10 files changed, 335 insertions, 127 deletions

diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/NativeLibrary.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/NativeLibrary.kt
index 1c9fb0675..c408485c6 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/NativeLibrary.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/NativeLibrary.kt
@@ -23,6 +23,7 @@ import org.yuzu.yuzu_emu.utils.Log
 import org.yuzu.yuzu_emu.utils.SerializableHelper.serializable
 import org.yuzu.yuzu_emu.model.InstallResult
 import org.yuzu.yuzu_emu.model.Patch
+import org.yuzu.yuzu_emu.model.GameVerificationResult
 
 /**
  * Class which contains methods that interact
@@ -565,6 +566,26 @@ object NativeLibrary {
     external fun removeMod(programId: String, name: String)
 
     /**
+     * Verifies all installed content
+     * @param callback UI callback for verification progress. Return true in the callback to cancel.
+     * @return Array of content that failed verification. Successful if empty.
+     */
+    external fun verifyInstalledContents(
+        callback: (max: Long, progress: Long) -> Boolean
+    ): Array<String>
+
+    /**
+     * Verifies the contents of a game
+     * @param path String path to a game
+     * @param callback UI callback for verification progress. Return true in the callback to cancel.
+     * @return Int that is meant to be converted to a [GameVerificationResult]
+     */
+    external fun verifyGameContents(
+        path: String,
+        callback: (max: Long, progress: Long) -> Boolean
+    ): Int
+
+    /**
      * Gets the save location for a specific game
      *
      * @param programId String representation of a game's program ID
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/GameInfoFragment.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/GameInfoFragment.kt
index fa2a4c9f9..5aa3f453f 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/GameInfoFragment.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/GameInfoFragment.kt
@@ -21,8 +21,10 @@ import androidx.fragment.app.activityViewModels
 import androidx.navigation.findNavController
 import androidx.navigation.fragment.navArgs
 import com.google.android.material.transition.MaterialSharedAxis
+import org.yuzu.yuzu_emu.NativeLibrary
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.databinding.FragmentGameInfoBinding
+import org.yuzu.yuzu_emu.model.GameVerificationResult
 import org.yuzu.yuzu_emu.model.HomeViewModel
 import org.yuzu.yuzu_emu.utils.GameMetadata
 
@@ -101,6 +103,38 @@ class GameInfoFragment : Fragment() {
                 """.trimIndent()
                 copyToClipboard(args.game.title, details)
             }
+
+            buttonVerifyIntegrity.setOnClickListener {
+                ProgressDialogFragment.newInstance(
+                    requireActivity(),
+                    R.string.verifying,
+                    true
+                ) { progressCallback, _ ->
+                    val result = GameVerificationResult.from(
+                        NativeLibrary.verifyGameContents(
+                            args.game.path,
+                            progressCallback
+                        )
+                    )
+                    return@newInstance when (result) {
+                        GameVerificationResult.Success ->
+                            MessageDialogFragment.newInstance(
+                                titleId = R.string.verify_success,
+                                descriptionId = R.string.operation_completed_successfully
+                            )
+                        GameVerificationResult.Failed ->
+                            MessageDialogFragment.newInstance(
+                                titleId = R.string.verify_failure,
+                                descriptionId = R.string.verify_failure_description
+                            )
+                        GameVerificationResult.NotImplemented ->
+                            MessageDialogFragment.newInstance(
+                                titleId = R.string.verify_no_result,
+                                descriptionId = R.string.verify_no_result_description
+                            )
+                    }
+                }.show(parentFragmentManager, ProgressDialogFragment.TAG)
+            }
         }
 
