wallet-rpc: restore from multisig seed

1 files changed, 30 insertions, 3 deletions

diff --git a/src/wallet/wallet_rpc_server.cpp b/src/wallet/wallet_rpc_server.cpp
index 32628d65b..078535928 100644
--- a/src/wallet/wallet_rpc_server.cpp
+++ b/src/wallet/wallet_rpc_server.cpp
@@ -3806,7 +3806,7 @@ namespace tools
     std::string old_language;
 
     // check the given seed
-    {
+    if (!req.enable_multisig_experimental) {
       if (!crypto::ElectrumWords::words_to_bytes(req.seed, recovery_key, old_language))
       {
         er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
@@ -3829,6 +3829,13 @@ namespace tools
 
     // process seed_offset if given
     {
+      if (req.enable_multisig_experimental && !req.seed_offset.empty())
+      {
+        er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
+        er.message = "Multisig seeds are not compatible with seed offsets";
+        return false;
+      }
+
       if (!req.seed_offset.empty())
       {
         recovery_key = cryptonote::decrypt_key(recovery_key, req.seed_offset);
@@ -3892,7 +3899,27 @@ namespace tools
     crypto::secret_key recovery_val;
     try
     {
-      recovery_val = wal->generate(wallet_file, std::move(rc.second).password(), recovery_key, true, false, false);
+      if (req.enable_multisig_experimental)
+      {
+        // Parse multisig seed into raw multisig data
+        epee::wipeable_string multisig_data;
+        multisig_data.resize(req.seed.size() / 2);
+        if (!epee::from_hex::to_buffer(epee::to_mut_byte_span(multisig_data), req.seed))
+        {
+          er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
+          er.message = "Multisig seed not represented as hexadecimal string";
+          return false;
+        }
+
+        // Generate multisig wallet
+        wal->generate(wallet_file, std::move(rc.second).password(), multisig_data, false);
+        wal->enable_multisig(true);
+      }
+      else
+      {
+        // Generate normal wallet
+        recovery_val = wal->generate(wallet_file, std::move(rc.second).password(), recovery_key, true, false, false);
+      }
       MINFO("Wallet has been restored.\n");
     }
     catch (const std::exception &e)
@@ -3903,7 +3930,7 @@ namespace tools
 
     // // Convert the secret key back to seed
     epee::wipeable_string electrum_words;
-    if (!crypto::ElectrumWords::bytes_to_words(recovery_val, electrum_words, mnemonic_language))
+    if (!req.enable_multisig_experimental && !crypto::ElectrumWords::bytes_to_words(recovery_val, electrum_words, mnemonic_language))
     {
       er.code = WALLET_RPC_ERROR_CODE_UNKNOWN_ERROR;
       er.message = "Failed to encode seed";