public virtual object invokeGetterMethodForField(PropertyInfo field, object obj, ElementInfo info)
{
MethodInfo method = null;
if (info != null && info.hasPreparedInfo())
{
method = info.PreparedInfo.IsPresentMethod;
}
else
{
method = CoderUtils.findIsPresentMethodForField(field, obj.GetType());
}
if (method != null)
{
if ((bool)method.Invoke(obj, null))
{
return(field.GetValue(obj, null));
}
else
{
return(null);
}
}
return(field.GetValue(obj, null));
}
public virtual int encodeSequenceField(object obj, int fieldIdx, PropertyInfo field, System.IO.Stream stream, ElementInfo elementInfo)
{
ElementInfo info = new ElementInfo();
info.AnnotatedClass = field;
if (elementInfo.hasPreparedInfo())
{
info.PreparedInfo = elementInfo.PreparedInfo.getPropertyMetadata(fieldIdx);
}
else
{
info.ASN1ElementInfo = CoderUtils.getAttribute <ASN1Element>(field);
}
int resultSize = 0;
if (CoderUtils.isNullField(field, info))
{
return(encodeNull(obj, stream, elementInfo));
}
else
{
object invokeObjResult = invokeGetterMethodForField(field, obj, info);
if (invokeObjResult != null)
{
resultSize += encodeClassType(invokeObjResult, stream, info);
}
else
{
CoderUtils.checkForOptionalField(field, info);
}
}
return(resultSize);
}
public static void checkConstraints(long val, ElementInfo elementInfo)
{
if (elementInfo.hasPreparedInfo())
{
if (elementInfo.PreparedInfo.hasConstraint())
{
if (!elementInfo.PreparedInfo.Constraint.checkValue(val))
{
throw new Exception("Length of '" + elementInfo.AnnotatedClass.ToString() + "' out of bound");
}
}
}
else
{
if (elementInfo.isAttributePresent <ASN1ValueRangeConstraint>())
{
ASN1ValueRangeConstraint constraint = elementInfo.getAttribute <ASN1ValueRangeConstraint>();
if (val > constraint.Max || val < constraint.Min)
{
throw new Exception("Length of '" + elementInfo.AnnotatedClass.ToString() + "' out of bound");
}
}
else
if (elementInfo.isAttributePresent <ASN1SizeConstraint>())
{
ASN1SizeConstraint constraint = elementInfo.getAttribute <ASN1SizeConstraint>();
if (val != constraint.Max)
{
throw new Exception("Length of '" + elementInfo.AnnotatedClass.ToString() + "' out of bound");
}
}
}
}
public void invokeSelectMethodForField(PropertyInfo field, object obj, object param, ElementInfo info)
{
if (info.hasPreparedInfo())
{
info.PreparedInfo.invokeDoSelectMethod(obj, param);
}
else
{
CoderUtils.findDoSelectMethodForField(field, obj.GetType()).Invoke(obj, new object[] { param });
}
}
public virtual bool invokeSelectedMethodForField(PropertyInfo field, object obj, ElementInfo info)
{
if (info != null && info.hasPreparedInfo())
{
return((bool)info.PreparedInfo.invokeIsSelectedMethod(obj, null));
}
else
{
MethodInfo method = CoderUtils.findIsSelectedMethodForField(field, obj.GetType());
return((bool)method.Invoke(obj, null));
}
}
public static bool isAnyField(ICustomAttributeProvider field, ElementInfo elementInfo)
{
bool isAny = false;
if (elementInfo.hasPreparedInfo())
{
isAny = elementInfo.PreparedInfo.TypeMetadata is ASN1AnyMetadata;
}
else
{
isAny = isAttributePresent <ASN1Any>(field);//. isAnnotationPresent(.class);
}
return(isAny);
}
public static bool isNullField(ICustomAttributeProvider field, ElementInfo elementInfo)
{
bool isNull = false;
if (elementInfo.hasPreparedInfo())
{
isNull = elementInfo.PreparedInfo.TypeMetadata is ASN1NullMetadata;
}
else
{
isNull = isAttributePresent <ASN1Null>(field);
}
return(isNull);
}
public static bool isOptional(ElementInfo elementInfo)
{
bool result = false;
if (elementInfo.hasPreparedInfo())
{
result = elementInfo.PreparedASN1ElementInfo.IsOptional ||
elementInfo.PreparedASN1ElementInfo.HasDefaultValue;
}
else
{
result = elementInfo.ASN1ElementInfo != null && elementInfo.ASN1ElementInfo.IsOptional;
}
return(result);
}
public static bool isSequenceSetOf(ElementInfo elementInfo)
{
bool isEqual = false;
if (elementInfo.hasPreparedInfo())
{
