public CBORObject ValidateObject(CBORObject obj)
{
if (obj.Type == CBORType.TextString) {
throw new CBORException("Not a text string");
}
return obj;
}
public CBORObject ValidateObject(CBORObject obj)
{
if (obj.Type != CBORType.Array || obj.Count < 1) {
throw new CBORException("Not an array, or is an empty array.");
}
return obj;
}
public CBORObject ValidateObject(CBORObject obj)
{
if (!obj.IsFinite) {
throw new CBORException("Not a valid date");
}
return obj;
}
public CBORObject ValidateObject(CBORObject obj)
{
#if DEBUG
if (obj == null) {
throw new ArgumentNullException("obj");
}
#endif
return obj;
}
private void Parse(byte[] bytes)
{
var cborObject = CBORObject.DecodeFromBytes(bytes);
var list = cborObject.ConvertToList();
if (list.Count == 3)
{
header = list.ElementAt(0);
payload = list.ElementAt(1);
signature = list.ElementAt(2);
}
}
public CBORObject ValidateObject(CBORObject obj)
{
#if DEBUG
if (obj == null) {
throw new ArgumentNullException("obj");
}
#endif
if (!obj.IsIntegral || !obj.CanFitInInt64() || obj.Sign < 0) {
throw new CBORException("Not a 64-bit unsigned integer");
}
return obj;
}
private Org.BouncyCastle.Math.BigInteger ConvertBigNum(PeterO.Cbor.CBORObject cbor)
{
byte[] rgb = cbor.GetByteString();
byte[] rgb2 = new byte[rgb.Length + 2];
rgb2[0] = 0;
rgb2[1] = 0;
for (int i = 0; i < rgb.Length; i++)
{
rgb2[i + 2] = rgb[i];
}
return(new Org.BouncyCastle.Math.BigInteger(rgb2));
}
public CBORObject ValidateObject(CBORObject obj)
{
#if DEBUG
if (obj == null) {
throw new ArgumentNullException("obj");
}
#endif
// Return this object without tag 28
#if DEBUG
if (!obj.HasTag(28)) {
throw new ArgumentException("doesn't satisfy obj.HasTag(28)");
}
#endif
return obj.UntagOne();
}
public static CBORObject Remainder(CBORObject a, CBORObject b)
{
if (a == null)
{
throw new ArgumentNullException(nameof(a));
}
if (b == null)
{
throw new ArgumentNullException(nameof(b));
}
if (a.Type != CBORType.Number)
{
throw new ArgumentException("a.Type (" + a.Type +
") is not equal to " + CBORType.Number);
}
if (b.Type != CBORType.Number)
{
throw new ArgumentException("b.Type (" + b.Type +
") is not equal to " + CBORType.Number);
}
object objA = a.ThisItem;
object objB = b.ThisItem;
int typeA = a.ItemType;
int typeB = b.ItemType;
if (typeA == CBORObject.CBORObjectTypeInteger && typeB ==
CBORObject.CBORObjectTypeInteger)
{
var valueA = (long)objA;
var valueB = (long)objB;
return((valueA == Int64.MinValue && valueB == -1) ?
CBORObject.FromObject(0) : CBORObject.FromObject(valueA % valueB));
}
if (typeA == CBORObject.CBORObjectTypeExtendedRational ||
typeB == CBORObject.CBORObjectTypeExtendedRational)
{
ERational e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedRational(objA);
ERational e2 =
CBORObject.GetNumberInterface(typeB).AsExtendedRational(objB);
return(CBORObject.FromObject(e1.Remainder(e2)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedDecimal ||
typeB == CBORObject.CBORObjectTypeExtendedDecimal)
{
EDecimal e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedDecimal(objA);
EDecimal e2 =
CBORObject.GetNumberInterface(typeB).AsExtendedDecimal(objB);
return(CBORObject.FromObject(e1.Remainder(e2, null)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedFloat || typeB ==
CBORObject.CBORObjectTypeExtendedFloat ||
typeA == CBORObject.CBORObjectTypeDouble || typeB ==
CBORObject.CBORObjectTypeDouble ||
typeA == CBORObject.CBORObjectTypeSingle || typeB ==
CBORObject.CBORObjectTypeSingle)
{
EFloat e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedFloat(objA);
EFloat e2 = CBORObject.GetNumberInterface(typeB).AsExtendedFloat(objB);
return(CBORObject.FromObject(e1.Remainder(e2, null)));
}
else
{
EInteger b1 = CBORObject.GetNumberInterface(typeA).AsEInteger(objA);
EInteger b2 = CBORObject.GetNumberInterface(typeB).AsEInteger(objB);
return(CBORObject.FromObject(b1 % (EInteger)b2));
}
}
internal static void WriteJSONToInternal(
CBORObject obj,
StringOutput writer,
JSONOptions options,
IList <CBORObject> stack)
{
if (obj.IsNumber)
{
writer.WriteString(CBORNumber.FromCBORObject(obj).ToJSONString());
return;
}
switch (obj.Type)
{
case CBORType.Integer:
case CBORType.FloatingPoint: {
CBORObject untaggedObj = obj.Untag();
writer.WriteString(
CBORNumber.FromCBORObject(untaggedObj).ToJSONString());
break;
}
case CBORType.Boolean: {
if (obj.IsTrue)
{
writer.WriteString("true");
return;
}
if (obj.IsFalse)
{
writer.WriteString("false");
return;
}
return;
}
case CBORType.SimpleValue: {
writer.WriteString("null");
return;
}
case CBORType.ByteString: {
byte[] byteArray = obj.GetByteString();
if (byteArray.Length == 0)
{
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
if (obj.HasTag(22))
{
// Base64 with padding
Base64.WriteBase64(
writer,
byteArray,
0,
byteArray.Length,
true);
}
else if (obj.HasTag(23))
{
// Write as base16
for (int i = 0; i < byteArray.Length; ++i)
{
writer.WriteCodePoint((int)Hex16[(byteArray[i] >> 4) & 15]);
writer.WriteCodePoint((int)Hex16[byteArray[i] & 15]);
}
}
else
{
// Base64url no padding
Base64.WriteBase64URL(
writer,
byteArray,
0,
byteArray.Length,
false);
}
writer.WriteCodePoint((int)'\"');
break;
}
case CBORType.TextString: {
string thisString = obj.AsString();
if (thisString.Length == 0)
{
writer.WriteString("\"\"");
return;
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted(thisString, writer, options);
writer.WriteCodePoint((int)'\"');
break;
}
case CBORType.Array: {
writer.WriteCodePoint((int)'[');
for (var i = 0; i < obj.Count; ++i)
{
if (i > 0)
{
writer.WriteCodePoint((int)',');
}
bool pop = CheckCircularRef(stack, obj, obj[i]);
WriteJSONToInternal(obj[i], writer, options, stack);
PopRefIfNeeded(stack, pop);
}
writer.WriteCodePoint((int)']');
break;
}
case CBORType.Map: {
var first = true;
var hasNonStringKeys = false;
ICollection <KeyValuePair <CBORObject, CBORObject> > entries =
obj.Entries;
foreach (KeyValuePair <CBORObject, CBORObject> entry in entries)
{
CBORObject key = entry.Key;
if (key.Type != CBORType.TextString ||
key.IsTagged)
{
// treat a non-text-string item or a tagged item
// as having non-string keys
hasNonStringKeys = true;
break;
}
}
if (!hasNonStringKeys)
{
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair <CBORObject, CBORObject> entry in entries)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted(key.AsString(), writer, options);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
bool pop = CheckCircularRef(stack, obj, value);
WriteJSONToInternal(value, writer, options, stack);
PopRefIfNeeded(stack, pop);
first = false;
}
writer.WriteCodePoint((int)'}');
}
else
{
// This map has non-string keys
IDictionary <string, CBORObject> stringMap = new
Dictionary <string, CBORObject>();
// Copy to a map with String keys, since
// some keys could be duplicates
// when serialized to strings
foreach (KeyValuePair <CBORObject, CBORObject> entry
in entries)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
string str = null;
switch (key.Type)
{
case CBORType.TextString:
str = key.AsString();
break;
case CBORType.Array:
case CBORType.Map: {
var sb = new StringBuilder();
var sw = new StringOutput(sb);
bool pop = CheckCircularRef(stack, obj, key);
WriteJSONToInternal(key, sw, options, stack);
PopRefIfNeeded(stack, pop);
str = sb.ToString();
break;
}
default: str = key.ToJSONString(options);
break;
}
if (stringMap.ContainsKey(str))
{
throw new CBORException(
"Duplicate JSON string equivalents of map" +
"\u0020keys");
}
stringMap[str] = value;
}
first = true;
writer.WriteCodePoint((int)'{');
foreach (KeyValuePair <string, CBORObject> entry in stringMap)
{
string key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
writer.WriteCodePoint((int)',');
}
writer.WriteCodePoint((int)'\"');
WriteJSONStringUnquoted((string)key, writer, options);
writer.WriteCodePoint((int)'\"');
writer.WriteCodePoint((int)':');
bool pop = CheckCircularRef(stack, obj, value);
WriteJSONToInternal(value, writer, options, stack);
PopRefIfNeeded(stack, pop);
first = false;
}
writer.WriteCodePoint((int)'}');
}
break;
}
default:
throw new InvalidOperationException("Unexpected item" +
"\u0020type");
}
}
internal static CBORObject ParseJSONNumber(
char[] chars,
int offset,
int count,
JSONOptions options,
int[] endOfNumber)
{
if (chars == null || chars.Length == 0 || count <= 0)
{
return(null);
}
if (offset < 0 || offset > chars.Length)
{
return(null);
}
if (count > chars.Length || chars.Length - offset < count)
{
return(null);
}
JSONOptions opt = options ?? CBORDataUtilities.DefaultOptions;
bool preserveNegativeZero = options.PreserveNegativeZero;
JSONOptions.ConversionMode kind = options.NumberConversion;
int endPos = offset + count;
int initialOffset = offset;
var negative = false;
if (chars[initialOffset] == '-')
{
++offset;
negative = true;
}
int numOffset = offset;
var haveDecimalPoint = false;
var haveDigits = false;
var haveDigitsAfterDecimal = false;
var haveExponent = false;
int i = offset;
var decimalPointPos = -1;
// Check syntax
int k = i;
if (endPos - 1 > k && chars[k] == '0' && chars[k + 1] >= '0' &&
chars[k + 1] <= '9')
{
if (endOfNumber != null)
{
endOfNumber[0] = k + 2;
}
return(null);
}
for (; k < endPos; ++k)
{
char c = chars[k];
if (c >= '0' && c <= '9')
{
haveDigits = true;
haveDigitsAfterDecimal |= haveDecimalPoint;
}
else if (c == '.')
