using System;
using System.Threading;
using System.ComponentModel;
using System.Web.Services.Protocols;
using System.Windows.Forms;
using System.Net;
using System.Security;
using System.Text;
using System.Runtime.InteropServices;
using Sand.Services.CodeXchange.API.Interfaces;
using Sand.Services.CodeXchange.Client;
using Sand.Services.CodeXchange.Client.CodeXchangeService;
namespace Sand.Services.CodeXchange.API
{
public class WebServiceExceptions
{
public const string IV_WEBEXCEPTION_TEXT = "The server is not responding. Please try again.";
public const string IV_WEBEXCEPTION_TITLE = "Network Error";
public const string IV_SOAPEXCEPTION_TEXT = "The system could not log you on .Unknown username or password.";
public const string IV_SOAPEXCEPTION_TITLE = "Login Error";
public const string IV_EXCEPTION_TEXT = "An unknown error has occurred";
public const string IV_EXCEPTION_TITLE = "Unknown Error";
}
/// <summary>
/// Summary description for ConnectionThread.
/// </summary>
public class CodeXchangeServiceLayer : Component
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
/* EVENTS */
public event EventHandler OnConnect;
public event EventHandler OnRequestProviders;
public event EventHandler OnRefreshMySnippetsRequest;
/* PROVIDERS */
private IConnectionProvider m_ConnectionProvider = null;
private ISecurityProvider m_SecurityProvider = null;
/// <summary>
/// The webservice response.
/// </summary>
private ServiceInfo serviceInfo = null;
/// <summary>
/// Creates a new instance of the <see cref="CodeXchangeServiceLayer"/> class.
/// </summary>
/// <param name="container"></param>
public CodeXchangeServiceLayer (System.ComponentModel.IContainer container)
{
container.Add(this);
InitializeComponent();
}
/// <summary>
/// Creates a new instance of the <see cref="CodeXchangeServiceLayer"/> class.
/// </summary>
public CodeXchangeServiceLayer()
{
InitializeComponent();
}
/// <summary>
/// Returns true is a connection with the webservice is available.
/// </summary>
public bool IsConnected
{
get { return (serviceInfo != null) ? true : false; }
}
public ServiceInfo ServiceInfo
{
get { return serviceInfo; }
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
components = new System.ComponentModel.Container();
}
#endregion
public void Login ()
{
FireOnRequestProviders ();
BackgroundWorker bgThread = new BackgroundWorker();
bgThread.DoWork += new DoWorkEventHandler(bgThread_DoWork);
bgThread.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bgThread_RunWorkerCompleted);
bgThread.RunWorkerAsync();
///Perform the login on a different thread...
//Thread thread = new Thread (new ThreadStart(BeginProcessing));
//thread.Start();
}
void bgThread_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
FireOnServiceConnect();
}
void bgThread_DoWork(object sender, DoWorkEventArgs e)
{
BeginProcessing();
}
public void Logout ()
{
//Destroy the connection ...
serviceInfo = null;
SecurityProvider.ClearLoginCache ();
}
public Snippet GetSnippet (Guid snippetID )
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
return CodeXchangeService.GetSnippet (snippetID);
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception e)
{
MessageBox.Show ("Can't get snippet. The message was :" + e.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
return null;
}
public Snippet[] GetMySnippets ()
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
return CodeXchangeService.GetMySnippets ();
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception e)
{
MessageBox.Show ("Your shared snippets list could not be retrieved. The message was :" + e.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
return new Snippet[]{};
}
public Snippet[] Search (string searchString)
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
return CodeXchangeService.SearchSnippets (searchString);
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception e)
{
MessageBox.Show ("Search Error.The message was :" + e.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
return new Snippet[]{};
}
public void RateSnippet (Guid snippetID, int vote)
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
CodeXchangeService.RateSnippet (snippetID , vote);
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception ex)
{
MessageBox.Show ("The snippet vote has not been cast .The message was :" + ex.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
}
public void AddSnippetComment (
Guid snippetID,
string subject,
string text)
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
CodeXchangeService.AddSnippetComment (
snippetID ,
subject ,
text);
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception ex)
{
MessageBox.Show ("Your comment could not be posted .The message was :" + ex.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
}
public Comment[] GetSnippetComments (Guid snippetID)
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
return CodeXchangeService.GetSnippetComments (snippetID);
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception ex)
{
MessageBox.Show ("Could not get Snippet commands. The message was :" + ex.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
return new Comment[]{};
}
public bool RemoveSnippet (Guid snippetID)
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
bool result = CodeXchangeService.RemoveSnippet (snippetID);
if(result)
{
//Notify the user...
