Merge pull request #4491

16da754 build: prepare v0.18.4.2 (selsta)

.github/workflows/build.yml

@@ -99,7 +99,7 @@ jobs:
         path: build/bin/monero-wallet-gui.tar
 
   docker-linux-static:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v1
       with:
@@ -131,7 +131,7 @@ jobs:
           /home/runner/work/monero-gui/monero-gui/build/release/bin/monerod
 
   docker-windows-static:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v1
       with:
@@ -159,7 +159,7 @@ jobs:
           /home/runner/work/monero-gui/monero-gui/build/x86_64-w64-mingw32/release/bin/monerod.exe
 
   docker-android:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v1
       with:
@@ -185,7 +185,7 @@ jobs:
         path: /home/runner/work/monero-gui/monero-gui/build/Android/release/android-build/monero-gui.apk
 
   source-archive:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v1
       with:

CMakeLists.txt

@@ -5,7 +5,7 @@ message(STATUS "Initiating compile using CMake ${CMAKE_VERSION}")
 
 set(VERSION_MAJOR "18")
 set(VERSION_MINOR "4")
-set(VERSION_REVISION "0")
+set(VERSION_REVISION "2")
 set(VERSION "0.${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_REVISION}")
 
 option(STATIC "Link libraries statically, requires static Qt")
@@ -20,7 +20,7 @@ if(DEV_MODE)
   # DEV_MODE checks out the monero submodule to master, which requires C++17.
   set(CMAKE_CXX_STANDARD 17)
 else()
-  set(CMAKE_CXX_STANDARD 11)
+  set(CMAKE_CXX_STANDARD 14)
 endif()
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 

Dockerfile.android

@@ -1,4 +1,4 @@
-FROM debian:buster
+FROM ubuntu:20.04
 
 ARG THREADS=1
 ARG ANDROID_NDK_REVISION=23c
@@ -20,6 +20,7 @@ ENV JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
 ENV PATH=${JAVA_HOME}/bin:${PATH}
 ENV PREFIX=${WORKDIR}/prefix
 ENV TOOLCHAIN_DIR=${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/linux-x86_64
+ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update \
     && apt-get install -y ant automake build-essential ca-certificates-java file gettext git libc6 libncurses5 \

Dockerfile.windows

@@ -12,9 +12,9 @@ RUN apt update && \
 RUN update-alternatives --set x86_64-w64-mingw32-g++ $(which x86_64-w64-mingw32-g++-posix) && \
     update-alternatives --set x86_64-w64-mingw32-gcc $(which x86_64-w64-mingw32-gcc-posix)
 
-RUN git clone -b v0.18.4.0 --depth 1 https://github.com/monero-project/monero && \
+RUN git clone -b v0.18.4.2 --depth 1 https://github.com/monero-project/monero && \
     cd monero && \
-    git reset --hard f1311d4237404ab7da76241dbf10e92a65132cc4 && \
+    git reset --hard d87edf57fcc4bc2279ad9d8a1db093805e6becd7 && \
     cp -a contrib/depends / && \
     cd .. && \
     rm -rf monero

README.md

@@ -105,7 +105,7 @@ Packaging for your favorite distribution would be a welcome contribution!
    ```
    git clone --branch master --recursive https://github.com/monero-project/monero-gui.git
    ```
-   \* `master` - replace with the desired version tag (e.g. `v0.18.4.0`) to build the release binaries.
+   \* `master` - replace with the desired version tag (e.g. `v0.18.4.2`) to build the release binaries.
 3. Prepare build environment
    ```
    cd monero-gui
@@ -128,7 +128,7 @@ Packaging for your favorite distribution would be a welcome contribution!
    ```
    git clone --branch master --recursive https://github.com/monero-project/monero-gui.git
    ```
-   \* `master` - replace with the desired version tag (e.g. `v0.18.4.0`) to build the release binaries.
+   \* `master` - replace with the desired version tag (e.g. `v0.18.4.2`) to build the release binaries.
 3. Prepare build environment
    ```
    cd monero-gui

cmake/Deploy.cmake

@@ -96,11 +96,11 @@ if(APPLE OR (WIN32 AND NOT STATIC))
             libssl-3-x64.dll
             libcrypto-3-x64.dll
             #icu
-            libicudt76.dll
-            libicuin76.dll
-            libicuio76.dll
-            libicutu76.dll
-            libicuuc76.dll
+            libicudt77.dll
+            libicuin77.dll
+            libicuio77.dll
+            libicutu77.dll
+            libicuuc77.dll
         )
 