         setInsets()
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/HomeSettingsFragment.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/HomeSettingsFragment.kt
index 6ddd758e6..aefae2938 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/HomeSettingsFragment.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/HomeSettingsFragment.kt
@@ -32,6 +32,7 @@ import org.yuzu.yuzu_emu.BuildConfig
 import org.yuzu.yuzu_emu.HomeNavigationDirections
 import org.yuzu.yuzu_emu.NativeLibrary
 import org.yuzu.yuzu_emu.R
+import org.yuzu.yuzu_emu.YuzuApplication
 import org.yuzu.yuzu_emu.adapters.HomeSettingAdapter
 import org.yuzu.yuzu_emu.databinding.FragmentHomeSettingsBinding
 import org.yuzu.yuzu_emu.features.DocumentProvider
@@ -142,6 +143,38 @@ class HomeSettingsFragment : Fragment() {
             )
             add(
                 HomeSetting(
+                    R.string.verify_installed_content,
+                    R.string.verify_installed_content_description,
+                    R.drawable.ic_check_circle,
+                    {
+                        ProgressDialogFragment.newInstance(
+                            requireActivity(),
+                            titleId = R.string.verifying,
+                            cancellable = true
+                        ) { progressCallback, _ ->
+                            val result = NativeLibrary.verifyInstalledContents(progressCallback)
+                            return@newInstance if (result.isEmpty()) {
+                                MessageDialogFragment.newInstance(
+                                    titleId = R.string.verify_success,
+                                    descriptionId = R.string.operation_completed_successfully
+                                )
+                            } else {
+                                val failedNames = result.joinToString("\n")
+                                val errorMessage = YuzuApplication.appContext.getString(
+                                    R.string.verification_failed_for,
+                                    failedNames
+                                )
+                                MessageDialogFragment.newInstance(
+                                    titleId = R.string.verify_failure,
+                                    descriptionString = errorMessage
+                                )
+                            }
+                        }.show(parentFragmentManager, ProgressDialogFragment.TAG)
+                    }
+                )
+            )
+            add(
+                HomeSetting(
                     R.string.share_log,
                     R.string.share_log_description,
                     R.drawable.ic_log,
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/MessageDialogFragment.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/MessageDialogFragment.kt
index 32062b6fe..620d8db7c 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/MessageDialogFragment.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/MessageDialogFragment.kt
@@ -69,7 +69,7 @@ class MessageDialogFragment : DialogFragment() {
         private const val HELP_LINK = "Link"
 
         fun newInstance(
-            activity: FragmentActivity,
+            activity: FragmentActivity? = null,
             titleId: Int = 0,
             titleString: String = "",
             descriptionId: Int = 0,
@@ -86,9 +86,11 @@ class MessageDialogFragment : DialogFragment() {
                 putString(DESCRIPTION_STRING, descriptionString)
                 putInt(HELP_LINK, helpLinkId)
             }
-            ViewModelProvider(activity)[MessageDialogViewModel::class.java].apply {
-                clear()
-                this.positiveAction = positiveAction
+            if (activity != null) {
+                ViewModelProvider(activity)[MessageDialogViewModel::class.java].apply {
+                    clear()
+                    this.positiveAction = positiveAction
+                }
             }
             dialog.arguments = bundle
             return dialog
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/model/GameVerificationResult.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/model/GameVerificationResult.kt
new file mode 100644
index 000000000..804637fb8
--- /dev/null
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/model/GameVerificationResult.kt
@@ -0,0 +1,15 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.model
+
+enum class GameVerificationResult(val int: Int) {
+    Success(0),
+    Failed(1),
+    NotImplemented(2);
+
+    companion object {
+        fun from(int: Int): GameVerificationResult =
+            entries.firstOrNull { it.int == int } ?: Success
+    }
+}
diff --git a/src/android/app/src/main/jni/native.cpp b/src/android/app/src/main/jni/native.cpp
index be0a723b1..963f57380 100644
--- a/src/android/app/src/main/jni/native.cpp
+++ b/src/android/app/src/main/jni/native.cpp
@@ -829,6 +829,43 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_removeMod(JNIEnv* env, jobject jobj,
                               program_id, GetJString(env, jname));
 }
 
