Core/Realms: Move build info (and auth seeds) to database

5 files changed, 278 insertions, 39 deletions

diff --git a/sql/base/auth_database.sql b/sql/base/auth_database.sql
index a14ca4383f7..997b7d944e6 100644
--- a/sql/base/auth_database.sql
+++ b/sql/base/auth_database.sql
@@ -436,6 +436,122 @@ LOCK TABLES `battlenet_item_favorite_appearances` WRITE;
 UNLOCK TABLES;
 
 --
+-- Table structure for table `build_info`
+--
+
+DROP TABLE IF EXISTS `build_info`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8mb4 */;
+CREATE TABLE `build_info` (
+  `build` int(11) NOT NULL,
+  `majorVersion` int(11) DEFAULT NULL,
+  `minorVersion` int(11) DEFAULT NULL,
+  `bugfixVersion` int(11) DEFAULT NULL,
+  `hotfixVersion` char(3) DEFAULT NULL,
+  `winAuthSeed` varchar(32) DEFAULT NULL,
+  `win64AuthSeed` varchar(32) DEFAULT NULL,
+  `mac64AuthSeed` varchar(32) DEFAULT NULL,
+  `winChecksumSeed` varchar(40) DEFAULT NULL,
+  `macChecksumSeed` varchar(40) DEFAULT NULL,
+  PRIMARY KEY (`build`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `build_info`
+--
+
+LOCK TABLES `build_info` WRITE;
+/*!40000 ALTER TABLE `build_info` DISABLE KEYS */;
+INSERT INTO `build_info` VALUES
+(5875,1,12,1,NULL,NULL,NULL,NULL,'95EDB27C7823B363CBDDAB56A392E7CB73FCCA20','8D173CC381961EEBABF336F5E6675B101BB513E5'),
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+(32722,8,2,5,NULL,NULL,'1A09BE1D38A122586B4931BECCEAD4AA',NULL,NULL,NULL);
+/*!40000 ALTER TABLE `build_info` ENABLE KEYS */;
+UNLOCK TABLES;
+
+--
 -- Table structure for table `ip_banned`
 --
 
@@ -2192,7 +2308,8 @@ INSERT INTO `updates` VALUES
 ('2019_11_13_00_auth.sql','EB680BA7D6B3A21A432687F452CDD86FB2DA677C','RELEASED','2019-11-13 11:49:55',0),
 ('2019_11_20_00_auth.sql','9BC11595D9CEA486AC1540A204DCE9D86A008D7D','RELEASED','2019-11-20 12:31:56',0),
 ('2019_11_23_00_auth.sql','098708CDC5614B4523AD3B17670939671E661443','RELEASED','2019-11-23 12:20:03',0),
-('2019_12_04_00_auth.sql','4EB3D028DD80B18DA9B9250ADA4D22AA0D3C0447','RELEASED','2019-12-04 18:03:39',0);
+('2019_12_04_00_auth.sql','4EB3D028DD80B18DA9B9250ADA4D22AA0D3C0447','RELEASED','2019-12-04 18:03:39',0),
+('2019_12_07_00_auth.sql','F354DA31D5B300609C6AE8A25667CA4DE0A7349F','RELEASED','2019-12-07 12:57:23',0);
 /*!40000 ALTER TABLE `updates` ENABLE KEYS */;
 UNLOCK TABLES;
 
