/
views.py
728 lines (506 loc) · 24.6 KB
/
views.py
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# pylint: disable=line-too-long, no-member, unused-argument, bare-except
import arrow
import datetime
import hashlib
import json
import numpy
import pytz
import sys
from django.conf import settings
from django.contrib.admin.views.decorators import staff_member_required
from django.core.context_processors import csrf
from django.core.urlresolvers import reverse
from django.http import HttpResponse, UnreadablePostError
from django.shortcuts import render_to_response, get_object_or_404, redirect
from django.template import RequestContext
from django.utils import timezone
from django.views.decorators.cache import never_cache
from django.views.decorators.csrf import csrf_exempt
from purple_robot_app.forms import ExportJobForm
from purple_robot_app.models import PurpleRobotPayload, PurpleRobotTest, PurpleRobotEvent, \
PurpleRobotReport, PurpleRobotExportJob, PurpleRobotReading, \
PurpleRobotConfiguration, PurpleRobotDevice, PurpleRobotDeviceGroup, \
PurpleRobotDeviceNote
from purple_robot_app.performance import fetch_performance_samples, fetch_performance_users
@never_cache
def pr_config(request):
config = None
try:
device_id = request.GET['user_id']
device = PurpleRobotDevice.objects.get(device_id=device_id)
if device.configuration is not None:
config = device.configuration
elif device.device_group.configuration is not None:
config = device.device_group.configuration
device.config_last_fetched = datetime.datetime.now()
try:
device.config_last_user_agent = request.META['HTTP_USER_AGENT']
except KeyError:
device.config_last_user_agent = 'Unknown'
device.save()
except:
pass
if config is None:
config = get_object_or_404(PurpleRobotConfiguration, slug='default')
content_type = 'application/json'
if config.contents.strip().lower().startswith('(begin'):
content_type = 'text/x-scheme'
return HttpResponse(config.contents, content_type=content_type)
@csrf_exempt
@never_cache
def ingest_payload(request):
result = {}
result['Status'] = 'error'
result['Payload'] = "{}"
if request.method == 'POST':
try:
json_str = request.POST['json']
json_obj = json.loads(json_str)
payload_str = json_obj['Payload']
md5_hash = hashlib.md5()
md5_hash.update((json_obj['UserHash'] + json_obj['Operation'] + json_obj['Payload']).encode('utf-8'))
checksum_str = md5_hash.hexdigest()
result = {}
result['Status'] = 'error'
result['Payload'] = "{}"
if checksum_str == json_obj['Checksum']:
result['Status'] = 'success'
try:
payload_json = json.loads(payload_str)
payload = PurpleRobotPayload(payload=json.dumps(payload_json, indent=2, ensure_ascii=False), user_id=json_obj['UserHash'])
payload.save()
md5_hash = hashlib.md5()
md5_hash.update(result['Status'] + result['Payload'])
result['Checksum'] = md5_hash.hexdigest()
if 'media_url' in payload_str:
payload.ingest_readings()
for key, value in request.FILES.iteritems():
reading = PurpleRobotReading.objects.filter(guid=key).first()
if reading is not None:
reading.attachment.save(value.name, value)
reading.size = len(reading.payload)
reading.size += reading.attachment.size
reading.save()
except ValueError:
result['Status'] = 'error'
result['Error'] = 'Unable to parse payload.'
else:
result['Error'] = 'Source checksum ' + json_obj['Checksum'] + ' doesn\'t match destination checksum ' + checksum_str + '.'
except UnreadablePostError, error:
result['Error'] = str(error)
else:
result['Error'] = 'GET requests not supported.'
return HttpResponse(json.dumps(result), content_type='application/json')
@csrf_exempt
@never_cache
def ingest_payload_print(request):
result = {}
result['Status'] = 'error'
result['Payload'] = "{}"
try:
json_str = request.POST['json']
json_obj = json.loads(json_str)
md5_hash = hashlib.md5()
md5_hash.update((json_obj['UserHash'] + json_obj['Operation'] + json_obj['Payload']).encode('utf-8'))
checksum_str = md5_hash.hexdigest()
result = {}
result['Status'] = 'error'
result['Payload'] = "{}"
if checksum_str == json_obj['Checksum']:
result['Status'] = 'success'
md5_hash = hashlib.md5()
md5_hash.update(result['Status'] + result['Payload'])
result['Checksum'] = md5_hash.hexdigest()
else:
result['Error'] = 'Source checksum ' + json_obj['Checksum'] + ' doesn\'t match destination checksum ' + checksum_str + '.'
