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re-impl of js eval function because wtf js

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This commit is contained in:
minjaesong
2020-10-28 14:28:36 +09:00
parent 778c8bd918
commit 939940e784
2 changed files with 15 additions and 14 deletions
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11
assets/JS_INIT.js
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@@ -268,10 +268,15 @@ if ('function' !== typeof Array.prototype.reduceRight) {
}; };
} }
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////////////////////
// NOTE TO PROGRAMMERS: this JS_INIT script does not, and must not be invoked with strict mode //
///////////////////////////////////////////////////////////////////////////////////////////////////
load = undefined load = undefined;
loadWithNewGlobal = undefined loadWithNewGlobal = undefined;
var eval = function(s) { // installing new eval function
return Function('"use strict";return(function(){'+s+'}())')();
}
// //
function javaArrayToJs(jarr) { function javaArrayToJs(jarr) {
if (!jarr.toString.startsWith("[")) return jarr; if (!jarr.toString.startsWith("[")) return jarr;

18
src/net/torvald/tsvm/VMRunnerFactory.kt
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@@ -1,8 +1,6 @@
package net.torvald.tsvm package net.torvald.tsvm
import jdk.nashorn.api.scripting.NashornScriptEngineFactory import jdk.nashorn.api.scripting.NashornScriptEngineFactory
import jdk.nashorn.api.scripting.ScriptUtils
import jdk.nashorn.internal.runtime.regexp.joni.Syntax.Java
import net.torvald.tsvm.peripheral.GraphicsAdapter import net.torvald.tsvm.peripheral.GraphicsAdapter
import net.torvald.tsvm.vdc.Videotron2K import net.torvald.tsvm.vdc.Videotron2K
import java.io.FileReader import java.io.FileReader
@@ -68,7 +66,7 @@ object VMRunnerFactory {
init { init {
val engineFactory = NashornScriptEngineFactory() val engineFactory = NashornScriptEngineFactory()
engine = engineFactory.getScriptEngine("-strict", "--no-java", "--no-syntax-extensions", "--language=es6") engine = engineFactory.getScriptEngine("--no-java", "--no-syntax-extensions", "--language=es6")
assertNotNull(engine, "Script engine for extension $extension not found") assertNotNull(engine, "Script engine for extension $extension not found")
} }
@@ -83,17 +81,15 @@ object VMRunnerFactory {
bind.put("base64", Base64Delegate()) bind.put("base64", Base64Delegate())
bind.put("com", SerialHelperDelegate(vm)) bind.put("com", SerialHelperDelegate(vm))
if (extension == "js") { val fr = FileReader("./assets/JS_INIT.js")
val fr = FileReader("./assets/JS_INIT.js") val prg = fr.readText()
val prg = fr.readText() fr.close()
fr.close() engine.eval(sanitiseJS(prg), context)
engine.eval(sanitiseJS(prg), context)
}
} }
override suspend fun executeCommand(command: String) { override suspend fun executeCommand(command: String) {
try { try {
engine.eval("\"use strict\";" + encapsulateJS(sanitiseJS(command)), context) engine.eval(encapsulateJS(sanitiseJS(command)), context)
} }
catch (e: javax.script.ScriptException) { catch (e: javax.script.ScriptException) {
System.err.println("ScriptException from the script:") System.err.println("ScriptException from the script:")
@@ -113,6 +109,6 @@ object VMRunnerFactory {
private fun sanitiseJS(code: String) = code//.replace("\\", "\\\\") private fun sanitiseJS(code: String) = code//.replace("\\", "\\\\")
private fun encapsulateJS(code: String) = "(function(){$code})()" private fun encapsulateJS(code: String) = "\"use strict\";(function(){$code})()"
} }