diff --git a/sql/updates/auth/master/2019_12_07_00_auth.sql b/sql/updates/auth/master/2019_12_07_00_auth.sql
new file mode 100644
index 00000000000..1cbe9f22482
--- /dev/null
+++ b/sql/updates/auth/master/2019_12_07_00_auth.sql
@@ -0,0 +1,106 @@
+--
+-- Table structure for table `build_info`
+--
+DROP TABLE IF EXISTS `build_info`;
+CREATE TABLE `build_info` (
+  `build` int(11) NOT NULL,
+  `majorVersion` int(11) DEFAULT NULL,
+  `minorVersion` int(11) DEFAULT NULL,
+  `bugfixVersion` int(11) DEFAULT NULL,
+  `hotfixVersion` char(3) DEFAULT NULL,
+  `winAuthSeed` varchar(32) DEFAULT NULL,
+  `win64AuthSeed` varchar(32) DEFAULT NULL,
+  `mac64AuthSeed` varchar(32) DEFAULT NULL,
+  `winChecksumSeed` varchar(40) DEFAULT NULL,
+  `macChecksumSeed` varchar(40) DEFAULT NULL,
+  PRIMARY KEY (`build`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+--
+-- Dumping data for table `build_info`
+--
+INSERT INTO `build_info` VALUES
+(5875,1,12,1,NULL,NULL,NULL,NULL,'95EDB27C7823B363CBDDAB56A392E7CB73FCCA20','8D173CC381961EEBABF336F5E6675B101BB513E5'),
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diff --git a/src/server/game/Server/WorldSocket.cpp b/src/server/game/Server/WorldSocket.cpp
index ace6d375e48..cc1deaabf16 100644
--- a/src/server/game/Server/WorldSocket.cpp
+++ b/src/server/game/Server/WorldSocket.cpp
@@ -25,7 +25,7 @@
 #include "HmacHash.h"
 #include "IPLocation.h"
 #include "PacketLog.h"
-#include "Realm.h"
+#include "RealmList.h"
 #include "RBAC.h"
 #include "ScriptMgr.h"
 #include "SessionKeyGeneration.h"
@@ -69,9 +69,6 @@ uint8 const WorldSocket::SessionKeySeed[16] = { 0x58, 0xCB, 0xCF, 0x40, 0xFE, 0x
 uint8 const WorldSocket::ContinuedSessionSeed[16] = { 0x16, 0xAD, 0x0C, 0xD4, 0x46, 0xF9, 0x4F, 0xB2, 0xEF, 0x7D, 0xEA, 0x2A, 0x17, 0x66, 0x4D, 0x2F };
 uint8 const WorldSocket::EncryptionKeySeed[16] = { 0xE9, 0x75, 0x3C, 0x50, 0x90, 0x93, 0x61, 0xDA, 0x3B, 0x07, 0xEE, 0xFA, 0xFF, 0x9D, 0x41, 0xB8 };
 
-uint8 const ClientTypeSeed_Wn64[16] = { 0x1A, 0x09, 0xBE, 0x1D, 0x38, 0xA1, 0x22, 0x58, 0x6B, 0x49, 0x31, 0xBE, 0xCC, 0xEA, 0xD4, 0xAA };
-uint8 const ClientTypeSeed_Mc64[16] = { 0x34, 0x1C, 0xFE, 0xFE, 0x3D, 0x72, 0xAC, 0xA9, 0xA4, 0x40, 0x7D, 0xC5, 0x35, 0xDE, 0xD6, 0x6A };
-
 WorldSocket::WorldSocket(tcp::socket&& socket) : Socket(std::move(socket)),
     _type(CONNECTION_TYPE_REALM), _key(0), _OverSpeedPings(0),
     _worldSession(nullptr), _authed(false), _sendBufferSize(4096), _compressionStream(nullptr)
@@ -671,6 +668,15 @@ void WorldSocket::HandleAuthSessionCallback(std::shared_ptr<WorldPackets::Auth::
         return;
     }
 
+    RealmBuildInfo const* buildInfo = sRealmList->GetBuildInfo(realm.Build);
+    if (!buildInfo)
+    {
+        SendAuthResponseError(ERROR_BAD_VERSION);
+        TC_LOG_ERROR("network", "WorldSocket::HandleAuthSession: Missing auth seed for realm build %u (%s).", realm.Build, GetRemoteIpAddress().to_string().c_str());
+        DelayedCloseSocket();
+        return;
+    }
+
     AccountInfo account(result->Fetch());
 
