def sources_json(request):
now = datetime.datetime.now()
dt = now
#######
stats = None
if settings.STATS_SAVE_MEMORY:
cache, stats = get_from_cache(
settings.CACHES['default']['LOCATION'],
settings.CACHES['default'],
'default',
'stats_tilerequests',
GEVENT_MONKEY_PATCH=settings.TILEJET_GEVENT_MONKEY_PATCH)
if settings.STATS_SAVE_FILE and not stats:
stats = get_from_file(settings.STATS_REQUEST_FILE, filetype='json')
sources = []
#for source in TileSource.objects.all().order_by('name'):
for source in getTileSources():
link_geojson = settings.SITEURL+'cache/stats/export/geojson/15/source/'+source['name']+'.geojson'
link_proxy_internal = settings.SITEURL+'proxy/?url='+(source['url']).replace("{ext}","png")
link_proxy_external = ""
if source['type'] in [TYPE_TMS, TYPE_TMS_FLIPPED]:
link_proxy_external = settings.SITEURL+'cache/proxy/tms/origin/'+source['origin']+'/source/'+source['name']+'/{z}/{x}/{y}.png'
elif source['type'] == TYPE_BING:
link_proxy_external = settings.SITEURL+'cache/proxy/bing/origin/'+source['origin']+'/source/'+source['name']+'{u}.png'
if stats:
sources.append({
'name': source['name'],
'type': source['type_title'],
'origin': source['origin'],
'url': source['url'],
'requests_all': getValue(stats['by_source'], source['name'],0),
'requests_year': getValue(getValue(stats['by_year_source'],dt.strftime('%Y')),source['name'], 0),
'requests_month': getValue(getValue(stats['by_month_source'],dt.strftime('%Y-%m')),source['name'], 0),
'requests_today': getValue(getValue(stats['by_date_source'],dt.strftime('%Y-%m-%d')),source['name'], 0),
'link_proxy': link_proxy_internal,
'link_id': 'http://www.openstreetmap.org/edit#?background=custom:'+link_proxy_external,
'link_geojson': link_geojson,
'link_geojsonio': 'http://geojson.io/#data=data:text/x-url,'+link_geojson
})
else:
sources.append({
'name': source['name'],
'type': source['type_title'],
'origin': source['origin'],
'url': source['url'],
'requests_all': -1,
'requests_year': -1,
'requests_month': -1,
'requests_today': -1,
'link_proxy': link_proxy_internal,
'link_id': 'http://www.openstreetmap.org/edit#?background=custom:'+link_proxy_external,
'link_geojson': link_geojson,
'link_geojsonio': 'http://geojson.io/#data=data:text/x-url,'+link_geojson
})
return HttpResponse(json.dumps(sources),
content_type="application/json"
)
def stats_geojson(request, z=None, origin=None, source=None, date=None):
iz = int(z)
features = []
stats = stats_tilerequest()
root = None
if origin and date:
root = getValue(getValue(stats['by_origin_date_location'],origin),date)
elif source and date:
root = getValue(getValue(stats['by_source_date_location'],source),date)
elif origin:
root = stats['by_origin_location'][origin]
elif source:
root = stats['by_source_location'][source]
elif date:
root = stats['by_date_location'][date]
else:
root = stats['by_location']
i = 0
for key in root:
i = i + 1
t = key.split("/")
tz = int(t[0])
tx = int(t[1])
ty = int(t[2])
if iz == tz:
#count = stats['global'][stat][key]
count = root[key]
geom = tms_to_geojson(tx,ty,tz)
props = {"x":tx, "y":ty, "z":tz, "location": key, "count": count}
features.append( Feature(geometry=geom, id=i, properties=props) )
geojson = FeatureCollection( features )
