Support for Sidekick device

.gitignore

@@ -8,12 +8,8 @@
 .DS_Store
 /app/build
 /app/release
-/app/alpha
-/app/prod
-/app/alphaMainnet
-/app/prodMainnet
-/app/alphaStagenet
-/app/prodStagenet
+/app/alpha*
+/app/prod*
 /app/.cxx
 /monerujo.id
 /external-libs/VERSION

app/build.gradle

@@ -7,9 +7,9 @@ android {
         buildToolsVersion = '34.0.0'
         compileSdk 34
         minSdkVersion 21
-        targetSdkVersion 33
-        versionCode 3311
-        versionName "3.3.11 'Argentina'"
+        targetSdkVersion 35
+        versionCode 4005
+        versionName "4.0.5 'Sidekick'"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {
@@ -24,7 +24,7 @@ android {
         }
     }
 
-    flavorDimensions 'type', 'net'
+    flavorDimensions = ['type', 'net']
     productFlavors {
         mainnet {
             dimension 'net'
@@ -132,18 +132,18 @@ static def getId(name) {
 }
 
 dependencies {
-    implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.0"))
+    implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.22"))
 
-    implementation 'androidx.core:core:1.12.0'
-    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'androidx.core:core:1.13.1'
+    implementation 'androidx.appcompat:appcompat:1.7.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'androidx.recyclerview:recyclerview:1.3.2'
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
     implementation 'androidx.preference:preference:1.2.1'
 
-    implementation 'com.google.android.material:material:1.11.0'
+    implementation 'com.google.android.material:material:1.12.0'
 
     implementation 'me.dm7.barcodescanner:zxing:1.9.8'
     implementation "com.squareup.okhttp3:okhttp:4.12.0"

app/src/main/AndroidManifest.xml

@@ -5,13 +5,19 @@
         android:name="android.hardware.camera"
         android:required="false" />
 
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
+    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.USE_FINGERPRINT" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.USE_BIOMETRIC" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_SPECIAL_USE" />
 
     <queries>
         <intent>
@@ -98,7 +104,12 @@
             android:name=".service.WalletService"
             android:description="@string/service_description"
             android:exported="false"
-            android:label="Monero Wallet Service" />
+            android:foregroundServiceType="specialUse"
+            android:label="Monero Wallet Service">
+            <property
+                android:name="android.app.PROPERTY_SPECIAL_USE_FGS_SUBTYPE"
+                android:value="Keeps app in sync with the blockchain" />
+        </service>
 
         <provider
             android:name="androidx.core.content.FileProvider"

app/src/main/cpp/monerujo.cpp

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2017 m2049r
+ * Copyright (c) 2017-2024 m2049r
  * <p>
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,8 +18,6 @@
 #include "monerujo.h"
 #include "wallet2_api.h"
 
-//TODO explicit casting jlong, jint, jboolean to avoid warnings
-
 #ifdef __cplusplus
 extern "C"
 {
@@ -34,25 +32,18 @@ extern "C"
 #define LOGE(...) __android_log_print(ANDROID_LOG_ERROR  , LOG_TAG,__VA_ARGS__)
 
 static JavaVM *cachedJVM;
-static jclass class_String;
 static jclass class_ArrayList;
 static jclass class_WalletListener;
 static jclass class_CoinsInfo;
 static jclass class_TransactionInfo;
 static jclass class_Transfer;
 static jclass class_Ledger;
 static jclass class_WalletStatus;
+static jclass class_BluetoothService;
+static jclass class_SidekickService;
 
 std::mutex _listenerMutex;
 
-//void jstringToString(JNIEnv *env, std::string &str, jstring jstr) {
-//    if (!jstr) return;
-//    const int len = env->GetStringUTFLength(jstr);
-//    const char *chars = env->GetStringUTFChars(jstr, nullptr);
-//    str.assign(chars, len);
-//    env->ReleaseStringUTFChars(jstr, chars);
-//}
-
 JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *jvm, void *reserved) {
     cachedJVM = jvm;
     LOGI("JNI_OnLoad");
@@ -62,8 +53,6 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *jvm, void *reserved) {
     }
     //LOGI("JNI_OnLoad ok");
 
-    class_String = static_cast<jclass>(jenv->NewGlobalRef(
-            jenv->FindClass("java/lang/String")));
     class_ArrayList = static_cast<jclass>(jenv->NewGlobalRef(
             jenv->FindClass("java/util/ArrayList")));
     class_CoinsInfo = static_cast<jclass>(jenv->NewGlobalRef(
@@ -78,6 +67,8 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *jvm, void *reserved) {
             jenv->FindClass("com/m2049r/xmrwallet/ledger/Ledger")));
     class_WalletStatus = static_cast<jclass>(jenv->NewGlobalRef(
             jenv->FindClass("com/m2049r/xmrwallet/model/Wallet$Status")));
+    class_BluetoothService = static_cast<jclass>(jenv->NewGlobalRef(
+            jenv->FindClass("com/m2049r/xmrwallet/service/BluetoothService")));
     return JNI_VERSION_1_6;
 }
 #ifdef __cplusplus
@@ -1686,6 +1677,79 @@ int LedgerFind(char *buffer, size_t len) {
     return ret;
 }
 
