Fixed issue #1478

CHANGES_NEXT_RELEASE

@@ -15,4 +15,4 @@ Fixed issues:
   * #1458 - Supporting system timestamps (createdAt/modifiedAt) in q
   * #1451 - Bug fix - removed a trailing ampersand from the URI for the connection to mongodb
   * #1418 - Performance - Faster startup when there are GeoProperties in DB
-
+  * #1478 - Fixed issue

src/lib/orionld/common/orionldState.h

@@ -265,6 +265,18 @@ typedef struct OrionldStateIn
 
 
 
+// -----------------------------------------------------------------------------
+//
+// OrionldStateDistOp - distributed request information
+//
+typedef struct OrionldStateDistOp
+{
+  uint32_t requests;
+  uint32_t e404;
+} OrionldStateDistOp;
+
+
+
 // -----------------------------------------------------------------------------
 //
 // OrionldMongoC -
@@ -441,8 +453,9 @@ typedef struct OrionldConnectionState
   KjNode*                 geoPropertyNodes;           // object with "entityId": { <GeoProperty value> }, one per entity (for Query Entities
   bool                    geoPropertyFromProjection;  // It was added to the projection but needs to be removed
 
-  OrionldStateOut out;
-  OrionldStateIn  in;
+  OrionldStateOut     out;
+  OrionldStateIn      in;
+  OrionldStateDistOp  distOp;
 
   // NGSI-LD Scope (or NGSIv2 ServicePath)
   char* scopeV[10];

src/lib/orionld/forwarding/distOpRequests.cpp

@@ -139,7 +139,10 @@ DistOp* distOpRequests(char* entityId, char* entityType, DistOpType operation, K
     if ((distOpP->regP != NULL) && (distOpP->error == false))
     {
       if (distOpSend(distOpP, dateHeader, xff) == 0)
+      {
         distOpP->error = false;
+        orionldState.distOp.requests += 1;
+     }
       else
         distOpP->error = true;
 

src/lib/orionld/forwarding/distOpResponses.cpp

@@ -273,6 +273,9 @@ void entityResponseAccumulate(DistOp* distOpP, KjNode* responseBody, KjNode* suc
     const char* title   = (titleP  != NULL)? titleP->value.s : "unspecified error from remote provider";
     const char* detail  = (detailP != NULL)? detailP->value.s : NULL;
 
+    if (httpResponseCode == 404)
+      orionldState.distOp.e404 += 1;
+
     distOpFailure(responseBody, distOpP, title, detail, httpResponseCode, NULL);
   }
   else if (httpResponseCode == 0)

src/lib/orionld/serviceRoutines/orionldPatchAttribute.cpp

@@ -353,19 +353,25 @@ bool orionldPatchAttribute(void)
   }
 
   KjNode* incomingP = NULL;
-  if ((orionldState.requestTree != NULL) && (orionldState.requestTree->value.firstChildP != NULL))  // Attribute left for local request
+  //
+  // If the entity is not found locally and all distributed requests give 404
+  // then it's a 404
+  //
+  bool notFound = ((dbEntityP == NULL) && (orionldState.distOp.requests == orionldState.distOp.e404));
+
+  if ((notFound == false) && (orionldState.requestTree != NULL) && (orionldState.requestTree->value.firstChildP != NULL))  // Attribute left for local request
   {
     //
     // First of all, make sure the attribute exists
     //
-    KjNode* dbAttrsP = kjLookup(dbEntityP, "attrs");
+    KjNode* dbAttrsP = (dbEntityP != NULL)? kjLookup(dbEntityP, "attrs") : NULL;
     if ((dbAttrsP == NULL) && (orionldState.distributed == false))  // Entity without attributes
     {
       orionldError(OrionldResourceNotFound, "Entity/Attribute Not Found", entityId, 404);
       return false;
     }
 
-    KjNode* dbAttrP = kjLookup(dbAttrsP, longAttrNameEq);
+    KjNode* dbAttrP = (dbAttrsP != NULL)? kjLookup(dbAttrsP, longAttrNameEq) : NULL;
     if ((dbAttrP == NULL) && (orionldState.distributed == false))
     {
       orionldError(OrionldResourceNotFound, "Entity/Attribute Not Found", entityId, 404);
@@ -453,6 +459,12 @@ bool orionldPatchAttribute(void)
     }
   }
 
+  if (notFound == true)
+  {
+    orionldError(OrionldResourceNotFound, "Entity/Attribute Not Found", entityId, 404);
+    return false;
+  }
+
   responseFix(responseBody, DoUpdateAttrs, 204, entityId);
 
   if ((troe == true) && (incomingP != NULL))

test/functionalTest/cases/0000_ngsild/ngsild_issue_1478-without-registration.test

@@ -0,0 +1,89 @@
+# Copyright 2023 FIWARE Foundation e.V.
+#
+# This file is part of Orion-LD Context Broker.
+#
+# Orion-LD Context Broker is free software: you can redistribute it and/or
+# modify it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# Orion-LD Context Broker is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero
+# General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with Orion-LD Context Broker. If not, see http://www.gnu.org/licenses/.
+#
+# For those usages not covered by this license please contact with
+# orionld at fiware dot org
+
+# VALGRIND_READY - to mark the test ready for valgrindTestSuite.sh
+
+--NAME--
+test issue 1478
+
+--SHELL-INIT--
+dbInit CB openiot
+orionldStart CB -experimental -multiservice -forwarding
+
+--SHELL--
+
+#
+# 01. Create an entity according to issue 1478
+# 02. Attempt to PATCH an attribute of an entity that does not exist
+#
+
+echo "01. Create an entity according to issue 1478"
+echo "============================================"
+payload='{
+    "id": "urn:ngsi-ld:Building:farm001",
+    "type": "Building",
+    "name": {
+        "type": "Property",
+        "value": "Victory Farm"
+    }
+}'
+orionCurl --url /ngsi-ld/v1/entities/ --payload "$payload" -H "NGSILD-Tenant: openiot"
+echo
+echo
+
+echo "02. Attempt to PATCH an attribute of an entity that does not exist"
+echo "=================================================================="
+payload='{
+        "type": "Property", 
+        "value": " " 
+}'
+orionCurl --url /ngsi-ld/v1/entities/urn:ngsi-ld:Filling:001/attrs/remove -X PATCH --payload "$payload" -H "NGSILD-Tenant: openiot"
+echo
+echo
+
+
+--REGEXPECT--
+01. Create an entity according to issue 1478
+============================================
+HTTP/1.1 201 Created
+Content-Length: 0
+Date: REGEX(.*)
+Location: /ngsi-ld/v1/entities/urn:ngsi-ld:Building:farm001
+NGSILD-Tenant: openiot
+
+
+
+02. Attempt to PATCH an attribute of an entity that does not exist
+==================================================================
+HTTP/1.1 404 Not Found
+Content-Length: 135
+Content-Type: application/json
+Date: REGEX(.*)
+
+{
+    "detail": "urn:ngsi-ld:Filling:001",
+    "title": "Entity/Attribute Not Found",
+    "type": "https://uri.etsi.org/ngsi-ld/errors/ResourceNotFound"
+}
+
+
+--TEARDOWN--
+brokerStop CB
+dbDrop CB openiot