+jobject Java_org_yuzu_yuzu_1emu_NativeLibrary_verifyInstalledContents(JNIEnv* env, jobject jobj,
+                                                                      jobject jcallback) {
+    auto jlambdaClass = env->GetObjectClass(jcallback);
+    auto jlambdaInvokeMethod = env->GetMethodID(
+        jlambdaClass, "invoke", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
+    const auto callback = [env, jcallback, jlambdaInvokeMethod](size_t max, size_t progress) {
+        auto jwasCancelled = env->CallObjectMethod(jcallback, jlambdaInvokeMethod,
+                                                   ToJDouble(env, max), ToJDouble(env, progress));
+        return GetJBoolean(env, jwasCancelled);
+    };
+
+    auto& session = EmulationSession::GetInstance();
+    std::vector<std::string> result = ContentManager::VerifyInstalledContents(
+        &session.System(), session.GetContentProvider(), callback);
+    jobjectArray jresult =
+        env->NewObjectArray(result.size(), IDCache::GetStringClass(), ToJString(env, ""));
+    for (size_t i = 0; i < result.size(); ++i) {
+        env->SetObjectArrayElement(jresult, i, ToJString(env, result[i]));
+    }
+    return jresult;
+}
+
+jint Java_org_yuzu_yuzu_1emu_NativeLibrary_verifyGameContents(JNIEnv* env, jobject jobj,
+                                                              jstring jpath, jobject jcallback) {
+    auto jlambdaClass = env->GetObjectClass(jcallback);
+    auto jlambdaInvokeMethod = env->GetMethodID(
+        jlambdaClass, "invoke", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
+    const auto callback = [env, jcallback, jlambdaInvokeMethod](size_t max, size_t progress) {
+        auto jwasCancelled = env->CallObjectMethod(jcallback, jlambdaInvokeMethod,
+                                                   ToJDouble(env, max), ToJDouble(env, progress));
+        return GetJBoolean(env, jwasCancelled);
+    };
+    auto& session = EmulationSession::GetInstance();
+    return static_cast<jint>(
+        ContentManager::VerifyGameContents(&session.System(), GetJString(env, jpath), callback));
+}
+
 jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getSavePath(JNIEnv* env, jobject jobj,
                                                           jstring jprogramId) {
     auto program_id = EmulationSession::GetProgramId(env, jprogramId);
diff --git a/src/android/app/src/main/res/layout/fragment_game_info.xml b/src/android/app/src/main/res/layout/fragment_game_info.xml
index 80ede8a8c..53af15787 100644
--- a/src/android/app/src/main/res/layout/fragment_game_info.xml
+++ b/src/android/app/src/main/res/layout/fragment_game_info.xml
@@ -118,6 +118,14 @@
                 android:layout_marginTop="16dp"
                 android:text="@string/copy_details" />
 
+            <com.google.android.material.button.MaterialButton
+                android:id="@+id/button_verify_integrity"
+                style="@style/Widget.Material3.Button"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="10dp"
+                android:text="@string/verify_integrity" />
+
         </LinearLayout>
 
     </androidx.core.widget.NestedScrollView>
diff --git a/src/android/app/src/main/res/values/strings.xml b/src/android/app/src/main/res/values/strings.xml
index bfcbb5812..eefcc3ff4 100644
--- a/src/android/app/src/main/res/values/strings.xml
+++ b/src/android/app/src/main/res/values/strings.xml
@@ -142,6 +142,8 @@
         <item quantity="other">Successfully imported %d saves</item>
     </plurals>
     <string name="no_save_data_found">No save data found</string>
+    <string name="verify_installed_content">Verify installed content</string>
+    <string name="verify_installed_content_description">Checks all installed content for corruption</string>
 
     <!-- Applet launcher strings -->
     <string name="applets">Applet launcher</string>
@@ -288,6 +290,7 @@
     <string name="import_complete">Import complete</string>
     <string name="more_options">More options</string>
     <string name="use_global_setting">Use global setting</string>
+    <string name="operation_completed_successfully">The operation completed successfully</string>
 
     <!-- GPU driver installation -->
     <string name="select_gpu_driver">Select GPU driver</string>
@@ -352,6 +355,14 @@
     <string name="content_install_notice_description">The content that you selected does not match this game.\nInstall anyway?</string>
     <string name="confirm_uninstall">Confirm uninstall</string>
     <string name="confirm_uninstall_description">Are you sure you want to uninstall this addon?</string>
+    <string name="verify_integrity">Verify integrity</string>
+    <string name="verifying">Verifying…</string>
+    <string name="verify_success">Integrity verification succeeded!</string>
+    <string name="verify_failure">Integrity verification failed!</string>
+    <string name="verify_failure_description">File contents may be corrupt</string>
+    <string name="verify_no_result">Integrity verification couldn\'t be performed</string>
+    <string name="verify_no_result_description">File contents were not checked for validity</string>
+    <string name="verification_failed_for">Verification failed for the following files:\n%1$s</string>
 
