[frontend] Generate web token at runtime (#3462)

Rather than having that hardcoded one like before. Also adds
infrastructure which should make it easier to setup defaults at runtime
(e.g. GPU stuff?)

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3462
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: Lizzie <lizzie@eden-emu.dev>

src/frontend_common/CMakeLists.txt

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 # SPDX-FileCopyrightText: 2023 yuzu Emulator Project
@@ -12,7 +12,8 @@ add_library(frontend_common STATIC
     firmware_manager.cpp
     data_manager.h data_manager.cpp
     play_time_manager.cpp
-    play_time_manager.h)
+    play_time_manager.h
+    settings_generator.h settings_generator.cpp)
 
 if (ENABLE_UPDATE_CHECKER)
     target_link_libraries(frontend_common PRIVATE httplib::httplib)
@@ -29,4 +30,6 @@ if (ENABLE_UPDATE_CHECKER)
 endif()
 
 create_target_directory_groups(frontend_common)
-target_link_libraries(frontend_common PUBLIC core SimpleIni::SimpleIni PRIVATE common Boost::headers)
+target_link_libraries(frontend_common
+    PUBLIC core SimpleIni::SimpleIni frozen::frozen-headers
+    PRIVATE common Boost::headers)

src/frontend_common/settings_generator.cpp

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <random>
+#include <frozen/string.h>
+#include "common/settings.h"
+#include "settings_generator.h"
+
+namespace FrontendCommon {
+
+void GenerateSettings() {
+    static std::random_device rd;
+
+    // Web Token //
+    auto &token_setting = Settings::values.eden_token;
+    if (token_setting.GetValue().empty()) {
+        static constexpr const size_t token_length = 48;
+        static constexpr const frozen::string token_set = "abcdefghijklmnopqrstuvwxyz";
+        static std::uniform_int_distribution<int> token_dist(0, token_set.size() - 1);
+        std::string result;
+
+        for (size_t i = 0; i < token_length; ++i) {
+            size_t idx = token_dist(rd);
+            result += token_set[idx];
+        }
+
+        token_setting.SetValue(result);
+    }
+}
+
+}

src/frontend_common/settings_generator.h

@@ -0,0 +1,14 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+namespace FrontendCommon {
+
+/**
+ * @brief GenerateSettings Generate platform-specific or randomized settings.
+ * Run this function at initialization time for your frontend.
+ */
+void GenerateSettings();
+
+}