private void HandleError(RewriteContext context)
{
// Return the status code.
ContextFacade.SetStatusCode((int)context.StatusCode);
// Get the error handler if there is one.
IRewriteErrorHandler handler = _configuration.ErrorHandlers[(int)context.StatusCode] as IRewriteErrorHandler;
if (handler != null)
{
try
{
_configuration.Logger.Debug(MessageProvider.FormatString(Message.CallingErrorHandler));
// Execute the error handler.
ContextFacade.HandleError(handler);
}
catch (HttpException)
{
throw;
}
catch (Exception exc)
{
_configuration.Logger.Fatal(exc.Message, exc);
throw new HttpException(
(int)HttpStatusCode.InternalServerError, HttpStatusCode.InternalServerError.ToString());
}
}
else
{
throw new HttpException((int)context.StatusCode, context.StatusCode.ToString());
}
}
private bool HandleDefaultDocument(RewriteContext context)
{
Uri uri = new Uri(ContextFacade.GetRequestUrl(), context.Location);
UriBuilder b = new UriBuilder(uri);
b.Path += "/";
uri = b.Uri;
if (uri.Host == ContextFacade.GetRequestUrl().Host)
{
string filename = ContextFacade.MapPath(uri.AbsolutePath);
if (Directory.Exists(filename))
{
foreach (string document in RewriterConfiguration.Current.DefaultDocuments)
{
string pathName = Path.Combine(filename, document);
if (File.Exists(pathName))
{
context.Location = new Uri(uri, document).AbsolutePath;
return(true);
}
}
}
}
return(false);
}
private void AppendHeaders(RewriteContext context)
{
foreach (string headerKey in context.Headers)
{
ContextFacade.AppendHeader(headerKey, context.Headers[headerKey]);
}
}
private void AppendCookies(RewriteContext context)
{
for (int i = 0; i < context.Cookies.Count; i++)
{
HttpCookie cookie = context.Cookies[i];
ContextFacade.AppendCookie(cookie);
}
}
/// <summary>
/// Performs the rewriting.
/// </summary>
public void Rewrite()
{
string originalUrl = ContextFacade.GetRawUrl().Replace("+", " ");
RawUrl = originalUrl;
// Create the context
RewriteContext context = new RewriteContext(this, originalUrl,
ContextFacade.GetHttpMethod(), ContextFacade.MapPath,
ContextFacade.GetServerVariables(), ContextFacade.GetHeaders(), ContextFacade.GetCookies());
// Process each rule.
ProcessRules(context);
// Append any headers defined.
AppendHeaders(context);
// Append any cookies defined.
AppendCookies(context);
// Rewrite the path if the location has changed.
ContextFacade.SetStatusCode((int)context.StatusCode);
if ((context.Location != originalUrl) && ((int)context.StatusCode < 400))
{
if ((int)context.StatusCode < 300)
{
// Successful status if less than 300
_configuration.Logger.Info(MessageProvider.FormatString(Message.RewritingXtoY,
ContextFacade.GetRawUrl(), context.Location));
// Verify that the url exists on this server.
HandleDefaultDocument(context);// VerifyResultExists(context);
ContextFacade.RewritePath(context.Location);
}
else
{
// Redirection
_configuration.Logger.Info(MessageProvider.FormatString(Message.RedirectingXtoY,
ContextFacade.GetRawUrl(), context.Location));
ContextFacade.SetRedirectLocation(context.Location);
}
}
else if ((int)context.StatusCode >= 400)
{
HandleError(context);
}
else if (HandleDefaultDocument(context))
{
ContextFacade.RewritePath(context.Location);
}
// Sets the context items.
