core.offlinemeterfile.OfflineMeterFileItem.on_get() - Code Metrics - Inspection of "Merge branch 'develop'" - MyEMS/myems - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( aaa290...76ee5c )

by Guangyu

created 2021-09-22 06:02 UTC

OfflineMeterFileItem.on_get() B

↳ Parent: core.offlinemeterfile

Complexity

Conditions

Size

Total Lines	33
Code Lines	26

Duplication

Lines	33
Ratio	100 %

Importance

Changes

Metric	Value
eloc	26
dl	33
loc	33
rs	8.7893
c	0
b	0
f	0
cc	5
nop	3

import falcon
import json
import mysql.connector
import config
import uuid
from datetime import datetime, timezone, timedelta
import os
from core.userlogger import user_logger


class OfflineMeterFileCollection:

    @staticmethod
    def __init__():
        """"Initializes OfflineMeterFileCollection"""
        pass

    @staticmethod
    def on_options(req, resp):
        resp.status = falcon.HTTP_200

    @staticmethod
    def on_get(req, resp):
        cnx = mysql.connector.connect(**config.myems_historical_db)
        cursor = cnx.cursor()

        query = (" SELECT id, file_name, uuid, upload_datetime_utc, status "
                 " FROM tbl_offline_meter_files "
                 " ORDER BY upload_datetime_utc desc ")
        cursor.execute(query)
        rows = cursor.fetchall()
        cursor.close()
        cnx.disconnect()

        timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
        if config.utc_offset[0] == '-':
            timezone_offset = -timezone_offset

        result = list()
        if rows is not None and len(rows) > 0:
            for row in rows:
                upload_datetime_local = row[3].replace(tzinfo=timezone.utc) + timedelta(minutes=timezone_offset)
                meta_result = {"id": row[0],
                               "file_name": row[1],
                               "uuid": row[2],
                               "upload_datetime": upload_datetime_local.strftime('%Y-%m-%dT%H:%M:%S'),
                               "status": row[4]}
                result.append(meta_result)

        resp.body = json.dumps(result)

    @staticmethod
    @user_logger
    def on_post(req, resp):
        """Handles POST requests"""
        try:
            upload = req.get_param('file')
            # Read upload file as binary
            raw_blob = upload.file.read()
            # Retrieve filename
            filename = upload.filename
            file_uuid = str(uuid.uuid4())

            # Define file_path
            file_path = os.path.join(config.upload_path, file_uuid)

            # Write to a temporary file to prevent incomplete files from
            # being used.
            temp_file_path = file_path + '~'

            open(temp_file_path, 'wb').write(raw_blob)

            # Now that we know the file has been fully saved to disk
            # move it into place.
            os.rename(temp_file_path, file_path)
        except Exception as ex:
            raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR',
                                   description='API.FAILED_TO_UPLOAD_OFFLINE_METER_FILE')

        # Verify User Session
        token = req.headers.get('TOKEN')
        user_uuid = req.headers.get('USER-UUID')
        if token is None:
            raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
                                   description='API.TOKEN_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
        if user_uuid is None:
            raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
                                   description='API.USER_UUID_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')

        cnx = mysql.connector.connect(**config.myems_user_db)
        cursor = cnx.cursor()

        query = (" SELECT utc_expires "
                 " FROM tbl_sessions "
                 " WHERE user_uuid = %s AND token = %s")
        cursor.execute(query, (user_uuid, token,))
        row = cursor.fetchone()

        if row is None:
            if cursor:
                cursor.close()
            if cnx:
                cnx.disconnect()
            raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
                                   description='API.INVALID_SESSION_PLEASE_RE_LOGIN')
        else:
            utc_expires = row[0]
            if datetime.utcnow() > utc_expires:
                if cursor:
                    cursor.close()
                if cnx:
                    cnx.disconnect()
                raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
                                       description='API.USER_SESSION_TIMEOUT')

        cursor.execute(" SELECT id "
                       " FROM tbl_users "
                       " WHERE uuid = %s ",
                       (user_uuid,))
        row = cursor.fetchone()
        if row is None:
            if cursor:
                cursor.close()
            if cnx:
                cnx.disconnect()
            raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
                                   description='API.INVALID_USER_PLEASE_RE_LOGIN')
        else:
            user_id = row[0]

        cnx = mysql.connector.connect(**config.myems_historical_db)
        cursor = cnx.cursor()

        add_values = (" INSERT INTO tbl_offline_meter_files "
                      " (file_name, uuid, upload_datetime_utc, status, file_object ) "
                      " VALUES (%s, %s, %s, %s, %s) ")
        cursor.execute(add_values, (filename,
                                    file_uuid,
                                    datetime.utcnow(),
                                    'new',
                                    raw_blob))
        new_id = cursor.lastrowid
        cnx.commit()
        cursor.close()
        cnx.disconnect()

        resp.status = falcon.HTTP_201
        resp.location = '/offlinemeterfiles/' + str(new_id)


class OfflineMeterFileItem:

    @staticmethod
    def __init__():
        """"Initializes OfflineMeterFileItem"""
        pass

    @staticmethod
    def on_options(req, resp, id_):
        resp.status = falcon.HTTP_200

    @staticmethod
    def on_get(req, resp, id_):
        if not id_.isdigit() or int(id_) <= 0:
            raise falcon.HTTPError(falcon.HTTP_400,
                                   title='API.BAD_REQUEST',
                                   description='API.INVALID_OFFLINE_METER_FILE_ID')

        cnx = mysql.connector.connect(**config.myems_historical_db)
        cursor = cnx.cursor()

        query = (" SELECT id, file_name, uuid, upload_datetime_utc, status "
                 " FROM tbl_offline_meter_files "
                 " WHERE id = %s ")
        cursor.execute(query, (id_,))
        row = cursor.fetchone()
        cursor.close()
        cnx.disconnect()
        if row is None:
            raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
                                   description='API.OFFLINE_METER_FILE_NOT_FOUND')

        timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
        if config.utc_offset[0] == '-':
            timezone_offset = -timezone_offset

        upload_datetime_local = row[3].replace(tzinfo=timezone.utc) + timedelta(minutes=timezone_offset)

        result = {"id": row[0],
                  "file_name": row[1],
                  "uuid": row[2],
                  "upload_datetime": upload_datetime_local.strftime('%Y-%m-%dT%H:%M:%S'),
                  "status": row[4]}
        resp.body = json.dumps(result)

    @staticmethod
    @user_logger
    def on_delete(req, resp, id_):
        if not id_.isdigit() or int(id_) <= 0:
            raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
                                   description='API.INVALID_OFFLINE_METER_FILE_ID')

        cnx = mysql.connector.connect(**config.myems_historical_db)
        cursor = cnx.cursor()

        cursor.execute(" SELECT uuid "
                       " FROM tbl_offline_meter_files "
                       " WHERE id = %s ", (id_,))
        row = cursor.fetchone()
        if row is None:
            cursor.close()
            cnx.disconnect()
            raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
                                   description='API.OFFLINE_METER_FILE_NOT_FOUND')

        try:
            file_uuid = row[0]
            # Define file_path
            file_path = os.path.join(config.upload_path, file_uuid)

            # remove the file from disk
            os.remove(file_path)
        except Exception as ex:
            # ignore exception and don't return API.OFFLINE_METER_FILE_NOT_FOUND error
            pass

        # Note: the energy data imported from the deleted file will not be deleted
        cursor.execute(" DELETE FROM tbl_offline_meter_files WHERE id = %s ", (id_,))
        cnx.commit()

        cursor.close()
        cnx.disconnect()

        resp.status = falcon.HTTP_204


class OfflineMeterFileRestore:

    @staticmethod
    def __init__():
        """"Initializes OfflineMeterFileRestore"""
        pass

    @staticmethod
    def on_options(req, resp, id_):
        resp.status = falcon.HTTP_200

    @staticmethod
    def on_get(req, resp, id_):
        if not id_.isdigit() or int(id_) <= 0:
            raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
                                   description='API.INVALID_OFFLINE_METER_FILE_ID')

        cnx = mysql.connector.connect(**config.myems_historical_db)
        cursor = cnx.cursor()

        query = (" SELECT uuid, file_object "
                 " FROM tbl_offline_meter_files "
                 " WHERE id = %s ")
        cursor.execute(query, (id_,))
        row = cursor.fetchone()
        cursor.close()
        cnx.disconnect()

        if row is None:
            raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
                                   description='API.OFFLINE_METER_FILE_NOT_FOUND')

        result = {"uuid": row[0],
                  "file_object": row[1]}
        try:
            raw_blob = result["file_object"]
            file_uuid = result["uuid"]

            # Define file_path
            file_path = os.path.join(config.upload_path, file_uuid)

            # Write to a temporary file to prevent incomplete files from
            # being used.
            temp_file_path = file_path + '~'

            open(temp_file_path, 'wb').write(raw_blob)

            # Now that we know the file has been fully saved to disk
            # move it into place.
            os.replace(temp_file_path, file_path)
        except Exception as ex:
            raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR',
                                   description='API.FAILED_TO_RESTORE_OFFLINE_METER_FILE')
        resp.body = json.dumps('success')