     <!-- ROM loading errors -->
     <string name="loader_error_encrypted">Your ROM is encrypted</string>
diff --git a/src/frontend_common/content_manager.h b/src/frontend_common/content_manager.h
index 23f2979db..0b0fee73e 100644
--- a/src/frontend_common/content_manager.h
+++ b/src/frontend_common/content_manager.h
@@ -11,10 +11,12 @@
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/mode.h"
 #include "core/file_sys/nca_metadata.h"
+#include "core/file_sys/patch_manager.h"
 #include "core/file_sys/registered_cache.h"
 #include "core/file_sys/submission_package.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/loader/loader.h"
+#include "core/loader/nca.h"
 
 namespace ContentManager {
 
@@ -25,6 +27,12 @@ enum class InstallResult {
     BaseInstallAttempted,
 };
 
+enum class GameVerificationResult {
+    Success,
+    Failed,
+    NotImplemented,
+};
+
 /**
  * \brief Removes a single installed DLC
  * \param fs_controller [FileSystemController] reference from the Core::System instance
@@ -119,14 +127,14 @@ inline bool RemoveMod(const Service::FileSystem::FileSystemController& fs_contro
  * \param system Raw pointer to the system instance
  * \param vfs Raw pointer to the VfsFilesystem instance in Core::System
  * \param filename Path to the NSP file
- * \param callback Optional callback to report the progress of the installation. The first size_t
+ * \param callback Callback to report the progress of the installation. The first size_t
  * parameter is the total size of the virtual file and the second is the current progress. If you
- * return false to the callback, it will cancel the installation as soon as possible.
+ * return true to the callback, it will cancel the installation as soon as possible.
  * \return [InstallResult] representing how the installation finished
  */
-inline InstallResult InstallNSP(
-    Core::System* system, FileSys::VfsFilesystem* vfs, const std::string& filename,
-    const std::function<bool(size_t, size_t)>& callback = std::function<bool(size_t, size_t)>()) {
+inline InstallResult InstallNSP(Core::System* system, FileSys::VfsFilesystem* vfs,
+                                const std::string& filename,
+                                const std::function<bool(size_t, size_t)>& callback) {
     const auto copy = [callback](const FileSys::VirtualFile& src, const FileSys::VirtualFile& dest,
                                  std::size_t block_size) {
         if (src == nullptr || dest == nullptr) {
@@ -184,15 +192,15 @@ inline InstallResult InstallNSP(
  * \param filename Path to the NCA file
  * \param registered_cache Raw pointer to the registered cache that the NCA will be installed to
  * \param title_type Type of NCA package to install
- * \param callback Optional callback to report the progress of the installation. The first size_t
+ * \param callback Callback to report the progress of the installation. The first size_t
  * parameter is the total size of the virtual file and the second is the current progress. If you
- * return false to the callback, it will cancel the installation as soon as possible.
+ * return true to the callback, it will cancel the installation as soon as possible.
  * \return [InstallResult] representing how the installation finished
  */
-inline InstallResult InstallNCA(
-    FileSys::VfsFilesystem* vfs, const std::string& filename,
-    FileSys::RegisteredCache* registered_cache, const FileSys::TitleType title_type,
-    const std::function<bool(size_t, size_t)>& callback = std::function<bool(size_t, size_t)>()) {
+inline InstallResult InstallNCA(FileSys::VfsFilesystem* vfs, const std::string& filename,
+                                FileSys::RegisteredCache* registered_cache,
+                                const FileSys::TitleType title_type,
+                                const std::function<bool(size_t, size_t)>& callback) {
     const auto copy = [callback](const FileSys::VirtualFile& src, const FileSys::VirtualFile& dest,
                                  std::size_t block_size) {
         if (src == nullptr || dest == nullptr) {
@@ -235,4 +243,129 @@ inline InstallResult InstallNCA(
     }
 }
 
