Adding PageActionDescriptorProvider

Fixes #5353

src/Microsoft.AspNetCore.Mvc.Core/ApplicationModels/AttributeRouteModel.cs

@@ -99,6 +99,33 @@ namespace Microsoft.AspNetCore.Mvc.ApplicationModels
             };
         }
 
+        /// <summary>
+        /// Combines the prefix and route template for an attribute route.
+        /// </summary>
+        /// <param name="prefix">The prefix.</param>
+        /// <param name="template">The route template.</param>
+        /// <returns>The combined pattern.</returns>
+        public static string CombineTemplates(string prefix, string template)
+        {
+            var result = CombineCore(prefix, template);
+            return CleanTemplate(result);
+        }
+
+        /// <summary>
+        /// Determines if a template pattern can be used to override a prefix.
+        /// </summary>
+        /// <param name="template">The template.</param>
+        /// <returns><c>true</c> if this is an overriding template, <c>false</c> otherwise.</returns>
+        /// <remarks>
+        /// Route templates starting with "~/" or "/" can be used to override the prefix.
+        /// </remarks>
+        public static bool IsOverridePattern(string template)
+        {
+            return template != null &&
+                (template.StartsWith("~/", StringComparison.Ordinal) ||
+                template.StartsWith("/", StringComparison.Ordinal));
+        }
+
         private static string ChooseName(
             AttributeRouteModel left,
             AttributeRouteModel right)
@@ -113,12 +140,6 @@ namespace Microsoft.AspNetCore.Mvc.ApplicationModels
             }
         }
 
-        internal static string CombineTemplates(string left, string right)
-        {
-            var result = CombineCore(left, right);
-            return CleanTemplate(result);
-        }
-
         private static string CombineCore(string left, string right)
         {
             if (left == null && right == null)
@@ -143,13 +164,6 @@ namespace Microsoft.AspNetCore.Mvc.ApplicationModels
             return left + "/" + right;
         }
 
-        private static bool IsOverridePattern(string template)
-        {
-            return template != null &&
-                (template.StartsWith("~/", StringComparison.Ordinal) ||
-                template.StartsWith("/", StringComparison.Ordinal));
-        }
-
         private static bool IsEmptyLeftSegment(string template)
         {
             return template == null ||

src/Microsoft.AspNetCore.Mvc.Core/Internal/ControllerActionDescriptorBuilder.cs

@@ -4,7 +4,6 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Globalization;
 using System.Linq;
 using System.Reflection;
 using Microsoft.AspNetCore.Mvc.Abstractions;
@@ -14,7 +13,6 @@ using Microsoft.AspNetCore.Mvc.Controllers;
 using Microsoft.AspNetCore.Mvc.Core;
 using Microsoft.AspNetCore.Mvc.Filters;
 using Microsoft.AspNetCore.Mvc.Routing;
-using Microsoft.AspNetCore.Routing.Tree;
 
 namespace Microsoft.AspNetCore.Mvc.Internal
 {

src/Microsoft.AspNetCore.Mvc.Core/Properties/Resources.Designer.cs

@@ -1306,22 +1306,6 @@ namespace Microsoft.AspNetCore.Mvc.Core
             return string.Format(CultureInfo.CurrentCulture, GetString("MiddlewareFilter_ServiceResolutionFail"), p0, p1, p2, p3);
         }
 
-        /// <summary>
-        /// Unable to create an instance of type '{0}'. The type specified in {1} must not be abstract and must have a parameterless constructor.
-        /// </summary>
-        internal static string MiddlewareFilterConfigurationProvider_CreateConfigureDelegate_CannotCreateType
-        {
-            get { return GetString("MiddlewareFilterConfigurationProvider_CreateConfigureDelegate_CannotCreateType"); }
-        }
-
-        /// <summary>
-        /// Unable to create an instance of type '{0}'. The type specified in {1} must not be abstract and must have a parameterless constructor.
-        /// </summary>
-        internal static string FormatMiddlewareFilterConfigurationProvider_CreateConfigureDelegate_CannotCreateType(object p0, object p1)
-        {
-            return string.Format(CultureInfo.CurrentCulture, GetString("MiddlewareFilterConfigurationProvider_CreateConfigureDelegate_CannotCreateType"), p0, p1);
-        }
-
         /// <summary>
         /// An {0} cannot be created without a valid instance of {1}.
         /// </summary>
@@ -1355,7 +1339,7 @@ namespace Microsoft.AspNetCore.Mvc.Core
         }
 
         /// <summary>
-        /// VaryByQueryKeys requires the response cache middleware.
+        /// '{0}' requires the response cache middleware.
         /// </summary>
         internal static string VaryByQueryKeys_Requires_ResponseCachingMiddleware
         {
@@ -1363,7 +1347,7 @@ namespace Microsoft.AspNetCore.Mvc.Core
         }
 