     // For hook purposes, we get Remoteaddress at this point.
@@ -679,9 +685,9 @@ void WorldSocket::HandleAuthSessionCallback(std::shared_ptr<WorldPackets::Auth::
     SHA256Hash digestKeyHash;
     digestKeyHash.UpdateData(account.Game.KeyData.data(), account.Game.KeyData.size());
     if (account.Game.OS == "Wn64")
-        digestKeyHash.UpdateData(ClientTypeSeed_Wn64, 16);
+        digestKeyHash.UpdateData(buildInfo->Win64AuthSeed.data(), buildInfo->Win64AuthSeed.size());
     else if (account.Game.OS == "Mc64")
-        digestKeyHash.UpdateData(ClientTypeSeed_Mc64, 16);
+        digestKeyHash.UpdateData(buildInfo->Mac64AuthSeed.data(), buildInfo->Mac64AuthSeed.size());
 
     digestKeyHash.Finalize();
 
diff --git a/src/server/shared/Realm/RealmList.cpp b/src/server/shared/Realm/RealmList.cpp
index 8bc4726c17d..4b1d1dc2d8c 100644
--- a/src/server/shared/Realm/RealmList.cpp
+++ b/src/server/shared/Realm/RealmList.cpp
@@ -56,6 +56,7 @@ void RealmList::Initialize(Trinity::Asio::IoContext& ioContext, uint32 updateInt
     _updateTimer = Trinity::make_unique<Trinity::Asio::DeadlineTimer>(ioContext);
     _resolver = Trinity::make_unique<boost::asio::ip::tcp::resolver>(ioContext);
 
+    LoadBuildInfo();
     // Get the content of the realmlist table in the database
     UpdateRealms(boost::system::error_code());
 }
@@ -65,6 +66,38 @@ void RealmList::Close()
     _updateTimer->cancel();
 }
 
+void RealmList::LoadBuildInfo()
+{
+    //                                                              0             1              2              3      4              5              6
+    if (QueryResult result = LoginDatabase.Query("SELECT majorVersion, minorVersion, bugfixVersion, hotfixVersion, build, win64AuthSeed, mac64AuthSeed FROM build_info ORDER BY build ASC"))
+    {
+        do
+        {
+            Field* fields = result->Fetch();
+            _builds.emplace_back();
+            RealmBuildInfo& build = _builds.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::copy(hotfixVersion.begin(), hotfixVersion.end(), build.HotfixVersion.begin());
+            else
+                std::fill(hotfixVersion.begin(), hotfixVersion.end(), '\0');
+
+            build.Build = fields[4].GetUInt32();
+            std::string win64AuthSeedHexStr = fields[5].GetString();
+            if (win64AuthSeedHexStr.length() == build.Win64AuthSeed.size() * 2)
+                HexStrToByteArray(win64AuthSeedHexStr, build.Win64AuthSeed.data());
+
+            std::string mac64AuthSeedHexStr = fields[6].GetString();
+            if (mac64AuthSeedHexStr.length() == build.Mac64AuthSeed.size() * 2)
+                HexStrToByteArray(mac64AuthSeedHexStr, build.Mac64AuthSeed.data());
+
+        } while (result->NextRow());
+    }
+}
+
 void RealmList::UpdateRealm(Realm& realm, Battlenet::RealmHandle const& id, uint32 build, std::string const& name,
     boost::asio::ip::address&& address, boost::asio::ip::address&& localAddr, boost::asio::ip::address&& localSubmask,
     uint16 port, uint8 icon, RealmFlags flag, uint8 timezone, AccountTypes allowedSecurityLevel,
@@ -204,37 +237,9 @@ Realm const* RealmList::GetRealm(Battlenet::RealmHandle const& id) const
     return NULL;
 }
 
