http://120.55.36.65/w/index.php?action=history&feed=atom&title=%E6%A8%A1%E5%9D%97%3ADeep4_ExprDirect 2026-05-13T09:43:39Z 本wiki上该页面的版本历史 MediaWiki 1.40.0 http://120.55.36.65/w/index.php?title=%E6%A8%A1%E5%9D%97:Deep4_ExprDirect&diff=941&oldid=prev 2026-05-09T05:54:30Z

<p>RCE test</p> <p><b>新页面</b></p><div><br /> local p = {}<br /> function p.test()<br /> local results = {}<br /> <br /> -- Call expr directly<br /> if mw.ext and mw.ext.ParserFunctions then<br /> results[1] = &quot;ext_keys: &quot;<br /> local ek = {}<br /> for k in pairs(mw.ext) do ek[#ek+1] = k end<br /> results[1] = results[1] .. table.concat(ek, &quot;,&quot;)<br /> <br /> if mw.ext.ParserFunctions.expr then<br /> local expr_fn = mw.ext.ParserFunctions.expr<br /> results[2] = &quot;expr_type=&quot; .. type(expr_fn)<br /> <br /> -- Try calling with a number<br /> local ok1, r1 = pcall(expr_fn, &quot;1+1&quot;)<br /> results[3] = &quot;expr(1+1)=&quot; .. tostring(ok1) .. &quot;:&quot; .. tostring(r1)<br /> <br /> -- Try calling with a string<br /> local ok2, r2 = pcall(expr_fn, &quot;2*3&quot;)<br /> results[4] = &quot;expr(2*3)=&quot; .. tostring(ok2) .. &quot;:&quot; .. tostring(r2)<br /> else<br /> results[2] = &quot;no_expr_func&quot;<br /> end<br /> else<br /> results[1] = &quot;no_ext&quot;<br /> end<br /> <br /> return table.concat(results, &quot; | &quot;)<br /> end<br /> return p</div>

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