authenticaction, registration, login

src/main/kotlin/com/aitrainer/api/service/ServiceBeans.kt

@@ -0,0 +1,19 @@
+package com.aitrainer.api.service
+
+import org.springframework.context.annotation.Bean
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder
+import org.springframework.security.crypto.password.PasswordEncoder
+import org.springframework.stereotype.Component
+
+/*
+ Commonly used Beans
+ */
+
+@Component
+class ServiceBeans {
+
+    @Bean
+    fun passwordEncoder(): PasswordEncoder {
+        return BCryptPasswordEncoder()
+    }
+}

src/main/kotlin/com/aitrainer/api/service/UserDetailsServiceImpl.kt

@@ -0,0 +1,34 @@
+package com.aitrainer.api.service
+
+import com.aitrainer.api.model.Customer
+import com.aitrainer.api.repository.CustomerRepository
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.security.core.GrantedAuthority
+import org.springframework.security.core.userdetails.User
+import org.springframework.security.core.userdetails.UserDetails
+import org.springframework.security.core.userdetails.UserDetailsService
+import org.springframework.security.core.authority.SimpleGrantedAuthority
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+import kotlin.collections.HashSet
+
+@Service
+class UserDetailsServiceImpl: UserDetailsService {
+
+    @Autowired
+    private lateinit var customerRepository: CustomerRepository
+
+    @Override
+    @Transactional(readOnly = true)
+    override fun loadUserByUsername(username: String?): UserDetails {
+        val customer: Customer? = customerRepository.findByEmail(username)
+
+        val grantedAuthorities = HashSet<GrantedAuthority>()
+        grantedAuthorities.add(SimpleGrantedAuthority("user"))
+
+        if (customer != null) {
+                return User(customer.email, customer.password, grantedAuthorities)
+        } else {throw Exception("User does not exist")}
+
+    }
+}