EDMX Decoder - Entity Framework 6 Serialized Model Data

EdmxDecoder.cs

using System;
using System.IO;
using System.IO.Compression;
using System.Text;

namespace EdmxDecoder
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            /** Convert serialized model data to base64:
             
                declare @binaryContent varbinary(max); 
 
                select @binaryContent = Model
                    from [dbo].[__MigrationHistory]
                where migrationId = '201501091331319_Initial'
 
                select cast('' as xml).value('xs:base64Binary(sql:variable("@binaryContent"))', 
                    'varchar(max)') as base64Content
             */

            string modelBase64 =
                @"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";

            byte[] bytes = Convert.FromBase64String(modelBase64);
            byte[] uncompressed = Decompress(bytes);

            string edmx = Encoding.UTF8.GetString(uncompressed);
            File.WriteAllText(@"c:\edmx.xml", edmx);
        }

        private static byte[] Decompress(byte[] gzip)
        {
            using (var stream = new GZipStream(new MemoryStream(gzip), CompressionMode.Decompress))
            {
                const int size = 4096;
                var buffer = new byte[size];

                using (var memory = new MemoryStream())
                {
                    int count = 0;
                    do
                    {
                        count = stream.Read(buffer, 0, size);
                        if (count > 0)
                        {
                            memory.Write(buffer, 0, count);
                        }
                    } while (count > 0);
                    return memory.ToArray();
                }
            }
        }
    }
}