         # Boost Regex is header-only since 1.77

components/PasswordDialog.qml

@@ -50,6 +50,7 @@ Item {
     property bool passwordDialogMode
     property bool passphraseDialogMode
     property bool newPasswordDialogMode
+    property bool backgroundSyncing
 
     // same signals as Dialog has
     signal accepted()
@@ -77,10 +78,11 @@ Item {
         appWindow.updateBalance();
     }
 
-    function open(walletName, errorText, okButtonText, okButtonIcon) {
+    function open(walletName, errorText, okButtonText, okButtonIcon, backgroundSyncOn) {
         passwordDialogMode = true;
         passphraseDialogMode = false;
         newPasswordDialogMode = false;
+        backgroundSyncing = backgroundSyncOn || false;
         root.okButtonText = okButtonText;
         root.okButtonIcon = okButtonIcon ? okButtonIcon : "";
         _openInit(walletName, errorText);
@@ -90,6 +92,7 @@ Item {
         passwordDialogMode = false;
         passphraseDialogMode = true;
         newPasswordDialogMode = false;
+        backgroundSyncing = false;
         _openInit("", "");
     }
 
@@ -97,6 +100,7 @@ Item {
         passwordDialogMode = false;
         passphraseDialogMode = false;
         newPasswordDialogMode = true;
+        backgroundSyncing = false;
         _openInit("", "");
     }
 
@@ -204,7 +208,7 @@ Item {
                 font.family: MoneroComponents.Style.fontLight.name
                 Layout.fillWidth: true
                 wrapMode: Text.Wrap
-                text: qsTr("CAPSLOCKS IS ON.") + translationManager.emptyString;
+                text: qsTr("CAPS LOCK IS ON.") + translationManager.emptyString;
             }
 
             MoneroComponents.LineEdit {
@@ -300,6 +304,18 @@ Item {
                     onClicked: onOk()
                 }
             }
+
+            Label {
+                visible: backgroundSyncing
+                text: qsTr("Syncing in the background...") + translationManager.emptyString;
+                Layout.fillWidth: true
+
+                font.pixelSize: 14
+                font.family: MoneroComponents.Style.fontLight.name
+                font.italic: true
+
+                color: MoneroComponents.Style.defaultFontColor
+            }
         }
     }
 }

installers/windows/Deterministic.md

@@ -23,7 +23,7 @@ You would think timestamp preservation is no problem when unpacking the zip arch
 
 In any case, after unpacking, check the file dates in the `bin` directory where the installer script looks for them with the dates of the files in the zip file: They must be identical.
 
-Note that the the following line in `Monero.iss` is also important regarding file timestamps:
+Note that the following line in `Monero.iss` is also important regarding file timestamps:
 
     TimeStampsInUTC=yes
 

js/TxUtils.js

@@ -21,7 +21,6 @@ function addressTruncatePretty(address, blocks){
     if(typeof(address) === "undefined") return "";
     if(typeof(blocks) === "undefined") blocks = 2;
     blocks = blocks <= 1 ? 1 : blocks >= 23 ? 23 : blocks;
-    var ret = "";
     return address.substring(0, 4 * blocks).match(/.{1,4}/g).join(' ') + " .. " + address.substring(address.length - 4 * blocks).match(/.{1,4}/g).join(' ');
 }
 

lang/languages.xml

@@ -22,7 +22,7 @@ Lojban
         <!-- <language display_name="English (ZA)" locale="en_SA" wallet_language="English" flag="/lang/flags/za.png" qs="none"/> -->
         <!-- <language display_name="العربية (PS)" locale="ar_PS" wallet_language="English" flag="/lang/flags/ps.png" qs="none"/> -->
         <language display_name="Deutsch" locale="de_DE" wallet_language="Deutsch" flag="/lang/flags/de.png" qs="none"/>
-        <language display_name="Esperanto" locale="eo" wallet_language="Esperanto" flag="/lang/flags/esperanto.png" qs="none"/>
+        <language display_name="Esperanto" locale="eo_EO" wallet_language="Esperanto" flag="/lang/flags/eo.png" qs="none"/>
         <language display_name="Español" locale="es_ES" wallet_language="Español" flag="/lang/flags/es.png" qs="none"/>
         <language display_name="Français" locale="fr_FR" wallet_language="Français" flag="/lang/flags/fr.png" qs="none"/>
         <language display_name="Svenska" locale="sv_SE" wallet_language="English" flag="/lang/flags/se.png" qs="none"/>

main.qml

@@ -94,11 +94,12 @@ ApplicationWindow {
     readonly property string localDaemonAddress : "localhost:" + getDefaultDaemonRpcPort(persistentSettings.nettype)
     property string currentDaemonAddress;
     property int disconnectedEpoch: 0
-    property int estimatedBlockchainSize: persistentSettings.pruneBlockchain ? 55 : 150 // GB
+    property int estimatedBlockchainSize: persistentSettings.pruneBlockchain ? 100 : 225 // GB
     property alias viewState: rootItem.state
     property string prevSplashText;
     property bool splashDisplayedBeforeButtonRequest;
     property bool themeTransition: false
+    property int backgroundSyncType: Wallet.BackgroundSync_Off;
 
