message.content -> .raw_content, implement .text

This PR improves our handling of HTTP message body encodings:

- The unaltered message body is now accessible as `.raw_content`
- The "content-encoding"-decoded content (i.e. gzip removed) content
  is not `.content`, as this is what we want in 99% of the cases.
- `.text` now provides the "content-encoding"-decoded and then
  "content-type charset"-decoded message body.
- The decoded values for `.content` and `.text` are cached,
  so that repeated access and `x.text = x.text` is cheap.
- The `decoded()` decorator is now deprecated, as we can now just use
  `.content`. Similarly `HTTPMessage.get_decoded_content()` is
  deprecated.

1 files changed, 2 insertions, 2 deletions

diff --git a/netlib/http/http1/assemble.py b/netlib/http/http1/assemble.py
index 511328f1..e74732d2 100644
--- a/netlib/http/http1/assemble.py
+++ b/netlib/http/http1/assemble.py
@@ -5,7 +5,7 @@ from netlib import exceptions
 
 
 def assemble_request(request):
-    if request.content is None:
+    if request.data.content is None:
         raise exceptions.HttpException("Cannot assemble flow with missing content")
     head = assemble_request_head(request)
     body = b"".join(assemble_body(request.data.headers, [request.data.content]))
@@ -19,7 +19,7 @@ def assemble_request_head(request):
 
 
 def assemble_response(response):
-    if response.content is None:
+    if response.data.content is None:
         raise exceptions.HttpException("Cannot assemble flow with missing content")
     head = assemble_response_head(response)
     body = b"".join(assemble_body(response.data.headers, [response.data.content]))