def post(self):
"""
This function creates new rebind subdomain from json looking something like this:
{
"ip_props": {
"1":{ # <= Order in which domains will be resolved
"ip": "88.23.99.110", # <= ip to resolve
"repeat": 3 # <= how many times
}
"2":{
"ip": "169.254.169.254",
"repeat": "4ever" # <= forever can be supplied to never stop resolving this domain
}
},
"name": "rbnd_test" # <= name (useful in web ui)
}
And half of the code just checks if input is correct if someone reading this has an
idea how to do it more efficently please contribute
"""
parser = reqparse.RequestParser()
parser.add_argument('ip_props',
help='This field cannot be blank wtf',
required=True,
location="json")
parser.add_argument('name',
help='This field cannot be blank wtf',
required=True,
location="json")
req_data = parser.parse_args()
"""
req_data['ip_props'] is a json in string so I need to load it :D
"""
data = json.loads(req_data['ip_props'].replace('\'', '"'))
"""
Validate input against base_schema
"""
req_data['ip_props'] = data
base_schema = {
"type": "object",
"properties": {
"ip_props": {
"type": "object"
},
"name": {
"type": "string",
"maxLength": 120
}
}
}
try:
validate(instance=req_data, schema=base_schema)
except jsonschema.exceptions.ValidationError:
return {
'message':
'Something went wrong, the supplied input doesn\'t seem to be valid'
}, 500
"""
Check if
- Less than 32 IPs are supplied
- Some retard can't count
"""
if not len(data.keys()) < 32:
return {'message': 'Something went wrong, max IPs: 32'}, 500
elif not checkKeys(data.keys()):
return {
'message':
f"Something went wrong, the str(numbers) go like this: ['1','2','3','4',...] and not {[x for x in data.keys()]}"
}, 500
"""
Iterate through every ip_prop and do some checks - details are in comments below
"""
for i in data.keys():
"""
This schema checks if
- repeat is "4ever" or integer greater or equal to 1
- ip and type is compatibile with one of A,AAAA and CNAME
"""
prop_schema = {
"type": "object",
"properties": {
"repeat": {
"anyOf": [{
"type": "integer",
"minimum": 1
}, {
"type": "string",
"pattern": "^4ever$"
}]
},
"ip": {
"type":
"string",
"anyOf": [{
"format": "ipv4"
}, {
"format": "ipv6"
}, {
"format": "idn-hostname"
}]
},
"type": {
"type":
"string",
"anyOf": [{
"pattern": "^A$"
}, {
"pattern": "^AAAA$"
}, {
"pattern": "^CNAME$"
}]
}
}
}
try:
validate(instance=data[i], schema=prop_schema)
except jsonschema.exceptions.ValidationError:
return {
'message':
f'Something went wrong, the supplied input doesn\'t seem to be valid in [`ip_props`][{int(i)-1}]'
}, 500
"""
Check if supplied record type matches ip
So 127.0.0.1 can't be CNAME
And google.com can't be answer for A :D
"""
record_funcs = {"CNAME": checkDomain, "A": ipv4, "AAAA": ipv6}
if not record_funcs[data[i]['type']](data[i]['ip']):
return {
'message':
f"data[{int(i)-1}]['ip'] has to be in {data[{int(i)-1}]['type']} format"
}, 500
"""
Then put the data together
Generate new uuid4
Put it in database and redis
Then return the whole domain
"""
# rbnd_json does not need name parameter - it's meant to be stored in redis and in props column in database
rbnd_json = {'ip_props': data, 'ip_to_resolve': '1', 'turn': -1}
uuid = uuid4().hex
if DnsModel.find_by_uuid(uuid):
"""
Just in case something bad happens
"""
return {
'message':
'An error occured, please try again (REALLY TRY AGAIN, server generated uuid that exists, I didn\'t know it was possible :d) If you get this error please send it to me on twitter @marek_geleta You can follow me too'
