# using ".encode()" in one thread can block other threads as well (only in python2)
import time
-# import sys
import os
import socket
import select
+import threading
+import msg
+import ssl
+from subprocess import Popen, PIPE
+from sys import exc_info
+
+try:
+ from urlparse import urlparse
+except ImportError:
+ from urllib.parse import urlparse
+
try:
import urllib.request as urllib2
except ImportError:
import urllib2
-from subprocess import Popen, PIPE
-
-import threading
-import msg
-import ssl
+try:
+ import MySQLdb
+ PYMYSQL = True
+except ImportError:
+ try:
+ import pymysql as MySQLdb
+ PYMYSQL = True
+ except ImportError:
+ PYMYSQL = False
try:
PATH = os.getenv('PATH').split(':')
class UrlService(SimpleService):
- # TODO add support for https connections
def __init__(self, configuration=None, name=None):
- self.url = ""
- self.user = None
- self.password = None
- self.proxies = {}
SimpleService.__init__(self, configuration=configuration, name=name)
+ self.url = self.configuration.get('url')
+ self.user = self.configuration.get('user')
+ self.password = self.configuration.get('pass')
+ self.ss_cert = self.configuration.get('ss_cert')
def __add_openers(self):
- # TODO add error handling
- if self.ss_cert:
- try:
- ctx = ssl.create_default_context()
- ctx.check_hostname = False
- ctx.verify_mode = ssl.CERT_NONE
- self.opener = urllib2.build_opener(urllib2.HTTPSHandler(context=ctx))
- except Exception as error:
- self.error(str(error))
- self.opener = urllib2.build_opener()
- else:
- self.opener = urllib2.build_opener()
-
- # Proxy handling
- # TODO currently self.proxies isn't parsed from configuration file
- # if len(self.proxies) > 0:
- # for proxy in self.proxies:
- # url = proxy['url']
- # # TODO test this:
- # if "user" in proxy and "pass" in proxy:
- # if url.lower().startswith('https://'):
- # url = 'https://' + proxy['user'] + ':' + proxy['pass'] + '@' + url[8:]
- # else:
- # url = 'http://' + proxy['user'] + ':' + proxy['pass'] + '@' + url[7:]
- # # FIXME move proxy auth to sth like this:
- # # passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
- # # passman.add_password(None, url, proxy['user'], proxy['password'])
- # # opener.add_handler(urllib2.HTTPBasicAuthHandler(passman))
- #
- # if url.lower().startswith('https://'):
- # opener.add_handler(urllib2.ProxyHandler({'https': url}))
- # else:
- # opener.add_handler(urllib2.ProxyHandler({'https': url}))
+ def self_signed_cert(ss_cert):
+ if ss_cert:
+ try:
+ ctx = ssl.create_default_context()
+ ctx.check_hostname = False
+ ctx.verify_mode = ssl.CERT_NONE
+ return urllib2.build_opener(urllib2.HTTPSHandler(context=ctx))
+ except AttributeError:
+ return None
+ else:
+ return None
+
+ self.opener = self_signed_cert(self.ss_cert) or urllib2.build_opener()
# HTTP Basic Auth
- if self.user is not None and self.password is not None:
+ if self.user and self.password:
+ url_parse = urlparse(self.url)
+ top_level_url = '://'.join([url_parse.scheme, url_parse.netloc])
passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
- passman.add_password(None, self.url, self.user, self.password)
+ passman.add_password(None, top_level_url, self.user, self.password)
self.opener.add_handler(urllib2.HTTPBasicAuthHandler(passman))
self.debug("Enabling HTTP basic auth")
- #urllib2.install_opener(opener)
-
- def _get_raw_data(self):
+ def _get_raw_data(self, custom_url=None):
"""
Get raw data from http request
:return: str
"""
- raw = None
+ raw_data = None
+ f = None
try:
- f = self.opener.open(self.url, timeout=self.update_every * 2)
- # f = urllib2.urlopen(self.url, timeout=self.update_every * 2)
- except Exception as e:
- self.error(str(e))
+ f = self.opener.open(custom_url or self.url, timeout=self.update_every * 2)
+ raw_data = f.read().decode('utf-8', 'ignore')
+ except Exception as error:
+ self.error('Url: %s. Error: %s' %(custom_url or self.url, str(error)))
return None
-
- try:
- raw = f.read().decode('utf-8', 'ignore')
- except Exception as e:
- self.error(str(e))
finally:
- f.close()
- return raw
+ if f is not None: f.close()
+
+ return raw_data or None
def check(self):
"""
Format configuration data and try to connect to server
:return: boolean
"""
- if self.name is None or self.name == str(None):
- self.name = 'local'
- self.chart_name += "_" + self.name
- else:
- self.name = str(self.name)
- try:
- self.url = str(self.configuration['url'])
- except (KeyError, TypeError):
- pass
- try:
- self.user = str(self.configuration['user'])
- except (KeyError, TypeError):
- pass
- try:
- self.password = str(self.configuration['pass'])
- except (KeyError, TypeError):
- pass
- self.ss_cert = self.configuration.get('ss_cert')
+ if not (self.url and isinstance(self.url, str)):
+ self.error('URL is not defined or type is not <str>')
+ return False
+
self.__add_openers()
- test = self._get_data()
- if test is None or len(test) == 0:
+ try:
+ data = self._get_data()
+ except Exception as error:
+ self.error('_get_data() failed. Url: %s. Error: %s' % (self.url, error))
return False
- else:
+
+ if isinstance(data, dict) and data:
+ self._data_from_check = data
return True
+ else:
+ self.error("_get_data() returned no data or type is not <dict>")
+ return False
class SocketService(SimpleService):
else:
self.error("Command", str(self.command), "returned no data")
return False
+
+
+class MySQLService(SimpleService):
+
+ def __init__(self, configuration=None, name=None):
+ SimpleService.__init__(self, configuration=configuration, name=name)
+ self.__connection = None
+ self.__conn_properties = dict()
+ self.extra_conn_properties = dict()
+ self.__queries = self.configuration.get('queries', dict())
+ self.queries = dict()
+
+ def __connect(self):
+ try:
+ connection = MySQLdb.connect(connect_timeout=self.update_every, **self.__conn_properties)
+ except (MySQLdb.MySQLError, TypeError, AttributeError) as error:
+ return None, str(error)
+ else:
+ return connection, None
+
+ def check(self):
+ def get_connection_properties(conf, extra_conf):
+ properties = dict()
+ if 'user' in conf and conf['user']:
+ properties['user'] = conf['user']
+ if 'pass' in conf and conf['pass']:
+ properties['passwd'] = conf['pass']
+ if 'socket' in conf and conf['socket']:
+ properties['unix_socket'] = conf['socket']
+ elif 'host' in conf and conf['host']:
+ properties['host'] = conf['host']
+ properties['port'] = int(conf.get('port', 3306))
+ elif 'my.cnf' in conf and conf['my.cnf']:
+ properties['read_default_file'] = conf['my.cnf']
+ if isinstance(extra_conf, dict) and extra_conf:
+ properties.update(extra_conf)
+
+ return properties or None
+
+ def is_valid_queries_dict(raw_queries, log_error):
+ """
+ :param raw_queries: dict:
+ :param log_error: function:
+ :return: dict or None
+
+ raw_queries is valid when: type <dict> and not empty after is_valid_query(for all queries)
+ """
+ def is_valid_query(query):
+ return all([isinstance(query, str),
+ query.startswith(('SELECT', 'select', 'SHOW', 'show'))])
+
+ if hasattr(raw_queries, 'keys') and raw_queries:
+ valid_queries = dict([(n, q) for n, q in raw_queries.items() if is_valid_query(q)])
+ bad_queries = set(raw_queries) - set(valid_queries)
+
+ if bad_queries:
+ log_error('Removed query(s): %s' % bad_queries)
+ return valid_queries
+ else:
+ log_error('Unsupported "queries" format. Must be not empty <dict>')
+ return None
+
+ if not PYMYSQL:
+ self.error('MySQLdb or PyMySQL module is needed to use mysql.chart.py plugin')
+ return False
+
+ # Preference: 1. "queries" from the configuration file 2. "queries" from the module
+ self.queries = self.__queries or self.queries
+ # Check if "self.queries" exist, not empty and all queries are in valid format
+ self.queries = is_valid_queries_dict(self.queries, self.error)
+ if not self.queries:
+ return None
+
+ # Get connection properties
+ self.__conn_properties = get_connection_properties(self.configuration, self.extra_conn_properties)
+ if not self.__conn_properties:
+ self.error('Connection properties are missing')
+ return False
+
+ # Create connection to the database
+ self.__connection, error = self.__connect()
+ if error:
+ self.error('Can\'t establish connection to MySQL: %s' % error)
+ return False
+
+ try:
+ data = self._get_data()
+ except Exception as error:
+ self.error('_get_data() failed. Error: %s' % error)
+ return False
+
+ if isinstance(data, dict) and data:
+ # We need this for create() method
+ self._data_from_check = data
+ return True
+ else:
+ self.error("_get_data() returned no data or type is not <dict>")
+ return False
+
+ def _get_raw_data(self, description=None):
+ """
+ Get raw data from MySQL server
+ :return: dict: fetchall() or (fetchall(), description)
+ """
+
+ if not self.__connection:
+ self.__connection, error = self.__connect()
+ if error:
+ return None
+
+ raw_data = dict()
+ queries = dict(self.queries)
+ try:
+ with self.__connection as cursor:
+ for name, query in queries.items():
+ try:
+ cursor.execute(query)
+ except (MySQLdb.ProgrammingError, MySQLdb.OperationalError) as error:
+ if self.__is_error_critical(err_class=exc_info()[0], err_text=str(error)):
+ raise RuntimeError
+ self.error('Removed query: %s[%s]. Error: %s'
+ % (name, query, error))
+ self.queries.pop(name)
+ continue
+ else:
+ raw_data[name] = (cursor.fetchall(), cursor.description) if description else cursor.fetchall()
+ self.__connection.commit()
+ except (MySQLdb.MySQLError, RuntimeError, TypeError, AttributeError):
+ self.__connection.close()
+ self.__connection = None
+ return None
+ else:
+ return raw_data or None
+
+ @staticmethod
+ def __is_error_critical(err_class, err_text):
+ return err_class == MySQLdb.OperationalError and all(['denied' not in err_text,
+ 'Unknown column' not in err_text])
projects / netdata.git / blobdiff