tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_bug715319.gb2312.js (2298B)

      1 const charset = "GB2312";
      2 const ScriptableUnicodeConverter = Components.Constructor(
      3  "@mozilla.org/intl/scriptableunicodeconverter",
      4  "nsIScriptableUnicodeConverter"
      5 );
      6 var gConverter;
      7 
      8 function error(inString, outString, msg) {
      9  var dispIn = "";
     10  var dispOut = "";
     11  var i;
     12  for (i = 0; i < inString.length; ++i) {
     13    dispIn += " x" + inString.charCodeAt(i).toString(16);
     14  }
     15  if (!outString.length) {
     16    dispOut = "<empty>";
     17  } else {
     18    for (i = 0; i < outString.length; ++i) {
     19      dispOut += " x" + outString.charCodeAt(i).toString(16);
     20    }
     21  }
     22  dump('"' + dispIn + '" ==> "' + dispOut + '"\n');
     23  do_throw("security risk: " + msg);
     24 }
     25 
     26 function IsASCII(charCode) {
     27  return charCode <= 0x7e;
     28 }
     29 
     30 function test(inString) {
     31  var outString = gConverter.ConvertToUnicode(inString) + gConverter.Finish();
     32 
     33  var outLen = outString.length;
     34  for (var pos = 1; pos < 3; ++pos) {
     35    let outPos = outLen - (9 - pos);
     36    if (outPos < 0) {
     37      outPos = 0;
     38    }
     39    let c0 = inString.charCodeAt(0);
     40    let c1 = inString.charCodeAt(1);
     41    let c2 = inString.charCodeAt(2);
     42    let c3 = inString.charCodeAt(3);
     43    if (
     44      IsASCII(inString.charCodeAt(pos)) &&
     45      !(
     46        outString.charCodeAt(outPos) == inString.charCodeAt(pos) ||
     47        outString.charCodeAt(outPos) != 0xfffd ||
     48        // legal 4 byte range
     49        (0x81 <= c0 &&
     50          c0 <= 0xfe &&
     51          0x30 <= c1 &&
     52          c1 <= 0x39 &&
     53          0x81 <= c2 &&
     54          c2 <= 0xfe &&
     55          0x30 <= c3 &&
     56          c3 <= 0x39)
     57      )
     58    ) {
     59      dump("pos = " + pos + "; outPos = " + outPos + "\n");
     60      error(inString, outString, "ASCII input eaten");
     61    }
     62  }
     63 }
     64 
     65 function run_test() {
     66  gConverter = new ScriptableUnicodeConverter();
     67  gConverter.charset = charset;
     68 
     69  var byte1, byte2, byte3, byte4;
     70 
     71  // 2-byte
     72  for (byte1 = 1; byte1 < 0x100; ++byte1) {
     73    for (byte2 = 1; byte2 < 0x100; ++byte2) {
     74      test(String.fromCharCode(byte1, byte2) + "    foo");
     75    }
     76  }
     77  // 4-byte (limited)
     78  for (byte1 = 0x80; byte1 < 0x90; ++byte1) {
     79    for (byte2 = 0x20; byte2 < 0x40; ++byte2) {
     80      for (byte3 = 0x80; byte3 < 0x90; ++byte3) {
     81        for (byte4 = 0x20; byte4 < 0x40; ++byte4) {
     82          test(String.fromCharCode(byte1, byte2, byte3, byte4) + "  foo");
     83        }
     84      }
     85    }
     86  }
     87 }