+//
+// SidekickWallet Stuff
+//
+
+/**
+ * @brief BtExchange     - exchange data with Monerujo Device
+ * @param request        - buffer for data to send
+ * @param request_len    - length of data to send
+ * @param response       - buffer for received data
+ * @param max_resp_len   - size of receive buffer
+ *
+ * @return length of received data in response or -1 if error, -2 if response buffer too small
+ */
+int BtExchange(
+        unsigned char *request,
+        unsigned int request_len,
+        unsigned char *response,
+        unsigned int max_resp_len) {
+    JNIEnv *jenv;
+    int envStat = attachJVM(&jenv);
+    if (envStat == JNI_ERR) return -16;
+
+    jmethodID exchangeMethod = jenv->GetStaticMethodID(class_BluetoothService, "Exchange",
+                                                       "([B)[B");
+
+    auto reqLen = static_cast<jsize>(request_len);
+    jbyteArray reqData = jenv->NewByteArray(reqLen);
+    jenv->SetByteArrayRegion(reqData, 0, reqLen, (jbyte *) request);
+    LOGD("BtExchange cmd: 0x%02x with %u bytes", request[0], reqLen);
+    auto dataRecv = (jbyteArray)
+            jenv->CallStaticObjectMethod(class_BluetoothService, exchangeMethod, reqData);
+    jenv->DeleteLocalRef(reqData);
+    if (dataRecv == nullptr) {
+        detachJVM(jenv, envStat);
+        LOGD("BtExchange: error reading");
+        return -1;
+    }
+    jsize respLen = jenv->GetArrayLength(dataRecv);
+    LOGD("BtExchange response is %u bytes", respLen);
+    if (respLen <= max_resp_len) {
+        jenv->GetByteArrayRegion(dataRecv, 0, respLen, (jbyte *) response);
+        jenv->DeleteLocalRef(dataRecv);
+        detachJVM(jenv, envStat);
+        return static_cast<int>(respLen);;
+    } else {
+        jenv->DeleteLocalRef(dataRecv);
+        detachJVM(jenv, envStat);
+        LOGE("BtExchange response buffer too small: %u < %u", respLen, max_resp_len);
+        return -2;
+    }
+}
+
+/**
+ * @brief ConfirmTransfers
+ * @param transfers - string of "fee (':' address ':' amount)+"
+ *
+ * @return true on accept, false on reject
+ */
+bool ConfirmTransfers(const char *transfers) {
+    JNIEnv *jenv;
+    int envStat = attachJVM(&jenv);
+    if (envStat == JNI_ERR) return -16;
+
+    jmethodID confirmMethod = jenv->GetStaticMethodID(class_SidekickService, "ConfirmTransfers",
+                                                      "(Ljava/lang/String;)Z");
+
+    jstring _transfers = jenv->NewStringUTF(transfers);
+    auto confirmed =
+            jenv->CallStaticBooleanMethod(class_SidekickService, confirmMethod, _transfers);
+    jenv->DeleteLocalRef(_transfers);
+    return confirmed;
+}
+
 #ifdef __cplusplus
 }
 #endif

app/src/main/cpp/monerujo.h

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2017 m2049r
+ * Copyright (c) 2017-2024 m2049r
  * <p>
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,8 @@
 
 #include <jni.h>
 
+#include <string>
+
 /*
 #include <android/log.h>
 
@@ -28,15 +30,27 @@
 #define  LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
 */
 
+void ThrowException(JNIEnv *jenv, const char* type, const char* msg) {
+    jenv->ThrowNew(jenv->FindClass(type), msg);
+}
+
 jfieldID getHandleField(JNIEnv *env, jobject obj, const char *fieldName = "handle") {
     jclass c = env->GetObjectClass(obj);
     return env->GetFieldID(c, fieldName, "J"); // of type long
 }
 
 template<typename T>
 T *getHandle(JNIEnv *env, jobject obj, const char *fieldName = "handle") {
+    return reinterpret_cast<T *>(env->GetLongField(obj, getHandleField(env, obj, fieldName)));
+}
+
+template<typename T>
+void destroyNativeObject(JNIEnv *env, T nativeObjectHandle, jobject obj, const char *fieldName = "handle") {
     jlong handle = env->GetLongField(obj, getHandleField(env, obj, fieldName));
-    return reinterpret_cast<T *>(handle);
+    if (handle != 0) {
+        ThrowException(env, "java/lang/IllegalStateException", "invalid handle (destroy)");
+    }
+    delete reinterpret_cast<T *>(nativeObjectHandle);
 }
 
 void setHandleFromLong(JNIEnv *env, jobject obj, jlong handle) {
@@ -54,26 +68,48 @@ extern "C"
 {
 #endif
 
-extern const char* const MONERO_VERSION; // the actual monero core version
+extern const char *const MONERO_VERSION; // the actual monero core version
 
 // from monero-core crypto/hash-ops.h - avoid #including monero code here
 enum {
     HASH_SIZE = 32,
     HASH_DATA_AREA = 136
 };
 
-void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int prehashed, uint64_t height);
+void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int prehashed,
+                  uint64_t height);
 
 inline void slow_hash(const void *data, const size_t length, char *hash) {
     cn_slow_hash(data, length, hash, 0 /*variant*/, 0 /*prehashed*/, 0 /*height*/);
 }
 
 inline void slow_hash_broken(const void *data, char *hash, int variant) {
-    cn_slow_hash(data, 200 /*sizeof(union hash_state)*/, hash, variant, 1 /*prehashed*/, 0 /*height*/);
+    cn_slow_hash(data, 200 /*sizeof(union hash_state)*/, hash, variant, 1 /*prehashed*/,
+                 0 /*height*/);
 }
-
 #ifdef __cplusplus
 }
 #endif
 
+namespace Monerujo {
+    class SidekickWallet {
+    public:
+        enum Status {
+            Status_Ok,
+            Status_Error,
+            Status_Critical
+        };
+
+        SidekickWallet(uint8_t networkType, std::string a, std::string b);
+
+        ~SidekickWallet();
+
+        std::string call(int commandId, const std::string &request);
+
+        void reset();
+
+        Status status() const;
+
+    };
+}
 #endif //XMRWALLET_WALLET_LIB_H