Added provider metadata

Author: SessionHero01

library/src/androidTest/kotlin/network/loki/messenger/libsession_util/protocol/BackendRequestsTest.kt

@@ -0,0 +1,17 @@
+package network.loki.messenger.libsession_util.protocol
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import network.loki.messenger.libsession_util.pro.BackendRequests
+import org.junit.Assert.assertNotNull
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class BackendRequestsTest {
+
+    @Test
+    fun getProviderMetadataWorks() {
+        val metadata = BackendRequests.getPaymentProviderMetadata(BackendRequests.PAYMENT_PROVIDER_GOOGLE_PLAY)
+        assertNotNull(metadata)
+    }
+}

library/src/main/cpp/pro_backend.cpp

@@ -61,4 +61,31 @@ Java_network_loki_messenger_libsession_1util_pro_BackendRequests_buildGetProDeta
 
         return util::jstringFromOptional(env, json);
     });
+}
+
+extern "C"
+JNIEXPORT jobject JNICALL
+Java_network_loki_messenger_libsession_1util_pro_BackendRequests_getPaymentProviderMetadata(
+        JNIEnv *env, jobject thiz, jint payment_provider) {
+    return run_catching_cxx_exception_or_throws<jobject>(env, [=]() -> jobject {
+        if (payment_provider >= SESSION_PRO_BACKEND_PAYMENT_PROVIDER_COUNT || payment_provider < 0) {
+            return nullptr;
+        }
+
+        const auto & metadata = SESSION_PRO_BACKEND_PAYMENT_PROVIDER_METADATA[payment_provider];
+        auto clazz = env->FindClass("network/loki/messenger/libsession_util/protocol/PaymentProviderMetadata");
+        return env->NewObject(
+                clazz,
+                env->GetMethodID(clazz, "<init>", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"),
+                util::jstringFromOptional(env, std::string_view(metadata.device.data, metadata.device.size)),
+                util::jstringFromOptional(env, std::string_view(metadata.store.data, metadata.store.size)),
+                util::jstringFromOptional(env, std::string_view(metadata.platform.data, metadata.platform.size)),
+                util::jstringFromOptional(env, std::string_view(metadata.platform_account.data, metadata.platform_account.size)),
+                util::jstringFromOptional(env, std::string_view(metadata.refund_url.data, metadata.refund_url.size)),
+                util::jstringFromOptional(env, std::string_view(metadata.refund_after_platform_deadline_url.data, metadata.refund_after_platform_deadline_url.size)),
+                util::jstringFromOptional(env, std::string_view(metadata.refund_support_url.data, metadata.refund_support_url.size)),
+                util::jstringFromOptional(env, std::string_view(metadata.update_subscription_url.data, metadata.update_subscription_url.size)),
+                util::jstringFromOptional(env, std::string_view(metadata.cancel_subscription_url.data, metadata.cancel_subscription_url.size))
+            );
+    });
 }

library/src/main/java/network/loki/messenger/libsession_util/pro/BackendRequests.kt

@@ -1,6 +1,7 @@
 package network.loki.messenger.libsession_util.pro
 
 import network.loki.messenger.libsession_util.LibSessionUtilCApi
+import network.loki.messenger.libsession_util.protocol.PaymentProviderMetadata
 
 typealias PaymentProvider = Int
 
@@ -30,4 +31,6 @@ object BackendRequests : LibSessionUtilCApi() {
         nowMs: Long,
         count: Int,
     ): String
+
+    external fun getPaymentProviderMetadata(paymentProvider: PaymentProvider): PaymentProviderMetadata?
 }

library/src/main/java/network/loki/messenger/libsession_util/protocol/PaymentProviderMetadata.kt

@@ -0,0 +1,15 @@
+package network.loki.messenger.libsession_util.protocol
+
+import androidx.annotation.Keep
+
+data class PaymentProviderMetadata @Keep constructor(
+    val device: String,
+    val store: String,
+    val platform: String,
+    val platformAccount: String,
+    val refundUrl: String,
+    val refundAfterPlatformDeadlineUrl: String,
+    val refundSupportUrl: String,
+    val updateSubscriptionUrl: String,
+    val cancelSubscriptionUrl: String,
+)

library/src/main/java/network/loki/messenger/libsession_util/protocol/SessionProtocol.kt

@@ -1,6 +1,7 @@
 package network.loki.messenger.libsession_util.protocol
 
 import network.loki.messenger.libsession_util.LibSessionUtilCApi
+import network.loki.messenger.libsession_util.pro.PaymentProvider
 
 object SessionProtocol : LibSessionUtilCApi() {
     external fun encodeFor1o1(