planetstack/core/plus/views.py

   1 #views.py
   2 import functools
   3 import math
   4 import os
   5 import sys
   6 from django.views.generic import TemplateView, View
   7 import datetime
   8 from pprint import pprint
   9 import json
  10 from syndicate.models import *
  11 from core.models import *
  12 from hpc.models import ContentProvider
  13 from operator import attrgetter
  14 from django import template
  15 from django.views.decorators.csrf import csrf_exempt
  16 from django.http import HttpResponse, HttpResponseServerError
  17 from django.core import urlresolvers
  18 from django.contrib.gis.geoip import GeoIP
  19 from ipware.ip import get_ip
  20 import traceback
  21 import socket
  22
  23 BLESSED_SITES = ["Stanford", "Washington", "Princeton", "GeorgiaTech", "MaxPlanck"]
  24
  25 if os.path.exists("/home/smbaker/projects/vicci/cdn/bigquery"):
  26     sys.path.append("/home/smbaker/projects/vicci/cdn/bigquery")
  27 else:
  28     sys.path.append("/opt/planetstack/hpc_wizard")
  29 import hpc_wizard
  30 from planetstack_analytics import DoPlanetStackAnalytics, PlanetStackAnalytics, RED_LOAD, BLUE_LOAD
  31
  32 class DashboardWelcomeView(TemplateView):
  33     template_name = 'admin/dashboard/welcome.html'
  34
  35     def get(self, request, *args, **kwargs):
  36         context = self.get_context_data(**kwargs)
  37         userDetails = getUserSliceInfo(request.user)
  38         #context['site'] = userDetails['site']
  39
  40         context['userSliceInfo'] = userDetails['userSliceInfo']
  41         context['cdnData'] = userDetails['cdnData']
  42         context['cdnContentProviders'] = userDetails['cdnContentProviders']
  43         return self.render_to_response(context=context)
  44
  45 class DashboardView(TemplateView):
  46     head_template = r"""{% extends "admin/dashboard/dashboard_base.html" %}
  47        {% load admin_static %}
  48        {% block content %}
  49     """
  50
  51     tail_template = r"{% endblock %}"
  52
  53     def get(self, request, name="hpc_historical", *args, **kwargs):
  54         context = self.get_context_data(**kwargs)
  55
  56         t = template.Template(self.head_template + open("/opt/planetstack/templates/admin/dashboard/%s.html" % name, "r").read() + self.tail_template)
  57
  58         userDetails = getUserSliceInfo(request.user)
  59         #context['site'] = userDetails['site']
  60
  61         context['userSliceInfo'] = userDetails['userSliceInfo']
  62         context['cdnData'] = userDetails['cdnData']
  63         context['cdnContentProviders'] = userDetails['cdnContentProviders']
  64
  65         response_kwargs = {}
  66         response_kwargs.setdefault('content_type', self.content_type)
  67         return self.response_class(\r
  68             request = request,\r
  69             template = t,\r
  70             context = context,\r
  71             **response_kwargs)
  72
  73 def getUserSliceInfo(user, tableFormat = False):
  74         userDetails = {}
  75
  76         userSliceData = getSliceInfo(user)
  77         if (tableFormat):
  78 #            pprint("*******      GET USER SLICE INFO")
  79             userDetails['userSliceInfo'] = userSliceTableFormatter(userSliceData)
  80         else:
  81             userDetails['userSliceInfo'] = userSliceData
  82         userDetails['cdnData'] = getCDNOperatorData(wait=False)
  83         userDetails['cdnContentProviders'] = getCDNContentProviderData()
  84         return userDetails
  85
  86 class TenantCreateSlice(View):
  87     def post(self, request, *args, **kwargs):
  88         sliceName = request.POST.get("sliceName", "0")
  89         serviceClass = request.POST.get("serviceClass", "0")
  90         imageName = request.POST.get("imageName", "0")
  91         actionToDo = request.POST.get("actionToDo", "0")
  92         #network = request.POST.get("network","0")
  93         mountDataSets = request.POST.get("mountDataSets","0")
  94         if (actionToDo == "add"):
  95            serviceClass = ServiceClass.objects.get(name=serviceClass)
  96            site = request.user.site
  97            image = Image.objects.get(name=imageName)
  98            newSlice = Slice(name=sliceName,serviceClass=serviceClass,site=site,imagePreference=image,mountDataSets=mountDataSets)
