bin/djais/views.py

   1 # -*- coding: utf-8 -*-
   2
   3 from __future__ import division
   4
   5 #TODO
   6 #Normalize 403 errors
   7
   8 import os
   9 import os.path
  10 from datetime import *
  11 import re
  12 from time import time as get_timestamp, sleep
  13 import logging
  14 import crack
  15 import struct
  16 import operator
  17 import rrdtool
  18 import csv
  19 from StringIO import StringIO
  20 from django.http import *
  21 from django.template import loader, RequestContext
  22 from django import forms
  23 from django.shortcuts import render_to_response, get_object_or_404
  24 from django.utils.safestring import mark_safe
  25
  26 from decoratedstr import remove_decoration
  27
  28 from ais.area import list_areas
  29 from ais.djais.basicauth import http_authenticate
  30 from ais.djais.models import *
  31 from ais.show_targets_ships import format_fleet, kml_to_kmz
  32 from ais.common import COUNTRIES_MID, Nmea, NmeaFeeder, strmmsi_to_mmsi, SHIP_TYPES, STATUS_CODES, AIS_STATUS_NOT_AVAILABLE, AIS_ROT_NOT_AVAILABLE, AIS_LATLON_SCALE, AIS_LON_NOT_AVAILABLE, AIS_LAT_NOT_AVAILABLE, AIS_COG_SCALE, AIS_COG_NOT_AVAILABLE, AIS_NO_HEADING, AIS_SOG_SCALE, AIS_SOG_NOT_AVAILABLE, AIS_SOG_MAX_SPEED, add_nmea1, add_nmea5_partial, load_fleet_to_uset
  33 from ais.ntools import datetime_to_timestamp, clean_ais_charset
  34 from ais.inputs.common import is_id4_active
  35 from ais.inputs.stats import STATS_DIR
  36 from ais.inputs.config import peers_get_config
  37 from ais import jobrunner
  38 from ais.djais.widgets import *
  39
  40 def auth(username, raw_password):
  41     try:
  42         user = User.objects.get(login=username)
  43     except User.DoesNotExist:
  44         return None
  45     if not user.check_password(raw_password):
  46         return None
  47     user.update_access_datetime()
  48     return user
  49
  50
  51 @http_authenticate(auth, 'ais')
  52 def index(request):
  53     news = News.objects.order_by('-created')[:5]
  54     return render_to_response('index.html', {'news':news}, RequestContext(request))
  55
  56
  57 class VesselSearchForm(forms.Form):
  58     def country_choices():
  59         choices = {}
  60         for mid, countryname in COUNTRIES_MID.iteritems():
  61             if choices.has_key(countryname):
  62                 choices[countryname] += u','+unicode(mid)
  63             else:
  64                 choices[countryname] = unicode(mid)
  65         choices = [ (countryname, mids) for mids, countryname in choices.iteritems() ]
  66         choices = sorted(choices, key=operator.itemgetter(1))
  67         return [(u'', u'Any')] + choices
  68
  69     name = forms.CharField(max_length=20, required=False)
  70     mmsi = forms.CharField(help_text=u'Maritime Mobile Service Identity', min_length=9, max_length=9, required=False)
  71     imo = forms.IntegerField(help_text=u'International Maritime Organization identifier assigned by Llyod', required=False)
  72     callsign = forms.CharField(max_length=7, required=False)
  73     flag = forms.ChoiceField(choices=country_choices(), required=False)
  74     destination = forms.CharField(max_length=20, required=False)
  75
  76
  77     def clean(self):
  78         cleaned_data = self.cleaned_data
  79         for value in cleaned_data.values():
  80             if value:
  81                 return cleaned_data
  82         raise forms.ValidationError("You must enter at least one criteria")
  83
  84     def clean_mmsi(self):
  85         mmsi = self.cleaned_data['mmsi']
  86         if mmsi:
  87             try:
  88                 mmsi = strmmsi_to_mmsi(mmsi)
  89             except AssertionError:
  90                 raise forms.ValidationError("Invalid MMSI")
  91         return mmsi
  92
  93
  94 @http_authenticate(auth, 'ais')
  95 def vessel_search(request):
  96     if request.method == 'POST' or request.META['QUERY_STRING']:
  97         form = VesselSearchForm(request.REQUEST)
  98         if form.is_valid():
  99             data = form.cleaned_data
 100             vessels = Vessel.objects
 101             if data['mmsi']:
 102                 vessels = vessels.filter(mmsi=data['mmsi'])
 103             if data['name']:
 104                 vessels = vessels.filter(name__contains=data['name'].upper())
 105             if data['imo']:
 106                 vessels = vessels.filter(imo=data['imo'])
 107             if data['callsign']:
 108                 vessels = vessels.filter(callsign__contains=data['callsign'].upper())
 109             if data['destination']:
 110                 vessels = vessels.filter(destination__contains=data['destination'].upper())
 111             if data['flag']:
 112                 vessels = vessels.extra(where=['mmsi/1000000 IN (%s) ' % data['flag']])
 113             return render_to_response('vessels.html', {'vessels': vessels}, RequestContext(request))
 114     else: # GET
 115         form = VesselSearchForm()
 116
 117     return render_to_response('vessel_index.html', {'form': form}, RequestContext(request))
 118
 119 class SecondsWidget(forms.MultiWidget):
 120     '''
