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

Passed

Push — master ( c06163...23501b )

by Guangyu

created 2022-07-20 10:30 UTC

DataRepairFileCollection.on_post() F

↳ Parent: core.datarepairfile

Complexity

Conditions

Size

Total Lines	100
Code Lines	69

Duplication

Lines	100
Ratio	100 %

Importance

Changes

Metric	Value
eloc	69
dl	100
loc	100
rs	3.9545
c	0
b	0
f	0
cc	13
nop	2

How to fix Long Method Complexity

import falcon
import simplejson as json
import mysql.connector
import config
import uuid
from datetime import datetime, timezone, timedelta
import os
from core.useractivity import user_logger, access_control


class DataRepairFileCollection:

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

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

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

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

        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.text = json.dumps(result)

    @staticmethod
    @user_logger
    def on_post(req, resp):
        """Handles POST requests"""
        access_control(req)
        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_DATA_REPAIR_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.close()
            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.close()
                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.close()
            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_data_repair_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.close()

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


class DataRepairFileItem:

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

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

    @staticmethod
    def on_get(req, resp, id_):
        access_control(req)
        if not id_.isdigit() or int(id_) <= 0:
            raise falcon.HTTPError(falcon.HTTP_400,
                                   title='API.BAD_REQUEST',
                                   description='API.INVALID_DATA_REPAIR_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_data_repair_files "
                 " WHERE id = %s ")
        cursor.execute(query, (id_,))
        row = cursor.fetchone()
        cursor.close()
        cnx.close()
        if row is None:
            raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
                                   description='API.DATA_REPAIR_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.text = json.dumps(result)

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

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

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

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

        cursor.close()
        cnx.close()

        resp.status = falcon.HTTP_204


class DataRepairFileRestore:

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

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

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

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

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

        if row is None:
            raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
                                   description='API.DATA_REPAIR_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_DATA_REPAIR_FILE')
        resp.text = json.dumps('success')


