reporting.fetchone()
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if cursor_reporting:
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cursor_reporting.close()
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if cnx_reporting:
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cnx_reporting.disconnect()
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if row is None:
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raise falcon.HTTPError(falcon.HTTP_404,
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title='API.NOT_FOUND',
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description='API.ADVANCED_REPORT_NOT_FOUND')
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# Base64 encode the bytes
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base64_encoded_data = base64.b64encode(row['file_object'])
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# get the Base64 encoded data using human-readable characters.
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base64_message = base64_encoded_data.decode('utf-8')
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result = {"id": row['id'],
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"file_name": row['file_name'],
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"uuid": row['uuid'],
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"create_datetime":
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row['create_datetime_utc'].replace(tzinfo=timezone.utc).timestamp() * 1000,
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"file_type": row['file_type'],
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"file_bytes_base64": base64_message}
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resp.body = json.dumps(result)
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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,
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title='API.BAD_REQUEST',
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description='API.INVALID_ADVANCED_REPORT_ID')
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cnx_reporting = mysql.connector.connect(**config.myems_reporting_db)
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cursor_reporting = cnx_reporting.cursor(dictionary=True)
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cursor_reporting.execute(" SELECT id "
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" FROM tbl_reports_files "
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" WHERE id = %s ", (id_,))
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if cursor_reporting.fetchone() is None:
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cursor_reporting.close()
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cnx_reporting.disconnect()
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raise falcon.HTTPError(falcon.HTTP_404,
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title='API.NOT_FOUND',
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description='API.ADVANCED_REPORT_NOT_FOUND')
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cursor_reporting.execute(" DELETE FROM tbl_reports_files "
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" WHERE id = %s ", (id_,))
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cnx_reporting.commit()
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if cursor_reporting:
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cursor_reporting.close()
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if cnx_reporting:
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cnx_reporting.disconnect()
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resp.status = falcon.HTTP_204
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