 121     A widget that splits period number and period type in a integer and a choice widgets
 122     Does not work well for more than a week, as month lengthes do vary.
 123     '''
 124     __periods = (
 125         (u'1', u'second(s)'),
 126         (u'60', u'minute(s)'),
 127         (u'3600', u'hour(s)'),
 128         (u'86400', u'day(s)'),
 129         (u'604800', u'week(s)'),
 130         (u'2592000', u'month(es)'))
 131
 132     def __init__(self, attrs=None):
 133         textattrs = { 'size': 3 }
 134         if attrs:
 135             textattrs.update(attrs)
 136         widgets = (
 137             forms.TextInput(attrs=textattrs),
 138             forms.Select(choices=self.__periods, attrs=attrs))
 139         super(SecondsWidget, self).__init__(widgets, attrs)
 140
 141     def decompress(self, value):
 142         if value:
 143             for period_second in reversed([int(sec_txt[0]) for sec_txt in self.__periods]):
 144                 if value >= period_second and not value % period_second:
 145                     return [ unicode(value // period_second), unicode(period_second) ]
 146         return [None, None]
 147
 148 class SecondsField(forms.MultiValueField):
 149     widget = SecondsWidget
 150
 151     def __init__(self, *args, **kargs):
 152         fields = (
 153             forms.IntegerField(),
 154             forms.CharField(),
 155         )
 156         forms.MultiValueField.__init__(self, fields=fields, *args, **kargs)
 157
 158     def compress(self, data_list):
 159         #print 'data_list=', data_list
 160         if data_list and data_list[0] is not None and data_list[1] is not None:
 161             try:
 162                 return data_list[0] * int(data_list[1])
 163             except ValueError:
 164                 pass
 165         return None
 166
 167 class HistoryForm(forms.Form):
 168     format = forms.ChoiceField(choices=(('animation', 'Animation (Google Earth v5)'), ('track', 'Track line (Google Earth)'), ('csv', 'Coma separated values (SpreadSheet)')), widget=forms.Select(attrs={'onchange': mark_safe("if (this.value=='csv') $('#csvhint').show(); else $('#csvhint').hide();")}))
 169     period_type = forms.ChoiceField(choices=(('duration', 'Duration until now'), ('date_date','Between two dates'), ('start_duration', 'Start date and duration')), widget=forms.RadioSelect(attrs={'onchange': mark_safe("show_hide_start_end_time(this.value);")}))
 170     start_date = forms.DateTimeField(required=False, widget=AisCalendarWidget(attrs={'class':'vDateField'}))
 171     duration = SecondsField(required=False, label='Period length', initial=7*86400)
 172     end_date = forms.DateTimeField(required=False, widget=AisCalendarWidget(attrs={'class':'vDateField'}))
 173     grain = SecondsField(label='One position every', initial=3600)
 174     filter_area = forms.ChoiceField(required=False, label='Only in area',
 175         choices=[ (u'', u'(Not filtered)') ] + [ (fn[1], fn[0]) for fn in list_areas() ] )
 176     filter_sog_le = forms.FloatField(required=False, label=u'Only if speed ≤ (knots)')
 177     filter_sog_ge = forms.FloatField(required=False, label=u'Only if speed ≥ (knots)')
 178
 179     def clean_start_date(self):
 180         period_type = self.cleaned_data.get('period_type', None)
 181         start_date = self.cleaned_data.get('start_date', None)
 182         if period_type in (u'date_date', u'start_duration') and start_date is None:
 183             raise forms.ValidationError('That is field is required.')
 184         return start_date
 185
 186     def clean_duration(self):
 187         period_type = self.cleaned_data.get('period_type', None)
 188         duration = self.cleaned_data.get('duration', None)
 189         print 'duration=', duration
 190         if period_type in (u'duration', u'start_duration') and duration is None:
 191             raise forms.ValidationError('That is field is required.')
 192         return duration
 193
 194     def clean_end_date(self):
 195         period_type = self.cleaned_data.get('period_type', None)
 196         end_date = self.cleaned_data.get('end_date', None)
 197         if period_type in (u'date_date',) and end_date is None:
 198             raise forms.ValidationError('That is field is required.')
 199         return end_date
 200
 201     def clean(self):
 202         cleaned_data = self.cleaned_data
 203         period_type = self.cleaned_data.get('period_type', None)
 204         start_date = self.cleaned_data.get('start_date', None)
 205         end_date = self.cleaned_data.get('end_date', None)
 206         if period_type == u'date_date' and start_date is not None and end_date is not None:
 207             if start_date >= end_date:
 208                 self._errors["start_date"] = self.error_class(['Start date must be before end date.'])
 209         return cleaned_data
 210
 211     def get_cmdext(self):
 212         '''
 213         Must not be called unless is_valid
 214         Returns (command, extension)
 215         '''
 216         data = self.cleaned_data
 217         format = data['format']
 218
 219         if format == u'track':
 220             command = u'show_targets_ships'
 221             command += u' --format=track'
 222             extension = u'kmz'
 223
 224         elif format == u'animation':
 225             command = u'show_targets_ships'
 226             command += u' --format=animation'
 227             extension = u'kmz'
 228
 229         elif format == u'csv':
 230             command = u'common'
 231             extension = u'csv'
 232         else:
 233             raise Http404(u'Invalid archive format')
 234
 235         date_start = data.get('start_date', None)
 236         if date_start:
 237             command += u' --start \'' + date_start.strftime('%Y%m%d') + u'\''
 238
 239         date_end = data.get('end_date', None)
 240         if date_end:
 241             command += u' --end \'' + date_end.strftime('%Y%m%d') + u'\''
 242
 243         duration = data.get('duration', None)
 244         if duration:
 245             command += u' --duration \'' + unicode(duration) + u'\''
 246
 247         grain = data['grain']
 248         command += u' --granularity ' + unicode(grain)
 249
 250         filter_area = data.get('filter_area', None)
 251         if filter_area:
 252             command += u' --filter-area \'' + filter_area + u'\''
 253
 254         filter_sog_le = data.get('filter_sog_le', None)
 255         if filter_sog_le:
 256             command += u' --filter-sog-le ' + unicode(filter_sog_le)
 257
 258         filter_sog_ge = data.get('filter_sog_ge', None)
 259         if filter_sog_ge:
 260             command += u' --filter-sog-ge ' + unicode(filter_sog_ge)
 261
 262         return command, extension
 263
 264
 265 @http_authenticate(auth, 'ais')
 266 def vessel(request, strmmsi):
 267     mmsi = strmmsi_to_mmsi(strmmsi)
 268     vessel = get_object_or_404(Vessel, pk=mmsi)
 269     nmea = Nmea.new_from_lastinfo(strmmsi)
 270     #if not nmea.timestamp_1 and not nmea.timestamp_5:
 271     #    raise Http404
 272     return render_to_response('vessel.html', {'nmea': nmea, 'form': HistoryForm()}, RequestContext(request))
 273
 274
 275 class VesselManualInputForm(forms.Form):
 276     timestamp = forms.DateTimeField(label=u'When', help_text=u'When was the observation made in GMT. Use YYYY-MM-DD HH:MM:SS format')
 277     imo = forms.IntegerField(required=False, min_value=1000000, max_value=9999999)
 278     name = forms.CharField(max_length=20, required=False)
 279     callsign = forms.CharField(max_length=7, required=False)
 280     type = forms.TypedChoiceField(required=False, choices = [ kv for kv in SHIP_TYPES.iteritems() if 'reserved' not in kv[1].lower()], coerce=int, empty_value=0, initial=0)
 281     status = forms.TypedChoiceField(required=False, choices = [ kv for kv in STATUS_CODES.iteritems() if 'reserved' not in kv[1].lower()], coerce=int, empty_value=AIS_STATUS_NOT_AVAILABLE, initial=AIS_STATUS_NOT_AVAILABLE)
 282     sog = forms.FloatField(label='Speed', help_text='Over ground, in knots', required=False, min_value=0, max_value=AIS_SOG_MAX_SPEED/AIS_SOG_SCALE)
 283     latitude = forms.CharField(required=False)
 284     longitude = forms.CharField(required=False)
 285     cog = forms.FloatField(label='Course', help_text='Over ground', required=False, min_value=0.0, max_value=359.9)
 286     heading = forms.IntegerField(required=False, min_value=0, max_value=359)
 287
 288     @staticmethod
 289     def _clean_ais_charset(ustr):
 290         ustr = remove_decoration(ustr) # benign cleaning, but can increase size (œ->oe)
 291         ustr = ustr.upper() # benign cleaning
 292         str = clean_ais_charset(ustr.encode('ascii', 'replace'))
 293         if unicode(str) != ustr:
 294             raise forms.ValidationError('Invalid character: AIS alphabet is @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^- !"#$%&\'()*+,-./0123456789:;<=>?')
