fix(oscar): escape SQL identifiers and literals in metadata/DDL paths (#1914)#2202
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fix(oscar): escape SQL identifiers and literals in metadata/DDL paths (#1914)#2202HandSonic wants to merge 5 commits into
HandSonic wants to merge 5 commits into
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…tainer review (OtterMind#1914) - strengthen OscarIdentifierProcessor: shared INSTANCE, escapeString with single-quote doubling, static escapeIdentifier for quoted-template content - OscarMetaData call sites use getSQLIdentifierProcessor().escapeString(...) - non-escapable validation moved to OscarSqlGuards (default expressions, length units, sort orders) - OscarSqlEscapes removed; tests migrated (15 green)
…e for DDL paths (OtterMind#1914) - quoteIdentifier(String) is conditional again: null/blank pass through, valid non-keyword identifiers return unquoted, everything else wraps with embedded-quote doubling; versioned overload delegates to it - new quoteIdentifierAlways(String) carries the old always-quote SqlEscapes semantics (null -> null, else wrap with doubling) - quoteIdentifierIgnoreCase keeps its SPI always-quote, case-preserving meaning by delegating to quoteIdentifierAlways, so DDL-generation sites (OscarUtils/builers/enums) keep emitting quoted identifiers - tests cover conditional and always behaviors incl. null passthrough (15 green)
…gex alert (OtterMind#1914) '([^']|'')*' -> '[^']*(?:''[^']*)*' (same language, no backtracking)
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
…eDoS) (OtterMind#1914) Regexes for quoted literals and function-call defaults are replaced by O(n) character scanners; numeric/keyword patterns (simple classes) stay.
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Part of the SQL-injection hardening tracked in #1914. Prior art: #2052 (Oracle), #2053 (SQL Server), and the wave-1 batch (#2172-#2177).
These are second-order injection paths: values such as table/schema/view/index names originate from the connected database's own metadata, so exploitation requires a maliciously named object in a target database.
What changed (9 sites)
OscarMetaData 5 literal sites escaped; DEFAULT/unit/sort-order whitelists accept legitimate quoted defaults; identifier processor routes through quoteIdentifier with doubling.
Verification
mvn -B -pl chat2db-community-plugins/chat2db-community-oscar -f chat2db-community-server/pom.xml -Dmaven.test.skip=false -DskipTests=false -Dsurefire.includes=**/*Test.java -Dsurefire.failIfNoSpecifiedTests=false -Dmaven.test.failure.ignore=false testResult: Tests run: 14, Failures: 0, Errors: 0, Skipped: 0.
This branch also passed a two-lens adversarial review (escape-correctness/coverage + regression/test-efficacy); all blocking findings were fixed and re-tested before submission.