+/**
+ * \brief Verifies the installed contents for a given ManualContentProvider
+ * \param system Raw pointer to the system instance
+ * \param provider Raw pointer to the content provider that's tracking indexed games
+ * \param callback Callback to report the progress of the installation. The first size_t
+ * parameter is the total size of the installed contents and the second is the current progress. If
+ * you return true to the callback, it will cancel the installation as soon as possible.
+ * \return A list of entries that failed to install. Returns an empty vector if successful.
+ */
+inline std::vector<std::string> VerifyInstalledContents(
+    Core::System* system, FileSys::ManualContentProvider* provider,
+    const std::function<bool(size_t, size_t)>& callback) {
+    // Get content registries.
+    auto bis_contents = system->GetFileSystemController().GetSystemNANDContents();
+    auto user_contents = system->GetFileSystemController().GetUserNANDContents();
+
+    std::vector<FileSys::RegisteredCache*> content_providers;
+    if (bis_contents) {
+        content_providers.push_back(bis_contents);
+    }
+    if (user_contents) {
+        content_providers.push_back(user_contents);
+    }
+
+    // Get associated NCA files.
+    std::vector<FileSys::VirtualFile> nca_files;
+
+    // Get all installed IDs.
+    size_t total_size = 0;
+    for (auto nca_provider : content_providers) {
+        const auto entries = nca_provider->ListEntriesFilter();
+
+        for (const auto& entry : entries) {
+            auto nca_file = nca_provider->GetEntryRaw(entry.title_id, entry.type);
+            if (!nca_file) {
+                continue;
+            }
+
+            total_size += nca_file->GetSize();
+            nca_files.push_back(std::move(nca_file));
+        }
+    }
+
+    // Declare a list of file names which failed to verify.
+    std::vector<std::string> failed;
+
+    size_t processed_size = 0;
+    bool cancelled = false;
+    auto nca_callback = [&](size_t nca_processed, size_t nca_total) {
+        cancelled = callback(total_size, processed_size + nca_processed);
+        return !cancelled;
+    };
+
+    // Using the NCA loader, determine if all NCAs are valid.
+    for (auto& nca_file : nca_files) {
+        Loader::AppLoader_NCA nca_loader(nca_file);
+
+        auto status = nca_loader.VerifyIntegrity(nca_callback);
+        if (cancelled) {
+            break;
+        }
+        if (status != Loader::ResultStatus::Success) {
+            FileSys::NCA nca(nca_file);
+            const auto title_id = nca.GetTitleId();
+            std::string title_name = "unknown";
+
+            const auto control = provider->GetEntry(FileSys::GetBaseTitleID(title_id),
+                                                    FileSys::ContentRecordType::Control);
+            if (control && control->GetStatus() == Loader::ResultStatus::Success) {
+                const FileSys::PatchManager pm{title_id, system->GetFileSystemController(),
+                                               *provider};
+                const auto [nacp, logo] = pm.ParseControlNCA(*control);
+                if (nacp) {
+                    title_name = nacp->GetApplicationName();
+                }
+            }
+
+            if (title_id > 0) {
+                failed.push_back(
+                    fmt::format("{} ({:016X}) ({})", nca_file->GetName(), title_id, title_name));
+            } else {
+                failed.push_back(fmt::format("{} (unknown)", nca_file->GetName()));
+            }
+        }
+
+        processed_size += nca_file->GetSize();
+    }
+    return failed;
+}
+
+/**
+ * \brief Verifies the contents of a given game
+ * \param system Raw pointer to the system instance
+ * \param game_path Patch to the game file
+ * \param callback Callback to report the progress of the installation. The first size_t
+ * parameter is the total size of the installed contents and the second is the current progress. If
+ * you return true to the callback, it will cancel the installation as soon as possible.
+ * \return GameVerificationResult representing how the verification process finished
+ */
+inline GameVerificationResult VerifyGameContents(
+    Core::System* system, const std::string& game_path,
+    const std::function<bool(size_t, size_t)>& callback) {
+    const auto loader = Loader::GetLoader(
+        *system, system->GetFilesystem()->OpenFile(game_path, FileSys::Mode::Read));
+    if (loader == nullptr) {
+        return GameVerificationResult::NotImplemented;
+    }
+
+    bool cancelled = false;
+    auto loader_callback = [&](size_t processed, size_t total) {
+        cancelled = callback(total, processed);
+        return !cancelled;
+    };
+
+    const auto status = loader->VerifyIntegrity(loader_callback);
+    if (cancelled || status == Loader::ResultStatus::ErrorIntegrityVerificationNotImplemented) {
+        return GameVerificationResult::NotImplemented;
+    }
+
+    if (status == Loader::ResultStatus::ErrorIntegrityVerificationFailed) {
+        return GameVerificationResult::Failed;
+    }
+    return GameVerificationResult::Success;
+}
+
 } // namespace ContentManager
diff --git a/src/yuzu/main.cpp b/src/yuzu/main.cpp
index 05bd4174c..d8b0beadf 100644
--- a/src/yuzu/main.cpp
+++ b/src/yuzu/main.cpp
@@ -2786,16 +2786,6 @@ void GMainWindow::OnGameListVerifyIntegrity(const std::string& game_path) {
         QMessageBox::warning(this, tr("Integrity verification couldn't be performed!"),
                              tr("File contents were not checked for validity."));
     };
-    const auto Failed = [this] {
-        QMessageBox::critical(this, tr("Integrity verification failed!"),
-                              tr("File contents may be corrupt."));
-    };
-
-    const auto loader = Loader::GetLoader(*system, vfs->OpenFile(game_path, FileSys::Mode::Read));
-    if (loader == nullptr) {
-        NotImplemented();
-        return;
-    }
 