 295         return str
 296
 297     def clean_timestamp(self):
 298         data = self.cleaned_data['timestamp']
 299         if data is None:
 300             return None
 301         if data < datetime.utcnow() - timedelta(365):
 302             raise forms.ValidationError('Date is too much is the past.')
 303         if data > datetime.utcnow():
 304             raise forms.ValidationError('Date is be in the future. This form is only for observed results.')
 305         return datetime_to_timestamp(data)
 306
 307     def clean_imo(self):
 308         data = self.cleaned_data['imo']
 309         if data is None:
 310             return 0
 311         return data
 312
 313     def clean_name(self):
 314         name = self.cleaned_data['name']
 315         if name is None:
 316             return ''
 317         name = VesselManualInputForm._clean_ais_charset(name)
 318         if len(name)>20:
 319             raise forms.ValidationError('Ensure this value has at most 20 characters (it has %s).' % len(name))
 320         return name
 321
 322     def clean_callsign(self):
 323         callsign = self.cleaned_data['callsign']
 324         if callsign is None:
 325             return ''
 326         callsign = VesselManualInputForm._clean_ais_charset(callsign)
 327         if len(callsign)>7:
 328             raise forms.ValidationError('Ensure this value has at most 7 characters (it has %s).' % len(callsign))
 329         return callsign
 330
 331     def clean_sog(self):
 332         sog = self.cleaned_data['sog']
 333         if sog is None:
 334             return AIS_SOG_NOT_AVAILABLE
 335         return int(sog*AIS_SOG_SCALE)
 336
 337     def clean_latitude(self):
 338         #TODO: use ntools.clean_latitude
 339         data = self.cleaned_data['latitude']
 340         data = data.replace(u"''", u'"') # common mistake
 341         data = data.replace(u' ', u'') # remove spaces
 342         sides = u'SN'
 343         if not data:
 344             return AIS_LAT_NOT_AVAILABLE
 345         tmp, side = data[:-1], data[-1]
 346         if side == sides[0]:
 347             side = -1
 348         elif side == sides[1]:
 349             side = 1
 350         else:
 351             raise forms.ValidationError(u'Last character must be either %s or %s.' % (sides[0], sides[1]))
 352         spl = tmp.split(u'°')
 353         if len(spl) == 1:
 354             raise forms.ValidationError(u'You need to use the ° character.')
 355         d, tmp = spl
 356         try:
 357             d = float(d)
 358         except ValueError:
 359             raise forms.ValidationError(u'Degrees must be an number. It\'s %s.' % d)
 360         spl = tmp.split(u"'", 1)
 361         if len(spl) == 1:
 362             # no ' sign: ok only if there is nothing but the side after °
 363             # we don't accept seconds if there is no minutes:
 364             # It might be an entry mistake
 365             tmp = spl[0]
 366             if len(tmp) == 0:
 367                 m = s = 0
 368             else:
 369                 raise forms.ValidationError(u'You must use the \' character between ° and %s.' % data[-1])
 370         else:
 371             m, tmp = spl
 372             try:
 373                 m = float(m)
 374             except ValueError:
 375                 raise forms.ValidationError(u'Minutes must be an number. It\'s %s.' % m)
 376             if len(tmp) == 0:
 377                 s = 0
 378             else:
 379                 if tmp[-1] != '"':
 380                     raise forms.ValidationError(u'You must use the " character between seconds and %s.' % data[-1])
 381                 s = tmp[:-1]
 382                 try:
 383                     s = float(s)
 384                 except ValueError:
 385                     raise forms.ValidationError(u'Seconds must be an number. It\'s %s.' % s)
 386         data = side * ( d + m / 60 + s / 3600)
 387
 388         if data < -90 or data > 90:
 389             raise forms.ValidationError(u'%s in not in -90..90 range' % data)
 390         return int(data * AIS_LATLON_SCALE)
 391
 392     def clean_longitude(self):
 393         #TODO: use ntools.clean_latitude
 394         data = self.cleaned_data['longitude']
 395         data = data.replace(u"''", u'"') # common mistake
 396         data = data.replace(u' ', u'') # remove spaces
 397         sides = u'WE'
 398         if not data:
 399             return AIS_LON_NOT_AVAILABLE
 400         tmp, side = data[:-1], data[-1]
 401         if side == sides[0]:
 402             side = -1
 403         elif side == sides[1]:
 404             side = 1
 405         else:
 406             raise forms.ValidationError(u'Last character must be either %s or %s.' % (sides[0], sides[1]))
 407         spl = tmp.split(u'°')
 408         if len(spl) == 1:
 409             raise forms.ValidationError(u'You need to use the ° character.')
