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3.4 KiB

import json
import threading
import traceback
import urllib
from couchpotato.core.helpers.request import getParams
from couchpotato.core.logger import CPLog
from tornado.gen import coroutine
from tornado.web import RequestHandler, asynchronous
log = CPLog(__name__)
api = {}
api_locks = {}
api_nonblock = {}
api_docs = {}
api_docs_missing = []
# NonBlock API handler
class NonBlockHandler(RequestHandler):
stopper = None
@asynchronous
def get(self, route, *args, **kwargs):
route = route.strip('/')
start, stop = api_nonblock[route]
self.stopper = stop
start(self.onNewMessage, last_id = self.get_argument('last_id', None))
def onNewMessage(self, response):
if self.request.connection.stream.closed():
self.on_connection_close()
return
try:
self.finish(response)
except:
log.debug('Failed doing nonblock request, probably already closed: %s', (traceback.format_exc()))
try: self.finish({'success': False, 'error': 'Failed returning results'})
except: pass
def on_connection_close(self):
if self.stopper:
self.stopper(self.onNewMessage)
self.stopper = None
def addNonBlockApiView(route, func_tuple, docs = None, **kwargs):
api_nonblock[route] = func_tuple
if docs:
api_docs[route[4:] if route[0:4] == 'api.' else route] = docs
else:
api_docs_missing.append(route)
# Blocking API handler
class ApiHandler(RequestHandler):
@coroutine
def get(self, route, *args, **kwargs):
route = route.strip('/')
if not api.get(route):
self.write('API call doesn\'t seem to exist')
return
api_locks[route].acquire()
try:
kwargs = {}
for x in self.request.arguments:
kwargs[x] = urllib.unquote(self.get_argument(x))
# Split array arguments
kwargs = getParams(kwargs)
kwargs['_request'] = self
# Remove t random string
try: del kwargs['t']
except: pass
# Fire api handler(s)
try:
result = api[route](**kwargs)
except:
log.error('Failed doing api request "%s": %s', (route, traceback.format_exc()))
result = {'success': False, 'error': 'Failed returning results'}
# Check JSONP callback
jsonp_callback = self.get_argument('callback_func', default = None)
if jsonp_callback:
self.write(str(jsonp_callback) + '(' + json.dumps(result) + ')')
self.set_header("Content-Type", "text/javascript")
elif isinstance(result, tuple) and result[0] == 'redirect':
self.redirect(result[1])
else:
self.write(result)
except:
log.error('Failed doing api request "%s": %s', (route, traceback.format_exc()))
self.write({'success': False, 'error': 'Failed returning results'})
api_locks[route].release()
post = get
def addApiView(route, func, static = False, docs = None, **kwargs):
if static: func(route)
else:
api[route] = func
api_locks[route] = threading.Lock()
if docs:
api_docs[route[4:] if route[0:4] == 'api.' else route] = docs
else:
api_docs_missing.append(route)