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Stopped user from mounting to vaults to the same path

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This commit is contained in:
JaniruTEC
2023-07-24 18:53:19 +02:00
parent 59d89faf38
commit 9bb24320bf
3 changed files with 18 additions and 16 deletions
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23
src/main/java/org/cryptomator/common/mount/MountWithinParentUtil.java
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@@ -8,7 +8,6 @@ import java.io.IOException;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.LinkOption;
import java.nio.file.NoSuchFileException;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributes;
@@ -23,7 +22,7 @@ public final class MountWithinParentUtil {
static void prepareParentNoMountPoint(Path mountPoint) throws IllegalMountPointException, IOException {
Path hideaway = getHideaway(mountPoint);
var mpExists = removeResidualJunction(mountPoint); //Handle junction as not existing
var mpExists = handleMountPointFolder(mountPoint); //Handle residual (= broken) junction as not existing
var hideExists = Files.exists(hideaway, LinkOption.NOFOLLOW_LINKS);
if (!mpExists && !hideExists) { //neither mountpoint nor hideaway exist
@@ -64,17 +63,19 @@ public final class MountWithinParentUtil {
}
//visible for testing
static boolean removeResidualJunction(Path path) throws IOException {
try {
if (Files.readAttributes(path, BasicFileAttributes.class, LinkOption.NOFOLLOW_LINKS).isOther()) {
LOG.info("Mountpoint \"{}\" is still a junction. Deleting it.", path);
Files.delete(path); //Throws if path is also a non-empty folder
return false;
}
return true;
} catch (NoSuchFileException e) {
static boolean handleMountPointFolder(Path path) throws IOException {
if (Files.notExists(path, LinkOption.NOFOLLOW_LINKS)) {
return false;
}
if (!Files.readAttributes(path, BasicFileAttributes.class, LinkOption.NOFOLLOW_LINKS).isOther()) {
return true;
}
if (Files.exists(path /* FOLLOW_LINKS */)) { //Both junction and target exist
throw new MountPointInUseException(path);
}
LOG.info("Mountpoint \"{}\" is still a junction. Deleting it.", path);
Files.delete(path); //Throws if path is also a non-empty folder
return false;
}
//visible for testing