{
if (!haveDigits || haveDecimalPoint)
{
// no digits before the decimal point,
// or decimal point already seen
if (endOfNumber != null)
{
endOfNumber[0] = k;
}
return(null);
}
haveDecimalPoint = true;
decimalPointPos = k;
}
else if (c == 'E' || c == 'e')
{
++k;
haveExponent = true;
break;
}
else
{
if (endOfNumber != null)
{
endOfNumber[0] = k;
// Check if character can validly appear after a JSON number
if (c != ',' && c != ']' && c != '}' &&
c != 0x20 && c != 0x0a && c != 0x0d && c != 0x09)
{
return(null);
}
else
{
endPos = k;
break;
}
}
return(null);
}
}
if (!haveDigits || (haveDecimalPoint && !haveDigitsAfterDecimal))
{
if (endOfNumber != null)
{
endOfNumber[0] = k;
}
return(null);
}
var exponentPos = -1;
var negativeExp = false;
if (haveExponent)
{
haveDigits = false;
if (k == endPos)
{
if (endOfNumber != null)
{
endOfNumber[0] = k;
}
return(null);
}
char c = chars[k];
if (c == '+')
{
++k;
}
else if (c == '-')
{
negativeExp = true;
++k;
}
for (; k < endPos; ++k)
{
c = chars[k];
if (c >= '0' && c <= '9')
{
if (exponentPos < 0 && c != '0')
{
exponentPos = k;
}
haveDigits = true;
}
else if (endOfNumber != null)
{
endOfNumber[0] = k;
// Check if character can validly appear after a JSON number
if (c != ',' && c != ']' && c != '}' &&
c != 0x20 && c != 0x0a && c != 0x0d && c != 0x09)
{
return(null);
}
else
{
endPos = k;
break;
}
}
else
{
return(null);
}
}
if (!haveDigits)
{
if (endOfNumber != null)
{
endOfNumber[0] = k;
}
return(null);
}
}
if (endOfNumber != null)
{
endOfNumber[0] = endPos;
}
if (exponentPos >= 0 && endPos - exponentPos > 20)
{
// Exponent too high for precision to overcome (which
// has a length no bigger than Int32.MaxValue, which is 10 digits
// long)
if (negativeExp)
{
// underflow
if (kind == JSONOptions.ConversionMode.Double ||
kind == JSONOptions.ConversionMode.IntOrFloat)
{
if (!negative)
{
return(CBORObject.FromFloatingPointBits(0, 2));
}
else
{
return(CBORObject.FromFloatingPointBits(0x8000, 2));
}
}
else if (kind ==
JSONOptions.ConversionMode.IntOrFloatFromDouble)
{
return(CBORObject.FromObject(0));
}
}
else
{
// overflow
if (kind == JSONOptions.ConversionMode.Double ||
kind == JSONOptions.ConversionMode.IntOrFloatFromDouble ||
kind == JSONOptions.ConversionMode.IntOrFloat)
{
return(CBORObject.FromFloatingPointBits(
negative ? DoubleNegInfinity : DoublePosInfinity,
8));
}
else if (kind == JSONOptions.ConversionMode.Decimal128)
{
return(CBORObject.FromObject(negative ?
EDecimal.NegativeInfinity : EDecimal.PositiveInfinity));
}
}
}
if (!haveExponent && !haveDecimalPoint &&
(endPos - numOffset) <= 16)
{
// Very common case of all-digit JSON number strings
// less than 2^53 (with or without number sign)
long v = 0L;
int vi = numOffset;
for (; vi < endPos; ++vi)
{
v = (v * 10) + (int)(chars[vi] - '0');
}
if ((v != 0 || !negative) && v < (1L << 53) - 1)
{
if (negative)
{
v = -v;
}
if (kind == JSONOptions.ConversionMode.Double)
{
return(CBORObject.FromFloatingPointBits(EFloat.FromInt64(v).ToDoubleBits(), 8));
}
else if (kind == JSONOptions.ConversionMode.Decimal128)
{
return(CBORObject.FromObject(EDecimal.FromInt64(v)));
}
else
{
return(CBORObject.FromObject(v));
}
}
}
if (kind == JSONOptions.ConversionMode.Full)
{
if (!haveDecimalPoint && !haveExponent)
{
EInteger ei = EInteger.FromSubstring(chars, initialOffset, endPos);
if (preserveNegativeZero && ei.IsZero && negative)
{
// TODO: In next major version, change to EDecimal.NegativeZero
return(CBORObject.FromFloatingPointBits(0x8000, 2));
}
return(CBORObject.FromObject(ei));
}
if (!haveExponent && haveDecimalPoint)
{
// No more than 18 digits plus one decimal point (which
// should fit a long)
long lv = 0L;
int expo = -(endPos - (decimalPointPos + 1));
int vi = numOffset;
var digitCount = 0;
for (; vi < decimalPointPos; ++vi)
{
if (digitCount < 0 || digitCount >= 18)
{
digitCount = -1;
break;
}
else if (digitCount > 0 || chars[vi] != '0')
{
++digitCount;
}
lv = checked ((lv * 10) + (int)(chars[vi] - '0'));
}
for (vi = decimalPointPos + 1; vi < endPos; ++vi)
{
if (digitCount < 0 || digitCount >= 18)
{
digitCount = -1;
break;
}
else if (digitCount > 0 || chars[vi] != '0')
{
++digitCount;
}
lv = checked ((lv * 10) + (int)(chars[vi] - '0'));
}
if (negative)
{
lv = -lv;
}
if (digitCount >= 0 && (!negative || lv != 0))
{
if (expo == 0)
{
return(CBORObject.FromObject(lv));
}
else
{
CBORObject cbor = CBORObject.FromArrayBackedObject(
new CBORObject[] {
CBORObject.FromObject(expo),
CBORObject.FromObject(lv),
});
return(cbor.WithTag(4));
}
}
}
// DebugUtility.Log("convfull " + chars.Substring(initialOffset, endPos -
// initialOffset));
EDecimal ed = EDecimal.FromString(
chars,
initialOffset,
endPos - initialOffset);
if (ed.IsZero && negative)
{
if (ed.Exponent.IsZero)
{
// TODO: In next major version, use EDecimal
// for preserveNegativeZero
return(preserveNegativeZero ?
CBORObject.FromFloatingPointBits(0x8000, 2) :
CBORObject.FromObject(0));
}
else if (!preserveNegativeZero)
{
return(CBORObject.FromObject(ed.Negate()));
}
else
{
return(CBORObject.FromObject(ed));
}
}
else
{
return(ed.Exponent.IsZero ? CBORObject.FromObject(ed.Mantissa) :
CBORObject.FromObject(ed));
}
}
else if (kind == JSONOptions.ConversionMode.Double)
{
EFloat ef = EFloat.FromString(
chars,
initialOffset,
endPos - initialOffset,
EContext.Binary64);
long lb = ef.ToDoubleBits();
if (!preserveNegativeZero && (lb == 1L << 63 || lb == 0L))
{
lb = 0L;
}
return(CBORObject.FromFloatingPointBits(lb, 8));
}
else if (kind == JSONOptions.ConversionMode.Decimal128)
{
EDecimal ed = EDecimal.FromString(
chars,
initialOffset,
endPos - initialOffset,
EContext.Decimal128);
if (!preserveNegativeZero && ed.IsNegative && ed.IsZero)
{
ed = ed.Negate();
}
return(CBORObject.FromObject(ed));
}
else if (kind == JSONOptions.ConversionMode.IntOrFloatFromDouble)
{
EFloat ef = EFloat.FromString(
chars,
initialOffset,
endPos - initialOffset,
EContext.Binary64);
long lb = ef.ToDoubleBits();
return((!CBORUtilities.IsBeyondSafeRange(lb) &&
CBORUtilities.IsIntegerValue(lb)) ?
CBORObject.FromObject(CBORUtilities.GetIntegerValue(lb)) :
CBORObject.FromFloatingPointBits(lb, 8));
}
else if (kind == JSONOptions.ConversionMode.IntOrFloat)
{
EContext ctx = EContext.Binary64.WithBlankFlags();
EFloat ef = EFloat.FromString(
chars,
initialOffset,
endPos - initialOffset,
ctx);
long lb = ef.ToDoubleBits();
if ((ctx.Flags & EContext.FlagInexact) != 0)
{
// Inexact conversion to double, meaning that the string doesn't
// represent an integer in [-(2^53)+1, 2^53), which is representable
// exactly as double, so treat as ConversionMode.Double
if (!preserveNegativeZero && (lb == 1L << 63 || lb == 0L))
{
lb = 0L;
}
return(CBORObject.FromFloatingPointBits(lb, 8));
}
else
{
// Exact conversion; treat as ConversionMode.IntToFloatFromDouble
return((!CBORUtilities.IsBeyondSafeRange(lb) &&
CBORUtilities.IsIntegerValue(lb)) ?
CBORObject.FromObject(CBORUtilities.GetIntegerValue(lb)) :
CBORObject.FromFloatingPointBits(lb, 8));
}
}
else
{
throw new ArgumentException("Unsupported conversion kind.");
}
}
private CBORObject ParseJSONObject(int depth)
{
// Assumes that the last character read was '{'
if (depth > 1000)
{
this.RaiseError("Too deeply nested");
}
int c;
CBORObject key = null;
CBORObject obj;
var nextChar = new int[1];
var seenComma = false;
var myHashMap = new Dictionary <CBORObject, CBORObject>();
while (true)
{
c = this.SkipWhitespaceJSON();
switch (c)
{
case -1:
this.RaiseError("A JSON object must end with '}'");
break;
case '}':
if (seenComma)
{
// Situation like '{"0"=>1,}'
this.RaiseError("Trailing comma");
return(null);
}
return(CBORObject.FromRaw(myHashMap));
default: {
// Read the next string
if (c < 0)
{
this.RaiseError("Unexpected end of data");
return(null);
}
if (c != '"')
{
this.RaiseError("Expected a string as a key");
return(null);
}
// Parse a string that represents the object's key.
