Added "HttpStatusCode" file property to send specific HTTP status cod…

…es. Updaed Markdig.

src/IISHelpers/TypesHelper.cs

@@ -19,5 +19,30 @@ internal static T DoConvert<T>(object v)
                 return (T)Activator.CreateInstance(typeof(T));
             }
         }
+
+        /// <summary>
+        /// Determines if a string value (normally got from params or Front-Matter)
+        /// representes a "true" value or not.
+        /// Valid "true" values are: "1", "true" and "yes"
+        /// </summary>
+        /// <param name="val">The value to be checked</param>
+        /// <returns>true if is a truthy value according to the criteria</returns>
+        internal static bool IsTruthy(string val)
+        {
+            val = val.ToLower();
+            return (val == "1" || val == "true" || val == "yes");
+        }
+
+        /// <summary>
+        /// Determines if a string value (normally got from params or Front-Matter)
+        /// representes a "false" value or not.
+        /// Valid "false" values are: "0", "false" and "no"
+        /// </summary>
+        /// <param name="val">The value to be checked</param>
+        /// <returns>true if is a truthy value according to the criteria</returns>
+        internal static bool IsFalsy(string val)
+        {
+            return (val == "0" || val == "false" || val == "no");
+        }
     }
 }

src/MIISHandler/Common.cs

@@ -7,6 +7,23 @@ public static class Common
     {
         public const string WEB_CONFIG_PARAM_PREFIX = "MIIS:"; //THe prefix to use to search for parameters in web.config
 
+        public static string GetFieldValueFromFM(string name, MarkdownFile md, string defValue = "")
+        {
+            if (md != null) //If there's a file, possibly with a Front Matter
+            {
+                //Retrieve from the front matter...
+                string val = md.FrontMatter[name];
+                if (!string.IsNullOrEmpty(val))
+                    return val;
+                else
+                    return defValue;    //Return defValue if field is not available
+            }
+            else
+            {
+                return defValue;    //Return defValue if there's not MD file to process
+            }
+        }
+
         /// <summary>
         /// Returns the value, if any, for a specified field name. It takes the value from the FrontMatter first, and if it's not there, tries to read it from the current Web.config.
         /// In web.config it first tries to read them prefixed with "MIIS_" to prevent collision with other products, and then without the prefix.

src/MIISHandler/MIISHandler.cs

@@ -49,8 +49,12 @@ public void ProcessRequest(HttpContext ctx)
                 else
                 {
                     //Check if the File is published
-                    if (mdFile.isPublished)
+                    if (mdFile.IsPublished)
                     {
+                        //Check if is a 404 page
+                        if (mdFile.HttpStatusCode != 200)
+                            ctx.Response.StatusCode = mdFile.HttpStatusCode;
+
                         //Send the rendered HTML for the file
                         ctx.Response.ContentType = "text/html";
                         ctx.Response.Write(mdFile.HTML);

src/MIISHandler/MIISHandler.csproj

@@ -41,9 +41,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Markdig, Version=0.14.9.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\Markdig.0.14.9\lib\net35\Markdig.dll</HintPath>
-      <Private>True</Private>
+    <Reference Include="Markdig, Version=0.15.1.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\Markdig.0.15.1\lib\net35\Markdig.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Web" />
@@ -104,7 +103,7 @@
     <Content Include="Templates\_common_fonts\fontawesome-webfont.eot" />
     <Content Include="Templates\_common_fonts\fontawesome-webfont.ttf" />
     <Content Include="Templates\_common_fonts\fontawesome-webfont.woff" />
-    <Content Include="packages.config" />
+    <None Include="packages.config" />
     <None Include="Web.Debug.config">
       <DependentUpon>Web.config</DependentUpon>
     </None>

src/MIISHandler/MarkdownFile.cs

@@ -29,7 +29,6 @@ public class MarkdownFile
         private DateTime _dateCreated;
         private DateTime _dateLastModified;
         private SimpleYAMLParser _FrontMatter;
-        private bool _isPublished;
         #endregion
 
         #region Constructor
@@ -227,14 +226,28 @@ public DateTime DateLastModified {
         internal List<string> Dependencies { get; private set; }
 
         //If the file is published or is explicitly forbidden by the author using the "Published" field
-        internal bool isPublished
+        internal bool IsPublished
         {
             get
             {
                 //Check if the File is published with the "Published" field
                 string isPublished = Common.GetFieldValue("Published", this, "1").ToLower();
-                //Check explicit negative values. Any other value means it's published (for the sake of security)
-                return !(isPublished == "0" || isPublished == "false" || isPublished == "no");
+                //For the sake of security, if it's not explicitly a "falsy" value, then is assumed true
+                return !TypesHelper.IsFalsy(isPublished);
+            }
+        }
+
+        //Determines a special status code to return for the file (default is 200, OK)
+        //Valid status codes: https://docs.microsoft.com/en-us/windows/desktop/WinHttp/http-status-codes
+        internal int HttpStatusCode
+        {
+            get
+            {
+                //Check if the File has a status code that is not a 200 (default OK status code)
+                string statusCode = Common.GetFieldValueFromFM("HttpStatusCode", this, "200").ToLower();
+                bool isInt = int.TryParse(statusCode, out int nStatus);
+                if (!isInt) nStatus = 200;
+                return Math.Abs(nStatus);
             }
         }
         #endregion
@@ -253,7 +266,7 @@ private void EnsureContentAndFrontMatter()
         {
             EnsureContent();
             ProcessFrontMatter();   //Make sure the FM is processed
-            removeFrontMatter();    //This is a separate step because FM can be cached and it's only dependent of the current file
+            RemoveFrontMatter();    //This is a separate step because FM can be cached and it's only dependent of the current file
         }
 
         //Extracts Front-Matter from current file
@@ -301,7 +314,7 @@ private void ProcessFrontMatter()
         }
 
         //Removes the front matter, if any, from the current contents
-        private void removeFrontMatter()
+        private void RemoveFrontMatter()
         {
             _content = FRONT_MATTER_RE.Replace(_content, "");
         }

src/MIISHandler/Properties/AssemblyInfo.cs

@@ -31,5 +31,5 @@
 //
 // You can specify all the values or you can default the Revision and Build Numbers 
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("2.1.0")]
-[assembly: AssemblyFileVersion("2.1.0")]
+[assembly: AssemblyVersion("2.2.0")]
+[assembly: AssemblyFileVersion("2.2.0")]

src/MIISHandler/packages.config

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Markdig" version="0.14.9" targetFramework="net35" />
+  <package id="Markdig" version="0.15.1" targetFramework="net35" />
 </packages>

src/MIISHandler/packages.config.old.20180817214207

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Markdig" version="0.14.9" targetFramework="net35" />
+</packages>