/// <summary>
/// Translate the parameter alias, convert node, returned entity set into OData path segment.
/// </summary>
/// <param name="model">The EDM model</param>
/// <param name="path">The odata path segments</param>
/// <param name="parameterAliasNodes">The parameter alias</param>
/// <returns>The translated odata path segments.</returns>
public static IEnumerable <ODataPathSegment> Translate(IEdmModel model, Semantic.ODataPath path,
IDictionary <string, SingleValueNode> parameterAliasNodes)
{
if (model == null)
{
throw Error.ArgumentNull("model");
}
if (path == null)
{
throw Error.ArgumentNull("path");
}
var translator = new ODataPathSegmentTranslator(model, parameterAliasNodes);
return(path.WalkWith(translator));
}
private ODataPath Parse(string serviceRoot, string odataPath, IServiceProvider requestContainer, bool template)
{
ODataUriParser uriParser;
Uri serviceRootUri = null;
Uri fullUri = null;
IEdmModel model = requestContainer.GetRequiredService <IEdmModel>();
if (template)
{
uriParser = new ODataUriParser(model, new Uri(odataPath, UriKind.Relative), requestContainer);
uriParser.EnableUriTemplateParsing = true;
}
else
{
Contract.Assert(serviceRoot != null);
serviceRootUri = new Uri(
serviceRoot.EndsWith("/", StringComparison.Ordinal)
? serviceRoot
: serviceRoot + "/");
// Concatenate the root and path and create a Uri. Using Uri to build a Uri from
// a root and relative path changes the casing on .NetCore. However, odataPath may
// be a full Uri.
if (!Uri.TryCreate(odataPath, UriKind.Absolute, out fullUri))
{
fullUri = new Uri(serviceRootUri + odataPath);
}
// Due to a bug in the System.Uri some relative paths are rejected if they contain
// a ':' symbol on a position greater than 1024. This careful check should mitigate
// this problem by encoding these characters before the path is combined with
// service roor Uri.
// https://github.com/dotnet/corefx/issues/29011
if (!Uri.IsWellFormedUriString(odataPath, UriKind.RelativeOrAbsolute) &&
odataPath.IndexOf(':') > MaxUriSchemeName)
{
var odataPathColonEncoded = odataPath.Replace(":", "%3A");
if (Uri.IsWellFormedUriString(odataPathColonEncoded, UriKind.Relative))
{
odataPath = odataPathColonEncoded;
}
}
fullUri = new Uri(serviceRootUri, odataPath);
uriParser = new ODataUriParser(model, serviceRootUri, fullUri, requestContainer);
}
if (UrlKeyDelimiter != null)
{
uriParser.UrlKeyDelimiter = UrlKeyDelimiter;
}
else
{
uriParser.UrlKeyDelimiter = ODataUrlKeyDelimiter.Slash;
}
ODL.ODataPath path;
UnresolvedPathSegment unresolvedPathSegment = null;
ODL.KeySegment id = null;
try
{
path = uriParser.ParsePath();
}
catch (ODataUnrecognizedPathException ex)
{
if (ex.ParsedSegments != null &&
ex.ParsedSegments.Any() &&
(ex.ParsedSegments.Last().EdmType is IEdmComplexType ||
ex.ParsedSegments.Last().EdmType is IEdmEntityType) &&
ex.CurrentSegment != ODataSegmentKinds.Count)
{
if (!ex.UnparsedSegments.Any())
{
path = new ODL.ODataPath(ex.ParsedSegments);
unresolvedPathSegment = new UnresolvedPathSegment(ex.CurrentSegment);
}
else
{
// Throw ODataException if there is some segment following the unresolved segment.
throw new ODataException(Error.Format(
SRResources.InvalidPathSegment,
ex.UnparsedSegments.First(),
ex.CurrentSegment));
}
}
else
{
throw;
}
}
if (!template && path.LastSegment is ODL.NavigationPropertyLinkSegment)
{
IEdmCollectionType lastSegmentEdmType = path.LastSegment.EdmType as IEdmCollectionType;
if (lastSegmentEdmType != null)
{
ODL.EntityIdSegment entityIdSegment = null;
bool exceptionThrown = false;
try
{
entityIdSegment = uriParser.ParseEntityId();
if (entityIdSegment != null)
{
// Create another ODataUriParser to parse $id, which is absolute or relative.
ODataUriParser parser = new ODataUriParser(model, serviceRootUri, entityIdSegment.Id, requestContainer);
id = parser.ParsePath().LastSegment as ODL.KeySegment;
}
}
catch (ODataException)
{
// Exception was thrown while parsing the $id.
