Refresh only last login time when necessary (avoid hammering the db, ref #420)

src/libs/services/auth/impl/AuthServiceBase.cpp

@@ -19,6 +19,7 @@
 
 #include "AuthServiceBase.hpp"
 
+#include <cstdlib>
 #include "database/Db.hpp"
 #include "database/Session.hpp"
 #include "database/User.hpp"
@@ -32,8 +33,7 @@ namespace Auth
         : _db{ db }
     {}
 
-	UserId
-	AuthServiceBase::getOrCreateUser(std::string_view loginName)
+    UserId AuthServiceBase::getOrCreateUser(std::string_view loginName)
     {
         Session& session{ getDbSession() };
         auto transaction{ session.createWriteTransaction() };
@@ -52,19 +52,31 @@ namespace Auth
         return user->getId();
     }
 
-	void
-	AuthServiceBase::onUserAuthenticated(UserId userId)
+    void AuthServiceBase::onUserAuthenticated(UserId userId)
     {
         Session& session{ getDbSession() };
-		auto transaction {session.createWriteTransaction()};
 
-		User::pointer user {User::find(session, userId)};
-		if (user)
-			user.modify()->setLastLogin(Wt::WDateTime::currentDateTime());
+        // Update last login only if relevant (avoid hammering write accesses to the database)
+        {
+            auto transaction{ session.createReadTransaction() };
+
+            const User::pointer user{ User::find(session, userId) };
+            if (!user)
+                return;
+
+            if (std::abs(Wt::WDateTime::currentDateTime().secsTo(user->getLastLogin())) < 60)
+                return;
         }
 
-	Session&
-	AuthServiceBase::getDbSession()
+        {
+            auto transaction{ session.createWriteTransaction() };
+
+            if (User::pointer user{ User::find(session, userId) })
+                user.modify()->setLastLogin(Wt::WDateTime::currentDateTime());
+        }
+    }
+
+    Session& AuthServiceBase::getDbSession()
     {
         return _db.getTLSSession();
     }

src/libs/services/auth/impl/internal/InternalPasswordService.cpp

@@ -41,8 +41,7 @@ namespace Auth
         _validator.setMinimumMatchLength(3);
     }
 
-	bool
-	InternalPasswordService::checkUserPassword(std::string_view loginName, std::string_view password)
+    bool InternalPasswordService::checkUserPassword(std::string_view loginName, std::string_view password)
     {
         LMS_LOG(AUTH, DEBUG, "Checking internal password for user '" << loginName << "'");
 
@@ -73,14 +72,12 @@ namespace Auth
         return _hashFunc.verify(std::string{ password }, std::string{ passwordHash.salt }, std::string{ passwordHash.hash });
     }
 
-	bool
-	InternalPasswordService::canSetPasswords() const
+    bool InternalPasswordService::canSetPasswords() const
     {
         return true;
     }
 
-	IPasswordService::PasswordAcceptabilityResult
-	InternalPasswordService::checkPasswordAcceptability(std::string_view password, const PasswordValidationContext& context) const
+    IPasswordService::PasswordAcceptabilityResult InternalPasswordService::checkPasswordAcceptability(std::string_view password, const PasswordValidationContext& context) const
     {
         switch (context.userType)
         {
@@ -94,8 +91,7 @@ namespace Auth
         throw NotImplementedException{};
     }
 
-	void
-	InternalPasswordService::setPassword(Database::UserId userId, std::string_view newPassword)
+    void InternalPasswordService::setPassword(Database::UserId userId, std::string_view newPassword)
     {
         const Database::User::PasswordHash passwordHash{ hashPassword(newPassword) };
 
@@ -120,8 +116,7 @@ namespace Auth
         getAuthTokenService().clearAuthTokens(userId);
     }
 
-	Database::User::PasswordHash
-	InternalPasswordService::hashPassword(std::string_view password) const
+    Database::User::PasswordHash InternalPasswordService::hashPassword(std::string_view password) const
     {
         const std::string salt{ Wt::WRandom::generateId(32) };