diff options
Diffstat (limited to 'python.d/python_modules/bases/FrameworkServices/UrlService.py')
-rw-r--r-- | python.d/python_modules/bases/FrameworkServices/UrlService.py | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/python.d/python_modules/bases/FrameworkServices/UrlService.py b/python.d/python_modules/bases/FrameworkServices/UrlService.py new file mode 100644 index 000000000..0941ab168 --- /dev/null +++ b/python.d/python_modules/bases/FrameworkServices/UrlService.py @@ -0,0 +1,115 @@ +# -*- coding: utf-8 -*- +# Description: +# Author: Pawel Krupa (paulfantom) +# Author: Ilya Mashchenko (l2isbad) + +import urllib3 + +from bases.FrameworkServices.SimpleService import SimpleService + +try: + urllib3.disable_warnings() +except AttributeError: + pass + + +class UrlService(SimpleService): + def __init__(self, configuration=None, name=None): + 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.proxy_user = self.configuration.get('proxy_user') + self.proxy_password = self.configuration.get('proxy_pass') + self.proxy_url = self.configuration.get('proxy_url') + self.header = self.configuration.get('header') + self.request_timeout = self.configuration.get('timeout', 1) + self._manager = None + + def __make_headers(self, **header_kw): + user = header_kw.get('user') or self.user + password = header_kw.get('pass') or self.password + proxy_user = header_kw.get('proxy_user') or self.proxy_user + proxy_password = header_kw.get('proxy_pass') or self.proxy_password + custom_header = header_kw.get('header') or self.header + header_params = dict(keep_alive=True) + proxy_header_params = dict() + if user and password: + header_params['basic_auth'] = '{user}:{password}'.format(user=user, + password=password) + if proxy_user and proxy_password: + proxy_header_params['proxy_basic_auth'] = '{user}:{password}'.format(user=proxy_user, + password=proxy_password) + try: + header, proxy_header = urllib3.make_headers(**header_params), urllib3.make_headers(**proxy_header_params) + except TypeError as error: + self.error('build_header() error: {error}'.format(error=error)) + return None, None + else: + header.update(custom_header or dict()) + return header, proxy_header + + def _build_manager(self, **header_kw): + header, proxy_header = self.__make_headers(**header_kw) + if header is None or proxy_header is None: + return None + proxy_url = header_kw.get('proxy_url') or self.proxy_url + if proxy_url: + manager = urllib3.ProxyManager + params = dict(proxy_url=proxy_url, headers=header, proxy_headers=proxy_header) + else: + manager = urllib3.PoolManager + params = dict(headers=header) + try: + url = header_kw.get('url') or self.url + if url.startswith('https'): + return manager(assert_hostname=False, cert_reqs='CERT_NONE', **params) + return manager(**params) + except (urllib3.exceptions.ProxySchemeUnknown, TypeError) as error: + self.error('build_manager() error:', str(error)) + return None + + def _get_raw_data(self, url=None, manager=None): + """ + Get raw data from http request + :return: str + """ + try: + url = url or self.url + manager = manager or self._manager + response = manager.request(method='GET', + url=url, + timeout=self.request_timeout, + retries=1, + headers=manager.headers) + except (urllib3.exceptions.HTTPError, TypeError, AttributeError) as error: + self.error('Url: {url}. Error: {error}'.format(url=url, error=error)) + return None + if response.status == 200: + return response.data.decode() + self.debug('Url: {url}. Http response status code: {code}'.format(url=url, code=response.status)) + return None + + def check(self): + """ + Format configuration data and try to connect to server + :return: boolean + """ + if not (self.url and isinstance(self.url, str)): + self.error('URL is not defined or type is not <str>') + return False + + self._manager = self._build_manager() + if not self._manager: + return False + + try: + data = self._get_data() + except Exception as error: + self.error('_get_data() failed. Url: {url}. Error: {error}'.format(url=self.url, error=error)) + return False + + if isinstance(data, dict) and data: + return True + self.error('_get_data() returned no data or type is not <dict>') + return False |