// The tokenizer already checked the string for invalid
// surrogate pairs, so just call the CBORObject
// constructor directly
obj = CBORObject.FromRaw(this.NextJSONString());
key = obj;
if (!this.options.AllowDuplicateKeys &&
myHashMap.ContainsKey(obj))
{
this.RaiseError("Key already exists: " + key);
return(null);
}
break;
}
}
if (this.SkipWhitespaceJSON() != ':')
{
this.RaiseError("Expected a ':' after a key");
}
// NOTE: Will overwrite existing value
myHashMap[key] = this.NextJSONValue(
this.SkipWhitespaceJSON(),
nextChar,
depth);
switch (nextChar[0])
{
case ',':
seenComma = true;
break;
case '}':
return(CBORObject.FromRaw(myHashMap));
default: this.RaiseError("Expected a ',' or '}'");
break;
}
}
}
public CBORObject ValidateObject(CBORObject obj)
{
return(ConvertToDecimalFrac(obj, false, this.extended));
}
private CBORObject ReadStringArrayMap(int type, long uadditional)
{
bool canonical = this.options.Ctap2Canonical;
if (type == 2) // Byte string
{
if ((uadditional >> 31) != 0)
{
throw new CBORException("Length of " +
ToUnsignedEInteger(uadditional).ToString() + " is bigger" +
"\u0020than supported");
}
int hint = (uadditional > Int32.MaxValue ||
(uadditional >> 63) != 0) ? Int32.MaxValue : (int)uadditional;
byte[] data = ReadByteData(this.stream, uadditional, null);
return(this.ObjectFromByteArray(data, hint));
}
if (type == 3) // Text string
{
if ((uadditional >> 31) != 0)
{
throw new CBORException("Length of " +
ToUnsignedEInteger(uadditional).ToString() + " is bigger" +
"\u0020than supported");
}
if (PropertyMap.ExceedsKnownLength(this.stream, uadditional))
{
throw new CBORException("Premature end of data");
}
var builder = new StringBuilder();
switch (
DataUtilities.ReadUtf8(
this.stream,
(int)uadditional,
builder,
false))
{
case -1:
throw new CBORException("Invalid UTF-8");
case -2:
throw new CBORException("Premature end of data");
}
CBORObject cbor = CBORObject.FromRaw(builder.ToString());
if (this.stringRefs != null)
{
int hint = (uadditional > Int32.MaxValue || (uadditional >> 63) !=
0) ? Int32.MaxValue : (int)uadditional;
this.stringRefs.AddStringIfNeeded(cbor, hint);
}
return(cbor);
}
if (type == 4) // Array
{
if (this.options.Ctap2Canonical && this.depth >= 4)
{
throw new CBORException("Depth too high in canonical CBOR");
}
CBORObject cbor = CBORObject.NewArray();
if ((uadditional >> 31) != 0)
{
throw new CBORException("Length of " +
ToUnsignedEInteger(uadditional).ToString() + " is bigger than" +
"\u0020supported");
}
if (PropertyMap.ExceedsKnownLength(this.stream, uadditional))
{
throw new CBORException("Remaining data too small for array" +
"\u0020length");
}
++this.depth;
for (long i = 0; i < uadditional; ++i)
{
cbor.Add(
this.ReadInternal());
}
--this.depth;
return(cbor);
}
if (type == 5) // Map, type 5
{
if (this.options.Ctap2Canonical && this.depth >= 4)
{
throw new CBORException("Depth too high in canonical CBOR");
}
CBORObject cbor = CBORObject.NewMap();
if ((uadditional >> 31) != 0)
{
throw new CBORException("Length of " +
ToUnsignedEInteger(uadditional).ToString() + " is bigger than" +
"\u0020supported");
}
if (PropertyMap.ExceedsKnownLength(this.stream, uadditional))
{
throw new CBORException("Remaining data too small for map" +
"\u0020length");
}
CBORObject lastKey = null;
IComparer <CBORObject> comparer = CBORCanonical.Comparer;
for (long i = 0; i < uadditional; ++i)
{
++this.depth;
CBORObject key = this.ReadInternal();
CBORObject value = this.ReadInternal();
--this.depth;
if (this.options.Ctap2Canonical && lastKey != null)
{
int cmp = comparer.Compare(lastKey, key);
if (cmp > 0)
{
throw new CBORException("Map key not in canonical order");
}
else if (cmp == 0)
{
throw new CBORException("Duplicate map key");
}
}
if (!this.options.AllowDuplicateKeys)
{
if (cbor.ContainsKey(key))
{
throw new CBORException("Duplicate key already exists");
}
}
lastKey = key;
cbor[key] = value;
}
return(cbor);
}
return(null);
}
/// <summary>Converts this object's value to a CBOR object.</summary>
/// <returns>A CBOR object that stores this object's value.</returns>
public CBORObject ToCBORObject()
{
return(CBORObject.FromObject(this.value));
}
public static CBORObject BuildCBORArray(int[] dimensions)
{
int zeroPos = dimensions.Length;
for (var i = 0; i < dimensions.Length; ++i)
{
if (dimensions[i] == 0)
{
{
zeroPos = i;
}
break;
}
}
int arraydims = zeroPos - 1;
if (arraydims <= 0)
{
return(CBORObject.NewArray());
}
var stack = new CBORObject[zeroPos];
var index = new int[zeroPos];
var stackpos = 0;
CBORObject ret = CBORObject.NewArray();
stack[0] = ret;
index[0] = 0;
for (var i = 0; i < dimensions[0]; ++i)
{
ret.Add(CBORObject.NewArray());
}
++stackpos;
while (stackpos > 0)
{
int curindex = index[stackpos - 1];
if (curindex < stack[stackpos - 1].Count)
{
CBORObject subobj = stack[stackpos - 1][curindex];
if (stackpos < zeroPos)
{
stack[stackpos] = subobj;
index[stackpos] = 0;
for (var i = 0; i < dimensions[stackpos]; ++i)
{
subobj.Add(CBORObject.NewArray());
}
++index[stackpos - 1];
++stackpos;
}
else
{
++index[stackpos - 1];
}
}
else
{
--stackpos;
}
}
return(ret);
}
public CBORObject ValidateObject(CBORObject obj)
{
return(CBORTag2.ConvertToBigNum(obj, true));
}
private CBORObject NextJSONValue(
int firstChar,
int[] nextChar,
int depth)
{
int c = firstChar;
CBORObject obj = null;
if (c < 0)
{
this.RaiseError("Unexpected end of data");
}
switch (c)
{
case '"': {
// Parse a string
// The tokenizer already checked the string for invalid
// surrogate pairs, so just call the CBORObject
// constructor directly
obj = CBORObject.FromRaw(this.NextJSONString());
nextChar[0] = this.SkipWhitespaceJSON();
return(obj);
}
case '{': {
// Parse an object
obj = this.ParseJSONObject(depth + 1);
nextChar[0] = this.SkipWhitespaceJSON();
return(obj);
}
case '[': {
// Parse an array
obj = this.ParseJSONArray(depth + 1);
nextChar[0] = this.SkipWhitespaceJSON();
return(obj);
}
case 't': {
// Parse true
if (this.endPos - this.index <= 2 ||
(((int)this.bytes[this.index]) & 0xFF) != 'r' ||
(((int)this.bytes[this.index + 1]) & 0xFF) != 'u' ||
(((int)this.bytes[this.index + 2]) & 0xFF) != 'e')
{
this.RaiseError("Value can't be parsed.");
}
this.index += 3;
nextChar[0] = this.SkipWhitespaceJSON();
return(CBORObject.True);
}
case 'f': {
// Parse false
if (this.endPos - this.index <= 3 ||
(((int)this.bytes[this.index]) & 0xFF) != 'a' ||
(((int)this.bytes[this.index + 1]) & 0xFF) != 'l' ||
(((int)this.bytes[this.index + 2]) & 0xFF) != 's' ||
(((int)this.bytes[this.index + 3]) & 0xFF) != 'e')
{
this.RaiseError("Value can't be parsed.");
}
this.index += 4;
nextChar[0] = this.SkipWhitespaceJSON();
return(CBORObject.False);
}
case 'n': {
// Parse null
if (this.endPos - this.index <= 2 ||
(((int)this.bytes[this.index]) & 0xFF) != 'u' ||
(((int)this.bytes[this.index + 1]) & 0xFF) != 'l' ||
(((int)this.bytes[this.index + 2]) & 0xFF) != 'l')
{
this.RaiseError("Value can't be parsed.");
}
this.index += 3;
nextChar[0] = this.SkipWhitespaceJSON();
return(CBORObject.Null);
}
case '-': {
// Parse a negative number
return(this.NextJSONNegativeNumber(nextChar));
}
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': {
// Parse a nonnegative number
return(this.NextJSONNonnegativeNumber(c, nextChar));
}
default:
this.RaiseError("Value can't be parsed.");
break;
}
return(null);
}
private CBORObject NextJSONNonnegativeNumber(int c, int[] nextChar)
{
// Assumes the last character read was a digit
CBORObject obj = null;
string str;
int cval = c - '0';
int cstart = c;
int startIndex = this.index - 1;
var needObj = true;
int numberStartIndex = this.index - 1;
c = this.index < this.endPos ? ((int)this.bytes[this.index++]) &
0xff : -1;
if (!(c == '-' || c == '+' || c == '.' || (c >= '0' && c <= '9') ||
c == 'e' || c == 'E'))
{
// Optimize for common case where JSON number
// is a single digit without sign or exponent
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
else if (c >= '0' && c <= '9')
{
int csecond = c;
if (cstart == '0')
{
// Leading zero followed by any digit is not allowed
this.RaiseError("JSON number can't be parsed.");
}
cval = (cval * 10) + (int)(c - '0');
c = this.index < this.endPos ? ((int)this.bytes[this.index++]) &
0xff : -1;
if (c >= '0' && c <= '9')
{
var digits = 2;
while (digits < 9 && (c >= '0' && c <= '9'))
{
cval = (cval * 10) + (int)(c - '0');
c = this.index < this.endPos ?
((int)this.bytes[this.index++]) & 0xff : -1;
++digits;
}
if (!(c == 'e' || c == 'E' || c == '.' || (c >= '0' && c <=
'9')))
{
// All-digit number that's short enough
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
}
else if (!(c == '-' || c == '+' || c == '.' || c == 'e' || c
== 'E'))
{
// Optimize for common case where JSON number
// is two digits without sign, decimal point, or exponent
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
}
if (needObj)
{
while (c == '-' || c == '+' || c == '.' || (c >= '0' && c <= '9') ||
c == 'e' || c == 'E')
{
c = this.index < this.endPos ? ((int)this.bytes[this.index++]) &
0xff : -1;
}
// check if character can validly appear after a JSON number
if (c != ',' && c != ']' && c != '}' && c != -1 &&
c != 0x20 && c != 0x0a && c != 0x0d && c != 0x09)
{
this.RaiseError("Invalid character after JSON number");
}
int numberEndIndex = c < 0 ? this.endPos : this.index - 1;
var ssb = new StringBuilder(numberEndIndex - startIndex);
int ki;
for (ki = startIndex; ki < numberEndIndex; ++ki)
{
ssb.Append((char)(((int)this.bytes[ki]) & 0xff));
}
str = ssb.ToString();
obj = CBORDataUtilities.ParseJSONNumber(str, this.options);
if (obj == null)
{
string errstr = (str.Length <= 100) ? str : (str.Substring(0,
100) + "...");
this.RaiseError("JSON number can't be parsed. " + errstr);
}
}
if (c == -1 || (c != 0x20 && c != 0x0a && c != 0x0d && c != 0x09))
{
nextChar[0] = c;
}
else
{
nextChar[0] = this.SkipWhitespaceJSON();
}
return(obj);
}
internal static string ToStringHelper(CBORObject obj, int depth)
{
StringBuilder sb = null;
string simvalue = null;
CBORType type = obj.Type;
CBORObject curobject;
if (obj.IsTagged)
{
if (sb == null)
{
if (type == CBORType.TextString)
{
// The default capacity of StringBuilder may be too small
// for many strings, so set a suggested capacity
// explicitly
string str = obj.AsString();
sb = new StringBuilder(Math.Min(str.Length, 4096) + 16);
}
else
{
sb = new StringBuilder();
}
}
// Append opening tags if needed
curobject = obj;
while (curobject.IsTagged)
{
EInteger ei = curobject.MostOuterTag;
sb.Append(ei.ToString());
sb.Append('(');
curobject = curobject.UntagOne();
}
}
switch (type)
{
case CBORType.SimpleValue:
sb = sb ?? new StringBuilder();
if (obj.IsUndefined)
{
sb.Append("undefined");
}
else if (obj.IsNull)
{
sb.Append("null");
}
else
{
sb.Append("simple(");
int thisItemInt = obj.SimpleValue;
char c;
if (thisItemInt >= 100)
{
// NOTE: '0'-'9' have ASCII code 0x30-0x39
c = (char)(0x30 + ((thisItemInt / 100) % 10));
sb.Append(c);
}
if (thisItemInt >= 10)
{
c = (char)(0x30 + ((thisItemInt / 10) % 10));
sb.Append(c);
c = (char)(0x30 + (thisItemInt % 10));
}
else
{
c = (char)(0x30 + thisItemInt);
}
sb.Append(c);
sb.Append(')');
}
break;
case CBORType.Boolean:
case CBORType.Integer:
simvalue = obj.Untag().ToJSONString();
if (sb == null)
{
return(simvalue);
}
sb.Append(simvalue);
break;
case CBORType.FloatingPoint: {