         /// <summary>
-        /// VaryByQueryKeys requires the response cache middleware.
+        /// '{0}' requires the response cache middleware.
         /// </summary>
         internal static string FormatVaryByQueryKeys_Requires_ResponseCachingMiddleware(object p0)
         {
@@ -1386,6 +1370,22 @@ namespace Microsoft.AspNetCore.Mvc.Core
             return string.Format(CultureInfo.CurrentCulture, GetString("CandidateResolver_DifferentCasedReference"), p0);
         }
 
+        /// <summary>
+        /// Unable to create an instance of type '{0}'. The type specified in {1} must not be abstract and must have a parameterless constructor.
+        /// </summary>
+        internal static string MiddlewareFilterConfigurationProvider_CreateConfigureDelegate_CannotCreateType
+        {
+            get { return GetString("MiddlewareFilterConfigurationProvider_CreateConfigureDelegate_CannotCreateType"); }
+        }
+
+        /// <summary>
+        /// Unable to create an instance of type '{0}'. The type specified in {1} must not be abstract and must have a parameterless constructor.
+        /// </summary>
+        internal static string FormatMiddlewareFilterConfigurationProvider_CreateConfigureDelegate_CannotCreateType(object p0, object p1)
+        {
+            return string.Format(CultureInfo.CurrentCulture, GetString("MiddlewareFilterConfigurationProvider_CreateConfigureDelegate_CannotCreateType"), p0, p1);
+        }
+
         private static string GetString(string name, params string[] formatterNames)
         {
             var value = _resourceManager.GetString(name);

src/Microsoft.AspNetCore.Mvc.RazorPages/ApplicationModels/IPageModelConvention.cs

@@ -0,0 +1,17 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+namespace Microsoft.AspNetCore.Mvc.ApplicationModels
+{
+    /// <summary>
+    /// Allows customization of the of the <see cref="PageModel"/>.
+    /// </summary>
+    public interface IPageModelConvention
+    {
+        /// <summary>
+        /// Called to apply the convention to the <see cref="PageModel"/>.
+        /// </summary>
+        /// <param name="model">The <see cref="PageModel"/>.</param>
+        void Apply(PageModel model);
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/ApplicationModels/PageModel.cs

@@ -0,0 +1,86 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.AspNetCore.Mvc.Filters;
+
+namespace Microsoft.AspNetCore.Mvc.ApplicationModels
+{
+    /// <summary>
+    /// Application model component for RazorPages.
+    /// </summary>
+    public class PageModel
+    {
+        /// <summary>
+        /// Initializes a new instance of <see cref="PageModel"/>.
+        /// </summary>
+        /// <param name="relativePath">The application relative path of the page.</param>
+        /// <param name="viewEnginePath">The path relative to the base path for page discovery.</param>
+        public PageModel(string relativePath, string viewEnginePath)
+        {
+            if (relativePath == null)
+            {
+                throw new ArgumentNullException(nameof(relativePath));
+            }
+
+            if (viewEnginePath == null)
+            {
+                throw new ArgumentNullException(nameof(viewEnginePath));
+            }
+
+            RelativePath = relativePath;
+            ViewEnginePath = viewEnginePath;
+
+            Filters = new List<IFilterMetadata>();
+            Properties = new Dictionary<object, object>();
+            Selectors = new List<SelectorModel>();
+        }
+
+        /// <summary>
+        /// A copy constructor for <see cref="PageModel"/>.
+        /// </summary>
+        /// <param name="other">The <see cref="PageModel"/> to copy from.</param>
+        public PageModel(PageModel other)
+        {
+            if (other == null)
+            {
+                throw new ArgumentNullException(nameof(other));
+            }
+
+            RelativePath = other.RelativePath;
+            ViewEnginePath = other.ViewEnginePath;
+
+            Filters = new List<IFilterMetadata>(other.Filters);
+            Properties = new Dictionary<object, object>(other.Properties);
+
+            Selectors = new List<SelectorModel>(other.Selectors.Select(m => new SelectorModel(m)));
+        }
+
+        /// <summary>
+        /// Gets or sets the application root relative path for the page.
+        /// </summary>
+        public string RelativePath { get; }
+
+        /// <summary>
+        /// Gets or sets the path relative to the base path for page discovery.
+        /// </summary>
+        public string ViewEnginePath { get; }
+
+        /// <summary>
+        /// Gets or sets the applicable <see cref="IFilterMetadata"/> instances.
+        /// </summary>
+        public IList<IFilterMetadata> Filters { get; }
+
+        /// <summary>
+        /// Stores arbitrary metadata properties associated with the <see cref="PageModel"/>.
+        /// </summary>
+        public IDictionary<object, object> Properties { get; }
+
+        /// <summary>
+        /// Gets or sets the <see cref="SelectorModel"/> instances.
+        /// </summary>
+        public IList<SelectorModel> Selectors { get; }
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/Infrastructure/PageActionDescriptorProvider.cs

