private ODataBatchOperationHeaders ValidatePartHeaders(ODataBatchOperationHeaders headers, out bool isChangeSetPart)
{
string str;
if (!headers.TryGetValue("Content-Type", out str))
{
throw new ODataException(Strings.ODataBatchReaderStream_MissingContentTypeHeader);
}
if (MediaTypeUtils.MediaTypeAndSubtypeAreEqual(str, "application/http"))
{
string str2;
isChangeSetPart = false;
if (!headers.TryGetValue("Content-Transfer-Encoding", out str2) || (string.Compare(str2, "binary", StringComparison.OrdinalIgnoreCase) != 0))
{
throw new ODataException(Strings.ODataBatchReaderStream_MissingOrInvalidContentEncodingHeader("Content-Transfer-Encoding", "binary"));
}
return(headers);
}
if (!MediaTypeUtils.MediaTypeStartsWithTypeAndSubtype(str, "multipart/mixed"))
{
throw new ODataException(Strings.ODataBatchReaderStream_InvalidContentTypeSpecified("Content-Type", str, "multipart/mixed", "application/http"));
}
isChangeSetPart = true;
if (this.changesetBoundary != null)
{
throw new ODataException(Strings.ODataBatchReaderStream_NestedChangesetsAreNotSupported);
}
return(headers);
}
/// <summary>
/// Creates a batch operation stream from the specified batch stream.
/// </summary>
/// <param name="batchReaderStream">The batch stream to create the operation read stream for.</param>
/// <param name="headers">The headers of the current part; based on the header we create different, optimized stream implementations.</param>
/// <param name="operationListener">The operation listener to be passed to the newly created read stream.</param>
/// <returns>A new <see cref="ODataBatchOperationReadStream"/> instance.</returns>
internal static ODataBatchOperationReadStream CreateBatchOperationReadStream(
ODataBatchReaderStream batchReaderStream,
ODataBatchOperationHeaders headers,
IODataBatchOperationListener operationListener)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(batchReaderStream != null, "batchReaderStream != null");
Debug.Assert(operationListener != null, "operationListener != null");
// See whether we have a Content-Length header
string contentLengthValue;
if (headers.TryGetValue(ODataConstants.ContentLengthHeader, out contentLengthValue))
{
int length = Int32.Parse(contentLengthValue, CultureInfo.InvariantCulture);
if (length < 0)
{
throw new ODataException(Strings.ODataBatchReaderStream_InvalidContentLengthSpecified(contentLengthValue));
}
return(ODataBatchOperationReadStream.Create(batchReaderStream, operationListener, length));
}
return(ODataBatchOperationReadStream.Create(batchReaderStream, operationListener));
}
private ODataBatchOperationRequestMessage CreateOperationRequestMessageImplementation()
{
string str2;
Uri uri;
string str3;
this.operationState = OperationState.MessageCreated;
string requestLine = this.batchStream.ReadLine();
while (requestLine.Length == 0)
{
requestLine = this.batchStream.ReadLine();
}
this.ParseRequestLine(requestLine, out str2, out uri);
ODataBatchOperationHeaders headers = this.batchStream.ReadHeaders();
ODataBatchOperationRequestMessage message = ODataBatchOperationRequestMessage.CreateReadMessage(this.batchStream, str2, uri, headers, this, this.urlResolver);
if (headers.TryGetValue("Content-ID", out str3))
{
if ((str3 != null) && this.urlResolver.ContainsContentId(str3))
{
throw new ODataException(Strings.ODataBatchReader_DuplicateContentIDsNotAllowed(str3));
}
this.contentIdToAddOnNextRead = str3;
}
return(message);
}
/// <summary>
/// Validates the headers that have been read for a part.
/// </summary>
/// <param name="headers">The set of headers to validate.</param>
/// <param name="isChangeSetPart">true if the headers indicate a changset part; otherwise false.</param>
/// <returns>The set of validated headers.</returns>
/// <remarks>
/// An operation part is required to have content type 'application/http' and content transfer
/// encoding 'binary'. A changeset is required to have content type 'multipart/mixed'.
