made content-type check case insensitive

added hack for application/json when doing transform check

src/canari/resources/templates/create_aws_lambda/app.py.bob

@@ -12,6 +12,7 @@ else:
     # noinspection PyUnresolvedReferences
     from ConfigParser import NoSectionError
 
+import chalice.app
 from chalice import Chalice, Response
 
 import canari
@@ -23,6 +24,17 @@ from canari.maltego.message import (MaltegoMessage, MaltegoTransformResponseMess
 from canari.maltego.transform import Transform
 from canari.mode import set_canari_mode, CanariMode
 
+
+def _matches_content_type(content_type, valid_content_types):
+    if ';' in content_type:
+        content_type = [c.lower() for c in content_type.split(';', 1)[0].strip()]
+    else:
+        content_type = content_type.lower()
+    return content_type in valid_content_types
+
+
+chalice.app._matches_content_type = _matches_content_type
+
 app = Chalice('Canari Lambda: {{{ project.name }}}')
 
 global_config = load_config(os.path.join('chalicelib', 'canari.conf'))
@@ -117,9 +129,10 @@ def get_{{{ transform.name.replace('.', '_') }}}():
     return Response('Yes?', status_code=200)
 
 
-@app.route('/{{{ transform.name }}}', methods=['POST'])
+@app.route('/{{{ transform.name }}}', methods=['POST'],
+           content_types=['text/xml', 'application/xml', 'application/json'])
 def post_{{{ transform.name.replace('.', '_') }}}():
-    if not app.current_request.headers.get('Content-Length', 0):
+    if not app.current_request.raw_body:
         return Response('Yes?', status_code=200)
     from {{{ transform.__module__ }}} import {{{ transform.__class__.__name__ }}}
     return do_transform({{{ transform.__class__.__name__ }}})