return HttpResponse(json.dumps(geojson),
content_type="application/json"
)
def origins_json(request):
now = datetime.datetime.now()
dt = now
#######
#stats = stats_tilerequest()
cache, stats = get_from_cache(
settings.CACHES['default']['LOCATION'],
settings.CACHES['default'],
'default',
'stats_tilerequests',
GEVENT_MONKEY_PATCH=settings.TILEJET_GEVENT_MONKEY_PATCH)
origins = []
for origin in TileOrigin.objects.all().order_by('name','type'):
link_geojson = settings.SITEURL+'cache/stats/export/geojson/15/origin/'+origin.name+'.geojson'
if stats:
origins.append({
'name': origin.name,
'description': origin.description,
'type': origin.type_title(),
'multiple': origin.multiple,
'auto': origin.auto,
'url': origin.url,
'requests_all': getValue(stats['by_origin'], origin.name,0),
'requests_year': getValue(getValue(stats['by_year_origin'],dt.strftime('%Y')),origin.name, 0),
'requests_month': getValue(getValue(stats['by_month_origin'],dt.strftime('%Y-%m')),origin.name, 0),
'requests_today': getValue(getValue(stats['by_date_origin'],dt.strftime('%Y-%m-%d')),origin.name, 0),
'link_geojson': link_geojson,
'link_geojsonio': 'http://geojson.io/#data=data:text/x-url,'+link_geojson
})
else:
origins.append({
'name': origin.name,
'description': origin.description,
'type': origin.type_title(),
'multiple': origin.multiple,
'auto': origin.auto,
'url': origin.url,
'requests_all': 0,
'requests_year': 0,
'requests_month': 0,
'requests_today': 0,
'link_geojson': link_geojson,
'link_geojsonio': 'http://geojson.io/#data=data:text/x-url,'+link_geojson
})
return HttpResponse(json.dumps(origins),
content_type="application/json"
)
def requestTileFromSource(tilesource=None, x=None, y=None, z=None, u=None, ext=None, verbose=False):
print "requestTileFromSource"
if tilesource["type"] == TYPE_BING:
if tilesource["auth"]:
url = tilesource["url"].format(u=u, ext=ext, auth=ts["auth"])
else:
url = tilesource["url"].format(u=u, ext=ext)
else:
if tilesource["auth"]:
url = tilesource["url"].format(x=x, y=y, z=z, ext=ext, auth=ts["auth"])
else:
url = tilesource["url"].format(x=x, y=y, z=z, ext=ext)
contentType = "image/png"
# contentType = "text/html"
if verbose:
print "Requesting tile from " + url
print "URL: " + url
params = None
# params = {'access_token': 'pk.eyJ1IjoiaGl1IiwiYSI6IlhLWFA4Z28ifQ.4gQiuOS-lzhigU5PgMHUzw'}
request = make_request(url=url, params=params, auth=None, data=None, contentType=contentType)
if request.getcode() != 200:
raise Exception(
"Could not fetch tile from source with url {url}: Status Code {status}".format(
url=url, status=request.getcode()
)
)
# image = binascii.hexlify(request.read())
# image = io.BytesIO(request.read()))
image = request.read()
info = request.info()
headers = {"Expires": getValue(info, "Expires", fallback="")}
tile = {"headers": headers, "data": image}
return tile
def taskUpdateStats():
GEVENT_MONKEY_PATCH = settings.TILEJET_GEVENT_MONKEY_PATCH
#=======#
now = datetime.datetime.now()
stats = {}
if GEVENT_MONKEY_PATCH:
# Import Gevent and monkey patch
from gevent import monkey
monkey.patch_all()
# Update MongoDB
from pymongo import MongoClient
client = None
db = None
try:
#client = MongoClient('localhost', 27017)
