mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-25 03:40:10 +01:00
201fd6de1e
### Describe Your Changes
Trimming content which is loaded from an external pass leads to obscure
issues in case user-defined input contained trimmed chars. For example.
user-defined password "foo\n" will become "foo" while user will expect
it to contain a new line.
---
For example, a user defines a password which ends with `\n`. This often
happens when user Kubernetes secrets and manually encodes value as
base64-encoded string.
In this case vmauth configuration might look like:
```
users:
- url_prefix:
- http://vminsert:8480/insert/0/prometheus/api/v1/write
name: foo
username: foo
password: "foobar\n"
```
vmagent configuration for this setup will use the following flags:
```
-remoteWrite.url=http://vmauth:8427/
-remoteWrite.basicAuth.passwordFile=/tmp/vmagent-password
-remoteWrite.basicAuth.username="foo"
```
Where `/tmp/vmagent-password` is a file with `foobar\n` password.
Before this change such configuration will result in `401 Unauthorized`
response received by vmagent since after file content will become
`foobar`.
---
An example with Kubernetes operator which uses a secret to reference the
same password in multiple configurations.
<details>
<summary>See full manifests</summary>
`Secret`:
```
apiVersion: v1
data:
name: Zm9v # foo
password: Zm9vYmFy # foobar\n
username: Zm9v= # foo
kind: Secret
metadata:
name: vmuser
```
`VMUser`:
```
apiVersion: operator.victoriametrics.com/v1beta1
kind: VMUser
metadata:
name: vmagents
spec:
generatePassword: false
name: vmagents
targetRefs:
- crd:
kind: VMAgent
name: some-other-agent
namespace: example
username: foo
# note - the secret above is referenced to provide password
passwordRef:
name: vmagent
key: password
```
`VMAgent`:
```
apiVersion: operator.victoriametrics.com/v1beta1
kind: VMAgent
metadata:
name: example
spec:
selectAllByDefault: true
scrapeInterval: 5s
replicaCount: 1
remoteWrite:
- url: "http://vmauth-vmauth-example:8427/api/v1/write"
# note - the secret above is referenced as well
basicAuth:
username:
name: vmagent
key: username
password:
name: vmagent
key: password
```
</details>
Since both config target exactly the same `Secret` object it is expected
to work, but apparently the result will be `401 Unauthrized` error.
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
---------
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
82 lines
2.4 KiB
Go
82 lines
2.4 KiB
Go
package flagutil
|
|
|
|
import (
|
|
"path/filepath"
|
|
"testing"
|
|
)
|
|
|
|
func TestPassword(t *testing.T) {
|
|
p := Password{
|
|
flagname: "foo",
|
|
}
|
|
|
|
// Verify that String returns "secret"
|
|
expectedSecret := "secret"
|
|
if s := p.String(); s != expectedSecret {
|
|
t.Fatalf("unexpected value returned from Password.String; got %q; want %q", s, expectedSecret)
|
|
}
|
|
|
|
// set regular password
|
|
expectedPassword := "top-secret-password"
|
|
if err := p.Set(expectedPassword); err != nil {
|
|
t.Fatalf("cannot set password: %s", err)
|
|
}
|
|
for i := 0; i < 5; i++ {
|
|
if s := p.Get(); s != expectedPassword {
|
|
t.Fatalf("unexpected password; got %q; want %q", s, expectedPassword)
|
|
}
|
|
if s := p.String(); s != expectedSecret {
|
|
t.Fatalf("unexpected value returned from Password.String; got %q; want %q", s, expectedSecret)
|
|
}
|
|
}
|
|
|
|
// read the password from file by relative path
|
|
localPassFile := "testdata/password.txt"
|
|
expectedPassword = "foo-bar-baz\n\n\n"
|
|
path := "file://" + localPassFile
|
|
if err := p.Set(path); err != nil {
|
|
t.Fatalf("cannot set password to file: %s", err)
|
|
}
|
|
for i := 0; i < 5; i++ {
|
|
if s := p.Get(); s != expectedPassword {
|
|
t.Fatalf("unexpected password; got %q; want %q", s, expectedPassword)
|
|
}
|
|
if s := p.String(); s != expectedSecret {
|
|
t.Fatalf("unexpected value returned from Password.String; got %q; want %q", s, expectedSecret)
|
|
}
|
|
}
|
|
|
|
// read the password from file by absolute path
|
|
var err error
|
|
localPassFile, err = filepath.Abs("testdata/password.txt")
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
expectedPassword = "foo-bar-baz\n\n\n"
|
|
path = "file://" + localPassFile
|
|
if err := p.Set(path); err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
for i := 0; i < 5; i++ {
|
|
if s := p.Get(); s != expectedPassword {
|
|
t.Fatalf("unexpected password; got %q; want %q", s, expectedPassword)
|
|
}
|
|
if s := p.String(); s != expectedSecret {
|
|
t.Fatalf("unexpected value returned from Password.String; got %q; want %q", s, expectedSecret)
|
|
}
|
|
}
|
|
|
|
// try reading the password from non-existing url
|
|
if err := p.Set("http://127.0.0.1:56283/aaa/bb?cc=dd"); err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
for i := 0; i < 5; i++ {
|
|
if s := p.Get(); len(s) != 64 {
|
|
t.Fatalf("unexpected password obtained: %q; must be random 64-byte password", s)
|
|
}
|
|
if s := p.String(); s != expectedSecret {
|
|
t.Fatalf("unexpected value returned from Password.String; got %q; want %q", s, expectedSecret)
|
|
}
|
|
}
|
|
}
|