except:
error = sys.exc_info()[0]
result['Error'] = str(error)
return HttpResponse(json.dumps(result), content_type='application/json')
@csrf_exempt
@never_cache
def log_event(request):
try:
here_tz = pytz.timezone(settings.TIME_ZONE)
payload = json.loads(request.POST['json'])
tz = pytz.timezone(settings.TIME_ZONE)
logged = tz.localize(datetime.datetime.fromtimestamp(int(payload['timestamp'])))
if PurpleRobotEvent.objects.filter(logged=logged, event=payload['event_type']).count() == 0:
try:
if len(payload['user_id'].strip()) == 0:
payload['user_id'] = '-'
except KeyError:
payload['user_id'] = '-'
event = PurpleRobotEvent(payload=json.dumps(payload, indent=2))
event.logged = logged
event.event = payload['event_type']
event.user_id = payload['user_id']
try:
event.save()
except pytz.AmbiguousTimeError:
pass
return HttpResponse(json.dumps({'result': 'success'}), content_type='application/json')
except UnreadablePostError:
return HttpResponse(json.dumps({'result': 'error', 'message': 'Unreadable POST request'}), content_type='application/json')
return HttpResponse(json.dumps({'result': 'error', 'message': 'Unknown error'}), content_type='application/json')
@staff_member_required
@never_cache
def test_report(request, slug):
context = RequestContext(request)
context['test'] = get_object_or_404(PurpleRobotTest, slug=slug)
return render_to_response('purple_robot_test.html', context)
@staff_member_required
@never_cache
def tests_by_user(request, user_id):
context = RequestContext(request)
context['tests'] = PurpleRobotTest.objects.filter(user_id=user_id)
context['user_id'] = user_id
context['success'] = True
for test in context['tests']:
if test.active and test.passes() == False:
context['success'] = False
return render_to_response('purple_robot_tests.html', context)
@staff_member_required
@never_cache
def tests_all(request):
context = RequestContext(request)
context['tests'] = PurpleRobotTest.objects.order_by('-last_updated')
context['user_id'] = 'All'
context['success'] = True
for test in context['tests']:
if test.active and test.passes() == False:
context['success'] = False
return render_to_response('purple_robot_tests.html', context)
@staff_member_required
@never_cache
def pr_home(request):
context = RequestContext(request)
context['device_groups'] = PurpleRobotDeviceGroup.objects.all()
context['unattached_devices'] = PurpleRobotDevice.objects.filter(device_group=None)
return render_to_response('purple_robot_home.html', context)
@staff_member_required
@never_cache
def pr_device(request, device_id):
context = RequestContext(request)
context['device'] = PurpleRobotDevice.objects.get(device_id=device_id)
context.update(csrf(request))
try:
context['pr_show_device_id_header'] = settings.PURPLE_ROBOT_SHOW_DEVICE_ID_HEADER
except KeyError:
context['pr_show_device_id_header'] = True
try:
context['pr_show_notes'] = settings.PURPLE_ROBOT_SHOW_NOTES
except KeyError:
context['pr_show_notes'] = True
return render_to_response('purple_robot_device.html', context)
@staff_member_required
@never_cache
def pr_device_probe(request, device_id, probe_name):
context = RequestContext(request)
context['device'] = PurpleRobotDevice.objects.get(device_id=device_id)
context['probe_name'] = probe_name
context['short_name'] = probe_name.split('.')[-1]
context['last_reading'] = PurpleRobotReading.objects.filter(user_id=context['device'].user_hash, probe=probe_name).order_by('-logged').first()
context['test'] = PurpleRobotTest.objects.filter(user_id=context['device'].user_hash, probe=probe_name).first()
context['last_readings'] = PurpleRobotReading.objects.filter(user_id=context['device'].user_hash, probe=probe_name).order_by('-logged')[:500]
context['visualization'] = context['device'].visualization_for_probe(probe_name)
try:
context['pr_show_device_id_header'] = settings.PURPLE_ROBOT_SHOW_DEVICE_ID_HEADER
except KeyError:
context['pr_show_device_id_header'] = True
try:
context['pr_show_notes'] = settings.PURPLE_ROBOT_SHOW_NOTES
except KeyError:
context['pr_show_notes'] = True
return render_to_response('purple_robot_device_probe.html', context)
@staff_member_required
@never_cache
