From 97aa3e65412ee241fce7721927b0b003daf51ed4 Mon Sep 17 00:00:00 2001 From: Tim Burke Date: Sat, 18 Apr 2020 22:41:55 -0700 Subject: Close connections created when calling module-level functions Co-Authored-By: Clay Gerrard Change-Id: Id62e63afc6f2ffa32eb8640787c78559481050f9 Related-Change: I200ad0cdc8b7999c3f5521b9a822122bd18714bf Related-Bug: #1873435 Closes-Bug: #1838775 --- swiftclient/client.py | 87 +++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 70 insertions(+), 17 deletions(-) (limited to 'swiftclient') diff --git a/swiftclient/client.py b/swiftclient/client.py index 5c63b60..544247a 100644 --- a/swiftclient/client.py +++ b/swiftclient/client.py @@ -268,7 +268,7 @@ class _ObjectBody(object): Readable and iterable object body response wrapper. """ - def __init__(self, resp, chunk_size): + def __init__(self, resp, chunk_size, conn_to_close): """ Wrap the underlying response @@ -277,9 +277,13 @@ class _ObjectBody(object): """ self.resp = resp self.chunk_size = chunk_size + self.conn_to_close = conn_to_close def read(self, length=None): - return self.resp.read(length) + buf = self.resp.read(length) + if length != 0 and not buf: + self.close() + return buf def __iter__(self): return self @@ -295,6 +299,8 @@ class _ObjectBody(object): def close(self): self.resp.close() + if self.conn_to_close: + self.conn_to_close.close() class _RetryBody(_ObjectBody): @@ -320,7 +326,7 @@ class _RetryBody(_ObjectBody): :param headers: an optional dictionary with additional headers to include in the request """ - super(_RetryBody, self).__init__(resp, resp_chunk_size) + super(_RetryBody, self).__init__(resp, resp_chunk_size, None) self.expected_length = int(self.resp.getheader('Content-Length')) self.conn = connection self.container = container @@ -443,17 +449,6 @@ class HTTPConnection(object): if timeout: self.requests_args['timeout'] = timeout - if not six.PY2: - def __del__(self): - """Cleanup resources other than memory""" - if self.request_session: - # The session we create must be closed to free up - # file descriptors - try: - self.request_session.close() - finally: - self.request_session = None - def _request(self, *arg, **kwarg): """Final wrapper before requests call, to be patched in tests""" return self.request_session.request(*arg, **kwarg) @@ -515,7 +510,7 @@ class HTTPConnection(object): # urllib3's connection pool. This will reduce the number of # log messages seen in bug #1341777. This does not actually # close a socket. It will also prevent people from being - # mislead as to the cause of a bug as in bug #1424732. + # misled as to the cause of a bug as in bug #1424732. self.resp.close() return chunk @@ -845,8 +840,10 @@ def get_account(url, token, marker=None, limit=None, prefix=None, if headers: req_headers.update(headers) + close_conn = False if not http_conn: http_conn = http_connection(url) + close_conn = True if full_listing: rv = get_account(url, token, marker, limit, prefix, end_marker, http_conn, headers=req_headers, delimiter=delimiter) @@ -876,6 +873,8 @@ def get_account(url, token, marker=None, limit=None, prefix=None, conn.request(method, full_path, '', req_headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(("%s?%s" % (url, qs), method,), {'headers': req_headers}, resp, body) @@ -902,10 +901,12 @@ def head_account(url, token, http_conn=None, headers=None, be lowercase) :raises ClientException: HTTP HEAD request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True method = "HEAD" req_headers = {'X-Auth-Token': token} if service_token: @@ -916,6 +917,8 @@ def head_account(url, token, http_conn=None, headers=None, conn.request(method, parsed.path, '', req_headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log((url, method,), {'headers': req_headers}, resp, body) if resp.status < 200 or resp.status >= 300: raise ClientException.from_response(resp, 'Account HEAD failed', body) @@ -941,10 +944,12 @@ def post_account(url, token, headers, http_conn=None, response_dict=None, :raises ClientException: HTTP POST request failed :returns: resp_headers, body """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True method = 'POST' path = parsed.path if query_string: @@ -957,6 +962,8 @@ def post_account(url, token, headers, http_conn=None, response_dict=None, conn.request(method, path, data, req_headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log((url, method,), {'headers': req_headers}, resp, body) store_response(resp, response_dict) @@ -998,8 +1005,10 @@ def get_container(url, token, container, marker=None, limit=None, headers will be a dict and all header names will be lowercase. :raises ClientException: HTTP GET request failed """ + close_conn = False if not http_conn: http_conn = http_connection(url) + close_conn = True if full_listing: rv = get_container(url, token, container, marker, limit, prefix, delimiter, end_marker, version_marker, path=path, @@ -1048,6 +1057,8 @@ def get_container(url, token, container, marker=None, limit=None, conn.request(method, '%s?%s' % (cont_path, qs), '', req_headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%(url)s%(cont_path)s?