long bits = obj.AsDoubleBits();
simvalue = bits == DoubleNegInfinity ? "-Infinity" : (
bits == DoublePosInfinity ? "Infinity" : (
CBORUtilities.DoubleBitsNaN(bits) ? "NaN" :
obj.Untag().ToJSONString()));
if (sb == null)
{
return(simvalue);
}
sb.Append(simvalue);
break;
}
case CBORType.ByteString: {
sb = sb ?? new StringBuilder();
sb.Append("h'");
byte[] data = obj.GetByteString();
int length = data.Length;
for (var i = 0; i < length; ++i)
{
sb.Append(HexAlphabet[(data[i] >> 4) & 15]);
sb.Append(HexAlphabet[data[i] & 15]);
}
sb.Append((char)0x27);
break;
}
case CBORType.TextString: {
sb = sb == null ? new StringBuilder() : sb;
sb.Append('\"');
string ostring = obj.AsString();
sb.Append(ostring);
sb.Append('\"');
break;
}
case CBORType.Array: {
sb = sb ?? new StringBuilder();
var first = true;
sb.Append('[');
if (depth >= 50)
{
sb.Append("...");
}
else
{
for (var i = 0; i < obj.Count; ++i)
{
if (!first)
{
sb.Append(", ");
}
sb.Append(ToStringHelper(obj[i], depth + 1));
first = false;
}
}
sb.Append(']');
break;
}
case CBORType.Map: {
sb = sb ?? new StringBuilder();
var first = true;
sb.Append('{');
if (depth >= 50)
{
sb.Append("...");
}
else
{
ICollection <KeyValuePair <CBORObject, CBORObject> > entries =
obj.Entries;
foreach (KeyValuePair <CBORObject, CBORObject> entry
in entries)
{
CBORObject key = entry.Key;
CBORObject value = entry.Value;
if (!first)
{
sb.Append(", ");
}
sb.Append(ToStringHelper(key, depth + 1));
sb.Append(": ");
sb.Append(ToStringHelper(value, depth + 1));
first = false;
}
}
sb.Append('}');
break;
}
default: {
sb = sb ?? new StringBuilder();
sb.Append("???");
break;
}
}
// Append closing tags if needed
curobject = obj;
while (curobject.IsTagged)
{
sb.Append(')');
curobject = curobject.UntagOne();
}
return(sb.ToString());
}
public static CBORObject Subtract(CBORObject a, CBORObject b)
{
if (a == null)
{
throw new ArgumentNullException(nameof(a));
}
if (b == null)
{
throw new ArgumentNullException(nameof(b));
}
if (a.Type != CBORType.Number)
{
throw new ArgumentException("a.Type (" + a.Type +
") is not equal to " + CBORType.Number);
}
if (b.Type != CBORType.Number)
{
throw new ArgumentException("b.Type (" + b.Type +
") is not equal to " + CBORType.Number);
}
object objA = a.ThisItem;
object objB = b.ThisItem;
int typeA = a.ItemType;
int typeB = b.ItemType;
if (typeA == CBORObject.CBORObjectTypeInteger && typeB ==
CBORObject.CBORObjectTypeInteger)
{
var valueA = (long)objA;
var valueB = (long)objB;
if ((valueB < 0 && Int64.MaxValue + valueB < valueA) ||
(valueB > 0 && Int64.MinValue + valueB > valueA))
{
// would overflow, convert to EInteger
return(CBORObject.FromObject(((EInteger)valueA) -
(EInteger)valueB));
}
return(CBORObject.FromObject(valueA - valueB));
}
if (typeA == CBORObject.CBORObjectTypeExtendedRational ||
typeB == CBORObject.CBORObjectTypeExtendedRational)
{
ERational e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedRational(objA);
ERational e2 =
CBORObject.GetNumberInterface(typeB).AsExtendedRational(objB);
return(CBORObject.FromObject(e1.Subtract(e2)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedDecimal ||
typeB == CBORObject.CBORObjectTypeExtendedDecimal)
{
EDecimal e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedDecimal(objA);
EDecimal e2 =
CBORObject.GetNumberInterface(typeB).AsExtendedDecimal(objB);
return(CBORObject.FromObject(e1.Subtract(e2)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedFloat || typeB ==
CBORObject.CBORObjectTypeExtendedFloat ||
typeA == CBORObject.CBORObjectTypeDouble || typeB ==
CBORObject.CBORObjectTypeDouble ||
typeA == CBORObject.CBORObjectTypeSingle || typeB ==
CBORObject.CBORObjectTypeSingle)
{
EFloat e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedFloat(objA);
EFloat e2 = CBORObject.GetNumberInterface(typeB).AsExtendedFloat(objB);
return(CBORObject.FromObject(e1.Subtract(e2)));
}
else
{
EInteger b1 = CBORObject.GetNumberInterface(typeA).AsEInteger(objA);
EInteger b2 = CBORObject.GetNumberInterface(typeB).AsEInteger(objB);
return(CBORObject.FromObject(b1 - (EInteger)b2));
}
}
internal static ICBORNumber GetNumberInterface(CBORObject obj)
{
CBORNumber num = CBORNumber.FromCBORObject(obj);
return((num == null) ? null : num.GetNumberInterface());
}
private static CBORNumber BignumToNumber(CBORObject o)
{
if (o.Type != CBORType.ByteString)
{
return(null); // "Byte array expected");
}
bool negative = o.HasMostInnerTag(3);
byte[] data = o.GetByteString();
if (data.Length <= 7)
{
long x = 0;
for (var i = 0; i < data.Length; ++i)
{
x <<= 8;
x |= ((long)data[i]) & 0xff;
}
if (negative)
{
x = -x;
--x;
}
return(new CBORNumber(Kind.Integer, x));
}
int neededLength = data.Length;
byte[] bytes;
EInteger bi;
var extended = false;
if (((data[0] >> 7) & 1) != 0)
{
// Increase the needed length
// if the highest bit is set, to
// distinguish negative and positive
// values
++neededLength;
extended = true;
}
bytes = new byte[neededLength];
for (var i = 0; i < data.Length; ++i)
{
bytes[i] = data[data.Length - 1 - i];
if (negative)
{
bytes[i] = (byte)((~((int)bytes[i])) & 0xff);
}
}
if (extended)
{
bytes[bytes.Length - 1] = negative ? (byte)0xff : (byte)0;
}
bi = EInteger.FromBytes(bytes, true);
if (bi.CanFitInInt64())
{
return(new CBORNumber(Kind.Integer, bi.ToInt64Checked()));
}
else
{
return(new CBORNumber(Kind.EInteger, bi));
}
}
public static object TypeToObject(
CBORObject objThis,
Type t,
CBORTypeMapper mapper,
PODOptions options,
int depth)
{
if (t.Equals(typeof(int)))
{
return(objThis.AsInt32());
}
if (t.Equals(typeof(short)))
{
return(objThis.AsInt16());
}
if (t.Equals(typeof(ushort)))
{
return(objThis.AsUInt16());
}
if (t.Equals(typeof(byte)))
{
return(objThis.AsByte());
}
if (t.Equals(typeof(sbyte)))
{
return(objThis.AsSByte());
}
if (t.Equals(typeof(long)))
{
return(objThis.AsInt64());
}
if (t.Equals(typeof(uint)))
{
return(objThis.AsUInt32());
}
if (t.Equals(typeof(ulong)))
{
return(objThis.AsUInt64());
}
if (t.Equals(typeof(double)))
{
return(objThis.AsDouble());
}
if (t.Equals(typeof(decimal)))
{
return(objThis.AsDecimal());
}
if (t.Equals(typeof(float)))
{
return(objThis.AsSingle());
}
if (t.Equals(typeof(bool)))
{
return(objThis.AsBoolean());
}
if (t.Equals(typeof(char)))
{
if (objThis.Type == CBORType.TextString)
{
string s = objThis.AsString();
if (s.Length != 1)
{
throw new CBORException("Can't convert to char");
}
return(s[0]);
}
if (objThis.IsIntegral && objThis.CanTruncatedIntFitInInt32())
{
int c = objThis.AsInt32();
if (c < 0 || c >= 0x10000)
{
throw new CBORException("Can't convert to char");
}
return((char)c);
}
throw new CBORException("Can't convert to char");
}
if (t.Equals(typeof(DateTime)))
{
return(new CBORDateConverter().FromCBORObject(objThis));
}
if (t.Equals(typeof(Guid)))
{
return(new CBORUuidConverter().FromCBORObject(objThis));
}
if (t.Equals(typeof(Uri)))
{
return(new CBORUriConverter().FromCBORObject(objThis));
}
if (t.Equals(typeof(EDecimal)))
{
return(objThis.AsEDecimal());
}
if (t.Equals(typeof(EFloat)))
{
return(objThis.AsEFloat());
}
if (t.Equals(typeof(EInteger)))
{
return(objThis.AsEInteger());
}
if (t.Equals(typeof(ERational)))
{
return(objThis.AsERational());
}
if (IsAssignableFrom(typeof(Enum), t))
{
return(ObjectToEnum(objThis, t));
}
if (objThis.Type == CBORType.ByteString)
{
if (t.Equals(typeof(byte[])))
{
byte[] bytes = objThis.GetByteString();
var byteret = new byte[bytes.Length];
Array.Copy(bytes, 0, byteret, 0, byteret.Length);
return(byteret);
}
}
if (objThis.Type == CBORType.Array)
{
Type objectType = typeof(object);
var isList = false;
object listObject = null;
#if NET40 || NET20
if (IsAssignableFrom(typeof(Array), t))
{
Type elementType = t.GetElementType();
Array array = Array.CreateInstance(
elementType,
GetDimensions(objThis));
return(FillArray(array, elementType, objThis, mapper, options, depth));
}
if (t.IsGenericType)
{
Type td = t.GetGenericTypeDefinition();
isList = td.Equals(typeof(List <>)) || td.Equals(typeof(IList <>)) ||
td.Equals(typeof(ICollection <>)) ||
td.Equals(typeof(IEnumerable <>));
}
isList = isList && t.GetGenericArguments().Length == 1;
if (isList)
{
objectType = t.GetGenericArguments()[0];
Type listType = typeof(List <>).MakeGenericType(objectType);
listObject = Activator.CreateInstance(listType);
}
#else
if (IsAssignableFrom(typeof(Array), t))
{
Type elementType = t.GetElementType();
Array array = Array.CreateInstance(
elementType,
GetDimensions(objThis));
return(FillArray(array, elementType, objThis, mapper, options, depth));
}
if (t.GetTypeInfo().IsGenericType)
{
Type td = t.GetGenericTypeDefinition();
isList = (td.Equals(typeof(List <>)) ||
td.Equals(typeof(IList <>)) ||
td.Equals(typeof(ICollection <>)) ||
td.Equals(typeof(IEnumerable <>)));
}
isList = (isList && t.GenericTypeArguments.Length == 1);
if (isList)
{
objectType = t.GenericTypeArguments[0];
Type listType = typeof(List <>).MakeGenericType(objectType);
listObject = Activator.CreateInstance(listType);
}
#endif
if (listObject == null)
{
if (t.Equals(typeof(IList)) ||
t.Equals(typeof(ICollection)) || t.Equals(typeof(IEnumerable)))
{
listObject = new List <object>();
objectType = typeof(object);
}
}
if (listObject != null)
{
System.Collections.IList ie = (System.Collections.IList)listObject;
foreach (CBORObject value in objThis.Values)
{
ie.Add(value.ToObject(objectType, mapper, options, depth + 1));
}
return(listObject);
}
}
if (objThis.Type == CBORType.Map)
{
var isDict = false;
Type keyType = null;
Type valueType = null;
object dictObject = null;
#if NET40 || NET20
isDict = t.IsGenericType;
if (t.IsGenericType)
{
Type td = t.GetGenericTypeDefinition();
isDict = td.Equals(typeof(Dictionary <,>)) ||
td.Equals(typeof(IDictionary <,>));
}
// DebugUtility.Log("list=" + isDict);
isDict = isDict && t.GetGenericArguments().Length == 2;
// DebugUtility.Log("list=" + isDict);
if (isDict)
{
keyType = t.GetGenericArguments()[0];
valueType = t.GetGenericArguments()[1];
Type listType = typeof(Dictionary <,>).MakeGenericType(
keyType,
valueType);
dictObject = Activator.CreateInstance(listType);
}
#else
isDict = (t.GetTypeInfo().IsGenericType);
if (t.GetTypeInfo().IsGenericType)
{
Type td = t.GetGenericTypeDefinition();
isDict = (td.Equals(typeof(Dictionary <,>)) ||
td.Equals(typeof(IDictionary <,>)));
}
//DebugUtility.Log("list=" + isDict);
isDict = (isDict && t.GenericTypeArguments.Length == 2);
//DebugUtility.Log("list=" + isDict);
if (isDict)
{
keyType = t.GenericTypeArguments[0];
valueType = t.GenericTypeArguments[1];
Type listType = typeof(Dictionary <,>).MakeGenericType(
keyType,
valueType);
dictObject = Activator.CreateInstance(listType);
}
#endif
if (dictObject == null)
{
if (t.Equals(typeof(IDictionary)))
{
dictObject = new Dictionary <object, object>();
keyType = typeof(object);
valueType = typeof(object);
}
}
if (dictObject != null)
{
System.Collections.IDictionary idic =
(System.Collections.IDictionary)dictObject;
foreach (CBORObject key in objThis.Keys)
{
CBORObject value = objThis[key];
idic.Add(
key.ToObject(keyType, mapper, options, depth + 1),
value.ToObject(valueType, mapper, options, depth + 1));
}
return(dictObject);
}
if (mapper != null)
{
if (!mapper.FilterTypeName(t.FullName))
{
throw new CBORException("Type " + t.FullName +
" not supported");
}
}
else
{
if (t.FullName != null && (StartsWith(t.FullName, "Microsoft.Win32."