1		import falcon
2		import simplejson as json
3		import mysql.connector
4		import config
5		import uuid
6		from datetime import datetime, timezone, timedelta
7		import os
8		from core.useractivity import user_logger, access_control
9
10
11	View Code Duplication	class DataRepairFileCollection:
		0 ignored issues – show Duplication introduced 2022-07-20 10:56 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 DataRepairFileCollection"""
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		access_control(req)
24		cnx = mysql.connector.connect(**config.myems_historical_db)
25		cursor = cnx.cursor()
26
27		query = (" SELECT id, file_name, uuid, upload_datetime_utc, status "
28		" FROM tbl_data_repair_files "
29		" ORDER BY upload_datetime_utc desc ")
30		cursor.execute(query)
31		rows = cursor.fetchall()
32		cursor.close()
33		cnx.close()
34
35		timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
36		if config.utc_offset[0] == '-':
37		timezone_offset = -timezone_offset
38
39		result = list()
40		if rows is not None and len(rows) > 0:
41		for row in rows:
42		upload_datetime_local = row[3].replace(tzinfo=timezone.utc) + timedelta(minutes=timezone_offset)
43		meta_result = {"id": row[0],
44		"file_name": row[1],
45		"uuid": row[2],
46		"upload_datetime": upload_datetime_local.strftime('%Y-%m-%dT%H:%M:%S'),
47		"status": row[4]}
48		result.append(meta_result)
49
50		resp.text = json.dumps(result)
51
52		@staticmethod
53		@user_logger
54		def on_post(req, resp):
55		"""Handles POST requests"""
56		access_control(req)
57		try:
58		upload = req.get_param('file')
59		# Read upload file as binary
60		raw_blob = upload.file.read()
61
62		# Retrieve filename
63		filename = upload.filename
64		file_uuid = str(uuid.uuid4())
65
66		# Define file_path
67		file_path = os.path.join(config.upload_path, file_uuid)
68
69		# Write to a temporary file to prevent incomplete files from
70		# being used.
71		temp_file_path = file_path + '~'
72
73		open(temp_file_path, 'wb').write(raw_blob)
74
75		# Now that we know the file has been fully saved to disk
76		# move it into place.
77		os.rename(temp_file_path, file_path)
78
79		except Exception as ex:
80		raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR',
81		description='API.FAILED_TO_UPLOAD_DATA_REPAIR_FILE')
82
83		# Verify User Session
84		token = req.headers.get('TOKEN')
85		user_uuid = req.headers.get('USER-UUID')
86		if token is None:
87		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
88		description='API.TOKEN_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
89		if user_uuid is None:
90		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
91		description='API.USER_UUID_NOT_FOUND_IN_HEADERS_PLEASE_LOGIN')
92
93		cnx = mysql.connector.connect(**config.myems_user_db)
94		cursor = cnx.cursor()
95
96		query = (" SELECT utc_expires "
97		" FROM tbl_sessions "
98		" WHERE user_uuid = %s AND token = %s")
99		cursor.execute(query, (user_uuid, token,))
100		row = cursor.fetchone()
101
102		if row is None:
103		if cursor:
104		cursor.close()
105		if cnx:
106		cnx.close()
107		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
108		description='API.INVALID_SESSION_PLEASE_RE_LOGIN')
109		else:
110		utc_expires = row[0]
111		if datetime.utcnow() > utc_expires:
112		if cursor:
113		cursor.close()
114		if cnx:
115		cnx.close()
116		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
117		description='API.USER_SESSION_TIMEOUT')
118
119		cursor.execute(" SELECT id "
120		" FROM tbl_users "
121		" WHERE uuid = %s ",
122		(user_uuid,))
123		row = cursor.fetchone()
124		if row is None:
125		if cursor:
126		cursor.close()
127		if cnx:
128		cnx.close()
129		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
130		description='API.INVALID_USER_PLEASE_RE_LOGIN')
131		else:
132		user_id = row[0]
133
134		cnx = mysql.connector.connect(**config.myems_historical_db)
135		cursor = cnx.cursor()
136
137		add_values = (" INSERT INTO tbl_data_repair_files "
138		" (file_name, uuid, upload_datetime_utc, status, file_object ) "
139		" VALUES (%s, %s, %s, %s, %s) ")
140		cursor.execute(add_values, (filename,
141		file_uuid,
142		datetime.utcnow(),
143		'new',
144		raw_blob))
145		new_id = cursor.lastrowid
146		cnx.commit()
147		cursor.close()
148		cnx.close()
149
150		resp.status = falcon.HTTP_201
151		resp.location = '/datarepairfiles/' + str(new_id)
152
153
154	View Code Duplication	class DataRepairFileItem:
		0 ignored issues – show Duplication introduced 2022-07-20 10:56 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
155		@staticmethod
156		def __init__():