  99            newSlice.save()
 100         return HttpResponse("Slice created")
 101
 102 class TenantUpdateSlice(View):
 103     def post(self, request, *args, **kwargs):\r
 104         sliceName = request.POST.get("sliceName", "0")\r
 105         serviceClass = request.POST.get("serviceClass", "0")\r
 106         imageName = request.POST.get("imageName", "0")\r
 107         actionToDo = request.POST.get("actionToDo", "0")\r
 108         #network = request.POST.get("network","0")\r
 109         dataSet = request.POST.get("dataSet","0")\r
 110         slice = Slice.objects.all()\r
 111         for entry in slice:\r
 112                 serviceClass = ServiceClass.objects.get(name=serviceClass)\r
 113                 if(entry.name==sliceName):\r
 114                          if (actionToDo == "update"):\r
 115                                 setattr(entry,'serviceClass',serviceClass)\r
 116                                 setattr(entry,'imagePreference',imageName)\r
 117                                 #setattr(entry,'network',network)\r
 118                                 setattr(entry,'mountDataSets',dataSet)\r
 119                                 entry.save()\r
 120                                 break\r
 121         return HttpResponse("Slice updated")\r
 122 \r
 123 def getTenantSliceInfo(user, tableFormat = False):
 124     tenantSliceDetails = {}
 125     tenantSliceData = getTenantInfo(user)
 126     tenantServiceClassData = getServiceClassInfo(user)
 127     if (tableFormat):
 128        tenantSliceDetails['userSliceInfo'] = userSliceTableFormatter(tenantSliceData)
 129        tenantSliceDetails['sliceServiceClass']=userSliceTableFormatter(tenantServiceClassData)
 130     else:
 131        tenantSliceDetails['userSliceInfo'] = tenantSliceData
 132     tenantSliceDetails['sliceServiceClass']=userSliceTableFormatter(tenantServiceClassData)
 133     tenantSliceDetails['image']=userSliceTableFormatter(getImageInfo(user))
 134     #tenantSliceDetails['network']=userSliceTableFormatter(getNetworkInfo(user))
 135     tenantSliceDetails['deploymentSites']=userSliceTableFormatter(getDeploymentSites())
 136     tenantSliceDetails['sites'] = userSliceTableFormatter(getTenantSitesInfo())
 137     tenantSliceDetails['mountDataSets'] = userSliceTableFormatter(getMountDataSets())
 138     tenantSliceDetails['publicKey'] = getPublicKey(user)
 139     return tenantSliceDetails
 140
 141 def getTenantInfo(user):
 142     slices =Slice.objects.all()
 143     userSliceInfo = []
 144     for entry in slices:
 145        sliceName = Slice.objects.get(id=entry.id).name
 146        slice = Slice.objects.get(name=Slice.objects.get(id=entry.id).name)
 147        sliceServiceClass = entry.serviceClass.name
 148        preferredImage =  entry.imagePreference
 149        sliceDataSet = entry.mountDataSets
 150        #sliceNetwork = entry.network
 151        numSliver = 0
 152        sliceImage=""
 153        sliceSite = {}
 154        sliceNode = {}
 155        sliceInstance= {}
 156        for sliver in slice.slivers.all():
 157             if sliver.node.site.name in BLESSED_SITES:
 158                 sliceSite[sliver.node.site.name] = sliceSite.get(sliver.node.site.name,0) + 1
 159                 sliceImage = sliver.image.name
 160                 sliceNode[str(sliver)] = sliver.node.name
 161        numSliver = sum(sliceSite.values())
 162        numSites = len(sliceSite)
 163        userSliceInfo.append({'sliceName': sliceName,'sliceServiceClass': sliceServiceClass,'preferredImage':preferredImage,'numOfSites':numSites, 'sliceSite':sliceSite,'sliceImage':sliceImage,'numOfSlivers':numSliver,'sliceDataSet':sliceDataSet,'instanceNodePair':sliceNode})
 164     return userSliceInfo
 165
 166 def getTenantSitesInfo():
 167         tenantSiteInfo=[]
 168         for entry in Site.objects.all():
 169             if entry.name in BLESSED_SITES:
 170                  tenantSiteInfo.append({'siteName':entry.name})
 171         return tenantSiteInfo
 172
 173 def userSliceTableFormatter(data):
 174 #    pprint(data)
 175     formattedData = {
 176                      'rows' : data
 177                     }
 178     return formattedData
 179
 180 def getPublicKey(user):
 181         users=User.objects.all()\r
