97 lines
2.7 KiB
Go
97 lines
2.7 KiB
Go
package blogger
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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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// Google API keys always start with "AIzaSy" (6-char prefix + 33 remaining = 39 total).
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// The prefix regex retains "blogger" proximity to distinguish from other Google API-backed things.
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// No trailing \b because keys can end with '-', which is not a word character.
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keyPat = regexp.MustCompile(detectors.PrefixRegex([]string{"blogger"}) + `\b(AIzaSy[0-9A-Za-z_-]{33})`)
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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{"blogger"}
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}
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// FromData will find and optionally verify Blogger 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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for _, match := range matches {
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resMatch := strings.TrimSpace(match[1])
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s1 := detectors.Result{
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DetectorType: detector_typepb.DetectorType_Blogger,
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Raw: []byte(resMatch),
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SecretParts: map[string]string{"key": resMatch},
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}
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if verify {
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isVerified, verificationErr := verifyBlogger(ctx, client, resMatch)
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s1.Verified = isVerified
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s1.SetVerificationError(verificationErr)
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}
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results = append(results, s1)
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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_Blogger
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}
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func (s Scanner) Description() string {
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return "Blogger API keys can be used to access and manage blogs on the Blogger platform."
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}
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// docs: https://developers.google.com/blogger/docs/3.0/using
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func verifyBlogger(ctx context.Context, client *http.Client, key string) (bool, error) {
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req, err := http.NewRequestWithContext(ctx, "GET", "https://www.googleapis.com/blogger/v3/blogs/2399953?key="+key, nil)
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if err != nil {
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return false, err
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}
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resp, 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, resp.Body)
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_ = resp.Body.Close()
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}()
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switch resp.StatusCode {
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case http.StatusOK:
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return true, nil
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case http.StatusBadRequest, http.StatusForbidden:
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return false, nil
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default:
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return false, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
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}
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}
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