Ajoutez des fichiers projet.

venv/Lib/site-packages/django/middleware/gzip.py

@@ -0,0 +1,51 @@
+from django.utils.cache import patch_vary_headers
+from django.utils.deprecation import MiddlewareMixin
+from django.utils.regex_helper import _lazy_re_compile
+from django.utils.text import compress_sequence, compress_string
+
+re_accepts_gzip = _lazy_re_compile(r'\bgzip\b')
+
+
+class GZipMiddleware(MiddlewareMixin):
+    """
+    Compress content if the browser allows gzip compression.
+    Set the Vary header accordingly, so that caches will base their storage
+    on the Accept-Encoding header.
+    """
+    def process_response(self, request, response):
+        # It's not worth attempting to compress really short responses.
+        if not response.streaming and len(response.content) < 200:
+            return response
+
+        # Avoid gzipping if we've already got a content-encoding.
+        if response.has_header('Content-Encoding'):
+            return response
+
+        patch_vary_headers(response, ('Accept-Encoding',))
+
+        ae = request.META.get('HTTP_ACCEPT_ENCODING', '')
+        if not re_accepts_gzip.search(ae):
+            return response
+
+        if response.streaming:
+            # Delete the `Content-Length` header for streaming content, because
+            # we won't know the compressed size until we stream it.
+            response.streaming_content = compress_sequence(response.streaming_content)
+            del response.headers['Content-Length']
+        else:
+            # Return the compressed content only if it's actually shorter.
+            compressed_content = compress_string(response.content)
+            if len(compressed_content) >= len(response.content):
+                return response
+            response.content = compressed_content
+            response.headers['Content-Length'] = str(len(response.content))
+
+        # If there is a strong ETag, make it weak to fulfill the requirements
+        # of RFC 7232 section-2.1 while also allowing conditional request
+        # matches on ETags.
+        etag = response.get('ETag')
+        if etag and etag.startswith('"'):
+            response.headers['ETag'] = 'W/' + etag
+        response.headers['Content-Encoding'] = 'gzip'
+
+        return response