internal static ClassificationTypeDefinition OperatorClassificationDefinition = null; // Set via MEF
#endregion
#region IDlrClassifierProvider
public IClassifier GetClassifier(ITextBuffer buffer)
{
if (_categoryMap == null)
{
_categoryMap = FillCategoryMap(_classificationRegistry);
}
Genero4glClassifier res = null;
if (buffer != null && buffer.Properties != null)
{
if (!buffer.Properties.TryGetProperty <Genero4glClassifier>(typeof(Genero4glClassifier), out res) &&
ContentTypes != null &&
ContentTypes.Any(x => x != null &&
buffer.ContentType != null &&
buffer.ContentType.IsOfType(x.TypeName)))
{
res = new Genero4glClassifier(this, buffer);
buffer.Properties.AddProperty(typeof(Genero4glClassifier), res);
}
}
if (VSGeneroPackage.Instance != null)
{
if (VSGeneroPackage.Instance.GlobalFunctionProvider == null)
{
VSGeneroPackage.Instance.GlobalFunctionProvider = _PublicFunctionProvider;
}
if (VSGeneroPackage.Instance.ProgramFileProvider == null)
{
VSGeneroPackage.Instance.ProgramFileProvider = _ProgramFileProvider;
}
if (VSGeneroPackage.Instance.GlobalDatabaseProvider == null)
{
VSGeneroPackage.Instance.GlobalDatabaseProvider = _DatabaseInfoProvider;
}
if (VSGeneroPackage.Instance.BuildTaskProvider == null)
{
VSGeneroPackage.Instance.BuildTaskProvider = _BuildTaskProvider;
}
if (VSGeneroPackage.Instance.CommentValidators == null)
{
VSGeneroPackage.Instance.CommentValidators = _CommentValidators;
}
}
if (res == null)
{
return(GetClassifier());
}
return(res);
}
/// <summary>
/// Verifies the semantic rule
/// </summary>
/// <param name="context">The Interop service context</param>
/// <param name="info">out parameter to return violation information when rule does not pass</param>
/// <returns>true if rule passes; false otherwise</returns>
public override bool?Verify(ServiceContext context, out ExtensionRuleViolationInfo info)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
info = null;
bool?passed = false;
string contentType = context.ResponseHttpHeaders.GetHeaderValue("Content-Type");
if (!string.IsNullOrEmpty(contentType))
{
string mediaType = null;
string subType = null;
string[] parts = contentType.Split(';');
if (parts.Length >= 1)
{
mediaType = parts[0].Trim().ToLowerInvariant();
for (int i = 1; i < parts.Length; i++)
{
string[] pair = parts[i].Split(new char[] { '=' }, 2);
if (pair.Length == 2)
{
if (pair[0].Equals("type", StringComparison.OrdinalIgnoreCase))
{
subType = pair[1].ToLowerInvariant();
break;
}
}
}
}
passed = ContentTypes.Any(x => mediaType.Equals(x, StringComparison.Ordinal));
if (passed.Value)
{
if (!string.IsNullOrEmpty(subType) && mediaType.Equals("application/atom+xml", StringComparison.Ordinal))
{
passed = ODataSubtypes.Any(x => subType.Equals(x, StringComparison.Ordinal));
}
}
}
if (!passed.Value)
{
info = new ExtensionRuleViolationInfo(this.ErrorMessage, context.Destination, contentType);
}
return(passed);
}
private void SaveRelationships(OpcRelationships relationships)
{
if (!ContentTypes.Any(ct => string.Equals(ct.Extension, "rels", StringComparison.OrdinalIgnoreCase)))
{
ContentTypes.Add(new OpcContentType("rels", OpcKnownMimeTypes.OpenXmlRelationship, OpcContentTypeMode.Default));
}
var path = relationships.DocumentUri.ToPackagePath();
var entry = Archive.GetEntry(path) ?? Archive.CreateEntry(path);
using (var stream = entry.Open())
{
stream.SetLength(0L);
var newXml = relationships.ToXml();
newXml.Save(stream, SaveOptions.None);
}
}
public virtual IOutputFormatter SelectFormatter(
OutputFormatterContext formatterContext,
IEnumerable <IOutputFormatter> formatters)
{
var logger = formatterContext.HttpContext.RequestServices.GetRequiredService <ILogger <ObjectResult> >();
// Check if any content-type was explicitly set (for example, via ProducesAttribute
// or Url path extension mapping). If yes, then ignore content-negotiation and use this content-type.
if (ContentTypes.Count == 1)
{
logger.LogVerbose(
"Skipped content negotiation as content type '{ContentType}' is explicitly set for the response.",
ContentTypes[0]);
return(SelectFormatterUsingAnyAcceptableContentType(formatterContext,
formatters,
ContentTypes));
}
var sortedAcceptHeaderMediaTypes = GetSortedAcceptHeaderMediaTypes(formatterContext);
IOutputFormatter selectedFormatter = null;
if (ContentTypes == null || ContentTypes.Count == 0)
{
// Check if we have enough information to do content-negotiation, otherwise get the first formatter
// which can write the type.