%(qs)s' % {'url': url.replace(parsed.path, ''), 'cont_path': cont_path, @@ -1078,10 +1089,12 @@ def head_container(url, token, container, http_conn=None, headers=None, be lowercase) :raises ClientException: HTTP HEAD request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True path = '%s/%s' % (parsed.path, quote(container)) method = 'HEAD' req_headers = {'X-Auth-Token': token} @@ -1092,6 +1105,8 @@ def head_container(url, token, container, http_conn=None, headers=None, conn.request(method, path, '', req_headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), method,), {'headers': req_headers}, resp, body) @@ -1119,10 +1134,12 @@ def put_container(url, token, container, headers=None, http_conn=None, :param query_string: if set will be appended with '?' to generated path :raises ClientException: HTTP PUT request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True path = '%s/%s' % (parsed.path, quote(container)) method = 'PUT' req_headers = {'X-Auth-Token': token} @@ -1137,6 +1154,8 @@ def put_container(url, token, container, headers=None, http_conn=None, conn.request(method, path, '', req_headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() store_response(resp, response_dict) @@ -1162,10 +1181,12 @@ def post_container(url, token, container, headers, http_conn=None, :param service_token: service auth token :raises ClientException: HTTP POST request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True path = '%s/%s' % (parsed.path, quote(container)) method = 'POST' req_headers = {'X-Auth-Token': token} @@ -1178,6 +1199,8 @@ def post_container(url, token, container, headers, http_conn=None, conn.request(method, path, '', req_headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), method,), {'headers': req_headers}, resp, body) @@ -1206,10 +1229,12 @@ def delete_container(url, token, container, http_conn=None, :param headers: additional headers to include in the request :raises ClientException: HTTP DELETE request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True path = '%s/%s' % (parsed.path, quote(container)) if headers: headers = dict(headers) @@ -1225,6 +1250,8 @@ def delete_container(url, token, container, http_conn=None, conn.request(method, path, '', headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), method,), {'headers': headers}, resp, body) @@ -1246,7 +1273,8 @@ def get_object(url, token, container, name, http_conn=None, :param container: container name that the object is in :param name: object name to get :param http_conn: a tuple of (parsed url, HTTPConnection object), - (If None, it will create the conn object) + (If None, it will create the conn object and close it + after all content is read) :param resp_chunk_size: if defined, chunk size of data to read. NOTE: If you specify a resp_chunk_size you must fully read the object's contents before making another @@ -1261,10 +1289,12 @@ def get_object(url, token, container, name, http_conn=None, headers will be a dict and all header names will be lowercase. :raises ClientException: HTTP GET request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True path = '%s/%s/%s' % (parsed.path, quote(container), quote(name)) if query_string: path += '?' + query_string @@ -1287,9 +1317,12 @@ def get_object(url, token, container, name, http_conn=None, {'headers': headers}, resp, body) raise ClientException.from_response(resp, 'Object GET failed', body) if resp_chunk_size: - object_body = _ObjectBody(resp, resp_chunk_size) + object_body = _ObjectBody(resp, resp_chunk_size, + conn_to_close=conn if close_conn else None) else: object_body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), method,), {'headers': headers}, resp, None) @@ -1313,10 +1346,12 @@ def head_object(url, token, container, name, http_conn=None, be lowercase) :raises ClientException: HTTP HEAD request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True path = '%s/%s/%s' % (parsed.path, quote(container), quote(name)) if query_string: path += '?' + query_string @@ -1331,6 +1366,8 @@ def head_object(url, token, container, name, http_conn=None, conn.request(method, path, '', headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), method,), {'headers': headers}, resp, body) if resp.status < 200 or resp.status >= 300: @@ -1380,10 +1417,12 @@ def put_object(url, token=None, container=None, name=None, contents=None, :returns: etag :raises ClientException: HTTP PUT request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url, proxy=proxy) + close_conn = True path = parsed.path if container: path = '%s/%s' % (path.rstrip('/'), quote(container)) @@ -1442,6 +1481,8 @@ def put_object(url, token=None, container=None, name=None, contents=None, resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), 'PUT',), {'headers': headers}, resp, body) @@ -1471,10 +1512,12 @@ def post_object(url, token, container, name, headers, http_conn=None, :param service_token: service auth token :raises ClientException: HTTP POST request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True path = '%s/%s/%s' % (parsed.path, quote(container), quote(name)) req_headers = {'X-Auth-Token': token} if service_token: @@ -1484,6 +1527,8 @@ def post_object(url, token, container, name, headers, http_conn=None, conn.request('POST', path, '', req_headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), 'POST',), {'headers': req_headers}, resp, body) @@ -1516,10 +1561,12 @@ def copy_object(url, token, container, name, destination=None, :param service_token: service auth token :raises ClientException: HTTP COPY request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url) + close_conn = True path = parsed.path container = quote(container) @@ -1548,6 +1595,8 @@ def copy_object(url, token, container, name, destination=None, conn.request('COPY', path, '', headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), 'COPY',), {'headers': headers}, resp, body) @@ -1580,10 +1629,12 @@ def delete_object(url, token=None, container=None, name=None, http_conn=None, :param service_token: service auth token :raises ClientException: HTTP DELETE request failed """ + close_conn = False if http_conn: parsed, conn = http_conn else: parsed, conn = http_connection(url, proxy=proxy) + close_conn = True path = parsed.path if container: path = '%s/%s' % (path.rstrip('/'), quote(container)) @@ -1602,6 +1653,8 @@ def delete_object(url, token=None, container=None, name=None, http_conn=None, conn.request('DELETE', path, '', headers) resp = conn.getresponse() body = resp.read() + if close_conn: + conn.close() http_log(('%s%s' % (url.replace(parsed.path, ''), path), 'DELETE',), {'headers': headers}, resp, body) -- cgit v1.2.1