[MOO-1317] Fix file download jsAction - read the files unencrypted (#117)

Author: Ahmad-Elsayed

packages/jsActions/mobile-resources-native/CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+### Changed
+
+-   fixed an Android issue in Download file action.
+
 ## [6.0.0] Native Mobile Resources - 2024-01-24
 
 ## BREAKING

packages/jsActions/mobile-resources-native/src/file-download/DownloadFile.ts

@@ -6,7 +6,7 @@
 // - the code between BEGIN EXTRA CODE and END EXTRA CODE
 // Other code you write will be lost the next time you deploy the project.
 import { Platform } from "react-native";
-import RNBlobUtil from "react-native-blob-util";
+import RNBlobUtil, { Mediatype } from "react-native-blob-util";
 import FileViewer from "react-native-file-viewer";
 import mimeTypes from "mime";
 
@@ -51,24 +51,31 @@ export async function DownloadFile(file: mendix.lib.MxObject, openWithOS: boolea
 
     const dirs = RNBlobUtil.fs.dirs;
     const fileName = file.get("Name") as string;
-    const mimeType = mimeTypes.getType(fileName);
     const sanitizedFileName = sanitizeFileName(fileName);
     const baseDir = Platform.OS === "ios" ? dirs.DocumentDir : dirs.DownloadDir;
     const filePath = mx.data.getDocumentUrl(file.getGuid(), Number(file.get("changedDate")));
     let accessiblePath;
+
     if (Platform.OS === "ios") {
         accessiblePath = await getUniqueFilePath(baseDir, sanitizedFileName);
         await RNBlobUtil.fs.cp(filePath, accessiblePath);
     } else {
+        const tempPath = await getUniqueFilePath(baseDir, sanitizedFileName);
+        const base64Data = await mx.readFileBlob(filePath);
+        const base64Content = base64Data?.split(",")[1];
+        await RNBlobUtil.fs.createFile(tempPath, base64Content, "base64");
+        const mimeType = mimeTypes.getType(fileName) as Mediatype;
         accessiblePath = await RNBlobUtil.MediaCollection.copyToMediaStore(
             {
                 name: sanitizedFileName,
                 mimeType: mimeType ?? "*",
                 parentFolder: ""
             },
             "Download",
-            filePath
+            tempPath
         );
+
+        RNBlobUtil.fs.unlink(tempPath);
     }
     if (openWithOS) {
         await FileViewer.open(accessiblePath, {

packages/jsActions/mobile-resources-native/typings/mx.d.ts

@@ -0,0 +1,5 @@
+declare namespace mx {
+    interface MxInterface {
+        readFileBlob: (filePath: string) => Promise<string>;
+    }
+}