 182         for key in users:\r
 183                 if (str(key.email)==str(user)):\r
 184                         sshKey = key.public_key\r
 185         return sshKey
 186
 187 def getServiceClassInfo(user):
 188     serviceClassList = ServiceClass.objects.all()
 189     sliceInfo = []
 190     for entry in serviceClassList:
 191           sliceInfo.append({'serviceClass':entry.name})
 192     return sliceInfo
 193
 194 def getImageInfo(user):
 195     imageList = Image.objects.all()
 196     #imageList = ['Fedora 16 LXC rev 1.3','Hadoop','MPI']
 197     imageInfo = []
 198     for imageEntry in imageList:
 199           imageInfo.append({'Image':imageEntry.name})
 200           #imageInfo.append({'Image':imageEntry})
 201     return imageInfo
 202
 203 def createPrivateVolume(user, sliceName):
 204     caps = Volume.CAP_READ_DATA | Volume.CAP_WRITE_DATA | Volume.CAP_HOST_DATA
 205     getattr(Volume.default_gateway_caps,"read data") | \
 206            getattr(Volume.default_gateway_caps,"write data") | \
 207            getattr(Volume.default_gateway_caps,"host files")
 208     v = Volume(name="private_" + sliceName, owner_id=user, description="private volume for %s" % sliceName, blocksize=61440, private=True, archive=False, default_gateway_caps = caps)
 209     v.save()
 210
 211 SYNDICATE_REPLICATE_PORTNUM = 1025
 212
 213 def get_free_port():
 214     inuse={}
 215     inuse[SYNDICATE_REPLICATE_PORTNUM] = True
 216     for vs in VolumeSlice.objects.all():
 217         inuse[vs.peer_portnum]=True
 218         inuse[vs.replicate_portnum]=True
 219     for network in Network.objects.all():
 220         network_ports = [x.strip() for x in network.ports.split(",")]
 221         for network_port in network_ports:
 222             try:
 223                 inuse[int(network_port)] = True
 224             except:
 225                 # in case someone has put a malformed port number in the list
 226                 pass
 227     for i in range(1025, 65535):
 228         if not inuse.get(i,False):
 229             return i
 230     return False
 231
 232 def mountVolume(sliceName, volumeName, readWrite):
 233     slice = Slice.objects.get(name=sliceName)
 234     volume = Volume.objects.get(name=volumeName)
 235     # choose some unused port numbers
 236     flags = Volume.CAP_READ_DATA
 237     if readWrite:
 238         flags = flags | Volume.CAP_WRITE_DATA
 239     vs = VolumeSlice(volume_id = volume, slice_id = slice, gateway_caps=flags, peer_portnum = get_free_port(), replicate_portnum = SYNDICATE_REPLICATE_PORTNUM)
 240     vs.save()
 241
 242 def hasPrivateVolume(sliceName):
 243      slice = Slice.objects.get(name=sliceName)
 244      for vs in VolumeSlice.objects.filter(slice_id=slice):
 245          if vs.volume_id.private:
 246              return True
 247      return False
 248
 249 def getMountDataSets():
 250         dataSetInfo=[]\r
 251         for volume in Volume.objects.all():\r
 252             if not volume.private:\r
 253                 dataSetInfo.append({'DataSet': volume.name})\r
 254 \r
 255         return dataSetInfo
 256
 257 def getNetworkInfo(user):
 258    #networkList = Network.objects.all()
 259     networkList = ['Private Only','Private and Publicly Routable']
 260     networkInfo = []
 261     for networkEntry in networkList:
 262           #networkInfo.append({'Network':networkEntry.name})
 263           networkInfo.append({'Network':networkEntry})
 264     return networkInfo
 265
 266 def getDeploymentSites():
 267     deploymentList = Deployment.objects.all()
 268     deploymentInfo = []
 269     for entry in deploymentList:
 270         deploymentInfo.append({'DeploymentSite':entry.name})
 271     return deploymentInfo
 272
 273 def getSliceInfo(user):
 274     sliceList = Slice.objects.all()
 275     slicePrivs = SlicePrivilege.objects.filter(user=user)
 276     userSliceInfo = []
 277     for entry in slicePrivs:
 278
 279         slicename = Slice.objects.get(id=entry.slice.id).name
 280         slice = Slice.objects.get(name=Slice.objects.get(id=entry.slice.id).name)
 281         sliverList=Sliver.objects.all()
 282         sites_used = {}
 283         for sliver in slice.slivers.all():
 284              #sites_used['deploymentSites'] = sliver.node.deployment.name
