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fix: fallback on VPC #13567

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Merged
mutianf merged 4 commits into from
Jun 29, 2026
+17 −2
Merged

fix: fallback on VPC #13567

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3df0864
fix: fallback on VPC
mutianf Jun 29, 2026
631ca36
update error message
mutianf Jun 29, 2026
fc5dd88
nit
mutianf Jun 29, 2026
46589ed
nit
mutianf Jun 29, 2026
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19 changes: 17 additions & 2 deletions ...c/main/java/com/google/cloud/bigtable/data/v2/internal/dp/ClassicDirectAccessChecker.java
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
import io.grpc.ManagedChannel;
import io.grpc.Status.Code;
import io.grpc.StatusRuntimeException;
import java.util.Locale;
import java.util.Optional;
import java.util.concurrent.ScheduledExecutorService;
import java.util.logging.Level;
Expand Down Expand Up @@ -74,6 +75,15 @@ public boolean check(Channel channel) {
}
}

/** Checks if the exception is due to a VPC Service Controls policy violation. */
private boolean isVpcServiceControlsViolation(StatusRuntimeException e) {
String description = e.getStatus().getDescription();
String message = e.getMessage();
String expected = "request is prohibited by organization's policy";
return (description != null && description.toLowerCase(Locale.ROOT).contains(expected))
|| (message != null && message.toLowerCase(Locale.ROOT).contains(expected));
}

/** Executes the underlying RPC and evaluates the eligibility. */
private boolean evaluateEligibility(Channel channel) {
MetadataExtractorInterceptor interceptor = createInterceptor();
Expand All @@ -91,8 +101,13 @@ private boolean evaluateEligibility(Channel channel) {
if (e.getStatus().getCode() != Code.PERMISSION_DENIED) {
throw e;
}
// Failed with permission error, resorting to ALTS check.
isEligible = sidebandData.isAlts();

if (isVpcServiceControlsViolation(e)) {
LOG.log(Level.WARNING, "DirectPath is blocked by a perimeter policy violation.");
} else {
// Failed with standard permission error, resorting to ALTS check.
isEligible = sidebandData.isAlts();
}
}

if (isEligible) {
Expand Down
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