Setting Content-Type: text/plain for non-Django DELETE responses

Author: ElSaico

Diff for: restless/fl.py

@@ -1,6 +1,7 @@
 from flask import make_response
 from flask import request
 
+from .constants import OK, NO_CONTENT
 from .resources import Resource
 
 
@@ -44,9 +45,14 @@ def is_debug(self):
         from flask import current_app
         return current_app.debug
 
-    def build_response(self, data, status=200):
+    def build_response(self, data, status=OK):
+        if status == NO_CONTENT:
+            # Avoid crashing the client when it tries to parse nonexisting JSON.
+            content_type = 'text/plain'
+        else:
+            content_type = 'application/json'
         return make_response(data, status, {
-            'Content-Type': 'application/json'
+            'Content-Type': content_type,
         })
 
     @classmethod

Diff for: restless/it.py

@@ -1,6 +1,8 @@
 import re
 
 import itty
+
+from restless.constants import OK, NO_CONTENT
 from restless.resources import Resource
 
 
@@ -16,8 +18,13 @@ class IttyResource(Resource):
     def is_debug(self):
         return self.debug
 
-    def build_response(self, data, status=200):
-        return itty.Response(data, status=status, content_type='application/json')
+    def build_response(self, data, status=OK):
+        if status == NO_CONTENT:
+            # Avoid crashing the client when it tries to parse nonexisting JSON.
+            content_type = 'text/plain'
+        else:
+            content_type = 'application/json'
+        return itty.Response(data, status=status, content_type=content_type)
 
     @classmethod
     def setup_urls(cls, rule_prefix):

Diff for: restless/pyr.py

@@ -1,7 +1,9 @@
 from pyramid.response import Response
 
+from .constants import OK, NO_CONTENT
 from .resources import Resource
 
+
 class PyramidResource(Resource):
     """
     A Pyramid-specific ``Resource`` subclass.
@@ -26,8 +28,13 @@ def _wrapper(request):
 
         return _wrapper
 
-    def build_response(self, data, status=200):
-        resp = Response(data, status_code=status, content_type="application/json")
+    def build_response(self, data, status=OK):
+        if status == NO_CONTENT:
+            # Avoid crashing the client when it tries to parse nonexisting JSON.
+            content_type = 'text/plain'
+        else:
+            content_type = 'application/json'
+        resp = Response(data, status_code=status, content_type=content_type)
         return resp
 
     @classmethod

Diff for: restless/tnd.py

@@ -1,5 +1,5 @@
 from tornado import web, gen
-from .constants import OK
+from .constants import OK, NO_CONTENT
 from .resources import Resource
 from .exceptions import MethodNotImplemented, Unauthorized
 
@@ -128,8 +128,14 @@ def request_method(self):
     def request_body(self):
         return self.request.body 
 
-    def build_response(self, data, status=200):
-        self.ref_rh.set_header("Content-Type", "application/json; charset=UTF-8")
+    def build_response(self, data, status=OK):
+        if status == NO_CONTENT:
+            # Avoid crashing the client when it tries to parse nonexisting JSON.
+            content_type = 'text/plain'
+        else:
+            content_type = 'application/json'
+        self.ref_rh.set_header("Content-Type", "{}; charset=UTF-8"
+                               .format(content_type))
 
         self.ref_rh.set_status(status)
         self.ref_rh.finish(data)