doorcontrol: Add task to periodically pull events from doors

This commit is contained in:
Adam Goldsmith 2023-11-08 12:34:11 -05:00
parent 215e2946d1
commit 96bcc80516
12 changed files with 470 additions and 7 deletions

View File

@ -0,0 +1,13 @@
import sys
from django_q.models import Schedule
def ensure_scheduled(name: str, func, **kwargs):
Schedule.objects.update_or_create(
name=name,
defaults={
"func": f"{func.__module__}.{func.__qualname__}",
**kwargs,
},
)

View File

@ -120,9 +120,15 @@ REST_FRAMEWORK = {
Q_CLUSTER = {
"name": "cmsmanage",
"orm": "default",
"retry": 360,
"timeout": 300,
"retry": 60 * 6,
"timeout": 60 * 5,
"catch_up": False,
"ALT_CLUSTERS": {
"internal": {},
"internal": {
"retry": 60 * 60,
"timeout": 60 * 59,
"ack_failures": True,
"max_attempts": 1,
},
},
}

View File

@ -5,3 +5,8 @@ class DoorControlConfig(AppConfig):
default_auto_field = "django.db.models.BigAutoField"
name = "doorcontrol"
verbose_name = "Door Control"
def ready(self):
from .tasks.scrapehidevents import schedule_tasks
schedule_tasks()

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@ -0,0 +1,41 @@
import bitstring
# Reference for H10301 card format:
# https://www.hidglobal.com/sites/default/files/hid-understanding_card_data_formats-wp-en.pdf
class Credential:
def __init__(self, code=None, hex=None):
if code is None and hex is None:
raise TypeError("Must set either code or hex for a Credential")
elif code is not None and hex is not None:
raise TypeError("Cannot set both code and hex for a Credential")
elif code is not None:
self.bits = bitstring.pack(
"0b000000, 0b0, uint:8=facility, uint:16=number, 0b0",
facility=code[0],
number=code[1],
)
self.bits[6] = self.bits[7:19].count(1) % 2 # even parity
self.bits[31] = not (self.bits[19:31].count(1) % 2) # odd parity
elif hex is not None:
self.bits = bitstring.Bits(hex=hex)
def __repr__(self):
return f"Credential({self.code})"
def __eq__(self, other):
return self.bits == other.bits
def __hash__(self):
return self.bits.int
@property
def code(self):
facility = self.bits[7:15].uint
code = self.bits[15:31].uint
return (facility, code)
@property
def hex(self):
return self.bits.hex.upper()