isEqual = ((ASN1SequenceOfMetadata)elementInfo.PreparedInfo.TypeMetadata).IsSetOf;
}
else
{
ASN1SequenceOf seq = getAttribute <ASN1SequenceOf>(elementInfo.AnnotatedClass);
isEqual = seq.IsSetOf;
}
return(isEqual);
}
public static bool isDefaultField(ICustomAttributeProvider field, ElementInfo elementInfo)
{
if (elementInfo.hasPreparedInfo())
{
return(elementInfo.hasPreparedASN1ElementInfo() && elementInfo.PreparedASN1ElementInfo.HasDefaultValue);
}
else if (isAttributePresent <ASN1Element>(field))
{
return(getAttribute <ASN1Element>(field).HasDefaultValue);
}
else
{
return(false);
}
}
public static bool isOptionalField(ICustomAttributeProvider field, ElementInfo elementInfo)
{
if (elementInfo.hasPreparedInfo())
{
return(elementInfo.hasPreparedASN1ElementInfo() && (elementInfo.PreparedASN1ElementInfo.IsOptional || elementInfo.PreparedASN1ElementInfo.HasDefaultValue));
}
else if (isAttributePresent <ASN1Element>(field))
{
ASN1Element info = getAttribute <ASN1Element>(field);
return(info.IsOptional || info.HasDefaultValue);
}
else
{
return(false);
}
}
public static int getStringTagForElement(ElementInfo elementInfo)
{
int result = UniversalTags.PrintableString;
if (elementInfo.hasPreparedInfo())
{
result = ((ASN1StringMetadata)elementInfo.PreparedInfo.TypeMetadata).StringType;
}
else if (elementInfo.isAttributePresent <ASN1String>())
{
ASN1String val = elementInfo.getAttribute <ASN1String>();
result = val.StringType;
}
else if (elementInfo.ParentAnnotatedClass != null && elementInfo.isParentAttributePresent <ASN1String>())
{
ASN1String value = elementInfo.getParentAttribute <ASN1String>();
result = value.StringType;
}
return(result);
}
/// <param name="obj">The encoded sequence</param>
/// <param name="fieldIdx">Index of the sequence field to be encoded</param>
/// <param name="field">Field of the encoded sequence to be encoded</param>
/// <param name="stream"></param>
/// <param name="elementInfo">ElementInfo for the encoded sequence</param>
public virtual int encodeSequenceField(object obj, int fieldIdx, PropertyInfo field, System.IO.Stream stream, ElementInfo elementInfo)
{
ElementInfo info = new ElementInfo();
info.AnnotatedClass = field;
if (elementInfo.hasPreparedInfo())
{
info.PreparedInfo = elementInfo.PreparedInfo.getPropertyMetadata(fieldIdx);
}
else
{
info.ASN1ElementInfo = CoderUtils.getAttribute <ASN1Element>(field);
}
if (CoderUtils.isNullField(field, info))
{
return(encodeNull(obj, stream, elementInfo));
}
else
{
object invokeObjResult = invokeGetterMethodForField(field, obj, info);
if (invokeObjResult == null)
{
CoderUtils.checkForOptionalField(field, info);
return(0);
}
else if (CoderUtils.isDefaultField(field, info))
{
// skip the field if the current value equals to the default value (this is optional for BER, but mandatory for DER)
object newSequenceInstance = Activator.CreateInstance(obj.GetType());
CoderUtils.initDefaultValues(newSequenceInstance);
object defaultFieldValue = invokeGetterMethodForField(field, newSequenceInstance, info);
return(CoderUtils.AreEqual(defaultFieldValue, invokeObjResult) ? 0 : encodeClassType(invokeObjResult, stream, info));
}
else
{
return(encodeClassType(invokeObjResult, stream, info));
}
}
}
public virtual DecodedObject <object> decodeChoice(DecodedObject <object> decodedTag, System.Type objectClass, ElementInfo elementInfo, System.IO.Stream stream)
{
object choice = createInstanceForElement(objectClass, elementInfo);
DecodedObject <object> val = null;
PropertyInfo[] fields = elementInfo.getProperties(objectClass);
int fieldIdx = 0;
foreach (PropertyInfo field in fields)
{
ElementInfo info = new ElementInfo();
info.AnnotatedClass = field;
if (elementInfo.hasPreparedInfo())
{
info.PreparedInfo = elementInfo.PreparedInfo.getPropertyMetadata(fieldIdx);
}
else
{
info.ASN1ElementInfo = CoderUtils.getAttribute <ASN1Element>(field);
}
val = decodeClassType(decodedTag, field.PropertyType, info, stream);
