Implement fixed basic token authentication

tofhir-engine/src/main/scala/io/tofhir/engine/model/FhirSinkSettings.scala

@@ -76,3 +76,10 @@ case class BearerTokenAuthorizationSettings(clientId: String,
  * @param password Password for basic authentication
  */
 case class BasicAuthenticationSettings(username: String, password: String) extends IFhirRepositorySecuritySettings
+
+/**
+ * Security settings for FHIR API access via fixed token
+ *
+ * @param token The fixed token
+ */
+case class FixedTokenAuthenticationSettings(token: String) extends IFhirRepositorySecuritySettings

tofhir-engine/src/main/scala/io/tofhir/engine/util/FhirClientUtil.scala

@@ -2,7 +2,7 @@ package io.tofhir.engine.util
 
 import akka.actor.ActorSystem
 import io.onfhir.client.OnFhirNetworkClient
-import io.tofhir.engine.model.{BasicAuthenticationSettings, BearerTokenAuthorizationSettings, IFhirRepositorySecuritySettings}
+import io.tofhir.engine.model.{BasicAuthenticationSettings, BearerTokenAuthorizationSettings, FixedTokenAuthenticationSettings, IFhirRepositorySecuritySettings}
 
 object FhirClientUtil {
   /**
@@ -18,6 +18,7 @@ object FhirClientUtil {
         case BearerTokenAuthorizationSettings(clientId, clientSecret, requiredScopes, authzServerTokenEndpoint, clientAuthenticationMethod) =>
           client.withOpenIdBearerTokenAuthentication(clientId, clientSecret, requiredScopes, authzServerTokenEndpoint, clientAuthenticationMethod)
         case BasicAuthenticationSettings(username, password) => client.withBasicAuthentication(username, password)
+        case FixedTokenAuthenticationSettings(token) => client.withFixedBasicTokenAuthentication(token)
       }
       .getOrElse(client)
   }

tofhir-engine/src/main/scala/io/tofhir/engine/util/FhirMappingJobFormatter.scala

@@ -1,7 +1,7 @@
 package io.tofhir.engine.util
 
 import io.tofhir.engine.config.ErrorHandlingType
-import io.tofhir.engine.model.{BasicAuthenticationSettings, BearerTokenAuthorizationSettings, FhirMappingJob, FhirRepositorySinkSettings, FileSystemSinkSettings, FileSystemSource, FileSystemSourceSettings, KafkaSource, KafkaSourceSettings, LocalFhirTerminologyServiceSettings, SqlSource, SqlSourceSettings}
+import io.tofhir.engine.model.{BasicAuthenticationSettings, BearerTokenAuthorizationSettings, FhirMappingJob, FhirRepositorySinkSettings, FileSystemSinkSettings, FileSystemSource, FileSystemSourceSettings, FixedTokenAuthenticationSettings, KafkaSource, KafkaSourceSettings, LocalFhirTerminologyServiceSettings, SqlSource, SqlSourceSettings}
 import org.json4s.{Formats, ShortTypeHints}
 import org.json4s.ext.EnumNameSerializer
 import org.json4s.jackson.Serialization
@@ -33,6 +33,7 @@ object FhirMappingJobFormatter {
           // Authorization types
           classOf[BearerTokenAuthorizationSettings],
           classOf[BasicAuthenticationSettings],
+          classOf[FixedTokenAuthenticationSettings],
           //Terminology setvices
           classOf[LocalFhirTerminologyServiceSettings]
         ))) +

tofhir-server/src/main/resources/application.conf

@@ -66,7 +66,7 @@ fhir = {
   # For now, toFHIR can read definitions from a single FHIR endpoint.
   definitions-fhir-endpoint = "http://localhost:8081/fhir"
   fhir-endpoint-auth = {
-    # basic | token
+    # basic | token | fixed-token
     # If one of the auth methods is selected, its configurations must be provided as shown below.
     method = null
 
@@ -83,6 +83,9 @@ fhir = {
 #       scopes = []
 #       token-endpoint = "https://onauth.srdc.com.tr"
 #     }
+
+#    # fixed token configurations are used if the auth method is fixed-token
+#    fixed-token = "XXX"
   }
 
   # Path to the zip file or folder that includes the FHIR resource and data type profile definitions (FHIR StructureDefinition) to be served by toFHIR webserver so that mappings can be performed accordingly.