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@ -0,0 +1,239 @@
import csv
from datetime import datetime
from io import StringIO
import requests
import urllib3
from lxml import etree
from lxml.builder import ElementMaker
E_plain = ElementMaker(nsmap={"hid": "http://www.hidglobal.com/VertX"})
E = ElementMaker(
namespace="http://www.hidglobal.com/VertX",
nsmap={"hid": "http://www.hidglobal.com/VertX"},
)
E_corp = ElementMaker(
namespace="http://www.hidcorp.com/VertX", # stupid
nsmap={"hid": "http://www.hidcorp.com/VertX"},
)
ROOT = E_plain.VertXMessage
fieldnames = "CardNumber,CardFormat,PinRequired,PinCode,ExtendedAccess,ExpiryDate,Forename,Initial,Surname,Email,Phone,Custom1,Custom2,Schedule1,Schedule2,Schedule3,Schedule4,Schedule5,Schedule6,Schedule7,Schedule8".split(
","
)
# TODO: where should this live?
# it's fine, ssl certs are for losers anyway
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
class RemoteError(Exception):
def __init__(self, r):
super().__init__(f"Door Updating Error: {r.status_code} {r.reason}\n{r.text}")
class DoorController:
def __init__(self, ip, username, password):
self.ip = ip
self.username = username
self.password = password
def doImport(self, params=None, files=None):
"""Send a request to the door control import script"""
r = requests.post(
"https://" + self.ip + "/cgi-bin/import.cgi",
params=params,
files=files,
auth=requests.auth.HTTPDigestAuth(self.username, self.password),
timeout=60,
verify=False,
) # ignore insecure SSL
xml = etree.XML(r.content)
if (
r.status_code != 200
or len(xml.findall("{http://www.hidglobal.com/VertX}Error")) > 0
):
raise RemoteError(r)
def doCSVImport(self, csv):
"""Do the CSV import procedure on a door control"""
self.doImport({"task": "importInit"})
self.doImport(
{"task": "importCardsPeople", "name": "cardspeopleschedule.csv"},
{"importCardsPeopleButton": ("cardspeopleschedule.csv", csv, "text/csv")},
)
self.doImport({"task": "importDone"})
def doXMLRequest(self, xml, prefix=b'<?xml version="1.0" encoding="UTF-8"?>'):
if not isinstance(xml, bytes):
xml = etree.tostring(xml)
r = requests.get(
"https://" + self.ip + "/cgi-bin/vertx_xml.cgi",
params={"XML": prefix + xml},
auth=requests.auth.HTTPDigestAuth(self.username, self.password),
verify=False,
)
resp_xml = etree.XML(r.content)
# probably meed to be more sane about this
if r.status_code != 200 or len(resp_xml.findall("{*}Error")) > 0:
raise RemoteError(r)
return resp_xml
def get_scheduleMap(self):
schedules = self.doXMLRequest(
ROOT(E.Schedules({"action": "LR", "recordOffset": "0", "recordCount": "8"}))
)
return {
fmt.attrib["scheduleName"]: fmt.attrib["scheduleID"] for fmt in schedules[0]
}
def get_schedules(self):
# TODO: might be able to do in one request
schedules = self.doXMLRequest(ROOT(E.Schedules({"action": "LR"})))
etree.dump(schedules)
data = self.doXMLRequest(
ROOT(
*[
E.Schedules(
{"action": "LR", "scheduleID": schedule.attrib["scheduleID"]}
)
for schedule in schedules[0]
]
)
)
return ROOT(E_corp.Schedules({"action": "AD"}, *[s[0] for s in data]))
def set_schedules(self, schedules):
# clear all people
outString = StringIO()
writer = csv.DictWriter(outString, fieldnames)
writer.writeheader()
writer.writerow({})
outString.seek(0)
self.doCSVImport(outString)
# clear all schedules
delXML = ROOT(
*[
E.Schedules({"action": "DD", "scheduleID": str(ii)})
for ii in range(1, 8)
]
)
try:
self.doXMLRequest(delXML)
except RemoteError:
# don't care about failure to delete, they probably just didn't exist
pass
# load new schedules
self.doXMLRequest(schedules)
def get_cardFormats(self):
cardFormats = self.doXMLRequest(
ROOT(E.CardFormats({"action": "LR", "responseFormat": "expanded"}))
)
return {
fmt[0].attrib["value"]: fmt.attrib["formatID"]
for fmt in cardFormats[0].findall("{*}CardFormat[{*}FixedField]")
}
def set_cardFormat(self, formatName, templateID, facilityCode):
# TODO: add ability to delete formats
# delete example: <hid:CardFormats action="DD" formatID="7-1-244"/>
el = ROOT(
E.CardFormats(
{"action": "AD"},
E.CardFormat(
{"formatName": formatName, "templateID": str(templateID)},
E.FixedField({"value": str(facilityCode)}),
),
)
)
return self.doXMLRequest(el)
def get_records(self, req, count, params={}, stopFunction=None):
recordCount = 0
moreRecords = True
# note: all the "+/-1" bits are to work around a bug where the
# last returned entry is incomplete. There is probably a
# better way to do this, but for now I just get the last entry
# again in the next request. I suspect this probably ends
# poorly if the numbers line up poorly (ie an exact multiple
# of the returned record limit)
while True:
res = self.doXMLRequest(
ROOT(
req(
{
"action": "LR",
"recordCount": str(count - recordCount + 1),
"recordOffset": str(
recordCount - 1 if recordCount > 0 else 0
),
**params,
}
)
)
)
recordCount += int(res[0].get("recordCount")) - 1
moreRecords = res[0].get("moreRecords") == "true"
if moreRecords and (stopFunction is None or stopFunction(list(res[0]))):
yield list(res[0])[:-1]
else:
yield list(res[0])
break
def get_cardholders(self):
for page in self.get_records(
E.Cardholders, 1000, {"responseFormat": "expanded"}
):
yield from page
def get_credentials(self):
for page in self.get_records(E.Credentials, 1000):
yield from page
def update_credential(self, rawCardNumber: str, cardholderID: str):
return self.doXMLRequest(
ROOT(
E.Credentials(
{
"action": "UD",
"rawCardNumber": rawCardNumber,
"isCard": "true",
},
E.Credential({"cardholderID": cardholderID}),
)
)
)
def get_events(self, threshold):
def event_newer_than_threshold(event):
return datetime.fromisoformat(event.attrib["timestamp"]) > threshold
# These door controllers only store 5000 events max
for page in self.get_records(
E.EventMessages,
5000,
stopFunction=lambda events: event_newer_than_threshold(events[-1]),
):
events = [event for event in page if event_newer_than_threshold(event)]
if events:
yield events
def get_lock(self):
el = ROOT(E.Doors({"action": "LR", "responseFormat": "status"}))
xml = self.doXMLRequest(el)
relayState = xml.find("./{*}Doors/{*}Door").attrib["relayState"]
return "unlocked" if relayState == "set" else "locked"
def set_lock(self, lock=True):
el = ROOT(
E.Doors({"action": "CM", "command": "lockDoor" if lock else "unlockDoor"})
)
return self.doXMLRequest(el)

