feat: Embedded chat window supports userVariables configuration. (#20983)

web/app/components/base/chat/utils.ts

@@ -32,7 +32,8 @@ async function getProcessedInputsFromUrlParams(): Promise<Record<string, any>> {
   const entriesArray = Array.from(urlParams.entries())
   await Promise.all(
     entriesArray.map(async ([key, value]) => {
-      if (!key.startsWith('sys.'))
+      const prefixArray = ['sys.', 'user.']
+      if (!prefixArray.some(prefix => key.startsWith(prefix)))
         inputs[key] = await decodeBase64AndDecompress(decodeURIComponent(value))
     }),
   )
@@ -52,6 +53,19 @@ async function getProcessedSystemVariablesFromUrlParams(): Promise<Record<string
   return systemVariables
 }
 
+async function getProcessedUserVariablesFromUrlParams(): Promise<Record<string, any>> {
+  const urlParams = new URLSearchParams(window.location.search)
+  const userVariables: Record<string, any> = {}
+  const entriesArray = Array.from(urlParams.entries())
+  await Promise.all(
+    entriesArray.map(async ([key, value]) => {
+      if (key.startsWith('user.'))
+        userVariables[key.slice(5)] = await decodeBase64AndDecompress(decodeURIComponent(value))
+    }),
+  )
+  return userVariables
+}
+
 function isValidGeneratedAnswer(item?: ChatItem | ChatItemInTree): boolean {
   return !!item && item.isAnswer && !item.id.startsWith('answer-placeholder-') && !item.isOpeningStatement
 }
@@ -198,6 +212,7 @@ export {
   getRawInputsFromUrlParams,
   getProcessedInputsFromUrlParams,
   getProcessedSystemVariablesFromUrlParams,
+  getProcessedUserVariablesFromUrlParams,
   isValidGeneratedAnswer,
   getLastAnswer,
   buildChatItemTree,