From 8226f62ded75d9fea8b844e4d5a7c9167b3435f1 Mon Sep 17 00:00:00 2001
From: zadam <zadam.apps@gmail.com>
Date: Sun, 16 Apr 2023 23:11:18 +0200
Subject: [PATCH] download offline images from libreoffice, fixes #3842

---
 package-lock.json                 |  1 +
 src/public/app/widgets/mermaid.js |  1 -
 src/services/notes.js             | 20 +++++++++++++++++++-
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index f6fd5eaef..59a3f9bd6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,6 +5,7 @@
   "requires": true,
   "packages": {
     "": {
+      "name": "trilium",
       "version": "0.59.3",
       "hasInstallScript": true,
       "license": "AGPL-3.0-only",
diff --git a/src/public/app/widgets/mermaid.js b/src/public/app/widgets/mermaid.js
index d07ce83e0..4a75e643b 100644
--- a/src/public/app/widgets/mermaid.js
+++ b/src/public/app/widgets/mermaid.js
@@ -1,7 +1,6 @@
 import libraryLoader from "../services/library_loader.js";
 import NoteContextAwareWidget from "./note_context_aware_widget.js";
 import froca from "../services/froca.js";
-import server from "../services/server.js";
 
 const TPL = `<div class="mermaid-widget">
     <style>
diff --git a/src/services/notes.js b/src/services/notes.js
index d526372d2..f3d219145 100644
--- a/src/services/notes.js
+++ b/src/services/notes.js
@@ -21,6 +21,7 @@ const dayjs = require("dayjs");
 const htmlSanitizer = require("./html_sanitizer");
 const ValidationError = require("../errors/validation_error");
 const noteTypesService = require("./note_types");
+const fs = require("fs");
 
 function getNewNotePosition(parentNote) {
     if (parentNote.isLabelTruthy('newNotesOnTop')) {
@@ -375,7 +376,24 @@ const imageUrlToNoteIdMapping = {};
 
 async function downloadImage(noteId, imageUrl) {
     try {
-        const imageBuffer = await request.getImage(imageUrl);
+        let imageBuffer;
+
+        if (imageUrl.toLowerCase().startsWith("file://")) {
+            imageBuffer = await new Promise((res, rej) => {
+                const localFilePath = imageUrl.substr("file://".length);
+
+                return fs.readFile(localFilePath, (err, data) => {
+                    if (err) {
+                        rej(err);
+                    } else {
+                        res(data);
+                    }
+                });
+            });
+        } else {
+            imageBuffer = await request.getImage(imageUrl);
+        }
+
         const parsedUrl = url.parse(imageUrl);
         const title = path.basename(parsedUrl.pathname);