From e0d1082a9323e899623de080550e5d1ef3db9121 Mon Sep 17 00:00:00 2001
From: stubbfel <stubbe@iit.tu-cottbus.de>
Date: Wed, 21 Aug 2013 11:50:24 +0200
Subject: [PATCH] add NDEFMessage

---
 CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj |   4 +-
 .../Model/Utility/NDEF/NDEFRecord.cs          |  92 ---------
 .../CampusAppWP8/Pages/Dev/NFC.xaml.cs        |  13 +-
 .../CampusAppWP8/Utility/NDEF/NDEFMessage.cs  |  86 +++++++++
 .../CampusAppWP8/Utility/NDEF/NDEFRecord.cs   | 180 ++++++++++++++++++
 .../Utility/NDEF/NDEFShortRecord.cs           |  60 ++++++
 6 files changed, 336 insertions(+), 99 deletions(-)
 delete mode 100644 CampusAppWP8/CampusAppWP8/Model/Utility/NDEF/NDEFRecord.cs
 create mode 100644 CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFMessage.cs
 create mode 100644 CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFRecord.cs
 create mode 100644 CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFShortRecord.cs

diff --git a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
index a2653e83..977c79f6 100644
--- a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
+++ b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
@@ -116,7 +116,9 @@
     <Compile Include="Model\Utility\DegreeListPickerItemListModel.cs" />
     <Compile Include="Model\Utility\CleanUrlParamModel.cs" />
     <Compile Include="Model\Utility\CampusListPickerItemListModel.cs" />
-    <Compile Include="Model\Utility\NDEF\NDEFRecord.cs" />
+    <Compile Include="Utility\NDEF\NDEFMessage.cs" />
+    <Compile Include="Utility\NDEF\NDEFRecord.cs" />
+    <Compile Include="Utility\NDEF\NDEFShortRecord.cs" />
     <Compile Include="Model\Utility\RoleListPickerItemListModel.cs" />
     <Compile Include="Model\Utility\SemesterListPickerItemListModel.cs" />
     <Compile Include="Model\Utility\ListPickerItemListModel.cs" />
diff --git a/CampusAppWP8/CampusAppWP8/Model/Utility/NDEF/NDEFRecord.cs b/CampusAppWP8/CampusAppWP8/Model/Utility/NDEF/NDEFRecord.cs
deleted file mode 100644
index a9bfbbff..00000000
--- a/CampusAppWP8/CampusAppWP8/Model/Utility/NDEF/NDEFRecord.cs
+++ /dev/null
@@ -1,92 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace CampusAppWP8.Model.Utility.NDEF
-{
-    public class NDEFRecord
-    {
-        private const byte typeSize = 0x01;
-        public enum NDEFFlags
-        {
-            UNSET = 0x00,
-            MBSET = 0x80,
-            MESET = 0x40,
-            CFSET = 0x20,
-            SRSET = 0x10,
-            ILSET = 0x08
-        }
-
-        public enum TNFVAL
-        {
-            EMPTY = 0x00,
-            WKT = 0x01,
-            MEDIATYPE = 0x02,
-            URI = 0x03,
-            NFCE = 0x04,
-            UNKOWN = 0x05,
-            UNCHANGED = 0x06,
-            RESERVED = 0x07
-        }
-
-        public enum TYPEVAL
-        {
-            EMPTY = 0x00,
-            URL = 0x55,
-            TEXT = 0x54,
-        }
-
-        public NDEFRecord()
-        {
-            
-        }
-        public NDEFRecord(byte[] array)
-        {
-            this.Payload = Encoding.UTF8.GetString(array, 4, array.Length - 4);
-        }
-        public NDEFFlags MB { get; set; }
-        public NDEFFlags ME { get; set; }
-        public NDEFFlags CF { get; set; }
-        public NDEFFlags SR { get; set; }
-        public NDEFFlags IL { get; set; }
-        public TNFVAL TNF { get; set; }
-        public TYPEVAL Type { get; set; }
-        public byte FormatFlags
-        {
-            get
-            {
-                return (byte)((byte)this.TNF | ((byte)this.MB) | ((byte)this.ME) | ((byte)this.CF) | ((byte)this.SR) | ((byte)this.IL));
-            }
-        }
-
-
-        public byte Record = 0xD1;
-
-        public string Payload = "nokia.com";
-
-        public byte[] toByteArray()
-        {
-            MemoryStream m = new MemoryStream();
-            byte[] payloadAr = Encoding.UTF8.GetBytes(Payload);
-            byte[] array = new byte[payloadAr.Length + 4];
-
-            array[0] = this.FormatFlags;
-            array[1] = NDEFRecord.typeSize;
-            array[2] = (byte)(Payload.Length);
-            array[3] = (byte)this.Type;
-
-            int i = 4;
-            foreach (byte b in payloadAr)
-            {
-                array[i] = b;
-                i++;
-            }
-            return array;
-        }
-
-
-    }
-}
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Dev/NFC.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Dev/NFC.xaml.cs
index 6549e8a8..d5a2fb86 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Dev/NFC.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Dev/NFC.xaml.cs
@@ -9,7 +9,7 @@ using Microsoft.Phone.Controls;
 using Microsoft.Phone.Shell;
 using Windows.Networking.Proximity;
 using System.Runtime.InteropServices.WindowsRuntime;
-using CampusAppWP8.Model.Utility.NDEF;
+using CampusAppWP8.Utility.NDEF;
 
