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vmbackup: correctly check if specified -dst belongs to specified -storageDataPath (#4841)

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See this issue https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4837

Signed-off-by: hagen1778 <roman@victoriametrics.com>
This commit is contained in:
Roman Khavronenko 2023-08-16 14:45:35 +02:00 committed by Aliaksandr Valialkin
parent ab077ab41f
commit 08737f11e3
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GPG key ID: A72BEC6CD3D0DED1
3 changed files with 21 additions and 1 deletions
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15
app/vmbackup/main.go
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@ -205,7 +205,20 @@ func hasFilepathPrefix(path, prefix string) bool {
if err != nil {
return false
}
return strings.HasPrefix(pathAbs, prefixAbs)
if prefixAbs == pathAbs {
return true
}
rel, err := filepath.Rel(prefixAbs, pathAbs)
if err != nil {
// if paths can't be related - they don't match
return false
}
if i := strings.Index(rel, "."); i == 0 {
// if path can be related only with . as first char - they still don't match
return false
}
// if paths are related - it is a match
return true
}
func newOriginFS() (common.OriginFS, error) {

5
app/vmbackup/main_test.go
View file

@ -26,4 +26,9 @@ func TestHasFilepathPrefix(t *testing.T) {
f("fs://"+pwd+"/foo", pwd+"/foo/bar", false)
f("fs://"+pwd+"/foo/bar", pwd+"/foo", true)
f("fs://"+pwd+"/foo", pwd+"/bar", false)
f("fs:///data1", "/data", false)
f("fs:///data", "/data1", false)
f("fs:///data", "/data/foo", false)
f("fs:///data/foo", "/data", true)
f("fs:///data/foo/", "/data/", true)
}

2
docs/CHANGELOG.md
View file

@ -15,6 +15,8 @@ The following tip changes can be tested by building VictoriaMetrics components f
## v1.87.x long-time support release (LTS)
* BUGFIX: [vmbackup](https://docs.victoriametrics.com/vmbackup.html): correctly check if specified `-dst` belongs to specified `-storageDataPath`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4837).
## [v1.87.7](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.87.7)
Released at 2023-08-12