--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Agendas/trunk/src/Agendas.Blog/Impl/PostWriterWebServiceAdapter.cs	Sat Jun 04 22:33:05 2011 -0300
@@ -0,0 +1,60 @@
+using System;
+using System.Globalization;
+using System.Security.Cryptography;
+using System.ServiceModel;
+using Agendas.Blog.Exceptions;
+using Agendas.Blog.PortalSitefinity;
+
+namespace Agendas.Blog.Impl
+{
+  public class PostWriterWebServiceAdapter : IPostWriterWebService
+  {
+    private readonly PostWriterWebServiceSoapClient _service;
+
+    public PostWriterWebServiceAdapter()
+    {
+      var postWriterUrl = System.Configuration.ConfigurationManager.AppSettings["PublicadorBlog.PostWriterServiceUrl"];
+      if (string.IsNullOrEmpty(postWriterUrl))
+        throw new PostWriterServiceUrlNotFoundException();
+
+      _service = new PortalSitefinity.PostWriterWebServiceSoapClient(new BasicHttpBinding(), new EndpointAddress(postWriterUrl));
+    }
+
+    private static string buildToken(string key, DateTime time)
+    {
+      var aux = key + time.ToString(CultureInfo.InvariantCulture);
+
+      var enc = System.Text.Encoding.ASCII.GetEncoder();
+
+      var data = new byte[aux.Length];
+      enc.GetBytes(aux.ToCharArray(), 0, aux.Length, data, 0, true);
+
+      var md5 = new MD5CryptoServiceProvider();
+      var result = md5.ComputeHash(data);
+
+      return BitConverter.ToString(result).Replace("-", "").ToLower();
+    }
+
+    public void WriteBlogPost(string postTitle, string postHtmlContent, string postAuthor, bool setPublicationDate)
+    {
+      var securityToken = getSecurityToken();
+      var blogName = System.Configuration.ConfigurationManager.AppSettings["PublicadorBlog.BlogName"];
+      if (string.IsNullOrEmpty(blogName))
+        throw new BlogNameNotFoundException();
+
+      _service.WriteBlogPost(securityToken, blogName, postTitle, postHtmlContent, postAuthor, setPublicationDate);
+    }
+
+    private static string getSecurityToken()
+    {
+      var masterKey = System.Configuration.ConfigurationManager.AppSettings["PublicadorBlog.BlogWriterMasterKey"];
+      if (string.IsNullOrEmpty(masterKey))
+        throw new BlogWriterMasterKeyNotFoundException();
+
+      var now = DateTime.UtcNow;
+      now = new DateTime(now.Year, now.Month, now.Day, now.Hour, now.Minute, 0, 0);
+
+      return buildToken(masterKey, now);
+    }
+  }
+}
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