Added support for metadata on files, and support for POST:ing files to S3

moto/s3/models.py

@@ -10,6 +10,13 @@ class FakeKey(object):
         self.name = name
         self.value = value
         self.last_modified = datetime.datetime.now()
+        self._metadata = {}
+        
+    def set_metadata(self, key, metadata):
+        self._metadata[key] = metadata
+        
+    def get_metadata(self, key):
+        return self._metadata[key]
 
     def append_to_value(self, value):
         self.value += value
@@ -31,6 +38,10 @@ class FakeKey(object):
         # https://github.com/boto/boto/issues/466
         RFC1123 = '%a, %d %b %Y %H:%M:%S GMT'
         return self.last_modified.strftime(RFC1123)
+    
+    @property
+    def metadata(self):
+        return self._metadata
 
     @property
     def response_dict(self):