// We will throw another exception about the invalid $id.
exceptionThrown = true;
}
if (exceptionThrown ||
(entityIdSegment != null &&
(id == null ||
!(id.EdmType.IsOrInheritsFrom(lastSegmentEdmType.ElementType.Definition) ||
lastSegmentEdmType.ElementType.Definition.IsOrInheritsFrom(id.EdmType)))))
{
// System.Net.Http on NetCore does not have the Uri extension method
// ParseQueryString(), to avoid a platform-specific call, extract $id manually.
string idValue = fullUri.Query;
string idParam = "$id=";
int start = idValue.IndexOf(idParam, StringComparison.OrdinalIgnoreCase);
if (start >= 0)
{
int end = idValue.IndexOf("&", start, StringComparison.OrdinalIgnoreCase);
if (end >= 0)
{
idValue = idValue.Substring(start + idParam.Length, end - 1);
}
else
{
idValue = idValue.Substring(start + idParam.Length);
}
}
throw new ODataException(Error.Format(SRResources.InvalidDollarId, idValue));
}
}
}
// do validation for the odata path
path.WalkWith(new DefaultODataPathValidator(model));
// do segment translator (for example parameter alias, key & function parameter template, etc)
var segments =
ODataPathSegmentTranslator.Translate(model, path, uriParser.ParameterAliasNodes).ToList();
if (unresolvedPathSegment != null)
{
segments.Add(unresolvedPathSegment);
}
if (!template)
{
AppendIdForRef(segments, id);
}
return(new ODataPath(segments)
{
Path = path
});
}
private static ODataPath Parse(
IEdmModel model,
string serviceRoot,
string odataPath,
ODataUriResolverSetttings resolverSettings,
bool enableUriTemplateParsing)
{
ODataUriParser uriParser;
Uri serviceRootUri = null;
Uri fullUri = null;
// TODO: Replace this type.
//NameValueCollection queryString = null;
if (enableUriTemplateParsing)
{
uriParser = new ODataUriParser(model, new Uri(odataPath, UriKind.Relative));
uriParser.EnableUriTemplateParsing = true;
}
else
{
Contract.Assert(serviceRoot != null);
serviceRootUri = new Uri(
serviceRoot.EndsWith("/", StringComparison.Ordinal) ?
serviceRoot :
serviceRoot + "/");
fullUri = new Uri(serviceRootUri, odataPath);
//queryString = fullUri.ParseQueryString();
uriParser = new ODataUriParser(model, serviceRootUri, fullUri);
}
uriParser.Resolver = resolverSettings.CreateResolver();
Semantic.ODataPath path;
UnresolvedPathSegment unresolvedPathSegment = null;
Semantic.KeySegment id = null;
try
{
path = uriParser.ParsePath();
}
catch (ODataUnrecognizedPathException ex)
{
if (ex.ParsedSegments != null &&
ex.ParsedSegments.Count() > 0 &&
(ex.ParsedSegments.Last().EdmType is IEdmComplexType ||
ex.ParsedSegments.Last().EdmType is IEdmEntityType) &&
ex.CurrentSegment != ODataSegmentKinds.Count)
{
if (ex.UnparsedSegments.Count() == 0)
{
path = new Semantic.ODataPath(ex.ParsedSegments);
unresolvedPathSegment = new UnresolvedPathSegment(ex.CurrentSegment);
}
else
{
// Throw ODataException if there is some segment following the unresolved segment.
throw new ODataException(Error.Format(
SRResources.InvalidPathSegment,
ex.UnparsedSegments.First(),
ex.CurrentSegment));
}
}
else
{
throw;
}
}
if (!enableUriTemplateParsing && path.LastSegment is Semantic.NavigationPropertyLinkSegment)
{
IEdmCollectionType lastSegmentEdmType = path.LastSegment.EdmType as IEdmCollectionType;
if (lastSegmentEdmType != null)
{
Semantic.EntityIdSegment entityIdSegment = null;
bool exceptionThrown = false;
try
{
entityIdSegment = uriParser.ParseEntityId();
if (entityIdSegment != null)
{
// Create another ODataUriParser to parse $id, which is absolute or relative.
ODataUriParser parser = new ODataUriParser(model, serviceRootUri, entityIdSegment.Id);
id = parser.ParsePath().LastSegment as Semantic.KeySegment;
}
}
catch (ODataException)
{
// Exception was thrown while parsing the $id.
// We will throw another exception about the invalid $id.
exceptionThrown = true;
}
if (exceptionThrown ||
(entityIdSegment != null &&
(id == null ||
!(id.EdmType.IsOrInheritsFrom(lastSegmentEdmType.ElementType.Definition) ||
lastSegmentEdmType.ElementType.Definition.IsOrInheritsFrom(id.EdmType)))))
{
throw new ODataException(Error.Format(SRResources.InvalidDollarId, /*queryString.Get("$id")*/ "$id"));
}
}
}
ODataPath webAPIPath = ODataPathSegmentTranslator.TranslateODLPathToWebAPIPath(
path,
model,
unresolvedPathSegment,
id,
enableUriTemplateParsing,
uriParser.ParameterAliasNodes);
CheckNavigableProperty(webAPIPath, model);
return(webAPIPath);
}