@@ -0,0 +1,127 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Collections.Generic;
+using Microsoft.AspNetCore.Mvc.Abstractions;
+using Microsoft.AspNetCore.Mvc.ApplicationModels;
+using Microsoft.AspNetCore.Mvc.Filters;
+using Microsoft.AspNetCore.Mvc.Routing;
+using Microsoft.AspNetCore.Razor.Evolution;
+using Microsoft.Extensions.Options;
+
+namespace Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure
+{
+    public class PageActionDescriptorProvider : IActionDescriptorProvider
+    {
+        private static readonly string IndexFileName = "Index.cshtml";
+        private readonly RazorProject _project;
+        private readonly MvcOptions _mvcOptions;
+        private readonly RazorPagesOptions _pagesOptions;
+
+        public PageActionDescriptorProvider(
+            RazorProject project,
+            IOptions<MvcOptions> mvcOptionsAccessor,
+            IOptions<RazorPagesOptions> pagesOptionsAccessor)
+        {
+            _project = project;
+            _mvcOptions = mvcOptionsAccessor.Value;
+            _pagesOptions = pagesOptionsAccessor.Value;
+        }
+
+        public int Order { get; set; }
+
+        public void OnProvidersExecuting(ActionDescriptorProviderContext context)
+        {
+            foreach (var item in _project.EnumerateItems("/"))
+            {
+                if (item.Filename.StartsWith("_"))
+                {
+                    // Pages like _PageImports should not be routable.
+                    continue;
+                }
+
+                string template;
+                if (!PageDirectiveFeature.TryGetRouteTemplate(item, out template))
+                {
+                    // .cshtml pages without @page are not RazorPages.
+                    continue;
+                }
+
+                if (AttributeRouteModel.IsOverridePattern(template))
+                {
+                    throw new InvalidOperationException(string.Format(
+                        Resources.PageActionDescriptorProvider_RouteTemplateCannotBeOverrideable,
+                        item.Path));
+                }
+
+                AddActionDescriptors(context.Results, item, template);
+            }
+        }
+
+        public void OnProvidersExecuted(ActionDescriptorProviderContext context)
+        {
+        }
+
+        private void AddActionDescriptors(IList<ActionDescriptor> actions, RazorProjectItem item, string template)
+        {
+            var model = new PageModel(item.CombinedPath, item.PathWithoutExtension);
+            var routePrefix = item.BasePath == "/" ? item.PathWithoutExtension : item.BasePath + item.PathWithoutExtension;
+            model.Selectors.Add(CreateSelectorModel(routePrefix, template));
+
+            if (string.Equals(IndexFileName, item.Filename, StringComparison.OrdinalIgnoreCase))
+            {
+                model.Selectors.Add(CreateSelectorModel(item.BasePath, template));
+            }
+
+            for (var i = 0; i < _pagesOptions.Conventions.Count; i++)
+            {
+                _pagesOptions.Conventions[i].Apply(model);
+            }
+
+            var filters = new List<FilterDescriptor>(_mvcOptions.Filters.Count + model.Filters.Count);
+            for (var i = 0; i < _mvcOptions.Filters.Count; i++)
+            {
+                filters.Add(new FilterDescriptor(_mvcOptions.Filters[i], FilterScope.Global));
+            }
+
+            for (var i = 0; i < model.Filters.Count; i++)
+            {
+                filters.Add(new FilterDescriptor(model.Filters[i], FilterScope.Action));
+            }
+
+            foreach (var selector in model.Selectors)
+            {
+                actions.Add(new PageActionDescriptor()
+                {
+                    AttributeRouteInfo = new AttributeRouteInfo()
+                    {
+                        Name = selector.AttributeRouteModel.Name,
+                        Order = selector.AttributeRouteModel.Order ?? 0,
+                        Template = selector.AttributeRouteModel.Template,
+                    },
+                    DisplayName = $"Page: {item.Path}",
+                    FilterDescriptors = filters,
+                    Properties = new Dictionary<object, object>(model.Properties),
+                    RelativePath = item.CombinedPath,
+                    RouteValues = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+                    {
+                        { "page", item.PathWithoutExtension },
+                    },
+                    ViewEnginePath = item.Path,
+                });
+            }
+        }
+
+        private static SelectorModel CreateSelectorModel(string prefix, string template)
+        {
+            return new SelectorModel
+            {
+                AttributeRouteModel = new AttributeRouteModel
+                {
+                    Template = AttributeRouteModel.CombineTemplates(prefix, template),
+                }
+            };
+        }
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/Infrastructure/PageDirectiveFeature.cs

@@ -0,0 +1,33 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.IO;
+using Microsoft.AspNetCore.Razor.Evolution;
+
+namespace Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure
+{
+    public static class PageDirectiveFeature
+    {
+        public static bool TryGetRouteTemplate(RazorProjectItem projectItem, out string template)
+        {
+            const string PageDirective = "@page";
+
+            string content;
+            using (var streamReader = new StreamReader(projectItem.Read()))
+            {
+                content = streamReader.ReadToEnd();
+            }
+
+            if (content.StartsWith(PageDirective, StringComparison.Ordinal))
+            {
+                var newLineIndex = content.IndexOf(Environment.NewLine, PageDirective.Length);
+                template = content.Substring(PageDirective.Length, newLineIndex - PageDirective.Length).Trim();
+                return true;
+            }
+
+            template = null;
+            return false;
+        }
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/Internal/DefaultRazorProject.cs