def pr_by_probe(request):
return render_to_response('purple_robot_probe.html')
@staff_member_required
@never_cache
def pr_by_user(request):
users = {}
hashes = PurpleRobotReport.objects.order_by().values('user_id').distinct()
for user_hash in hashes:
user_id = user_hash['user_id']
user_dict = {}
for report in PurpleRobotReport.objects.filter(user_id=user_id).order_by('-generated'):
key = str(report) + '-' + report.mime_type
if (key in user_dict) is False:
user_dict[key] = report
users[user_id] = user_dict
context = RequestContext(request)
context['users'] = users
return render_to_response('purple_robot_user.html', context)
@staff_member_required
@never_cache
def test_details_json(request, slug):
results = []
test = PurpleRobotTest.objects.get(slug=slug)
cpu_frequency = {'color': 'rgba(0,0,128,0.25)', 'data': [], 'name': 'CPU Timestamps'}
sensor_frequency = {'color': 'rgba(128,0,0,0.75)', 'data': [], 'name': 'Sensor Timestamps'}
if request.method == 'GET':
timestamp = float(request.GET['timestamp'])
sample_date = datetime.datetime.utcfromtimestamp(timestamp)
delta = datetime.timedelta(seconds=450)
start = sample_date - delta
end = sample_date + delta
readings = PurpleRobotReading.objects.filter(probe=test.probe, user_id=test.user_id, logged__gte=start, logged__lte=end).order_by('logged')
sensor_stamps = []
cpu_stamps = []
for reading in readings:
payload = json.loads(reading.payload)
if 'SENSOR_TIMESTAMP' in payload:
for timestamp in payload['SENSOR_TIMESTAMP']:
if payload['PROBE'] == 'edu.northwestern.cbits.purple_robot_manager.probes.devices.PebbleProbe':
sensor_stamps.append(float(timestamp) / 1000)
else:
sensor_stamps.append(float(timestamp) / 1000000000)
if 'EVENT_TIMESTAMP' in payload:
for timestamp in payload['EVENT_TIMESTAMP']:
cpu_stamps.append(timestamp)
else:
cpu_stamps.append(payload['TIMESTAMP'])
if len(cpu_stamps) > 0:
cpu_stamps.sort()
start_cpu = cpu_stamps[0]
index = start_cpu
count = 0
cpu_data = []
for timestamp in cpu_stamps:
if timestamp < index + 1:
count += 1
else:
while timestamp > index + 1:
cpu_data.append({'x': index, 'y': count})
index += 1
count = 0
cpu_frequency['data'] = cpu_data
if len(sensor_stamps) > 0:
sensor_stamps.sort()
start_sensor = sensor_stamps[0]
new_sensor_stamps = []
for timestamp in sensor_stamps:
new_sensor_stamps.append(timestamp - start_sensor + start_cpu)
sensor_stamps = new_sensor_stamps
index = start_cpu
count = 0
sensor_data = []
for timestamp in sensor_stamps:
if timestamp < index + 1:
count += 1
else:
while timestamp > index + 1:
sensor_data.append({'x': index, 'y': count})
index += 1
count = 0
sensor_frequency['data'] = sensor_data
results.append(sensor_frequency)
results.append(cpu_frequency)
return HttpResponse(json.dumps(results), content_type='application/json')
@staff_member_required
@never_cache
def fetch_export_file(request, job_pk):
job = PurpleRobotExportJob.objects.get(pk=int(job_pk))
return redirect(job.export_file.url)
@staff_member_required
@never_cache
def create_export_job(request):
context = RequestContext(request)
context['form'] = ExportJobForm()
if request.method == 'POST':
form = ExportJobForm(request.POST)
if form.is_valid():
job = PurpleRobotExportJob(destination=form.cleaned_data.get('destination'),
start_date=form.cleaned_data.get('start_date'),
end_date=form.cleaned_data.get('end_date'))
probes = ''
for probe in form.cleaned_data.get('probes'):
if len(probes) > 0:
probes += '\n'
probes += probe
job.probes = probes
hashes = ''
for user_hash in form.cleaned_data.get('hashes'):
if len(user_hash) > 0:
hashes += '\n'
hashes += user_hash
job.users = hashes
job.save()
context['message'] = 'Export job queued successfully.'
else:
context['form'] = form
return render_to_response('purple_robot_export.html', context)
@staff_member_required
@never_cache
def pr_add_group(request):
if request.method == 'POST':
group_id = request.POST['group_id']
group_name = request.POST['group_name']
if group_id is None or len(group_id.strip()) == 0 or group_name is None or len(group_id.strip()) == 0:
request.session['pr_messages'] = ['Please provide a non-empty group name and identifier.']