157		""""Initializes DataRepairFileItem"""
158		pass
159
160		@staticmethod
161		def on_options(req, resp, id_):
162		resp.status = falcon.HTTP_200
163
164		@staticmethod
165		def on_get(req, resp, id_):
166		access_control(req)
167		if not id_.isdigit() or int(id_) <= 0:
168		raise falcon.HTTPError(falcon.HTTP_400,
169		title='API.BAD_REQUEST',
170		description='API.INVALID_DATA_REPAIR_FILE_ID')
171
172		cnx = mysql.connector.connect(**config.myems_historical_db)
173		cursor = cnx.cursor()
174
175		query = (" SELECT id, file_name, uuid, upload_datetime_utc, status "
176		" FROM tbl_data_repair_files "
177		" WHERE id = %s ")
178		cursor.execute(query, (id_,))
179		row = cursor.fetchone()
180		cursor.close()
181		cnx.close()
182		if row is None:
183		raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
184		description='API.DATA_REPAIR_FILE_NOT_FOUND')
185
186		timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
187		if config.utc_offset[0] == '-':
188		timezone_offset = -timezone_offset
189
190		upload_datetime_local = row[3].replace(tzinfo=timezone.utc) + timedelta(minutes=timezone_offset)
191
192		result = {"id": row[0],
193		"file_name": row[1],
194		"uuid": row[2],
195		"upload_datetime": upload_datetime_local.strftime('%Y-%m-%dT%H:%M:%S'),
196		"status": row[4]}
197		resp.text = json.dumps(result)
198
199		@staticmethod
200		@user_logger
201		def on_delete(req, resp, id_):
202		access_control(req)
203		if not id_.isdigit() or int(id_) <= 0:
204		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
205		description='API.INVALID_DATA_REPAIR_FILE_ID')
206
207		cnx = mysql.connector.connect(**config.myems_historical_db)
208		cursor = cnx.cursor()
209
210		cursor.execute(" SELECT uuid "
211		" FROM tbl_data_repair_files "
212		" WHERE id = %s ", (id_,))
213		row = cursor.fetchone()
214		if row is None:
215		cursor.close()
216		cnx.close()
217		raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
218		description='API.DATA_REPAIR_FILE_NOT_FOUND')
219
220		try:
221		file_uuid = row[0]
222		# Define file_path
223		file_path = os.path.join(config.upload_path, file_uuid)
224
225		# remove the file from disk
226		os.remove(file_path)
227		except Exception as ex:
228		# ignore exception and don't return API.DATA_REPAIR_FILE_NOT_FOUND error
229		pass
230
231		# Note: the energy data imported from the deleted file will not be deleted
232		cursor.execute(" DELETE FROM tbl_data_repair_files WHERE id = %s ", (id_,))
233		cnx.commit()
234
235		cursor.close()
236		cnx.close()
237
238		resp.status = falcon.HTTP_204
239
240
241	View Code Duplication	class DataRepairFileRestore:
		0 ignored issues – show Duplication introduced 2022-07-20 10:56 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
242		@staticmethod
243		def __init__():
244		""""Initializes DataRepairFileRestore"""
245		pass
246
247		@staticmethod
248		def on_options(req, resp, id_):
249		resp.status = falcon.HTTP_200
250
251		@staticmethod
252		def on_get(req, resp, id_):
253		access_control(req)
254		if not id_.isdigit() or int(id_) <= 0:
255		raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST',
256		description='API.INVALID_DATA_REPAIR_FILE_ID')
257
258		cnx = mysql.connector.connect(**config.myems_historical_db)
259		cursor = cnx.cursor()
260
261		query = (" SELECT uuid, file_object "
262		" FROM tbl_data_repair_files "
263		" WHERE id = %s ")
264		cursor.execute(query, (id_,))
265		row = cursor.fetchone()
266		cursor.close()
267		cnx.close()
268
269		if row is None:
270		raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
271		description='API.DATA_REPAIR_FILE_NOT_FOUND')
272
273		result = {"uuid": row[0],
274		"file_object": row[1]}
275		try:
276		raw_blob = result["file_object"]
277		file_uuid = result["uuid"]
278
279		# Define file_path
280		file_path = os.path.join(config.upload_path, file_uuid)
281
282		# Write to a temporary file to prevent incomplete files from
283		# being used.
284		temp_file_path = file_path + '~'
285
286		open(temp_file_path, 'wb').write(raw_blob)
287
288		# Now that we know the file has been fully saved to disk
289		# move it into place.
290		os.replace(temp_file_path, file_path)
291		except Exception as ex:
292		raise falcon.HTTPError(falcon.HTTP_400, title='API.ERROR',
293		description='API.FAILED_TO_RESTORE_DATA_REPAIR_FILE')
294		resp.text = json.dumps('success')
295

MyEMS / myems

Push — master ( c06163...23501b )

DataRepairFileCollection.on_post() F

Complexity

Size

Duplication

Importance

How to fix Long Method Complexity

Long Method

Complexity

Duplication Side-by-Side

Filter issues like