 
 namespace CampusAppWP8.Pages.Dev
@@ -60,15 +60,16 @@ namespace CampusAppWP8.Pages.Dev
 
             this.device.StopSubscribingForMessage(message.SubscriptionId);
 
-            NDEFRecord ndef = new NDEFRecord();
+           /* NDEFRecord ndef = new NDEFRecord();
             ndef.TNF = NDEFRecord.TNFVAL.URI;
             ndef.MB = NDEFRecord.NDEFFlags.MBSET;
             ndef.ME = NDEFRecord.NDEFFlags.MESET;
             ndef.SR = NDEFRecord.NDEFFlags.SRSET;
             ndef.Type = NDEFRecord.TYPEVAL.TEXT;
-            ndef.toByteArray();
-            ndef.Payload = "test";
-            device.PublishBinaryMessage("NDEF:WriteTag", ndef.toByteArray().AsBuffer(), publishHandler);
+            ndef.ToByteArray();
+            ndef.Payload = "test";*/
+            NDEFMessage ndef = new NDEFMessage("test", NDEFMessage.TYPEVAL.TEXT);
+            device.PublishBinaryMessage("NDEF:WriteTag", ndef.ToByteArray().AsBuffer(), publishHandler);
         }
 
         private void publishHandler(ProximityDevice sender, long messageId)
@@ -84,7 +85,7 @@ namespace CampusAppWP8.Pages.Dev
 
