WIP positron-check-signature

DEPENDENCIES

@@ -1,6 +1,6 @@
 # 1st Party Dependencies
 ## Prefer git tags instead of SHA hashes when possible.
 
-pEpEngine=v3.3.0-RC10
+pEpEngine=v3.3.0-RC12
 libpEpAdapter= v3.2.0-RC5
 libpEpCxx=v3.2.0-RC1

src/pEp/_pEp/message.cc

@@ -344,6 +344,15 @@ namespace pEp {
             msg_c->recv_by = new_recv_by_copy_c;
         }
 
+        void Message::check_signature()
+        {
+            ::message *msg_c = _msg.get();
+            PEP_STATUS status = ::check_message_signature(Adapter::session(), msg_c);
+            if (status == PEP_DECRYPT_SIGNATURE_DOES_NOT_MATCH)
+                throw runtime_error("signature mismatch");
+            _throw_status(status);
+        }
+
         Message Message::encrypt()
         {
             boost::python::list extra;

src/pEp/_pEp/message.hh

@@ -305,6 +305,8 @@ namespace pEp {
 
             void set_recv_by(Identity &new_recv_by);
 
+            void check_signature();
+
             Message encrypt();
 
             Message _encrypt(boost::python::list extra, int enc_format = 4, int flags = 0);

src/pEp/_pEp/pEpmodule.cc

@@ -559,6 +559,13 @@ namespace pEp {
                                           "field with the given own identity.\n"
                                           "\n"
                                           "   identity       an own identity, on which myself has been called already\n")
+                                     .def("check_signature", &Message::check_signature,
+                                          "msg.check_signature()\n"
+                                          "\n"
+                                          "Fail if the signature in the decrypted message does not match.  Do nothing on\n"
+                                          "success.\n"
+                                          "\n"
+                                          "   msg            a message, already decrypted, at least reliable\n")
                                      .def("encrypt", (Message(Message::*)()) & Message::encrypt)
                                      .def(
                                          "encrypt",