WW-5368 Eliminate OGNL warnings for component field access in resource bundle expressions #1420
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Comprehensive research document analyzing the root cause of OGNL security warnings when using getText() with resource bundle keys starting with "label". Key findings: - UIBean has protected String label field without public getter - SecurityMemberAccess enforces public-only member access - OGNL property resolution happens before string concatenation evaluation - Warning is a false positive - expression works but triggers introspection Analysis includes: - Detailed OGNL evaluation flow through CompoundRootAccessor - SecurityMemberAccess check sequence and blocking mechanism - Select tag listValue processing and iterator stack manipulation - Comparison with similar protected fields in other components Recommended solution: Change protected fields to private with public getters to follow JavaBean conventions and eliminate warnings (Date component pattern). Related: WW-5364 added components package to OGNL allowlist (commit 39c3e33) Closes [WW-5368](https://issues.apache.org/jira/browse/WW-5368) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Change UIBean and related component fields from protected to private
with public getters to prevent false-positive OGNL SecurityMemberAccess
warnings when evaluating expressions with resource bundle keys.
Previously, expressions like getText('label.key.'+top) would trigger
warnings: "Access to non-public [protected String UIBean.label] is blocked!"
because OGNL attempted to access protected fields directly.
Changes:
- UIBean: Changed label, name, value, id fields to private, added getters
- Bean, Param, Text, I18n: Changed name/value fields to private, added getters
- Updated all subclasses to use getters instead of direct field access
- Added test to verify OGNL can access fields via public getters
Fixes #WW-5368
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Co-Authored-By: Claude <noreply@anthropic.com>
lukaszlenart
requested review from
aleksandr-m,
jogep,
kusalk,
rgielen,
sdutry and
yasserzamani
Co-authored-by: Sebastian Peters <sebastian.peters@gmail.com>
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kusalk
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kusalk
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Are you sure this fixes the issue? It will definitely get rid of the log warnings now that we have a public getter, but does this not result in the expression resolving to the UIBean label when we don't actually intend it to?
| * introspection will find the public getter methods instead of attempting to access | ||
| * the fields directly, eliminating the false-positive security warnings. | ||
| */ | ||
| public void testNoOgnlWarningsForProtectedFields() { |
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The JavaDoc says this test verifies that no warnings were logged but I don't see anything verifying that (I'm not sure it's possible to do easily anyway)
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| protected Object bean; | ||
| protected String name; | ||
| private String name; |
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Having a public getter should already suppress the warning, this could stay as protected but I guess it doesn't really matter either way
Right, I didn't test it this way but I get the same doubts - I will test it during weekend and maybe having the warning isn't a bad thing |
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I re-tested the original issue and it's not a problem anymore, I didn't notice the warning when using |
lukaszlenart
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Summary
Fixes false-positive OGNL SecurityMemberAccess warnings when using resource bundle keys that start with component field names (label, name, value, id).
Previously, expressions like
getText('label.reasonOfTransaction.'+top)would trigger warnings:This occurred because OGNL's expression parser attempted to access
protectedfields directly when evaluating property names, even when those names were part of string literals ingetText()calls.Changes
label,name,value,idfields fromprotectedtoprivateand added public getter methodsname/valuefields toprivatewith public getterstestNoOgnlWarningsForProtectedFields()in UIBeanTest.javaBy using
privatefields with public getters, OGNL's introspection finds the public getter methods instead of attempting direct field access, eliminating the warnings while maintaining full functionality.Test Plan
getText('label.key'),getText('name.key'),getText('value.key')work correctlyRelated
Fixes WW-5368
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