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const charset = "EUC-JP";
const ScriptableUnicodeConverter = Components.Constructor(
"@mozilla.org/intl/scriptableunicodeconverter",
"nsIScriptableUnicodeConverter"
);
var gConverter;
function error(inString, outString, msg) {
var dispIn = "";
var dispOut = "";
var i;
for (i = 0; i < inString.length; ++i) {
dispIn += " x" + inString.charCodeAt(i).toString(16);
}
if (!outString.length) {
dispOut = "<empty>";
} else {
for (i = 0; i < outString.length; ++i) {
dispOut += " x" + outString.charCodeAt(i).toString(16);
}
}
dump('"' + dispIn + '" ==> "' + dispOut + '"\n');
do_throw("security risk: " + msg);
}
function IsASCII(charCode) {
return charCode <= 0x7e;
}
function IsNotGR(charCode) {
return charCode < 0xa1 || charCode > 0xfe;
}
function test(inString) {
var outString = gConverter.ConvertToUnicode(inString) + gConverter.Finish();
var outLen = outString.length;
if (
IsASCII(inString.charCodeAt(1)) &&
inString.charCodeAt(1) != outString.charCodeAt(outLen - 5)
) {
error(inString, outString, "ASCII second byte eaten");
} else if (
IsASCII(inString.charCodeAt(2)) &&
inString.charCodeAt(2) != outString.charCodeAt(outLen - 4)
) {
error(inString, outString, "ASCII third byte eaten");
} else if (
inString.charCodeAt(0) == 0x8f &&
inString.charCodeAt(1) > 0x7f &&
IsNotGR(inString.charCodeAt(2)) &&
!(
outString.charCodeAt(outLen - 4) == 0xfffd ||
outString.charCodeAt(outLen - 4) == inString.charCodeAt(2)
)
) {
error(inString, outString, "non-GR third byte eaten");
}
}
function run_test() {
gConverter = new ScriptableUnicodeConverter();
gConverter.charset = charset;
var byte1, byte2, byte3;
for (byte1 = 1; byte1 < 0x100; ++byte1) {
for (byte2 = 1; byte2 < 0x100; ++byte2) {
if (byte1 == 0x8f) {
for (byte3 = 1; byte3 < 0x100; ++byte3) {
test(String.fromCharCode(byte1, byte2, byte3) + "foo");
}
} else {
test(String.fromCharCode(byte1, byte2) + " foo");
}
}
}
}
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