@@ -0,0 +1,59 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Microsoft.AspNetCore.Razor.Evolution;
+using Microsoft.Extensions.FileProviders;
+
+namespace Microsoft.AspNetCore.Mvc.RazorPages.Internal
+{
+    public class DefaultRazorProject : RazorProject
+    {
+        private const string RazorFileExtension = ".cshtml";
+        private readonly IFileProvider _provider;
+
+        public DefaultRazorProject(IFileProvider provider)
+        {
+            _provider = provider;
+        }
+
+        public override IEnumerable<RazorProjectItem> EnumerateItems(string path)
+        {
+            if (path == null)
+            {
+                throw new ArgumentNullException(nameof(path));
+            }
+
+            if (path.Length == 0 || path[0] != '/')
+            {
+                throw new ArgumentException(Resources.RazorProject_PathMustStartWithForwardSlash);
+            }
+
+            return EnumerateFiles(_provider.GetDirectoryContents(path), path, "");
+        }
+
+        private IEnumerable<RazorProjectItem> EnumerateFiles(IDirectoryContents directory, string basePath, string prefix)
+        {
+            if (directory.Exists)
+            {
+                foreach (var file in directory)
+                {
+                    if (file.IsDirectory)
+                    {
+                        var children = EnumerateFiles(_provider.GetDirectoryContents(file.PhysicalPath), basePath, prefix + "/" + file.Name);
+                        foreach (var child in children)
+                        {
+                            yield return child;
+                        }
+                    }
+                    else if (string.Equals(RazorFileExtension, Path.GetExtension(file.Name), StringComparison.OrdinalIgnoreCase))
+                    {
+                        yield return new DefaultRazorProjectItem(file, basePath, prefix + "/" + file.Name);
+                    }
+                }
+            }
+        }
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/Internal/DefaultRazorProjectItem.cs

@@ -0,0 +1,32 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System.IO;
+using Microsoft.AspNetCore.Razor.Evolution;
+using Microsoft.Extensions.FileProviders;
+
+namespace Microsoft.AspNetCore.Mvc.RazorPages.Internal
+{
+    public class DefaultRazorProjectItem : RazorProjectItem
+    {
+        private readonly IFileInfo _fileInfo;
+
+        public DefaultRazorProjectItem(IFileInfo fileInfo, string basePath, string path)
+        {
+            _fileInfo = fileInfo;
+            BasePath = basePath;
+            Path = path;
+        }
+
+        public override string BasePath { get; }
+
+        public override string Path { get; }
+
+        public override string PhysicalPath => _fileInfo.PhysicalPath;
+
+        public override Stream Read()
+        {
+            return _fileInfo.CreateReadStream();
+        }
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/PageActionDescriptor.cs

@@ -0,0 +1,16 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System.Diagnostics;
+using Microsoft.AspNetCore.Mvc.Abstractions;
+
+namespace Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure
+{
+    [DebuggerDisplay("{" + nameof(ViewEnginePath) + "}")]
+    public class PageActionDescriptor : ActionDescriptor
+    {
+        public string RelativePath { get; set; }
+
+        public string ViewEnginePath { get; set; }
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/Properties/Resources.Designer.cs

@@ -0,0 +1,62 @@
+// <auto-generated />
+namespace Microsoft.AspNetCore.Mvc.RazorPages
+{
+    using System.Globalization;
+    using System.Reflection;
+    using System.Resources;
+
+    internal static class Resources
+    {
+        private static readonly ResourceManager _resourceManager
+            = new ResourceManager("Microsoft.AspNetCore.Mvc.RazorPages.Resources", typeof(Resources).GetTypeInfo().Assembly);
+
+        /// <summary>
+        /// The route for the page at '{0}' cannot start with / or ~/. Pages do not support overriding the file path of the page.
+        /// </summary>
+        internal static string PageActionDescriptorProvider_RouteTemplateCannotBeOverrideable
+        {
+            get { return GetString("PageActionDescriptorProvider_RouteTemplateCannotBeOverrideable"); }
+        }
+
+        /// <summary>
+        /// The route for the page at '{0}' cannot start with / or ~/. Pages do not support overriding the file path of the page.
+        /// </summary>
+        internal static string FormatPageActionDescriptorProvider_RouteTemplateCannotBeOverrideable(object p0)
+        {
+            return string.Format(CultureInfo.CurrentCulture, GetString("PageActionDescriptorProvider_RouteTemplateCannotBeOverrideable"), p0);
+        }
+
+        /// <summary>
+        /// Path must begin with a forward slash '/'.
+        /// </summary>
+        internal static string RazorProject_PathMustStartWithForwardSlash
+        {
+            get { return GetString("RazorProject_PathMustStartWithForwardSlash"); }
+        }
+
+        /// <summary>
+        /// Path must begin with a forward slash '/'.
+        /// </summary>
+        internal static string FormatRazorProject_PathMustStartWithForwardSlash()
+        {
+            return GetString("RazorProject_PathMustStartWithForwardSlash");
+        }
+
+        private static string GetString(string name, params string[] formatterNames)
+        {
+            var value = _resourceManager.GetString(name);
+
+            System.Diagnostics.Debug.Assert(value != null);
+
+            if (formatterNames != null)
+            {
+                for (var i = 0; i < formatterNames.Length; i++)
+                {
+                    value = value.Replace("{" + formatterNames[i] + "}", "{" + i + "}");
+                }
+            }
+
+            return value;
+        }
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/RazorPagesOptions.cs

