org.sonar.python.checks.cdk.UnrestrictedOutboundCommunicationsCheck Maven / Gradle / Ivy
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/*
* SonarQube Python Plugin
* Copyright (C) 2011-2024 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Sonar Source-Available License for more details.
*
* You should have received a copy of the Sonar Source-Available License
* along with this program; if not, see https://sonarsource.com/license/ssal/
*/
package org.sonar.python.checks.cdk;
import java.util.List;
import java.util.Optional;
import org.sonar.check.Rule;
import org.sonar.plugins.python.api.SubscriptionContext;
import org.sonar.plugins.python.api.symbols.Symbol;
import org.sonar.plugins.python.api.tree.CallExpression;
import static org.sonar.python.checks.cdk.CdkPredicate.isTrue;
import static org.sonar.python.checks.cdk.CdkUtils.getArgument;
@Rule(key = "S6463")
public class UnrestrictedOutboundCommunicationsCheck extends AbstractCdkResourceCheck {
public static final String OMITTING_MESSAGE = "Omitting \"allow_all_outbound\" enables unrestricted outbound communications. Make sure it is safe here.";
public static final String UNRESTRICTED_MESSAGE = "Make sure that allowing unrestricted outbound communications is safe here.";
private static final String SECURITY_GROUP_FQN = "aws_cdk.aws_ec2.SecurityGroup";
@Override
protected void registerFqnConsumer() {
checkFqns(List.of(SECURITY_GROUP_FQN, "aws_cdk.aws_ec2.SecurityGroup.from_security_group_id"), (subscriptionContext, callExpression) ->
getArgument(subscriptionContext, callExpression, "allow_all_outbound").ifPresentOrElse(
argument -> argument.addIssueIf(isTrue(), UNRESTRICTED_MESSAGE),
() -> raiseIssue(subscriptionContext, callExpression)
)
);
}
private static void raiseIssue(SubscriptionContext subscriptionContext, CallExpression callExpression) {
Optional.ofNullable(callExpression.calleeSymbol())
.map(Symbol::fullyQualifiedName)
.filter(fqn -> fqn.equals(SECURITY_GROUP_FQN))
.ifPresent(s -> subscriptionContext.addIssue(callExpression.callee(), OMITTING_MESSAGE));
}
}