/// <summary>Gets content type and encoding information from the headers if possible; defaults otherwise.</summary> /// <param name="accept">A comma-separated list of client-supported MIME Accept types.</param> /// <param name="acceptCharset">The specification for the character set encoding that the client requested.</param> /// <param name="contentType">After invocation, content type for the exception.</param> /// <param name="encoding">After invocation, encoding for the exception.</param> private static void TryGetResponseFormatForError(string accept, string acceptCharset, out string contentType, out Encoding encoding) { contentType = null; encoding = null; if (accept != null) { try { string[] availableTypes = new string[] { XmlConstants.MimeApplicationXml, XmlConstants.MimeApplicationJson }; contentType = HttpProcessUtility.SelectMimeType(accept, availableTypes); } catch (DataServiceException) { // Ignore formatting erros in Accept and rely on text. } } if (acceptCharset != null) { try { encoding = HttpProcessUtility.EncodingFromAcceptCharset(acceptCharset); } catch (DataServiceException) { // Ignore formatting erros in Accept-Charset and rely on text. } } contentType = contentType ?? XmlConstants.MimeApplicationXml; encoding = encoding ?? HttpProcessUtility.FallbackEncoding; }
private static void TryGetResponseFormatForError(string accept, string acceptCharset, Version responseVersion, out string contentType, out Encoding encoding, out string contentTypeWithCharsetAppended) { contentType = null; encoding = null; contentTypeWithCharsetAppended = null; if (accept != null) { try { contentType = WebUtil.SelectResponseMediaType(accept, false, responseVersion < RequestDescription.Version3Dot0); } catch (DataServiceException) { } } if (acceptCharset != null) { try { encoding = HttpProcessUtility.EncodingFromAcceptCharset(acceptCharset); } catch (DataServiceException) { } } contentType = contentType ?? "application/xml"; encoding = encoding ?? HttpProcessUtility.FallbackEncoding; contentTypeWithCharsetAppended = contentType + ";" + "charset" + "=" + encoding.WebName; }
internal ResponseBodyWriter(bool hasMoved, IDataService service, IEnumerator queryResults, RequestDescription requestDescription, IODataResponseMessage responseMessage, ODataPayloadKind payloadKind) { this.hasMoved = hasMoved; this.service = service; this.queryResults = queryResults; this.requestDescription = requestDescription; this.responseMessage = responseMessage; this.payloadKind = payloadKind; this.encoding = HttpProcessUtility.EncodingFromAcceptCharset(this.service.OperationContext.Host.RequestAcceptCharSet); if ((((payloadKind == ODataPayloadKind.Entry) || (payloadKind == ODataPayloadKind.Feed)) || ((payloadKind == ODataPayloadKind.Property) || (payloadKind == ODataPayloadKind.Collection))) || (((payloadKind == ODataPayloadKind.EntityReferenceLink) || (payloadKind == ODataPayloadKind.EntityReferenceLinks)) || (((payloadKind == ODataPayloadKind.Error) || (payloadKind == ODataPayloadKind.ServiceDocument)) || (payloadKind == ODataPayloadKind.Parameter)))) { DataServiceHostWrapper host = service.OperationContext.Host; if (WebUtil.GetEffectiveMaxResponseVersion(service.Configuration.DataServiceBehavior.MaxProtocolVersion, host.RequestMaxVersion) > RequestDescription.Version2Dot0) { bool isEntityOrFeed = (payloadKind == ODataPayloadKind.Entry) || (payloadKind == ODataPayloadKind.Feed); if (WebUtil.ResponseMediaTypeWouldBeJsonLight(host.RequestAccept, isEntityOrFeed)) { requestDescription.VerifyAndRaiseResponseVersion(RequestDescription.Version3Dot0, service); host.ResponseVersion = RequestDescription.Version3Dot0.ToString() + ";"; } } } if (this.requestDescription.TargetKind == RequestTargetKind.MediaResource) { this.mediaResourceStream = service.StreamProvider.GetReadStream(this.queryResults.Current, RequestDescription.GetStreamProperty(this.requestDescription), this.service.OperationContext); } else if (payloadKind != ODataPayloadKind.BinaryValue) { string requestAcceptCharSet = this.service.OperationContext.Host.RequestAcceptCharSet; if (string.IsNullOrEmpty(requestAcceptCharSet) || (requestAcceptCharSet == "*")) { requestAcceptCharSet = "UTF-8"; } if ((payloadKind == ODataPayloadKind.Value) && !string.IsNullOrEmpty(this.requestDescription.MimeType)) { this.messageWriter = CreateMessageWriter(this.AbsoluteServiceUri, this.service, this.requestDescription.ActualResponseVersion, responseMessage, ODataFormat.RawValue); } else { this.messageWriter = CreateMessageWriter(this.AbsoluteServiceUri, this.service, this.requestDescription.ActualResponseVersion, responseMessage, this.service.OperationContext.Host.RequestAccept, requestAcceptCharSet); } try { this.contentFormat = ODataUtils.SetHeadersForPayload(this.messageWriter, payloadKind); if ((payloadKind == ODataPayloadKind.Value) && !string.IsNullOrEmpty(this.requestDescription.MimeType)) { responseMessage.SetHeader("Content-Type", this.requestDescription.MimeType); } } catch (ODataContentTypeException exception) { throw new DataServiceException(0x19f, null, System.Data.Services.Strings.DataServiceException_UnsupportedMediaType, null, exception); } string headerValue = this.requestDescription.ResponseVersion.ToString() + ";"; responseMessage.SetHeader("DataServiceVersion", headerValue); } }