ci: add legacy windows build

.github/workflows/build.yml

@@ -33,6 +33,12 @@ jobs:
           - cross_os: darwin
             cross_arch: arm64
             go_version: "1.24.4"
+          - cross_os: windowslegacy
+            cross_arch: amd64
+            go_version: "1.24.4"
+          - cross_os: windowslegacy
+            cross_arch: 386
+            go_version: "1.24.4"
       fail-fast: false
     runs-on: ubuntu-latest
     steps:
@@ -52,9 +58,16 @@ jobs:
           cache-dependency-path: |
             core/server/go.sum
             core/updater/go.sum
+      - name: Install Golang For Legacy Windows
+        if: matrix.cross_os == 'windowslegacy'
+        run: |
+          curl -L -o go.7z https://github.com/throneproj/env_windows_legacy/releases/download/latest/go.7z
+          7z x go.7z
       - name: Install Protoc
+        if: matrix.cross_os != 'public_res'
         uses: arduino/setup-protoc@v3
       - name: Installing protoc-gen-go
+        if: matrix.cross_os != 'public_res'
         run: |
           go install github.com/golang/protobuf/protoc-gen-go@latest
           go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
@@ -83,7 +96,11 @@ jobs:
         include:
           - platform: windows-latest
             qt_version: "6.9.0"
+<<<<<<< HEAD
             target: amd64
+=======
+            target: x86_64
+>>>>>>> origin/windows-legacy
           - platform: ubuntu-22.04
             qt_version: "6.9.0"
             target: amd64
@@ -96,6 +113,12 @@ jobs:
           - platform: macos-latest
             qt_version: "6.9.0"
             target: arm64
+          - platform: windows-latest
+            qt_version: "6.2.12"
+            target: x86_64
+          - platform: windows-latest
+            qt_version: "6.2.12"
+            target: i686
       fail-fast: false
     runs-on: ${{ matrix.platform }}
     env:
@@ -109,6 +132,8 @@ jobs:
       - name: Install mingw
         if: matrix.platform == 'windows-latest'
         uses: bwoodsend/setup-winlibs-action@v1.15
+        with:
+          architecture: ${{ matrix.target }}
       - name: Download Artifacts
         uses: actions/download-artifact@v4.3.0
         with:
@@ -116,14 +141,14 @@ jobs:
       # ========================================================================================================= Qt Install
       - name: Qt static Cache
         id: cache-static-Qt
-        if: matrix.platform == 'windows-latest'
+        if: matrix.platform == 'windows-latest' && matrix.qt_version != '6.2.12'
         uses: actions/cache@v4.2.3
         with:
           path: qt6/build
           key: QtStaticCache-${{ matrix.platform }}-${{ matrix.target }}-Qt${{ matrix.qt_version }}
       - name: Install Qt Windows
         shell: powershell
-        if: matrix.platform == 'windows-latest' && steps.cache-static-Qt.outputs.cache-hit != 'true'
+        if: matrix.platform == 'windows-latest' && steps.cache-static-Qt.outputs.cache-hit != 'true' && matrix.qt_version != '6.2.12'
         run: ./script/build_qt_static_windows.bat ${{ matrix.qt_version }}
       - name: Install Qt
         uses: jurplel/install-qt-action@v4.3.0
@@ -136,7 +161,7 @@ jobs:
       # ========================================================================================================= Generate MakeFile and Build
       - name: Windows - Generate MakeFile and Build
         shell: bash
-        if: matrix.platform == 'windows-latest'
+        if: matrix.platform == 'windows-latest' && matrix.qt_version != '6.2.12'
         run: |
           export CMAKE_PREFIX_PATH=$PWD/qt6/build/lib/cmake
           mkdir build
@@ -144,10 +169,26 @@ jobs:
           cmake -GNinja -DCMAKE_CXX_FLAGS="-static" -DCMAKE_BUILD_TYPE=Debug ..
           ninja -j2
           cd ..
-          ./script/deploy_windows64.sh
+          ./script/deploy_windows.sh
+      - name: Legacy Windows - Generate MakeFile and Build
+        shell: bash
+        if: matrix.platform == 'windows-latest' && matrix.qt_version == '6.2.12'
+        run: |
+          curl -L -o qt.7z https://github.com/throneproj/env_windows_legacy/releases/download/latest/qt-${{ matrix.target }}.7z
+          7z x qt.7z
+          curl -L -o openssl.7z https://github.com/throneproj/env_windows_legacy/releases/download/latest/openssl-${{ matrix.target }}.7z
+          7z x openssl.7z
+          export CMAKE_PREFIX_PATH=$PWD/Qt/lib/cmake
+          export OPENSSL_ROOT_DIR=$PWD/openssl
+          mkdir build
+          cd build
+          cmake -GNinja -DCMAKE_CXX_FLAGS="-static" -DCMAKE_BUILD_TYPE=Debug ..
+          ninja -j2
+          cd ..
+          ./script/deploy_windows.sh ${{ matrix.target }}
       - name: Build Installer with NSIS
         shell: cmd
-        if: matrix.platform == 'windows-latest'
+        if: matrix.platform == 'windows-latest' && matrix.qt_version != '6.2.12'
         run: |
           cp .\script\windows_installer.nsi .
           makensis windows_installer.nsi
@@ -225,6 +266,14 @@ jobs:
           zip -9 -r $version_standalone-windows64.zip Throne
           rm -rf Throne
           ####
+          mv windows32 Throne
+          zip -9 -r $version_standalone-windows32.zip Throne
+          rm -rf Throne
+          ####
+          mv windowslegacy64 Throne
+          zip -9 -r $version_standalone-windowslegacy64.zip Throne
+          rm -rf Throne
+          ####
           mkdir Throne
           mv macos-arm64/Throne.app Throne/Throne.app
           zip -9 --symlinks -r $version_standalone-macos-arm64.zip Throne
@@ -243,6 +292,8 @@ jobs:
           rm -rf linux-arm64
           rm -rf linux-amd64
           rm -rf windows64
+          rm -rf windows32
+          rm -rf windowslegacy64
           rm -rf macos-amd64
           rm -rf macos-arm64
           rm -rf public_res