elif PurpleRobotDeviceGroup.objects.filter(group_id=group_id).count() == 0:
group = PurpleRobotDeviceGroup(group_id=group_id, name=group_name)
group.save()
else:
request.session['pr_messages'] = ['Unable to create group. A group already exists with identifier "' + group_id + '".']
return redirect(reverse('pr_home'))
@staff_member_required
@never_cache
def pr_add_device(request, group_id):
group = PurpleRobotDeviceGroup.objects.filter(group_id=group_id).first()
if group is not None:
if request.method == 'POST':
device_id = request.POST['device_id']
device_name = request.POST['device_name']
if device_id is None or len(device_id.strip()) == 0 or device_name is None or len(device_name.strip()) == 0:
request.session['pr_messages'] = ['Please provide a non-empty device name and identifier.']
elif PurpleRobotDevice.objects.filter(device_id=device_id).count() == 0:
device = PurpleRobotDevice(device_id=device_id, name=device_name, device_group=group)
perf_data = json.loads(device.performance_metadata)
perf_data['latest_readings'] = {}
perf_data['latest_readings']['edu.northwestern.cbits.purple_robot_manager.probes.builtin.RobotHealthProbe'] = -1
perf_data['latest_readings']['edu.northwestern.cbits.purple_robot_manager.probes.builtin.BatteryProbe'] = -1
perf_data['latest_readings']['edu.northwestern.cbits.purple_robot_manager.probes.builtin.SoftwareInformationProbe'] = -1
perf_data['latest_readings']['edu.northwestern.cbits.purple_robot_manager.probes.builtin.HardwareInformationProbe'] = -1
device.performance_metadata = json.dumps(perf_data, indent=2)
device.save()
else:
request.session['pr_messages'] = ['Unable to create device. A device already exists with identifier "' + device_id + '".']
else:
request.session['pr_messages'] = ['Unable to locate group with identifier "' + group_id + '" and create new device.']
response = redirect(reverse('pr_home'))
return response
@staff_member_required
@never_cache
def pr_remove_device(request, group_id, device_id):
group = PurpleRobotDeviceGroup.objects.filter(pk=int(group_id)).first()
device = group.devices.filter(pk=int(device_id)).first()
if device is not None:
group.devices.remove(device)
group.save()
return redirect(reverse('pr_home'))
@staff_member_required
@never_cache
def pr_configurations(request):
context = RequestContext(request)
context.update(csrf(request))
context['configurations'] = PurpleRobotConfiguration.objects.all()
return render_to_response('purple_robot_configurations.html', context)
@staff_member_required
@never_cache
def pr_configuration(request, config_id):
context = RequestContext(request)
context.update(csrf(request))
context['config'] = get_object_or_404(PurpleRobotConfiguration, slug=config_id)
return render_to_response('purple_robot_configuration.html', context)
@staff_member_required
@never_cache
def pr_move_device(request):
group = PurpleRobotDeviceGroup.objects.filter(pk=int(request.POST['field_new_group'])).first()
device = PurpleRobotDevice.objects.filter(pk=int(request.POST['field_device_id'])).first()
if device is not None:
device.device_group = group
device.save()
return redirect(reverse('pr_home'))
@staff_member_required
@never_cache
def pr_add_note(request):
response = {'result': 'error', 'message': 'No note provided or other error. See server logs.'}
if request.method == 'POST':
device_id = request.POST['device_id']
note_contents = request.POST['note_contents']
device = PurpleRobotDevice.objects.filter(device_id=device_id).first()
if device is not None:
PurpleRobotDeviceNote(device=device, added=timezone.now(), note=note_contents).save()
response['message'] = 'Note added. Reloading page...'
response['result'] = 'success'
else:
response['message'] = 'Note not added. Device does not exist.'
