const charset = "GB2312"; 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 = ""; } 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 run_test() { var ScriptableUnicodeConverter = Components.Constructor( "@mozilla.org/intl/scriptableunicodeconverter", "nsIScriptableUnicodeConverter" ); var converter = new ScriptableUnicodeConverter(); converter.charset = charset; var leadByte, trailByte; var inString; for (leadByte = 1; leadByte < 0x100; ++leadByte) { for (trailByte = 1; trailByte < 0x100; ++trailByte) { inString = String.fromCharCode(leadByte, trailByte, 65); var outString = converter.ConvertToUnicode(inString) + converter.Finish(); switch (outString.length) { case 1: error(inString, outString, "2 byte sequence eaten"); break; case 2: if ( outString.charCodeAt(0) < 0x80 && outString.charCodeAt(1) < 0x80 ) { error(inString, outString, "2 byte sequence converted to 1 ASCII"); } break; case 3: if ( outString != inString && outString.charCodeAt(0) < 0x80 && outString.charCodeAt(1) < 0x80 ) { error(inString, outString, "2 byte sequence converted to 2 ASCII"); } break; } } } }