 410         d, tmp = spl
 411         try:
 412             d = float(d)
 413         except ValueError:
 414             raise forms.ValidationError(u'Degrees must be an number. It\'s %s.' % d)
 415         spl = tmp.split(u"'", 1)
 416         if len(spl) == 1:
 417             # no ' sign: ok only if there is nothing but the side after °
 418             # we don't accept seconds if there is no minutes:
 419             # It might be an entry mistake
 420             tmp = spl[0]
 421             if len(tmp) == 0:
 422                 m = s = 0
 423             else:
 424                 raise forms.ValidationError(u'You must use the \' character between ° and %s.' % data[-1])
 425         else:
 426             m, tmp = spl
 427             try:
 428                 m = float(m)
 429             except ValueError:
 430                 raise forms.ValidationError(u'Minutes must be an number. It\'s %s.' % m)
 431             if len(tmp) == 0:
 432                 s = 0
 433             else:
 434                 if tmp[-1] != '"':
 435                     raise forms.ValidationError(u'You must use the " character between seconds and %s.' % data[-1])
 436                 s = tmp[:-1]
 437                 try:
 438                     s = float(s)
 439                 except ValueError:
 440                     raise forms.ValidationError(u'Seconds must be an number. It\'s %s.' % s)
 441         data = side * ( d + m / 60 + s / 3600)
 442
 443         if data < -180 or data > 180:
 444             raise forms.ValidationError(u'%s in not in -180..180 range' % data)
 445         return int(data * AIS_LATLON_SCALE)
 446
 447     def clean_cog(self):
 448         data = self.cleaned_data['cog']
 449         if data is None:
 450             return AIS_COG_NOT_AVAILABLE
 451         return int(data * AIS_COG_SCALE)
 452
 453     def clean_heading(self):
 454         #raise forms.ValidationError(u'clean_heading called')
 455         data = self.cleaned_data['heading']
 456         if data is None:
 457             return AIS_NO_HEADING
 458         return data
 459
 460     def clean(self):
 461         cleaned_data = self.cleaned_data
 462         if (cleaned_data.get('latitude', AIS_LAT_NOT_AVAILABLE) == AIS_LAT_NOT_AVAILABLE ) ^ ( cleaned_data.get('longitude', AIS_LON_NOT_AVAILABLE) == AIS_LON_NOT_AVAILABLE):
 463             raise forms.ValidationError('It makes no sense to enter just a latitude or a longitude. Enter both or none.')
 464         if cleaned_data.get('latitude', AIS_LAT_NOT_AVAILABLE) == AIS_LAT_NOT_AVAILABLE:
 465             if cleaned_data.get('status', AIS_STATUS_NOT_AVAILABLE) != AIS_STATUS_NOT_AVAILABLE:
 466                 raise forms.ValidationError('It makes no sense to enter a status without coordinates. Please enter latitute and longitude too.')
 467             if cleaned_data.get('sog', AIS_SOG_NOT_AVAILABLE) != AIS_SOG_NOT_AVAILABLE:
 468                 raise forms.ValidationError('It makes no sense to enter a speed without coordinates. Please enter latitute and longitude too.')
 469             if cleaned_data.get('cog', AIS_COG_NOT_AVAILABLE) != AIS_COG_NOT_AVAILABLE:
 470                 raise forms.ValidationError('It makes no sense to enter a course without coordinates. Please enter latitute and longitude too.')
 471             if cleaned_data.get('heading', AIS_NO_HEADING) != AIS_NO_HEADING:
 472                 raise forms.ValidationError('It makes no sense to enter a heading without coordinates. Please enter latitute and longitude too.')
 473
 474         if cleaned_data.get('timestamp', None) \
 475         and cleaned_data.get('imo', 0) == 0 \
 476         and cleaned_data.get('name', '') == '' \
 477         and cleaned_data.get('callsign', '') == '' \
 478         and cleaned_data.get('type', 0) == 0 \
 479         and cleaned_data.get('status', AIS_STATUS_NOT_AVAILABLE) == AIS_STATUS_NOT_AVAILABLE \
 480         and cleaned_data.get('sog', AIS_SOG_NOT_AVAILABLE) == AIS_SOG_NOT_AVAILABLE \
 481         and cleaned_data.get('latitude', AIS_LAT_NOT_AVAILABLE) == AIS_LAT_NOT_AVAILABLE \
 482         and cleaned_data.get('longitude', AIS_LON_NOT_AVAILABLE) == AIS_LON_NOT_AVAILABLE \
 483         and cleaned_data.get('cog', AIS_COG_NOT_AVAILABLE) == AIS_COG_NOT_AVAILABLE \
 484         and cleaned_data.get('heading', AIS_NO_HEADING) == AIS_NO_HEADING:
 485             raise forms.ValidationError("You must enter some data, beside when.")
 486         return cleaned_data
 487
 488 @http_authenticate(auth, 'ais')
 489 def vessel_manual_input(request, strmmsi):
 490     strmmsi = strmmsi.encode('utf-8')
 491     nmea = Nmea.new_from_lastinfo(strmmsi)
 492     if request.method == 'POST' or request.META['QUERY_STRING']:
 493         form = VesselManualInputForm(request.REQUEST)
 494         if form.is_valid():
 495             data = form.cleaned_data
 496             source = 'U' +  struct.pack('<I', request.user.id)[0:3]
 497             result = u''
 498             if data['imo'] != 0 \
 499             or data['name'] != '' \
 500             or data['callsign'] != '' \
 501             or data['type'] != 0:
 502                 toto = (strmmsi, data['timestamp'], data['imo'], data['name'], data['callsign'], data['type'], 0,0,0,0, 0,0,24,60, 0, '', source)
 503                 result += 'UPDATING NMEA 5: '+repr(toto)+'<br>'
 504                 add_nmea5_partial(*toto)
 505             if data['status'] != AIS_STATUS_NOT_AVAILABLE \
 506             or data['sog'] != AIS_SOG_NOT_AVAILABLE \
 507             or data['latitude'] != AIS_LAT_NOT_AVAILABLE \
 508             or data['longitude'] != AIS_LON_NOT_AVAILABLE \
 509             or data['cog'] != AIS_COG_NOT_AVAILABLE \
 510             or data['heading'] != AIS_NO_HEADING:
 511
 512                 toto = (strmmsi, data['timestamp'], data['status'], AIS_ROT_NOT_AVAILABLE, data['sog'], data['latitude'], data['longitude'], data['cog'], data['heading'], source)
 513                 result += 'UPDATING NMEA 1: '+repr(toto)+'<br>'
 514                 add_nmea1(*toto)
 515             return HttpResponse('Not fully implemented: '+repr(data) + '<br>' + result)
 516     else: # GET
 517         form = VesselManualInputForm()
 518     return render_to_response('vessel_manual_input.html', {'form': form, 'nmea': nmea}, RequestContext(request))
 519
 520
 521 @http_authenticate(auth, 'ais')
 522 def vessel_lastpos(request, strmmsi):
 523     value = kml_to_kmz(format_fleet([ strmmsi ], document_name=strmmsi).encode('utf-8'))
 524     response = HttpResponse(value, mimetype="application/vnd.google-earth.kmz")
 525     response['Content-Disposition'] = 'attachment; filename=%s.kmz' % strmmsi
 526     return response
 527
 528 @http_authenticate(auth, 'ais')
 529 def vessel_history(request, strmmsi):
 530     """