@@ -0,0 +1,20 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System.Collections.Generic;
+using Microsoft.AspNetCore.Mvc.ApplicationModels;
+
+namespace Microsoft.AspNetCore.Mvc.RazorPages
+{
+    /// <summary>
+    /// Provides configuration for RazorPages.
+    /// </summary>
+    public class RazorPagesOptions
+    {
+        /// <summary>
+        /// Gets a list of <see cref="IPageModelConvention"/> instances that will be applied to
+        /// the <see cref="PageModel"/> when discovering Razor Pages.
+        /// </summary>
+        public IList<IPageModelConvention> Conventions { get; } = new List<IPageModelConvention>();
+    }
+}

src/Microsoft.AspNetCore.Mvc.RazorPages/Resources.resx

@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="PageActionDescriptorProvider_RouteTemplateCannotBeOverrideable" xml:space="preserve">
+    <value>The route for the page at '{0}' cannot start with / or ~/. Pages do not support overriding the file path of the page.</value>
+  </data>
+  <data name="RazorProject_PathMustStartWithForwardSlash" xml:space="preserve">
+    <value>Path must begin with a forward slash '/'.</value>
+  </data>
+</root>

src/Microsoft.AspNetCore.Mvc.RazorPages/project.json

@@ -22,6 +22,7 @@
     "xmlDoc": true
   },
   "dependencies": {
+    "Microsoft.AspNetCore.Mvc.ViewFeatures": { "target": "project" },
     "Microsoft.AspNetCore.Razor.Evolution": "1.0.0-*",
     "NETStandard.Library": "1.6.1-*"
   },

src/Microsoft.AspNetCore.Mvc.TagHelpers/Properties/Resources.Designer.cs

@@ -139,7 +139,7 @@ namespace Microsoft.AspNetCore.Mvc.TagHelpers
         }
 
         /// <summary>
-        /// Cannot determine an '{4}' attribute for {0}. A {0} with a specified '{1}' must not have an '{2}' or '{3}' attribute.
+        /// Cannot determine an '{4}' attribute for {0}. A {0} with a specified '{1}' must not have an '{2}', '{3}', or '{5}' attribute.
         /// </summary>
         internal static string FormTagHelper_CannotDetermineActionWithRouteAndActionOrControllerSpecified
         {
@@ -171,7 +171,7 @@ namespace Microsoft.AspNetCore.Mvc.TagHelpers
         }
 
         /// <summary>
-        /// Cannot override the '{6}' attribute for &lt;{0}&gt;. &lt;{0}&gt; elements with a specified '{6}' must not have attributes starting with '{5}' or an '{1}', '{2}', '{3}', or '{4}' attribute.
+        /// Cannot override the '{7}' attribute for &lt;{0}&gt;. &lt;{0}&gt; elements with a specified '{7}' must not have attributes starting with '{6}' or an '{1}', '{2}', '{3}', '{4}', or '{5}' attribute.
         /// </summary>
         internal static string FormActionTagHelper_CannotOverrideFormAction
         {
@@ -179,7 +179,7 @@ namespace Microsoft.AspNetCore.Mvc.TagHelpers
         }
 
         /// <summary>
-        /// Cannot override the '{6}' attribute for &lt;{0}&gt;. &lt;{0}&gt; elements with a specified '{7}' must not have attributes starting with '{6}' or an '{1}', '{2}', '{3}', '{4}', or '{5}' attribute.
+        /// Cannot override the '{7}' attribute for &lt;{0}&gt;. &lt;{0}&gt; elements with a specified '{7}' must not have attributes starting with '{6}' or an '{1}', '{2}', '{3}', '{4}', or '{5}' attribute.
         /// </summary>
         internal static string FormatFormActionTagHelper_CannotOverrideFormAction(object p0, object p1, object p2, object p3, object p4, object p5, object p6, object p7)
         {
@@ -187,7 +187,7 @@ namespace Microsoft.AspNetCore.Mvc.TagHelpers
         }
 
