myems-api/core/protocol.py
import re
import uuid
from datetime import datetime, timedelta
import falcon
import mysql.connector
import simplejson as json
from core.useractivity import user_logger, admin_control, access_control, api_key_control
import config
class ProtocolCollection:
def __init__(self):
""""Initializes ContactCollection"""
pass
@staticmethod
def on_options(req, resp):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, code "
" FROM tbl_protocols "
" ORDER BY id ")
cursor.execute(query)
rows = cursor.fetchall()
cursor.close()
cnx.close()
result = list()
if rows is not None and len(rows) > 0:
for row in rows:
meta_result = {"id": row[0],
"name": row[1],
"code": row[2]}
result.append(meta_result)
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_post(req, resp):
"""Handles POST requests"""
admin_control(req)
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
if 'name' not in new_values['data'].keys() or \
not isinstance(new_values['data']['name'], str) or \
len(str.strip(new_values['data']['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_NAME')
name = str.strip(new_values['data']['name'])
if 'code' not in new_values['data'].keys() or \
not isinstance(new_values['data']['code'], str) or \
len(str.strip(new_values['data']['code'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_CODE')
code = str.strip(new_values['data']['code'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_protocols "
" WHERE name = %s ", (name,))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.PROTOCOL_NAME_IS_ALREADY_IN_USE')
cursor.execute(" SELECT code "
" FROM tbl_protocols "
" WHERE code = %s ", (code,))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.PROTOCOL_CODE_IS_ALREADY_IN_USE')
add_row = (" INSERT INTO tbl_protocols "
" (name, code) "
" VALUES (%s, %s) ")
cursor.execute(add_row, (name,
code))
new_id = cursor.lastrowid
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/protocols/' + str(new_id)
class ProtocolItem:
def __init__(self):
""""Initializes ContactItem"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, code "
" FROM tbl_protocols "
" WHERE id = %s ")
cursor.execute(query, (id_,))
row = cursor.fetchone()
cursor.close()
cnx.close()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.PROTOCOL_NOT_FOUND')
result = {"id": row[0],
"name": row[1],
"code": row[2]}
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_delete(req, resp, id_):
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_protocols "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.PROTOCOL_NOT_FOUND')
# TODO:
cursor.execute(" DELETE FROM tbl_protocols WHERE id = %s ", (id_,))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_204
@staticmethod
@user_logger
def on_put(req, resp, id_):
"""Handles PUT requests"""
admin_control(req)
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_ID')
new_values = json.loads(raw_json)
if 'name' not in new_values['data'].keys() or \
not isinstance(new_values['data']['name'], str) or \
len(str.strip(new_values['data']['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_NAME')
name = str.strip(new_values['data']['name'])
if 'code' not in new_values['data'].keys() or \
not isinstance(new_values['data']['code'], str) or \
len(str.strip(new_values['data']['code'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_CODE')
code = str.strip(new_values['data']['code'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_protocols "
" WHERE id = %s ", (id_,))
if cursor.fetchone() is None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.PROTOCOL_NOT_FOUND')
cursor.execute(" SELECT name "
" FROM tbl_protocols "
" WHERE name = %s AND id != %s ", (name, id_))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.PROTOCOL_NAME_IS_ALREADY_IN_USE')
cursor.execute(" SELECT code "
" FROM tbl_protocols "
" WHERE code = %s AND id != %s ", (code, id_))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.PROTOCOL_CODE_IS_ALREADY_IN_USE')
update_row = (" UPDATE tbl_protocols "
" SET name = %s, code = %s "
" WHERE id = %s ")
cursor.execute(update_row, (name,
code,
id_,))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_200
class ProtocolExport:
def __init__(self):
""""Initializes ProtocolItem"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, code "
" FROM tbl_protocols "
" WHERE id = %s ")
cursor.execute(query, (id_,))
row = cursor.fetchone()
cursor.close()
cnx.close()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.PROTOCOL_NOT_FOUND')
result = {"id": row[0],
"name": row[1],
"code": row[2]}
resp.text = json.dumps(result)
class ProtocolImport:
def __init__(self):
""""Initializes ProtocolCollection"""
pass
@staticmethod
def on_options(req, resp):
resp.status = falcon.HTTP_200
@staticmethod
@user_logger
def on_post(req, resp):
"""Handles POST requests"""
admin_control(req)
try:
raw_json = req.stream.read().decode('utf-8')
except Exception as ex:
raise falcon.HTTPError(status=falcon.HTTP_400,
title='API.BAD_REQUEST',
description='API.FAILED_TO_READ_REQUEST_STREAM')
new_values = json.loads(raw_json)
if 'name' not in new_values.keys() or \
not isinstance(new_values['name'], str) or \
len(str.strip(new_values['name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_NAME')
name = str.strip(new_values['name'])
if 'code' not in new_values.keys() or \
not isinstance(new_values['code'], str) or \
len(str.strip(new_values['code'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_CODE')
code = str.strip(new_values['code'])
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
cursor.execute(" SELECT name "
" FROM tbl_protocols "
" WHERE name = %s ", (name,))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.PROTOCOL_NAME_IS_ALREADY_IN_USE')
cursor.execute(" SELECT code "
" FROM tbl_protocols "
" WHERE code = %s ", (code,))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.PROTOCOL_CODE_IS_ALREADY_IN_USE')
add_row = (" INSERT INTO tbl_protocols "
" (name, code) "
" VALUES (%s, %s) ")
cursor.execute(add_row, (name,
code))
new_id = cursor.lastrowid
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/protocols/' + str(new_id)
class ProtocolClone:
def __init__(self):
""""Initializes ProtocolItem"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
@user_logger
def on_post(req, resp, id_):
if 'API-KEY' not in req.headers or \
not isinstance(req.headers['API-KEY'], str) or \
len(str.strip(req.headers['API-KEY'])) == 0:
access_control(req)
else:
api_key_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PROTOCOL_ID')
cnx = mysql.connector.connect(**config.myems_system_db)
cursor = cnx.cursor()
query = (" SELECT id, name, code "
" FROM tbl_protocols "
" WHERE id = %s ")
cursor.execute(query, (id_,))
row = cursor.fetchone()
if row is None:
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.NOT_FOUND',
description='API.PROTOCOL_NOT_FOUND')
result = {"id": row[0],
"name": row[1],
"code": row[2]}
add_row = (" INSERT INTO tbl_protocols "
" (name, code) "
" VALUES (%s, %s) ")
timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
if config.utc_offset[0] == '-':
timezone_offset = -timezone_offset
new_name = (str.strip(result['name'])
+ (datetime.now()
+ timedelta(minutes=timezone_offset)).isoformat(sep='-', timespec='seconds'))
cursor.execute(add_row, (new_name,
result['code']))
new_id = cursor.lastrowid
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/protocols/' + str(new_id)