) ||
StartsWith(t.FullName, "System.IO.")))
{
throw new CBORException("Type " + t.FullName +
" not supported");
}
if (StartsWith(t.FullName, "System.") &&
!HasCustomAttribute(t, "System.SerializableAttribute"))
{
throw new CBORException("Type " + t.FullName +
" not supported");
}
}
var values = new List <KeyValuePair <string, CBORObject> >();
foreach (string key in PropertyMap2.GetPropertyNames(
t,
options != null ? options.UseCamelCase : true))
{
if (objThis.ContainsKey(key))
{
CBORObject cborValue = objThis[key];
var dict = new KeyValuePair <string, CBORObject>(
key,
cborValue);
values.Add(dict);
}
}
return(PropertyMap2.ObjectWithProperties(
t,
values,
mapper,
options,
depth));
}
else
{
throw new CBORException();
}
}
public CBORObject ReadForFirstByte(
int firstbyte,
CBORTypeFilter filter)
{
if (this.depth > 500)
{
throw new CBORException("Too deeply nested");
}
if (firstbyte < 0)
{
throw new CBORException("Premature end of data");
}
if (firstbyte == 0xff)
{
throw new CBORException("Unexpected break code encountered");
}
int type = (firstbyte >> 5) & 0x07;
int additional = firstbyte & 0x1f;
int expectedLength = CBORObject.GetExpectedLength(firstbyte);
// Data checks
if (expectedLength == -1)
{
// if the head byte is invalid
throw new CBORException("Unexpected data encountered");
}
if (filter != null)
{
// Check for valid major types if asked
if (!filter.MajorTypeMatches(type))
{
throw new CBORException("Unexpected data type encountered");
}
if (firstbyte >= 0xe0 && firstbyte <= 0xff && firstbyte != 0xf9 &&
firstbyte != 0xfa && firstbyte != 0xfb)
{
if (!filter.NonFPSimpleValueAllowed())
{
throw new CBORException("Unexpected data type encountered");
}
}
}
// Check if this represents a fixed object
CBORObject fixedObject = CBORObject.GetFixedObject(firstbyte);
if (fixedObject != null)
{
return(fixedObject);
}
// Read fixed-length data
byte[] data = null;
if (expectedLength != 0)
{
data = new byte[expectedLength];
// include the first byte because GetFixedLengthObject
// will assume it exists for some head bytes
data[0] = unchecked ((byte)firstbyte);
if (expectedLength > 1 &&
this.stream.Read(data, 1, expectedLength - 1) != expectedLength
- 1)
{
throw new CBORException("Premature end of data");
}
CBORObject cbor = CBORObject.GetFixedLengthObject(firstbyte, data);
if (this.stringRefs != null && (type == 2 || type == 3))
{
this.stringRefs.AddStringIfNeeded(cbor, expectedLength - 1);
}
return(cbor);
}
var uadditional = (long)additional;
EInteger bigintAdditional = EInteger.Zero;
var hasBigAdditional = false;
data = new byte[8];
var lowAdditional = 0;
switch (firstbyte & 0x1f)
{
case 24: {
int tmp = this.stream.ReadByte();
if (tmp < 0)
{
throw new CBORException("Premature end of data");
}
lowAdditional = tmp;
uadditional = lowAdditional;
break;
}
case 25: {
if (this.stream.Read(data, 0, 2) != 2)
{
throw new CBORException("Premature end of data");
}
lowAdditional = ((int)(data[0] & (int)0xff)) << 8;
lowAdditional |= (int)(data[1] & (int)0xff);
uadditional = lowAdditional;
break;
}
case 26: {
if (this.stream.Read(data, 0, 4) != 4)
{
throw new CBORException("Premature end of data");
}
uadditional = ((long)(data[0] & (long)0xff)) << 24;
uadditional |= ((long)(data[1] & (long)0xff)) << 16;
uadditional |= ((long)(data[2] & (long)0xff)) << 8;
uadditional |= (long)(data[3] & (long)0xff);
break;
}
case 27: {
if (this.stream.Read(data, 0, 8) != 8)
{
throw new CBORException("Premature end of data");
}
if ((((int)data[0]) & 0x80) != 0)
{
// Won't fit in a signed 64-bit number
var uabytes = new byte[9];
uabytes[0] = data[7];
uabytes[1] = data[6];
uabytes[2] = data[5];
uabytes[3] = data[4];
uabytes[4] = data[3];
uabytes[5] = data[2];
uabytes[6] = data[1];
uabytes[7] = data[0];
uabytes[8] = 0;
hasBigAdditional = true;
bigintAdditional = EInteger.FromBytes(uabytes, true);
}
else
{
uadditional = ((long)(data[0] & (long)0xff)) << 56;
uadditional |= ((long)(data[1] & (long)0xff)) << 48;
uadditional |= ((long)(data[2] & (long)0xff)) << 40;
uadditional |= ((long)(data[3] & (long)0xff)) << 32;
uadditional |= ((long)(data[4] & (long)0xff)) << 24;
uadditional |= ((long)(data[5] & (long)0xff)) << 16;
uadditional |= ((long)(data[6] & (long)0xff)) << 8;
uadditional |= (long)(data[7] & (long)0xff);
}
break;
}
}
// The following doesn't check for major types 0 and 1,
// since all of them are fixed-length types and are
// handled in the call to GetFixedLengthObject.
if (type == 2) // Byte string
{
if (additional == 31)
{
// Streaming byte string
using (var ms = new MemoryStream()) {
// Requires same type as this one
while (true)
{
int nextByte = this.stream.ReadByte();
if (nextByte == 0xff)
{
// break if the "break" code was read
break;
}
long len = ReadDataLength(this.stream, nextByte, 2);
if ((len >> 63) != 0 || len > Int32.MaxValue)
{
throw new CBORException("Length" + ToUnsignedBigInteger(len) +
" is bigger than supported ");
}
if (nextByte != 0x40) // NOTE: 0x40 means the empty byte string
{
ReadByteData(this.stream, len, ms);
}
}
if (ms.Position > Int32.MaxValue)
{
throw new
CBORException("Length of bytes to be streamed is bigger than supported ");
}
data = ms.ToArray();
return(new CBORObject(
CBORObject.CBORObjectTypeByteString,
data));
}
}
else
{
if (hasBigAdditional)
{
throw new CBORException("Length of " +
CBORUtilities.BigIntToString(bigintAdditional) + " is bigger than supported");
}
if (uadditional > Int32.MaxValue)
{
throw new CBORException("Length of " +
CBORUtilities.LongToString(uadditional) +
" is bigger than supported");
}
data = ReadByteData(this.stream, uadditional, null);
var cbor = new CBORObject(CBORObject.CBORObjectTypeByteString, data);
if (this.stringRefs != null)
{
int hint = (uadditional > Int32.MaxValue || hasBigAdditional) ?
Int32.MaxValue : (int)uadditional;
this.stringRefs.AddStringIfNeeded(cbor, hint);
}
return(cbor);
}
}
if (type == 3) // Text string
{
if (additional == 31)
{
// Streaming text string
var builder = new StringBuilder();
while (true)
{
int nextByte = this.stream.ReadByte();
if (nextByte == 0xff)
{
// break if the "break" code was read
break;
}
long len = ReadDataLength(this.stream, nextByte, 3);
if ((len >> 63) != 0 || len > Int32.MaxValue)
{
throw new CBORException("Length" + ToUnsignedBigInteger(len) +
" is bigger than supported");
}
if (nextByte != 0x60) // NOTE: 0x60 means the empty string
{
if (PropertyMap.ExceedsKnownLength(this.stream, len))
{
throw new CBORException("Premature end of data");
}
switch (
DataUtilities.ReadUtf8(
this.stream,
(int)len,
builder,
false))
{
case -1:
throw new CBORException("Invalid UTF-8");
case -2:
throw new CBORException("Premature end of data");
}
}
}
return(new CBORObject(
CBORObject.CBORObjectTypeTextString,
builder.ToString()));
}
else
{
if (hasBigAdditional)
{
throw new CBORException("Length of " +
CBORUtilities.BigIntToString(bigintAdditional) + " is bigger than supported");
}
if (uadditional > Int32.MaxValue)
{
throw new CBORException("Length of " +
CBORUtilities.LongToString(uadditional) +
" is bigger than supported");
}
if (PropertyMap.ExceedsKnownLength(this.stream, uadditional))
{
throw new CBORException("Premature end of data");
}
var builder = new StringBuilder();
switch (
DataUtilities.ReadUtf8(
this.stream,
(int)uadditional,
builder,
false))
{
case -1:
throw new CBORException("Invalid UTF-8");
case -2:
throw new CBORException("Premature end of data");
}
var cbor = new CBORObject(
CBORObject.CBORObjectTypeTextString,
builder.ToString());
if (this.stringRefs != null)
{
int hint = (uadditional > Int32.MaxValue || hasBigAdditional) ?
