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Namespace restriction for source= queries is inert: smwAskParserFunction/smwShowParserFunction hooks do not exist

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难度
5/5
预计耗时
一周以上
新手友好度
45/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
冷清
技术栈
php
领域
backend

调研方向

从 src/HookRegistry.php 开始,检查已注册的 smwAskParserFunction 和 smwShowParserFunction 处理器。确认受支持的 Semantic MediaWiki hook 是否可以检查或覆盖 #ask 和 #show 调用,然后查看 HookRegistryTest.php。通过受支持的路径使 namespace 限制生效,或更新无用的处理器和文档,并提供回归测试覆盖,即视为完成。

由索引模型根据 Issue 内容生成。

描述

Summary

HookRegistry registers handlers for two hook names — smwAskParserFunction and smwShowParserFunction — that do not exist in Semantic MediaWiki. As a result, the feature they implement (restricting source= queries to $seqlgExternalQueryEnabledNamespaces) never runs.

Details

src/HookRegistry.php registers a handler under both names:

$this->handlers['smwAskParserFunction'] = $this->handlers['smwShowParserFunction'] = static function ( $parser, $frame, $args, &$override ) {
    // ... sets:
    //   $override = 'Warning: source parameter is not allowed in the namespace!'
    // when the page's namespace is not in $GLOBALS['seqlgExternalQueryEnabledNamespaces']
};

This only does anything if Semantic MediaWiki fires hooks literally named smwAskParserFunction / smwShowParserFunction. Those names appear nowhere in the Semantic MediaWiki source tree, nor anywhere in its Git history, so the handlers are never invoked. The #ask / #show execution path (AskParserFunction / ShowParserFunction) does not run a hook of that name.

Impact

The $seqlgExternalQueryEnabledNamespaces namespace restriction is silently inert: a {{#ask: … |source=… }} (or {{#show:}}) query is not blocked in disallowed namespaces, contrary to what the setting documents.

This is pre-existing (identical on the current released code and on the SMW 7.0 branch) and was discovered during the SMW 7.0 migration (#44). The test suite does not catch it because HookRegistryTest only asserts the InterwikiLoadPrefix handler is registered, not that the ask/show guard fires.

Suggested next steps

  • Confirm whether Semantic MediaWiki exposes an equivalent hook in a supported version that allows inspecting/overriding #ask / #show parser-function invocations, and rewire the namespace guard to it; or
  • If no such hook exists, remove the dead handlers and either implement the namespace restriction by another mechanism or update the $seqlgExternalQueryEnabledNamespaces documentation accordingly.
  • Add test coverage for whichever path is chosen so the guard cannot silently regress again.
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PHP
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