/// Note that we allow additional headers for batch parts; clients of the library can choose
/// to be more strict.
/// </remarks>
private ODataBatchOperationHeaders ValidatePartHeaders(ODataBatchOperationHeaders headers, out bool isChangeSetPart)
{
string contentType;
if (!headers.TryGetValue(ODataConstants.ContentTypeHeader, out contentType))
{
throw new ODataException(Strings.ODataBatchReaderStream_MissingContentTypeHeader);
}
if (MediaTypeUtils.MediaTypeAndSubtypeAreEqual(contentType, MimeConstants.MimeApplicationHttp))
{
isChangeSetPart = false;
// An operation part is required to have application/http content type and
// binary content transfer encoding.
string transferEncoding;
if (!headers.TryGetValue(ODataConstants.ContentTransferEncoding, out transferEncoding) ||
string.Compare(transferEncoding, ODataConstants.BatchContentTransferEncoding, StringComparison.OrdinalIgnoreCase) != 0)
{
throw new ODataException(Strings.ODataBatchReaderStream_MissingOrInvalidContentEncodingHeader(
ODataConstants.ContentTransferEncoding,
ODataConstants.BatchContentTransferEncoding));
}
}
else if (MediaTypeUtils.MediaTypeStartsWithTypeAndSubtype(contentType, MimeConstants.MimeMultipartMixed))
{
isChangeSetPart = true;
if (this.changesetBoundary != null)
{
// Nested changesets are not supported
throw new ODataException(Strings.ODataBatchReaderStream_NestedChangesetsAreNotSupported);
}
}
else
{
throw new ODataException(Strings.ODataBatchReaderStream_InvalidContentTypeSpecified(
ODataConstants.ContentTypeHeader,
contentType,
MimeConstants.MimeMultipartMixed,
MimeConstants.MimeApplicationHttp));
}
return(headers);
}
internal static ODataBatchOperationReadStream CreateBatchOperationReadStream(ODataBatchReaderStream batchReaderStream, ODataBatchOperationHeaders headers, IODataBatchOperationListener operationListener)
{
string str;
if (!headers.TryGetValue("Content-Length", out str))
{
return(ODataBatchOperationReadStream.Create(batchReaderStream, operationListener));
}
int length = int.Parse(str, CultureInfo.InvariantCulture);
if (length < 0)
{
throw new ODataException(Strings.ODataBatchReaderStream_InvalidContentLengthSpecified(str));
}
return(ODataBatchOperationReadStream.Create(batchReaderStream, operationListener, length));
}
/// <summary>
/// Returns the cached <see cref="ODataBatchOperationRequestMessage"/> for reading the content of an operation
/// in a batch request.
/// </summary>
/// <returns>The message that can be used to read the content of the batch request operation from.</returns>
private ODataBatchOperationRequestMessage CreateOperationRequestMessageImplementation()
{
this.operationState = OperationState.MessageCreated;
// Read and parse the request line (skip all empty lines)
string requestLine = this.batchStream.ReadLine();
while (requestLine.Length == 0)
{
requestLine = this.batchStream.ReadLine();
}
string httpMethod;
Uri requestUri;
this.ParseRequestLine(requestLine, out httpMethod, out requestUri);
// Read all headers and create the request message
ODataBatchOperationHeaders headers = this.batchStream.ReadHeaders();
ODataBatchOperationRequestMessage requestMessage = ODataBatchOperationRequestMessage.CreateReadMessage(
this.batchStream,
httpMethod,
requestUri,
headers,
/*operationListener*/ this,
this.urlResolver);
// Add a potential Content-ID header to the URL resolver so that it will be available
// to subsequent operations.
string contentId;
if (headers.TryGetValue(ODataConstants.ContentIdHeader, out contentId))
{
Debug.Assert(this.contentIdToAddOnNextRead == null, "Must not have a content ID to be added to a part.");
if (contentId != null && this.urlResolver.ContainsContentId(contentId))
{
throw new ODataException(Strings.ODataBatchReader_DuplicateContentIDsNotAllowed(contentId));
}
this.contentIdToAddOnNextRead = contentId;
}
return(requestMessage);
}
