public Guid FromCBORObject(CBORObject obj) { if (!obj.HasMostOuterTag(37)) { throw new CBORException("Must have outermost tag 37"); } ValidateObject(obj); byte[] bytes = obj.GetByteString(); var guidChars = new char[36]; string hex = "0123456789abcdef"; var index = 0; for (var i = 0; i < 16; ++i) { if (i == 4 || i == 6 || i == 8 || i == 10) { guidChars[index++] = '-'; } guidChars[index++] = hex[(int)(bytes[i] >> 4) & 15]; guidChars[index++] = hex[(int)bytes[i] & 15]; } string guidString = new String(guidChars); return(new Guid(guidString)); }
private static CBORObject ValidateObject(CBORObject obj) { if (obj.Type != CBORType.ByteString) { throw new CBORException("UUID must be a byte string"); } byte[] bytes = obj.GetByteString(); if (bytes.Length != 16) { throw new CBORException("UUID must be 16 bytes long"); } return(obj); }
public CBORObject GetString(long smallIndex) { if (smallIndex < 0) { throw new CBORException("Unexpected index"); } if (smallIndex > Int32.MaxValue) { throw new CBORException("Index " + smallIndex + " is bigger than supported "); } var index = (int)smallIndex; List <CBORObject> lastList = this.stack[this.stack.Count - 1]; if (index >= lastList.Count) { throw new CBORException("Index " + index + " is not valid"); } CBORObject ret = lastList[index]; // Byte strings are mutable, so make a copy return((ret.Type == CBORType.ByteString) ? CBORObject.FromObject(ret.GetByteString()) : ret); }
public CBORObject GetString(EInteger bigIndex) { if (bigIndex.Sign < 0) { throw new CBORException("Unexpected index"); } if (!bigIndex.CanFitInInt32()) { throw new CBORException("Index " + bigIndex + " is bigger than supported "); } var index = (int)bigIndex; List <CBORObject> lastList = this.stack[this.stack.Count - 1]; if (index >= lastList.Count) { throw new CBORException("Index " + index + " is not valid"); } CBORObject ret = lastList[index]; // Byte strings are mutable, so make a copy return((ret.Type == CBORType.ByteString) ? CBORObject.FromObject(ret.GetByteString()) : ret); }
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()); }
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"); } }