From 9d7eebde7b06f3a921707dfb7ebdee22ab9d257e Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Wed, 13 Sep 2023 22:06:33 -0400
Subject: ngc: implement service

---
 src/core/hle/service/ngc/ngc.cpp | 150 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 src/core/hle/service/ngc/ngc.cpp

(limited to 'src/core/hle/service/ngc/ngc.cpp')

diff --git a/src/core/hle/service/ngc/ngc.cpp b/src/core/hle/service/ngc/ngc.cpp
new file mode 100644
index 000000000..c26019ec0
--- /dev/null
+++ b/src/core/hle/service/ngc/ngc.cpp
@@ -0,0 +1,150 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/string_util.h"
+#include "core/core.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/ngc/ngc.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Service::NGC {
+
+class NgctServiceImpl final : public ServiceFramework<NgctServiceImpl> {
+public:
+    explicit NgctServiceImpl(Core::System& system_) : ServiceFramework{system_, "ngct:u"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &NgctServiceImpl::Match, "Match"},
+            {1, &NgctServiceImpl::Filter, "Filter"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void Match(HLERequestContext& ctx) {
+        const auto buffer = ctx.ReadBuffer();
+        const auto text = Common::StringFromFixedZeroTerminatedBuffer(
+            reinterpret_cast<const char*>(buffer.data()), buffer.size());
+
+        LOG_WARNING(Service_NGC, "(STUBBED) called, text={}", text);
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(ResultSuccess);
+        // Return false since we don't censor anything
+        rb.Push(false);
+    }
+
+    void Filter(HLERequestContext& ctx) {
+        const auto buffer = ctx.ReadBuffer();
+        const auto text = Common::StringFromFixedZeroTerminatedBuffer(
+            reinterpret_cast<const char*>(buffer.data()), buffer.size());
+
+        LOG_WARNING(Service_NGC, "(STUBBED) called, text={}", text);
+
+        // Return the same string since we don't censor anything
+        ctx.WriteBuffer(buffer);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultSuccess);
+    }
+};
+
+class NgcServiceImpl final : public ServiceFramework<NgcServiceImpl> {
+public:
+    explicit NgcServiceImpl(Core::System& system_) : ServiceFramework(system_, "ngc:u") {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &NgcServiceImpl::GetContentVersion, "GetContentVersion"},
+            {1, &NgcServiceImpl::Check, "Check"},
+            {2, &NgcServiceImpl::Mask, "Mask"},
+            {3, &NgcServiceImpl::Reload, "Reload"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    static constexpr u32 NgcContentVersion = 1;
+
+    // This is nn::ngc::detail::ProfanityFilterOption
+    struct ProfanityFilterOption {
+        INSERT_PADDING_BYTES_NOINIT(0x20);
+    };
+    static_assert(sizeof(ProfanityFilterOption) == 0x20,
+                  "ProfanityFilterOption has incorrect size");
+
+    void GetContentVersion(HLERequestContext& ctx) {
+        LOG_INFO(Service_NGC, "(STUBBED) called");
+
+        // This calls nn::ngc::ProfanityFilter::GetContentVersion
+        const u32 version = NgcContentVersion;
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(ResultSuccess);
+        rb.Push(version);
+    }
+
+    void Check(HLERequestContext& ctx) {
+        LOG_INFO(Service_NGC, "(STUBBED) called");
+
+        struct InputParameters {
+            u32 flags;
+            ProfanityFilterOption option;
+        };
+
+        IPC::RequestParser rp{ctx};
+        [[maybe_unused]] const auto params = rp.PopRaw<InputParameters>();
+        [[maybe_unused]] const auto input = ctx.ReadBuffer(0);
+
+        // This calls nn::ngc::ProfanityFilter::CheckProfanityWords
+        const u32 out_flags = 0;
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(ResultSuccess);
+        rb.Push(out_flags);
+    }
+
+    void Mask(HLERequestContext& ctx) {
+        LOG_INFO(Service_NGC, "(STUBBED) called");
+
+        struct InputParameters {
+            u32 flags;
+            ProfanityFilterOption option;
+        };
+
+        IPC::RequestParser rp{ctx};
+        [[maybe_unused]] const auto params = rp.PopRaw<InputParameters>();
+        const auto input = ctx.ReadBuffer(0);
+
+        // This calls nn::ngc::ProfanityFilter::MaskProfanityWordsInText
+        const u32 out_flags = 0;
+        ctx.WriteBuffer(input);
+
+        IPC::ResponseBuilder rb{ctx, 3};
+        rb.Push(ResultSuccess);
+        rb.Push(out_flags);
+    }
+
+    void Reload(HLERequestContext& ctx) {
+        LOG_INFO(Service_NGC, "(STUBBED) called");
+
+        // This reloads the database.
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultSuccess);
+    }
+};
+
+void LoopProcess(Core::System& system) {
+    auto server_manager = std::make_unique<ServerManager>(system);
+
+    server_manager->RegisterNamedService("ngct:u", std::make_shared<NgctServiceImpl>(system));
+    server_manager->RegisterNamedService("ngc:u", std::make_shared<NgcServiceImpl>(system));
+    ServerManager::RunServer(std::move(server_manager));
+}
+
+} // namespace Service::NGC
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