Python settings.USE_ETAGS属性代码示例

# 需要导入模块: from django.conf import settings [as 别名]
# 或者: from django.conf.settings import USE_ETAGS [as 别名]
def process_response(self, request, response):
        """
        Calculate the ETag, if needed.
        """
        if settings.USE_ETAGS:
            if response.has_header('ETag'):
                etag = response['ETag']
            elif response.streaming:
                etag = None
            else:
                etag = '"%s"' % hashlib.md5(response.content).hexdigest()
            if etag is not None:
                if (200 <= response.status_code < 300
                        and request.META.get('HTTP_IF_NONE_MATCH') == etag):
                    cookies = response.cookies
                    response = http.HttpResponseNotModified()
                    response.cookies = cookies
                else:
                    response['ETag'] = etag

        return response 

# 需要导入模块: from django.conf import settings [as 别名]
# 或者: from django.conf.settings import USE_ETAGS [as 别名]
def patch_response_headers(response, cache_timeout=None):
    """
    Adds some useful headers to the given HttpResponse object:
        ETag, Last-Modified, Expires and Cache-Control

    Each header is only added if it isn't already set.

    cache_timeout is in seconds. The CACHE_MIDDLEWARE_SECONDS setting is used
    by default.
    """
    if cache_timeout is None:
        cache_timeout = settings.CACHE_MIDDLEWARE_SECONDS
    if cache_timeout < 0:
        cache_timeout = 0  # Can't have max-age negative
    if settings.USE_ETAGS and not response.has_header('ETag'):
        if hasattr(response, 'render') and callable(response.render):
            response.add_post_render_callback(_set_response_etag)
        else:
            response = _set_response_etag(response)
    if not response.has_header('Last-Modified'):
        response['Last-Modified'] = http_date()
    if not response.has_header('Expires'):
        response['Expires'] = http_date(time.time() + cache_timeout)
    patch_cache_control(response, max_age=cache_timeout) 

# 需要导入模块: from django.conf import settings [as 别名]
# 或者: from django.conf.settings import USE_ETAGS [as 别名]
def patch_response_headers(response, cache_timeout=None):
    """
    Adds some useful headers to the given HttpResponse object:
        ETag, Last-Modified, Expires and Cache-Control

    Each header is only added if it isn't already set.

    cache_timeout is in seconds. The CACHE_MIDDLEWARE_SECONDS setting is used
    by default.
    """
    if cache_timeout is None:
        cache_timeout = settings.CACHE_MIDDLEWARE_SECONDS
    if cache_timeout < 0:
        cache_timeout = 0 # Can't have max-age negative
    if settings.USE_ETAGS and not response.has_header('ETag'):
        if hasattr(response, 'render') and callable(response.render):
            response.add_post_render_callback(_set_response_etag)
        else:
            response = _set_response_etag(response)
    if not response.has_header('Last-Modified'):
        response['Last-Modified'] = http_date()
    if not response.has_header('Expires'):
        response['Expires'] = http_date(time.time() + cache_timeout)
    patch_cache_control(response, max_age=cache_timeout) 

# 需要导入模块: from django.conf import settings [as 别名]
# 或者: from django.conf.settings import USE_ETAGS [as 别名]
def process_response(self, request, response):
        """
        Calculate the ETag, if needed.

        When the status code of the response is 404, it may redirect to a path
        with an appended slash if should_redirect_with_slash() returns True.
        """
        # If the given URL is "Not Found", then check if we should redirect to
        # a path with a slash appended.
        if response.status_code == 404:
            if self.should_redirect_with_slash(request):
                return self.response_redirect_class(self.get_full_path_with_slash(request))

        if settings.USE_ETAGS:
            if not response.has_header('ETag'):
                set_response_etag(response)

            if response.has_header('ETag'):
                return get_conditional_response(
                    request,
                    etag=response['ETag'],
                    response=response,
                )

        return response 

# 需要导入模块: from django.conf import settings [as 别名]
# 或者: from django.conf.settings import USE_ETAGS [as 别名]
def patch_response_headers(response, cache_timeout=None):
    """
    Adds some useful headers to the given HttpResponse object:
        ETag, Last-Modified, Expires and Cache-Control

    Each header is only added if it isn't already set.

    cache_timeout is in seconds. The CACHE_MIDDLEWARE_SECONDS setting is used
    by default.
    """
    if cache_timeout is None:
        cache_timeout = settings.CACHE_MIDDLEWARE_SECONDS
    if cache_timeout < 0:
        cache_timeout = 0  # Can't have max-age negative
    if settings.USE_ETAGS and not response.has_header('ETag'):
        if hasattr(response, 'render') and callable(response.render):
            response.add_post_render_callback(set_response_etag)
        else:
            response = set_response_etag(response)
    if not response.has_header('Last-Modified'):
        response['Last-Modified'] = http_date()
    if not response.has_header('Expires'):
        response['Expires'] = http_date(time.time() + cache_timeout)
    patch_cache_control(response, max_age=cache_timeout) 

# 需要导入模块: from django.conf import settings [as 别名]
# 或者: from django.conf.settings import USE_ETAGS [as 别名]
def process_response(self, request, response):
        """
        Calculate the ETag, if needed.