MediaTypeHeaderValue requestContentType = null;
MediaTypeHeaderValue.TryParse(
formatterContext.HttpContext.Request.ContentType,
out requestContentType);
if (!sortedAcceptHeaderMediaTypes.Any() && requestContentType == null)
{
logger.LogVerbose("No information found on request to perform content negotiation.");
return(SelectFormatterBasedOnTypeMatch(formatterContext, formatters));
}
//
// Content-Negotiation starts from this point on.
//
// 1. Select based on sorted accept headers.
if (sortedAcceptHeaderMediaTypes.Any())
{
selectedFormatter = SelectFormatterUsingSortedAcceptHeaders(
formatterContext,
formatters,
sortedAcceptHeaderMediaTypes);
}
// 2. No formatter was found based on accept headers, fall back on request Content-Type header.
if (selectedFormatter == null && requestContentType != null)
{
selectedFormatter = SelectFormatterUsingAnyAcceptableContentType(
formatterContext,
formatters,
new[] { requestContentType });
}
// 3. No formatter was found based on Accept and request Content-Type headers, so
// fallback on type based match.
if (selectedFormatter == null)
{
logger.LogVerbose("Could not find an output formatter based on content negotiation.");
// Set this flag to indicate that content-negotiation has failed to let formatters decide
// if they want to write the response or not.
formatterContext.FailedContentNegotiation = true;
return(SelectFormatterBasedOnTypeMatch(formatterContext, formatters));
}
}
else
{
if (sortedAcceptHeaderMediaTypes.Any())
{
// Filter and remove accept headers which cannot support any of the user specified content types.
var filteredAndSortedAcceptHeaders = sortedAcceptHeaderMediaTypes
.Where(acceptHeader =>
ContentTypes.Any(contentType =>
contentType.IsSubsetOf(acceptHeader)));
selectedFormatter = SelectFormatterUsingSortedAcceptHeaders(
formatterContext,
formatters,
filteredAndSortedAcceptHeaders);
}
if (selectedFormatter == null)
{
// Either there were no acceptHeaders that were present OR
// There were no accept headers which matched OR
// There were acceptHeaders which matched but there was no formatter
// which supported any of them.
// In any of these cases, if the user has specified content types,
// do a last effort to find a formatter which can write any of the user specified content type.
selectedFormatter = SelectFormatterUsingAnyAcceptableContentType(
formatterContext,
formatters,
ContentTypes);
}
}
return(selectedFormatter);
}
public virtual IOutputFormatter SelectFormatter(OutputFormatterContext formatterContext,
IEnumerable <IOutputFormatter> formatters)
{
var incomingAcceptHeaderMediaTypes = formatterContext.ActionContext.HttpContext.Request.GetTypedHeaders().Accept ??
new MediaTypeHeaderValue[] { };
// By default we want to ignore considering accept headers for content negotiation when
// they have a media type like */* in them. Browsers typically have these media types.
// In these cases we would want the first formatter in the list of output formatters to
// write the response. This default behavior can be changed through options, so checking here.
var options = formatterContext.ActionContext.HttpContext
.RequestServices
.GetRequiredService <IOptions <MvcOptions> >()
.Options;
var respectAcceptHeader = true;
if (options.RespectBrowserAcceptHeader == false &&
incomingAcceptHeaderMediaTypes.Any(mediaType => mediaType.MatchesAllTypes))
{
respectAcceptHeader = false;
}
IEnumerable <MediaTypeHeaderValue> sortedAcceptHeaderMediaTypes = null;
if (respectAcceptHeader)
{
sortedAcceptHeaderMediaTypes = SortMediaTypeHeaderValues(incomingAcceptHeaderMediaTypes)
.Where(header => header.Quality != HeaderQuality.NoMatch);
}
IOutputFormatter selectedFormatter = null;
if (ContentTypes == null || ContentTypes.Count == 0)
{
if (respectAcceptHeader)
{
// Select based on sorted accept headers.
selectedFormatter = SelectFormatterUsingSortedAcceptHeaders(
formatterContext,
formatters,
sortedAcceptHeaderMediaTypes);
}
if (selectedFormatter == null)
{
var requestContentType = formatterContext.ActionContext.HttpContext.Request.ContentType;
// No formatter found based on accept headers, fall back on request contentType.
