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sftpd: add Readlink support

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This commit is contained in:
Nicola Murino
2020-08-22 14:52:17 +02:00
parent 5208e4a4ca
commit 02e35ee002
16 changed files with 183 additions and 38 deletions
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18
common/connection.go
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@@ -172,6 +172,18 @@ func (c *BaseConnection) SignalTransfersAbort() error {
return nil
}
func (c *BaseConnection) getRealFsPath(fsPath string) string {
c.RLock()
defer c.RUnlock()
for _, t := range c.activeTransfers {
if p := t.GetRealFsPath(fsPath); len(p) > 0 {
return p
}
}
return fsPath
}
func (c *BaseConnection) truncateOpenHandle(fsPath string, size int64) (int64, error) {
c.RLock()
defer c.RUnlock()
@@ -439,7 +451,7 @@ func (c *BaseConnection) SetStat(fsPath, virtualPath string, attributes *StatAtt
if !c.User.HasPerm(dataprovider.PermChmod, pathForPerms) {
return c.GetPermissionDeniedError()
}
if err := c.Fs.Chmod(fsPath, attributes.Mode); err != nil {
if err := c.Fs.Chmod(c.getRealFsPath(fsPath), attributes.Mode); err != nil {
c.Log(logger.LevelWarn, "failed to chmod path %#v, mode: %v, err: %+v", fsPath, attributes.Mode.String(), err)
return c.GetFsError(err)
}
@@ -451,7 +463,7 @@ func (c *BaseConnection) SetStat(fsPath, virtualPath string, attributes *StatAtt
if !c.User.HasPerm(dataprovider.PermChown, pathForPerms) {
return c.GetPermissionDeniedError()
}
if err := c.Fs.Chown(fsPath, attributes.UID, attributes.GID); err != nil {
if err := c.Fs.Chown(c.getRealFsPath(fsPath), attributes.UID, attributes.GID); err != nil {
c.Log(logger.LevelWarn, "failed to chown path %#v, uid: %v, gid: %v, err: %+v", fsPath, attributes.UID,
attributes.GID, err)
return c.GetFsError(err)
@@ -465,7 +477,7 @@ func (c *BaseConnection) SetStat(fsPath, virtualPath string, attributes *StatAtt
return c.GetPermissionDeniedError()
}
if err := c.Fs.Chtimes(fsPath, attributes.Atime, attributes.Mtime); err != nil {
if err := c.Fs.Chtimes(c.getRealFsPath(fsPath), attributes.Atime, attributes.Mtime); err != nil {
c.Log(logger.LevelWarn, "failed to chtimes for path %#v, access time: %v, modification time: %v, err: %+v",
fsPath, attributes.Atime, attributes.Mtime, err)
return c.GetFsError(err)