letsencrypt nginxparser.py UnicodeDecodeError: ‘ascii‘ codec can‘t decode byte 0xe2 in position 29:

解决：

删除nginx配置文件中的非ascii字符就好。

背景：

给服务器添加https证书，运行./letsencrypt-auto时报错如下：

An unexpected error occurred:

UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 29: ordinal not in range(128)
Please see the logfiles in /var/log/letsencrypt for more details.

查看日志

cat  /var/log/letsencrypt/letsencrypt.log

错误日志

2018-06-14 09:29:57,660:DEBUG:certbot.log:Exiting abnormally:
Traceback (most recent call last):
  File "/opt/eff.org/certbot/venv/bin/letsencrypt", line 11, in 
    sys.exit(main())
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/main.py", line 1323, in main
    return config.func(config, plugins)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/main.py", line 1086, in run
    certname, lineage)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/main.py", line 120, in _get_and_save_cert
    lineage = le_client.obtain_and_enroll_certificate(domains, certname)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/client.py", line 383, in obtain_and_enroll_certificate
    cert, chain, key, _ = self.obtain_certificate(domains)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/client.py", line 326, in obtain_certificate
    orderr = self._get_order_and_authorizations(csr.data, self.config.allow_subset_of_names)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/client.py", line 362, in _get_order_and_authorizations
    authzr = self.auth_handler.handle_authorizations(orderr, best_effort)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/auth_handler.py", line 75, in handle_authorizations
    resp = self._solve_challenges(aauthzrs)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot/auth_handler.py", line 126, in _solve_challenges
    resp = self.auth.perform(all_achalls)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot_nginx/configurator.py", line 1045, in perform
    http_response = http_doer.perform()
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot_nginx/http_01.py", line 62, in perform
    self.configurator.save("HTTP Challenge", True)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot_nginx/configurator.py", line 975, in save
    self.parser.filedump(ext='')
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot_nginx/parser.py", line 243, in filedump
    out = nginxparser.dumps(tree)
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot_nginx/nginxparser.py", line 134, in dumps
    return str(RawNginxDumper(blocks.spaced))
  File "/opt/eff.org/certbot/venv/lib/python2.7/site-packages/certbot_nginx/nginxparser.py", line 98, in __str__
    return ''.join(self)

UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 29: ordinal not in range(128)

查找非Unicode字符串

# python
Python 2.7.5 (default, Apr 11 2018, 07:36:10)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-28)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
	>>> fname = '/etc/nginx/nginx.conf'
>>> with open(fname) as f:
...     ss = f.readlines()
...
>>> for s in ss:
...     try:
...             a = s.encode()
...     except UnicodeDecodeError:
...             print(s)
...