script/build_go.sh

@@ -3,12 +3,25 @@ set -e
 
 source script/env_deploy.sh
 [ "$GOOS" == "windows" ] && [ "$GOARCH" == "amd64" ] && DEST=$DEPLOYMENT/windows64 || true
+[ "$GOOS" == "windows" ] && [ "$GOARCH" == "386" ] && DEST=$DEPLOYMENT/windows32 || true
 [ "$GOOS" == "windows" ] && [ "$GOARCH" == "arm64" ] && DEST=$DEPLOYMENT/windows-arm64 || true
 [ "$GOOS" == "linux" ] && [ "$GOARCH" == "amd64" ] && DEST=$DEPLOYMENT/linux-amd64 || true
 [ "$GOOS" == "linux" ] && [ "$GOARCH" == "arm64" ] && DEST=$DEPLOYMENT/linux-arm64 || true
 [ "$GOOS" == "darwin" ] && [ "$GOARCH" == "amd64" ] && DEST=$DEPLOYMENT/macos-amd64 || true
 [ "$GOOS" == "darwin" ] && [ "$GOARCH" == "arm64" ] && DEST=$DEPLOYMENT/macos-arm64 || true
 
+if [[ "$GOOS" == "windowslegacy" ]]; then
+  GOOS="windows"
+  GOCMD="$PWD/go/bin/go"
+  if [[ $GOARCH == 'amd64' ]]; then
+    DEST=$DEPLOYMENT/windowslegacy64
+  else
+    DEST=$DEPLOYMENT/windows32
+  fi
+else
+  GOCMD="go"
+fi
+
 if [ -z $DEST ]; then
   echo "Please set GOOS GOARCH"
   exit 1
@@ -20,7 +33,7 @@ export CGO_ENABLED=0
 
 #### Go: updater ####
 pushd core/updater
-[ "$GOOS" == "darwin" ] || go build -o $DEST -trimpath -ldflags "-w -s"
+[ "$GOOS" == "darwin" ] || $GOCMD build -o $DEST -trimpath -ldflags "-w -s"
 popd
 
 #### Go: core ####
@@ -29,5 +42,5 @@ pushd gen
 protoc -I . --go_out=. --go_opt paths=source_relative --go-grpc_out=. --go-grpc_opt paths=source_relative libcore.proto
 popd
 VERSION_SINGBOX=$(go list -m -f '{{.Version}}' github.com/sagernet/sing-box)
-go build -v -o $DEST -trimpath -ldflags "-w -s -X 'github.com/sagernet/sing-box/constant.Version=${VERSION_SINGBOX}'" -tags "with_clash_api,with_gvisor,with_quic,with_wireguard,with_utls,with_ech,with_dhcp"
+$GOCMD build -v -o $DEST -trimpath -ldflags "-w -s -X 'github.com/sagernet/sing-box/constant.Version=${VERSION_SINGBOX}'" -tags "with_clash_api,with_gvisor,with_quic,with_wireguard,with_utls,with_ech,with_dhcp"
 popd

script/deploy_windows.sh

@@ -2,7 +2,18 @@
 set -e
 
 source script/env_deploy.sh
-DEST=$DEPLOYMENT/windows64
+if [[ $1 == 'i686' ]]; then
+  ARCH="windowslegacy-386"
+  DEST=$DEPLOYMENT/windows32
+else
+  if [[ $1 == 'x86_64' ]]; then
+    ARCH="windowslegacy-amd64"
+    DEST=$DEPLOYMENT/windowslegacy64
+  else
+    ARCH="windows-amd64"
+    DEST=$DEPLOYMENT/windows64
+  fi
+fi
 rm -rf $DEST
 mkdir -p $DEST
 
@@ -21,7 +32,7 @@ mv Throne.pdb $DEST
 cp $BUILD/Throne.exe $DEST
 
 cd download-artifact
-cd *windows-amd64
+cd *$ARCH
 tar xvzf artifacts.tgz -C ../../
 cd ..
 cd *public_res

src/ui/mainwindow.cpp

@@ -22,6 +22,10 @@
 
 #ifdef Q_OS_WIN
 #include "3rdparty/WinCommander.hpp"
+#include <sdkddkver.h>
+#include <minwindef.h>
+#include <winbase.h>
+#include <VersionHelpers.h>
 #else
 #ifdef Q_OS_LINUX
 #include "include/sys/linux/LinuxCap.h"
@@ -2280,16 +2284,19 @@ void MainWindow::CheckUpdate() {
     QString search;
 #ifdef Q_OS_WIN32
 #  ifdef Q_OS_WIN64
-	search = "windows64";
+    if (IsWindows10OrGreater())
+        search = "windows64";
+    else
+	search = "windowslegacy64";
 #  else
 	search = "windows32";
 #  endif
 #endif
 #ifdef Q_OS_LINUX
 #  ifdef Q_PROCESSOR_X86_64
-    search = "linux-amd64";
+        search = "linux-amd64";
 #  else
-    search = "linux-arm64";
+        search = "linux-arm64";
 #  endif
 #endif
 #ifdef Q_OS_MACOS