115 lines
2.6 KiB
Go
115 lines
2.6 KiB
Go
package tly
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"strings"
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regexp "github.com/wasilibs/go-re2"
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"github.com/trufflesecurity/trufflehog/v3/pkg/common"
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"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
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"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detector_typepb"
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)
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type Scanner struct{}
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// Ensure the Scanner satisfies the interface at compile time.
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var _ detectors.Detector = (*Scanner)(nil)
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var (
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client = common.SaneHttpClient()
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// Make sure that your group is surrounded in boundary characters such as below to reduce false positives.
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keyPat = regexp.MustCompile(detectors.PrefixRegex([]string{"tly"}) + `\b([0-9A-Za-z]{60})\b`)
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)
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// Keywords are used for efficiently pre-filtering chunks.
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// Use identifiers in the secret preferably, or the provider name.
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func (s Scanner) Keywords() []string {
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return []string{"tly"}
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}
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// FromData will find and optionally verify TLy secrets in a given set of bytes.
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func (s Scanner) FromData(
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ctx context.Context,
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verify bool,
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data []byte,
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) (results []detectors.Result, err error) {
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dataStr := string(data)
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uniqueKeys := make(map[string]struct{})
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for _, match := range keyPat.FindAllStringSubmatch(dataStr, -1) {
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uniqueKeys[strings.TrimSpace(match[1])] = struct{}{}
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}
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for key := range uniqueKeys {
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result := detectors.Result{
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DetectorType: detector_typepb.DetectorType_TLy,
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Raw: []byte(key),
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SecretParts: map[string]string{
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"key": key,
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},
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}
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if verify {
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verified, verificationErr := verifyTLyKey(ctx, client, key)
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result.SetVerificationError(verificationErr, key)
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result.Verified = verified
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}
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results = append(results, result)
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}
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return
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}
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func verifyTLyKey(
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ctx context.Context,
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client *http.Client,
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key string,
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) (bool, error) {
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req, err := http.NewRequestWithContext(
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ctx,
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http.MethodGet,
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"https://api.t.ly/api/v1/link/list",
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http.NoBody,
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)
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if err != nil {
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return false, err
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}
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req.Header.Set("Authorization", "Bearer "+key)
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req.Header.Set("Accept", "application/json")
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res, err := client.Do(req)
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if err != nil {
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return false, err
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}
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defer func() {
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_, _ = io.Copy(io.Discard, res.Body)
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_ = res.Body.Close()
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}()
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switch res.StatusCode {
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case http.StatusOK:
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return true, nil
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case http.StatusUnauthorized, http.StatusForbidden:
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return false, nil
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default:
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return false, fmt.Errorf("unexpected HTTP response status %d", res.StatusCode)
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}
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}
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func (s Scanner) Type() detector_typepb.DetectorType {
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return detector_typepb.DetectorType_TLy
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}
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func (s Scanner) Description() string {
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return "TLy is a URL shortening service. TLy API keys can be used to access and manage shortened URLs."
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}
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