Dustin Decker
14e44db2be
* Remove detectors.IsKnownFalsePositive from detectors * Centralize false positive removal in engine * Don't apply fp filtering on custom regex to preserve previous behavior. * fix empty branch * update excludes * update filtering * Add result flag option and exclude some detectors
103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
package instamojo
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import (
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"context"
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"fmt"
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regexp "github.com/wasilibs/go-re2"
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"io"
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"net/http"
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"strings"
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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/detectorspb"
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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 is client_id
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keyPat = regexp.MustCompile(detectors.PrefixRegex([]string{"instamojo"}) + `\b([0-9a-zA-Z]{40})\b`)
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// Secretpat is Client_secret
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secretPat = regexp.MustCompile(detectors.PrefixRegex([]string{"instamojo"}) + `\b([0-9a-zA-Z]{128})\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{"instamojo"}
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}
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// FromData will find and optionally verify Instamojo 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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secretMatches := secretPat.FindAllStringSubmatch(dataStr, -1)
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clientIdmatches := keyPat.FindAllStringSubmatch(dataStr, -1)
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for _, match := range secretMatches {
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if len(match) != 2 {
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continue
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}
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resSecret := strings.TrimSpace(match[1])
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for _, clientIdMatch := range clientIdmatches {
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if len(clientIdMatch) != 2 {
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continue
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}
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resClientId := strings.TrimSpace(clientIdMatch[1])
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s1 := detectors.Result{
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DetectorType: detectorspb.DetectorType_Instamojo,
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Raw: []byte(resClientId),
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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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payload := strings.NewReader("grant_type=client_credentials&client_id=" + resClientId + "&client_secret=" + resSecret)
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req, err := http.NewRequestWithContext(ctx, "POST", "https://api.instamojo.com/oauth2/token/", payload)
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if err != nil {
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continue
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}
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req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
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res, err := client.Do(req)
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if err == nil {
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defer res.Body.Close()
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bodyBytes, err := io.ReadAll(res.Body)
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if err != nil {
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continue
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}
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body := string(bodyBytes)
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if (res.StatusCode >= 200 && res.StatusCode < 300) && strings.Contains(body, "access_token") {
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s1.Verified = true
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} else {
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err = fmt.Errorf("unexpected HTTP response status %d", res.StatusCode)
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s1.SetVerificationError(err, resSecret)
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}
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} else {
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s1.SetVerificationError(err, resSecret)
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}
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}
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results = append(results, s1)
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}
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}
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return results, nil
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}
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func (s Scanner) Type() detectorspb.DetectorType {
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return detectorspb.DetectorType_Instamojo
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}
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