2017-04-30 14:39:46 -06:00
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import csv
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2017-05-28 13:23:17 -06:00
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from datetime import datetime, timedelta
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2017-04-30 14:39:46 -06:00
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2017-03-31 02:32:03 -06:00
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from orbit import satellite
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2017-04-30 14:39:46 -06:00
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from django.conf import settings
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from django.core.mail import send_mail
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from django.template.loader import render_to_string
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2017-09-08 09:42:38 -06:00
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from django.utils.timezone import make_aware
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2017-04-30 14:39:46 -06:00
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from db.base.models import Satellite, DemodData
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2017-05-29 13:11:09 -06:00
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from db.celery import app
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2017-03-31 02:32:03 -06:00
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2017-05-29 13:11:09 -06:00
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@app.task(task_ignore_result=False)
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2017-03-31 02:32:03 -06:00
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def check_celery():
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"""Dummy celery task to check that everything runs smoothly."""
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pass
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2017-05-29 13:11:09 -06:00
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@app.task
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def update_all_tle():
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"""Task to update all satellite TLEs"""
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2017-03-31 02:32:03 -06:00
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satellites = Satellite.objects.all()
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for obj in satellites:
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try:
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sat = satellite(obj.norad_cat_id)
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except:
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continue
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tle = sat.tle()
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obj.tle1 = tle[1]
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obj.tle2 = tle[2]
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obj.save()
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2017-04-30 14:39:46 -06:00
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2017-05-29 13:11:09 -06:00
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@app.task
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2017-05-28 13:23:17 -06:00
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def export_frames(norad, email, uid, period=None):
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2017-04-30 14:39:46 -06:00
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"""Task to export satellite frames in csv."""
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now = datetime.utcnow()
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if period:
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if period == '1':
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q = now - timedelta(days=7)
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suffix = 'week'
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else:
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q = now - timedelta(days=30)
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suffix = 'month'
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q = make_aware(q)
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frames = DemodData.objects.filter(satellite__norad_cat_id=norad,
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timestamp__gte=q)
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else:
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frames = DemodData.objects.filter(satellite__norad_cat_id=norad)
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suffix = 'all'
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filename = '{0}-{1}-{2}-{3}.csv'.format(norad, uid, now.strftime('%Y%m%dT%H%M%SZ'), suffix)
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filepath = '{0}/download/{1}'.format(settings.MEDIA_ROOT, filename)
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with open(filepath, 'w') as f:
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writer = csv.writer(f, delimiter='|')
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for obj in frames:
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writer.writerow([obj.timestamp.strftime('%Y-%m-%d %H:%M:%S'),
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obj.display_frame()])
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2017-04-30 14:39:46 -06:00
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# Notify user
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subject = '[satnogs] Your request for exported frames is ready!'
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template = 'emails/exported_frames.txt'
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data = {
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'url': '{0}{1}download/{2}'.format(settings.SITE_URL,
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settings.MEDIA_URL, filename),
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'norad': norad
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}
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message = render_to_string(template, {'data': data})
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send_mail(subject, message, settings.DEFAULT_FROM_EMAIL, [email], False)
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