[PATCH v4 2/9] views: Make 'patch_to_mbox' return a string

[Stephen Finucane]

The 'patch_to_mbox' function returns an object which is coverted to a
string in all places where this call occurs. The string conversion
differs between Python 2 and 3 and while it has been updated in one
place, it was missed in two others. Resolve these issues and ensure they
don't happen again by returning strings from 'patch_to_mbox' instead.

Signed-off-by: Stephen Finucane <stephen at that.guru>
Reviewed-by: Daniel Axtens <dja at axtens.net>
---
 patchwork/views/__init__.py | 7 +++++++
 patchwork/views/bundle.py   | 9 +++------
 patchwork/views/patch.py    | 9 +++------
 patchwork/views/xmlrpc.py   | 2 +-
 4 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/patchwork/views/__init__.py b/patchwork/views/__init__.py
index 7354f70..db53cdf 100644
--- a/patchwork/views/__init__.py
+++ b/patchwork/views/__init__.py
@@ -29,6 +29,7 @@ import re
 
 from django.contrib import messages
 from django.shortcuts import get_object_or_404
+from django.utils import six
 
 from patchwork.filters import Filters
 from patchwork.forms import MultiplePatchForm
@@ -400,4 +401,10 @@ def patch_to_mbox(patch):
     if 'Date' not in mail:
         mail['Date'] = email.utils.formatdate(utc_timestamp)
 
+    # NOTE(stephenfin) http://stackoverflow.com/a/28584090/613428
+    if six.PY3:
+        mail = mail.as_bytes(True).decode()
+    else:
+        mail = mail.as_string(True)
+
     return mail
diff --git a/patchwork/views/bundle.py b/patchwork/views/bundle.py
index 1886b7a..bab431c 100644
--- a/patchwork/views/bundle.py
+++ b/patchwork/views/bundle.py
@@ -130,18 +130,15 @@ def bundle_detail(request, username, bundlename):
 def bundle_mbox(request, username, bundlename):
     bundle = get_object_or_404(Bundle, owner__username=username,
                                name=bundlename)
-
-    if not (request.user == bundle.owner or bundle.public):
+    if request.user != bundle.owner and not bundle.public:
         return HttpResponseNotFound()
 
-    mbox = '\n'.join([patch_to_mbox(p).as_string(True)
-                      for p in bundle.ordered_patches()])
-
     response = HttpResponse(content_type='text/plain')
     response['Content-Disposition'] = \
         'attachment; filename=bundle-%d-%s.mbox' % (bundle.id, bundle.name)
+    response.write('\n'.join(
+        [patch_to_mbox(p) for p in bundle.ordered_patches()]))
 
-    response.write(mbox)
     return response
 
 
diff --git a/patchwork/views/patch.py b/patchwork/views/patch.py
index 469a53a..705359f 100644
--- a/patchwork/views/patch.py
+++ b/patchwork/views/patch.py
@@ -26,7 +26,6 @@ from django.http import HttpResponse
 from django.http import HttpResponseForbidden
 from django.http import HttpResponseRedirect
 from django.shortcuts import render, get_object_or_404
-from django.utils import six
 
 from patchwork.forms import PatchForm, CreateBundleForm
 from patchwork.models import Patch, Project, Bundle, Submission
@@ -121,17 +120,15 @@ def patch_raw(request, patch_id):
     response.write(patch.diff)
     response['Content-Disposition'] = 'attachment; filename=' + \
         patch.filename.replace(';', '').replace('\n', '')
+
     return response
 
 
 def patch_mbox(request, patch_id):
     patch = get_object_or_404(Patch, id=patch_id)
     response = HttpResponse(content_type="text/plain")
-    # NOTE(stephenfin) http://stackoverflow.com/a/28584090/613428
-    if six.PY3:
-        response.write(patch_to_mbox(patch).as_bytes(True).decode())
-    else:
-        response.write(patch_to_mbox(patch).as_string(True))
+    response.write(patch_to_mbox(patch))
     response['Content-Disposition'] = 'attachment; filename=' + \
         patch.filename.replace(';', '').replace('\n', '')
+
     return response
diff --git a/patchwork/views/xmlrpc.py b/patchwork/views/xmlrpc.py
index 66e908e..8b52d24 100644
--- a/patchwork/views/xmlrpc.py
+++ b/patchwork/views/xmlrpc.py
@@ -694,7 +694,7 @@ def patch_get_mbox(patch_id):
     """
     try:
         patch = Patch.objects.get(id=patch_id)
-        return patch_to_mbox(patch).as_string(True)
+        return patch_to_mbox(patch)
     except Patch.DoesNotExist:
         return ''
 
-- 
2.9.3