             var NDefMessage = message.Data;
             byte[] testa = NDefMessage.ToArray();
-            NDEFRecord test = new NDEFRecord(testa);
+          //  NDEFRecord test = new NDEFRecord(testa);
         }
     }
 }
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFMessage.cs b/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFMessage.cs
new file mode 100644
index 00000000..9dac3ec4
--- /dev/null
+++ b/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFMessage.cs
@@ -0,0 +1,86 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CampusAppWP8.Utility.NDEF
+{
+    public class NDEFMessage
+    {
+        private List<NDEFRecord> records;
+
+        public NDEFMessage(string content, TYPEVAL type)
+        {
+            this.records = new List<NDEFRecord>();
+            float recordsCount = content.Length / NDEFRecord.MaxRecordPayLoad;
+            NDEFRecord tmpRecord = null;
+
+            for (int i = 0; recordsCount > 0; i++)
+            {
+                tmpRecord = new NDEFShortRecord();
+                tmpRecord.Type = type;
+                tmpRecord.Payload = content.Substring(i * 255, 255);
+                if (i == 0)
+                {
+                    tmpRecord.MB = NDEFRecord.NDEFFlags.MBSET;
+                }
+                this.records.Add(tmpRecord);
+                recordsCount--;
+            }
+
+            this.records[this.records.IndexOf(tmpRecord)].ME = NDEFRecord.NDEFFlags.MESET;
+        }
+
+        public NDEFMessage(byte[] array)
+        {
+            this.records = new List<NDEFRecord>();
+
+            NDEFRecord tmpRecord = null;
+            for (int i = 0; i < array.Length; i += tmpRecord.RecordSize)
+            {
+                tmpRecord = new NDEFShortRecord(array,i);
+                this.records.Add(tmpRecord);
+            }
+        }
+
+
+        /// <summary>Values that represent TYPEVAL.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        public enum TYPEVAL
+        {
+            /// <summary>An enum constant representing the empty option.</summary>
+            EMPTY = 0x00,
+
+            /// <summary>An enum constant representing the URL option.</summary>
+            URL = 0x55,
+
+            /// <summary>An enum constant representing the text option.</summary>
+            TEXT = 0x54,
+        }
+
+        public string GetContent()
+        {
+            string result = string.Empty;
+
+            foreach (NDEFRecord record in this.records)
+            {
+                result += record.Payload;
+            }
+
+            return result;
+        }
+
+        public byte[] ToByteArray()
+        {
+
+            MemoryStream ms = new MemoryStream();
+            foreach (NDEFRecord record in this.records)
+            {
+                ms.Write(record.ToByteArray(), 0, record.RecordSize);
+            }
+            return ms.ToArray();
+        }
+    }
+}
diff --git a/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFRecord.cs b/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFRecord.cs
new file mode 100644
index 00000000..50f9b46e
--- /dev/null
+++ b/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFRecord.cs
@@ -0,0 +1,180 @@
+//-----------------------------------------------------------------------
+// <copyright file="NDEFRecord.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>21.08.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Utility.NDEF
+{
+    using System.IO;
+    using System.Text;
+
+    /// <summary>Ndef record of a NDEFMessage.</summary>
+    /// <remarks>Stubbfel, 21.08.2013.</remarks>
+    public abstract class NDEFRecord
+    {
+        #region Members
+
+        /// <summary>The maximum record pay load.</summary>
+        public const int MaxRecordPayLoad = 255;
+
+        /// <summary>Size of the type.</summary>
+        protected const byte TypeSize = 0x01;
+
+        /// <summary>Size of the type.</summary>
+        protected int HeaderSize;
+
+        #endregion
+
+        #region  Constructors
+        /// <summary>Initializes a new instance of the NDEFRecord class.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        public NDEFRecord()
+        {
+        }
+
+        /// <summary>Initializes a new instance of the NDEFRecord class.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        /// <param name="array">The array.</param>
+        public NDEFRecord(byte[] array, int index = 0)
+        {
+            this.FormatFlags = array[index];
+        }
+
+        #endregion
+
+        #region enum
+
+        /// <summary>Values that represent NDEFFlags.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        public enum NDEFFlags
+        {
+            /// <summary>An Enum constant representing the UNSET option.</summary>
+            UNSET = 0x00,
+
+            /// <summary>An Enum constant representing the Message begin option.</summary>
+            MBSET = 0x80,
+
+            /// <summary>An Enum constant representing the Message end option.</summary>
+            MESET = 0x40,
+
+            /// <summary>An Enum constant representing the CHUNK FLAG option.</summary>
+            CFSET = 0x20,
+
+            /// <summary>An Enum constant representing the Short Record set option.</summary>
+            SRSET = 0x10,
+
+            /// <summary>An Enum constant representing the ID length option.</summary>
+            ILSET = 0x08,
+
+            /// <summary>An enum constant representing the tnfset option.</summary>
+            TNFSET = 0x03
+        }
+
+        /// <summary>Values that represent TNFVAL.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        public enum TNFVAL
+        {
+            /// <summary>An enum constant representing the empty option.</summary>
+            EMPTY = 0x00,