 285              # sites_used[sliver.image.name] = sliver.image.name
 286              sites_used[sliver.node.site.name] = sliver.numberCores
 287         sliceid = Slice.objects.get(id=entry.slice.id).id
 288         try:
 289             sliverList = Sliver.objects.filter(slice=entry.slice.id)
 290             siteList = {}
 291             for x in sliverList:
 292                if x.node.site not in siteList:
 293                   siteList[x.node.site] = 1
 294             slivercount = len(sliverList)
 295             sitecount = len(siteList)
 296         except:
 297             traceback.print_exc()
 298             slivercount = 0
 299             sitecount = 0
 300
 301         userSliceInfo.append({'slicename': slicename, 'sliceid':sliceid,
 302                               'sitesUsed':sites_used,
 303                               'role': SliceRole.objects.get(id=entry.role.id).role,
 304                               'slivercount': slivercount,
 305                               'sitecount':sitecount})
 306
 307     return userSliceInfo
 308
 309 def getCDNContentProviderData():
 310     cps = []
 311     for dm_cp in ContentProvider.objects.all():
 312         cp = {"name": dm_cp.name,
 313               "account": dm_cp.account}
 314         cps.append(cp)
 315
 316     return cps
 317
 318 def getCDNOperatorData(randomizeData = False, wait=True):
 319     HPC_SLICE_NAME = "HyperCache"
 320
 321     bq = PlanetStackAnalytics()
 322
 323     rows = bq.get_cached_query_results(bq.compose_cached_query(), wait)
 324
 325     # wait=False on the first time the Dashboard is opened. This means we might
 326     # not have any rows yet. The dashboard code polls every 30 seconds, so it
 327     # will eventually pick them up.
 328
 329     if rows:
 330         rows = bq.postprocess_results(rows, filter={"event": "hpc_heartbeat"}, maxi=["cpu"], count=["hostname"], computed=["bytes_sent/elapsed"], groupBy=["Time","site"], maxDeltaTime=80)
 331
 332         # dictionaryize the statistics rows by site name
 333         stats_rows = {}
 334         for row in rows:
 335             stats_rows[row["site"]] = row
 336     else:
 337         stats_rows = {}
 338
 339     slice = Slice.objects.filter(name=HPC_SLICE_NAME)
 340     if slice:
 341         slice_slivers = list(slice[0].slivers.all())
 342     else:
 343         slice_slivers = []
 344
 345     new_rows = {}
 346     for site in Site.objects.all():
 347         # compute number of slivers allocated in the data model
 348         allocated_slivers = 0
 349         for sliver in slice_slivers:
 350             if sliver.node.site == site:
 351                 allocated_slivers = allocated_slivers + 1
 352
 353         stats_row = stats_rows.get(site.name,{})
 354
 355         max_cpu = stats_row.get("max_avg_cpu", stats_row.get("max_cpu",0))
 356         cpu=float(max_cpu)/100.0
 357         hotness = max(0.0, ((cpu*RED_LOAD) - BLUE_LOAD)/(RED_LOAD-BLUE_LOAD))
 358
 359         # format it to what that CDN Operations View is expecting
 360         new_row = {"lat": float(site.location.longitude),
 361                "long": float(site.location.longitude),
 362                "lat": float(site.location.latitude),
 363                "health": 0,
 364                "numNodes": int(site.nodes.count()),
 365                "activeHPCSlivers": int(stats_row.get("count_hostname", 0)),     # measured number of slivers, from bigquery statistics
 366                "numHPCSlivers": allocated_slivers,                              # allocated number of slivers, from data model
 367                "siteUrl": str(site.site_url),
 368                "bandwidth": stats_row.get("sum_computed_bytes_sent_div_elapsed",0),
 369                "load": max_cpu,
 370                "hot": float(hotness)}
 371         new_rows[str(site.name)] = new_row
 372
 373     # get rid of sites with 0 slivers that overlap other sites with >0 slivers
 374     for (k,v) in new_rows.items():
 375         bad=False
 376         if v["numHPCSlivers"]==0:
 377             for v2 in new_rows.values():
 378                 if (v!=v2) and (v2["numHPCSlivers"]>=0):
 379                     d = haversine(v["lat"],v["long"],v2["lat"],v2["long"])
 380                     if d<100:
