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305 lines
10 KiB
305 lines
10 KiB
from couchpotato.core.event import fireEvent, addEvent
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from couchpotato.core.helpers.encoding import ss, toSafeString, \
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toUnicode, sp
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from couchpotato.core.helpers.variable import getExt, md5, isLocalIP
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from couchpotato.core.logger import CPLog
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from couchpotato.environment import Env
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import requests
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from requests.packages.urllib3 import Timeout
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from requests.packages.urllib3.exceptions import MaxRetryError
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from tornado import template
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from tornado.web import StaticFileHandler
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from urlparse import urlparse
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import glob
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import inspect
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import os.path
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import re
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import time
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import traceback
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import urllib2
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log = CPLog(__name__)
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class Plugin(object):
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_class_name = None
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plugin_path = None
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enabled_option = 'enabled'
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auto_register_static = True
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_needs_shutdown = False
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_running = None
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user_agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20130519 Firefox/24.0'
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http_last_use = {}
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http_time_between_calls = 0
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http_failed_request = {}
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http_failed_disabled = {}
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http_opener = requests.Session()
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def __new__(typ, *args, **kwargs):
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new_plugin = super(Plugin, typ).__new__(typ)
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new_plugin.registerPlugin()
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return new_plugin
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def registerPlugin(self):
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addEvent('app.do_shutdown', self.doShutdown)
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addEvent('plugin.running', self.isRunning)
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self._running = []
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if self.auto_register_static:
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self.registerStatic(inspect.getfile(self.__class__))
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def conf(self, attr, value = None, default = None, section = None):
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class_name = self.getName().lower().split(':')[0].lower()
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return Env.setting(attr, section = section if section else class_name, value = value, default = default)
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def deleteConf(self, attr):
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return Env._settings.delete(attr, section = self.getName().lower().split(':')[0].lower())
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def getName(self):
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return self._class_name or self.__class__.__name__
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def setName(self, name):
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self._class_name = name
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def renderTemplate(self, parent_file, templ, **params):
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t = template.Template(open(os.path.join(os.path.dirname(parent_file), templ), 'r').read())
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return t.generate(**params)
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def registerStatic(self, plugin_file, add_to_head = True):
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# Register plugin path
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self.plugin_path = os.path.dirname(plugin_file)
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static_folder = toUnicode(os.path.join(self.plugin_path, 'static'))
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if not os.path.isdir(static_folder):
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return
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# Get plugin_name from PluginName
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s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', self.__class__.__name__)
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class_name = re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()
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# View path
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path = 'static/plugin/%s/' % class_name
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# Add handler to Tornado
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Env.get('app').add_handlers(".*$", [(Env.get('web_base') + path + '(.*)', StaticFileHandler, {'path': static_folder})])
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# Register for HTML <HEAD>
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if add_to_head:
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for f in glob.glob(os.path.join(self.plugin_path, 'static', '*')):
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ext = getExt(f)
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if ext in ['js', 'css']:
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fireEvent('register_%s' % ('script' if ext in 'js' else 'style'), path + os.path.basename(f), f)
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def createFile(self, path, content, binary = False):
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path = ss(path)
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self.makeDir(os.path.dirname(path))
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if os.path.exists(path):
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log.debug('%s already exists, overwriting file with new version', path)
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try:
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f = open(path, 'w+' if not binary else 'w+b')
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f.write(content)
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f.close()
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os.chmod(path, Env.getPermission('file'))
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except:
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log.error('Unable writing to file "%s": %s', (path, traceback.format_exc()))
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if os.path.isfile(path):
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os.remove(path)
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def makeDir(self, path):
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path = ss(path)
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try:
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if not os.path.isdir(path):
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os.makedirs(path, Env.getPermission('folder'))
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return True
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except Exception as e:
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log.error('Unable to create folder "%s": %s', (path, e))
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return False
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# http request
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def urlopen(self, url, timeout = 30, data = None, headers = None, files = None, show_error = True):
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url = urllib2.quote(ss(url), safe = "%/:=&?~#+!$,;'@()*[]")
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if not headers: headers = {}
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if not data: data = {}
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# Fill in some headers
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parsed_url = urlparse(url)
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host = '%s%s' % (parsed_url.hostname, (':' + str(parsed_url.port) if parsed_url.port else ''))
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headers['Referer'] = headers.get('Referer', '%s://%s' % (parsed_url.scheme, host))
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headers['Host'] = headers.get('Host', host)
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headers['User-Agent'] = headers.get('User-Agent', self.user_agent)
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headers['Accept-encoding'] = headers.get('Accept-encoding', 'gzip')
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headers['Connection'] = headers.get('Connection', 'keep-alive')
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headers['Cache-Control'] = headers.get('Cache-Control', 'max-age=0')
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r = self.http_opener
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# Don't try for failed requests
