Files
trufflehog/pkg/detectors/langsmith/langsmith.go
Brad Larsen 554cd798b5 Fix error propagation and a typo in verification logic (#4427)
* Propagate verification errors

Without this, it is possible (though unlikely) for a finding to incorrectly be
classified as `unverified` when it is in fact `unknown`.

* Fix logic error in Box OAuth verification

* Expand comment for Box OAuth verification; fix its logic
2025-08-28 14:55:11 +05:00

101 lines
2.7 KiB
Go

package langsmith
import (
"context"
"fmt"
"io"
"net/http"
regexp "github.com/wasilibs/go-re2"
"github.com/trufflesecurity/trufflehog/v3/pkg/common"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
)
type Scanner struct {
client *http.Client
}
// Ensure the Scanner satisfies the interface at compile time.
var _ detectors.Detector = (*Scanner)(nil)
var (
defaultClient = common.SaneHttpClient()
// Make sure that your group is surrounded in boundary characters such as below to reduce false positives.
keyPat = regexp.MustCompile(`\b(lsv2_(?:pt|sk)_[a-f0-9]{32}_[a-f0-9]{10})\b`) // personal api token and service keys
)
// Keywords are used for efficiently pre-filtering chunks.
// Use identifiers in the secret preferably, or the provider name.
func (s Scanner) Keywords() []string {
return []string{"lsv2_pt_", "lsv2_sk_"}
}
// FromData will find and optionally verify Langsmith secrets in a given set of bytes.
func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (results []detectors.Result, err error) {
dataStr := string(data)
uniqueAPIKeys := make(map[string]struct{})
for _, match := range keyPat.FindAllStringSubmatch(dataStr, -1) {
uniqueAPIKeys[match[1]] = struct{}{}
}
for apiKey := range uniqueAPIKeys {
s1 := detectors.Result{
DetectorType: detectorspb.DetectorType_LangSmith,
Raw: []byte(apiKey),
}
if verify {
client := s.client
if client == nil {
client = defaultClient
}
isVerified, verificationErr := verifyMatch(ctx, client, apiKey)
s1.Verified = isVerified
s1.SetVerificationError(verificationErr, apiKey)
}
results = append(results, s1)
}
return
}
func verifyMatch(ctx context.Context, client *http.Client, apiKey string) (bool, error) {
req, err := http.NewRequestWithContext(ctx, http.MethodGet, "https://api.smith.langchain.com/api/v1/api-key", http.NoBody)
if err != nil {
return false, err
}
req.Header.Set("X-API-Key", apiKey)
res, err := client.Do(req)
if err != nil {
return false, err
}
defer func() {
_, _ = io.Copy(io.Discard, res.Body)
_ = res.Body.Close()
}()
switch res.StatusCode {
case http.StatusOK:
return true, nil
case http.StatusUnauthorized, http.StatusForbidden:
return false, nil
default:
return false, fmt.Errorf("unexpected HTTP response status %d", res.StatusCode)
}
}
func (s Scanner) Type() detectorspb.DetectorType {
return detectorspb.DetectorType_LangSmith
}
func (s Scanner) Description() string {
return "LangSmith is a unified observability & evals platform where teams can debug, test, and monitor AI app performance — whether building with LangChain or not"
}