#client = MongoClient('/tmp/mongodb-27017.sock')
client = MongoClient(settings.TILEJET_DBHOST, settings.TILEJET_DBPORT)
db = client[settings.TILEJET_DBNAME]
except:
client = None
db = None
errorline = "Error: Could not connet to stats database from scheduled taskUpdateStats. Most likely issue with connection pool"
error_file = settings.LOG_ERRORS_ROOT+os.sep+"requests_tiles_"+now.strftime('%Y-%m-%d')+"_errors.txt"
with open(error_file,'a') as f:
f.write(errorline+"\n")
if client and db:
stats_total = db.stats_total
stats = {
'total': {
'count': getStat(stats_total, 'total.count', 0)
}
}
#print stats
for desc in settings.TILEJET_LIST_STATS:
name = desc['name']
attrs = desc['attributes']
window = getValue(desc,'window')
#minvalue = None
query = None
if window:
td = window['delta']
mintime = now - datetime.timedelta(**td)
minvalue = mintime.strftime(LOG_FIELD_FORMATS[window['attribute']])
query = {window['attribute']: {"$gte": minvalue}}
print "Query:"
print query
print desc
if len(attrs) == 0:
for doc in getStats(db[desc['collection']],[],query=query):
stats[name] = doc['value']
elif len(attrs) > 0:
stats[name] = {}
docs = getStats(db[desc['collection']],[],query=query)
for doc in docs:
v = doc['value']
obj = stats[name]
for i in range(len(attrs)-1):
a = attrs[i]
try:
obj = obj[doc[a]]
except KeyError, e:
obj[doc[a]] = {}
obj = obj[doc[a]]
obj[doc[attrs[len(attrs)-1]]] = v
print stats
if settings.STATS_SAVE_FILE:
print "Saving to file"
import json
commit_to_file(settings.STATS_REQUEST_FILE, json.dumps(stats), binary=False)
if settings.STATS_SAVE_MEMORY:
print "Saving to memory"
commit_to_cache('default', 'stats_tilerequests', stats, GEVENT_MONKEY_PATCH=GEVENT_MONKEY_PATCH)
def _requestTile(request, tileservice=None, tilesource=None, tileorigin=None, z=None, x=None, y=None, u=None, ext=None):
print "_requestTile"
now = datetime.datetime.now()
ip = getIPAddress(request)
#==#
if not tileorigin:
tileorigin = tilesource['origin']
#==#
verbose = True
ix = None
iy = None
iyf = None
iz = None
indirectTiles = None
nearbyTiles = None
parentTiles = None
childrenTiles = None
gw_client, gw_logs, gw_requests = None, None, None
if settings.GEOWATCH_ENABLED:
gw_client, gw_logs, gw_requests = provision_client_logs_requests()
if u:
iz, ix, iy = quadkey_to_tms(u)
elif x and y and z:
ix = int(x)
iy = int(y)
iz = int(z)
if tilesource['type'] == TYPE_BING:
u = tms_to_quadkey(ix, iy, iz)
iy, iyf = getYValues(tileservice,tilesource,ix,iy,iz)
tile_bbox = tms_to_bbox(ix,iy,iz)
if tilesource['cacheable']:
indirectTiles = []
if settings.TILEJET['heuristic']['nearby']['enabled']:
ir = settings.TILEJET['heuristic']['nearby']['radius']
nearbyTiles = getNearbyTiles(ix, iy, iz, ir)
indirectTiles.extend(nearbyTiles)
#print "Nearby Tiles", nearbyTiles
#print "Indirect Tiles", indirectTiles
if settings.TILEJET['heuristic']['up']['enabled']:
iDepth = getValue(settings.TILEJET['heuristic']['up'],'depth')
if iDepth:
parentTiles = getParentTiles(ix, iy, iz, depth=iDepth)
else:
parentTiles = getParentTiles(ix, iy, iz)
indirectTiles.extend(parentTiles)
#print "Parent Tiles"
#print parentTiles
heuristic_down = settings.TILEJET['heuristic']['down']
if heuristic_down['enabled']:
depth = heuristic_down['depth']