}, 500
new_uuid = DnsModel(username=get_jwt_identity(),
uuid=uuid,
props=json.dumps(rbnd_json),
name=req_data['name'])
try:
new_uuid.save_to_db()
setJson(uuid, rbnd_json)
return {"subdomain": f"{uuid}.{DOMAIN}"}
except:
return {'message': 'Something went wrong'}, 500
def post(self):
"""
This function creates new rebind subdomain from json looking something like this:
{
"ip_props": {
"1":{ # <= Order in which domains will be resolved
"ip": "88.23.99.110", # <= ip to resolve
"repeat": 3 # <= how many times
}
"2":{
"ip": "169.254.169.254",
"repeat": "4ever" # <= forever can be supplied to never stop resolving this domain
}
},
"name": "rbnd_test" # <= name (useful in web ui)
}
And half of the code just checks if input is correct if someone reading this has an
idea how to do it more efficently please contribute
"""
parser = reqparse.RequestParser()
parser.add_argument('ip_props',
help='This field cannot be blank wtf',
required=True,
location="json")
parser.add_argument('name',
help='This field cannot be blank wtf',
required=True,
location="json")
req_data = parser.parse_args()
"""
req_data['ip_props'] is a json in string so I need to load it :D
"""
data = json.loads(req_data['ip_props'].replace('\'', '"'))
"""
Check if
- Less than 32 IPs are supplied
- Some retard can't count
- Name is not longer than 64
"""
if not len(data.keys()) < 32:
return {'message': 'Something went wrong, max IPs: 32'}, 500
elif not checkKeys(data.keys()):
return {
'message':
f"Something went wrong, the str(numbers) go like this: ['1','2','3','4',...] and not {[x for x in data.keys()]}"
}, 500
elif len(req_data['name']) > 64:
return {'message': 'Something went wrong, max name len: 64'}, 500
"""
Iterate through every ip_prop and check
"""
for i in data.keys():
"""
If repeat
- Is "4ever" or positive integer
- Is not 0 - kind of makes no sense to repeat it 0 times
"""
if (data[i]['repeat'] != '4ever' and type(data[i]['repeat']) != int
) or abs(data[i]['repeat']) != data[i]['repeat']:
repeat = data[i]['repeat']
return {
'message':
f'Something went wrong, `repeat` field can only hold positive integers or string `4ever` (in [`ip_props`][{i}][`repeat`])'
}, 500
elif data[i]['repeat'] == 0:
return {
'message':
f'How am I supposed to repeat it 0 times??? [`ip_props`][{i}][`repeat`]'
}, 500
"""
If ip
- Is in IPV4 format and if it's not a subnet
because the IP function is a bit weird and idk what to use :D
"""
try:
if IP(data[i]['ip']).version() == 4 and IP(
data[i]['ip']).strNormal(0) == str(IP(data[i]['ip'])):
data[i]['ip'] = IP(data[i]['ip']).strNormal(0)
else:
return {'message': 'IP has to be in IPV4 format'}, 500
except:
return {
'message':
f'An error occured, check [`ip_props`][{i}][`ip`] '
}, 500
"""
Then put the data together
Generate new uuid4
Put it in database and redis
Then return the whole domain
"""
rbnd_json = {'ip_props': data, 'ip_to_resolve': '1', 'turn': -1}
uuid = uuid4().hex
if DnsModel.find_by_uuid(uuid):
"""
Just in case something bad happens
"""
return {
'message':
'An error occured, please try again (REALLY TRY AGAIN, server generated uuid that exists, I didn\'t know it was possible :d) If you get this error please send it to me on twitter @marek_geleta You can follow me too'
}, 500
new_uuid = DnsModel(username=get_jwt_identity(),
uuid=uuid,
props=json.dumps(rbnd_json),
name=req_data['name'])
try:
new_uuid.save_to_db()
setJson(uuid, rbnd_json)
return {"subdomain": f"{uuid}.{DOMAIN}"}
except:
return {'message': 'Something went wrong'}, 500