tofhir-server/src/main/scala/io/tofhir/server/fhir/FhirDefinitionsConfig.scala

@@ -24,7 +24,7 @@ class FhirDefinitionsConfig(fhirDefinitionsConfig: Config) {
   lazy val authTokenClientSecret: Option[String] = Try(fhirDefinitionsConfig.getString("fhir-endpoint-auth.token.client-secret")).toOption
   lazy val authTokenScopeList: Option[Seq[String]] = Try(fhirDefinitionsConfig.getStringList("fhir-endpoint-auth.token.scopes").asScala.toSeq).toOption
   lazy val authTokenEndpoint: Option[String] = Try(fhirDefinitionsConfig.getString("fhir-endpoint-auth.token.token-endpoint")).toOption
-
+  lazy val authFixedToken: Option[String] = Try(fhirDefinitionsConfig.getString("fhir-endpoint-auth.fixed-token")).toOption
   /** Path to the zip file or folder that includes the FHIR resource and data type profile definitions (FHIR StructureDefinition) to be served by toFHIR webserver so that mappings can be performed accordingly. */
   lazy val profilesPath: Option[String] = Try(fhirDefinitionsConfig.getString("profiles-path")).toOption
 

tofhir-server/src/main/scala/io/tofhir/server/fhir/FhirEndpointResourceReader.scala

@@ -3,7 +3,7 @@ package io.tofhir.server.fhir
 import io.onfhir.api.{FHIR_FOUNDATION_RESOURCES, Resource}
 import io.onfhir.client.OnFhirNetworkClient
 import io.onfhir.config.{FSConfigReader, IFhirConfigReader}
-import io.tofhir.engine.model.{BasicAuthenticationSettings, BearerTokenAuthorizationSettings}
+import io.tofhir.engine.model.{BasicAuthenticationSettings, BearerTokenAuthorizationSettings, FixedTokenAuthenticationSettings}
 import io.tofhir.engine.util.FhirClientUtil
 import io.tofhir.engine.Execution.actorSystem
 import actorSystem.dispatcher
@@ -43,6 +43,12 @@ class FhirEndpointResourceReader(fhirDefinitionsConfig: FhirDefinitionsConfig) e
           }
           FhirClientUtil.createOnFhirClient(fhirDefinitionsConfig.definitionsFHIREndpoint.get,
             Some(BearerTokenAuthorizationSettings(fhirDefinitionsConfig.authTokenClientId.get, fhirDefinitionsConfig.authTokenClientSecret.get, fhirDefinitionsConfig.authTokenScopeList.get, fhirDefinitionsConfig.authTokenEndpoint.get)))
+        case FhirAuthMethod.FIXED_TOKEN =>
+          if (fhirDefinitionsConfig.authFixedToken.isEmpty) {
+            throw new IllegalArgumentException("For fixed token authentication, a token must be provided!")
+          }
+          FhirClientUtil.createOnFhirClient(fhirDefinitionsConfig.definitionsFHIREndpoint.get,
+            Some(FixedTokenAuthenticationSettings(fhirDefinitionsConfig.authFixedToken.get)))
       }
     }
   }

tofhir-server/src/main/scala/io/tofhir/server/fhir/package.scala

@@ -5,5 +5,6 @@ package object fhir {
     type FhirAuthMethod = Value
     final val BASIC = Value("basic")
     final val BEARER_TOKEN = Value("token")
+    final val FIXED_TOKEN = Value("fixed-token")
   }
 }

tofhir-server/src/test/resources/application.conf

@@ -62,7 +62,7 @@ fhir = {
   # For now, toFHIR can read definitions from a single FHIR endpoint.
   definitions-fhir-endpoint = null
   fhir-endpoint-auth = {
-    # basic | token
+    # basic | token | fixed-token
     # If one of the auth methods is selected, its configurations must be provided as shown below.
     method = null
 
@@ -79,6 +79,9 @@ fhir = {
 #       scopes = []
 #       token-endpoint = "https://onauth.srdc.com.tr"
 #     }
+
+#    # fixed token configurations are used if the auth method is fixed-token
+#    fixed-token = "XXX"
   }
 
   # Path to the zip file or folder that includes the FHIR resource and data type profile definitions (FHIR StructureDefinition) to be served by toFHIR webserver so that mappings can be performed accordingly.