minZoom = heuristic_down['minZoom']
maxZoom = heuristic_down['maxZoom']
childrenTiles = getChildrenTiles(ix, iy, iz, depth, minZoom, maxZoom)
indirectTiles.extend(childrenTiles)
#print "Children Tiles: "+str(len(childrenTiles))
#print childrenTiles
#print "indirectTiles: ", indirectTiles
if gw_requests and indirectTiles:
start = time.time()
gw_requests.send_tile_requests(
str(tilesource['id']),
indirectTiles,
extension=ext,
now=now)
print "Duration Q: ", (time.time() - start)
#Check if requested tile is within source's extents
returnBlankTile = False
returnErrorTile = False
intersects = True
if tilesource['extents']:
intersects = bbox_intersects_source(tilesource,ix,iyf,iz)
if not intersects:
returnBlankTile = True
validZoom = 0
#Check if inside source zoom levels
if tilesource['minZoom'] or tilesource['maxZoom']:
if (tilesource['minZoom'] and iz < tilesource['minZoom']):
validZoom = -1
elif (tilesource['maxZoom'] and iz > tilesource['maxZoom']):
validZoom = 1
if validZoom != 0:
#returnBlank = True
returnErrorTile = True
if returnBlankTile:
print "responding with blank image"
image = blankTile(width=256, height=256)
response = HttpResponse(content_type="image/png")
image.save(response, "PNG")
return response
if returnErrorTile:
print "responding with a red image"
image = redTile(width=256, height=256)
response = HttpResponse(content_type="image/png")
image.save(response, "PNG")
return response
tile = None
if tilesource['cacheable'] and iz >= settings.TILEJET['cache']['memory']['minZoom'] and iz <= settings.TILEJET['cache']['memory']['maxZoom']:
#key = "{layer},{z},{x},{y},{ext}".format(layer=tilesource.name,x=ix,y=iy,z=iz,ext=ext)
key = ",".join([tilesource['name'],str(iz),str(ix),str(iy),ext])
tilecache, tile = getTileFromCache(
settings.CACHES['tiles']['LOCATION'],
settings.CACHES['tiles'],
'tiles',
key,
True,
GEVENT_MONKEY_PATCH=True)
if not tilecache:
print "Error: Could not connect to cache (tiles)."
line = "Error: Could not connect to cache (tiles)."
logTileRequestError(line, now)
if tile:
if verbose:
print "cache hit for "+key
logTileRequest(tileorigin, tilesource['name'], x, y, z, ext, 'hit', now, ip, gw_logs=gw_logs)
else:
if tilecache and verbose:
print "cache miss for "+key
logTileRequest(tileorigin, tilesource['name'], x, y, z, ext, 'miss', now, ip, gw_logs=gw_logs)
if tilesource['type'] == TYPE_TMS:
tile = requestTileFromSource(tilesource=tilesource,x=ix,y=iy,z=iz,ext=ext,verbose=True)
elif tilesource['type'] == TYPE_TMS_FLIPPED:
tile = requestTileFromSource(tilesource=tilesource,x=ix,y=iyf,z=iz,ext=ext,verbose=True)
elif tilesource['type'] == TYPE_BING:
tile = requestTileFromSource(tilesource=tilesource,u=u,ext=ext,verbose=True)
if settings.ASYNC_WRITEBACK:
from base64 import b64encode
try:
taskWriteBackTile.apply_async(
args=[key, json.dumps(tile['headers']), b64encode(tile['data'])],
kwargs=None,
queue="writeback")
except:
print "Error: Could not connect to writeback queue."
line = "Error: Could not connect to writeback queue."
logTileRequestError(line, now)
else:
try:
tilecache.set(key, tile)
except:
print "Error: Could not write back tile synchronously."
line = "Error: Could not write back tile synchronously."