 531     TODO
 532     That view is called from Google Earth, so that it must support GET method.
 533     """
 534     initial = {}
 535     if request.method == 'POST':
 536         form = HistoryForm(request.POST, initial=initial)
 537         if form.is_valid():
 538             command, extension = form.get_cmdext()
 539
 540             command += u' ' + strmmsi
 541
 542             job = Job()
 543             job.queue_time = datetime.utcnow()
 544             job.friendly_filename = u'%s.%s' % (strmmsi, extension)
 545             job.user = request.user
 546             job.command = command
 547             job.save()
 548             if not jobrunner.wakeup_daemon():
 549                 return HttpResponseServerError(jobrunner.DAEMON_WAKEUP_ERROR)
 550             return HttpResponseRedirect('/job/%s/download' % job.id)
 551     else: # GET
 552         form = HistoryForm(initial=initial)
 553     strmmsi = strmmsi.encode('utf-8')
 554     nmea = Nmea.new_from_lastinfo(strmmsi)
 555     return render_to_response('vessel_history.html', {'nmea': nmea, 'form':form}, RequestContext(request))
 556
 557
 558 @http_authenticate(auth, 'ais')
 559 def fleets(request):
 560     fleetusers = request.user.fleetuser_set.order_by('fleet')
 561     return render_to_response('fleets.html', {'fleetusers':fleetusers}, RequestContext(request))
 562
 563
 564 @http_authenticate(auth, 'ais')
 565 def fleet(request, fleetname):
 566     fleet = get_object_or_404(Fleet, name=fleetname)
 567     if not FleetUser.objects.filter(fleet=fleet.id, user=request.user.id).all():
 568         return HttpResponseForbidden('<h1>Forbidden</h1>')
 569     return render_to_response('fleet.html', {'fleet':fleet}, RequestContext(request))
 570
 571
 572 class FleetEditForm(forms.Form):
 573     name = forms.CharField(max_length=50)
 574     description = forms.CharField(widget=forms.Textarea)
 575
 576     def clean_name(self):
 577         name = self.cleaned_data['name']
 578         if name == u'add':
 579             raise forms.ValidationError("Sorry that name is reserved. Try another one.")
 580         if name != self.initial.get('name', None):
 581             if Fleet.objects.filter(name=name).count():
 582                 raise forms.ValidationError("Sorry that fleet name is already in use. Try another one.")
 583         return remove_decoration(name).replace(u' ', u'_')
 584
 585
 586 @http_authenticate(auth, 'ais')
 587 def fleet_edit(request, fleetname):
 588     initial = {}
 589     if fleetname is not None:
 590         fleet = get_object_or_404(Fleet, name=fleetname)
 591         if not FleetUser.objects.filter(fleet=fleet.id, user=request.user.id).all():
 592             return HttpResponseForbidden('<h1>Forbidden</h1>')
 593
 594         initial['name'] = fleet.name
 595         initial['description'] = fleet.description
 596     else:
 597         fleet = Fleet()
 598
 599     if request.method == 'POST':
 600         form = FleetEditForm(request.POST, initial=initial)
 601         if form.is_valid():
 602             fleet.name = form.cleaned_data['name']
 603             fleet.description = form.cleaned_data['description']
 604             fleet.save()
 605             if not fleetname: # new one
 606                 fu = FleetUser()
 607                 fu.fleet = fleet
 608                 fu.user = request.user
 609                 fu.save()
 610             request.user.info('Fleet updated')
 611             return HttpResponseRedirect('/fleet/%s/' % fleet.name)
 612     else: # GET
 613         form = FleetEditForm(initial=initial)
 614     return render_to_response('fleet_edit.html', {'fleet':fleet, 'form':form}, RequestContext(request))
 615
 616
 617 @http_authenticate(auth, 'ais')
 618 def fleet_vessels(request, fleetname):
 619     fleet = get_object_or_404(Fleet, name=fleetname)
 620     if not FleetUser.objects.filter(fleet=fleet, user=request.user.id).all():
 621         return HttpResponseForbidden('<h1>Forbidden</h1>')
 622     vessels = fleet.vessel.all()
 623     return render_to_response('fleet_vessels.html', {'fleet':fleet, 'vessels': vessels}, RequestContext(request))
 624
 625
 626 @http_authenticate(auth, 'ais')
 627 def fleet_vessel_add(request, fleetname):
 628     fleet = get_object_or_404(Fleet, name=fleetname)
 629     if not FleetUser.objects.filter(fleet=fleet.id, user=request.user.id).all():
 630         return HttpResponseForbidden('<h1>Forbidden</h1>')
 631     strmmsi = request.REQUEST['mmsi']
 632     mmsi = strmmsi_to_mmsi(strmmsi)
 633     try:
 634         vessel = Vessel.objects.get(pk=mmsi)
 635     except Vessel.DoesNotExist:
 636         request.user.error('No such vessel')
 637     else:
 638         try:
 639             fv = FleetVessel.objects.get(fleet=fleet, vessel=vessel)
 640         except FleetVessel.DoesNotExist:
 641             FleetVessel(fleet=fleet, vessel=vessel).save()
 642             request.user.info(u'Vessel %s added to fleet %s.' % (vessel.name, fleetname))
 643         else:
 644             request.user.error('Vessel with MMSI %s is already in that fleet' % strmmsi)
 645     return HttpResponseRedirect('/fleet/%s/list' % fleetname)
 646
 647
 648 class FleetAddVessel(forms.Form):
 649     mmsi = forms.CharField(help_text=u'Enter one MMSI per line', required=False, widget=forms.Textarea)
 650     #name = forms.CharField(max_length=20, required=False)
 651     #imo = forms.IntegerField(required=False)
 652     #callsign = forms.CharField(max_length=7, required=False)
 653     #destination = forms.CharField(max_length=20, required=False)
 654     def clean(self):
 655         cleaned_data = self.cleaned_data
 656         for value in cleaned_data.values():
 657             if value:
 658                 return cleaned_data
 659         raise forms.ValidationError("You must enter at least one criteria")
 660
 661 @http_authenticate(auth, 'ais')
 662 def fleet_vessel_add2(request, fleetname):
 663     fleet = get_object_or_404(Fleet, name=fleetname)
 664     if not FleetUser.objects.filter(fleet=fleet.id, user=request.user.id).all():
 665         return HttpResponseForbidden('<h1>Forbidden</h1>')
 666     if request.method == 'POST' or request.META['QUERY_STRING']:
 667         form = FleetAddVessel(request.REQUEST)
 668         if form.is_valid():
 669             data = form.cleaned_data
 670             result = []
 671             a_strmmsi = request.REQUEST['mmsi']
 672             if a_strmmsi:
 673                 for strmmsi in a_strmmsi.split('\n'):
 674                     strmmsi = strmmsi.strip('\r')
 675                     if not strmmsi:
 676                         continue
 677                     try:
 678                         sqlmmsi = strmmsi_to_mmsi(strmmsi)
 679                     except AssertionError:
 680                         result.append('Invalid mmsi %s' % strmmsi)
