improvement(integrations): expose vanta upload mime type in block and align fileContent bound with the 100MB cap

Author: waleedlatif1

apps/sim/blocks/blocks/vanta.ts

@@ -184,6 +184,14 @@ export const VantaBlock: BlockConfig<ToolResponse> = {
       condition: { field: 'operation', value: 'upload_document_file' },
       mode: 'advanced',
     },
+    {
+      id: 'uploadMimeType',
+      title: 'MIME Type',
+      type: 'short-input',
+      placeholder: 'e.g., application/pdf (used when the file has no type of its own)',
+      condition: { field: 'operation', value: 'upload_document_file' },
+      mode: 'advanced',
+    },
     {
       id: 'uploadDescription',
       title: 'Description',
@@ -820,6 +828,7 @@ export const VantaBlock: BlockConfig<ToolResponse> = {
             const normalizedFile = normalizeFileInput(rest.file, { single: true })
             if (normalizedFile) result.file = normalizedFile
             result.fileName = optionalString(rest.uploadFileName)
+            result.mimeType = optionalString(rest.uploadMimeType)
             result.description = optionalString(rest.uploadDescription)
             result.effectiveAtDate = optionalString(rest.effectiveAtDate)
             break
@@ -882,6 +891,10 @@ export const VantaBlock: BlockConfig<ToolResponse> = {
     uploadedFileId: { type: 'string', description: 'Uploaded file ID' },
     file: { type: 'json', description: 'Evidence file to upload' },
     uploadFileName: { type: 'string', description: 'Optional file name override' },
+    uploadMimeType: {
+      type: 'string',
+      description: 'MIME type override used when the uploaded content has no type of its own',
+    },
     uploadDescription: { type: 'string', description: 'Description of the uploaded evidence' },
     effectiveAtDate: { type: 'string', description: 'Effective date of the document (ISO 8601)' },
     frameworkMatchesAny: { type: 'string', description: 'Comma-separated framework ID filters' },

apps/sim/lib/api/contracts/tools/vanta.ts

@@ -673,12 +673,16 @@ export const vantaQueryContract = defineRouteContract({
   response: { mode: 'json', schema: vantaQueryResponseSchema },
 })
 
+const VANTA_MAX_UPLOAD_BYTES = 100 * 1024 * 1024
+/** Base64 length of the largest allowed upload (4 chars per 3 bytes). */
+const VANTA_MAX_UPLOAD_BASE64_LENGTH = Math.ceil(VANTA_MAX_UPLOAD_BYTES / 3) * 4
+
 export const vantaUploadBodySchema = vantaBaseBodySchema.extend({
   documentId: requiredId('Document ID'),
   file: FileInputSchema.optional().nullable(),
   fileContent: z
     .string()
-    .max(140 * 1024 * 1024, 'fileContent exceeds the 100MB upload limit')
+    .max(VANTA_MAX_UPLOAD_BASE64_LENGTH, 'fileContent exceeds the 100MB upload limit')
     .nullish(),
   fileName: z.string().nullish(),
   mimeType: z.string().nullish(),