[NEW][Apps] Add a new upload API

app/apps/lib/misc/determineFileType.js

@@ -0,0 +1,19 @@
+import fileType from 'file-type';
+
+import { mime as MIME } from '../../../utils/lib/mimeTypes';
+
+export function determineFileType(buffer, details) {
+	const mime = MIME.lookup(details.name);
+
+	if (mime) {
+		return Array.isArray(mime) ? mime[0] : mime;
+	}
+
+	const detectedType = fileType(buffer);
+
+	if (detectedType) {
+		return detectedType.mime;
+	}
+
+	return 'application/octet-stream';
+}

app/apps/server/bridges/uploads.js

@@ -1,4 +1,7 @@
+import { Meteor } from 'meteor/meteor';
+
 import { FileUpload } from '../../../file-upload/server';
+import { determineFileType } from '../../lib/misc/determineFileType';
 
 export class AppUploadBridge {
 	constructor(orch) {
@@ -26,4 +29,21 @@ export class AppUploadBridge {
 			});
 		});
 	}
+
+	createUpload(details, buffer, appId) {
+		this.orch.debugLog(`The App ${ appId } is creating an upload "${ details.name }"`);
+
+		details.type = determineFileType(buffer, details);
+
+		const fileStore = FileUpload.getStore('Uploads');
+		const uploadedFile = fileStore.insertSync(details, buffer);
+
+		if (details.userId) {
+			Meteor.runAsUser(details.userId, () => {
+				Meteor.call('sendFileMessage', details.rid, null, uploadedFile);
+			});
+		}
+
+		return this.orch.getConverters().get('uploads').convertToApp(uploadedFile);
+	}
 }

app/file-upload/server/lib/FileUpload.js

@@ -66,7 +66,7 @@ export const FileUpload = {
 		const room = Rooms.findOneById(file.rid);
 		const directMessageAllowed = settings.get('FileUpload_Enabled_Direct');
 		const fileUploadAllowed = settings.get('FileUpload_Enabled');
-		if (canAccessRoom(room, user, file) !== true) {
+		if (user.type !== 'app' && canAccessRoom(room, user, file) !== true) {
 			return false;
 		}
 		const language = user ? user.language : 'en';

package.json

@@ -129,7 +129,7 @@
 		"@nivo/heatmap": "^0.61.0",
 		"@nivo/line": "^0.61.1",
 		"@nivo/pie": "^0.61.1",
-		"@rocket.chat/apps-engine": "1.18.0-beta.3837",
+		"@rocket.chat/apps-engine": "1.18.0-beta.3848",
 		"@rocket.chat/css-in-js": "^0.14.1",
 		"@rocket.chat/fuselage": "^0.14.1",
 		"@rocket.chat/fuselage-hooks": "^0.14.1",