alexisGandar opened a new issue, #586:
URL: https://github.com/apache/cordova-plugin-file/issues/586
# Bug Report
When writing file in this path " window.cordova.file.externalRootDirectory +
'Download' " it always throws a permission error on getFile action. The bug
occur when upgrading on cordova-plugin-file V8 and cordova-android V12 and only
on device with Android 10 and bellow. It does work on cordova-plugin-file V7
and cordova-android V11
## Problem
The modal that request user authorisation for writing
(WRITE_EXTERNAL_STORAGE) does not pop on screen witch lead to an
INVALID_MODIFICATION_ERR (code 9) because the permission is not granted
### What is expected to happen?
The modal that request the permission is displayed.
### What does actually happen?
The modal does not appear
## Information
I found out that when writing a file the following action are executed in
FileUtils.java :
- ResolveLocalFileSystemURI
- RequestAllFileSystem
- GetFile
- GetFileMetaData
- Write
The permission is checked on the "Write" step but on Android 10 (for reasons
that I can't explain) the permission seems to be required at the GetFile steps.
I did patch this issus by editing the GetFile steps in order to always ask
for permission if needed on this step but I am not sure of the concequencies of
this edit.
`else if (action.equals("getFile")) {
threadhelper( new FileOp( ){
public void run(JSONArray args) throws FileExistsException,
IOException, TypeMismatchException, EncodingException, JSONException {
String dirname = args.getString(0);
String path = args.getString(1);
String nativeURL =
resolveLocalFileSystemURI(dirname).getString("nativeURL");
boolean containsCreate = (args.isNull(2)) ? false :
args.getJSONObject(2).optBoolean("create", false);
if(containsCreate && needPermission(nativeURL, WRITE)) {
getWritePermission(rawArgs, ACTION_GET_FILE,
callbackContext);
}
else if(!containsCreate && needPermission(nativeURL,
READ)) {
getReadPermission(rawArgs, ACTION_GET_FILE,
callbackContext);
}
else {
JSONObject obj = getFile(dirname, path,
args.optJSONObject(2), false);
callbackContext.success(obj);
}
}
}, rawArgs, callbackContext);
}`
### Command or Code
<!-- What command or code is needed to reproduce the problem? -->
To reproduce the problem try to save a file with "writeFile" to "
window.cordova.file.externalRootDirectory + 'Download'
### Environment, Platform, Device
<!-- In what environment, on what platform or on which device are you
experiencing the issue? -->
Android 10 with cordova-plugin-file V8 and cordova-android V12
## Checklist
<!-- Please check the boxes by putting an x in the [ ] like so: [x] -->
- [x] I searched for existing GitHub issues
- [x] I updated all Cordova tooling to most recent version
- [x] I included all the necessary information above
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