From 408530adf9ec0fd7aa8a201103262eebfc9cfc3e Mon Sep 17 00:00:00 2001
From: Mark Haines <mark.haines@matrix.org>
Date: Mon, 22 Jun 2015 11:02:42 +0100
Subject: Add API for removing used one time keys

---
 src/account.cpp | 15 +++++++++++++--
 src/axolotl.cpp | 14 ++++++++++++++
 2 files changed, 27 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/account.cpp b/src/account.cpp
index 02ad5ba..95bafa8 100644
--- a/src/account.cpp
+++ b/src/account.cpp
@@ -11,6 +11,18 @@ axolotl::LocalKey const * axolotl::Account::lookup_key(
     return 0;
 }
 
+std::size_t axolotl::Account::remove_key(
+    std::uint32_t id
+) {
+    LocalKey * i;
+    for (i = one_time_keys.begin(); i != one_time_keys.end(); ++i) {
+        if (i->id == id) {
+            one_time_keys.erase(i);
+            return id;
+        }
+    }
+    return std::size_t(-1);
+}
 
 std::size_t axolotl::Account::new_account_random_length() {
     return 103 * 32;
@@ -21,6 +33,7 @@ std::size_t axolotl::Account::new_account(
 ) {
     if (random_length < new_account_random_length()) {
         last_error = axolotl::ErrorCode::NOT_ENOUGH_RANDOM;
+        return std::size_t(-1);
     }
 
     unsigned id = 0;
@@ -46,8 +59,6 @@ std::size_t axolotl::Account::new_account(
 }
 
 
-
-
 namespace axolotl {
 
 
diff --git a/src/axolotl.cpp b/src/axolotl.cpp
index e835c9b..c195a7c 100644
--- a/src/axolotl.cpp
+++ b/src/axolotl.cpp
@@ -468,6 +468,20 @@ size_t axolotl_matches_inbound_session(
 }
 
 
+size_t axolotl_remove_one_time_keys(
+    AxolotlAccount * account,
+    AxolotlSession * session
+) {
+    size_t result = from_c(account)->remove_key(
+        from_c(session)->bob_one_time_key_id
+    );
+    if (result == std::size_t(-1)) {
+        from_c(account)->last_error = axolotl::ErrorCode::BAD_MESSAGE_KEY_ID;
+    }
+    return result;
+}
+
+
 size_t axolotl_encrypt_message_type(
     AxolotlSession * session
 ) {
-- 
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