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if self.http_failed_disabled.get(host, 0) > 0:
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if self.http_failed_disabled[host] > (time.time() - 900):
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log.info2('Disabled calls to %s for 15 minutes because so many failed requests.', host)
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if not show_error:
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raise Exception('Disabled calls to %s for 15 minutes because so many failed requests')
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else:
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return ''
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else:
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del self.http_failed_request[host]
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del self.http_failed_disabled[host]
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self.wait(host)
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try:
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kwargs = {
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'headers': headers,
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'data': data if len(data) > 0 else None,
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'timeout': timeout,
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'files': files,
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}
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method = 'post' if len(data) > 0 or files else 'get'
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log.info('Opening url: %s %s, data: %s', (method, url, [x for x in data.keys()] if isinstance(data, dict) else 'with data'))
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response = r.request(method, url, verify = False, **kwargs)
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if response.status_code == requests.codes.ok:
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data = response.content
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else:
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response.raise_for_status()
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self.http_failed_request[host] = 0
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except (IOError, MaxRetryError, Timeout):
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if show_error:
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log.error('Failed opening url in %s: %s %s', (self.getName(), url, traceback.format_exc(0)))
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# Save failed requests by hosts
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try:
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if not self.http_failed_request.get(host):
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self.http_failed_request[host] = 1
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else:
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self.http_failed_request[host] += 1
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# Disable temporarily
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if self.http_failed_request[host] > 5 and not isLocalIP(host):
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self.http_failed_disabled[host] = time.time()
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except:
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log.debug('Failed logging failed requests for %s: %s', (url, traceback.format_exc()))
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raise
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self.http_last_use[host] = time.time()
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return data
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def wait(self, host = ''):
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if self.http_time_between_calls == 0:
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return
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now = time.time()
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last_use = self.http_last_use.get(host, 0)
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if last_use > 0:
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wait = (last_use - now) + self.http_time_between_calls
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if wait > 0:
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log.debug('Waiting for %s, %d seconds', (self.getName(), wait))
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time.sleep(wait)
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def beforeCall(self, handler):
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self.isRunning('%s.%s' % (self.getName(), handler.__name__))
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def afterCall(self, handler):
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self.isRunning('%s.%s' % (self.getName(), handler.__name__), False)
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def doShutdown(self):
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self.shuttingDown(True)
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return True
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def shuttingDown(self, value = None):
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if value is None:
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return self._needs_shutdown
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self._needs_shutdown = value
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def isRunning(self, value = None, boolean = True):
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if value is None:
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return self._running
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if boolean:
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self._running.append(value)
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else:
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try:
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self._running.remove(value)
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except:
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log.error("Something went wrong when finishing the plugin function. Could not find the 'is_running' key")
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def getCache(self, cache_key, url = None, **kwargs):
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use_cache = not len(kwargs.get('data', {})) > 0 and not kwargs.get('files')
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if use_cache:
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cache_key_md5 = md5(cache_key)
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cache = Env.get('cache').get(cache_key_md5)
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if cache:
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if not Env.get('dev'): log.debug('Getting cache %s', cache_key)
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return cache
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if url:
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try:
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cache_timeout = 300
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if 'cache_timeout' in kwargs:
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cache_timeout = kwargs.get('cache_timeout')
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del kwargs['cache_timeout']
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data = self.urlopen(url, **kwargs)
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if data and cache_timeout > 0 and use_cache:
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self.setCache(cache_key, data, timeout = cache_timeout)
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return data
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except:
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if not kwargs.get('show_error', True):
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raise
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log.debug('Failed getting cache: %s', (traceback.format_exc(0)))
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return ''
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def setCache(self, cache_key, value, timeout = 300):
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cache_key_md5 = md5(cache_key)
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log.debug('Setting cache %s', cache_key)
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Env.get('cache').set(cache_key_md5, value, timeout)
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return value
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def createNzbName(self, data, media):
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tag = self.cpTag(media)
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return '%s%s' % (toSafeString(toUnicode(data.get('name'))[:127 - len(tag)]), tag)
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def createFileName(self, data, filedata, media):
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name = sp(os.path.join(self.createNzbName(data, media)))
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if data.get('protocol') == 'nzb' and 'DOCTYPE nzb' not in filedata and '</nzb>' not in filedata:
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return '%s.%s' % (name, 'rar')
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return '%s.%s' % (name, data.get('protocol'))
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def cpTag(self, media):
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if Env.setting('enabled', 'renamer'):
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return '.cp(' + media['library'].get('identifier') + ')' if media['library'].get('identifier') else ''
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return ''
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def isDisabled(self):
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return not self.isEnabled()
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def isEnabled(self):
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return self.conf(self.enabled_option) or self.conf(self.enabled_option) is None
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