chore: helmet config cleanup

api/src/utils/parseHelmetConfig.ts

@@ -0,0 +1,33 @@
+import path from 'path'
+import fs from 'fs'
+
+export const getEnvCSPDirectives = (
+  HELMET_CSP_CONFIG_PATH: string | undefined
+) => {
+  let cspConfigJson = {
+    'script-src': ["'self'", "'unsafe-inline'"]
+  }
+
+  if (
+    typeof HELMET_CSP_CONFIG_PATH === 'string' &&
+    HELMET_CSP_CONFIG_PATH.length > 0
+  ) {
+    const cspConfigPath = path.join(process.cwd(), HELMET_CSP_CONFIG_PATH)
+
+    try {
+      let file = fs.readFileSync(cspConfigPath).toString()
+
+      try {
+        cspConfigJson = JSON.parse(file)
+      } catch (e) {
+        console.error(
+          'Parsing Content Security Policy JSON config failed. Make sure it is valid json'
+        )
+      }
+    } catch (e) {
+      console.error('Error reading HELMET CSP config file', e)
+    }
+  }
+
+  return cspConfigJson
+}