Adds JWT-based auth with refresh tokens

src/main/kotlin/net/halfbinary/scavengerhuntapi/error/ExceptionHandler.kt

@@ -4,6 +4,7 @@ import net.halfbinary.scavengerhuntapi.error.exception.InvalidEmailException
 import net.halfbinary.scavengerhuntapi.error.exception.LoginFailedException
 import net.halfbinary.scavengerhuntapi.error.exception.NotFoundException
 import net.halfbinary.scavengerhuntapi.error.exception.PreexistingAccountException
+import org.slf4j.LoggerFactory
 import org.springframework.http.HttpStatus
 import org.springframework.http.converter.HttpMessageNotReadableException
 import org.springframework.validation.FieldError
@@ -15,7 +16,9 @@ import org.springframework.web.bind.annotation.RestControllerAdvice
 
 @RestControllerAdvice
 class ExceptionHandler {
-
+    companion object {
+        private val log = LoggerFactory.getLogger(net.halfbinary.scavengerhuntapi.error.ExceptionHandler::class.java)
+    }
     @ExceptionHandler(PreexistingAccountException::class)
     @ResponseStatus(HttpStatus.CONFLICT)
     fun preexistingAccountException(e: PreexistingAccountException): String? {
@@ -42,8 +45,16 @@ class ExceptionHandler {
 
     @ExceptionHandler(HttpMessageNotReadableException::class)
     @ResponseStatus(HttpStatus.BAD_REQUEST)
-    fun httpMessageNotReadableException(e: HttpMessageNotReadableException): String? {
-        return e.message
+    fun httpMessageNotReadableException(e: HttpMessageNotReadableException): Map<String, String?> {
+        if (e.message?.contains("body is missing")?:false) {
+            return simpleMap("body","Body is missing")
+        }
+        if (e.message?.contains("parameter")?:false) {
+            val missingParameter = e.message?.split("parameter ")[1]
+            return simpleMap(missingParameter?:"","Missing required parameter $missingParameter")
+        }
+        log.debug("JSON parsing issue", e)
+        return simpleMap("body", "Parsing error")
     }
 
     @ExceptionHandler(MethodArgumentNotValidException::class)
@@ -56,4 +67,8 @@ class ExceptionHandler {
             )
         }
     }
+
+    private fun simpleMap(key: String, value: String?): Map<String, String?> {
+        return mapOf(Pair(key, value))
+    }
 }

src/main/kotlin/net/halfbinary/scavengerhuntapi/error/exception/ExpiredRefreshTokenException.kt

@@ -0,0 +1,5 @@
+package net.halfbinary.scavengerhuntapi.error.exception
+
+import net.halfbinary.scavengerhuntapi.model.RefreshId
+
+class ExpiredRefreshTokenException(token: RefreshId): RuntimeException("The refresh token $token is expired.")

src/main/kotlin/net/halfbinary/scavengerhuntapi/error/exception/InvalidRefreshTokenException.kt

@@ -0,0 +1,5 @@
+package net.halfbinary.scavengerhuntapi.error.exception
+
+import net.halfbinary.scavengerhuntapi.model.RefreshId
+
+class InvalidRefreshTokenException(token: RefreshId): RuntimeException("The refresh token $token is not valid.")