Use CodeMessageException subclass instead

Parse json errors from get_json client methods and throw special
errors.

1 files changed, 11 insertions, 0 deletions

diff --git a/synapse/api/errors.py b/synapse/api/errors.py
index 6fbd5d6876..d0dfa959dc 100644
--- a/synapse/api/errors.py
+++ b/synapse/api/errors.py
@@ -66,6 +66,17 @@ class CodeMessageException(RuntimeError):
         return cs_error(self.msg)
 
 
+class MatrixCodeMessageException(CodeMessageException):
+    """An error from a general matrix endpoint, eg. from a proxied Matrix API call.
+
+    Attributes:
+        errcode (str): Matrix error code e.g 'M_FORBIDDEN'
+    """
+    def __init__(self, code, msg, errcode=Codes.UNKNOWN):
+        super(MatrixCodeMessageException, self).__init__(code, msg)
+        self.errcode = errcode
+
+
 class SynapseError(CodeMessageException):
     """A base exception type for matrix errors which have an errcode and error
     message (as well as an HTTP status code).