我正在设置一个新服务器“ LiteSpeed”，我正在使用Django 2.1.7 Web框架 一切都很好，直到我从管理员上传的照片名称中包含阿拉伯字母
此图片给我一个错误
“服务器遇到意外情况，阻止了它满足请求。” 所以我查看了服务器日志，发现链接抛出错误
2019-06-09 00:26:17.429165 [ERROR] [2699022] wsgiHandler pApp->start_response() return NULL.
Traceback (most recent call last):
File "/home/qassimchalets/virtualenv/Py/3.7/lib/python3.7/site-packages/django/core/handlers/wsgi.py", line 139, in __call__
set_script_prefix(get_script_name(environ))
File "/home/qassimchalets/virtualenv/Py/3.7/lib/python3.7/site-packages/django/core/handlers/wsgi.py", line 179, in get_script_name
script_url = get_bytes_from_wsgi(environ, 'SCRIPT_URL', '') or get_bytes_from_wsgi(environ, 'REDIRECT_URL', '')
File "/home/qassimchalets/virtualenv/Py/3.7/lib/python3.7/site-packages/django/core/handlers/wsgi.py", line 204, in get_bytes_from_wsgi
return value.encode('iso-8859-1')
UnicodeEncodeError: 'latin-1' codec can't encode characters in position 23-26: ordinal not in range(256)
我搜索了很多但都没有好结果 所以我改变了这一行 返回值.encode（'iso-8859-1'） 与 返回值.encode（'utf-8'） 在框架的核心 现在可以用于照片和其他照片的链接
我不知道它是否会影响其他事情，因为我在django处理程序核心中进行了更改，但不知道这实际上在做什么
class WSGIRequest(HttpRequest):
def __init__(self, environ):
script_name = get_script_name(environ)
# If PATH_INFO is empty (e.g. accessing the SCRIPT_NAME URL without a
# trailing slash), operate as if '/' was requested.
path_info = get_path_info(environ) or '/'
self.environ = environ
self.path_info = path_info
# be careful to only replace the first slash in the path because of
# http://test/something and http://test//something being different as
# stated in https://www.ietf.org/rfc/rfc2396.txt
self.path = '%s/%s' % (script_name.rstrip('/'),
path_info.replace('/', '', 1))
self.META = environ
self.META['PATH_INFO'] = path_info
self.META['SCRIPT_NAME'] = script_name
self.method = environ['REQUEST_METHOD'].upper()
self.content_type, self.content_params = cgi.parse_header(environ.get('CONTENT_TYPE', ''))
if 'charset' in self.content_params:
try:
codecs.lookup(self.content_params['charset'])
except LookupError:
pass
else:
self.encoding = self.content_params['charset']
self._post_parse_error = False
try:
content_length = int(environ.get('CONTENT_LENGTH'))
except (ValueError, TypeError):
content_length = 0
self._stream = LimitedStream(self.environ['wsgi.input'], content_length)
self._read_started = False
self.resolver_match = None
def _get_scheme(self):
return self.environ.get('wsgi.url_scheme')
@cached_property
def GET(self):
# The WSGI spec says 'QUERY_STRING' may be absent.
raw_query_string = get_bytes_from_wsgi(self.environ, 'QUERY_STRING', '')
return QueryDict(raw_query_string, encoding=self._encoding)
def _get_post(self):
if not hasattr(self, '_post'):
self._load_post_and_files()
return self._post
def _set_post(self, post):
self._post = post
@cached_property
def COOKIES(self):
raw_cookie = get_str_from_wsgi(self.environ, 'HTTP_COOKIE', '')
return parse_cookie(raw_cookie)
@property
def FILES(self):
if not hasattr(self, '_files'):
self._load_post_and_files()
return self._files
POST = property(_get_post, _set_post)
class WSGIHandler(base.BaseHandler):
request_class = WSGIRequest
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.load_middleware()
def __call__(self, environ, start_response):
set_script_prefix(get_script_name(environ))
signals.request_started.send(sender=self.__class__, environ=environ)
request = self.request_class(environ)
response = self.get_response(request)
response._handler_class = self.__class__
status = '%d %s' % (response.status_code, response.reason_phrase)
response_headers = list(response.items())
for c in response.cookies.values():
response_headers.append(('Set-Cookie', c.output(header='')))
start_response(status, response_headers)
if getattr(response, 'file_to_stream', None) is not None and environ.get('wsgi.file_wrapper'):
response = environ['wsgi.file_wrapper'](response.file_to_stream)
return response
def get_path_info(environ):
"""Return the HTTP request's PATH_INFO as a string."""
path_info = get_bytes_from_wsgi(environ, 'PATH_INFO', '/')
return repercent_broken_unicode(path_info).decode()
def get_script_name(environ):
"""
Return the equivalent of the HTTP request's SCRIPT_NAME environment
variable. If Apache mod_rewrite is used, return what would have been
the script name prior to any rewriting (so it's the script name as seen
from the client's perspective), unless the FORCE_SCRIPT_NAME setting is
set (to anything).
"""
if settings.FORCE_SCRIPT_NAME is not None:
return settings.FORCE_SCRIPT_NAME
# If Apache's mod_rewrite had a whack at the URL, Apache set either
# SCRIPT_URL or REDIRECT_URL to the full resource URL before applying any
# rewrites. Unfortunately not every Web server (lighttpd!) passes this
# information through all the time, so FORCE_SCRIPT_NAME, above, is still
# needed.
script_url = get_bytes_from_wsgi(environ, 'SCRIPT_URL', '') or get_bytes_from_wsgi(environ, 'REDIRECT_URL', '')
if script_url:
if b'//' in script_url:
# mod_wsgi squashes multiple successive slashes in PATH_INFO,
# do the same with script_url before manipulating paths (#17133).
script_url = _slashes_re.sub(b'/', script_url)
path_info = get_bytes_from_wsgi(environ, 'PATH_INFO', '')
script_name = script_url[:-len(path_info)] if path_info else script_url
else:
script_name = get_bytes_from_wsgi(environ, 'SCRIPT_NAME', '')
return script_name.decode()
def get_bytes_from_wsgi(environ, key, default):
"""
Get a value from the WSGI environ dictionary as bytes.
key and default should be strings.
"""
value = environ.get(key, default)
# Non-ASCII values in the WSGI environ are arbitrarily decoded with
# ISO-8859-1. This is wrong for Django websites where UTF-8 is the default.
# Re-encode to recover the original bytestring.
return value.encode('iso-8859-1')
我真的很害怕基于此更改的任何意外行为
请给我一个解决该错误的好的方法，因为我认为我的解决方案将来会出现更多的错误
答案 0 :(得分：0)
仅使用一种技术来确保文件名或图像名不包含任何会导致问题的字符
class City(models.Model):
name = models.CharField(max_length=100, verbose_name=_("City Name"),
validators=[RegexValidator(r'^[\u0621-\u064A\u0660-\u0669]+$')])
city_image = models.ImageField(upload_to='city/images/', blank=False, null=True, verbose_name=_("City Image"))
def save(self, force_insert=False, force_update=False, using=None,
update_fields=None):
name = self.city_image.name
extension = name.split('.')[-1]
for char in name:
if char not in 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.':
self.city_image.name = 'a' + '.' + extension
break
instance = super(City, self).save(force_insert=False, force_update=False, using=None,
update_fields=None)