def index(request):
context = RequestContext(request)
try:
page = kegweb_models.Page.objects.get(name__exact="MainPage", status__exact="published")
except kegweb_models.Page.DoesNotExist:
page = None
context["page_node"] = page
context["taps"] = request.kbsite.taps.all()
try:
session = request.kbsite.sessions.latest()
if session.IsActiveNow():
context["current_session"] = session
except models.DrinkingSession.DoesNotExist:
pass
recent_images = models.Picture.objects.filter(site=request.kbsite, drink__isnull=False).order_by("-time")[:9]
context["recent_images"] = recent_images
events = request.kbsite.events.all()[:10]
context["initial_events"] = kbjson.dumps([protolib.ToDict(e, full=True) for e in events], indent=None)
sessions = request.kbsite.sessions.all().order_by("-seqn")[:10]
context["initial_sessions"] = kbjson.dumps([protolib.ToDict(s, full=True) for s in sessions], indent=None)
return render_to_response("index.html", context)
def py_to_json(f):
"""Decorator that wraps an API method.
The decorator transforms the method in a few ways:
- The raw return value from the method is converted to a serialized JSON
result.
- The result is wrapped in an outer dict, and set as the value 'result'
- If an exception is thrown during the method, it is converted to a protocol
error message.
"""
def new_function(*args, **kwargs):
request = args[0]
http_code = 200
indent = 2
if 'indent' in request.GET:
if request.GET['indent'] == '':
indent = None
else:
try:
indent_val = int(request.GET['indent'])
if indent_val >= 0 and indent_val <= 8:
indent = indent_val
except ValueError:
pass
try:
result_data = {'result' : f(*args, **kwargs)}
except Exception, e:
if settings.DEBUG and 'deb' in request.GET:
raise
result_data, http_code = ToJsonError(e)
return HttpResponse(kbjson.dumps(result_data, indent=indent),
mimetype='application/json', status=http_code)
def get_db_prep_save(self, value, connection):
"""Convert our JSON object to a string before we save"""
if not value:
return super(JSONField, self).get_db_prep_save("", connection=connection)
else:
return super(JSONField, self).get_db_prep_save(kbjson.dumps(value),
connection=connection)
def do_GET(self):
self._ExtractParams()
client = self.server.client
result = {
'ok': False,
}
username = self.params.get('username')
if username:
username = username[0]
if self.path == '/add' and username:
self.server._logger.info('adding: %s' % username)
client.SendAuthTokenAdd(FLAGS.tap_name, 'core.user', username)
result['ok'] = True
elif self.path == '/remove' and username:
self.server._logger.info('removing: %s' % username)
client.SendAuthTokenRemove(FLAGS.tap_name, 'core.user', username)
result['ok'] = True
elif self.path == '/flows':
result['ok'] = True
flow_dict = dict((k, v.ToDict()['data'])
for k, v in self.server.client.flows.iteritems())
result['flows'] = flow_dict
elif self.path == '/status':
result['ok'] = True
body = kbjson.dumps(result)
if self.callback:
body = '%s(%s)' % (self.callback, body)
return self._DoResponse(body=body, type="application/json")
def py_to_json(f):
"""Decorator that wraps an API method.
The decorator transforms the method in a few ways:
- The raw return value from the method is converted to a serialized JSON
result.
- The result is wrapped in an outer dict, and set as the value 'result'
- If an exception is thrown during the method, it is converted to a protocol
error message.