SetContextItems(context);
}
private void SetContextItems(RewriteContext context)
{
OriginalQueryString = new Uri(ContextFacade.GetRequestUrl(), ContextFacade.GetRawUrl()).Query.Replace("?", "");
QueryString = new Uri(ContextFacade.GetRequestUrl(), context.Location).Query.Replace("?", "");
// Add in the properties as context items, so these will be accessible to the handler
foreach (string key in context.Properties.Keys)
{
ContextFacade.SetItem(String.Format("Rewriter.{0}", key), context.Properties[key]);
}
}
private static MapRepresentation CreateMap(ContextFacade context, object obj)
{
var opts = new List <OptionalProperty> {
new OptionalProperty(JsonPropertyNames.Value, obj)
};
if (!string.IsNullOrEmpty(context.Reason))
{
opts.Add(new OptionalProperty(JsonPropertyNames.InvalidReason, context.Reason));
}
return(Create(opts.ToArray()));
}
private static void CheckForRedirection(IOidStrategy oidStrategy, ContextFacade context, HttpRequest req)
{
var ocs = context as ObjectContextFacade;
var arcs = context as ActionResultContextFacade;
var redirected = ocs?.Redirected ?? arcs?.Result?.Redirected;
if (redirected != null)
{
var(serverName, oid) = redirected.Value;
var redirectAddress = UriMtHelper.GetRedirectUri(req, serverName, oid);
throw new RedirectionException(redirectAddress);
}
}
private static void CheckForRedirection(IOidStrategy oidStrategy, ContextFacade context, HttpRequestMessage req)
{
var ocs = context as ObjectContextFacade;
var arcs = context as ActionResultContextFacade;
string url = (ocs != null ? ocs.RedirectedUrl : null) ?? (arcs != null && arcs.Result != null ? arcs.Result.RedirectedUrl : null);
if (url != null)
{
Uri redirectAddress = new UriMtHelper(oidStrategy, req).GetRedirectUri(req, url);
throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.MovedPermanently)
{
Headers = { Location = redirectAddress }
});
}
}
/// <summary>
/// Resolves an Application-path relative location
/// </summary>
/// <param name="location">The location</param>
/// <returns>The absolute location.</returns>
public string ResolveLocation(string location)
{
if (location == null)
{
throw new ArgumentNullException("location");
}
string appPath = ContextFacade.GetApplicationPath();
if (appPath.Length > 1)
{
appPath += "/";
}
return(location.Replace("~/", appPath));
}
private void VerifyResultExists(RewriteContext context)
{
if ((String.Compare(context.Location, ContextFacade.GetRawUrl()) != 0) && ((int)context.StatusCode < 300))
{
Uri uri = new Uri(ContextFacade.GetRequestUrl(), context.Location);
if (uri.Host == ContextFacade.GetRequestUrl().Host)
{
string filename = ContextFacade.MapPath(uri.AbsolutePath);
if (!File.Exists(filename))
{
_configuration.Logger.Debug(MessageProvider.FormatString(Message.ResultNotFound, filename));
context.StatusCode = HttpStatusCode.NotFound;
}
else
{
HandleDefaultDocument(context);
}
}
}
}
private RestSnapshot(IOidStrategy oidStrategy, ContextFacade context, HttpRequestMessage req, bool validateAsJson)
: this(oidStrategy, req, validateAsJson)
{
CheckForRedirection(oidStrategy, context, req);
}
public BadRequestNOSException(string message, ContextFacade context) : base(message, context)
{
}
public static MapRepresentation Create(IOidStrategy oidStrategy, IFrameworkFacade frameworkFacade, HttpRequest req, ContextFacade contextFacade, IList <ContextFacade> contexts, Format format, RestControlFlags flags, MediaTypeHeaderValue mt)
{
var memberValues = contexts.Select(c => new OptionalProperty(c.Id, GetMap(oidStrategy, frameworkFacade, req, c, flags))).ToList();
var target = contexts.First().Target;
MapRepresentation mapRepresentation;
if (format == Format.Full)
{
var tempProperties = new List <OptionalProperty>();
if (!string.IsNullOrEmpty(contextFacade?.Reason))
{
tempProperties.Add(new OptionalProperty(JsonPropertyNames.XRoInvalidReason, contextFacade.Reason));
}
var dt = new OptionalProperty(JsonPropertyNames.DomainType, target.Specification.DomainTypeName(oidStrategy));
tempProperties.Add(dt);
var members = new OptionalProperty(JsonPropertyNames.Members, Create(memberValues.ToArray()));
