Merge pull request #53 from Pearl-Browser/backup-wallet-bindings

Add bindings to backup & restore wallet

bindings/c-ffi/src/lib.rs

@@ -54,6 +54,20 @@ pub extern "C" fn free_wallet(obj: COpaqueStruct) {
     }
 }
 
+#[no_mangle]
+pub extern "C" fn rgblib_backup(
+    wallet: &COpaqueStruct,
+    backup_path: *const c_char,
+    password: *const c_char,
+) -> CResult {
+    backup(wallet, backup_path, password).into()
+}
+
+#[no_mangle]
+pub extern "C" fn rgblib_backup_info(wallet: &COpaqueStruct) -> CResultString {
+    backup_info(wallet).into()
+}
+
 #[no_mangle]
 pub extern "C" fn rgblib_blind_receive(
     wallet: &COpaqueStruct,
@@ -244,6 +258,15 @@ pub extern "C" fn rgblib_refresh(
     refresh(wallet, online, asset_id_opt, filter, skip_sync).into()
 }
 
+#[no_mangle]
+pub extern "C" fn rgblib_restore_backup(
+    backup_path: *const c_char,
+    password: *const c_char,
+    target_dir: *const c_char,
+) -> CResult {
+    restore_backup(backup_path, password, target_dir).into()
+}
+
 #[no_mangle]
 pub extern "C" fn rgblib_restore_keys(
     bitcoin_network: *const c_char,

bindings/c-ffi/src/utils.rs

@@ -166,6 +166,24 @@ fn string_to_ptr(other: String) -> *mut c_char {
     cstr.into_raw()
 }
 
+pub(crate) fn backup(
+    wallet: &COpaqueStruct,
+    backup_path: *const c_char,
+    password: *const c_char,
+) -> Result<(), Error> {
+    let wallet = Wallet::from_opaque(wallet)?;
+    let backup_path = ptr_to_string(backup_path);
+    let password = ptr_to_string(password);
+    wallet.backup(&backup_path, &password)?;
+    Ok(())
+}
+
+pub(crate) fn backup_info(wallet: &COpaqueStruct) -> Result<String, Error> {
+    let wallet = Wallet::from_opaque(wallet)?;
+    let res = wallet.backup_info()?;
+    Ok(serde_json::to_string(&res)?)
+}
+
 pub(crate) fn blind_receive(
     wallet: &COpaqueStruct,
     asset_id_opt: *const c_char,
@@ -404,6 +422,18 @@ pub(crate) fn refresh(
     Ok(serde_json::to_string(&res)?)
 }
 
+pub(crate) fn restore_backup(
+    backup_path: *const c_char,
+    password: *const c_char,
+    target_dir: *const c_char,
+) -> Result<(), Error> {
+    let backup_path = ptr_to_string(backup_path);
+    let password = ptr_to_string(password);
+    let target_dir = ptr_to_string(target_dir);
+    rgb_lib::restore_backup(&backup_path, &password, &target_dir)?;
+    Ok(())
+}
+
 pub(crate) fn restore_keys(
     bitcoin_network: *const c_char,
     mnemonic: *const c_char,