         /// <summary>
-        /// Cannot determine a '{4}' attribute for &lt;{0}&gt;. &lt;{0}&gt; elements with a specified '{1}' must not have an '{2}' or '{3}' attribute.
+        /// Cannot determine a '{4}' attribute for &lt;{0}&gt;. &lt;{0}&gt; elements with a specified '{1}' must not have an '{2}', '{3}', or '{5}' attribute.
         /// </summary>
         internal static string FormActionTagHelper_CannotDetermineFormActionRouteActionOrControllerSpecified
         {

test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/ControllerActionDescriptorProviderTests.cs

@@ -14,7 +14,6 @@ using Microsoft.AspNetCore.Mvc.Controllers;
 using Microsoft.AspNetCore.Mvc.Filters;
 using Microsoft.AspNetCore.Mvc.ModelBinding;
 using Microsoft.AspNetCore.Mvc.Routing;
-using Microsoft.AspNetCore.Routing.Tree;
 using Moq;
 using Xunit;
 

test/Microsoft.AspNetCore.Mvc.RazorPages.Test/Infrastructure/PageActionDescriptorProviderTest.cs

@@ -0,0 +1,304 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using Microsoft.AspNetCore.Mvc.Abstractions;
+using Microsoft.AspNetCore.Mvc.Filters;
+using Microsoft.AspNetCore.Mvc.Razor;
+using Microsoft.AspNetCore.Mvc.ApplicationModels;
+using Microsoft.AspNetCore.Mvc.RazorPages.Internal;
+using Microsoft.Extensions.Options;
+using Moq;
+using Xunit;
+using Microsoft.AspNetCore.Razor.Evolution;
+
+namespace Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure
+{
+    public class PageActionDescriptorProviderTest
+    {
+        [Fact]
+        public void GetDescriptors_DoesNotAddDescriptorsForFilesWithoutDirectives()
+        {
+            // Arrange
+            var razorProject = new Mock<RazorProject>();
+            razorProject.Setup(p => p.EnumerateItems("/"))
+                .Returns(new[]
+                {
+                    GetProjectItem("/", "/Index.cshtml", "<h1>Hello world</h1>"),
+                });
+            var provider = new PageActionDescriptorProvider(
+                razorProject.Object,
+                GetAccessor<MvcOptions>(),
+                GetAccessor<RazorPagesOptions>());
+            var context = new ActionDescriptorProviderContext();
+
+            // Act
+            provider.OnProvidersExecuting(context);
+
+            // Assert
+            Assert.Empty(context.Results);
+        }
+
+        [Fact]
+        public void GetDescriptors_AddsDescriptorsForFileWithPageDirective()
+        {
+            // Arrange
+            var razorProject = new Mock<RazorProject>();
+            razorProject.Setup(p => p.EnumerateItems("/"))
+                .Returns(new[]
+                {
+                    GetProjectItem("/", "/Test.cshtml", $"@page{Environment.NewLine}<h1>Hello world</h1>"),
+                });
+            var provider = new PageActionDescriptorProvider(
+                razorProject.Object,
+                GetAccessor<MvcOptions>(),
+                GetAccessor<RazorPagesOptions>());
+            var context = new ActionDescriptorProviderContext();
+
+            // Act
+            provider.OnProvidersExecuting(context);
+
+            // Assert
+            var result = Assert.Single(context.Results);
+            var descriptor = Assert.IsType<PageActionDescriptor>(result);
+            Assert.Equal("/Test.cshtml", descriptor.RelativePath);
+            Assert.Equal("/Test", descriptor.RouteValues["page"]);
+            Assert.Equal("Test", descriptor.AttributeRouteInfo.Template);
+        }
+
+        [Fact]
+        public void GetDescriptors_AddsDescriptorsForFileWithPageDirectiveAndRouteTemplate()
+        {
+            // Arrange
+            var razorProject = new Mock<RazorProject>();
+            razorProject.Setup(p => p.EnumerateItems("/"))
+                .Returns(new[]
+                {
+                    GetProjectItem("/", "/Test.cshtml", $"@page Home {Environment.NewLine}<h1>Hello world</h1>"),
+                });
+            var provider = new PageActionDescriptorProvider(
+                razorProject.Object,
+                GetAccessor<MvcOptions>(),
+                GetAccessor<RazorPagesOptions>());
+            var context = new ActionDescriptorProviderContext();
+
+            // Act
+            provider.OnProvidersExecuting(context);
+
+            // Assert
+            var result = Assert.Single(context.Results);
+            var descriptor = Assert.IsType<PageActionDescriptor>(result);
+            Assert.Equal("/Test.cshtml", descriptor.RelativePath);
+            Assert.Equal("/Test", descriptor.RouteValues["page"]);
+            Assert.Equal("Test/Home", descriptor.AttributeRouteInfo.Template);
+        }
+
+        [Theory]
+        [InlineData("/Path1")]
+        [InlineData("~/Path1")]
+        public void GetDescriptors_ThrowsIfRouteTemplatesAreOverriden(string template)
+        {
+            // Arrange
+            var razorProject = new Mock<RazorProject>();
+            razorProject.Setup(p => p.EnumerateItems("/"))
+                .Returns(new[]
+                {
+                    GetProjectItem("/", "/Test.cshtml", $"@page {template} {Environment.NewLine}<h1>Hello world</h1>"),
+                });
+            var provider = new PageActionDescriptorProvider(
+                razorProject.Object,
+                GetAccessor<MvcOptions>(),
+                GetAccessor<RazorPagesOptions>());
+            var context = new ActionDescriptorProviderContext();
+
+            // Act and Assert
+            var ex = Assert.Throws<InvalidOperationException>(() => provider.OnProvidersExecuting(context));
+            Assert.Equal(
+                "The route for the page at '/Test.cshtml' cannot start with / or ~/. " +
+                "Pages do not support overriding the file path of the page.",
+                ex.Message);
+        }
+
+        [Fact]
+        public void GetDescriptors_WithEmptyPageDirective_MapsIndexToEmptySegment()
+        {
+            // Arrange
+            var razorProject = new Mock<RazorProject>();
+            razorProject.Setup(p => p.EnumerateItems("/"))
+                .Returns(new[]
+                {
+                    GetProjectItem("/About", "/Index.cshtml", $"@page {Environment.NewLine}"),
+                });
+            var provider = new PageActionDescriptorProvider(
+                razorProject.Object,
+                GetAccessor<MvcOptions>(),
+                GetAccessor<RazorPagesOptions>());
+            var context = new ActionDescriptorProviderContext();
+
+            // Act
+            provider.OnProvidersExecuting(context);
+
+            // Assert
+            Assert.Collection(context.Results,
+                result =>
+                {
+                    var descriptor = Assert.IsType<PageActionDescriptor>(result);