 381                          bad=True
 382             if bad:
 383                 del new_rows[k]
 384
 385     return new_rows
 386
 387 def getPageSummary(request):
 388     slice = request.GET.get('slice', None)
 389     site = request.GET.get('site', None)
 390     node = request.GET.get('node', None)
 391
 392 class SimulatorView(View):
 393     def get(self, request, **kwargs):
 394         sim = json.loads(file("/tmp/simulator.json","r").read())
 395         text = "<html><head></head><body>"
 396         text += "Iteration: %d<br>" % sim["iteration"]
 397         text += "Elapsed since report %d<br><br>" % sim["elapsed_since_report"]
 398         text += "<table border=1>"
 399         text += "<tr><th>site</th><th>trend</th><th>weight</th><th>bytes_sent</th><th>hot</th></tr>"
 400         for site in sim["site_load"].values():
 401             text += "<tr>"
 402             text += "<td>%s</td><td>%0.2f</td><td>%0.2f</td><td>%d</td><td>%0.2f</td>" % \
 403                         (site["name"], site["trend"], site["weight"], site["bytes_sent"], site["load_frac"])
 404             text += "</tr>"
 405         text += "</table>"
 406         text += "</body></html>"
 407         return HttpResponse(text)
 408
 409 class DashboardUserSiteView(View):
 410     def get(self, request, **kwargs):
 411         return HttpResponse(json.dumps(getUserSliceInfo(request.user, True)), mimetype='application/javascript')
 412
 413 class TenantViewData(View):
 414     def get(self, request, **kwargs):
 415         return HttpResponse(json.dumps(getTenantSliceInfo(request.user, True)), mimetype='application/javascript')
 416
 417 def haversine(site_lat, site_lon, lat, lon):
 418     d=0
 419     if lat and lon and site_lat and site_lon:
 420         site_lat = float(site_lat)
 421         site_lon = float(site_lon)
 422         lat = float(lat)
 423         lon = float(lon)
 424         R = 6378.1
 425         a = math.sin( math.radians((lat - site_lat)/2.0) )**2 + math.cos( math.radians(lat) )*math.cos( math.radians(site_lat) )*(math.sin( math.radians((lon - site_lon)/2.0 ) )**2)
 426         c = 2 * math.atan2( math.sqrt(a), math.sqrt(1 - a) )
 427         d = R * c
 428
 429     return d
 430
 431 def siteSortKey(site, slice=None, count=None, lat=None, lon=None):
 432     # try to pick a site we're already using
 433     has_slivers_here=False
 434     if slice:
 435         for sliver in slice.slivers.all():
 436             if sliver.node.site.name == site.name:
 437                 has_slivers_here=True
 438
 439     # Haversine method
 440     d = haversine(site.location.latitude, site.location.longitude, lat, lon)
 441
 442     return (-has_slivers_here, d)
 443
 444 def tenant_pick_sites(user, user_ip=None, slice=None, count=None):
 445     """ Returns list of sites, sorted from most favorable to least favorable """
 446     lat=None
 447     lon=None
 448     try:
 449         client_geo = GeoIP().city(user_ip)
 450         if client_geo:
 451             lat=float(client_geo["latitude"])
 452             lon=float(client_geo["longitude"])
 453     except:
 454         print "exception in geo code"
 455         traceback.print_exc()
 456
 457     sites = Site.objects.all()
 458     sites = [x for x in sites if x.name in BLESSED_SITES]
 459     sites = sorted(sites, key=functools.partial(siteSortKey, slice=slice, count=count, lat=lat, lon=lon))
 460
 461     return sites
 462
 463 def slice_increase_slivers(user, user_ip, siteList, slice, count, noAct=False):
 464     sitesChanged = {}
 465
 466     # let's compute how many slivers are in use in each node of each site
 467     for site in siteList:
 468         site.nodeList = list(site.nodes.all())
 469         for node in site.nodeList:
 470             node.sliverCount = 0
 471             for sliver in node.slivers.all():
 472                  if sliver.slice.id == slice.id:
 473                      node.sliverCount = node.sliverCount + 1
 474
 475     # Allocate slivers to nodes
 476     # for now, assume we want to allocate all slivers from the same site
 477     nodes = siteList[0].nodeList
 478     while (count>0):
 479         # Sort the node list by number of slivers per node, then pick the
 480         # node with the least number of slivers.
