CLOUDP-320359: redact snapshot data (#3909)

Author: blva

test/e2e/testdata/.snapshots/TestLinkToken/Create/POST__api_atlas_v2_orgs_a0123456789abcdef012345a_liveMigrations_linkTokens_1.snaphost

@@ -1,5 +1,5 @@
 HTTP/2.0 201 Created
-Content-Length: 208
+Content-Length: 29
 Content-Type: application/vnd.atlas.2023-01-01+json;charset=utf-8
 Date: Mon, 12 May 2025 05:08:20 GMT
 Referrer-Policy: strict-origin-when-cross-origin
@@ -13,4 +13,4 @@ X-Java-Version: 17.0.14+7
 X-Mongodb-Service-Version: gitHash=b4fa165bfbcb725abc0816ef770e5f595c0528ce; versionString=master
 X-Permitted-Cross-Domain-Policies: none
 
-{"linkToken":"eyJvcmdJZCI6IjVlZmRhNjgyYTNmMmVkMmU3ZGQ2Y2RlNCIsIm9yZ05hbWUiOiJBdGxhcyBDTEkgRTJFIiwicHJpdmF0ZUFwaUtleSI6ImI4Y2QxMDUzLWUxZDYtNGRlZS04MTYxLWViODMwMDA2YTA4YiIsInB1YmxpY0FwaUtleSI6InhrdnNpZ3NuIn0="}
+{"linkToken":"redactedToken"}

test/internal/atlas_e2e_test_generator.go

@@ -33,6 +33,7 @@ import (
 	"os/exec"
 	"path"
 	"path/filepath"
+	"regexp"
 	"slices"
 	"strconv"
 	"strings"
@@ -43,6 +44,7 @@ import (
 )
 
 const updateSnapshotsEnvVarKey = "UPDATE_SNAPSHOTS"
+const redactedToken = "redactedToken"
 
 type snapshotMode int
 
@@ -524,6 +526,8 @@ func (g *AtlasE2ETestGenerator) maskString(s string) string {
 	o = strings.ReplaceAll(o, os.Getenv("E2E_FLEX_INSTANCE_NAME"), "test-flex")
 	o = strings.ReplaceAll(o, os.Getenv("E2E_TEST_BUCKET"), "test-bucket")
 	o = strings.ReplaceAll(o, g.snapshotTargetURI, "http://localhost:8080/")
+	o = replaceLinkToken(o)
+
 	return o
 }
 
@@ -661,6 +665,17 @@ func (g *AtlasE2ETestGenerator) prepareSnapshot(r *http.Response) *http.Response
 	return resp
 }
 
+func replaceLinkToken(out string) string {
+	if !strings.Contains(out, `"linkToken"`) {
+		return out
+	}
+
+	redactedObject := []byte(`{"linkToken":"` + redactedToken + `"}`)
+
+	jsonObjectRe := regexp.MustCompile(`\{[^{]*"linkToken"\s*:\s*"[^"]*"[^}]*\}`)
+	return string(jsonObjectRe.ReplaceAll([]byte(out), redactedObject))
+}
+
 func (g *AtlasE2ETestGenerator) storeSnapshot(r *http.Response) {
 	g.t.Helper()