+                    Assert.Equal("/About/Index.cshtml", descriptor.RelativePath);
+                    Assert.Equal("/Index", descriptor.RouteValues["page"]);
+                    Assert.Equal("About/Index", descriptor.AttributeRouteInfo.Template);
+                },
+                result =>
+                {
+                    var descriptor = Assert.IsType<PageActionDescriptor>(result);
+                    Assert.Equal("/About/Index.cshtml", descriptor.RelativePath);
+                    Assert.Equal("/Index", descriptor.RouteValues["page"]);
+                    Assert.Equal("About", descriptor.AttributeRouteInfo.Template);
+                });
+        }
+
+        [Fact]
+        public void GetDescriptors_WithNonEmptyPageDirective_MapsIndexToEmptySegment()
+        {
+            // Arrange
+            var razorProject = new Mock<RazorProject>();
+            razorProject.Setup(p => p.EnumerateItems("/"))
+                .Returns(new[]
+                {
+                    GetProjectItem("/Catalog/Details", "/Index.cshtml", $"@page {{id:int?}} {Environment.NewLine}"),
+                });
+            var provider = new PageActionDescriptorProvider(
+                razorProject.Object,
+                GetAccessor<MvcOptions>(),
+                GetAccessor<RazorPagesOptions>());
+            var context = new ActionDescriptorProviderContext();
+
+            // Act
+            provider.OnProvidersExecuting(context);
+
+            // Assert
+            Assert.Collection(context.Results,
+                result =>
+                {
+                    var descriptor = Assert.IsType<PageActionDescriptor>(result);
+                    Assert.Equal("/Catalog/Details/Index.cshtml", descriptor.RelativePath);
+                    Assert.Equal("/Index", descriptor.RouteValues["page"]);
+                    Assert.Equal("Catalog/Details/Index/{id:int?}", descriptor.AttributeRouteInfo.Template);
+                },
+                result =>
+                {
+                    var descriptor = Assert.IsType<PageActionDescriptor>(result);
+                    Assert.Equal("/Catalog/Details/Index.cshtml", descriptor.RelativePath);
+                    Assert.Equal("/Index", descriptor.RouteValues["page"]);
+                    Assert.Equal("Catalog/Details/{id:int?}", descriptor.AttributeRouteInfo.Template);
+                });
+        }
+
+        [Fact]
+        public void GetDescriptors_AddsGlobalFilters()
+        {
+            // Arrange
+            var filter1 = Mock.Of<IFilterMetadata>();
+            var filter2 = Mock.Of<IFilterMetadata>();
+            var options = new MvcOptions();
+            options.Filters.Add(filter1);
+            options.Filters.Add(filter2);
+            var razorProject = new Mock<RazorProject>();
+            razorProject.Setup(p => p.EnumerateItems("/"))
+                .Returns(new[]
+                {
+                    GetProjectItem("/", "/Home.cshtml", $"@page {Environment.NewLine}"),
+                });
+            var provider = new PageActionDescriptorProvider(
+                razorProject.Object,
+                GetAccessor(options),
+                GetAccessor<RazorPagesOptions>());
+            var context = new ActionDescriptorProviderContext();
+
+            // Act
+            provider.OnProvidersExecuting(context);
+
+            // Assert
+            var result = Assert.Single(context.Results);
+            var descriptor = Assert.IsType<PageActionDescriptor>(result);
+            Assert.Collection(descriptor.FilterDescriptors,
+                filterDescriptor =>
+                {
+                    Assert.Equal(FilterScope.Global, filterDescriptor.Scope);
+                    Assert.Same(filter1, filterDescriptor.Filter);
+                },
+                filterDescriptor =>
+                {
+                    Assert.Equal(FilterScope.Global, filterDescriptor.Scope);
+                    Assert.Same(filter2, filterDescriptor.Filter);
+                });
+        }
+
+        [Fact]
+        public void GetDescriptors_AddsFiltersAddedByConvention()
+        {
+            // Arrange
+            var globalFilter = Mock.Of<IFilterMetadata>();
+            var localFilter = Mock.Of<IFilterMetadata>();
+            var options = new MvcOptions();
+            options.Filters.Add(globalFilter);
+            var convention = new Mock<IPageModelConvention>();
+            convention.Setup(c => c.Apply(It.IsAny<PageModel>()))
+                .Callback((PageModel model) =>
+                {
+                    model.Filters.Add(localFilter);
+                });
+            var razorOptions = new RazorPagesOptions();
+            razorOptions.Conventions.Add(convention.Object);
+
+            var razorProject = new Mock<RazorProject>();
+            razorProject.Setup(p => p.EnumerateItems("/"))
+                .Returns(new[]
+                {
+                    GetProjectItem("/", "/Home.cshtml", $"@page {Environment.NewLine}"),
+                });
+            var provider = new PageActionDescriptorProvider(
+                razorProject.Object,
+                GetAccessor(options),
+                GetAccessor(razorOptions));
+            var context = new ActionDescriptorProviderContext();
+
+            // Act
+            provider.OnProvidersExecuting(context);
+
+            // Assert
+            var result = Assert.Single(context.Results);
+            var descriptor = Assert.IsType<PageActionDescriptor>(result);
+            Assert.Collection(descriptor.FilterDescriptors,
+                filterDescriptor =>
+                {
+                    Assert.Equal(FilterScope.Global, filterDescriptor.Scope);
+                    Assert.Same(globalFilter, filterDescriptor.Filter);
+                },
+                filterDescriptor =>
+                {
+                    Assert.Equal(FilterScope.Action, filterDescriptor.Scope);
+                    Assert.Same(localFilter, filterDescriptor.Filter);
+                });
+        }
+
+        private static IOptions<TOptions> GetAccessor<TOptions>(TOptions options = null)
+            where TOptions : class, new()
+        {
+            var accessor = new Mock<IOptions<TOptions>>();
+            accessor.SetupGet(a => a.Value).Returns(options ?? new TOptions());
+            return accessor.Object;
+        }
+
+        private static RazorProjectItem GetProjectItem(string basePath, string path, string content)
+        {
+            var testFileInfo = new TestFileInfo
+            {
+                Content = content,
+            };
+
+            return new DefaultRazorProjectItem(testFileInfo, basePath, path);
+        }
+
+
+    }
+}