MediaTypeHeaderValue incomingContentType = null;
MediaTypeHeaderValue.TryParse(requestContentType, out incomingContentType);
// In case the incomingContentType is null (as can be the case with get requests),
// we need to pick the first formatter which
// can support writing this type.
var contentTypes = new[] { incomingContentType };
selectedFormatter = SelectFormatterUsingAnyAcceptableContentType(
formatterContext,
formatters,
contentTypes);
// This would be the case when no formatter could write the type base on the
// accept headers and the request content type. Fallback on type based match.
if (selectedFormatter == null)
{
foreach (var formatter in formatters)
{
var supportedContentTypes = formatter.GetSupportedContentTypes(
formatterContext.DeclaredType,
formatterContext.Object?.GetType(),
contentType: null);
if (formatter.CanWriteResult(formatterContext, supportedContentTypes?.FirstOrDefault()))
{
return(formatter);
}
}
}
}
}
else if (ContentTypes.Count == 1)
{
// There is only one value that can be supported.
selectedFormatter = SelectFormatterUsingAnyAcceptableContentType(
formatterContext,
formatters,
ContentTypes);
}
else
{
if (respectAcceptHeader)
{
// Filter and remove accept headers which cannot support any of the user specified content types.
var filteredAndSortedAcceptHeaders = sortedAcceptHeaderMediaTypes
.Where(acceptHeader =>
ContentTypes
.Any(contentType =>
contentType.IsSubsetOf(acceptHeader)));
selectedFormatter = SelectFormatterUsingSortedAcceptHeaders(
formatterContext,
formatters,
filteredAndSortedAcceptHeaders);
}
if (selectedFormatter == null)
{
// Either there were no acceptHeaders that were present OR
// There were no accept headers which matched OR
// There were acceptHeaders which matched but there was no formatter
// which supported any of them.
// In any of these cases, if the user has specified content types,
// do a last effort to find a formatter which can write any of the user specified content type.
selectedFormatter = SelectFormatterUsingAnyAcceptableContentType(
formatterContext,
formatters,
ContentTypes);
}
}
return(selectedFormatter);
}
public virtual IOutputFormatter SelectFormatter(OutputFormatterContext formatterContext,
IEnumerable <IOutputFormatter> formatters)
{
var incomingAcceptHeader = HeaderParsingHelpers.GetAcceptHeaders(
formatterContext.ActionContext.HttpContext.Request.Accept);
var sortedAcceptHeaders = SortMediaTypeWithQualityHeaderValues(incomingAcceptHeader)
.Where(header => header.Quality != HttpHeaderUtilitites.NoMatch)
.ToArray();
IOutputFormatter selectedFormatter = null;
if (ContentTypes == null || ContentTypes.Count == 0)
{
// Select based on sorted accept headers.
selectedFormatter = SelectFormatterUsingSortedAcceptHeaders(
formatterContext,
formatters,
sortedAcceptHeaders);
if (selectedFormatter == null)
{
var requestContentType = formatterContext.ActionContext.HttpContext.Request.ContentType;
// No formatter found based on accept headers, fall back on request contentType.
MediaTypeHeaderValue incomingContentType = null;
MediaTypeHeaderValue.TryParse(requestContentType, out incomingContentType);
// In case the incomingContentType is null (as can be the case with get requests),
// we need to pick the first formatter which
// can support writing this type.
var contentTypes = new[] { incomingContentType };
selectedFormatter = SelectFormatterUsingAnyAcceptableContentType(
formatterContext,
formatters,
contentTypes);
// This would be the case when no formatter could write the type base on the
// accept headers and the request content type. Fallback on type based match.
if (selectedFormatter == null)
{
foreach (var formatter in formatters)
{
var supportedContentTypes = formatter.GetSupportedContentTypes(
formatterContext.DeclaredType,
formatterContext.Object?.GetType(),
contentType: null);
if (formatter.CanWriteResult(formatterContext, supportedContentTypes?.FirstOrDefault()))
{
return(formatter);
}
}
}
}
}
else if (ContentTypes.Count == 1)
{
// There is only one value that can be supported.
selectedFormatter = SelectFormatterUsingAnyAcceptableContentType(
formatterContext,
formatters,
ContentTypes);
}
else
{
// Filter and remove accept headers which cannot support any of the user specified content types.
var filteredAndSortedAcceptHeaders = sortedAcceptHeaders
.Where(acceptHeader =>
ContentTypes
.Any(contentType =>
contentType.IsSubsetOf(acceptHeader)))
.ToArray();
if (filteredAndSortedAcceptHeaders.Length > 0)
{
selectedFormatter = SelectFormatterUsingSortedAcceptHeaders(
formatterContext,
formatters,
filteredAndSortedAcceptHeaders);
}
if (selectedFormatter == null)
{
// Either there were no acceptHeaders that were present OR
// There were no accept headers which matched OR
// There were acceptHeaders which matched but there was no formatter
// which supported any of them.
// In any of these cases, if the user has specified content types,
// do a last effort to find a formatter which can write any of the user specified content type.
selectedFormatter = SelectFormatterUsingAnyAcceptableContentType(
formatterContext,
formatters,
ContentTypes);
}
}
return(selectedFormatter);
}