 681                         continue
 682                     try:
 683                         vessel = Vessel.objects.get(pk=sqlmmsi)
 684                     except Vessel.DoesNotExist:
 685                         result.append('No vessel with MMSI '+strmmsi)
 686                         continue
 687                     try:
 688                         fv = FleetVessel.objects.get(fleet=fleet, vessel=vessel)
 689                         result.append('Vessel with MMSI %s is already in that fleet' % strmmsi)
 690                     except FleetVessel.DoesNotExist:
 691                         FleetVessel(fleet=fleet, vessel=vessel).save()
 692                         result.append('Vessel with MMSI %s added' % strmmsi)
 693
 694             return HttpResponse('<br>'.join(result))
 695     else: # GET
 696         form = FleetAddVessel()
 697
 698     return render_to_response('fleet_vessel_add.html', {'form': form, 'fleet': fleet}, RequestContext(request))
 699
 700
 701 @http_authenticate(auth, 'ais')
 702 def fleet_users(request, fleetname):
 703     fleet = get_object_or_404(Fleet, name=fleetname)
 704     if not FleetUser.objects.filter(fleet=fleet.id, user=request.user.id).all():
 705         return HttpResponseForbidden('<h1>Forbidden</h1>')
 706
 707     if request.method == 'POST' or request.META['QUERY_STRING']:
 708         action = request.REQUEST['action']
 709         userlogin = request.REQUEST['user']
 710         try:
 711             user = User.objects.get(login=userlogin)
 712         except User.DoesNotExist:
 713             request.user.error(u'User %s does not exist.' % userlogin)
 714         else:
 715             if action == u'add':
 716                 try:
 717                     fu = FleetUser.objects.get(fleet=fleet, user=user)
 718                     request.user.error(u'User %s already has access.' % user.login)
 719                 except FleetUser.DoesNotExist:
 720                     FleetUser(fleet=fleet, user=user).save()
 721                     #TODO log
 722                     request.user.info(u'Granted access to user %s.' % user.login)
 723             elif action == u'revoke':
 724                 try:
 725                     fu = FleetUser.objects.get(fleet=fleet, user=user)
 726                     fu.delete()
 727                     #TODO log
 728                     request.user.info(u'Revoked access to user %s.' % user.login)
 729                     if FleetUser.objects.filter(fleet=fleet).count() == 0:
 730                         fleet.delete()
 731                         request.user.info(u"Deleted fleet %s (no more users)." % fleet.name)
 732                         return HttpResponseRedirect('/fleet/')
 733                 except FleetUser.DoesNotExist:
 734                     request.user.error(u'User %s didn\'t have access.' % user.login)
 735             else:
 736                 request.user.error(u'Unknown action %s' % action)
 737
 738     fleetusers = fleet.fleetuser_set.all()
 739     otherusers = User.objects.exclude(id__in=[fu.user.id for fu in fleetusers]).order_by('name')
 740     return render_to_response('fleet_users.html', {'fleet':fleet, 'fleetusers': fleetusers, 'otherusers': otherusers}, RequestContext(request))
 741
 742
 743 @http_authenticate(auth, 'ais')
 744 def fleet_lastpos(request, fleetname):
 745     fleet = get_object_or_404(Fleet, name=fleetname)
 746     if not FleetUser.objects.filter(fleet=fleet.id, user=request.user.id).all():
 747         return HttpResponseForbidden('<h1>Forbidden</h1>')
 748     fleet_uset = load_fleet_to_uset(fleet.id)
 749     value = kml_to_kmz(format_fleet(fleet_uset, document_name=fleetname+' fleet').encode('utf-8'))
 750     response = HttpResponse(value, mimetype="application/vnd.google-earth.kmz")
 751     response['Content-Disposition'] = 'attachment; filename=%s.kmz' % fleetname
 752     return response
 753
 754 @http_authenticate(auth, 'ais')
 755 def fleet_history(request, fleetname):
 756     fleet = get_object_or_404(Fleet, name=fleetname)
 757     if not FleetUser.objects.filter(fleet=fleet.id, user=request.user.id).all():
 758         return HttpResponseForbidden('<h1>Forbidden</h1>')
 759     initial = {}
 760     if request.method == 'POST':
 761         form = HistoryForm(request.POST, initial=initial)
 762         if form.is_valid():
 763             command, extension = form.get_cmdext()
 764
 765             command += u' @' + fleetname
 766
 767             job = Job()
 768             job.queue_time = datetime.utcnow()
 769             job.friendly_filename = u'%s.%s' % (fleetname, extension)
 770             job.user = request.user
 771             job.command = command
 772             job.save()
 773             if not jobrunner.wakeup_daemon():
 774                 return HttpResponseServerError(jobrunner.DAEMON_WAKEUP_ERROR)
 775             return HttpResponseRedirect('/job/%s/download' % job.id)
 776     else: # GET
 777         form = HistoryForm(initial=initial)
 778     return render_to_response('fleet_history.html', {'fleet': fleet, 'form':form}, RequestContext(request))
 779
 780
 781 @http_authenticate(auth, 'ais')
 782 def jobs_index(request):
 783     show_archive = request.REQUEST.has_key('archive')
 784     if show_archive:
 785         jobs = request.user.job_set.all()
 786     else:
 787         jobs = request.user.job_set.filter(archive_time__isnull=True)
 788
 789     response = render_to_response('jobs.html', {'jobs': jobs, 'queue_size': Job.queue_size(), 'archive': show_archive }, RequestContext(request))
 790     response['Refresh'] = 15
 791     return response
 792
 793 @http_authenticate(auth, 'ais')
 794 def job_detail(request, jobid):
 795     job = get_object_or_404(Job, id=jobid)
 796     if job.user != request.user:
 797         return HttpResponseForbidden('403 Forbidden')
 798     response = render_to_response('job.html', {'job': job, 'queue_size': Job.queue_size()}, RequestContext(request))
 799     if not job.finish_time:
 800         response['Refresh'] = 5
 801     elif not job.archive_time:
 802         # finished but not archived:
 803         response['Refresh'] = '0;url=https://' + request.get_host() + '/job/%s/download' % job.id
 804         # careful not to modify other unschronized columns
 805         Job.objects.filter(id=jobid).update(archive_time = datetime.utcnow())
 806     return response
 807
 808 @http_authenticate(auth, 'ais')
 809 def job_get(request, jobid):
 810     job = get_object_or_404(Job, id=jobid)
 811     if job.user != request.user:
 812         return HttpResponseForbidden('403 Forbidden')
 813     total_wait = 0
 814     while not job.finish_time:
 815         sleep(1)
 816         total_wait += 1
 817         if total_wait > 15:
 818             request.user.info('Your query is slow. Please be patient.')
