Add olm_session_describe

As a way to dump the state of an olm session, ie. the chain indicies,
so we can debug why olm sessions break and get out of sync.

1 files changed, 7 insertions, 0 deletions

diff --git a/javascript/olm_post.js b/javascript/olm_post.js
index ad058d9..c0498db 100644
--- a/javascript/olm_post.js
+++ b/javascript/olm_post.js
@@ -459,6 +459,13 @@ Session.prototype['decrypt'] = restore_stack(function(
 
 });
 
+Session.prototype['describe'] = restore_stack(function() {
+    var description_buf = session_method(Module['_olm_session_describe'])(
+        this.ptr
+    );
+    return UTF8ToString(description_buf);
+});
+
 function Utility() {
     var size = Module['_olm_utility_size']();
     this.buf = malloc(size);