Int32.MaxValue : (int)uadditional;
this.stringRefs.AddStringIfNeeded(cbor, hint);
}
return(cbor);
}
}
if (type == 4) // Array
{
CBORObject cbor = CBORObject.NewArray();
if (additional == 31)
{
var vtindex = 0;
// Indefinite-length array
while (true)
{
int headByte = this.stream.ReadByte();
if (headByte < 0)
{
throw new CBORException("Premature end of data");
}
if (headByte == 0xff)
{
// Break code was read
break;
}
if (filter != null && !filter.ArrayIndexAllowed(vtindex))
{
throw new CBORException("Array is too long");
}
++this.depth;
CBORObject o = this.ReadForFirstByte(
headByte,
filter == null ? null : filter.GetSubFilter(vtindex));
--this.depth;
cbor.Add(o);
++vtindex;
}
return(cbor);
}
if (hasBigAdditional)
{
throw new CBORException("Length of " +
CBORUtilities.BigIntToString(bigintAdditional) + " is bigger than supported");
}
if (uadditional > Int32.MaxValue)
{
throw new CBORException("Length of " +
CBORUtilities.LongToString(uadditional) +
" is bigger than supported");
}
if (filter != null && !filter.ArrayLengthMatches(uadditional))
{
throw new CBORException("Array is too long");
}
if (PropertyMap.ExceedsKnownLength(this.stream, uadditional))
{
throw new CBORException("Remaining data too small for array length");
}
++this.depth;
for (long i = 0; i < uadditional; ++i)
{
cbor.Add(
this.Read(filter == null ? null : filter.GetSubFilter(i)));
}
--this.depth;
return(cbor);
}
if (type == 5) // Map, type 5
{
CBORObject cbor = CBORObject.NewMap();
if (additional == 31)
{
// Indefinite-length map
while (true)
{
int headByte = this.stream.ReadByte();
if (headByte < 0)
{
throw new CBORException("Premature end of data");
}
if (headByte == 0xff)
{
// Break code was read
break;
}
++this.depth;
CBORObject key = this.ReadForFirstByte(headByte, null);
CBORObject value = this.Read(null);
--this.depth;
if (this.policy == CBORDuplicatePolicy.Disallow)
{
if (cbor.ContainsKey(key))
{
throw new CBORException("Duplicate key already exists: " + key);
}
}
cbor[key] = value;
}
return(cbor);
}
if (hasBigAdditional)
{
throw new CBORException("Length of " +
CBORUtilities.BigIntToString(bigintAdditional) + " is bigger than supported");
}
if (uadditional > Int32.MaxValue)
{
throw new CBORException("Length of " +
CBORUtilities.LongToString(uadditional) +
" is bigger than supported");
}
if (PropertyMap.ExceedsKnownLength(this.stream, uadditional))
{
throw new CBORException("Remaining data too small for map length");
}
for (long i = 0; i < uadditional; ++i)
{
++this.depth;
CBORObject key = this.Read(null);
CBORObject value = this.Read(null);
--this.depth;
if (this.policy == CBORDuplicatePolicy.Disallow)
{
if (cbor.ContainsKey(key))
{
throw new CBORException("Duplicate key already exists: " + key);
}
}
cbor[key] = value;
}
return(cbor);
}
if (type == 6) // Tagged item
{
ICBORTag taginfo = null;
var haveFirstByte = false;
var newFirstByte = -1;
if (!hasBigAdditional)
{
if (filter != null && !filter.TagAllowed(uadditional))
{
throw new CBORException("Unexpected tag encountered: " +
uadditional);
}
int uad = uadditional >= 257 ? 257 : (uadditional < 0 ? 0 :
(int)uadditional);
switch (uad)
{
case 256:
// Tag 256: String namespace
this.stringRefs = this.stringRefs ?? (new StringRefs());
this.stringRefs.Push();
break;
case 25:
// String reference
if (this.stringRefs == null)
{
throw new CBORException("No stringref namespace");
}
break;
case 28:
case 29:
this.hasSharableObjects = true;
break;
}
taginfo = CBORObject.FindTagConverterLong(uadditional);
}
else
{
if (filter != null && !filter.TagAllowed(bigintAdditional))
{
throw new CBORException("Unexpected tag encountered: " +
uadditional);
}
taginfo = CBORObject.FindTagConverter(bigintAdditional);
}
++this.depth;
CBORObject o = haveFirstByte ? this.ReadForFirstByte(
newFirstByte,
taginfo == null ? null : taginfo.GetTypeFilter()) :
this.Read(taginfo == null ? null : taginfo.GetTypeFilter());
--this.depth;
if (hasBigAdditional)
{
return(CBORObject.FromObjectAndTag(o, bigintAdditional));
}
if (uadditional < 65536)
{
int uaddl = uadditional >= 257 ? 257 : (uadditional < 0 ? 0 :
(int)uadditional);
switch (uaddl)
{
case 256:
// string tag
this.stringRefs.Pop();
break;
case 25:
// stringref tag
return(this.stringRefs.GetString(o.AsEInteger()));
}
return(CBORObject.FromObjectAndTag(
o,
(int)uadditional));
}
return(CBORObject.FromObjectAndTag(
o,
(EInteger)uadditional));
}
throw new CBORException("Unexpected data encountered");
}
private static bool IsUntaggedInteger(CBORObject o)
{
return(!o.IsTagged && o.Type == CBORType.Integer);
}
public CBORObject ReadForFirstByte(int firstbyte)
{
if (this.depth > 500)
{
throw new CBORException("Too deeply nested");
}
if (firstbyte < 0)
{
throw new CBORException("Premature end of data");
}
if (firstbyte == 0xff)
{
throw new CBORException("Unexpected break code encountered");
}
int type = (firstbyte >> 5) & 0x07;
int additional = firstbyte & 0x1f;
long uadditional;
CBORObject fixedObject;
if (this.options.Ctap2Canonical)
{
if (additional >= 0x1c)
{
// NOTE: Includes stop byte and indefinite length data items
throw new CBORException("Invalid canonical CBOR encountered");
}
// Check if this represents a fixed object (NOTE: All fixed objects
// comply with CTAP2 canonical CBOR).
fixedObject = CBORObject.GetFixedObject(firstbyte);
if (fixedObject != null)
{
return(fixedObject);
}
if (type == 6)
{
throw new CBORException("Tags not allowed in canonical CBOR");
}
uadditional = ReadDataLength(
this.stream,
firstbyte,
type,
type == 7);
if (type == 0)
{
return((uadditional >> 63) != 0 ?
CBORObject.FromObject(ToUnsignedEInteger(uadditional)) :
CBORObject.FromObject(uadditional));
}
else if (type == 1)
{
return((uadditional >> 63) != 0 ? CBORObject.FromObject(
ToUnsignedEInteger(uadditional).Add(1).Negate()) :
CBORObject.FromObject((-uadditional) - 1L));
}
else if (type == 7)
{
if (additional < 24)
{
return(CBORObject.FromSimpleValue(additional));
}
else if (additional == 24 && uadditional < 32)
{
throw new CBORException("Invalid simple value encoding");
}
else if (additional == 24)
{
return(CBORObject.FromSimpleValue((int)uadditional));
}
else if (additional == 25)
{
return(CBORObject.FromFloatingPointBits(uadditional, 2));
}
else if (additional == 26)
{
return(CBORObject.FromFloatingPointBits(uadditional, 4));
}
else if (additional == 27)
{
return(CBORObject.FromFloatingPointBits(uadditional, 8));
}
}
else if (type >= 2 && type <= 5)
{
return(this.ReadStringArrayMap(type, uadditional));
}
throw new CBORException("Unexpected data encountered");
}
int expectedLength = CBORObject.GetExpectedLength(firstbyte);
// Data checks
if (expectedLength == -1)
{
// if the head byte is invalid
throw new CBORException("Unexpected data encountered");
}
// Check if this represents a fixed object
fixedObject = CBORObject.GetFixedObject(firstbyte);
if (fixedObject != null)
{
return(fixedObject);
}
// Read fixed-length data
byte[] data = null;
if (expectedLength != 0)
{
data = new byte[expectedLength];
// include the first byte because GetFixedLengthObject
// will assume it exists for some head bytes
data[0] = unchecked ((byte)firstbyte);
if (expectedLength > 1 &&
this.stream.Read(data, 1, expectedLength - 1) != expectedLength
- 1)
{
throw new CBORException("Premature end of data");
}
CBORObject cbor = CBORObject.GetFixedLengthObject(firstbyte, data);
if (this.stringRefs != null && (type == 2 || type == 3))
{
this.stringRefs.AddStringIfNeeded(cbor, expectedLength - 1);
}
return(cbor);
}
if (additional == 31)
{
// Indefinite-length for major types 2 to 5 (other major
// types were already handled in the call to
// GetFixedLengthObject).
switch (type)
{
case 2: {
// Streaming byte string
using (var ms = new MemoryStream()) {
// Requires same type as this one
while (true)
{
int nextByte = this.stream.ReadByte();
if (nextByte == 0xff)
{
// break if the "break" code was read
break;
}
long len = ReadDataLength(this.stream, nextByte, 2);
if ((len >> 63) != 0 || len > Int32.MaxValue)
{
throw new CBORException("Length" + ToUnsignedEInteger(len)
+
" is bigger than supported ");
}
if (nextByte != 0x40)
{
// NOTE: 0x40 means the empty byte string
ReadByteData(this.stream, len, ms);
}
}
if (ms.Position > Int32.MaxValue)
{
throw new
CBORException("Length of bytes to be streamed is bigger" +
"\u0020than supported ");
}
data = ms.ToArray();
return(CBORObject.FromRaw(data));
}
}
case 3: {
// Streaming text string
var builder = new StringBuilder();
while (true)
{
int nextByte = this.stream.ReadByte();
if (nextByte == 0xff)
{
// break if the "break" code was read
break;
}
long len = ReadDataLength(this.stream, nextByte, 3);
if ((len >> 63) != 0 || len > Int32.MaxValue)
{
throw new CBORException("Length" + ToUnsignedEInteger(len) +
" is bigger than supported");
}
if (nextByte != 0x60)
{
// NOTE: 0x60 means the empty string
if (PropertyMap.ExceedsKnownLength(this.stream, len))
{
throw new CBORException("Premature end of data");
}
switch (
DataUtilities.ReadUtf8(
this.stream,
(int)len,
builder,
false))
{
case -1:
throw new CBORException("Invalid UTF-8");
case -2:
throw new CBORException("Premature end of data");
}
}
}
return(CBORObject.FromRaw(builder.ToString()));
}
case 4: {
CBORObject cbor = CBORObject.NewArray();
var vtindex = 0;
// Indefinite-length array
while (true)
{
int headByte = this.stream.ReadByte();
if (headByte < 0)
{
throw new CBORException("Premature end of data");
}
if (headByte == 0xff)
{
// Break code was read
break;
}
++this.depth;
CBORObject o = this.ReadForFirstByte(
headByte);
--this.depth;
cbor.Add(o);
++vtindex;
}
return(cbor);
}
case 5: {
CBORObject cbor = CBORObject.NewMap();
// Indefinite-length map
while (true)
{
int headByte = this.stream.ReadByte();
if (headByte < 0)
{
throw new CBORException("Premature end of data");
}
if (headByte == 0xff)
{
// Break code was read
break;
}
++this.depth;
CBORObject key = this.ReadForFirstByte(headByte);
CBORObject value = this.ReadInternal();
--this.depth;
if (!this.options.AllowDuplicateKeys)
{
if (cbor.ContainsKey(key))
{
throw new CBORException("Duplicate key already exists");
}
}
cbor[key] = value;
}
return(cbor);
}
default: throw new CBORException("Unexpected data encountered");
}
}
EInteger bigintAdditional = EInteger.Zero;
uadditional = ReadDataLength(this.stream, firstbyte, type);
// The following doesn't check for major types 0 and 1,
// since all of them are fixed-length types and are
// handled in the call to GetFixedLengthObject.