     // fiat price conversion
     property real fiatPrice: 0
@@ -133,6 +134,12 @@ ApplicationWindow {
     }
 
     function lock() {
+        if (currentWallet && currentWallet.getBackgroundSyncType() != Wallet.BackgroundSync_Off) {
+            appWindow.showProcessingSplash(qsTr("Locking..."));
+            currentWallet.startBackgroundSync()
+            return;
+        }
+
         passwordDialog.onRejectedCallback = function() { appWindow.showWizard(); }
         passwordDialog.onAcceptedCallback = function() {
             if(walletPassword === passwordDialog.password)
@@ -288,6 +295,9 @@ ApplicationWindow {
         currentWallet.heightRefreshed.disconnect(onHeightRefreshed);
         currentWallet.refreshed.disconnect(onWalletRefresh)
         currentWallet.updated.disconnect(onWalletUpdate)
+        currentWallet.backgroundSyncSetup.disconnect(onBackgroundSyncSetup)
+        currentWallet.backgroundSyncStarted.disconnect(onBackgroundSyncStarted)
+        currentWallet.backgroundSyncStopped.disconnect(onBackgroundSyncStopped)
         currentWallet.newBlock.disconnect(onWalletNewBlock)
         currentWallet.moneySpent.disconnect(onWalletMoneySent)
         currentWallet.moneyReceived.disconnect(onWalletMoneyReceived)
@@ -324,6 +334,7 @@ ApplicationWindow {
         walletName = usefulName(wallet.path)
 
         viewOnly = currentWallet.viewOnly;
+        backgroundSyncType = currentWallet.getBackgroundSyncType();
 
         // New wallets saves the testnet flag in keys file.
         if(persistentSettings.nettype != currentWallet.nettype) {
@@ -335,6 +346,9 @@ ApplicationWindow {
         currentWallet.heightRefreshed.connect(onHeightRefreshed);
         currentWallet.refreshed.connect(onWalletRefresh)
         currentWallet.updated.connect(onWalletUpdate)
+        currentWallet.backgroundSyncSetup.connect(onBackgroundSyncSetup)
+        currentWallet.backgroundSyncStarted.connect(onBackgroundSyncStarted)
+        currentWallet.backgroundSyncStopped.connect(onBackgroundSyncStopped)
         currentWallet.newBlock.connect(onWalletNewBlock)
         currentWallet.moneySpent.connect(onWalletMoneySent)
         currentWallet.moneyReceived.connect(onWalletMoneyReceived)
@@ -544,6 +558,15 @@ ApplicationWindow {
             }
         }
 
+        // Don't allow opening background wallets in the GUI
+        if (wallet.isBackgroundWallet()) {
+            passwordDialog.onCancel();
+            appWindow.showStatusMessage(qsTr("Can't open background wallets in the GUI"),6);
+            console.log("closing background wallet");
+            closeWallet();
+            return;
+        }
+
         // wallet opened successfully, subscribing for wallet updates
         connectWallet(wallet)
 
@@ -585,16 +608,17 @@ ApplicationWindow {
         devicePassphraseDialog.open(on_device)
     }
 
-    function onWalletUpdate() {
+    function onWalletUpdate(stoppedBackgroundSync) {
         if (!currentWallet)
             return;
 
         console.log(">>> wallet updated")
         updateBalance();
-        // Update history if new block found since last update
-        if(foundNewBlock) {
+        // Update history if new block found since last update or background sync was just stopped
+        if(foundNewBlock || stoppedBackgroundSync) {
+            if (foundNewBlock)
+                console.log("New block found - updating history")
             foundNewBlock = false;
-            console.log("New block found - updating history")
             currentWallet.history.refresh(currentWallet.currentSubaddressAccount)
 
             if(middlePanel.state == "History")
@@ -602,6 +626,61 @@ ApplicationWindow {
         }
     }
 
