Add the ability to flag content as missing in a request or a response.

We'll use this in a number of situations. First, we'll soon have response
streaming that directly pipes responses to clients. These will be content-less
from mitmproxy's perspective. Second, we'll be growing new events that fire
after headers are received, but before content is read.

1 files changed, 6 insertions, 0 deletions

diff --git a/test/test_flow.py b/test/test_flow.py
index c91c456b..d9933515 100644
--- a/test/test_flow.py
+++ b/test/test_flow.py
@@ -688,6 +688,9 @@ class uRequest(libpry.AutoTree):
 
         assert r._assemble(True)
 
+        r.content = flow.CONTENT_MISSING
+        assert not r._assemble()
+
     def test_getset_form_urlencoded(self):
         h = flow.ODictCaseless()
         h["content-type"] = [flow.HDR_FORM_URLENCODED]
@@ -819,6 +822,9 @@ class uResponse(libpry.AutoTree):
         resp.request.client_conn.close = True
         assert "connection: close" in resp._assemble()
 
+        resp.content = flow.CONTENT_MISSING
+        assert not resp._assemble()
+
     def test_refresh(self):
         r = tutils.tresp()
         n = time.time()