Miccah
ad2f9a4b98
* Populate SecretParts on single-part detectors
Adds SecretParts: map[string]string{"key": <secret>} to every detector
package that constructs detectors.Result with a single captured secret
value. This is the single-part half of the SecretParts migration (the
linter's common case, ~695 packages).
* Populate SecretParts on multi-part detectors
117 lines
3.3 KiB
Go
117 lines
3.3 KiB
Go
package eraser
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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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client *http.Client
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}
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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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defaultClient = 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{"eraser"}) + `\b([0-9a-zA-Z]{20})\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{"eraser"}
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}
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// FromData will find and optionally verify Eraser secrets in a given set of bytes.
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func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (results []detectors.Result, err error) {
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dataStr := string(data)
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uniqueMatches := make(map[string]struct{})
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for _, match := range keyPat.FindAllStringSubmatch(dataStr, -1) {
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uniqueMatches[match[1]] = struct{}{}
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}
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for match := range uniqueMatches {
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s1 := detectors.Result{
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DetectorType: detector_typepb.DetectorType_Eraser,
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Raw: []byte(match),
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SecretParts: map[string]string{"key": match},
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ExtraData: map[string]string{
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"rotation_guide": "https://howtorotate.com/docs/tutorials/eraser/",
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},
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}
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if verify {
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client := s.client
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if client == nil {
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client = defaultClient
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}
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isVerified, extraData, verificationErr := verifyMatch(ctx, client, match)
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s1.Verified = isVerified
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s1.ExtraData = extraData
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s1.SetVerificationError(verificationErr, match)
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}
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results = append(results, s1)
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}
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return
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}
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func verifyMatch(ctx context.Context, client *http.Client, token string) (bool, map[string]string, error) {
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// https://docs.eraser.io/reference/generate-diagram-from-eraser-dsl
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payload := strings.NewReader("{\"elements\":[{\"type\":\"diagram\"}]}")
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url := "https://app.eraser.io/api/render/elements"
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, payload)
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if err != nil {
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return false, nil, err
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}
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req.Header = http.Header{"Authorization": []string{"Bearer " + token}}
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req.Header.Add("content-type", "application/json")
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res, err := client.Do(req)
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if err != nil {
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return false, nil, 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, nil
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case http.StatusUnauthorized:
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// 401 API token unauthorized
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// The secret is determinately not verified (nothing to do)
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return false, nil, nil
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default:
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// 400 The request is missing the 'text' parameter
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// 500 Eraser was unable to generate a result
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// 503 Service temporarily unavailable. This may be the result of too many requests.
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return false, nil, 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_Eraser
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}
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func (s Scanner) Description() string {
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return "Eraser is a tool used for generating diagrams from DSL. Eraser API tokens can be used to authenticate and interact with the Eraser API."
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}
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