python-3.x - 请求包python异常证书错误
问题描述
我遇到了请求包和异常的问题。我捕获了异常,但程序仍然崩溃。这是因为我需要捕获正在发生的更具体的异常吗?
我知道为什么 SSL 证书说它无效。我遇到了时间同步问题。这是在这篇文章之外!我正在单独处理时间问题。
def getpublicIP():
#get public IP through IPify.org
for url in ['https://api.ipify.org']:
try:
ipaddress = requests.get(url, timeout=3).text
logging.error(f'IP address successful')
return ipaddress
except requests.ConnectionError:
logging.exception('Cannot get public IP')
return 0
因此,我的日志按原样返回“无法获取公共 IP”,然后程序崩溃。这是在日志中。
06/29/2020 03:28:26 PM - root - ERROR - Cannot get public IP
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 343, in _make_request
self._validate_conn(conn)
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 841, in _validate_conn
conn.connect()
File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 344, in connect
ssl_context=context)
File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 344, in ssl_wrap_socket
return context.wrap_socket(sock, server_hostname=server_hostname)
File "/usr/lib/python3.7/ssl.py", line 412, in wrap_socket
session=session
File "/usr/lib/python3.7/ssl.py", line 853, in _create
self.do_handshake()
File "/usr/lib/python3.7/ssl.py", line 1117, in do_handshake
self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:1056)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 638, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 398, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='api.ipify.org', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:1056)')))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/opt/BOB/mainBOB.py", line 365, in getpublicIP
ipaddress = requests.get(url, timeout=3).text
File "/usr/lib/python3/dist-packages/requests/api.py", line 75, in get
return request('get', url, params=params, **kwargs)
File "/usr/lib/python3/dist-packages/requests/api.py", line 60, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 514, in send
raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='api.ipify.org', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate is not yet valid (_ssl.c:1056)')))
我应该在连接错误之外特别捕获 requests.exceptions.SSLError 和 urllib3.exceptions.MaxRetryError 吗?我应该同时抓住它们还是只抓住第一个?
解决方案
经过大量研究后,我将以这种方式测试异常:
except requests.exceptions.SSLError as ssl_error:
我将报告以查看以这种方式捕获和处理错误是否可以避免程序崩溃。
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