        When the status code of the response is 404, it may redirect to a path
        with an appended slash if should_redirect_with_slash() returns True.
        """
        # If the given URL is "Not Found", then check if we should redirect to
        # a path with a slash appended.
        if response.status_code == 404:
            if self.should_redirect_with_slash(request):
                return self.response_redirect_class(self.get_full_path_with_slash(request))

        if settings.USE_ETAGS and self.needs_etag(response):
            warnings.warn(
                "The USE_ETAGS setting is deprecated in favor of "
                "ConditionalGetMiddleware which sets the ETag regardless of "
                "the setting. CommonMiddleware won't do ETag processing in "
                "Django 2.1.",
                RemovedInDjango21Warning
            )
            if not response.has_header('ETag'):
                set_response_etag(response)

            if response.has_header('ETag'):
                return get_conditional_response(
                    request,
                    etag=response['ETag'],
                    response=response,
                )
        # Add the Content-Length header to non-streaming responses if not
        # already set.
        if not response.streaming and not response.has_header('Content-Length'):
            response['Content-Length'] = str(len(response.content))

        return response 

# 需要导入模块: from django.conf import settings [as 别名]
# 或者: from django.conf.settings import USE_ETAGS [as 别名]
def patch_response_headers(response, cache_timeout=None):
    """
    Add HTTP caching headers to the given HttpResponse: Expires and
    Cache-Control.

    Each header is only added if it isn't already set.

    cache_timeout is in seconds. The CACHE_MIDDLEWARE_SECONDS setting is used
    by default.
    """
    if cache_timeout is None:
        cache_timeout = settings.CACHE_MIDDLEWARE_SECONDS
    if cache_timeout < 0:
        cache_timeout = 0  # Can't have max-age negative
    if settings.USE_ETAGS and not response.has_header('ETag'):
        warnings.warn(
            "The USE_ETAGS setting is deprecated in favor of "
            "ConditionalGetMiddleware which sets the ETag regardless of the "
            "setting. patch_response_headers() won't do ETag processing in "
            "Django 2.1.",
            RemovedInDjango21Warning
        )
        if hasattr(response, 'render') and callable(response.render):
            response.add_post_render_callback(set_response_etag)
        else:
            response = set_response_etag(response)
    if not response.has_header('Expires'):
        response['Expires'] = http_date(time.time() + cache_timeout)
    patch_cache_control(response, max_age=cache_timeout) 

# 需要导入模块: from django.conf import settings [as 别名]
# 或者: from django.conf.settings import USE_ETAGS [as 别名]
def process_response(self, request, response):
        "Send broken link emails and calculate the Etag, if needed."
        if response.status_code == 404:
            if settings.SEND_BROKEN_LINK_EMAILS and not settings.DEBUG:
                # If the referrer was from an internal link or a non-search-engine site,
                # send a note to the managers.
                domain = request.get_host()
                referer = request.META.get('HTTP_REFERER', None)
                is_internal = _is_internal_request(domain, referer)
                path = request.get_full_path()
                if referer and not _is_ignorable_404(path) and (is_internal or '?' not in referer):
                    ua = request.META.get('HTTP_USER_AGENT', '<none>')
                    ip = request.META.get('REMOTE_ADDR', '<none>')
                    mail_managers("Broken %slink on %s" % ((is_internal and 'INTERNAL ' or ''), domain),
                        "Referrer: %s\nRequested URL: %s\nUser agent: %s\nIP address: %s\n" \
                                  % (referer, request.get_full_path(), ua, ip),
                                  fail_silently=True)
                return response

        # Use ETags, if requested.
        if settings.USE_ETAGS:
            if response.has_header('ETag'):
                etag = response['ETag']
            elif response.streaming:
                etag = None
            else:
                etag = '"%s"' % hashlib.md5(response.content).hexdigest()
            if etag is not None:
                if (200 <= response.status_code < 300
                    and request.META.get('HTTP_IF_NONE_MATCH') == etag):
                    cookies = response.cookies
                    response = http.HttpResponseNotModified()
                    response.cookies = cookies
                else:
                    response['ETag'] = etag

        return response