     QProgressDialog progress(tr("Verifying integrity..."), tr("Cancel"), 0, 100, this);
     progress.setWindowModality(Qt::WindowModal);
@@ -2803,30 +2793,26 @@ void GMainWindow::OnGameListVerifyIntegrity(const std::string& game_path) {
     progress.setAutoClose(false);
     progress.setAutoReset(false);
 
-    const auto QtProgressCallback = [&](size_t processed_size, size_t total_size) {
-        if (progress.wasCanceled()) {
-            return false;
-        }
-
+    const auto QtProgressCallback = [&](size_t total_size, size_t processed_size) {
         progress.setValue(static_cast<int>((processed_size * 100) / total_size));
-        return true;
+        return progress.wasCanceled();
     };
 
-    const auto status = loader->VerifyIntegrity(QtProgressCallback);
-    if (progress.wasCanceled() ||
-        status == Loader::ResultStatus::ErrorIntegrityVerificationNotImplemented) {
+    const auto result =
+        ContentManager::VerifyGameContents(system.get(), game_path, QtProgressCallback);
+    progress.close();
+    switch (result) {
+    case ContentManager::GameVerificationResult::Success:
+        QMessageBox::information(this, tr("Integrity verification succeeded!"),
+                                 tr("The operation completed successfully."));
+        break;
+    case ContentManager::GameVerificationResult::Failed:
+        QMessageBox::critical(this, tr("Integrity verification failed!"),
+                              tr("File contents may be corrupt."));
+        break;
+    case ContentManager::GameVerificationResult::NotImplemented:
         NotImplemented();
-        return;
-    }
-
-    if (status == Loader::ResultStatus::ErrorIntegrityVerificationFailed) {
-        Failed();
-        return;
     }
-
-    progress.close();
-    QMessageBox::information(this, tr("Integrity verification succeeded!"),
-                             tr("The operation completed successfully."));
 }
 
 void GMainWindow::OnGameListCopyTID(u64 program_id) {
@@ -4121,10 +4107,6 @@ void GMainWindow::OnOpenYuzuFolder() {
 }
 
 void GMainWindow::OnVerifyInstalledContents() {
-    // Declare sizes.
-    size_t total_size = 0;
-    size_t processed_size = 0;
-
     // Initialize a progress dialog.
     QProgressDialog progress(tr("Verifying integrity..."), tr("Cancel"), 0, 100, this);
     progress.setWindowModality(Qt::WindowModal);
@@ -4132,93 +4114,25 @@ void GMainWindow::OnVerifyInstalledContents() {
     progress.setAutoClose(false);
     progress.setAutoReset(false);
 