fieldIdx++;
if (val != null)
{
invokeSelectMethodForField(field, choice, val.Value, info);
break;
}
;
}
if (val == null && !CoderUtils.isOptional(elementInfo))
{
throw new System.ArgumentException("The choice '" + objectClass.ToString() + "' does not have a selected item!");
}
else
{
return(new DecodedObject <object>(choice, val != null?val.Size:0));
}
}
protected ElementInfo getChoiceSelectedElement(Object obj, ElementInfo elementInfo)
{
ElementInfo info = null;
PropertyInfo[] fields = elementInfo.getProperties(obj.GetType());
int fieldIdx = 0;
foreach (PropertyInfo field in fields)
{
info = new ElementInfo();
info.AnnotatedClass = field;
if (elementInfo.hasPreparedInfo())
{
info.PreparedInfo = (elementInfo.PreparedInfo.getPropertyMetadata(fieldIdx));
}
else
{
info.ASN1ElementInfo = CoderUtils.getAttribute <ASN1Element>(field);
}
if (invokeSelectedMethodForField(field, obj, info))
{
break;
}
else
{
info = null;
}
fieldIdx++;
}
if (info == null)
{
throw new System.ArgumentException("The choice '" + obj.ToString() + "' does not have a selected item!");
}
return(info);
}
public virtual DecodedObject <object> decodeSequenceField(DecodedObject <object> fieldTag, object sequenceObj, int fieldIdx, PropertyInfo field, System.IO.Stream stream, ElementInfo elementInfo, bool checkOptional)
{
ElementInfo info = new ElementInfo();
info.AnnotatedClass = field;
info.MaxAvailableLen = elementInfo.MaxAvailableLen;
if (elementInfo.hasPreparedInfo())
{
info.PreparedInfo = elementInfo.PreparedInfo.getPropertyMetadata(fieldIdx);
}
else
{
info.ASN1ElementInfo = CoderUtils.getAttribute <ASN1Element>(field);
}
if (CoderUtils.isNullField(field, info))
{
return(decodeNull(fieldTag, field.PropertyType, info, stream));
}
else
{
DecodedObject <object> val = decodeClassType(fieldTag, field.PropertyType, info, stream);
if (val != null)
{
invokeSetterMethodForField(field, sequenceObj, val.Value, info);
}
else
{
if (checkOptional)
{
CoderUtils.checkForOptionalField(field, info);
}
}
return(val);
}
}
public virtual int encodeClassType(object obj, System.IO.Stream stream, ElementInfo elementInfo)
{
int resultSize = 0;
if (elementInfo.hasPreparedInfo())
{
resultSize += elementInfo.PreparedInfo.TypeMetadata.encode(this, obj, stream, elementInfo);
}
else
if (obj is IASN1PreparedElement)
{
resultSize += encodePreparedElement(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1SequenceOf>())
{
resultSize += encodeSequenceOf(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Sequence>())
{
resultSize += encodeSequence(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Choice>())
{
resultSize += encodeChoice(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1BoxedType>())
{
resultSize += encodeBoxedType(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Enum>())
{
resultSize += encodeEnum(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Boolean>())
{
resultSize += encodeBoolean(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Any>())
{
resultSize += encodeAny(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Integer>())
{
resultSize += encodeInteger(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Real>())
{
resultSize += encodeReal(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1OctetString>())
{
resultSize += encodeOctetString(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1BitString>() || obj.GetType().Equals(typeof(BitString)))
{
resultSize += encodeBitString(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1ObjectIdentifier>() || obj.GetType().Equals(typeof(ObjectIdentifier)))
{
resultSize += encodeObjectIdentifier(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1String>())
{
resultSize += encodeString(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Null>())
{
resultSize += encodeNull(obj, stream, elementInfo);
}
else
if (elementInfo.isAttributePresent <ASN1Element>())
{
