fix(file): bun issues with new file creation (#3582)

* fix(files): new file bun error

* update constant

* fix types

apps/sim/app/api/files/upload/route.ts

@@ -46,9 +46,10 @@ export async function POST(request: NextRequest) {
 
     const formData = await request.formData()
 
-    const files = formData.getAll('file') as File[]
+    const rawFiles = formData.getAll('file')
+    const files = rawFiles.filter((f): f is File => f instanceof File)
 
-    if (!files || files.length === 0) {
+    if (files.length === 0) {
       throw new InvalidRequestError('No files provided')
     }
 
@@ -74,6 +75,9 @@ export async function POST(request: NextRequest) {
 
     for (const file of files) {
       const originalName = file.name
+      if (!originalName) {
+        throw new InvalidRequestError('File name is missing')
+      }
 
       if (!validateFileExtension(originalName)) {
         const extension = originalName.split('.').pop()?.toLowerCase() || 'unknown'

apps/sim/app/api/workspaces/[id]/files/route.ts

@@ -87,32 +87,36 @@ export async function POST(request: NextRequest, { params }: { params: Promise<{
     }
 
     const formData = await request.formData()
-    const file = formData.get('file') as File
+    const rawFile = formData.get('file')
 
-    if (!file) {
+    if (!rawFile || !(rawFile instanceof File)) {
       return NextResponse.json({ error: 'No file provided' }, { status: 400 })
     }
 
-    // Validate file size (100MB limit)
+    const fileName = rawFile.name
+    if (!fileName) {
+      return NextResponse.json({ error: 'File name is missing' }, { status: 400 })
+    }
+
     const maxSize = 100 * 1024 * 1024
-    if (file.size > maxSize) {
+    if (rawFile.size > maxSize) {
       return NextResponse.json(
-        { error: `File size exceeds 100MB limit (${(file.size / (1024 * 1024)).toFixed(2)}MB)` },
+        { error: `File size exceeds 100MB limit (${(rawFile.size / (1024 * 1024)).toFixed(2)}MB)` },
         { status: 400 }
       )
     }
 
-    const buffer = Buffer.from(await file.arrayBuffer())
+    const buffer = Buffer.from(await rawFile.arrayBuffer())
 
     const userFile = await uploadWorkspaceFile(
       workspaceId,
       session.user.id,
       buffer,
-      file.name,
-      file.type || 'application/octet-stream'
+      fileName,
+      rawFile.type || 'application/octet-stream'
     )
 
-    logger.info(`[${requestId}] Uploaded workspace file: ${file.name}`)
+    logger.info(`[${requestId}] Uploaded workspace file: ${fileName}`)
 
     recordAudit({
       workspaceId,
@@ -122,8 +126,8 @@ export async function POST(request: NextRequest, { params }: { params: Promise<{
       action: AuditAction.FILE_UPLOADED,
       resourceType: AuditResourceType.FILE,
       resourceId: userFile.id,
-      resourceName: file.name,
-      description: `Uploaded file "${file.name}"`,
+      resourceName: fileName,
+      description: `Uploaded file "${fileName}"`,
       request,
     })
 

apps/sim/executor/constants.ts

@@ -439,7 +439,10 @@ export function isValidEnvVarName(name: string): boolean {
   return PATTERNS.ENV_VAR_NAME.test(name)
 }
 
-export function sanitizeFileName(fileName: string): string {
+export function sanitizeFileName(fileName: string | null | undefined): string {
+  if (!fileName || typeof fileName !== 'string') {
+    return 'untitled'
+  }
   return fileName.replace(/\s+/g, '-').replace(/[^a-zA-Z0-9.-]/g, '_')
 }