test/Microsoft.AspNetCore.Mvc.RazorPages.Test/Microsoft.AspNetCore.Mvc.RazorPages.Test.xproj

@@ -4,7 +4,6 @@
     <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0</VisualStudioVersion>
     <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
   </PropertyGroup>
-
   <Import Project="$(VSToolsPath)\DotNet\Microsoft.DotNet.Props" Condition="'$(VSToolsPath)' != ''" />
   <PropertyGroup Label="Globals">
     <ProjectGuid>0ab46520-f441-4e01-b444-08f4d23f8b1b</ProjectGuid>
@@ -13,9 +12,11 @@
     <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
     <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
   </PropertyGroup>
-
   <PropertyGroup>
     <SchemaVersion>2.0</SchemaVersion>
   </PropertyGroup>
+  <ItemGroup>
+    <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />
+  </ItemGroup>
   <Import Project="$(VSToolsPath)\DotNet\Microsoft.DotNet.targets" Condition="'$(VSToolsPath)' != ''" />
-</Project>
+</Project>

test/Microsoft.AspNetCore.Mvc.RazorPages.Test/project.json

@@ -4,11 +4,15 @@
   },
   "dependencies": {
     "dotnet-test-xunit": "2.2.0-*",
-    "Microsoft.AspNetCore.Testing": "1.2.0-*",
+    "Microsoft.AspNetCore.Mvc.RazorPages": "1.0.0-*",
+    "Microsoft.AspNetCore.Mvc.TestCommon": {
+      "target": "project"
+    },
     "Microsoft.DotNet.InternalAbstractions": "1.0.0",
     "Moq": "4.6.36-*",
     "xunit": "2.2.0-*"
   },
+  "testRunner": "xunit",
   "frameworks": {
     "netcoreapp1.1": {
       "dependencies": {