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from StringIO import StringIO
from couchpotato.core.event import fireEvent, addEvent
from couchpotato.core.helpers.encoding import tryUrlencode, ss, toSafeString
from couchpotato.core.helpers.variable import getExt, md5
from couchpotato.core.logger import CPLog
from couchpotato.environment import Env
from multipartpost import MultipartPostHandler
from tornado import template
from tornado.web import StaticFileHandler
from urlparse import urlparse
import cookielib
import glob
import gzip
import math
import os.path
import re
import time
import traceback
import urllib2
log = CPLog(__name__)
class Plugin(object):
enabled_option = 'enabled'
auto_register_static = True
_needs_shutdown = False
user_agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20130519 Firefox/24.0'
http_last_use = {}
http_time_between_calls = 0
http_failed_request = {}
http_failed_disabled = {}
def registerPlugin(self):
addEvent('app.do_shutdown', self.doShutdown)
addEvent('plugin.running', self.isRunning)
def conf(self, attr, value = None, default = None):
return Env.setting(attr, self.getName().lower(), value = value, default = default)
def getName(self):
return self.__class__.__name__
def renderTemplate(self, parent_file, templ, **params):
t = template.Template(open(os.path.join(os.path.dirname(parent_file), templ), 'r').read())
return t.generate(**params)
def registerStatic(self, plugin_file, add_to_head = True):
# Register plugin path
self.plugin_path = os.path.dirname(plugin_file)
static_folder = os.path.join(self.plugin_path, 'static')
if not os.path.isdir(static_folder):
return
# Get plugin_name from PluginName
s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', self.__class__.__name__)
class_name = re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()
# View path
path = 'api/%s/static/%s/' % (Env.setting('api_key'), class_name)
# Add handler to Tornado
Env.get('app').add_handlers(".*$", [(Env.get('web_base') + path + '(.*)', StaticFileHandler, {'path': static_folder})])
# Register for HTML <HEAD>
if add_to_head:
for f in glob.glob(os.path.join(self.plugin_path, 'static', '*')):
ext = getExt(f)
if ext in ['js', 'css']:
fireEvent('register_%s' % ('script' if ext in 'js' else 'style'), path + os.path.basename(f), f)
def createFile(self, path, content, binary = False):
path = ss(path)
self.makeDir(os.path.dirname(path))
try:
f = open(path, 'w+' if not binary else 'w+b')
f.write(content)
f.close()
os.chmod(path, Env.getPermission('file'))
except Exception, e:
log.error('Unable writing to file "%s": %s', (path, e))
def makeDir(self, path):
path = ss(path)
try:
if not os.path.isdir(path):
os.makedirs(path, Env.getPermission('folder'))
return True
except Exception, e:
log.error('Unable to create folder "%s": %s', (path, e))
return False
# http request
def urlopen(self, url, timeout = 30, params = None, headers = None, opener = None, multipart = False, show_error = True):
url = ss(url)
if not headers: headers = {}
if not params: params = {}
# Fill in some headers
parsed_url = urlparse(url)
host = parsed_url.hostname
headers['Referer'] = headers.get('Referer', '%s://%s' % (parsed_url.scheme, host))
headers['Host'] = headers.get('Host', host)
headers['User-Agent'] = headers.get('User-Agent', self.user_agent)
headers['Accept-encoding'] = headers.get('Accept-encoding', 'gzip')
# Don't try for failed requests
if self.http_failed_disabled.get(host, 0) > 0:
if self.http_failed_disabled[host] > (time.time() - 900):
log.info2('Disabled calls to %s for 15 minutes because so many failed requests.', host)
if not show_error:
raise
else:
return ''
else:
del self.http_failed_request[host]
del self.http_failed_disabled[host]
self.wait(host)
try:
if multipart:
log.info('Opening multipart url: %s, params: %s', (url, [x for x in params.iterkeys()] if isinstance(params, dict) else 'with data'))