View File

View File

@ -0,0 +1,18 @@
# Generated by Django 4.2.5 on 2023-09-19 15:19
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
("doorcontrol", "0002_door_remove_hidevent_door_name_and_more"),
]
operations = [
migrations.AddField(
model_name="door",
name="ip",
field=models.GenericIPAddressField(default="", protocol="IPv4"),
preserve_default=False,
),
]

View File

@ -1,10 +1,14 @@
from datetime import datetime
from django.db import models
from django.db.models import ExpressionWrapper, F, Func, Q
from django.db.models.functions import Mod
from django.utils import timezone
class Door(models.Model):
name = models.CharField(max_length=64, unique=True)
ip = models.GenericIPAddressField(protocol="IPv4")
def __str__(self):
return self.name
@ -122,6 +126,31 @@ class HIDEvent(models.Model):
max_length=8, blank=True, null=True, db_column="rawCardNumber"
)
@classmethod
def from_xml_attributes(cls, door: Door, attrib: dict[str:str]):
field_lookup = {
field.column: field.attname for field in HIDEvent._meta.get_fields()
}
def attr_to_bool(str):
if str is None:
return None
else:
return str == "true"
return cls(
**{
**{field_lookup[k]: v for k, v in attrib.items()},
"door": door,
# fixups for specific attributes
"timestamp": timezone.make_aware(
datetime.fromisoformat(attrib["timestamp"])
),
"io_state": attr_to_bool(attrib.get("ioState")),
"command_status": attr_to_bool(attrib.get("commandStatus")),
}
)
@property
def description(self):
"""

View File

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@ -0,0 +1,54 @@
from datetime import datetime
from django.conf import settings
from django.db import transaction
from django.utils import timezone
from django_q.tasks import async_task
from django_q.models import Schedule
from cmsmanage.django_q2_helper import ensure_scheduled
from doorcontrol.models import Door, HIDEvent
from doorcontrol.hid.DoorController import DoorController
@transaction.atomic()
def getMessages(door: Door):
last_event = door.hidevent_set.order_by("timestamp").last()
if last_event is not None:
last_ts = timezone.make_naive(last_event.timestamp)
else:
last_ts = datetime(2010, 1, 1)
door_controller = DoorController(
door.ip,
settings.HID_DOOR_USERNAME,
settings.HID_DOOR_PASSWORD,
)
for events_page in door_controller.get_events(last_ts):
print(f"Importing {len(events_page)} events for {door.name}")
HIDEvent.objects.bulk_create(
(HIDEvent.from_xml_attributes(door, event.attrib) for event in events_page),
ignore_conflicts=True,
)
def q_getMessagesAllDoors():
# TODO: this should probably use async_iter
for door in Door.objects.all():
async_task(
getMessages,
door,
cluster="internal",
group=f"Fetch HID Events - {door.name}",
)
def schedule_tasks():
ensure_scheduled(
"Fetch HID Events",
q_getMessagesAllDoors,
schedule_type=Schedule.MINUTES,
minutes=15,
)

65
pdm.lock generated
View File

@ -3,10 +3,9 @@
[metadata]
groups = ["default", "debug", "lint", "server", "typing"]
cross_platform = true
static_urls = false
lock_version = "4.3"
content_hash = "sha256:c3404161808d837738b673f358588ae72e1b51f506b6f4e60d7ec8ef6b8e0e0c"
strategy = ["cross_platform"]
lock_version = "4.4"
content_hash = "sha256:22f2fbe3d0a5c19621ffbd542f27ba8755345d4a427b541285c22d09e752f7c3"
[[package]]
name = "asgiref"
@ -635,6 +634,64 @@ files = [
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]
[[package]]
name = "lxml"
version = "4.9.3"
requires_python = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, != 3.4.*"
summary = "Powerful and Pythonic XML processing library combining libxml2/libxslt with the ElementTree API."
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[[package]]
name = "markdown"
version = "3.4.1"

View File

@ -24,6 +24,7 @@ dependencies = [
"semver~=3.0",
"djangorestframework~=3.14",
"django-q2~=1.5",
"lxml~=4.9",
]
requires-python = ">=3.9"