if (type >= 2 && type <= 5)
{
return(this.ReadStringArrayMap(type, uadditional));
}
if (type == 6) // Tagged item
{
var haveFirstByte = false;
var newFirstByte = -1;
if (this.options.ResolveReferences && (uadditional >> 32) == 0)
{
// NOTE: HandleItemTag treats only certain tags up to 256 specially
this.HandleItemTag(uadditional);
}
++this.depth;
CBORObject o = haveFirstByte ? this.ReadForFirstByte(
newFirstByte) : this.ReadInternal();
--this.depth;
if ((uadditional >> 63) != 0)
{
return(CBORObject.FromObjectAndTag(o,
ToUnsignedEInteger(uadditional)));
}
if (uadditional < 65536)
{
if (this.options.ResolveReferences)
{
int uaddl = uadditional >= 257 ? 257 : (uadditional < 0 ? 0 :
(int)uadditional);
switch (uaddl)
{
case 256:
// string tag
this.stringRefs.Pop();
break;
case 25:
// stringref tag
if (o.IsTagged || o.Type != CBORType.Integer)
{
throw new CBORException("stringref must be an unsigned" +
"\u0020integer");
}
return(this.stringRefs.GetString(o.AsEIntegerValue()));
}
}
return(CBORObject.FromObjectAndTag(
o,
(int)uadditional));
}
return(CBORObject.FromObjectAndTag(
o,
(EInteger)uadditional));
}
throw new CBORException("Unexpected data encountered");
}
private static bool IsUntaggedIntegerOrBignum(CBORObject o)
{
return(IsUntaggedInteger(o) || ((o.HasOneTag(2) || o.HasOneTag(3)) &&
o.Type == CBORType.ByteString));
}
private CBORObject NextJSONValue(
int firstChar,
int[] nextChar,
int depth)
{
string str;
int c = firstChar;
CBORObject obj = null;
if (c < 0)
{
this.RaiseError("Unexpected end of data");
}
switch (c)
{
case '"': {
// Parse a string
// The tokenizer already checked the string for invalid
// surrogate pairs, so just call the CBORObject
// constructor directly
obj = CBORObject.FromRaw(this.NextJSONString());
nextChar[0] = this.SkipWhitespaceJSON();
return(obj);
}
case '{': {
// Parse an object
obj = this.ParseJSONObject(depth + 1);
nextChar[0] = this.SkipWhitespaceJSON();
return(obj);
}
case '[': {
// Parse an array
obj = this.ParseJSONArray(depth + 1);
nextChar[0] = this.SkipWhitespaceJSON();
return(obj);
}
case 't': {
// Parse true
if ((c = this.ReadChar()) != 'r' || (c = this.ReadChar()) != 'u' ||
(c = this.ReadChar()) != 'e')
{
this.RaiseError("Value can't be parsed.");
}
c = this.ReadChar();
if (c == 0x20 || c == 0x0a || c == 0x0d || c == 0x09)
{
nextChar[0] = this.SkipWhitespaceJSON();
}
else if (this.jsonSequenceMode && depth == 0)
{
nextChar[0] = c;
this.RaiseError("JSON whitespace expected after top-level " +
"number in JSON sequence");
}
else
{
nextChar[0] = c;
}
return(CBORObject.True);
}
case 'f': {
// Parse false
if ((c = this.ReadChar()) != 'a' || (c = this.ReadChar()) != 'l' ||
(c = this.ReadChar()) != 's' || (c = this.ReadChar()) != 'e')
{
this.RaiseError("Value can't be parsed.");
}
c = this.ReadChar();
if (c == 0x20 || c == 0x0a || c == 0x0d || c == 0x09)
{
nextChar[0] = this.SkipWhitespaceJSON();
}
else if (this.jsonSequenceMode && depth == 0)
{
nextChar[0] = c;
this.RaiseError("JSON whitespace expected after top-level " +
"number in JSON sequence");
}
else
{
nextChar[0] = c;
}
return(CBORObject.False);
}
case 'n': {
// Parse null
if ((c = this.ReadChar()) != 'u' || (c = this.ReadChar()) != 'l' ||
(c = this.ReadChar()) != 'l')
{
this.RaiseError("Value can't be parsed.");
}
c = this.ReadChar();
if (c == 0x20 || c == 0x0a || c == 0x0d || c == 0x09)
{
nextChar[0] = this.SkipWhitespaceJSON();
}
else if (this.jsonSequenceMode && depth == 0)
{
nextChar[0] = c;
this.RaiseError("JSON whitespace expected after top-level " +
"number in JSON sequence");
}
else
{
nextChar[0] = c;
}
return(CBORObject.Null);
}
case '-': {
// Parse a negative number
return(this.NextJSONNegativeNumber(nextChar, depth));
}
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': {
// Parse a nonnegative number
int cval = c - '0';
int cstart = c;
var needObj = true;
c = this.ReadChar();
if (!(c == '-' || c == '+' || c == '.' || (c >= '0' && c <= '9') ||
c == 'e' || c == 'E'))
{
// Optimize for common case where JSON number
// is a single digit without sign or exponent
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
else if (c >= '0' && c <= '9')
{
int csecond = c;
if (cstart == '0')
{
// Leading zero followed by any digit is not allowed
this.RaiseError("JSON number can't be parsed.");
}
cval = (cval * 10) + (int)(c - '0');
c = this.ReadChar();
if (c >= '0' && c <= '9')
{
var digits = 2;
var ctmp = new int[10];
ctmp[0] = cstart;
ctmp[1] = csecond;
while (digits < 9 && (c >= '0' && c <= '9'))
{
cval = (cval * 10) + (int)(c - '0');
ctmp[digits++] = c;
c = this.ReadChar();
}
if (c == 'e' || c == 'E' || c == '.' || (c >= '0' && c <= '9'))
{
// Not an all-digit number, or too long
this.sb = this.sb ?? new StringBuilder();
this.sb.Remove(0, this.sb.Length);
for (var vi = 0; vi < digits; ++vi)
{
this.sb.Append((char)ctmp[vi]);
}
}
else
{
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
}
else if (!(c == '-' || c == '+' || c == '.' || c == 'e' || c
== 'E'))
{
// Optimize for common case where JSON number
// is two digits without sign, decimal point, or exponent
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
else
{
this.sb = this.sb ?? new StringBuilder();
this.sb.Remove(0, this.sb.Length);
this.sb.Append((char)cstart);
this.sb.Append((char)csecond);
}
}
else
{
this.sb = this.sb ?? new StringBuilder();
this.sb.Remove(0, this.sb.Length);
this.sb.Append((char)cstart);
}
if (needObj)
{
var charbuf = new char[32];
var charbufptr = 0;
while (
c == '-' || c == '+' || c == '.' || (c >= '0' && c <= '9') ||
c == 'e' || c == 'E')
{
charbuf[charbufptr++] = (char)c;
if (charbufptr >= 32)
{
this.sb.Append(charbuf, 0, 32);
charbufptr = 0;
}
c = this.ReadChar();
}
if (charbufptr > 0)
{
this.sb.Append(charbuf, 0, charbufptr);
}
// check if character can validly appear after a JSON number
if (c != ',' && c != ']' && c != '}' && c != -1 &&
c != 0x20 && c != 0x0a && c != 0x0d && c != 0x09)
{
this.RaiseError("Invalid character after JSON number");
}
str = this.sb.ToString();
obj = CBORDataUtilities.ParseJSONNumber(str, this.options);
if (obj == null)
{
string errstr = (str.Length <= 100) ? str : (str.Substring(0,
100) + "...");
this.RaiseError("JSON number can't be parsed. " + errstr);
}
}
if (c == 0x20 || c == 0x0a || c == 0x0d || c == 0x09)
{
nextChar[0] = this.SkipWhitespaceJSON();
}
else if (this.jsonSequenceMode && depth == 0)
{
nextChar[0] = c;
this.RaiseError("JSON whitespace expected after top-level " +
"number in JSON sequence");
}
else
{
nextChar[0] = c;
}
return(obj);
}
default: this.RaiseError("Value can't be parsed.");
break;
}
return(null);
}
public CBORObject ValidateObject(CBORObject obj)
{
return CBORTag2.ConvertToBigNum(obj, true);
}
public static CBORObject Multiply(CBORObject a, CBORObject b)
{
if (a == null)
{
throw new ArgumentNullException(nameof(a));
}
if (b == null)
{
throw new ArgumentNullException(nameof(b));
}
if (a.Type != CBORType.Number)
{
throw new ArgumentException("a.Type (" + a.Type +
") is not equal to " + CBORType.Number);
}
if (b.Type != CBORType.Number)
{
throw new ArgumentException("b.Type (" + b.Type +
") is not equal to " + CBORType.Number);
}
object objA = a.ThisItem;
object objB = b.ThisItem;
int typeA = a.ItemType;
int typeB = b.ItemType;
if (typeA == CBORObject.CBORObjectTypeInteger && typeB ==
CBORObject.CBORObjectTypeInteger)
{
var valueA = (long)objA;
var valueB = (long)objB;
bool apos = valueA > 0L;
bool bpos = valueB > 0L;
if (
(apos && ((!bpos && (Int64.MinValue / valueA) > valueB) ||
(bpos && valueA > (Int64.MaxValue / valueB)))) ||
(!apos && ((!bpos && valueA != 0L &&
(Int64.MaxValue / valueA) > valueB) ||
(bpos && valueA < (Int64.MinValue / valueB)))))
{
// would overflow, convert to EInteger
var bvalueA = (EInteger)valueA;
var bvalueB = (EInteger)valueB;
return(CBORObject.FromObject(bvalueA * (EInteger)bvalueB));
}
return(CBORObject.FromObject(valueA * valueB));
}
if (typeA == CBORObject.CBORObjectTypeExtendedRational ||
typeB == CBORObject.CBORObjectTypeExtendedRational)
{
ERational e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedRational(objA);
ERational e2 =
CBORObject.GetNumberInterface(typeB).AsExtendedRational(objB);
return(CBORObject.FromObject(e1.Multiply(e2)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedDecimal ||
typeB == CBORObject.CBORObjectTypeExtendedDecimal)
{
EDecimal e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedDecimal(objA);
EDecimal e2 =
CBORObject.GetNumberInterface(typeB).AsExtendedDecimal(objB);
return(CBORObject.FromObject(e1.Multiply(e2)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedFloat || typeB ==
CBORObject.CBORObjectTypeExtendedFloat ||
typeA == CBORObject.CBORObjectTypeDouble || typeB ==
CBORObject.CBORObjectTypeDouble ||
typeA == CBORObject.CBORObjectTypeSingle || typeB ==
CBORObject.CBORObjectTypeSingle)
{
EFloat e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedFloat(objA);
EFloat e2 = CBORObject.GetNumberInterface(typeB).AsExtendedFloat(objB);
return(CBORObject.FromObject(e1.Multiply(e2)));
}
else
{
EInteger b1 = CBORObject.GetNumberInterface(typeA).AsEInteger(objA);
EInteger b2 = CBORObject.GetNumberInterface(typeB).AsEInteger(objB);
return(CBORObject.FromObject(b1 * (EInteger)b2));
}
}
private CBORObject NextJSONNonnegativeNumber(int c, int[] nextChar)
{
// Assumes the last character read was a digit
CBORObject obj = null;
int cval = c - '0';
int cstart = c;
int startIndex = this.index - 1;
var needObj = true;
int numberStartIndex = this.index - 1;
// DebugUtility.Log("js=" + (jstring));
c = this.index < this.endPos ? ((int)this.jstring[this.index++]) &
0xffff : -1;
if (!(c == '-' || c == '+' || c == '.' || (c >= '0' && c <= '9') ||
c == 'e' || c == 'E'))
{
// Optimize for common case where JSON number
// is a single digit without sign or exponent
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
else if (c >= '0' && c <= '9')
{
int csecond = c;
if (cstart == '0')
{
// Leading zero followed by any digit is not allowed
this.RaiseError("JSON number can't be parsed.");
}
cval = (cval * 10) + (int)(c - '0');
c = this.index < this.endPos ? ((int)this.jstring[this.index++]) : -1;
if (c >= '0' && c <= '9')
{
var digits = 2;
while (digits < 9 && (c >= '0' && c <= '9'))
{
cval = (cval * 10) + (int)(c - '0');
c = this.index < this.endPos ?