+    function onBackgroundSyncSetup() {
+        console.log(">>> background sync setup");
+        hideProcessingSplash();
+        if (currentWallet.status !== Wallet.Status_Ok) {
+            console.error("Error setting up background sync: ", currentWallet.errorString);
+            appWindow.showStatusMessage(currentWallet.errorString, 5);
+            return;
+        }
+        appWindow.backgroundSyncType = currentWallet.getBackgroundSyncType();
+    }
+
+    function onBackgroundSyncStarted() {
+        console.log(">>> background sync started");
+        hideProcessingSplash();
+        var started = currentWallet.status === Wallet.Status_Ok;
+        if (!started) {
+            console.error("Error starting background sync: ", currentWallet.errorString);
+            appWindow.showStatusMessage(currentWallet.errorString, 5);
+        }
+
+        passwordDialog.onRejectedCallback = function() { appWindow.showWizard(); }
+        passwordDialog.onAcceptedCallback = function() {
+            if(walletPassword === passwordDialog.password) {
+                if (currentWallet && started) {
+                    appWindow.showProcessingSplash(qsTr("Unlocking..."));
+                    currentWallet.stopBackgroundSync(walletPassword);
+                } else {
+                    passwordDialog.close();
+                }
+            } else {
+                passwordDialog.showError(qsTr("Wrong password") + translationManager.emptyString);
+            }
+        }
+        passwordDialog.open(usefulName(persistentSettings.wallet_path), "", "", "", started);
+    }
+
+    function onBackgroundSyncStopped() {
+        console.log(">>> background sync stopped");
+        var stopped = currentWallet.status === Wallet.Status_Ok;
+        if (!stopped) {
+            hideProcessingSplash();
+            console.error("Error stopping background sync: ", currentWallet.errorString);
+
+            // If there is an error stopping background sync, the spend key
+            // won't be loaded and the wallet will be in a broken state. Don't
+            // let the user continue normal wallet operations in this state.
+            passwordDialog.showError(qsTr("Error stopping background sync: ") + currentWallet.errorString);
+            return;
+        }
+
+        onWalletUpdate(stopped);
+        hideProcessingSplash();
+        passwordDialog.close();
+    }
+
     function connectRemoteNode() {
         console.log("connecting remote node");
 
@@ -2258,6 +2337,20 @@ ApplicationWindow {
         var inactivity = Utils.epoch() - appWindow.userLastActive;
         if(inactivity < (persistentSettings.lockOnUserInActivityInterval * 60)) return;
 
+        if (inputDialogVisible) inputDialog.close()
+        remoteNodeDialog.close();
+        informationPopup.close()
+        txConfirmationPopup.close()
+        txConfirmationPopup.clearFields()
+        txConfirmationPopup.rejected()
+        successfulTxPopup.close();
+
+        if (currentWallet && currentWallet.getBackgroundSyncType() != Wallet.BackgroundSync_Off) {
+            appWindow.showProcessingSplash(qsTr("Locking..."));
+            currentWallet.startBackgroundSync()
+            return;
+        }
+
         passwordDialog.onAcceptedCallback = function() {
             if(walletPassword === passwordDialog.password){
                 passwordDialog.close();
@@ -2270,13 +2363,6 @@ ApplicationWindow {
         }
 
         passwordDialog.onRejectedCallback = function() { appWindow.showWizard(); }
-        if (inputDialogVisible) inputDialog.close()
-        remoteNodeDialog.close();
-        informationPopup.close()
-        txConfirmationPopup.close()
-        txConfirmationPopup.clearFields()
-        txConfirmationPopup.rejected()
-        successfulTxPopup.close();
         passwordDialog.open();
     }
 

pages/History.qml

@@ -1447,7 +1447,6 @@ Rectangle {
         var txs = [];
         for (var i = 0; i < root.txData.length; i++){
             var item = root.txData[i];
-            var matched = "";
 
             // daterange filtering
             if(item.timestamp < fromDate || item.timestamp > toDate){
@@ -1543,6 +1542,7 @@ Rectangle {
     function updateTransactionsFromModel() {
         // This function copies the items of `appWindow.currentWallet.historyModel` to `root.txModelData`, as a list of javascript objects
         if(currentWallet == null || typeof currentWallet.history === "undefined" ) return;
+        if(currentWallet.isBackgroundSyncing()) return;
 
         var _model = root.model;
         var total = 0

pages/Mining.qml

@@ -384,6 +384,7 @@ Rectangle {
 
                 ListElement { column1: qsTr("Mini") ; column2: ""; priority: 0}
                 ListElement { column1: qsTr("Main") ; column2: ""; priority: 1}
+                ListElement { column1: qsTr("Nano") ; column2: ""; priority: 2}
             }
 
             ColumnLayout {
@@ -400,7 +401,7 @@ Rectangle {
 
                 MoneroComponents.Tooltip {
                     id: chainsHelpTooltip
-                    text: qsTr("Use the mini chain if you have a low hashrate.") + translationManager.emptyString
+                    text: qsTr("Use the mini or nano chains if you have a low hashrate.") + translationManager.emptyString
                 }
 
