view tests/test-clone-cgi.t @ 36861:a88d68dc3ee8

hgweb: create dedicated type for WSGI responses

We have refactored the request side of WSGI processing into a dedicated
type. Now let's do the same thing for the response side.

We invent a ``wsgiresponse`` type. It takes an instance of a
request (for consulation) and the WSGI application's "start_response"
handler.

The type basically allows setting the HTTP status line, response
headers, and the response body.

The WSGI application calls sendresponse() to start sending output.
Output is emitted as a generator to be fed through the WSGI application.
According to PEP 3333, this is the preferred way for output to be
transmitted. (Our legacy ``wsgirequest`` exposed a write() to send
data. We do not wish to support this API because it isn't recommended
by PEP 3333.)

The wire protocol code has been ported to use the new API.

Differential Revision: https://phab.mercurial-scm.org/D2775

#require no-msys # MSYS will translate web paths as if they were file paths

This is a test of the wire protocol over CGI-based hgweb.
initialize repository

  $ hg init test
  $ cd test
  $ echo a > a
  $ hg ci -Ama
  adding a
  $ cd ..
  $ cat >hgweb.cgi <<HGWEB
  > #
  > # An example CGI script to use hgweb, edit as necessary
  > import cgitb
  > cgitb.enable()
  > from mercurial import demandimport; demandimport.enable()
  > from mercurial.hgweb import hgweb
  > from mercurial.hgweb import wsgicgi
  > application = hgweb("test", "Empty test repository")
  > wsgicgi.launch(application)
  > HGWEB
  $ chmod 755 hgweb.cgi

try hgweb request

  $ . "$TESTDIR/cgienv"
  $ QUERY_STRING="cmd=changegroup&roots=0000000000000000000000000000000000000000"; export QUERY_STRING
  $ $PYTHON hgweb.cgi >page1 2>&1
  $ $PYTHON "$TESTDIR/md5sum.py" page1
  1f424bb22ec05c3c6bc866b6e67efe43  page1

make sure headers are sent even when there is no body

  $ QUERY_STRING="cmd=listkeys&namespace=nosuchnamespace" $PYTHON hgweb.cgi
  Status: 200 Script output follows\r (esc)
  Content-Type: application/mercurial-0.1\r (esc)
  Content-Length: 0\r (esc)
  \r (esc)