Files
ahrav 30ebe84e3e [THOG-608] - Fix linter errors. (#701)
* Fix linter errors.

* Fix gist adding test.

* Update test string for mock JSON reply.

* Remove if.
2022-08-09 19:20:02 -07:00

85 lines
2.5 KiB
Go

package slack
import (
"context"
"encoding/json"
"fmt"
"net/http"
"regexp"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
"github.com/trufflesecurity/trufflehog/v3/pkg/common"
)
type Scanner struct{}
// Check that the Slack scanner implements the SecretScanner interface at compile time.
var _ detectors.Detector = Scanner{}
var (
tokenPats = map[string]*regexp.Regexp{
"Slack Bot Token": regexp.MustCompile(`xoxb\-[0-9]{10,13}\-[0-9]{10,13}[a-zA-Z0-9\-]*`),
"Slack User Token": regexp.MustCompile(`xoxp\-[0-9]{10,13}\-[0-9]{10,13}[a-zA-Z0-9\-]*`),
"Slack Workspace Access Token": regexp.MustCompile(`xoxa\-[0-9]{10,13}\-[0-9]{10,13}[a-zA-Z0-9\-]*`),
"Slack Workspace Refresh Token": regexp.MustCompile(`xoxr\-[0-9]{10,13}\-[0-9]{10,13}[a-zA-Z0-9\-]*`),
}
verifyURL = "https://slack.com/api/auth.test"
)
type authRes struct {
Ok bool `json:"ok"`
URL string `json:"url"` // Workspace URL
Team string `json:"team"` // Human friendly workspace name
User string `json:"user"` // Username
TeamID string `json:"team_id"`
UserID string `json:"user_id"`
BotID string `json:"bot_id"`
Error string `json:"error"`
}
// Keywords are used for efficiently pre-filtering chunks.
// Use identifiers in the secret preferably, or the provider name.
func (s Scanner) Keywords() []string {
return []string{"xoxb-", "xoxp-", "xoxa-", "xoxr-"}
}
// FromData will find and optionally verify Slack secrets in a given set of bytes.
func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (results []detectors.Result, err error) {
dataStr := string(data)
for _, tokenPat := range tokenPats {
tokens := tokenPat.FindAllString(dataStr, -1)
for _, token := range tokens {
s := detectors.Result{
DetectorType: detectorspb.DetectorType_Slack,
Raw: []byte(token),
}
if verify {
client := common.SaneHttpClient()
req, err := http.NewRequestWithContext(ctx, "POST", verifyURL, nil)
if err != nil {
continue
}
req.Header.Add("Content-Type", "application/json; charset=utf-8")
req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", token))
res, err := client.Do(req)
if err == nil {
defer res.Body.Close()
var authResponse authRes
if err := json.NewDecoder(res.Body).Decode(&authResponse); err != nil {
continue
}
s.Verified = authResponse.Ok
}
}
results = append(results, s)
}
}
return
}