"""
def new_function(*args, **kwargs):
request = args[0]
http_code = 200
indent = 2
if 'indent' in request.GET:
if request.GET['indent'] == '':
indent = None
else:
try:
indent_val = int(request.GET['indent'])
if indent_val >= 0 and indent_val <= 8:
indent = indent_val
except ValueError:
pass
try:
result_data = {'result': f(*args, **kwargs)}
except Exception, e:
if settings.DEBUG and 'deb' in request.GET:
raise
result_data, http_code = ToJsonError(e, sys.exc_info())
return HttpResponse(kbjson.dumps(result_data, indent=indent),
mimetype='application/json',
status=http_code)
def do_GET(self):
self._ExtractParams()
client = self.server.client
result = {
'ok': False,
}
username = self.params.get('username')
if username:
username = username[0]
if self.path == '/add' and username:
self.server._logger.info('adding: %s' % username)
client.SendAuthTokenAdd(FLAGS.tap_name, 'core.user', username)
result['ok'] = True
elif self.path == '/remove' and username:
self.server._logger.info('removing: %s' % username)
client.SendAuthTokenRemove(FLAGS.tap_name, 'core.user', username)
result['ok'] = True
elif self.path == '/flows':
result['ok'] = True
flow_dict = dict((k, v.ToDict()['data']) for k, v in self.server.client.flows.iteritems())
result['flows'] = flow_dict
elif self.path == '/status':
result['ok'] = True
body = kbjson.dumps(result)
if self.callback:
body = '%s(%s)' % (self.callback, body)
return self._DoResponse(body=body, type="application/json")
def post_webhook_event(hook_url, event_list):
post_data = kbjson.dumps({'events': [protolib.ToDict(e) for e in event_list]})
post_data = urlencode({'payload': post_data})
opener = urllib2.build_opener()
opener.addheaders = [
('User-agent', 'Kegbot/%s' % util.kegbot_version()),
]
try:
opener.open(hook_url, data=post_data, timeout=5)
return True
except urllib2.URLError:
return False
def dump(output_fp, kbsite, indent=None, log_cb=_no_log):
"""Produce a dump of this Kegbot system to the given filestream.
In its current format, the dump is plaintext JSON string consisting of all
important data, including tap configuration, drink history, and user account
details.
All "derived" tables are NOT backed up. These are tables with data that can
be regenerated at any time without any loss of history. Specifically:
- session chunks
- user session chunks
- keg session chunks
- keg stats
- user stats
- session stats
- system events
"""
res = {}
items = (
('bdb_brewers', bdb_models.Brewer.objects.all()),
('bdb_styles', bdb_models.BeerStyle.objects.all()),
('bdb_beertypes', bdb_models.BeerType.objects.all()),
('thermosensors', kbsite.thermosensors.all().order_by('id')),
('kegs', kbsite.kegs.all().order_by('id')),
('taps', kbsite.taps.all().order_by('id')),
('sessions', kbsite.sessions.all().order_by('id')),
('thermologs', kbsite.thermologs.all().order_by('-id')[:60*24]),
('thermosummarylogs', kbsite.thermosummarylogs.all().order_by('id')),
('users', models.User.objects.all().order_by('id')),
('profiles', models.UserProfile.objects.all().order_by('id')),
('drinks', kbsite.drinks.valid().order_by('id')),
('tokens', kbsite.tokens.all().order_by('id')),
)
log_cb('Generating backup data ...')
for name, qs in items:
log_cb(' .. dumping %s' % name)
res[name] = list(protolib.ToDict(qs, full=True))
log_cb('Serializing and writing backup data ...')
output_fp.write(kbjson.dumps(res, indent=indent))
def py_to_json(f):
"""Decorator that wraps an API method.
The decorator transforms the method in a few ways:
- The raw return value from the method is converted to a serialized JSON
result.
- The result is wrapped in an outer dict, and set as the value 'result'
- If an exception is thrown during the method, it is converted to a protocol
error message.
