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Allow Agent auto auth to read symlinked JWT files (hashicorp#11502)
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,108 @@ | ||
package jwt | ||
|
||
import ( | ||
"bytes" | ||
"io/ioutil" | ||
"os" | ||
"path" | ||
"strings" | ||
"sync/atomic" | ||
"testing" | ||
|
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"github.com/hashicorp/go-hclog" | ||
) | ||
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func TestIngressToken(t *testing.T) { | ||
const ( | ||
dir = "dir" | ||
file = "file" | ||
empty = "empty" | ||
missing = "missing" | ||
symlinked = "symlinked" | ||
) | ||
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rootDir, err := ioutil.TempDir("", "vault-agent-jwt-auth-test") | ||
if err != nil { | ||
t.Fatalf("failed to create temp dir: %s", err) | ||
} | ||
defer os.RemoveAll(rootDir) | ||
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setupTestDir := func() string { | ||
testDir, err := ioutil.TempDir(rootDir, "") | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
err = ioutil.WriteFile(path.Join(testDir, file), []byte("test"), 0644) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
_, err = os.Create(path.Join(testDir, empty)) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
err = os.Mkdir(path.Join(testDir, dir), 0755) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
err = os.Symlink(path.Join(testDir, file), path.Join(testDir, symlinked)) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
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return testDir | ||
} | ||
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for _, tc := range []struct { | ||
name string | ||
path string | ||
errString string | ||
}{ | ||
{ | ||
"happy path", | ||
file, | ||
"", | ||
}, | ||
{ | ||
"path is directory", | ||
dir, | ||
"[ERROR] jwt file is not a regular file or symlink", | ||
}, | ||
{ | ||
"path is symlink", | ||
symlinked, | ||
"", | ||
}, | ||
{ | ||
"path is missing (implies nothing for ingressToken to do)", | ||
missing, | ||
"", | ||
}, | ||
{ | ||
"path is empty file", | ||
empty, | ||
"[WARN] empty jwt file read", | ||
}, | ||
} { | ||
testDir := setupTestDir() | ||
logBuffer := bytes.Buffer{} | ||
jwtAuth := &jwtMethod{ | ||
logger: hclog.New(&hclog.LoggerOptions{ | ||
Output: &logBuffer, | ||
}), | ||
latestToken: new(atomic.Value), | ||
path: path.Join(testDir, tc.path), | ||
} | ||
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jwtAuth.ingressToken() | ||
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if tc.errString != "" { | ||
if !strings.Contains(logBuffer.String(), tc.errString) { | ||
t.Fatal("logs did no contain expected error", tc.errString, logBuffer.String()) | ||
} | ||
} else { | ||
if strings.Contains(logBuffer.String(), "[ERROR]") || strings.Contains(logBuffer.String(), "[WARN]") { | ||
t.Fatal("logs contained unexpected error", logBuffer.String()) | ||
} | ||
} | ||
} | ||
} |