return HttpResponse(json.dumps(response, indent=2), content_type='application/json')
@never_cache
def pr_status(request):
context = RequestContext(request)
context.update(csrf(request))
context['server_performance'] = fetch_performance_samples('system', 'server_performance')
context['ingest_performance'] = fetch_performance_samples('system', 'reading_ingestion_performance')
context['mirror_performance'] = fetch_performance_samples('system', 'reading_mirror_performance')
context['pending_ingest'] = fetch_performance_samples('system', 'pending_ingest_payloads')
context['pending_mirror'] = fetch_performance_samples('system', 'pending_mirror_payloads')
context['skipped_ingest'] = fetch_performance_samples('system', 'skipped_ingest_payloads')
context['skipped_mirror'] = fetch_performance_samples('system', 'skipped_mirror_payloads')
context['uploads_today'] = fetch_performance_samples('system', 'uploads_today')
context['uploads_hour'] = fetch_performance_samples('system', 'uploads_hour')
context['pending_mirror_ages'] = fetch_performance_samples('system', 'pending_mirror_ages')
context['pending_ingest_ages'] = fetch_performance_samples('system', 'pending_ingest_ages')
context['payload_uploads'] = fetch_performance_samples('system', 'payload_uploads')[-1]['counts']
context['timezone'] = settings.TIME_ZONE
here_tz = pytz.timezone(settings.TIME_ZONE)
now = arrow.get(timezone.now().astimezone(here_tz))
start_today = now.replace(hour=0, minute=0, second=0, microsecond=0).datetime
start_hour = now.datetime - datetime.timedelta(hours=1)
week_ago = timezone.now() - datetime.timedelta(days=7)
upload_seconds = (arrow.get(context['uploads_today'][-1]['sample_date']).datetime.astimezone(here_tz) - start_today).total_seconds()
context['now'] = now
context['start_today'] = start_today
context['start_hour'] = start_hour
context['upload_count'] = '-'
context['upload_rate'] = '-'
if len(context['uploads_today']) > 0:
context['upload_count'] = context['uploads_today'][-1]['count']
context['upload_rate'] = context['uploads_today'][-1]['count'] / upload_seconds
context['upload_seconds'] = upload_seconds
context['uploads_today'] = arrow.get(context['uploads_today'][-1]['sample_date']).datetime.astimezone(here_tz) # c['uploads_today'][-1]['sample_date']
upload_seconds = (arrow.get(context['uploads_hour'][-1]['sample_date']).datetime.astimezone(here_tz) - start_hour).total_seconds()
context['upload_hour_count'] = '-'
context['upload_hour_rate'] = '-'
if len(context['uploads_hour']) > 0:
context['upload_hour_count'] = context['uploads_hour'][-1]['count']
context['upload_hour_rate'] = context['uploads_hour'][-1]['count'] / upload_seconds
context['upload_hour_seconds'] = upload_seconds
context['uploads_hour'] = arrow.get(context['uploads_hour'][-1]['sample_date']).datetime.astimezone(here_tz) # c['uploads_hour'][-1]['sample_date']
active_count = 0
inactive_count = 0
for device in PurpleRobotDevice.objects.all():
last_reading = device.most_recent_reading('edu.northwestern.cbits.purple_robot_manager.probes.builtin.RobotHealthProbe')
if last_reading is not None and last_reading.logged > week_ago:
active_count += 1
else:
inactive_count += 1
context['active_devices'] = active_count
context['inactive_devices'] = inactive_count
day_items = []
hour_items = []
for item in context['ingest_performance']:
if arrow.get(item['sample_date']).datetime >= start_today:
day_items.append(item['num_extracted'] / (item['extraction_time'] + item['query_time']))
if arrow.get(item['sample_date']).datetime >= start_hour:
hour_items.append(item['num_extracted'] / (item['extraction_time'] + item['query_time']))
context['ingest_average_day'] = numpy.mean(day_items)
context['ingest_average_hour'] = numpy.mean(hour_items)
day_items = []
hour_items = []
for item in context['mirror_performance']:
if arrow.get(item['sample_date']).datetime >= start_today:
day_items.append(item['num_mirrored'] / (item['extraction_time'] + item['query_time']))
if arrow.get(item['sample_date']).datetime >= start_hour:
hour_items.append(item['num_mirrored'] / (item['extraction_time'] + item['query_time']))
if len(day_items) > 0:
context['mirror_average_day'] = numpy.mean(day_items)
if len(hour_items) > 0:
context['mirror_average_hour'] = numpy.mean(hour_items)
return render_to_response('purple_robot_status.html', context)
@staff_member_required
@never_cache
def pr_users(request):
context = RequestContext(request)
context.update(csrf(request))
context['groups'] = PurpleRobotDeviceGroup.objects.all().order_by('group_id')
context['unaffiliated'] = PurpleRobotDevice.objects.filter(device_group=None).order_by('device_id')
phantoms = fetch_performance_users()
for device in PurpleRobotDevice.objects.all():
if device.hash_key is not None and device.hash_key in phantoms:
del phantoms[device.hash_key]
context['phantoms'] = phantoms
return render_to_response('purple_robot_users.html', context)