"""
@never_cache
def new_function(*args, **kwargs):
request = args[0]
http_code = 200
indent = 2
if "indent" in request.GET:
if request.GET["indent"] == "":
indent = None
else:
try:
indent_val = int(request.GET["indent"])
if indent_val >= 0 and indent_val <= 8:
indent = indent_val
except ValueError:
pass
try:
result_data = prepare_data(f(*args, **kwargs))
result_data["meta"] = {"result": "ok"}
except Exception, e:
exc_info = sys.exc_info()
if settings.DEBUG and "deb" in request.GET:
raise exc_info[1], None, exc_info[2]
result_data, http_code = ToJsonError(e, exc_info)
result_data["meta"] = {"result": "error"}
return HttpResponse(kbjson.dumps(result_data, indent=indent), mimetype="application/json", status=http_code)
def __repr__(self): return kbjson.dumps(self)
def get_db_prep_save(self, value):
"""Convert our JSON object to a string before we save"""
if not value:
return super(JSONField, self).get_db_prep_save("")
else:
return super(JSONField, self).get_db_prep_save(kbjson.dumps(value))
def ToJson(self, indent=2):
return kbjson.dumps(self.ToDict(), indent=indent)
def post_webhook_event(hook_url, event_list):
post_data = kbjson.dumps({'events': event_list})
post_data = urlencode({'payload': post_data})
# TODO(mikey): set user agent to Kegbot.
urllib2.urlopen(hook_url, data=post_data)
return True
class ChartNode(Node):
CHART_TMPL = '''
<!-- begin chart %(chart_id)s -->
<div id="chart-%(chart_id)s-container"
style="height: %(height)spx; width: %(width)spx;"
class="kb-chartbox"></div>
<script type="text/javascript">
var chart_%(chart_id)s;
$(document).ready(function() {
var chart_data = %(chart_data)s;
chart_%(chart_id)s = new Highcharts.Chart(chart_data);
});
</script>
<!-- end chart %(chart_id)s -->
'''
ERROR_TMPL = '''
<!-- begin chart %(chart_id)s -->
<div id="chart-%(chart_id)s-container"
style="height: %(height)spx; width: %(width)spx;"
class="kb-chartbox-error">
%(error_str)s
</div>
<!-- end chart %(chart_id)s -->
'''
def __init__(self, charttype, width, height, args):
self._charttype = charttype
self._width = width
self._height = height
self._args = args
try:
self._chart_fn = getattr(self, 'chart_%s' % (self._charttype, ))
except AttributeError:
raise TemplateSyntaxError('unknown chart type: %s' %
self._charttype)
def _get_chart_id(self, context):
# TODO(mikey): Is there a better way to store _CHART_ID?
if not hasattr(context, '_CHART_ID'):
context._CHART_ID = 0
context._CHART_ID += 1
return context._CHART_ID
def render(self, context):
chart_id = self._get_chart_id(context)
width = self._width
height = self._height
obj = Variable(self._args[0]).resolve(context)
try:
chart_result = self._chart_fn(obj)
except charts.ChartError, e:
error_str = 'chart error: %s' % (e, )
return ChartNode.ERROR_TMPL % vars()
chart_base = {
'chart': {
'borderColor': '#eeeeff',
'borderWidth': 0,
'renderTo': 'chart-%s-container' % chart_id,
},
'credits': {
'enabled': False,
},
'legend': {
'enabled': False,
},
'margin': [0, 0, 0, 0],
'title': {
'text': None,
},
'yAxis': {
'labels': {
'align': 'left'
},
'title': {
'text': None,
}
},
}
chart_data = chart_base
for k, v in chart_result.iteritems():
if k not in chart_data:
chart_data[k] = v
elif type(v) == type({}):
chart_data[k].update(v)
else:
chart_data[k] = v
chart_data = kbjson.dumps(chart_data, indent=None)
return ChartNode.CHART_TMPL % vars()
def ToJson(self, indent=2): return kbjson.dumps(self.ToDict(), indent=indent)
def post_webhook_event(hook_url, event_list):
post_data = kbjson.dumps({'events': event_list})
post_data = urlencode({'payload': post_data})
# TODO(mikey): set user agent to Kegbot.
urllib2.urlopen(hook_url, data=post_data)
return True
def __repr__(self):
return kbjson.dumps(self)
