private void ParseRequestLine(string requestLine, out string httpMethod, out Uri requestUri)
{
int index = requestLine.IndexOf(' ');
if ((index <= 0) || ((requestLine.Length - 3) <= index))
{
throw new ODataException(Strings.ODataBatchReaderStream_InvalidRequestLine(requestLine));
}
int num2 = requestLine.LastIndexOf(' ');
if (((num2 < 0) || (((num2 - index) - 1) <= 0)) || ((requestLine.Length - 1) <= num2))
{
throw new ODataException(Strings.ODataBatchReaderStream_InvalidRequestLine(requestLine));
}
httpMethod = requestLine.Substring(0, index);
string uriString = requestLine.Substring(index + 1, (num2 - index) - 1);
string strB = requestLine.Substring(num2 + 1);
if (string.CompareOrdinal("HTTP/1.1", strB) != 0)
{
throw new ODataException(Strings.ODataBatchReaderStream_InvalidHttpVersionSpecified(strB, "HTTP/1.1"));
}
HttpUtils.ValidateHttpMethod(httpMethod);
if (this.batchStream.ChangeSetBoundary == null)
{
if (string.CompareOrdinal(httpMethod, "GET") != 0)
{
throw new ODataException(Strings.ODataBatch_InvalidHttpMethodForQueryOperation(httpMethod));
}
}
else if (string.CompareOrdinal(httpMethod, "GET") == 0)
{
throw new ODataException(Strings.ODataBatch_InvalidHttpMethodForChangeSetRequest(httpMethod));
}
requestUri = new Uri(uriString, UriKind.RelativeOrAbsolute);
requestUri = ODataBatchUtils.CreateOperationRequestUri(requestUri, this.inputContext.MessageReaderSettings.BaseUri, this.urlResolver);
}
/// <summary>
/// Parses the request line of a batch operation request.
/// </summary>
/// <param name="requestLine">The request line as a string.</param>
/// <param name="httpMethod">The parsed HTTP method of the request.</param>
/// <param name="requestUri">The parsed <see cref="Uri"/> of the request.</param>
private void ParseRequestLine(string requestLine, out string httpMethod, out Uri requestUri)
{
Debug.Assert(!this.inputContext.ReadingResponse, "Must only be called for requests.");
// Batch Request: POST /Customers HTTP/1.1
// Since the uri can contain spaces, the only way to read the request url, is to
// check for first space character and last space character and anything between
// them.
int firstSpaceIndex = requestLine.IndexOf(' ');
// Check whether there are enough characters after the first space for the 2nd and 3rd segments
// (and a whitespace in between)
if (firstSpaceIndex <= 0 || requestLine.Length - 3 <= firstSpaceIndex)
{
// only 1 segment or empty first segment or not enough left for 2nd and 3rd segments
throw new ODataException(Strings.ODataBatchReaderStream_InvalidRequestLine(requestLine));
}
int lastSpaceIndex = requestLine.LastIndexOf(' ');
if (lastSpaceIndex < 0 || lastSpaceIndex - firstSpaceIndex - 1 <= 0 || requestLine.Length - 1 <= lastSpaceIndex)
{
// only 2 segments or empty 2nd or 3rd segments
// only 1 segment or empty first segment or not enough left for 2nd and 3rd segments
throw new ODataException(Strings.ODataBatchReaderStream_InvalidRequestLine(requestLine));
}
httpMethod = requestLine.Substring(0, firstSpaceIndex); // Request - Http method
string uriSegment = requestLine.Substring(firstSpaceIndex + 1, lastSpaceIndex - firstSpaceIndex - 1); // Request - Request uri
string httpVersionSegment = requestLine.Substring(lastSpaceIndex + 1); // Request - Http version
// Validate HttpVersion
if (string.CompareOrdinal(ODataConstants.HttpVersionInBatching, httpVersionSegment) != 0)
{
throw new ODataException(Strings.ODataBatchReaderStream_InvalidHttpVersionSpecified(httpVersionSegment, ODataConstants.HttpVersionInBatching));
}
// NOTE: this method will throw if the method is not recognized.
HttpUtils.ValidateHttpMethod(httpMethod);
// Validate the HTTP method when reading a request
if (this.batchStream.ChangeSetBoundary == null)
{
// only allow GET requests for query operations
if (!HttpUtils.IsQueryMethod(httpMethod))
{
throw new ODataException(Strings.ODataBatch_InvalidHttpMethodForQueryOperation(httpMethod));
}
}
else
{
// allow all methods except for GET
if (HttpUtils.IsQueryMethod(httpMethod))
{
throw new ODataException(Strings.ODataBatch_InvalidHttpMethodForChangeSetRequest(httpMethod));
}
}
requestUri = new Uri(uriSegment, UriKind.RelativeOrAbsolute);
requestUri = ODataBatchUtils.CreateOperationRequestUri(requestUri, this.inputContext.MessageReaderSettings.BaseUri, this.urlResolver);
}