private MimePart ReadMimePart(string uri)
{
MimePart part = null;
if ((uri == null) || (uri.Length == 0))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(System.Runtime.Serialization.SR.GetString("MtomInvalidEmptyURI")));
}
string key = null;
if (uri.StartsWith(MimeGlobals.ContentIDScheme, StringComparison.Ordinal))
{
key = string.Format(CultureInfo.InvariantCulture, "<{0}>", new object[] { Uri.UnescapeDataString(uri.Substring(MimeGlobals.ContentIDScheme.Length)) });
}
else if (uri.StartsWith("<", StringComparison.Ordinal))
{
key = uri;
}
if (key == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(System.Runtime.Serialization.SR.GetString("MtomInvalidCIDUri", new object[] { uri })));
}
if ((this.mimeParts == null) || !this.mimeParts.TryGetValue(key, out part))
{
while ((part == null) && this.mimeReader.ReadNextPart())
{
MimeHeaders headers = this.mimeReader.ReadHeaders(this.maxBufferSize, ref this.bufferRemaining);
Stream contentStream = this.mimeReader.GetContentStream();
if (contentStream == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(System.Runtime.Serialization.SR.GetString("MtomMessageInvalidContentInMimePart")));
}
ContentIDHeader header = (headers == null) ? null : headers.ContentID;
if ((header == null) || (header.Value == null))
{
int count = 0x100;
byte[] buffer = new byte[count];
while (contentStream.Read(buffer, 0, count) > 0)
{
}
}
else
{
string str2 = headers.ContentID.Value;
MimePart part2 = new MimePart(contentStream, headers);
if (this.mimeParts == null)
{
this.mimeParts = new Dictionary<string, MimePart>();
}
this.mimeParts.Add(str2, part2);
if (str2.Equals(key))
{
part = part2;
}
else
{
part2.GetBuffer(this.maxBufferSize, ref this.bufferRemaining);
}
}
}
if (part == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(System.Runtime.Serialization.SR.GetString("MtomPartNotFound", new object[] { uri })));
}
}
else if (part.ReferencedFromInfoset)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(System.Runtime.Serialization.SR.GetString("MtomMimePartReferencedMoreThanOnce", new object[] { key })));
}
part.ReferencedFromInfoset = true;
return part;
}
MimePart ReadMimePart(string uri)
{
MimePart part = null;
if (uri == null || uri.Length == 0)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.MtomInvalidEmptyURI)));
string contentID = null;
if (uri.StartsWith(MimeGlobals.ContentIDScheme, StringComparison.Ordinal))
contentID = String.Format(CultureInfo.InvariantCulture, "<{0}>", Uri.UnescapeDataString(uri.Substring(MimeGlobals.ContentIDScheme.Length)));
else if (uri.StartsWith("<", StringComparison.Ordinal))
contentID = uri;
if (contentID == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.MtomInvalidCIDUri, uri)));
if (mimeParts != null && mimeParts.TryGetValue(contentID, out part))
{
if (part.ReferencedFromInfoset)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.MtomMimePartReferencedMoreThanOnce, contentID)));
}
else
{
int maxMimeParts = AppSettings.MaxMimeParts;
while (part == null && mimeReader.ReadNextPart())
{
MimeHeaders headers = mimeReader.ReadHeaders(this.maxBufferSize, ref this.bufferRemaining);
Stream contentStream = mimeReader.GetContentStream();
if (contentStream == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.MtomMessageInvalidContentInMimePart)));
ContentIDHeader contentIDHeader = (headers == null) ? null : headers.ContentID;
if (contentIDHeader == null || contentIDHeader.Value == null)
{
// Skip content if Content-ID header is not present
int size = 256;
byte[] bytes = new byte[size];
int read = 0;
do
{
read = contentStream.Read(bytes, 0, size);
}
while (read > 0);
continue;
}
string currentContentID = headers.ContentID.Value;
MimePart currentPart = new MimePart(contentStream, headers);
if (mimeParts == null)
mimeParts = new Dictionary<string, MimePart>();
mimeParts.Add(currentContentID, currentPart);
if (mimeParts.Count > maxMimeParts)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.MaxMimePartsExceeded, maxMimeParts, AppSettings.MaxMimePartsAppSettingsString)));
if (currentContentID.Equals(contentID))
part = currentPart;
else
currentPart.GetBuffer(this.maxBufferSize, ref this.bufferRemaining);
}
if (part == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.MtomPartNotFound, uri)));
}
part.ReferencedFromInfoset = true;
return part;
}