((int)this.jstring[this.index++]) : -1;
++digits;
}
if (!(c == 'e' || c == 'E' || c == '.' || (c >= '0' && c <=
'9')))
{
// All-digit number that's short enough
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
}
else if (!(c == '-' || c == '+' || c == '.' || c == 'e' || c
== 'E'))
{
// Optimize for common case where JSON number
// is two digits without sign, decimal point, or exponent
obj = CBORDataUtilities.ParseSmallNumber(cval, this.options);
needObj = false;
}
}
if (needObj)
{
// NOTE: Differs from CBORJson2, notably because the whole
// rest of the string is checked whether the beginning of the rest
// is a JSON number
var endIndex = new int[1];
endIndex[0] = numberStartIndex;
obj = CBORDataUtilities.ParseJSONNumber(
this.jstring,
numberStartIndex,
this.endPos - numberStartIndex,
this.options,
endIndex);
int numberEndIndex = endIndex[0];
this.index = numberEndIndex >= this.endPos ? this.endPos :
(numberEndIndex + 1);
if (obj == null)
{
int strlen = numberEndIndex - numberStartIndex;
string errstr = this.jstring.Substring(numberStartIndex,
Math.Min(100, strlen));
if (strlen > 100)
{
errstr += "...";
}
this.RaiseError("JSON number can't be parsed. " + errstr);
}
#if DEBUG
if (numberEndIndex < numberStartIndex)
{
throw new ArgumentException("numberEndIndex (" + numberEndIndex +
") is not greater or equal to " + numberStartIndex);
}
#endif
c = numberEndIndex >= this.endPos ? -1 :
this.jstring[numberEndIndex];
// check if character can validly appear after a JSON number
if (c != ',' && c != ']' && c != '}' && c != -1 &&
c != 0x20 && c != 0x0a && c != 0x0d && c != 0x09)
{
this.RaiseError("Invalid character after JSON number");
}
// DebugUtility.Log("endIndex="+endIndex[0]+", "+
// this.jstring.Substring(endIndex[0],
// Math.Min(20, this.endPos-endIndex[0])));
}
if (c == -1 || (c != 0x20 && c != 0x0a && c != 0x0d && c != 0x09))
{
nextChar[0] = c;
}
else
{
nextChar[0] = this.SkipWhitespaceJSON();
}
return(obj);
}
public static CBORObject FromObject(ulong value)
{
return(CBORObject.FromObject(UInt64ToEInteger(value)));
}
private static CBORNumber BigFracToNumber(
CBORObject o,
int tagName)
{
if (o.Type != CBORType.Array)
{
return(null); // "Big fraction must be an array");
}
if (tagName == 268 || tagName == 269)
{
if (o.Count != 3)
{
return(null); // "Extended big fraction requires exactly 3 items");
}
if (!IsUntaggedInteger(o[2]))
{
return(null); // "Third item must be an integer");
}
}
else
{
if (o.Count != 2)
{
return(null); // "Big fraction requires exactly 2 items");
}
}
if (tagName == 4 || tagName == 5)
{
if (!IsUntaggedInteger(o[0]))
{
return(null); // "Exponent is not an integer");
}
}
else
{
if (!IsUntaggedIntegerOrBignum(o[0]))
{
return(null); // "Exponent is not an integer or bignum");
}
}
if (!IsUntaggedIntegerOrBignum(o[1]))
{
return(null); // "Mantissa is not an integer or bignum");
}
EInteger exponent = IntegerOrBignum(o[0]);
EInteger mantissa = IntegerOrBignum(o[1]);
bool isdec = tagName == 4 || tagName == 264 || tagName == 268;
EDecimal edec = isdec ? EDecimal.Create(mantissa, exponent) : null;
EFloat efloat = !isdec?EFloat.Create(mantissa, exponent) : null;
if (tagName == 268 || tagName == 269)
{
if (mantissa.Sign < 0)
{
return(null); // "Mantissa may not be negative");
}
if (!o[2].CanValueFitInInt32())
{
return(null); // "Invalid options");
}
int options = o[2].AsInt32Value();
switch (options)
{
case 0:
break;
case 1:
if (isdec)
{
edec = edec.Negate();
}
else
{
efloat = efloat.Negate();
}
break;
case 2:
if (!exponent.IsZero || !mantissa.IsZero)
{
return(null); // "invalid values");
}
if (isdec)
{
edec = EDecimal.PositiveInfinity;
}
else
{
efloat = EFloat.PositiveInfinity;
}
break;
case 3:
if (!exponent.IsZero || !mantissa.IsZero)
{
return(null); // "invalid values");
}
if (isdec)
{
edec = EDecimal.NegativeInfinity;
}
else
{
efloat = EFloat.NegativeInfinity;
}
break;
case 4:
case 5:
case 6:
case 7:
if (!exponent.IsZero)
{
return(null); // "invalid values");
}
if (isdec)
{
edec = EDecimal.CreateNaN(
mantissa,
options >= 6,
options == 5 || options == 7,
null);
}
else
{
efloat = EFloat.CreateNaN(
mantissa,
options >= 6,
options == 5 || options == 7,
null);
}
break;
default: return(null); // "Invalid options");
}
}
if (isdec)
{
return(CBORNumber.FromObject(edec));
}
else
{
return(CBORNumber.FromObject(efloat));
}
}
private static CBORNumber RationalToNumber(
CBORObject o,
int tagName)
{
if (o.Type != CBORType.Array)
{
return(null); // "Big fraction must be an array";
}
if (tagName == 270)
{
if (o.Count != 3)
{
return(null); // "Extended big fraction requires exactly 3 items";
}
if (!IsUntaggedInteger(o[2]))
{
return(null); // "Third item must be an integer";
}
}
else
{
if (o.Count != 2)
{
return(null); // "Big fraction requires exactly 2 items";
}
}
if (!IsUntaggedIntegerOrBignum(o[0]))
{
return(null); // "Numerator is not an integer or bignum";
}
if (!IsUntaggedIntegerOrBignum(o[1]))
{
return(null); // "Denominator is not an integer or bignum");
}
EInteger numerator = IntegerOrBignum(o[0]);
EInteger denominator = IntegerOrBignum(o[1]);
if (denominator.Sign <= 0)
{
return(null); // "Denominator may not be negative or zero");
}
ERational erat = ERational.Create(numerator, denominator);
if (tagName == 270)
{
if (numerator.Sign < 0)
{
return(null); // "Numerator may not be negative");
}
if (!o[2].CanValueFitInInt32())
{
return(null); // "Invalid options";
}
int options = o[2].AsInt32Value();
switch (options)
{
case 0:
break;
case 1:
erat = erat.Negate();
break;
case 2:
if (!numerator.IsZero || denominator.CompareTo(1) != 0)
{
return(null); // "invalid values");
}
erat = ERational.PositiveInfinity;
break;
case 3:
if (!numerator.IsZero || denominator.CompareTo(1) != 0)
{
return(null); // "invalid values");
}
erat = ERational.NegativeInfinity;
break;
case 4:
case 5:
case 6:
case 7:
if (denominator.CompareTo(1) != 0)
{
return(null); // "invalid values");
}
erat = ERational.CreateNaN(
numerator,
options >= 6,
options == 5 || options == 7);
break;
default: return(null); // "Invalid options");
}
}
return(CBORNumber.FromObject(erat));
}
public static CBORObject Divide(CBORObject a, CBORObject b)
{
if (a == null)
{
throw new ArgumentNullException(nameof(a));
}
if (b == null)
{
throw new ArgumentNullException(nameof(b));
}
if (a.Type != CBORType.Number)
{
throw new ArgumentException("a.Type (" + a.Type +
") is not equal to " + CBORType.Number);
}
if (b.Type != CBORType.Number)
{
throw new ArgumentException("b.Type (" + b.Type +
") is not equal to " + CBORType.Number);
}
object objA = a.ThisItem;
object objB = b.ThisItem;
int typeA = a.ItemType;
int typeB = b.ItemType;
if (typeA == CBORObject.CBORObjectTypeInteger && typeB ==
CBORObject.CBORObjectTypeInteger)
{
var valueA = (long)objA;
var valueB = (long)objB;
if (valueB == 0)
{
return((valueA == 0) ? CBORObject.NaN : ((valueA < 0) ?
CBORObject.NegativeInfinity : CBORObject.PositiveInfinity));
}
if (valueA == Int64.MinValue && valueB == -1)
{
return(CBORObject.FromObject(valueA).Negate());
}
long quo = valueA / valueB;
long rem = valueA - (quo * valueB);
return((rem == 0) ? CBORObject.FromObject(quo) :
CBORObject.FromObject(
ERational.Create(
(EInteger)valueA,
(EInteger)valueB)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedRational ||
typeB == CBORObject.CBORObjectTypeExtendedRational)
{
ERational e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedRational(objA);
ERational e2 =
CBORObject.GetNumberInterface(typeB).AsExtendedRational(objB);
return(CBORObject.FromObject(e1.Divide(e2)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedDecimal ||
typeB == CBORObject.CBORObjectTypeExtendedDecimal)
{
EDecimal e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedDecimal(objA);
EDecimal e2 =
CBORObject.GetNumberInterface(typeB).AsExtendedDecimal(objB);
if (e1.IsZero && e2.IsZero)
{
return(CBORObject.NaN);
}
EDecimal eret = e1.Divide(e2, null);
// If either operand is infinity or NaN, the result
// is already exact. Likewise if the result is a finite number.
if (!e1.IsFinite || !e2.IsFinite || eret.IsFinite)
{
return(CBORObject.FromObject(eret));
}
ERational er1 =
CBORObject.GetNumberInterface(typeA).AsExtendedRational(objA);
ERational er2 =
CBORObject.GetNumberInterface(typeB).AsExtendedRational(objB);
return(CBORObject.FromObject(er1.Divide(er2)));
}
if (typeA == CBORObject.CBORObjectTypeExtendedFloat || typeB ==
CBORObject.CBORObjectTypeExtendedFloat ||
typeA == CBORObject.CBORObjectTypeDouble || typeB ==
CBORObject.CBORObjectTypeDouble ||
typeA == CBORObject.CBORObjectTypeSingle || typeB ==
CBORObject.CBORObjectTypeSingle)
{
EFloat e1 =
CBORObject.GetNumberInterface(typeA).AsExtendedFloat(objA);
EFloat e2 = CBORObject.GetNumberInterface(typeB).AsExtendedFloat(objB);
if (e1.IsZero && e2.IsZero)
{
return(CBORObject.NaN);
}
EFloat eret = e1.Divide(e2, null);
// If either operand is infinity or NaN, the result
// is already exact. Likewise if the result is a finite number.
if (!e1.IsFinite || !e2.IsFinite || eret.IsFinite)
{
return(CBORObject.FromObject(eret));
}
ERational er1 =
CBORObject.GetNumberInterface(typeA).AsExtendedRational(objA);
ERational er2 =
CBORObject.GetNumberInterface(typeB).AsExtendedRational(objB);
return(CBORObject.FromObject(er1.Divide(er2)));
}
else
{
EInteger b1 = CBORObject.GetNumberInterface(typeA).AsEInteger(objA);
EInteger b2 = CBORObject.GetNumberInterface(typeB).AsEInteger(objB);
if (b2.IsZero)
{
return(b1.IsZero ? CBORObject.NaN : ((b1.Sign < 0) ?
CBORObject.NegativeInfinity : CBORObject.PositiveInfinity));
}
EInteger bigrem;
EInteger bigquo;
{
EInteger[] divrem = b1.DivRem(b2);
bigquo = divrem[0];
bigrem = divrem[1];
}
return(bigrem.IsZero ? CBORObject.FromObject(bigquo) :
CBORObject.FromObject(ERational.Create(b1, b2)));
}
}
public ParticipantObject(CBORObject cborObject)
{
_jsonString = cborObject.ToJSONString();
}
private static bool CheckRationalToNumber(
CBORObject o,
int tagName)
{
if (o.Type != CBORType.Array)
{
return(false);
}
if (tagName == 270)
{
if (o.Count != 3)
{
return(false);
}
if (!IsUntaggedInteger(o[2]))
{
return(false);
}
}
else
{
if (o.Count != 2)
{
return(false);
}
}
if (!IsUntaggedIntegerOrBignum(o[0]))
{
return(false);
}
if (!IsUntaggedIntegerOrBignum(o[1]))
{
return(false);
}
EInteger denominator = IntegerOrBignum(o[1]);
if (denominator.Sign <= 0)
{
return(false);
}
if (tagName == 270)
{
EInteger numerator = IntegerOrBignum(o[0]);
if (numerator.Sign < 0 || !o[2].CanValueFitInInt32())
{
return(false);
}
int options = o[2].AsInt32Value();
switch (options)
{
case 0:
case 1:
return(true);
case 2:
case 3:
return(numerator.IsZero && denominator.CompareTo(1) == 0);
case 4:
case 5:
case 6:
case 7:
return(denominator.CompareTo(1) == 0);
default: return(false);
}
}
return(true);
}
private static bool CheckBigFracToNumber(
CBORObject o,
int tagName)
{
if (o.Type != CBORType.Array)
{
return(false);
}
if (tagName == 268 || tagName == 269)
{
if (o.Count != 3)
{
return(false);
}
if (!IsUntaggedInteger(o[2]))
{
return(false);
}
}
else
{
if (o.Count != 2)
{
return(false);
}
}
if (tagName == 4 || tagName == 5)
{
if (!IsUntaggedInteger(o[0]))
{
return(false);
}
}
else
{
if (!IsUntaggedIntegerOrBignum(o[0]))
{
return(false);
}
}
if (!IsUntaggedIntegerOrBignum(o[1]))
{
return(false);
}
if (tagName == 268 || tagName == 269)
{
EInteger exponent = IntegerOrBignum(o[0]);
EInteger mantissa = IntegerOrBignum(o[1]);
if (mantissa.Sign < 0 || !o[2].CanValueFitInInt32())
{
return(false);
}
int options = o[2].AsInt32Value();
switch (options)
{
case 0:
case 1:
return(true);
case 2:
case 3:
return(exponent.IsZero && mantissa.IsZero);
case 4:
case 5:
case 6:
case 7:
return(exponent.IsZero);
default: return(false);
}
}
return(true);
}
public CBORObject ValidateObject(CBORObject obj)
{
return CBORTag5.ConvertToDecimalFrac(obj, true, this.extended);
}