tempProperties.Add(members);
mapRepresentation = Create(tempProperties.ToArray());
}
else
{
mapRepresentation = Create(memberValues.ToArray());
}
mapRepresentation.SetContentType(mt);
return(mapRepresentation);
}
private static MapRepresentation GetMap(IOidStrategy oidStrategy, IFrameworkFacade frameworkFacade, HttpRequest req, ContextFacade context, RestControlFlags flags)
{
MapRepresentation value;
// All reasons why we cannot create a link representation
if (context.Specification.IsCollection && context.ElementSpecification != null && !context.ElementSpecification.IsParseable)
{
var proposedObjectFacade = frameworkFacade.GetObject(context.ProposedValue);
var coll = proposedObjectFacade.ToEnumerable().Select(no => CreateObjectRef(oidStrategy, req, no, flags)).ToArray();
value = CreateMap(context, coll);
}
else if (context.Specification.IsParseable ||
context.ProposedValue == null ||
context.ProposedObjectFacade == null ||
context.ProposedObjectFacade.Specification.IsParseable)
{
value = CreateMap(context, context.ProposedValue);
}
else
{
value = CreateMap(context, RefValueRepresentation.Create(oidStrategy, new ObjectRelType(RelValues.Self, new UriMtHelper(oidStrategy, req, context.ProposedObjectFacade)), flags));
}
return(value);
}
public static MapRepresentation Create(IOidStrategy oidStrategy, IFrameworkFacade frameworkFacade, HttpRequest req, ContextFacade context, Format format, RestControlFlags flags, MediaTypeHeaderValue mt)
{
var objectContext = context as ObjectContextFacade;
var actionResultContext = context as ActionResultContextFacade;
MapRepresentation mapRepresentation;
if (objectContext != null)
{
var optionalProperties = objectContext.VisibleProperties.Where(p => p.Reason != null || p.ProposedValue != null).Select(c => new OptionalProperty(c.Id, GetMap(oidStrategy, frameworkFacade, req, c, flags))).ToList();
if (!string.IsNullOrEmpty(objectContext.Reason))
{
optionalProperties.Add(new OptionalProperty(JsonPropertyNames.XRoInvalidReason, objectContext.Reason));
}
mapRepresentation = Create(optionalProperties.ToArray());
}
else if (actionResultContext != null)
{
var optionalProperties = actionResultContext.ActionContext.VisibleParameters.Select(c => new OptionalProperty(c.Id, GetMap(oidStrategy, frameworkFacade, req, c, flags))).ToList();
if (!string.IsNullOrEmpty(actionResultContext.Reason))
{
optionalProperties.Add(new OptionalProperty(JsonPropertyNames.XRoInvalidReason, actionResultContext.Reason));
}
mapRepresentation = Create(optionalProperties.ToArray());
}
else
{
mapRepresentation = GetMap(oidStrategy, frameworkFacade, req, context, flags);
}
mapRepresentation.SetContentType(mt);
return(mapRepresentation);
}
protected WithContextNOSException(string message, ContextFacade context) : this(message, context, null)
{
}
public BadArgumentsNOSException(string message, ContextFacade context)
: base(message, context)
{
}
public static MapRepresentation Create(IOidStrategy oidStrategy, HttpRequestMessage req, ContextFacade contextFacade, IList <ContextFacade> contexts, Format format, RestControlFlags flags, MediaTypeHeaderValue mt)
{
var memberValues = contexts.Select(c => new OptionalProperty(c.Id, GetMap(oidStrategy, req, c, flags))).ToList();
IObjectFacade target = contexts.First().Target;
MapRepresentation mapRepresentation;
if (format == Format.Full)
{
var tempProperties = new List <OptionalProperty>();
if (contextFacade != null && !string.IsNullOrEmpty(contextFacade.Reason))
{
tempProperties.Add(new OptionalProperty(JsonPropertyNames.XRoInvalidReason, contextFacade.Reason));
}
if (flags.SimpleDomainModel)
{
var dt = new OptionalProperty(JsonPropertyNames.DomainType, target.Specification.DomainTypeName(oidStrategy));
tempProperties.Add(dt);
}
if (flags.FormalDomainModel)
{
var links = new OptionalProperty(JsonPropertyNames.Links, new[] {
Create(new OptionalProperty(JsonPropertyNames.Rel, RelValues.DescribedBy),
new OptionalProperty(JsonPropertyNames.Href, new UriMtHelper(oidStrategy, req, target.Specification).GetDomainTypeUri()))
});
tempProperties.Add(links);
}
if (contextFacade != null && !string.IsNullOrEmpty(contextFacade.Reason))