+
+            /// <summary>An enum constant representing the Well-Know-Type option.</summary>
+            WKT = 0x01,
+
+            /// <summary>An enum constant representing the MediaType option.</summary>
+            MEDIATYPE = 0x02,
+
+            /// <summary>An enum constant representing the URI option.</summary>
+            URI = 0x03,
+
+            /// <summary>An enum constant representing the NFCE option.</summary>
+            NFCE = 0x04,
+
+            /// <summary>An enum constant representing the unknow option.</summary>
+            unknow = 0x05,
+
+            /// <summary>An enum constant representing the unchanged option.</summary>
+            UNCHANGED = 0x06,
+
+            /// <summary>An enum constant representing the reserved option.</summary>
+            RESERVED = 0x07
+        }
+
+        #endregion
+
+        #region Properties
+        /// <summary>Gets or sets the MBFlag.</summary>
+        /// <value>The MBFlag.</value>
+        public NDEFFlags MB { get; set; }
+
+        /// <summary>Gets or sets MEFlag.</summary>
+        /// <value>The MEFlag .</value>
+        public NDEFFlags ME { get; set; }
+
+        /// <summary>Gets or sets the CFFlag.</summary>
+        /// <value>The CFFlag.</value>
+        public NDEFFlags CF { get; set; }
+
+        /// <summary>Gets or sets the SRFlag.</summary>
+        /// <value>The SRFlag.</value>
+        public NDEFFlags SR { get; set; }
+
+        /// <summary>Gets or sets the ILFlag.</summary>
+        /// <value>The ILFlag.</value>
+        public NDEFFlags IL { get; set; }
+
+        /// <summary>Gets or sets the TNFField.</summary>
+        /// <value>The TNFField.</value>
+        public TNFVAL TNF { get; set; }
+
+        /// <summary>Gets or sets the type.</summary>
+        /// <value>The type.</value>
+        public NDEFMessage.TYPEVAL Type { get; set; }
+
+        /// <summary>Gets the format flags.</summary>
+        /// <value>The format flags.</value>
+        public byte FormatFlags
+        {
+            get
+            {
+                return (byte)((byte)this.TNF | ((byte)this.MB) | ((byte)this.ME) | ((byte)this.CF) | ((byte)this.SR) | ((byte)this.IL));
+            }
+            protected set
+            {
+                this.TNF = (TNFVAL)(value & (byte)NDEFFlags.TNFSET);
+                this.MB = (NDEFFlags)(value & (byte)NDEFFlags.MBSET);
+                this.ME = (NDEFFlags)(value & (byte)NDEFFlags.MESET);
+                this.CF = (NDEFFlags)(value & (byte)NDEFFlags.CFSET);
+                this.SR = (NDEFFlags)(value & (byte)NDEFFlags.SRSET);
+                this.IL = (NDEFFlags)(value & (byte)NDEFFlags.ILSET);
+            }
+
+        }
+
+        /// <summary>Gets or sets the payload.</summary>
+        /// <value>The payload.</value>
+        public string Payload { get; set; }
+
+        /// <summary>Gets the size of the record.</summary>
+        /// <value>The size of the record.</value>
+        public int RecordSize
+        {
+            get
+            {
+                return this.HeaderSize + this.Payload.Length;
+            }
+        }
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>Converts the record to a byte array.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        /// <returns>This object as a byte[].</returns>
+        public abstract byte[] ToByteArray();
+
+        #endregion
+    }
+}
diff --git a/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFShortRecord.cs b/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFShortRecord.cs
new file mode 100644
index 00000000..02796f30
--- /dev/null
+++ b/CampusAppWP8/CampusAppWP8/Utility/NDEF/NDEFShortRecord.cs
@@ -0,0 +1,60 @@
+//-----------------------------------------------------------------------
+// <copyright file="NDEFShortRecord.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>21.08.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Utility.NDEF
+{
+    using System.Text;
+
+    /// <summary>Ndef short record.</summary>
+    /// <remarks>Stubbfel, 21.08.2013.</remarks>
+    public class NDEFShortRecord : NDEFRecord
+    {
+        /// <summary>Initializes a new instance of the NDEFShortRecord class.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        public NDEFShortRecord()
+        {
+            this.HeaderSize = 4;
+            this.SR = NDEFFlags.SRSET;
+            this.IL = NDEFFlags.UNSET;
+            this.CF = NDEFFlags.UNSET;
+        }
+
+        /// <summary>Initializes a new instance of the NDEFShortRecord class.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        /// <param name="array">The array.</param>
+        public NDEFShortRecord(byte[] array, int index = 0)
+            : base(array)
+        {
+            this.HeaderSize = 4;
+            this.Type = (NDEFMessage.TYPEVAL)array[index + 3];
+            int payLoadSize = array[index + 2];
+            this.Payload = Encoding.UTF8.GetString(array, index + this.HeaderSize, payLoadSize);
+        }
+
+        /// <summary>Converts this NDEFShortRecord to a byte array.</summary>
+        /// <remarks>Stubbfel, 21.08.2013.</remarks>
+        /// <returns>This object as a byte[].</returns>
+        public override byte[] ToByteArray()
+        {
+            byte[] payloadAr = Encoding.UTF8.GetBytes(Payload);
+            byte[] array = new byte[payloadAr.Length + this.HeaderSize];
+
+            array[0] = this.FormatFlags;
+            array[1] = NDEFRecord.TypeSize;
+            array[2] = (byte)(Payload.Length);
+            array[3] = (byte)this.Type;
+
+            int i = this.HeaderSize;
+            foreach (byte b in payloadAr)
+            {
+                array[i] = b;
+                i++;
+            }
+            return array;
+        }
+    }
+}