logTileRequestError(line, now)
else:
if verbose:
print "cache bypass for "+tilesource['name']+"/"+str(iz)+"/"+str(ix)+"/"+str(iy)
logTileRequest(tileorigin, tilesource['name'], x, y, z, ext, 'bypass', now, ip, gw_logs=gw_logs)
if tilesource['type'] == TYPE_TMS:
tile = requestTileFromSource(tilesource=tilesource,x=ix,y=iy,z=iz,ext=ext,verbose=True)
elif tilesource['type'] == TYPE_TMS_FLIPPED:
tile = requestTileFromSource(tilesource=tilesource,x=ix,y=iyf,z=iz,ext=ext,verbose=True)
elif tilesource['type'] == TYPE_BING:
tile = requestTileFromSource(tilesource=tilesource,u=u,ext=ext,verbose=True)
if not tile:
print "responding with a red image"
image = redTile(width=256, height=256)
response = HttpResponse(content_type="image/png")
image.save(response, "PNG")
return response
#print "Headers:"
#print tile['headers']
image = Image.open(StringIO.StringIO(tile['data']))
#Is Tile blank. then band.getextrema should return 0,0 for band 4
#Tile Cache watermarking is messing up bands
#bands = image.split()
#for band in bands:
# print band.getextrema()
response = HttpResponse(content_type="image/png")
image.save(response, "PNG")
return response
def info(request):
#stats_tr = stats_tilerequest()
#cache, stats_tr = get_from_cache(
# settings.CACHES['default']['LOCATION'],
# settings.CACHES['default'],
# 'default',
# 'stats_tilerequests',
# GEVENT_MONKEY_PATCH=settings.TILEJET_GEVENT_MONKEY_PATCH)
caches = []
c = settings.TILEJET['cache']['memory']
stats_c = stats_cache()
if stats_c:
size = int(stats_c['bytes'])
maxsize = int(stats_c['limit_maxbytes'])
size_percentage = format(((100.0 * size) / maxsize),'.4f')+"%"
items = int(stats_c['curr_items'])
caches.append({
'name': 'memory',
'enabled': c['enabled'],
'description': c['description'],
'type': c['type'],
'size': formatMemorySize(size, original='B'),
'maxsize': formatMemorySize(maxsize, original='B'),
'size_percentage': size_percentage,
'items': items,
'minzoom': c['minZoom'],
'maxzoom': c['maxZoom'],
'expiration': c['expiration'],
'link_memcached': '/cache/stats/export/cache.json'
})
heuristics = []
h = settings.TILEJET['heuristic']['down']
heuristics.append({
'name': 'down',
'enabled': h['enabled'],
'description': h['description']
})
h = settings.TILEJET['heuristic']['up']
heuristics.append({
'name': 'up',
'enabled': h['enabled'],
'description': h['description']
})
h = settings.TILEJET['heuristic']['nearby']
heuristics.append({
'name': 'nearby',
'enabled': h['enabled'],
'description': h['description']
})
# Build Queues List
queues = []
try:
import celery
for key, raw_queues in celery.current_app.control.inspect().active_queues().items():
for q in raw_queues:
queues.append({
'name': getValue(q, u'name', fallback=''),
'routing_key': getValue(q, u'routing_key', fallback=''),
'durable': getValue(q, u'durable', fallback=False),
'ttl': getValue(q[u'queue_arguments'], u'x-message-ttl', fallback=-1)
})
#import pyrabbit.api
#pyrabbit_client = pyrabbit.api.Client(settings.BROKER_DOMAIN+':'+settings.BROKER_PORT, settings.BROKER_USER, settings.BROKER_PASSWORD)
for q in queues:
q['messages'] = 0
except:
print "Could not generate queues. Is celery or RabbitMQ offline?"
# Build Schedules Tasks
scheduled = []
try:
import celery
s = beat.Scheduler(app=celery.current_app)
scheduled = s.schedule.keys()
except:
print "Could not build scheduled tasks. Is celery beat running?"
#topics = []
#try:
# from kafka import KafkaClient
# kafka = KafkaClient(settings.TILEJET_GEOWATCH_HOST)
# for topic in kafka.topics:
# topic2 = {
# 'name': topic,
# 'partitions': len(kafka.topic_partitions.get(topic, []))
# }
# topics.append(topic2)
#except:
# print "Could not generate topics. Is Kafka offline?"
client = provision_geowatch_client()
topics = client.list_topics()
context_dict = {
'origins': getTileOrigins(),
'sources': getTileSources(),
'caches': caches,
'heuristics': heuristics,
'queues': queues,
'topics': topics,
'scheduled': scheduled,
'stats': settings.TILEJET_LIST_STATS,
'hosts': settings.PROXY_ALLOWED_HOSTS
}
return render_to_response(
"cache/info.html",
RequestContext(request, context_dict))