 481         nodes = sorted(nodes, key=attrgetter("sliverCount"))
 482         node = nodes[0]
 483
 484         print "adding sliver at node", node.name, "of site", node.site.name
 485
 486         if not noAct:
 487             sliver = Sliver(name=node.name,
 488                         slice=slice,
 489                         node=node,
 490                         image = Image.objects.all()[0],
 491                         creator = User.objects.get(email=user),
 492                         deploymentNetwork=node.deployment,
 493                         numberCores =1 )
 494             sliver.save()
 495
 496         node.sliverCount = node.sliverCount + 1
 497
 498         count = count - 1
 499
 500         sitesChanged[node.site.name] = sitesChanged.get(node.site.name,0) + 1
 501
 502     return sitesChanged
 503
 504 def slice_decrease_slivers(user, siteList, slice, count, noAct=False):
 505     sitesChanged = {}
 506     sliverList ={}
 507     if siteList:
 508         siteNames = [site.name for site in siteList]
 509     else:
 510         siteNames = None
 511
 512     for sliver in slice.slivers.all():
 513         if(not siteNames) or (sliver.node.site.name in siteNames):\r
 514                 node = sliver.node\r
 515                 sliverList[sliver.name]=node.name
 516
 517     for key in sliverList:
 518         if count>0:
 519             sliver = Sliver.objects.filter(name=key)[0]\r
 520             sliver.delete()\r
 521             print "deleting sliver",sliverList[key],"at node",sliver.node.name\r
 522             count=count-1\r
 523             sitesChanged[sliver.node.site.name] = sitesChanged.get(sliver.node.site.name,0) - 1\r
 524 \r
 525     return sitesChanged
 526
 527 class TenantDeleteSliceView(View):
 528         def post(self,request):\r
 529                 sliceName = request.POST.get("sliceName",None)\r
 530                 slice = Slice.objects.get(name=sliceName)\r
 531                 #print slice, slice.id\r
 532                 sliceToDel=Slice(name=sliceName, id=slice.id)\r
 533                 sliceToDel.delete()
 534                 return HttpResponse("Slice deleted")
 535
 536 class TenantAddOrRemoveSliverView(View):
 537     """ Add or remove slivers from a Slice
 538
 539         Arguments:
 540             siteName - name of site. If not specified, PlanetStack will pick the
 541                        best site.,
 542             actionToDo - [add | rem]
 543             count - number of slivers to add or remove
 544             sliceName - name of slice
 545             noAct - if set, no changes will be made to db, but result will still
 546                     show which sites would have been modified.
 547
 548         Returns:
 549             Dictionary of sites that were modified, and the count of nodes
 550             that were added or removed at each site.
