Merge pull request #5016 from node-red/5009-fix-env-context-access

Allow env var access to context

packages/node_modules/@node-red/runtime/lib/flows/Flow.js

@@ -719,6 +719,14 @@ class Flow {
         });
     }
 
+    getContext(scope) {
+        if (scope === 'flow') {
+            return this.context
+        } else if (scope === 'global') {
+            return context.get('global')
+        }
+    }
+
     dump() {
         console.log("==================")
         console.log(this.TYPE, this.id);

packages/node_modules/@node-red/runtime/lib/flows/Group.js

@@ -49,6 +49,14 @@ class Group {
         }
         return this.parent.getSetting(key);
     }
+
+    error(msg) {
+        this.parent.error(msg);
+    }
+
+    getContext(scope) {
+        return this.parent.getContext(scope);
+    }
 }
 
 module.exports = {

packages/node_modules/@node-red/runtime/lib/flows/util.js

@@ -100,7 +100,24 @@ async function evaluateEnvProperties(flow, env, credentials) {
             }
         } else if (type ==='jsonata') {
             pendingEvaluations.push(new Promise((resolve, _) => {
-                redUtil.evaluateNodeProperty(value, 'jsonata', {_flow: flow}, null, (err, result) => {
+                redUtil.evaluateNodeProperty(value, 'jsonata',{
+                    // Fake a node object to provide access to _flow and context
+                    _flow: flow,
+                    context: () => {
+                        return {
+                            flow: {
+                                get: (value, store, callback) => {
+                                    return flow.getContext('flow').get(value, store, callback)
+                                }
+                            },
+                            global: {
+                                get: (value, store, callback) => {
+                                    return flow.getContext('global').get(value, store, callback)
+                                }
+                            }
+                        }
+                    }
+                }, null, (err, result) => {
                     if (!err) {
                         if (typeof result  === 'object') {
                             result = { value: result, __clone__: true}