{
tempProperties.Add(new OptionalProperty(JsonPropertyNames.XRoInvalidReason, contextFacade.Reason));
}
var members = new OptionalProperty(JsonPropertyNames.Members, Create(memberValues.ToArray()));
tempProperties.Add(members);
mapRepresentation = Create(tempProperties.ToArray());
}
else
{
mapRepresentation = Create(memberValues.ToArray());
}
mapRepresentation.SetContentType(mt);
return(mapRepresentation);
}
private static MapRepresentation GetMap(IOidStrategy oidStrategy, HttpRequestMessage req, ContextFacade context, RestControlFlags flags)
{
MapRepresentation value;
// All reasons why we cannot create a linkrep
if (context.Specification.IsParseable ||
context.Specification.IsCollection ||
context.ProposedValue == null ||
context.ProposedObjectFacade == null ||
context.ProposedObjectFacade.Specification.IsParseable)
{
value = CreateMap(context, context.ProposedValue);
}
else
{
value = CreateMap(context, RefValueRepresentation.Create(oidStrategy, new ObjectRelType(RelValues.Self, new UriMtHelper(oidStrategy, req, context.ProposedObjectFacade)), flags));
}
return(value);
}
private RestSnapshot(IOidStrategy oidStrategy, ContextFacade context, HttpRequestMessage req, bool validateAsJson)
: this(oidStrategy, req, validateAsJson)
{
logger.DebugFormat("RestSnapshot:{0}", context.GetType().FullName);
CheckForRedirection(oidStrategy, context, req);
}
public BadArgumentsNOSException(string message, ContextFacade context, IList <ContextFacade> contexts)
: base(message, context, contexts)
{
}
protected WithContextNOSException(string message, ContextFacade context, IList <ContextFacade> contexts) : this(message) {
Contexts = contexts;
ContextFacade = context;
}
/// <summary>
/// Performs the rewriting.
/// </summary>
public void Rewrite()
{
string originalUrl = ContextFacade.GetRawUrl().Replace("+", " ");
RawUrl = originalUrl;
// Create the context
RewriteContext context = new RewriteContext(
this,
originalUrl,
ContextFacade.GetHttpMethod(),
ContextFacade.MapPath,
ContextFacade.GetServerVariables(),
ContextFacade.GetHeaders(),
ContextFacade.GetCookies());
// Process each rule.
ProcessRules(context);
// Append any headers defined.
AppendHeaders(context);
// Append any cookies defined.
AppendCookies(context);
// Rewrite the path if the location has changed.
ContextFacade.SetStatusCode((int)context.StatusCode);
if ((context.Location != originalUrl) && ((int)context.StatusCode < 400))
{
if ((int)context.StatusCode < 300)
{
// Successful status if less than 300
_configuration.Logger.Info(
MessageProvider.FormatString(Message.RewritingXtoY, ContextFacade.GetRawUrl(), context.Location));
// Verify that the url exists on this server.
HandleDefaultDocument(context); // VerifyResultExists(context);
if (context.Location.Contains(@"&"))
{
var queryStringCollection = HttpUtility.ParseQueryString(new Uri(this.ContextFacade.GetRequestUrl(), context.Location).Query);
StringBuilder builder = new StringBuilder();
foreach (var value in queryStringCollection.AllKeys.Distinct())
{
var argument = queryStringCollection.GetValues(value).FirstOrDefault();
if (value == "g")
{
if (context.Location != argument)
{
builder.AppendFormat(
"{0}={1}&",
value,
argument);
}
}
else
{
builder.AppendFormat(
"{0}={1}&",
value,
argument);
}
}
context.Location = context.Location.Remove(context.Location.IndexOf("?") + 1);
context.Location = context.Location + builder;
if (context.Location.EndsWith(@"&"))
{
context.Location = context.Location.Remove(context.Location.Length - 1);
}
}
ContextFacade.RewritePath(context.Location);
}
else
{
// Redirection
_configuration.Logger.Info(
MessageProvider.FormatString(
Message.RedirectingXtoY, ContextFacade.GetRawUrl(), context.Location));
ContextFacade.SetRedirectLocation(context.Location);
}
}
else if ((int)context.StatusCode >= 400)
{
HandleError(context);
}
else if (HandleDefaultDocument(context))
{
ContextFacade.RewritePath(context.Location);
}
// Sets the context items.
SetContextItems(context);
}
protected WithContextNOSException(string message, ContextFacade context)
: base(message)
{
ContextFacade = context;
}
