mirror of
https://github.com/trufflesecurity/trufflehog.git
synced 2024-09-20 22:51:55 +00:00
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
package squareapp
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"regexp"
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"strings"
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"github.com/trufflesecurity/trufflehog/pkg/detectors"
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"github.com/trufflesecurity/trufflehog/pkg/pb/detectorspb"
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"github.com/trufflesecurity/trufflehog/pkg/common"
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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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//possibly always `sq0csp` for secret
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// and `sq0idb` for app
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keyPat = regexp.MustCompile(`[\w\-]*sq0i[a-z]{2}-[0-9A-Za-z\-_]{22,43}`)
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secPat = regexp.MustCompile(`[\w\-]*sq0c[a-z]{2}-[0-9A-Za-z\-_]{40,50}`)
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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{"sq0i"}
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}
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// FromData will find and optionally verify SquareApp 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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matches := keyPat.FindAllString(dataStr, -1)
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secMatches := secPat.FindAllString(dataStr, -1)
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for _, match := range matches {
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for _, secMatch := range secMatches {
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if detectors.IsKnownFalsePositive(strings.ToLower(secMatch), detectors.DefaultFalsePositives, true) {
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continue
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}
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s := detectors.Result{
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DetectorType: detectorspb.DetectorType_Square,
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Raw: []byte(match),
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Redacted: match,
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}
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if verify {
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baseURL := "https://connect.squareupsandbox.com/oauth2/revoke"
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client := common.SaneHttpClient()
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reqData, err := json.Marshal(map[string]string{
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"client_id": match,
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"access_token": "fakeTruffleHogAccessTokenForVerification",
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})
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if err != nil {
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return results, err
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}
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req, _ := http.NewRequestWithContext(ctx, "POST", baseURL, bytes.NewReader(reqData))
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req.Header.Add("Authorization", fmt.Sprintf("Client %s", secMatch))
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req.Header.Add("Content-Type", "application/json")
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// unclear if this version needs to be set or matters, seems to work without, but docs want it
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//req.Header.Add("Square-Version", "2020-08-12")
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res, err := client.Do(req)
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if err != nil {
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return results, err
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}
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defer res.Body.Close()
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// 404 = Correct crentials. The fake access token should not be found
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if res.StatusCode == http.StatusNotFound {
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s.Verified = true
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}
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}
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if !s.Verified {
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if detectors.IsKnownFalsePositive(string(s.Raw), detectors.DefaultFalsePositives, true) {
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continue
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}
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}
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results = append(results, s)
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}
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}
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return
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}
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