                 MouseArea {
@@ -448,26 +449,43 @@ Rectangle {
                     id: flagsHelpTooltip
                     text: "
                     Usage:<br>
-                        --wallet             Wallet address to mine to. Subaddresses and integrated addresses are not supported!<br>
-                        --host               IP address of your Monero node, default is 127.0.0.1<br>
-                        --rpc-port           monerod RPC API port number, default is 18081<br>
-                        --zmq-port           monerod ZMQ pub port number, default is 18083 (same port as in monerod\'s \"--zmq-pub\" command line parameter)<br>
-                        --stratum            Comma-separated list of IP:port for stratum server to listen on<br>
-                        --p2p                Comma-separated list of IP:port for p2p server to listen on<br>
-                        --addpeers           Comma-separated list of IP:port of other p2pool nodes to connect to<br>
-                        --light-mode         Don't allocate RandomX dataset, saves 2GB of RAM<br>
-                        --loglevel           Verbosity of the log, integer number between 0 and 6<br>
-                        --config             Name of the p2pool config file<br>
-                        --data-api           Path to the p2pool JSON data (use it in tandem with an external web-server)<br>
-                        --local-api          Enable /local/ path in api path for Stratum Server and built-in miner statistics<br>
-                        --stratum-api        An alias for --local-api<br>
-                        --no-cache           Disable p2pool.cache<br>
-                        --no-color           Disable colors in console output<br>
-                        --no-randomx         Disable internal RandomX hasher: p2pool will use RPC calls to monerod to check PoW hashes<br>
-                        --out-peers N        Maximum number of outgoing connections for p2p server (any value between 10 and 1000)<br>
-                        --in-peers N         Maximum number of incoming connections for p2p server (any value between 10 and 1000)<br>
-                        --start-mining N     Start built-in miner using N threads (any value between 1 and 64)<br>
-                        --help               Show this help message
+                        --wallet              Wallet address to mine to. Subaddresses and integrated addresses are not supported!<br>
+                        --host                IP address of your Monero node, default is 127.0.0.1<br>
+                        --rpc-port            monerod RPC API port number, default is 18081<br>
+                        --zmq-port            monerod ZMQ pub port number, default is 18083 (same port as in monerod\'s \"--zmq-pub\" command line parameter)<br>
+                        --stratum             Comma-separated list of IP:port for stratum server to listen on<br>
+                        --p2p                 Comma-separated list of IP:port for p2p server to listen on<br>
+                        --addpeers            Comma-separated list of IP:port of other p2pool nodes to connect to<br>
+                        --stratum-ban-time N  Number of seconds to ban misbehaving stratum client, default is 600<br>
+                        --light-mode          Don't allocate RandomX dataset, saves 2GB of RAM<br>
+                        --loglevel            Verbosity of the log, integer number between 0 and 6<br>
+                        --data-dir            Path to store general p2pool files (log, cache, peer data, etc.), default is current directory<br>
+                        --sidechain-config    Name of the p2pool sidechain parameters file (only use it if you run your own sidechain)<br>
+                        --data-api            Path to the p2pool JSON data (use it in tandem with an external web-server)<br>
+                        --local-api           Enable /local/ path in api path for Stratum Server and built-in miner statistics<br>
+                        --stratum-api         An alias for --local-api<br>
+                        --no-cache            Disable p2pool.cache<br>
+                        --no-color            Disable colors in console output<br>
+                        --no-randomx          Disable internal RandomX hasher: p2pool will use RPC calls to monerod to check PoW hashes<br>
+                        --out-peers N         Maximum number of outgoing connections for p2p server (any value between 10 and 1000)<br>
+                        --in-peers N          Maximum number of incoming connections for p2p server (any value between 10 and 1000)<br>
+                        --start-mining N      Start built-in miner using N threads (any value between 1 and 64)<br>
+                        --no-autodiff         Disable automatic difficulty adjustment for miners connected to stratum (WARNING: incompatible with Nicehash and MRR)<br>
+                        --rpc-login           Specify username[:password] required for Monero RPC server<br>
+                        --socks5              Specify IP:port of a SOCKS5 proxy to use for outgoing connections<br>
+                        --no-dns              Disable DNS queries, use only IP addresses to connect to peers (seed node DNS will be unavailable too)<br>
+                        --p2p-external-port   Port number that your router uses for mapping to your local p2p port. Use it if you are behind a NAT and still want to accept incoming connections<br>
+                        --no-upnp             Disable UPnP port forwarding<br>
+                        --no-igd              An alias for --no-upnp<br>
+                        --upnp-stratum        Port forward Stratum port (it's not forwarded by default)<br>
+                        --merge-mine          IP:port and wallet address for another blockchain to merge mine with<br>
+                        --version             Print p2pool's version and build details<br>
+                        --tls-cert file       Load TLS certificate chain from \"file\" in the PEM format<br>
+                        --tls-cert-key file   Load TLS certificate private key from \"file\" in the PEM format<br>
+                        --rpc-ssl             Enable SSL on RPC connections to the Monero node<br>
+                        --rpc-ssl-fingerprint base64-encoded fingerprint of the Monero node's certificate (optional, use it for certificate pinning)<br>
+                        --no-stratum-http     Disable HTTP on Stratum ports<br>
+                        --help                Show this help message
                     "
                 }
 