-    // Declare a list of file names which failed to verify.
-    std::vector<std::string> failed;
-
     // Declare progress callback.
-    auto QtProgressCallback = [&](size_t nca_processed, size_t nca_total) {
-        if (progress.wasCanceled()) {
-            return false;
-        }
-        progress.setValue(static_cast<int>(((processed_size + nca_processed) * 100) / total_size));
-        return true;
+    auto QtProgressCallback = [&](size_t total_size, size_t processed_size) {
+        progress.setValue(static_cast<int>((processed_size * 100) / total_size));
+        return progress.wasCanceled();
     };
 
-    // Get content registries.
-    auto bis_contents = system->GetFileSystemController().GetSystemNANDContents();
-    auto user_contents = system->GetFileSystemController().GetUserNANDContents();
-
-    std::vector<FileSys::RegisteredCache*> content_providers;
-    if (bis_contents) {
-        content_providers.push_back(bis_contents);
-    }
-    if (user_contents) {
-        content_providers.push_back(user_contents);
-    }
-
-    // Get associated NCA files.
-    std::vector<FileSys::VirtualFile> nca_files;
-
-    // Get all installed IDs.
-    for (auto nca_provider : content_providers) {
-        const auto entries = nca_provider->ListEntriesFilter();
-
-        for (const auto& entry : entries) {
-            auto nca_file = nca_provider->GetEntryRaw(entry.title_id, entry.type);
-            if (!nca_file) {
-                continue;
-            }
-
-            total_size += nca_file->GetSize();
-            nca_files.push_back(std::move(nca_file));
-        }
-    }
-
-    // Using the NCA loader, determine if all NCAs are valid.
-    for (auto& nca_file : nca_files) {
-        Loader::AppLoader_NCA nca_loader(nca_file);
-
-        auto status = nca_loader.VerifyIntegrity(QtProgressCallback);
-        if (progress.wasCanceled()) {
-            break;
-        }
-        if (status != Loader::ResultStatus::Success) {
-            FileSys::NCA nca(nca_file);
-            const auto title_id = nca.GetTitleId();
-            std::string title_name = "unknown";
-
-            const auto control = provider->GetEntry(FileSys::GetBaseTitleID(title_id),
-                                                    FileSys::ContentRecordType::Control);
-            if (control && control->GetStatus() == Loader::ResultStatus::Success) {
-                const FileSys::PatchManager pm{title_id, system->GetFileSystemController(),
-                                               *provider};
-                const auto [nacp, logo] = pm.ParseControlNCA(*control);
-                if (nacp) {
-                    title_name = nacp->GetApplicationName();
-                }
-            }
-
-            if (title_id > 0) {
-                failed.push_back(
-                    fmt::format("{} ({:016X}) ({})", nca_file->GetName(), title_id, title_name));
-            } else {
-                failed.push_back(fmt::format("{} (unknown)", nca_file->GetName()));
-            }
-        }
-
-        processed_size += nca_file->GetSize();
-    }
-
+    const std::vector<std::string> result =
+        ContentManager::VerifyInstalledContents(system.get(), provider.get(), QtProgressCallback);
     progress.close();
 
-    if (failed.size() > 0) {
-        auto failed_names = QString::fromStdString(fmt::format("{}", fmt::join(failed, "\n")));
+    if (result.empty()) {
+        QMessageBox::information(this, tr("Integrity verification succeeded!"),
+                                 tr("The operation completed successfully."));
+    } else {
+        const auto failed_names =
+            QString::fromStdString(fmt::format("{}", fmt::join(result, "\n")));
         QMessageBox::critical(
             this, tr("Integrity verification failed!"),
             tr("Verification failed for the following files:\n\n%1").arg(failed_names));
-    } else {
-        QMessageBox::information(this, tr("Integrity verification succeeded!"),
-                                 tr("The operation completed successfully."));
     }
 }