fixed & refactored opening/downloading file notes

src/public/app/services/open.js

@@ -0,0 +1,71 @@
+import utils from "./utils.js";
+import server from "./server.js";
+
+function getFileUrl(noteId) {
+    return getUrlForDownload("api/notes/" + noteId + "/download");
+}
+
+function download(url) {
+    if (utils.isElectron()) {
+        const remote = utils.dynamicRequire('electron').remote;
+
+        remote.getCurrentWebContents().downloadURL(url);
+    } else {
+        window.location.href = url;
+    }
+}
+
+function downloadFileNote(noteId) {
+    const url = getFileUrl(noteId) + '?' + Date.now(); // don't use cache
+
+    download(url);
+}
+
+async function openFileNote(noteId) {
+    if (utils.isElectron()) {
+        const resp = await server.post("notes/" + noteId + "/saveToTmpDir");
+
+        const electron = utils.dynamicRequire('electron');
+        const res = await electron.shell.openPath(resp.tmpFilePath);
+
+        if (res) {
+            // fallback in case there's no default application for this file
+            open(getFileUrl(noteId), {url: true});
+        }
+    }
+    else {
+        window.location.href = getFileUrl(noteId);
+    }
+}
+
+function downloadNoteRevision(noteId, noteRevisionId) {
+    const url = getUrlForDownload(`api/notes/${noteId}/revisions/${noteRevisionId}/download`);
+
+    download(url);
+}
+
+/**
+ * @param url - should be without initial slash!!!
+ */
+function getUrlForDownload(url) {
+    if (utils.isElectron()) {
+        // electron needs absolute URL so we extract current host, port, protocol
+        return getHost() + '/' + url;
+    }
+    else {
+        // web server can be deployed on subdomain so we need to use relative path
+        return url;
+    }
+}
+
+function getHost() {
+    const url = new URL(window.location.href);
+    return url.protocol + "//" + url.hostname + ":" + url.port;
+}
+
+export default {
+    downloadFileNote,
+    openFileNote,
+    downloadNoteRevision,
+    getUrlForDownload
+}