mirror of
https://github.com/trufflesecurity/trufflehog.git
synced 2026-05-16 13:20:35 +00:00
Amaan Ullah
0fa069c12f
* enable errcheck and staticcheck for golangci-lint v2 and resolve all issues * skip lint on intentional reference of deprecated DetectorType values
95 lines
3.0 KiB
Go
95 lines
3.0 KiB
Go
package azurefunctionkey
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import (
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"context"
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"fmt"
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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/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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detectors.DefaultMultiPartCredentialProvider
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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 = detectors.DetectorHttpClientWithNoLocalAddresses
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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{"azure"}) + `\b([a-zA-Z0-9_-]{20,56})\b={0,2}`)
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azureUrlPat = regexp.MustCompile(`\bhttps:\/\/([a-zA-Z0-9-]{2,30})\.azurewebsites\.net\/api\/([a-zA-Z0-9-]{2,30})\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{"azure"}
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}
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// FromData will find and optionally verify azure 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.FindAllStringSubmatch(dataStr, -1)
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urlMatches := azureUrlPat.FindAllStringSubmatch(dataStr, -1)
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for _, match := range matches {
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resTrim := strings.Split(strings.TrimSpace(match[0]), " ")
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resMatch := resTrim[len(resTrim)-1]
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for _, urlMatch := range urlMatches {
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resUrl := strings.TrimSpace(urlMatch[0])
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s1 := detectors.Result{
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DetectorType: detector_typepb.DetectorType_AzureFunctionKey,
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Raw: []byte(resMatch),
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SecretParts: map[string]string{
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"key": resMatch,
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"url": resUrl,
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},
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RawV2: []byte(resMatch + resUrl),
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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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req, err := http.NewRequestWithContext(ctx, "GET", resUrl+"?code="+resMatch, nil)
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if err != nil {
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continue
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}
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res, err := client.Do(req)
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if err == nil {
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defer func() { _ = res.Body.Close() }()
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if res.StatusCode >= 200 && res.StatusCode < 300 {
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s1.Verified = true
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} else if res.StatusCode == 401 {
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// The secret is determinately not verified (nothing to do)
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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, resMatch)
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}
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} else {
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s1.SetVerificationError(err, resMatch)
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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() detector_typepb.DetectorType {
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return detector_typepb.DetectorType_AzureFunctionKey
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}
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func (s Scanner) Description() string {
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return "Azure Functions is a serverless compute service that lets you run event-triggered code without having to explicitly provision or manage infrastructure. Azure Function Keys can be used to access and manage these functions."
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}
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