@@ -630,6 +648,9 @@ allArgs = allArgs.filter( ( el ) => !defaultArgs.includes( el.split(" ")[0] ) )
         if (chainDropdown.currentIndex === 1) {
             chain = "main"
         }
+        if (chainDropdown.currentIndex === 2) {
+            chain = "nano"
+        }
         var p2poolArgs = persistentSettings.p2poolFlags;
         var success = p2poolManager.start(p2poolArgs, address, chain, threads);
         if (success) 

pages/settings/SettingsLayout.qml

@@ -31,6 +31,8 @@ import QtQuick.Layouts 1.1
 import QtQuick.Controls 2.0
 import QtQuick.Dialogs 1.2
 
+import moneroComponents.Wallet 1.0
+
 import "../../js/Utils.js" as Utils
 import "../../js/Windows.js" as Windows
 import "../../components" as MoneroComponents
@@ -155,6 +157,28 @@ Rectangle {
             onMoved: persistentSettings.lockOnUserInActivityInterval = value
         }
 
+        MoneroComponents.CheckBox {
+            id: backgroundSyncCheckbox
+            visible: !!currentWallet && !currentWallet.isHwBacked() && !appWindow.viewOnly
+            checked: appWindow.backgroundSyncType != Wallet.BackgroundSync_Off
+            text: qsTr("Sync in the background when locked") + translationManager.emptyString
+            toggleOnClick: false
+            onClicked: {
+                if (currentWallet && appWindow) {
+                    appWindow.showProcessingSplash(qsTr("Updating settings..."))
+
+                    // TODO: add support for custom background password option
+                    var newBackgroundSyncType = Wallet.BackgroundSync_Off
+                    if (currentWallet.getBackgroundSyncType() === Wallet.BackgroundSync_Off)
+                        newBackgroundSyncType = Wallet.BackgroundSync_ReusePassword
+
+                    // TODO: don't keep the wallet password in memory on the appWindow
+                    // https://github.com/monero-project/monero-gui/issues/1537#issuecomment-410055329
+                    currentWallet.setupBackgroundSync(newBackgroundSyncType, appWindow.walletPassword)
+                }
+            }
+        }
+
         MoneroComponents.CheckBox {
             checked: persistentSettings.askStopLocalNode
             onClicked: persistentSettings.askStopLocalNode = !persistentSettings.askStopLocalNode

qml.qrc

@@ -64,7 +64,7 @@
         <file>lang/flags/cz.png</file>
         <file>lang/flags/dk.png</file>
         <file>lang/flags/eg.png</file>
-        <file>lang/flags/esperanto.png</file>
+        <file>lang/flags/eo.png</file>
         <file>lang/flags/fi.png</file>
         <file>lang/flags/fr.png</file>
         <file>lang/flags/de.png</file>

src/libwalletqt/Wallet.cpp

@@ -529,6 +529,69 @@ bool Wallet::scanTransactions(const QVector<QString> &txids)
     return m_walletImpl->scanTransactions(c);
 }
 
