@juspay/neurolink
Version:
Universal AI Development Platform with working MCP integration, multi-provider support, voice (TTS/STT/realtime), and professional CLI. 58+ external MCP servers discoverable, multimodal file processing, RAG pipelines. Build, test, and deploy AI applicatio
122 lines (121 loc) • 4.09 kB
JavaScript
const OPAQUE_MIMETYPE = "application/octet-stream";
/**
* Normalize a caller-provided mimetype hint: strip any `;charset=...`
* parameter, lowercase, trim. Returns undefined for empty strings or for
* the opaque `application/octet-stream` sentinel so downstream code can
* treat the hint as absent instead of trusting it verbatim.
*/
export function normalizeMimeHint(raw) {
if (!raw) {
return undefined;
}
const cleaned = raw.split(";")[0].trim().toLowerCase();
if (!cleaned || cleaned === OPAQUE_MIMETYPE) {
return undefined;
}
return cleaned;
}
/**
* Map a normalized mimetype hint to a NeuroLink FileType. Returns null when
* the mimetype is unknown or too generic to classify confidently.
*/
export function mimeHintToFileType(mimetype) {
const exact = {
"text/csv": "csv",
"application/csv": "csv",
"image/svg+xml": "svg",
"application/pdf": "pdf",
"application/json": "text",
"application/xml": "text",
"text/xml": "text",
"application/yaml": "text",
"application/x-yaml": "text",
"text/yaml": "text",
"application/javascript": "text",
"application/typescript": "text",
"application/zip": "archive",
"application/x-tar": "archive",
"application/gzip": "archive",
"application/x-gzip": "archive",
"application/x-7z-compressed": "archive",
"application/vnd.rar": "archive",
"application/vnd.openxmlformats-officedocument.wordprocessingml.document": "docx",
"application/vnd.openxmlformats-officedocument.presentationml.presentation": "pptx",
"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": "xlsx",
};
if (exact[mimetype]) {
return exact[mimetype];
}
if (mimetype.startsWith("text/")) {
return "text";
}
if (mimetype.startsWith("image/")) {
return "image";
}
if (mimetype.startsWith("audio/")) {
return "audio";
}
if (mimetype.startsWith("video/")) {
return "video";
}
return null;
}
/**
* Map a normalized mimetype hint to the canonical file extension (without
* leading dot). Returns "" when the mimetype is unknown — caller should
* then fall back to magic-byte detection.
*/
export function mimeHintToExtension(mimetype) {
const table = {
// Text
"text/plain": "txt",
"text/html": "html",
"text/css": "css",
"text/javascript": "js",
"application/javascript": "js",
"application/typescript": "ts",
"text/markdown": "md",
"text/csv": "csv",
"application/csv": "csv",
"application/json": "json",
"application/xml": "xml",
"text/xml": "xml",
"application/yaml": "yaml",
"application/x-yaml": "yaml",
"text/yaml": "yaml",
// Documents
"application/pdf": "pdf",
"application/vnd.openxmlformats-officedocument.wordprocessingml.document": "docx",
"application/vnd.openxmlformats-officedocument.presentationml.presentation": "pptx",
"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": "xlsx",
// Images
"image/png": "png",
"image/jpeg": "jpg",
"image/gif": "gif",
"image/webp": "webp",
"image/bmp": "bmp",
"image/tiff": "tiff",
"image/svg+xml": "svg",
// Video
"video/mp4": "mp4",
"video/webm": "webm",
"video/quicktime": "mov",
"video/x-matroska": "mkv",
"video/x-msvideo": "avi",
// Audio
"audio/mpeg": "mp3",
"audio/wav": "wav",
"audio/ogg": "ogg",
"audio/flac": "flac",
"audio/mp4": "m4a",
"audio/aac": "aac",
// Archives
"application/zip": "zip",
"application/x-tar": "tar",
"application/gzip": "gz",
"application/x-gzip": "gz",
"application/x-7z-compressed": "7z",
"application/vnd.rar": "rar",
};
return table[mimetype] || "";
}