myems-api/core/emailserver.py
import base64
import re
import falcon
import mysql.connector
import simplejson as json
from core.useractivity import user_logger, admin_control
import config
class EmailServerCollection:
def __init__(self):
""""Initializes EmailServerCollection"""
pass
@staticmethod
def on_options(req, resp):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp):
admin_control(req)
cnx = mysql.connector.connect(**config.myems_fdd_db)
cursor = cnx.cursor()
query = (" SELECT id, host, port, requires_authentication, user_name, password, from_addr "
" FROM tbl_email_servers ")
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],
"host": row[1],
"port": row[2],
"requires_authentication": bool(row[3]),
"user_name": row[4],
"password": str(base64.b64decode(bytearray(row[5], 'utf-8')), 'utf-8')
if row[5] is not None else None,
"from_addr": row[6]}
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 'host' not in new_values['data'].keys() or \
not isinstance(new_values['data']['host'], str) or \
len(str.strip(new_values['data']['host'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_EMAIL_SERVER_HOST')
host = str.strip(new_values['data']['host'])
if 'port' not in new_values['data'].keys() or \
not isinstance(new_values['data']['port'], int) or \
new_values['data']['port'] <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PORT')
port = float(new_values['data']['port'])
if 'requires_authentication' not in new_values['data'].keys() or \
not isinstance(new_values['data']['requires_authentication'], bool):
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_REQUIRES_AUTHENTICATION')
requires_authentication = new_values['data']['requires_authentication']
if requires_authentication:
if 'user_name' not in new_values['data'].keys() or \
not isinstance(new_values['data']['user_name'], str) or \
len(str.strip(new_values['data']['user_name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_USER_NAME')
user_name = new_values['data']['user_name']
else:
user_name = None
if requires_authentication:
if 'password' not in new_values['data'].keys() or \
not isinstance(new_values['data']['password'], str) or \
len(str.strip(new_values['data']['password'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PASSWORD')
password = base64.b64encode(bytearray(new_values['data']['password'], 'utf-8'))
else:
password = None
if 'from_addr' not in new_values['data'].keys() or \
not isinstance(new_values['data']['from_addr'], str) or \
len(str.strip(new_values['data']['from_addr'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_FROM_ADDR')
from_addr = new_values['data']['from_addr']
match = re.match(r'^[_A-Za-z0-9-]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9-]+)*(\.[A-Za-z]{2,4})$',
from_addr)
if match is None:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_FROM_ADDR')
cnx = mysql.connector.connect(**config.myems_fdd_db)
cursor = cnx.cursor()
cursor.execute(" SELECT host "
" FROM tbl_email_servers "
" WHERE host = %s ", (host,))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.BAD_REQUEST',
description='API.EMAIL_SERVER_HOST_IS_ALREADY_IN_USE')
add_value = (" INSERT INTO tbl_email_servers "
" (host, port, requires_authentication, user_name, password, from_addr) "
" VALUES (%s, %s, %s, %s, %s, %s) ")
cursor.execute(add_value, (host,
port,
requires_authentication,
user_name,
password,
from_addr))
new_id = cursor.lastrowid
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_201
resp.location = '/emailservers/' + str(new_id)
class EmailServerItem:
def __init__(self):
""""Initializes EmailServerItem"""
pass
@staticmethod
def on_options(req, resp, id_):
resp.status = falcon.HTTP_200
@staticmethod
def on_get(req, resp, id_):
admin_control(req)
if not id_.isdigit() or int(id_) <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='400 Bad Request')
cnx = mysql.connector.connect(**config.myems_fdd_db)
cursor = cnx.cursor()
query = (" SELECT id, host, port, requires_authentication, user_name, password, from_addr "
" FROM tbl_email_servers "
" 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')
result = {"id": row[0],
"host": row[1],
"port": row[2],
"requires_authentication": bool(row[3]),
"user_name": row[4],
"password": str(base64.b64decode(bytearray(row[5], 'utf-8')), 'utf-8')
if row[5] is not None else None,
"from_addr": row[5]}
resp.text = json.dumps(result)
@staticmethod
@user_logger
def on_delete(req, resp, id_):
"""Handles DELETE requests"""
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_EMAIL_SERVER_ID')
cnx = mysql.connector.connect(**config.myems_fdd_db)
cursor = cnx.cursor()
cursor.execute(" SELECT host "
" FROM tbl_email_servers "
" 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.EMAIL_SERVER_NOT_FOUND')
cursor.execute(" DELETE FROM tbl_email_servers 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_EMAIL_SERVER_ID')
new_values = json.loads(raw_json)
if 'host' not in new_values['data'].keys() or \
not isinstance(new_values['data']['host'], str) or \
len(str.strip(new_values['data']['host'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_EMAIL_SERVER_HOST')
host = str.strip(new_values['data']['host'])
if 'port' not in new_values['data'].keys() or \
not isinstance(new_values['data']['port'], int) or \
new_values['data']['port'] <= 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PORT')
port = float(new_values['data']['port'])
if 'requires_authentication' not in new_values['data'].keys() or \
not isinstance(new_values['data']['requires_authentication'], bool):
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_REQUIRES_AUTHENTICATION')
requires_authentication = new_values['data']['requires_authentication']
if requires_authentication:
if 'user_name' not in new_values['data'].keys() or \
not isinstance(new_values['data']['user_name'], str) or \
len(str.strip(new_values['data']['user_name'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_USER_NAME')
user_name = new_values['data']['user_name']
else:
user_name = None
if requires_authentication:
if 'password' not in new_values['data'].keys() or \
not isinstance(new_values['data']['password'], str) or \
len(str.strip(new_values['data']['password'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_PASSWORD')
password = base64.b64encode(bytearray(new_values['data']['password'], 'utf-8'))
else:
password = None
if 'from_addr' not in new_values['data'].keys() or \
not isinstance(new_values['data']['from_addr'], str) or \
len(str.strip(new_values['data']['from_addr'])) == 0:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_FROM_ADDR')
from_addr = new_values['data']['from_addr']
match = re.match(r'^[_A-Za-z0-9-]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9-]+)*(\.[A-Za-z]{2,4})$',
from_addr)
if match is None:
raise falcon.HTTPError(status=falcon.HTTP_400, title='API.BAD_REQUEST',
description='API.INVALID_FROM_ADDR')
cnx = mysql.connector.connect(**config.myems_fdd_db)
cursor = cnx.cursor()
cursor.execute(" SELECT id "
" FROM tbl_email_servers "
" 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.EMAIL_SERVER_NOT_FOUND')
cursor.execute(" SELECT host "
" FROM tbl_email_servers "
" WHERE host = %s AND id != %s ", (host, id_))
if cursor.fetchone() is not None:
cursor.close()
cnx.close()
raise falcon.HTTPError(status=falcon.HTTP_404, title='API.BAD_REQUEST',
description='API.EMAIL_SERVER_HOST_IS_ALREADY_IN_USE')
update_row = (" UPDATE tbl_email_servers "
" SET host = %s, port = %s, requires_authentication = %s, "
" user_name = %s, password = %s, from_addr = %s "
" WHERE id = %s ")
cursor.execute(update_row, (host,
port,
requires_authentication,
user_name,
password,
from_addr,
id_,))
cnx.commit()
cursor.close()
cnx.close()
resp.status = falcon.HTTP_200