Substitute a .gzt extension for .gz extensions to avoid an issue with…

… Safari in OSX

README.rst

@@ -607,7 +607,13 @@ and direct the user to the appropriate file based on the ACCEPT_ENCODING HTTP
 header. Assuming a file styles/layout.css, the following would be synced to S3::
 
 	styles/layout.css
-	styles/layout.css.gz
+	styles/layout.css.gzt
+
+Note the altered use of the .gz extension. Some versions of the Safari browser
+on OSX ignore the Content-Type header for files ending in .gz and treat them
+instead as files to download. This altered extension allows Safari to deflate
+and utilize the files correctly without affecting functionality in any other
+tested browsers.
 
 Signals
 =======

mediasync/backends/s3.py

@@ -90,12 +90,12 @@ def put(self, filedata, content_type, remote_path, force=False):
             # check to see if file should be gzipped based on content_type
             # also check to see if filesize is greater than 1kb
             if content_type in TYPES_TO_COMPRESS:
-
-                key = Key(self._bucket, "%s.gz" % remote_path)
+                # Use a .gzt extension to avoid issues with Safari on OSX
+                key = Key(self._bucket, "%s.gzt" % remote_path)
 
                 filedata = mediasync.compress(filedata)
                 (hexdigest, b64digest) = mediasync.checksum(filedata) # update checksum with compressed data
-                headers["Content-Disposition"] = 'inline; filename="%sgz"' % remote_path.split('/')[-1]
+                headers["Content-Disposition"] = 'inline; filename="%sgzt"' % remote_path.split('/')[-1]
                 headers["Content-Encoding"] = 'gzip'
 
                 key.set_metadata('mediasync-checksum', raw_b64digest)

mediasync/templatetags/media.py

@@ -63,7 +63,7 @@ def mkpath(self, url, path, filename=None, gzip=False):
           path: (str) The path on the host (specified in 'url') leading up
                       to the file.
           filename: (str) The file name to serve.
-          gzip: (bool) True if client should receive *.gz version of file.
+          gzip: (bool) True if client should receive *.gzt version of file.
         """
         if path:
             url = "%s/%s" % (url.rstrip('/'), path.strip('/'))
@@ -73,7 +73,7 @@ def mkpath(self, url, path, filename=None, gzip=False):
 
         content_type = mimetypes.guess_type(url)[0]
         if gzip and content_type in mediasync.TYPES_TO_COMPRESS:
-            url = "%s.gz" % url
+            url = "%s.gzt" % url
 
         cb = msettings['CACHE_BUSTER']
         if cb:

mediasync/tests/tests.py

@@ -239,10 +239,10 @@ def testSync(self):
 
             if content_type in mediasync.TYPES_TO_COMPRESS:
 
-                key = bucket.get_key("%s.gz" % path)
+                key = bucket.get_key("%s.gzt" % path)
 
                 # do a HEAD request on the file
-                http_conn.request('HEAD', "/%s/%s.gz" % (self.bucket_name, path))
+                http_conn.request('HEAD', "/%s/%s.gzt" % (self.bucket_name, path))
                 response = http_conn.getresponse()
                 response.read()