From a0573c439b69e0c11f3cc783edddeea69f34bb0d Mon Sep 17 00:00:00 2001
From: Elian Doran <contact@eliandoran.me>
Date: Fri, 27 Mar 2026 17:32:32 +0200
Subject: [PATCH] fix(core): extension lookup failing in standalone

---
 packages/trilium-core/src/routes/api/import.ts    | 6 +++---
 packages/trilium-core/src/routes/api/revisions.ts | 4 ++--
 packages/trilium-core/src/services/import/mime.ts | 8 ++++----
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/packages/trilium-core/src/routes/api/import.ts b/packages/trilium-core/src/routes/api/import.ts
index 4d68e504f4..b3bcdff357 100644
--- a/packages/trilium-core/src/routes/api/import.ts
+++ b/packages/trilium-core/src/routes/api/import.ts
@@ -1,5 +1,4 @@
 import type { Request } from "express";
-import path from "path";
 import type { File } from "../../services/import/common.js";
 
 interface ImportRequest<P> extends Request<P> {
@@ -12,12 +11,13 @@ import enexImportService from "../../services/import/enex.js";
 import opmlImportService from "../../services/import/opml.js";
 import singleImportService from "../../services/import/single.js";
 import zipImportService from "../../services/import/zip.js";
-import log, { getLog } from "../../services/log.js";
+import { getLog } from "../../services/log.js";
 import TaskContext from "../../services/task_context.js";
 import { safeExtractMessageAndStackFromError } from "../../services/utils/index.js";
 import * as cls from "../../services/context.js";
 import { ValidationError } from "../../errors.js";
 import becca_loader from "../../becca/becca_loader.js";
+import { extname } from "../../services/utils/path.js";
 
 async function importNotesToBranch(req: ImportRequest<{ parentNoteId: string }>) {
     const { parentNoteId } = req.params;
@@ -40,7 +40,7 @@ async function importNotesToBranch(req: ImportRequest<{ parentNoteId: string }>)
 
     const parentNote = becca.getNoteOrThrow(parentNoteId);
 
-    const extension = path.extname(file.originalname).toLowerCase();
+    const extension = extname(file.originalname).toLowerCase();
 
     // running all the event handlers on imported notes (and attributes) is slow
     // and may produce unintended consequences
diff --git a/packages/trilium-core/src/routes/api/revisions.ts b/packages/trilium-core/src/routes/api/revisions.ts
index 5620cb1400..22b62ffcba 100644
--- a/packages/trilium-core/src/routes/api/revisions.ts
+++ b/packages/trilium-core/src/routes/api/revisions.ts
@@ -1,6 +1,5 @@
 import { EditedNotesResponse, RevisionItem, RevisionPojo } from "@triliumnext/commons";
 import type { Request, Response } from "express";
-import path from "path";
 
 import becca from "../../becca/becca.js";
 import type BNote from "../../becca/entities/bnote.js";
@@ -10,6 +9,7 @@ import eraseService from "../../services/erase.js";
 import { NotePojo } from "../../becca/becca-interface.js";
 import { becca_service, binary_utils, cls, getSql } from "../../index.js";
 import { formatDownloadTitle, getContentDisposition } from "../../services/utils/index.js";
+import { extname } from "../../services/utils/path.js";
 
 interface NotePath {
     noteId: string;
@@ -67,7 +67,7 @@ function getRevisionFilename(revision: BRevision) {
         throw new Error("Missing creation date for revision.");
     }
 
-    const extension = path.extname(filename);
+    const extension = extname(filename);
     const date = revision.dateCreated
         .substr(0, 19)
         .replace(" ", "_")
diff --git a/packages/trilium-core/src/services/import/mime.ts b/packages/trilium-core/src/services/import/mime.ts
index b25e98926d..9ce41324ce 100644
--- a/packages/trilium-core/src/services/import/mime.ts
+++ b/packages/trilium-core/src/services/import/mime.ts
@@ -1,8 +1,8 @@
 "use strict";
 
-import mimeTypes from "mime-types";
-import path from "path";
+import { types as extToMime } from "mime-types";
 import type { NoteType, TaskData } from "@triliumnext/commons";
+import { extname } from "../utils/path";
 
 const CODE_MIME_TYPES = new Set([
     "application/json",
@@ -84,10 +84,10 @@ function getMime(fileName: string) {
         return "text/x-dockerfile";
     }
 
-    const ext = path.extname(fileNameLc);
+    const ext = extname(fileNameLc);
     const mimeFromExt = EXTENSION_TO_MIME.get(ext);
 
-    return mimeFromExt || mimeTypes.lookup(fileNameLc);
+    return mimeFromExt || extToMime[ext.slice(1)] || false;
 }
 
 function getType(options: TaskData<"importNotes">, mime: string): NoteType {