be more strict about module namespaces

mitmproxy/contentviews.py

@@ -26,9 +26,8 @@ from PIL.ExifTags import TAGS
 import html2text
 import six
 from netlib.odict import ODict
-from netlib import encoding
-import netlib.http.headers
-from netlib.http import url, multipart
+from netlib import encoding, http
+from netlib.http import url
 from netlib.utils import clean_bin, hexdump
 from . import utils
 from .exceptions import ContentViewException
@@ -122,7 +121,7 @@ class ViewAuto(View):
         headers = metadata.get("headers", {})
         ctype = headers.get("content-type")
         if data and ctype:
-            ct = netlib.http.headers.parse_content_type(ctype) if ctype else None
+            ct = http.parse_content_type(ctype) if ctype else None
             ct = "%s/%s" % (ct[0], ct[1])
             if ct in content_types_map:
                 return content_types_map[ct][0](data, **metadata)
@@ -276,7 +275,7 @@ class ViewMultipart(View):
 
     def __call__(self, data, **metadata):
         headers = metadata.get("headers", {})
-        v = multipart.decode(headers, data)
+        v = http.multipart.decode(headers, data)
         if v:
             return "Multipart form", self._format(v)
 

mitmproxy/flow/export.py

@@ -5,7 +5,6 @@ from textwrap import dedent
 from six.moves.urllib.parse import quote, quote_plus
 
 import netlib.http
-import netlib.http.headers
 
 
 def curl_command(flow):
@@ -88,7 +87,7 @@ def raw_request(flow):
 
 def is_json(headers, content):
     if headers:
-        ct = netlib.http.headers.parse_content_type(headers.get("content-type", ""))
+        ct = netlib.http.parse_content_type(headers.get("content-type", ""))
         if ct and "%s/%s" % (ct[0], ct[1]) == "application/json":
             try:
                 return json.loads(content)

mitmproxy/flow/io_compat.py

@@ -65,5 +65,7 @@ def migrate_flow(flow_data):
             flow_data = converters[flow_version](flow_data)
         else:
             v = ".".join(str(i) for i in flow_data["version"])
-            raise ValueError("Incompatible serialized data version: {}".format(v))
+            raise ValueError(
+                "{} cannot read files serialized with version {}.".format(version.NAMEVERSION, v)
+            )
     return flow_data

netlib/http/__init__.py

@@ -1,14 +1,14 @@
 from __future__ import absolute_import, print_function, division
 from .request import Request
 from .response import Response
-from .headers import Headers
+from .headers import Headers, parse_content_type
 from .message import decoded
-from . import http1, http2, status_codes
+from . import http1, http2, status_codes, multipart
 
 __all__ = [
     "Request",
     "Response",
-    "Headers",
+    "Headers", "parse_content_type",
     "decoded",
-    "http1", "http2", "status_codes",
+    "http1", "http2", "status_codes", "multipart",
 ]

test/netlib/http/test_headers.py

@@ -1,5 +1,4 @@
-from netlib.http import Headers
-from netlib.http.headers import parse_content_type
+from netlib.http import Headers, parse_content_type
 from netlib.tutils import raises