+void Wallet::setupBackgroundSync(const Wallet::BackgroundSyncType background_sync_type, const QString &wallet_password)
+{
+    qDebug() << "Setting up background sync";
+    bool refreshEnabled = m_refreshEnabled;
+    pauseRefresh();
+
+    // run inside scheduler because of lag when stopping/starting refresh
+    m_scheduler.run([this, refreshEnabled, background_sync_type, &wallet_password] {
+        m_walletImpl->setupBackgroundSync(
+            static_cast<Monero::Wallet::BackgroundSyncType>(background_sync_type),
+            wallet_password.toStdString(),
+            Monero::optional<std::string>());
+        if (refreshEnabled)
+            startRefresh();
+        emit backgroundSyncSetup();
+    });
+}
+
+Wallet::BackgroundSyncType Wallet::getBackgroundSyncType() const
+{
+    return static_cast<BackgroundSyncType>(m_walletImpl->getBackgroundSyncType());
+}
+
+bool Wallet::isBackgroundWallet() const
+{
+    return m_walletImpl->isBackgroundWallet();
+}
+
+bool Wallet::isBackgroundSyncing() const
+{
+    return m_walletImpl->isBackgroundSyncing();
+}
+
+void Wallet::startBackgroundSync()
+{
+    qDebug() << "Starting background sync";
+    bool refreshEnabled = m_refreshEnabled;
+    pauseRefresh();
+
+    // run inside scheduler because of lag when stopping/starting refresh
+    m_scheduler.run([this, refreshEnabled] {
+        m_walletImpl->startBackgroundSync();
+        if (refreshEnabled)
+            startRefresh();
+        emit backgroundSyncStarted();
+    });
+}
+
+void Wallet::stopBackgroundSync(const QString &password)
+{
+    qDebug() << "Stopping background sync";
+    bool refreshEnabled = m_refreshEnabled;
+    pauseRefresh();
+
+    // run inside scheduler because of lag when stopping/starting refresh
+    m_scheduler.run([this, password, refreshEnabled] {
+        m_walletImpl->stopBackgroundSync(password.toStdString());
+        if (refreshEnabled)
+            startRefresh();
+        emit backgroundSyncStopped();
+    });
+}
+
 bool Wallet::refresh(bool historyAndSubaddresses /* = true */)
 {
     refreshingSet(true);

src/libwalletqt/Wallet.h

@@ -112,6 +112,14 @@ public:
 
     Q_ENUM(ConnectionStatus)
 
+    enum BackgroundSyncType {
+        BackgroundSync_Off            = Monero::Wallet::BackgroundSync_Off,
+        BackgroundSync_ReusePassword  = Monero::Wallet::BackgroundSync_ReusePassword,
+        BackgroundSync_CustomPassword = Monero::Wallet::BackgroundSync_CustomPassword
+    };
+
+    Q_ENUM(BackgroundSyncType)
+
     //! returns mnemonic seed
     QString getSeed() const;
 
@@ -215,6 +223,17 @@ public:
     //! scan transactions
     Q_INVOKABLE bool scanTransactions(const QVector<QString> &txids);
 
+    Q_INVOKABLE void setupBackgroundSync(const BackgroundSyncType background_sync_type, const QString &wallet_password);
+    Q_INVOKABLE BackgroundSyncType getBackgroundSyncType() const;
+    Q_INVOKABLE bool isBackgroundWallet() const;
+    Q_INVOKABLE bool isBackgroundSyncing() const;
+
+    //! scan in the background with just the view key (wipe the spend key)
+    Q_INVOKABLE void startBackgroundSync();
+
+    //! bring the spend key back and process background synced txs
+    Q_INVOKABLE void stopBackgroundSync(const QString &password);
+
     //! refreshes the wallet
     Q_INVOKABLE bool refresh(bool historyAndSubaddresses = true);
 
@@ -369,6 +388,9 @@ signals:
     void moneyReceived(const QString &txId, quint64 amount);
     void unconfirmedMoneyReceived(const QString &txId, quint64 amount);
     void newBlock(quint64 height, quint64 targetHeight);
+    void backgroundSyncSetup() const;
+    void backgroundSyncStarted() const;
+    void backgroundSyncStopped() const;
     void addressBookChanged() const;
     void historyModelChanged() const;
     void walletCreationHeightChanged();

