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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.Xml
{
using System.Runtime.Serialization;
using System.ComponentModel;
[Flags]
public enum XmlDictionaryReaderQuotaTypes
{
MaxDepth = 0x01,
MaxStringContentLength = 0x02,
MaxArrayLength = 0x04,
MaxBytesPerRead = 0x08,
MaxNameTableCharCount = 0x10
}
public sealed class XmlDictionaryReaderQuotas
{
bool readOnly;
int maxStringContentLength;
int maxArrayLength;
int maxDepth;
int maxNameTableCharCount;
int maxBytesPerRead;
XmlDictionaryReaderQuotaTypes modifiedQuotas = 0x00;
const int DefaultMaxDepth = 32;
const int DefaultMaxStringContentLength = 8192;
const int DefaultMaxArrayLength = 16384;
const int DefaultMaxBytesPerRead = 4096;
const int DefaultMaxNameTableCharCount = 16384;
static XmlDictionaryReaderQuotas defaultQuota = new XmlDictionaryReaderQuotas(DefaultMaxDepth, DefaultMaxStringContentLength, DefaultMaxArrayLength, DefaultMaxBytesPerRead, DefaultMaxNameTableCharCount, 0x00);
static XmlDictionaryReaderQuotas maxQuota = new XmlDictionaryReaderQuotas(int.MaxValue, int.MaxValue, int.MaxValue, int.MaxValue, int.MaxValue,
XmlDictionaryReaderQuotaTypes.MaxDepth | XmlDictionaryReaderQuotaTypes.MaxStringContentLength | XmlDictionaryReaderQuotaTypes.MaxArrayLength | XmlDictionaryReaderQuotaTypes.MaxBytesPerRead | XmlDictionaryReaderQuotaTypes.MaxNameTableCharCount);
public XmlDictionaryReaderQuotas()
{
defaultQuota.CopyTo(this);
}
XmlDictionaryReaderQuotas(int maxDepth, int maxStringContentLength, int maxArrayLength, int maxBytesPerRead, int maxNameTableCharCount, XmlDictionaryReaderQuotaTypes modifiedQuotas)
{
this.maxDepth = maxDepth;
this.maxStringContentLength = maxStringContentLength;
this.maxArrayLength = maxArrayLength;
this.maxBytesPerRead = maxBytesPerRead;
this.maxNameTableCharCount = maxNameTableCharCount;
this.modifiedQuotas = modifiedQuotas;
MakeReadOnly();
}
static public XmlDictionaryReaderQuotas Max
{
get
{
return maxQuota;
}
}
public void CopyTo(XmlDictionaryReaderQuotas quotas)
{
if (quotas == null)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("quotas"));
if (quotas.readOnly)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.QuotaCopyReadOnly)));
InternalCopyTo(quotas);
}
internal void InternalCopyTo(XmlDictionaryReaderQuotas quotas)
{
quotas.maxStringContentLength = this.maxStringContentLength;
quotas.maxArrayLength = this.maxArrayLength;
quotas.maxDepth = this.maxDepth;
quotas.maxNameTableCharCount = this.maxNameTableCharCount;
quotas.maxBytesPerRead = this.maxBytesPerRead;
quotas.modifiedQuotas = this.modifiedQuotas;
}
[DefaultValue(DefaultMaxStringContentLength)]
public int MaxStringContentLength
{
get
{
return maxStringContentLength;
}
set
{
if (readOnly)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.QuotaIsReadOnly, "MaxStringContentLength")));
if (value <= 0)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.QuotaMustBePositive), "value"));
maxStringContentLength = value;
this.modifiedQuotas |= XmlDictionaryReaderQuotaTypes.MaxStringContentLength;
}
}
[DefaultValue(DefaultMaxArrayLength)]
public int MaxArrayLength
{
get
{
return maxArrayLength;
}
set
{
if (readOnly)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.QuotaIsReadOnly, "MaxArrayLength")));
if (value <= 0)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.QuotaMustBePositive), "value"));
maxArrayLength = value;
this.modifiedQuotas |= XmlDictionaryReaderQuotaTypes.MaxArrayLength;
}
}
[DefaultValue(DefaultMaxBytesPerRead)]
public int MaxBytesPerRead
{
get
{
return maxBytesPerRead;
}
set
{
if (readOnly)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.QuotaIsReadOnly, "MaxBytesPerRead")));
if (value <= 0)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.QuotaMustBePositive), "value"));
maxBytesPerRead = value;
this.modifiedQuotas |= XmlDictionaryReaderQuotaTypes.MaxBytesPerRead;
}
}
[DefaultValue(DefaultMaxDepth)]
public int MaxDepth
{
get
{
return maxDepth;
}
set
{
if (readOnly)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.QuotaIsReadOnly, "MaxDepth")));
if (value <= 0)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.QuotaMustBePositive), "value"));
maxDepth = value;
this.modifiedQuotas |= XmlDictionaryReaderQuotaTypes.MaxDepth;
}
}
[DefaultValue(DefaultMaxNameTableCharCount)]
public int MaxNameTableCharCount
{
get
{
return maxNameTableCharCount;
}
set
{
if (readOnly)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.QuotaIsReadOnly, "MaxNameTableCharCount")));
if (value <= 0)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.QuotaMustBePositive), "value"));
maxNameTableCharCount = value;
this.modifiedQuotas |= XmlDictionaryReaderQuotaTypes.MaxNameTableCharCount;
}
}
public XmlDictionaryReaderQuotaTypes ModifiedQuotas
{
get
{
return this.modifiedQuotas;
}
}
internal void MakeReadOnly()
{
this.readOnly = true;
}
}
}
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