Fix x-forwareded-for header validation using apache commons-validation #13048
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Oshanath
requested review from
tharindu1st,
AnuGayan,
chamilaadhi,
Arshardh,
dushaniw and
tgtshanika
as code owners
📝 WalkthroughWalkthroughThis pull request introduces a new dependency, Changes
Sequence Diagram(s)sequenceDiagram
participant Agent as DataProcessAndPublishingAgent
participant Validator as InetAddressValidator
Agent->>Validator: isValidInet4Address(ipAddress)
Validator-->>Agent: returns boolean
Agent->>Validator: isValidInet6Address(ipAddress) [if IPv4 check fails]
Validator-->>Agent: returns boolean
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Actionable comments posted: 0
🧹 Nitpick comments (1)
components/apimgt/org.wso2.carbon.apimgt.gateway/src/main/java/org/wso2/carbon/apimgt/gateway/throttling/publisher/DataProcessAndPublishingAgent.java (1)
236-247: Good replacement of regex patterns with InetAddressValidator.Replacing custom regex patterns with Apache Commons Validator's
InetAddressValidatoris a significant improvement. This change:
- Utilizes a well-tested library for IP validation
- Improves code readability and maintainability
- Better handles edge cases in IP address validation
- Makes the code more robust against IP validation vulnerabilities
The flow logic remains the same while improving the validation mechanism.
One thing to consider is adding unit tests to verify this validation mechanism works as expected with various IP formats, especially since this PR addresses an issue related to x-forwarded-for header validation.
Would you like me to suggest a unit test implementation to validate this change?
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📒 Files selected for processing (2)
components/apimgt/org.wso2.carbon.apimgt.gateway/pom.xml(1 hunks)components/apimgt/org.wso2.carbon.apimgt.gateway/src/main/java/org/wso2/carbon/apimgt/gateway/throttling/publisher/DataProcessAndPublishingAgent.java(2 hunks)
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🔇 Additional comments (2)
components/apimgt/org.wso2.carbon.apimgt.gateway/pom.xml (1)
336-339:✅ Verification successful
Good addition of commons-validator dependency.
Adding the commons-validator library is a good choice for IP address validation. It provides robust and well-tested validation utilities that are more reliable than custom regex patterns.
However, I notice there's no explicit version specified for this dependency. This is fine if it's managed by a parent POM, but it's worth ensuring that a compatible and secure version is being used.
🏁 Script executed:
#!/bin/bash # Check which version of commons-validator is being used # Look for the version in the parent pom or dependencyManagement section grep -r "<commons-validator.version>" --include="*.xml" . grep -r "<artifactId>commons-validator</artifactId>" --include="*.xml" . -A 3Length of output: 1614
Dependency Version Management Verified
The addition of the commons-validator dependency looks great for IP address validation. I confirmed that while the dependency in the gateway's POM does not specify a version explicitly, the parent POM defines the
${commons-validator.version}property (currently set to 1.7) and manages the dependency centrally. This approach ensures consistency across modules while avoiding redundancy. Please ensure that version 1.7 remains compatible and secure in future updates.components/apimgt/org.wso2.carbon.apimgt.gateway/src/main/java/org/wso2/carbon/apimgt/gateway/throttling/publisher/DataProcessAndPublishingAgent.java (1)
9-9: Correctly added import for InetAddressValidator.Adding the import for
org.apache.commons.validator.routines.InetAddressValidatoris appropriate for the implementation changes that follow.
Related issue: wso2/api-manager#3759