https://bugs.kde.org/show_bug.cgi?id=390328
Bug ID: 390328
Summary: KIO AccessManager breaks QML's XMLHttpRequest
Product: frameworks-kio
Version: 5.43.0
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: fa...@kde.org
Reporter: sit...@kde.org
CC: kdelibs-b...@kde.org
Target Milestone: ---
Created attachment 110567
--> https://bugs.kde.org/attachment.cgi?id=110567&action=edit
example app
When using KDeclarative it will set KIO's AcessManager as QmlNAM, after that
the builtin XMLHttpRequest qml type can no longer (over)write existing file://
locations.
Simple example attached.
With the builtin NAM you can do
```
var xhr = new XMLHttpRequest;
xhr.open("PUT", "file:///tmp/test.json");
xhr.send(new Date().toISOString());
```
in qml.
With the KIO one this runs through the file slave, which will perform an
overwrite check in `FileProtocol::put`. That's fine if the file doesn't exist,
when trying to update an existing file that aborts the put with
ERR_FILE_ALREADY_EXIST and no data written.
```
if (bOrigExists && !(_flags & KIO::Overwrite) && !(_flags & KIO::Resume)) {
if ((buff_orig.st_mode & QT_STAT_MASK) == QT_STAT_DIR) {
error(KIO::ERR_DIR_ALREADY_EXIST, dest_orig);
} else {
error(KIO::ERR_FILE_ALREADY_EXIST, dest_orig);
}
return;
}
```
The attached example writes the current datetime to /tmp/test.json when
clicking the save button, this fails top update the stamp after the first
write.
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