+
+
+class HttpClient:
+ def __init__(self, cache=None, stats=None):
+ """
+ Prepare http request
+ Use cached elements or proceed http request
+ """
+ self.stats = stats
+ self.controller = CacheController(cache)
+ self.sess = Session()
+
+ def __call__(self, ress, payload):
+ req = Request('GET', ress, params=payload,).prepare()
+ if self.stats:
+ self.stats.update(total=self.stats.get('total')+1)
+ cached_response = self.controller.cached_request(req)
+ if cached_response:
+ if self.stats:
+ self.stats.update(ccontrol=self.stats.get('ccontrol')+1)
+ return cached_response
+ try:
+ return self.fetch_ws(req)
+ except Timeout as err:
+ raise WSTimeout(f'Failed to reach server within {SOCKET_TIMEOUT}s') from err
+ except HTTPConnectionError as err:
+ raise WSError(err) from err
+
+ @Throttle(WAIT_BETWEEN_REQUESTS)
+ def fetch_ws(self, prepreq):
+ """fetch from web service"""
+ settings = self.sess.merge_environment_settings(prepreq.url, {}, None, False, None)
+ resp = self.sess.send(prepreq, timeout=SOCKET_TIMEOUT, **settings)
+ if resp.status_code == 304:
+ self.stats.update(etag=self.stats.get('etag')+1)
+ resp = self.controller.update_cached_response(prepreq, resp)
+ elif resp.status_code != 200:
+ raise WSHTTPError(f'{resp.status_code}: {resp.reason}')
+ self.controller.cache_response(resp.request, resp)
+ return resp
+
+# VIM MODLINE
+# vim: ai ts=4 sw=4 sts=4 expandtab