request = urllib2.Request(url, params, headers)
if opener:
opener.add_handler(MultipartPostHandler())
else:
cookies = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookies), MultipartPostHandler)
response = opener.open(request, timeout = timeout)
else:
log.info('Opening url: %s, params: %s', (url, [x for x in params.iterkeys()] if isinstance(params, dict) else 'with data'))
data = tryUrlencode(params) if len(params) > 0 else None
request = urllib2.Request(url, data, headers)
if opener:
response = opener.open(request, timeout = timeout)
else:
response = urllib2.urlopen(request, timeout = timeout)
# unzip if needed
if response.info().get('Content-Encoding') == 'gzip':
buf = StringIO(response.read())
f = gzip.GzipFile(fileobj = buf)
data = f.read()
else:
data = response.read()
self.http_failed_request[host] = 0
except IOError:
if show_error:
log.error('Failed opening url in %s: %s %s', (self.getName(), url, traceback.format_exc(1)))
# Save failed requests by hosts
try:
if not self.http_failed_request.get(host):
self.http_failed_request[host] = 1
else:
self.http_failed_request[host] += 1
# Disable temporarily
if self.http_failed_request[host] > 5:
self.http_failed_disabled[host] = time.time()
except:
log.debug('Failed logging failed requests for %s: %s', (url, traceback.format_exc()))
raise
self.http_last_use[host] = time.time()
return data
def wait(self, host = ''):
now = time.time()
last_use = self.http_last_use.get(host, 0)
wait = math.ceil(last_use - now + self.http_time_between_calls)
if wait > 0:
log.debug('Waiting for %s, %d seconds', (self.getName(), wait))
time.sleep(last_use - now + self.http_time_between_calls)
def beforeCall(self, handler):
self.isRunning('%s.%s' % (self.getName(), handler.__name__))
def afterCall(self, handler):
self.isRunning('%s.%s' % (self.getName(), handler.__name__), False)
def doShutdown(self):
self.shuttingDown(True)
return True
def shuttingDown(self, value = None):
if value is None:
return self._needs_shutdown
self._needs_shutdown = value
def isRunning(self, value = None, boolean = True):
if not hasattr(self, '_running'):
self._running = []
if value is None:
return self._running
if boolean:
self._running.append(value)
else:
try:
self._running.remove(value)
except:
log.error("Something went wrong when finishing the plugin function. Could not find the 'is_running' key")
def getCache(self, cache_key, url = None, **kwargs):
cache_key = md5(ss(cache_key))
cache = Env.get('cache').get(cache_key)
if cache:
if not Env.get('dev'): log.debug('Getting cache %s', cache_key)
return cache
if url:
try:
cache_timeout = 300
if kwargs.get('cache_timeout'):
cache_timeout = kwargs.get('cache_timeout')
del kwargs['cache_timeout']
data = self.urlopen(url, **kwargs)
if data:
self.setCache(cache_key, data, timeout = cache_timeout)
return data
except:
if not kwargs.get('show_error', True):
raise
return ''
def setCache(self, cache_key, value, timeout = 300):
log.debug('Setting cache %s', cache_key)
Env.get('cache').set(cache_key, value, timeout)
return value
def createNzbName(self, data, movie):
tag = self.cpTag(movie)
return '%s%s' % (toSafeString(data.get('name')[:127 - len(tag)]), tag)
def createFileName(self, data, filedata, movie):
name = os.path.join(self.createNzbName(data, movie))
if data.get('type') == 'nzb' and 'DOCTYPE nzb' not in filedata and '</nzb>' not in filedata:
return '%s.%s' % (name, 'rar')
return '%s.%s' % (name, data.get('type'))
def cpTag(self, movie):
if Env.setting('enabled', 'renamer'):
return '.cp(' + movie['library'].get('identifier') + ')' if movie['library'].get('identifier') else ''
return ''
def isDisabled(self):
return not self.isEnabled()
def isEnabled(self):
return self.conf(self.enabled_option) or self.conf(self.enabled_option) == None