 819             # TODO: Do not overwrite job.finishtime / result
 820             if not job.notify:
 821                 # careful not to modify other unschronized columns
 822                 Job.objects.filter(id=jobid).update(notify = 'W') # Web
 823             return HttpResponseRedirect('/job/%s/' % job.id)
 824         job = get_object_or_404(Job, id=jobid)
 825
 826     if not job.archive_time:
 827         # careful not to modify other unschronized columns
 828         Job.objects.filter(id=jobid).update(archive_time = datetime.utcnow())
 829
 830     if job.result:
 831         # Error occured
 832          return HttpResponseRedirect('/job/%s/' % job.id)
 833     extension = os.path.splitext(job.friendly_filename)[-1]
 834     return HttpResponseRedirect('/job_result/%s%s/%s' % (job.id, extension, job.friendly_filename))
 835
 836 @http_authenticate(auth, 'ais')
 837 def users(request):
 838     users = User.objects.order_by('name')
 839     for user in users:
 840         user.admin_ok = user.is_admin_by(request.user.id)
 841     if request.REQUEST.has_key('showtree'):
 842         local_users = {}
 843         for user in users:
 844             user.children = []
 845             local_users[user.id] = user
 846         for user in users:
 847             if user.father_id == None:
 848                 root = user
 849             else:
 850                 local_users[user.father_id].children.append(user)
 851         assert root
 852         return render_to_response('users_tree.html', {'root': root, 'auser': request.user.id}, RequestContext(request))
 853     else:
 854         return render_to_response('users.html', {'users':users}, RequestContext(request))
 855
 856 phone_re = re.compile('^\\+.+')
 857
 858 class UserEditForm(forms.Form):
 859     login = forms.RegexField(regex=r'^[a-zA-Z0-9_]+$', max_length=16,
 860         error_message ='Login must only contain letters, numbers and underscores')
 861     name = forms.CharField(max_length=50)
 862     email = forms.EmailField()
 863     phone = forms.RegexField(regex='\\+.+', max_length=20, required=False,
 864         error_message ='Phones must start with a \'+\'')
 865     def __init__(self, *args, **kargs):
 866         forms.Form.__init__(self, *args, **kargs)
 867         self.old_login = kargs['initial']['login']
 868     def clean_login(self):
 869         new_login = self.cleaned_data['login']
 870         if new_login != self.old_login:
 871             if User.objects.filter(login=new_login).count():
 872                 raise forms.ValidationError("Sorry that login is already in use. Try another one.")
 873             if new_login == u'add':
 874                 raise forms.ValidationError("Sorry that login is reserved. Try another one.")
 875         return new_login
 876
 877 @http_authenticate(auth, 'ais')
 878 def user_detail(request, login):
 879     user = get_object_or_404(User, login=login)
 880     user.admin_ok = user.is_admin_by(request.user.id)
 881     return render_to_response('user_detail.html', {'auser': user}, RequestContext(request))
 882
 883 @http_authenticate(auth, 'ais')
 884 def user_edit(request, login):
 885     initial = {}
 886     if login:
 887         user = get_object_or_404(User, login=login)
 888         if not user.is_admin_by(request.user.id):
 889             return HttpResponseForbidden('403 Forbidden')
 890     else:
 891         user = User()
 892         user.father_id = request.user.id;
 893     initial['login'] = user.login
 894     initial['name'] = user.name
 895     initial['email'] = user.email
 896     initial['phone'] = user.phone
 897     if request.method == 'POST':
 898         form = UserEditForm(request.POST, initial=initial)
 899         if form.is_valid():
 900             user.login = form.cleaned_data['login']
 901             user.name = form.cleaned_data['name']
 902             user.email = form.cleaned_data['email']
 903             user.phone = form.cleaned_data['phone']
 904             user.save()
 905             user.check_sandbox_access(request.user)
 906             return HttpResponseRedirect('/user/')
 907     else: # GET
 908         form = UserEditForm(initial=initial)
 909
 910     return render_to_response('user_edit.html', {'form':form, 'auser': user}, RequestContext(request))
 911
 912
 913 class ChangePasswordForm(forms.Form):
 914     new_password = forms.CharField(max_length=16, widget=forms.PasswordInput())
 915     new_password_check = forms.CharField(max_length=16, widget=forms.PasswordInput())
 916
 917     def clean_generic_password(self, field_name):
 918         password = self.cleaned_data[field_name]
 919         try:
 920             crack.FascistCheck(password)
 921         except ValueError, err:
 922             raise forms.ValidationError(err.message)
 923         return password
 924
 925     def clean_new_password(self):
 926         return self.clean_generic_password('new_password')
 927
 928     def clean_new_password_check(self):
 929         return self.clean_generic_password('new_password_check')
 930
 931     def clean(self):
 932         cleaned_data = self.cleaned_data
 933         pass1 = cleaned_data.get('new_password')
 934         pass2 = cleaned_data.get('new_password_check')
 935         if pass1 != pass2 and pass2:
 936             self._errors['new_password_check'] = forms.util.ErrorList(['Passwords must match'])
 937             del cleaned_data['new_password_check'] # FIXME
 938         return cleaned_data
 939
 940
 941 @http_authenticate(auth, 'ais')
 942 def user_change_password(request, login):
 943     user = get_object_or_404(User, login=login)
 944     if not user.is_admin_by(request.user.id):
 945         return HttpResponseForbidden('403 Forbidden')
 946     if request.method == 'POST':
 947         form = ChangePasswordForm(request.POST)
 948         if form.is_valid():
 949             user.set_password(form.cleaned_data['new_password'])
 950             user.save()
 951             return HttpResponseRedirect('/user/')
 952     else: # GET
 953         form = ChangePasswordForm()
 954     return render_to_response('user_change_password.html', {'form':form, 'auser':user}, RequestContext(request))
 955
 956
 957 @http_authenticate(auth, 'ais')
 958 def user_delete(request, login):
 959     user = get_object_or_404(User, login=login)
 960     if not user.is_admin_by(request.user.id):
 961         return HttpResponseForbidden('403 Forbidden')
 962     if request.REQUEST.get('confirm', None):
 963         user.delete()
