add support for fallback keys

2 files changed, 24 insertions, 1 deletions

diff --git a/javascript/index.d.ts b/javascript/index.d.ts
index a0107ac..9d101a8 100644
--- a/javascript/index.d.ts
+++ b/javascript/index.d.ts
@@ -27,6 +27,8 @@ declare class Account {
     max_number_of_one_time_keys(): number;
     generate_one_time_keys(number_of_keys: number);
     remove_one_time_keys(session: Session);
+    generate_fallback_key();
+    fallback_key(): string;
     pickle(key: string): string;
     unpickle(key: string, pickle: string);
 }
diff --git a/javascript/olm_post.js b/javascript/olm_post.js
index e204f30..aed4b69 100644
--- a/javascript/olm_post.js
+++ b/javascript/olm_post.js
@@ -141,11 +141,32 @@ Account.prototype['generate_one_time_keys'] = restore_stack(function(
 });
 
 Account.prototype['remove_one_time_keys'] = restore_stack(function(session) {
-     account_method(Module['_olm_remove_one_time_keys'])(
+    account_method(Module['_olm_remove_one_time_keys'])(
         this.ptr, session.ptr
     );
 });
 
+Account.prototype['generate_fallback_key'] = restore_stack(function() {
+    var random_length = account_method(
+        Module['_olm_account_generate_fallback_key_random_length']
+    )(this.ptr);
+    var random = random_stack(random_length);
+    account_method(Module['_olm_account_generate_fallback_key'])(
+        this.ptr, random, random_length
+    );
+});
+
+Account.prototype['fallback_key'] = restore_stack(function() {
+    var keys_length = account_method(
+        Module['_olm_account_fallback_key_length']
+    )(this.ptr);
+    var keys = stack(keys_length + NULL_BYTE_PADDING_LENGTH);
+    account_method(Module['_olm_account_fallback_key'])(
+        this.ptr, keys, keys_length
+    );
+    return UTF8ToString(keys, keys_length);
+});
+
 Account.prototype['pickle'] = restore_stack(function(key) {
     var key_array = array_from_string(key);
     var pickle_length = account_method(