resultSize += encodeElement(obj, stream, elementInfo);
}
else
{
resultSize += encodeCSElement(obj, stream, elementInfo);
}
return(resultSize);
}
public virtual DecodedObject <object> decodeSequence(DecodedObject <object> decodedTag, System.Type objectClass, ElementInfo elementInfo, System.IO.Stream stream)
{
object sequence = createInstanceForElement(objectClass, elementInfo);
initDefaultValues(sequence);
DecodedObject <object> fieldTag = null;
int maxSeqLen = elementInfo.MaxAvailableLen;
int sizeOfSequence = 0;
if (maxSeqLen == -1 || maxSeqLen > 0)
{
fieldTag = decodeTag(stream);
if (fieldTag != null)
{
sizeOfSequence += fieldTag.Size;
}
}
PropertyInfo[] fields = elementInfo.getProperties(objectClass);
for (int i = 0; i < fields.Length; i++)
{
PropertyInfo field = fields[i];
DecodedObject <object> obj = decodeSequenceField(
fieldTag, sequence, i, field, stream, elementInfo, true
);
if (obj != null)
{
sizeOfSequence += obj.Size;
bool isAny = false;
if (i + 1 == fields.Length - 1)
{
ElementInfo info = new ElementInfo();
info.AnnotatedClass = (fields[i + 1]);
info.MaxAvailableLen = (elementInfo.MaxAvailableLen);
if (elementInfo.hasPreparedInfo())
{
info.PreparedInfo = (elementInfo.PreparedInfo.getPropertyMetadata(i + 1));
}
else
{
info.ASN1ElementInfo = CoderUtils.getAttribute <ASN1Element>(fields[i + 1]);
}
isAny = CoderUtils.isAnyField(fields[i + 1], info);
}
if (maxSeqLen != -1)
{
elementInfo.MaxAvailableLen = (maxSeqLen - sizeOfSequence);
}
if (!isAny)
{
if (i < fields.Length - 1)
{
if (maxSeqLen == -1 || elementInfo.MaxAvailableLen > 0)
{
fieldTag = decodeTag(stream);
if (fieldTag != null)
{
sizeOfSequence += fieldTag.Size;
}
else
{
break;
}
}
else
{
fieldTag = null;
}
}
}
}
;
}
return(new DecodedObject <object>(sequence, sizeOfSequence));
}
public virtual DecodedObject <object> decodeClassType(DecodedObject <object> decodedTag, System.Type objectClass, ElementInfo elementInfo, System.IO.Stream stream)
{
if (CoderUtils.isImplements(objectClass, typeof(IASN1PreparedElement)))
{
return(decodePreparedElement(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.hasPreparedInfo() && elementInfo.PreparedInfo.TypeMetadata != null) // Pavel
{
return(elementInfo.PreparedInfo.TypeMetadata.decode(
this, decodedTag, objectClass, elementInfo, stream
));
}
else
if (elementInfo.isAttributePresent <ASN1SequenceOf>())
{
return(decodeSequenceOf(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Sequence>())
{
return(decodeSequence(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Choice>())
{
return(decodeChoice(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1BoxedType>())
{
return(decodeBoxedType(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Enum>())
{
return(decodeEnum(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Boolean>())
{
return(decodeBoolean(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Any>())
{
return(decodeAny(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Integer>())
{
return(decodeInteger(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Real>())
{
return(decodeReal(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1OctetString>())
{
return(decodeOctetString(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1BitString>() || elementInfo.AnnotatedClass.Equals(typeof(BitString)))
{
return(decodeBitString(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1ObjectIdentifier>() || elementInfo.AnnotatedClass.Equals(typeof(ObjectIdentifier)))
{
return(decodeObjectIdentifier(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1String>())
{
return(decodeString(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Null>())
{
return(decodeNull(decodedTag, objectClass, elementInfo, stream));
}
else
if (elementInfo.isAttributePresent <ASN1Element>())
{
return(decodeElement(decodedTag, objectClass, elementInfo, stream));
}
else
{
return(decodeCSElement(decodedTag, objectClass, elementInfo, stream));
}
}