 964         return HttpResponseRedirect('/user/')
 965     return render_to_response('user_delete.html', {'form':None, 'auser':user}, RequestContext(request))
 966
 967
 968 def logout(request):
 969     # TODO
 970     return HttpResponse('Not implemented')
 971     #response = render_to_response('logout.html', {}, RequestContext(request))
 972     #return response
 973
 974 periods = ({
 975     'name_tiny': '2h',
 976     'name_long': '2 hours',
 977     'seconds': 2*60*60
 978     }, {
 979     'name_tiny': '6h',
 980     'name_long': '6 hours',
 981     'seconds': 6*60*60,
 982     'default': True,
 983     }, {
 984     'name_tiny': '2d',
 985     'name_long': '2 days',
 986     'seconds': 2*24*60*60
 987     }, {
 988     'name_tiny': '14d',
 989     'name_long': '2 weeks',
 990     'seconds': 14*24*60*60
 991     }, {
 992     'name_tiny': '90d',
 993     'name_long': '3 monthes',
 994     'seconds': 90*24*60*60
 995     }, {
 996     'name_tiny': '180d',
 997     'name_long': '6 monthes',
 998     'seconds': 180*24*60*60
 999     })
1000
1001 class StatsSelectorForm(forms.Form):
1002     peers = forms.ChoiceField(choices=[('', 'All')] + [(id4,source['name']) for id4,source in peers_get_config().iteritems()])
1003     types = forms.ChoiceField(choices=[('', 'All'), ('bytes', 'Bandwidth'), ('counts', "Packet'izer")], initial='counts')
1004     periods = forms.ChoiceField(choices=[(period['name_tiny'], period['name_long']) for period in periods] + [('', 'All')], initial='2d')
1005
1006 @http_authenticate(auth, 'ais')
1007 def sources_index(request):
1008     ACTIVE_MINUTES = 5
1009     peers_config = peers_get_config()
1010     peers_display = []
1011     for id4, peer in peers_config.iteritems():
1012         peer['id4'] = id4
1013         peer['id2'] = id4[2:]
1014         peer['active'] = is_id4_active(id4, 60*ACTIVE_MINUTES)
1015         peers_display.append(peer)
1016
1017     peers_display = sorted(peers_display, key=lambda k: k['id4'])
1018
1019     form = StatsSelectorForm()
1020
1021     response = render_to_response('sources_index.html', {'sources':peers_display, 'active_minutes': ACTIVE_MINUTES, 'form': form}, RequestContext(request))
1022     response['Refresh'] = 60*ACTIVE_MINUTES
1023     return response
1024
1025
1026 @http_authenticate(auth, 'ais')
1027 def sources_stats(request):
1028     filter_peers = request.REQUEST.get('peers', None)
1029     if filter_peers:
1030         filter_peers = filter_peers.split(u',')
1031
1032     peers_config = peers_get_config()
1033     peers_display = []
1034
1035     for id4, peer in peers_config.iteritems():
1036         if filter_peers:
1037             if unicode(id4) not in filter_peers:
1038                 continue
1039         peer['id4'] = id4
1040         peers_display.append(peer)
1041
1042     peers_display = sorted(peers_display, key=lambda k: k['id4'])
1043
1044     filter_types = request.REQUEST.get('types', None)
1045     if filter_types:
1046         filter_types = filter_types.split(u',')
1047     else:
1048         filter_types = [ 'bytes', 'counts' ]
1049     logging.error('filter_types=%s', filter_types)
1050
1051     filter_periods = request.REQUEST.get('periods', None)
1052     if filter_periods:
1053         display_periods = []
1054         for period_name in filter_periods.split(u','):
1055             for period in periods:
1056                 if period['name_tiny'] == period_name:
1057                     display_periods.append(period)
1058     else:
1059         display_periods = periods
1060     #logging.error('display_periods=%s', display_periods)
1061
1062
1063     now = int(get_timestamp())
1064     for config in peers_display:
1065         id4 = config['id4']
1066         for period in periods:
1067             args = os.path.join(STATS_DIR, id4+'-'+period['name_tiny']+'-bytes.png'), \
1068                 '--lazy', \
1069                 '-l', '0', \
1070                 '--title', config['name'] + ' - Bandwidth usage - ' + period['name_long'], \
1071                 '--start', '%d' % (now - period['seconds']), \
1072                 '--end', '%d' % now, \
1073                 '--vertical-label', 'bps', \
1074                 'DEF:bytes=%s:bytes:AVERAGE' % os.path.join(STATS_DIR, id4+'.rrd'), \
1075                 'DEF:rawbytes=%s:rawbytes:AVERAGE' % os.path.join(STATS_DIR, id4+'.rrd'), \
1076                 'CDEF:bits=bytes,8,*', \
1077                 'CDEF:rawbits=rawbytes,8,*', \
1078                 'LINE:bits#00FF00:IP payload', \
1079                 'LINE:rawbits#FF0000:IP with headers'
1080             rrdtool.graph(*args)
1081             args = os.path.join(STATS_DIR, id4+'-'+period['name_tiny']+'-counts.png'), \
1082                 '--lazy', \
1083                 '-l', '0', \
1084                 '--title', config['name'] + ' - Packet\'izer stats - ' + period['name_long'], \
1085                 '--start', '%d' % (now-period['seconds']), \
1086                 '--end', '%d' % now, \
1087                 '--vertical-label', 'Hz', \
1088                 'DEF:packets=%s:packets:AVERAGE' % os.path.join(STATS_DIR, id4+'.rrd'), \
1089                 'DEF:lines=%s:lines:AVERAGE' % os.path.join(STATS_DIR, id4+'.rrd'), \
1090                 'LINE:packets#FF0000:input packets', \
1091                 'LINE:lines#00FF00:AIVDM lines'
1092             rrdtool.graph(*args)
1093     return render_to_response('sources.html', {'sources':peers_display, 'show_bytes': 'bytes' in filter_types,  'show_counts': 'counts' in filter_types, 'periods': display_periods}, RequestContext(request))
1094
1095
1096 @http_authenticate(auth, 'ais')
1097 def news(request, page):
1098     NEWS_PER_PAGE = 5
1099     if page:
1100         page = int(page)
1101     else:
1102         page = 1
1103     npages = int((News.objects.count() + NEWS_PER_PAGE - 1) // NEWS_PER_PAGE)
1104     news = News.objects.order_by('-created')[(page - 1) * NEWS_PER_PAGE : page * NEWS_PER_PAGE]
1105     return render_to_response('news.html', {'news':news, 'page': page, 'npages': npages}, RequestContext(request))
1106
1107 @http_authenticate(auth, 'ais')
1108 def news_atom(request):
1109     from django.db import connection
1110
1111     news = News.objects.order_by('-created')
1112
1113     cursor = connection.cursor()
1114     cursor.execute("SELECT MAX(updated) FROM news")
1115     row = cursor.fetchone()
1116     last_update = row[0]
1117
1118     return render_to_response('news.atom', {'news':news, 'last_update':last_update}, RequestContext(request), mimetype='application/atom+xml')