-// List of client builds for verbose version info in realmlist packet
-static RealmBuildInfo const ClientBuilds[] =
-{
-    { 32722, 8, 2, 5, ' ' },
-    { 32638, 8, 2, 5, ' ' },
-    { 32580, 8, 2, 5, ' ' },
-    { 32494, 8, 2, 5, ' ' },
-    { 28938, 8, 1, 5, ' ' },
-    { 21355, 6, 2, 4, ' ' },
-    { 20726, 6, 2, 3, ' ' },
-    { 20574, 6, 2, 2, 'a' },
-    { 20490, 6, 2, 2, 'a' },
-    { 15595, 4, 3, 4, ' ' },
-    { 14545, 4, 2, 2, ' ' },
-    { 13623, 4, 0, 6, 'a' },
-    { 13930, 3, 3, 5, 'a' },                                  // 3.3.5a China Mainland build
-    { 12340, 3, 3, 5, 'a' },
-    { 11723, 3, 3, 3, 'a' },
-    { 11403, 3, 3, 2, ' ' },
-    { 11159, 3, 3, 0, 'a' },
-    { 10505, 3, 2, 2, 'a' },
-    { 9947,  3, 1, 3, ' ' },
-    { 8606,  2, 4, 3, ' ' },
-    { 6141,  1, 12, 3, ' ' },
-    { 6005,  1, 12, 2, ' ' },
-    { 5875,  1, 12, 1, ' ' },
-};
-
 RealmBuildInfo const* RealmList::GetBuildInfo(uint32 build) const
 {
-    for (RealmBuildInfo const& clientBuild : ClientBuilds)
+    for (RealmBuildInfo const& clientBuild : _builds)
         if (clientBuild.Build == build)
             return &clientBuild;
 
@@ -243,11 +248,11 @@ RealmBuildInfo const* RealmList::GetBuildInfo(uint32 build) const
 
 uint32 RealmList::GetMinorMajorBugfixVersionForBuild(uint32 build) const
 {
-    RealmBuildInfo const* buildInfo = std::lower_bound(std::begin(ClientBuilds), std::end(ClientBuilds), build, [](RealmBuildInfo const& buildInfo, uint32 value)
+    auto buildInfo = std::lower_bound(_builds.begin(), _builds.end(), build, [](RealmBuildInfo const& buildInfo, uint32 value)
     {
         return buildInfo.Build < value;
     });
-    return buildInfo != std::end(ClientBuilds) ? (buildInfo->MajorVersion * 10000 + buildInfo->MinorVersion * 100 + buildInfo->BugfixVersion) : 0;
+    return buildInfo != _builds.end() ? (buildInfo->MajorVersion * 10000 + buildInfo->MinorVersion * 100 + buildInfo->BugfixVersion) : 0;
 }
 
 void RealmList::WriteSubRegions(bgs::protocol::game_utilities::v1::GetAllValuesForAttributeResponse* response) const
diff --git a/src/server/shared/Realm/RealmList.h b/src/server/shared/Realm/RealmList.h
index da1a6b2c4e8..7f99b618e96 100644
--- a/src/server/shared/Realm/RealmList.h
+++ b/src/server/shared/Realm/RealmList.h
@@ -21,6 +21,7 @@
 
 #include "Define.h"
 #include "Realm.h"
+#include <array>
 #include <map>
 #include <vector>
 #include <unordered_set>
@@ -31,7 +32,9 @@ struct RealmBuildInfo
     uint32 MajorVersion;
     uint32 MinorVersion;
     uint32 BugfixVersion;
-    uint32 HotfixVersion;
+    std::array<char, 4> HotfixVersion;
+    std::array<uint8, 16> Win64AuthSeed;
+    std::array<uint8, 16> Mac64AuthSeed;
 };
 
 namespace boost
@@ -102,11 +105,13 @@ public:
 private:
     RealmList();
 
+    void LoadBuildInfo();
     void UpdateRealms(boost::system::error_code const& error);
     void UpdateRealm(Realm& realm, Battlenet::RealmHandle const& id, uint32 build, std::string const& name,
         boost::asio::ip::address&& address, boost::asio::ip::address&& localAddr, boost::asio::ip::address&& localSubmask,
         uint16 port, uint8 icon, RealmFlags flag, uint8 timezone, AccountTypes allowedSecurityLevel, float population);
 
+    std::vector<RealmBuildInfo> _builds;
     std::unique_ptr<boost::shared_mutex> _realmsMutex;
     RealmMap _realms;
     std::unordered_set<std::string> _subRegions;