 551     """
 552     def post(self, request, *args, **kwargs):
 553         siteName = request.POST.get("siteName", None)
 554         actionToDo = request.POST.get("actionToDo", None)
 555         count = int(request.POST.get("count","0"))
 556         sliceName = request.POST.get("slice", None)
 557         noAct = request.POST.get("noAct", False)
 558
 559         if not sliceName:
 560             return HttpResponseServerError("No slice name given")
 561
 562         slice = Slice.objects.get(name=sliceName)
 563
 564         if siteName:
 565             siteList = [Site.objects.get(name=siteName)]
 566         else:
 567             siteList = None
 568
 569         if (actionToDo == "add"):
 570             user_ip = request.GET.get("ip", get_ip(request))
 571             if (siteList is None):
 572                 siteList = tenant_pick_sites(user, user_ip, slice, count)
 573
 574             sitesChanged = slice_increase_slivers(request.user, user_ip, siteList, slice, count, noAct)
 575         elif (actionToDo == "rem"):
 576             sitesChanged = slice_decrease_slivers(request.user, siteList, slice, count, noAct)
 577         else:
 578             return HttpResponseServerError("Unknown actionToDo %s" % actionToDo)
 579
 580         return HttpResponse(json.dumps(sitesChanged), mimetype='application/javascript')
 581
 582     def get(self, request, *args, **kwargs):
 583         request.POST = request.GET
 584         return self.post(request, *args, **kwargs)  # for testing REST in browser
 585         #return HttpResponseServerError("GET is not supported")
 586
 587 class TenantPickSitesView(View):
 588     """ primarily just for testing purposes """
 589     def get(self, request, *args, **kwargs):
 590         count = request.GET.get("count","0")
 591         slice = request.GET.get("slice",None)
 592         if slice:
 593             slice = Slice.objects.get(name=slice)
 594         ip = request.GET.get("ip", get_ip(request))
 595         sites = tenant_pick_sites(request.user, user_ip=ip, count=0, slice=slice)
 596         sites = [x.name for x in sites]
 597         return HttpResponse(json.dumps(sites), mimetype='application/javascript')
 598
 599 class DashboardSummaryAjaxView(View):
 600     def get(self, request, **kwargs):
 601         def avg(x):
 602             if len(x)==0:
 603                 return 0
 604             return float(sum(x))/len(x)
 605
 606         sites = getCDNOperatorData().values()
 607
 608         sites = [site for site in sites if site["numHPCSlivers"]>0]
 609
 610         total_slivers = sum( [site["numHPCSlivers"] for site in sites] )
 611         total_bandwidth = sum( [site["bandwidth"] for site in sites] )
 612         average_cpu = int(avg( [site["load"] for site in sites] ))
 613
 614         result= {"total_slivers": total_slivers,
 615                 "total_bandwidth": total_bandwidth,
 616                 "average_cpu": average_cpu}
 617
 618         return HttpResponse(json.dumps(result), mimetype='application/javascript')
 619
 620 class DashboardAddOrRemoveSliverView(View):
 621     # TODO: deprecate this view in favor of using TenantAddOrRemoveSliverView
 622
 623     def post(self, request, *args, **kwargs):
 624         siteName = request.POST.get("site", None)
 625         actionToDo = request.POST.get("actionToDo", "0")
 626
 627         siteList = [Site.objects.get(name=siteName)]
 628         slice = Slice.objects.get(name="HyperCache")
 629
 630         if (actionToDo == "add"):
 631             user_ip = request.GET.get("ip", get_ip(request))
 632             slice_increase_slivers(request.user, user_ip, siteList, slice, 1)
 633         elif (actionToDo == "rem"):
 634             slice_decrease_slivers(request.user, siteList, slice, 1)
 635
 636         print '*' * 50
 637         print 'Ask for site: ' + siteName + ' to ' + actionToDo + ' another HPC Sliver'
 638         return HttpResponse('This is POST request ')
 639
 640 class DashboardAjaxView(View):
 641     def get(self, request, **kwargs):
 642         return HttpResponse(json.dumps(getCDNOperatorData(True)), mimetype='application/javascript')
 643
 644 class DashboardAnalyticsAjaxView(View):
 645     def get(self, request, name="hello_world", **kwargs):
 646         if (name == "hpcSummary"):
 647             return HttpResponse(json.dumps(hpc_wizard.get_hpc_wizard().get_summary_for_view()), mimetype='application/javascript')
 648         elif (name == "hpcUserSite"):
 649             return HttpResponse(json.dumps(getUserSliceInfo(request.user, True)), mimetype='application/javascript')
 650         elif (name == "hpcMap"):
 651             return HttpResponse(json.dumps(getCDNOperatorData(True)), mimetype='application/javascript')
 652         elif (name == "bigquery"):
 653             (mimetype, data) = DoPlanetStackAnalytics(request)
 654             return HttpResponse(data, mimetype=mimetype)
 655         else:
 656             return HttpResponse(json.dumps("Unknown"), mimetype='application/javascript')
 657