src/p2pool/P2PoolManager.cpp

@@ -53,21 +53,21 @@ void P2PoolManager::download() {
         QString fileName;
         QString validHash;
         #ifdef Q_OS_WIN
-            url = "https://github.com/SChernykh/p2pool/releases/download/v4.4/p2pool-v4.4-windows-x64.zip";
-            fileName = m_p2poolPath + "/p2pool-v4.4-windows-x64.zip";
-            validHash = "2f04ec3f4b28edf6f70bfc369b6ffba8d38af53d7a787d9ef5d630e5925e51de";
+            url = "https://github.com/SChernykh/p2pool/releases/download/v4.9.1/p2pool-v4.9.1-windows-x64.zip";
+            fileName = m_p2poolPath + "/p2pool-v4.9.1-windows-x64.zip";
+            validHash = "97a388ffb445f943db1130169f803cc1f8a4bcc29d35c2843d3dd82ae274faf6";
         #elif defined(Q_OS_LINUX)
-            url = "https://github.com/SChernykh/p2pool/releases/download/v4.4/p2pool-v4.4-linux-x64.tar.gz";
-            fileName = m_p2poolPath + "/p2pool-v4.4-linux-x64.tar.gz";
-            validHash = "a3495e19b2587a38ac9afdb73de8e2eadc90f21e2c348cb972a3ece678cad5f1";
+            url = "https://github.com/SChernykh/p2pool/releases/download/v4.9.1/p2pool-v4.9.1-linux-x64.tar.gz";
+            fileName = m_p2poolPath + "/p2pool-v4.9.1-linux-x64.tar.gz";
+            validHash = "4a5369b9e15504d9f4d8d1f8be834fd4cc590cbcea4a3bb9db2703f728f8b8cb";
         #elif defined(Q_OS_MACOS_AARCH64)
-            url = "https://github.com/SChernykh/p2pool/releases/download/v4.4/p2pool-v4.4-macos-aarch64.tar.gz";
-            fileName = m_p2poolPath + "/p2pool-v4.4-macos-aarch64.tar.gz";
-            validHash = "b8496fe1c5312fa3678e3d0e5ba0cfb7b498b1358dc7ed76a20a38574fef35d4";
+            url = "https://github.com/SChernykh/p2pool/releases/download/v4.9.1/p2pool-v4.9.1-macos-aarch64.tar.gz";
+            fileName = m_p2poolPath + "/p2pool-v4.9.1-macos-aarch64.tar.gz";
+            validHash = "20054d77a3e193035e84a011e3c6e864d2e7631a5e3c9e23e73cfe906bb01794";
         #elif defined(Q_OS_MACOS)
-            url = "https://github.com/SChernykh/p2pool/releases/download/v4.4/p2pool-v4.4-macos-x64.tar.gz";
-            fileName = m_p2poolPath + "/p2pool-v4.4-macos-x64.tar.gz";
-            validHash = "8ab40faf7d1032835a3b3319b193ad2e14901e0b01e1e802c6b8333c8b75dfad";
+            url = "https://github.com/SChernykh/p2pool/releases/download/v4.9.1/p2pool-v4.9.1-macos-x64.tar.gz";
+            fileName = m_p2poolPath + "/p2pool-v4.9.1-macos-x64.tar.gz";
+            validHash = "769989d0d299ae6dac513e14eda3269f88ad66e1f73e781a3ad0b2299863db4f";
         #endif
         QFile file(fileName);
         epee::net_utils::http::http_simple_client http_client;
@@ -182,6 +182,10 @@ bool P2PoolManager::start(const QString &flags, const QString &address, const QS
         arguments << "--start-mining" << threads;
     }
 
+    if (chain == "nano") {
+        arguments << "--nano";
+    }
+
     if (chain == "mini") {
         arguments << "--mini";
     }

wizard/WizardAskPassword.qml

@@ -47,7 +47,7 @@ ColumnLayout {
         return passwordInput.text === passwordInputConfirm.text;
     }
 
-    function calcPasswordStrength(inp) {
+    function calcPasswordStrength() {
         if(!progressLayout.visible) return;
         if(passwordInput.text.length <= 1){
             root.passwordFill = 0;

wizard/WizardCreateWallet2.qml

@@ -86,7 +86,7 @@ Rectangle {
         visible: false
         text: qsTr("Print this paper, fill it out, and keep it in a safe location. Never share your recovery phrase with anybody, especially with strangers offering technical support.") +
               qsTr("Recovery phrase (mnemonic seed)") +
-              qsTr("These words are are a backup of your wallet. They are the only thing needed to access your funds and restore your Monero wallet, so keep this paper in a safe place and do not disclose it to anybody! It is strongly not recommended to store your recovery phrase digitally (in an email, online service, screenshot, photo, or any other type of computer file).") +
+              qsTr("These words are a backup of your wallet. They are the only thing needed to access your funds and restore your Monero wallet, so keep this paper in a safe place and do not disclose it to anybody! It is strongly not recommended to store your recovery phrase digitally (in an email, online service, screenshot, photo, or any other type of computer file).") +
               qsTr("Wallet creation date") +
               qsTr("Wallet restore height") +
               qsTr("For instructions on how to restore this wallet, visit www.getmonero.org and go to Resources > User Guides > \"How to restore a wallet from mnemonic seed\". Use only Monero wallets that are trusted and recommended by the Monero community (see a list of them in www.getmonero.org/downloads).") + translationManager.emptyString

wizard/WizardRestoreWallet1.qml

@@ -46,7 +46,6 @@ Rectangle {
             return false;
         }
 
-        var valid = false;
         if(wizardController.walletRestoreMode === "keys") {
             return wizardWalletInput.verify() && wizardRestoreWallet1.verifyFromKeys();
         } else if(wizardController.walletRestoreMode === "seed") {