1 files changed, 139 insertions, 0 deletions
diff --git a/src/server/shared/Realm/ClientBuildInfo.cpp b/src/server/shared/Realm/ClientBuildInfo.cpp
new file mode 100644
index 00000000000..b2ccf07b99a
--- /dev/null
+++ b/src/server/shared/Realm/ClientBuildInfo.cpp
@@ -0,0 +1,139 @@
+/*
+ * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "ClientBuildInfo.h"
+#include "DatabaseEnv.h"
+#include "Log.h"
+#include "Util.h"
+#include <algorithm>
+#include <cctype>
+
+namespace
+{
+std::vector<ClientBuild::Info> Builds;
+}
+
+namespace ClientBuild
+{
+std::array<char, 5> ToCharArray(uint32 value)
+{
+    auto normalize = [](uint8 c) -> char
+    {
+        if (!c || std::isprint(c))
+            return char(c);
+        return ' ';
+    };
+
+    std::array<char, 5> chars = { char((value >> 24) & 0xFF), char((value >> 16) & 0xFF), char((value >> 8) & 0xFF), char(value & 0xFF), '\0' };
+
+    auto firstNonZero = std::ranges::find_if(chars, [](char c) { return c != '\0'; });
+    if (firstNonZero != chars.end())
+    {
+        // move leading zeros to end
+        std::rotate(chars.begin(), firstNonZero, chars.end());
+
+        // ensure we only have printable characters remaining
+        std::ranges::transform(chars, chars.begin(), normalize);
+    }
+
+    return chars;
+}
+
+bool Platform::IsValid(std::string_view platform)
+{
+    if (platform.length() > sizeof(uint32))
+        return false;
+
+    switch (ToFourCC(platform))
+    {
+        case Win_x86:
+        case Mac_x86:
+            return true;
+        default:
+            break;
+    }
+
+    return false;
+}
+
+void LoadBuildInfo()
+{
+    Builds.clear();
+
+    //                                                              0             1              2              3      4
+    if (QueryResult result = LoginDatabase.Query("SELECT majorVersion, minorVersion, bugfixVersion, hotfixVersion, build FROM build_info ORDER BY build ASC"))
+    {
+        do
+        {
+            Field* fields = result->Fetch();
+            Info& build = Builds.emplace_back();
+            build.MajorVersion = fields[0].GetUInt32();
+            build.MinorVersion = fields[1].GetUInt32();
+            build.BugfixVersion = fields[2].GetUInt32();
+            std::string hotfixVersion = fields[3].GetString();
+            if (hotfixVersion.length() < build.HotfixVersion.size())
+                std::ranges::copy(hotfixVersion, build.HotfixVersion.begin());
+            else
+                build.HotfixVersion = { };
+
+            build.Build = fields[4].GetUInt32();
+
+        } while (result->NextRow());
+    }
+
+    //                                                        0           1                 2
+    if (QueryResult result = LoginDatabase.Query("SELECT `build`, `platform`, `executableHash` FROM `build_executable_hash`"))
+    {
+        do
+        {
+            Field* fields = result->Fetch();
+
+            uint32 build = fields[0].GetInt32();
+            auto buildInfo = std::ranges::find(Builds, build, &Info::Build);
+            if (buildInfo == Builds.end())
+            {
+                TC_LOG_ERROR("sql.sql", "ClientBuild::LoadBuildInfo: Unknown `build` {} in `build_executable_hash` - missing from `build_info`, skipped.", build);
+                continue;
+            }
+
+            std::string_view platform = fields[1].GetStringView();
+            if (!Platform::IsValid(platform))
+            {
+                TC_LOG_ERROR("sql.sql", "ClientBuild::LoadBuildInfo: Invalid platform {} for `build` {} in `build_executable_hash`, skipped.", platform, build);
+                continue;
+            }
+
+            ExecutableHash& buildKey = buildInfo->ExecutableHashes.emplace_back();
+            buildKey.Platform = ToFourCC(platform);
+            buildKey.Hash = fields[2].GetBinary<ExecutableHash::Size>();
+
+        } while (result->NextRow());
+    }
+}
+
+Info const* GetBuildInfo(uint32 build)
+{
+    auto buildInfo = std::ranges::find(Builds, build, &Info::Build);
+    return buildInfo != Builds.end() ? &*buildInfo : nullptr;
+}
+
+uint32 GetMinorMajorBugfixVersionForBuild(uint32 build)
+{
+    auto buildInfo = std::ranges::lower_bound(Builds, build, {}, &Info::Build);
+    return buildInfo != Builds.end() ? (buildInfo->MajorVersion * 10000 + buildInfo->MinorVersion * 100 + buildInfo->BugfixVersion) : 0;
+}
+}