tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_bug381412.euc-kr.js (1807B)

      1 const charset = "EUC-KR";
      2 
      3 function dumpStrings(inString, outString) {
      4  var dispIn = "";
      5  var dispOut = "";
      6  var i;
      7  for (i = 0; i < inString.length; ++i) {
      8    dispIn += " x" + inString.charCodeAt(i).toString(16);
      9  }
     10  if (!outString.length) {
     11    dispOut = "<empty>";
     12  } else {
     13    for (i = 0; i < outString.length; ++i) {
     14      dispOut += " x" + outString.charCodeAt(i).toString(16);
     15    }
     16  }
     17  dump('"' + dispIn + '" ==> "' + dispOut + '"\n');
     18 }
     19 
     20 function error(inString, outString, msg) {
     21  dumpStrings(inString, outString);
     22  do_throw("security risk: " + msg);
     23 }
     24 
     25 function run_test() {
     26  var ScriptableUnicodeConverter = Components.Constructor(
     27    "@mozilla.org/intl/scriptableunicodeconverter",
     28    "nsIScriptableUnicodeConverter"
     29  );
     30 
     31  var converter = new ScriptableUnicodeConverter();
     32  converter.charset = charset;
     33 
     34  var leadByte, trailByte;
     35  var inString;
     36  for (leadByte = 1; leadByte < 0x100; ++leadByte) {
     37    for (trailByte = 1; trailByte < 0x100; ++trailByte) {
     38      inString = String.fromCharCode(leadByte, trailByte, 65);
     39      var outString = converter.ConvertToUnicode(inString) + converter.Finish();
     40      switch (outString.length) {
     41        case 1:
     42          error(inString, outString, "2 byte sequence eaten");
     43          break;
     44        case 2:
     45          if (
     46            outString.charCodeAt(0) < 0x80 &&
     47            outString.charCodeAt(1) < 0x80
     48          ) {
     49            error(inString, outString, "2 byte sequence converted to 1 ASCII");
     50          }
     51          break;
     52        case 3:
     53          if (
     54            outString != inString &&
     55            outString.charCodeAt(0) < 0x80 &&
     56            outString.charCodeAt(1) < 0x80
     57          ) {
     58            error(inString, outString, "2 byte sequence converted to 2 ASCII");
     59          }
     60          break;
     61      }
     62    }
     63  }
     64 }