1		import falcon
2		import json
3		import mysql.connector
4		import config
5		import uuid
6		from datetime import datetime, timezone, timedelta
7		import os
8		from core.userlogger import user_logger
9
10
11	View Code Duplication	class OfflineMeterFileCollection:
		0 ignored issues – show Duplication introduced 2021-03-02 03:54 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
12		@staticmethod
13		def __init__():
14		""""Initializes OfflineMeterFileCollection"""
15		pass
16
17		@staticmethod
18		def on_options(req, resp):
19		resp.status = falcon.HTTP_200
20
21		@staticmethod
22		def on_get(req, resp):
23		cnx = mysql.connector.connect(**config.myems_historical_db)
24		cursor = cnx.cursor()
25
26		query = (" SELECT id, file_name, uuid, upload_datetime_utc, status "
27		" FROM tbl_offline_meter_files "
28		" ORDER BY upload_datetime_utc desc ")
29		cursor.execute(query)
30		rows = cursor.fetchall()
31		cursor.close()
32		cnx.disconnect()
33
34		timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
35		if config.utc_offset[0] == '-':
36		timezone_offset = -timezone_offset
37
38		result = list()
39		if rows is not None and len(rows) > 0:
40		for row in rows:
41		upload_datetime_local = row[3].replace(tzinfo=timezone.utc) + timedelta(minutes=timezone_offset)
42		meta_result = {"id": row[0],
43		"file_name": row[1],
44		"uuid": row[2],
45		"upload_datetime": upload_datetime_local.strftime('%Y-%m-%dT%H:%M:%S'),
46		"status": row[4]}
47		result.append(meta_result)
48
49		resp.body = json.dumps(result)
50
51		@staticmethod
52		@user_logger
53		def on_post(req, resp):
54		"""Handles POST requests"""
55		try:
56		upload = req.get_param('file')
57		# Read upload file as binary
58		raw_blob = upload.file.read()
59		# Retrieve filename
60		filename = upload.filename
61		file_uuid = str(uuid.uuid4())
62
63		# Define file_path
64		file_path = os.path.join(config.upload_path, file_uuid)
65
66		# Write to a temporary file to prevent incomplete files from
67		# being used.
68		temp_file_path = file_path + '~'
69
70		open(temp_file_path, 'wb').write(raw_blob)
71
72		# Now that we know the file has been fully saved to disk
73		# move it into place.
74		os.rename(temp_file_path, file_path)
75		except Exception as ex:
76		raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR',
77		description='API.FAILED_TO_UPLOAD_OFFLINE_METER_FILE')
78
79		# Verify User Session
80		token = req.headers.get('TOKEN')
81		user_uuid = req.headers.get('USER-UUID')
82		if token is None:
83		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
84		description='API.TOKEN_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
85		if user_uuid is None:
86		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
87		description='API.USER_UUID_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
88
89		cnx = mysql.connector.connect(**config.myems_user_db)
90		cursor = cnx.cursor()
91
92		query = (" SELECT utc_expires "
93		" FROM tbl_sessions "
94		" WHERE user_uuid = %s AND token = %s")
95		cursor.execute(query, (user_uuid, token,))
96		row = cursor.fetchone()
97
98		if row is None:
99		if cursor:
100		cursor.close()
101		if cnx:
102		cnx.disconnect()
103		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
104		description='API.INVALID_SESSION_PLEASE_RE_LOGIN')
105		else:
106		utc_expires = row[0]
107		if datetime.utcnow() > utc_expires:
108		if cursor:
109		cursor.close()
110		if cnx:
111		cnx.disconnect()
112		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
113		description='API.USER_SESSION_TIMEOUT')
114
115		cursor.execute(" SELECT id "
116		" FROM tbl_users "
117		" WHERE uuid = %s ",
118		(user_uuid,))
119		row = cursor.fetchone()
120		if row is None:
121		if cursor:
122		cursor.close()
123		if cnx:
124		cnx.disconnect()
125		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
126		description='API.INVALID_USER_PLEASE_RE_LOGIN')
127		else:
128		user_id = row[0]
129
130		cnx = mysql.connector.connect(**config.myems_historical_db)
131		cursor = cnx.cursor()
132
133		add_values = (" INSERT INTO tbl_offline_meter_files "
134		" (file_name, uuid, upload_datetime_utc, status, file_object ) "
135		" VALUES (%s, %s, %s, %s, %s) ")
136		cursor.execute(add_values, (filename,
137		file_uuid,
138		datetime.utcnow(),
139		'new',
140		raw_blob))
141		new_id = cursor.lastrowid
142		cnx.commit()
143		cursor.close()
144		cnx.disconnect()
145
146		resp.status = falcon.HTTP_201
147		resp.location = '/offlinemeterfiles/' + str(new_id)
148
149
150	View Code Duplication	class OfflineMeterFileItem:
		0 ignored issues – show Duplication introduced 2021-03-02 03:54 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
151		@staticmethod
152		def __init__():
153		""""Initializes OfflineMeterFileItem"""
154		pass
155
156		@staticmethod
157		def on_options(req, resp, id_):
158		resp.status = falcon.HTTP_200
159
160		@staticmethod
161		def on_get(req, resp, id_):
162		if not id_.isdigit() or int(id_) <= 0:
163		raise falcon.HTTPError(falcon.HTTP_400,
164		title='API.BAD_REQUEST',
165		description='API.INVALID_OFFLINE_METER_FILE_ID')
166
167		cnx = mysql.connector.connect(**config.myems_historical_db)
168		cursor = cnx.cursor()
169
170		query = (" SELECT id, file_name, uuid, upload_datetime_utc, status "
171		" FROM tbl_offline_meter_files "
172		" WHERE id = %s ")
173		cursor.execute(query, (id_,))
174		row = cursor.fetchone()
175		cursor.close()
176		cnx.disconnect()
177		if row is None:
178		raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
179		description='API.OFFLINE_METER_FILE_NOT_FOUND')
180
181		timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
182		if config.utc_offset[0] == '-':
183		timezone_offset = -timezone_offset
184
185		upload_datetime_local = row[3].replace(tzinfo=timezone.utc) + timedelta(minutes=timezone_offset)
186
187		result = {"id": row[0],
188		"file_name": row[1],
189		"uuid": row[2],
190		"upload_datetime": upload_datetime_local.strftime('%Y-%m-%dT%H:%M:%S'),
191		"status": row[4]}
192		resp.body = json.dumps(result)
193
194		@staticmethod
195		@user_logger
196		def on_delete(req, resp, id_):
197		if not id_.isdigit() or int(id_) <= 0:
198		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
199		description='API.INVALID_OFFLINE_METER_FILE_ID')
200
201		cnx = mysql.connector.connect(**config.myems_historical_db)
202		cursor = cnx.cursor()
203
204		cursor.execute(" SELECT uuid "
205		" FROM tbl_offline_meter_files "
206		" WHERE id = %s ", (id_,))
207		row = cursor.fetchone()
208		if row is None:
209		cursor.close()
210		cnx.disconnect()
211		raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
212		description='API.OFFLINE_METER_FILE_NOT_FOUND')
213
214		try:
215		file_uuid = row[0]
216		# Define file_path
217		file_path = os.path.join(config.upload_path, file_uuid)
218
219		# remove the file from disk
220		os.remove(file_path)
221		except Exception as ex:
222		# ignore exception and don't return API.OFFLINE_METER_FILE_NOT_FOUND error
223		pass
224
225		# Note: the energy data imported from the deleted file will not be deleted
226		cursor.execute(" DELETE FROM tbl_offline_meter_files WHERE id = %s ", (id_,))
227		cnx.commit()
228
229		cursor.close()
230		cnx.disconnect()
231
232		resp.status = falcon.HTTP_204
233
234
235	View Code Duplication	class OfflineMeterFileRestore:
		0 ignored issues – show Duplication introduced 2021-07-19 08:43 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
236		@staticmethod
237		def __init__():
238		""""Initializes OfflineMeterFileRestore"""
239		pass
240
241		@staticmethod
242		def on_options(req, resp, id_):
243		resp.status = falcon.HTTP_200
244
245		@staticmethod
246		def on_get(req, resp, id_):
247		if not id_.isdigit() or int(id_) <= 0:
248		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
249		description='API.INVALID_OFFLINE_METER_FILE_ID')
250
251		cnx = mysql.connector.connect(**config.myems_historical_db)
252		cursor = cnx.cursor()
253
254		query = (" SELECT uuid, file_object "
255		" FROM tbl_offline_meter_files "
256		" WHERE id = %s ")
257		cursor.execute(query, (id_,))
258		row = cursor.fetchone()
259		cursor.close()
260		cnx.disconnect()
261
262		if row is None:
263		raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
264		description='API.OFFLINE_METER_FILE_NOT_FOUND')
265
266		result = {"uuid": row[0],
267		"file_object": row[1]}
268		try:
269		raw_blob = result["file_object"]
270		file_uuid = result["uuid"]
271
272		# Define file_path
273		file_path = os.path.join(config.upload_path, file_uuid)
274
275		# Write to a temporary file to prevent incomplete files from
276		# being used.
277		temp_file_path = file_path + '~'
278
279		open(temp_file_path, 'wb').write(raw_blob)
280
281		# Now that we know the file has been fully saved to disk
282		# move it into place.
283		os.replace(temp_file_path, file_path)
284		except Exception as ex:
285		raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR',
286		description='API.FAILED_TO_RESTORE_OFFLINE_METER_FILE')
287		resp.body = json.dumps('success')
288

MyEMS / myems

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OfflineMeterFileItem.on_get() B

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