if(MessageBox.Show ("Your snippet has been removed from CodeXchange\n\n Do you want to refresh your list of contributed snippets?" ,
"CodeXchange Addin" ,
MessageBoxButtons.YesNo ,
MessageBoxIcon.Information) == DialogResult.Yes)
{
FireOnRefreshMySnippetsRequest ();
}
}
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception ex)
{
MessageBox.Show ("The snippet could not be removed.The message was :" + ex.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
return false;
}
public void PublishSnippet (
Guid languageID,
Guid categoryID,
string summary,
string code,
string culture,
bool isPrivate,
bool hasCodeComments)
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
CodeXchangeService.AddSnippet (languageID ,
categoryID ,
summary ,
code ,
culture ,
isPrivate ,
hasCodeComments);
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception e)
{
MessageBox.Show ("The snippet could not be uploaded .The message was :" + e.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
}
public bool UpdateSnippet (
Guid snippetID ,
Guid languageID ,
Guid categoryID ,
string summary ,
string code ,
string culture ,
bool isPrivate ,
bool hasCodeComments)
{
if(!IsConnected)
throw new NotConnectedException ();
try
{
bool result = CodeXchangeService.UpdateSnippet (
snippetID ,
languageID ,
categoryID ,
summary ,
code ,
culture ,
isPrivate ,
hasCodeComments);
if (result)
{
//Notify the user...
if(MessageBox.Show (
"Your snippet has been updated\n\nDo you want to refresh your list of contributed snippets?" ,
"CodeXchange Addin" ,
MessageBoxButtons.YesNo ,
MessageBoxIcon.Information) == DialogResult.Yes)
{
FireOnRefreshMySnippetsRequest ();
}
}
else
{
MessageBox.Show ("The snippet could not be updated. Are you the snippet author?" ,
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
return result;
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(Exception e)
{
MessageBox.Show ("The snippet could not be updated. The message was :" + e.Message.ToString(),
"CodeXchange Addin" ,
MessageBoxButtons.OK ,
MessageBoxIcon.Information);
}
return false;
}
private void BeginProcessing ()
{
//If we have an active internet connection ...
if(ConnectionProvider.HasInternetConnection)
{
try
{
//Try to login to the webservice...
serviceInfo = CodeXchangeService.Login ();
}
catch(WebException) //Service not found or connection error.
{
MessageBox.Show (WebServiceExceptions.IV_WEBEXCEPTION_TEXT ,
WebServiceExceptions.IV_WEBEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
catch(SoapException) //Unknow user or password!
{
MessageBox.Show (WebServiceExceptions.IV_SOAPEXCEPTION_TEXT,
WebServiceExceptions.IV_SOAPEXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
//Nos aseguramos de que el cliente solicite de nuevo un
//usuario y password al cliente.
SecurityProvider.ClearLoginCache ();
}
catch(Exception e) //Service Exception ???
{
MessageBox.Show (e.Message + " " + e.StackTrace.ToString(),
WebServiceExceptions.IV_EXCEPTION_TITLE ,
MessageBoxButtons.OK ,
MessageBoxIcon.Error);
}
}
//Notify to the main UI thread that we have connection with the WS.
//FireOnServiceConnect ();
}
protected virtual CodeXchangeService CodeXchangeService
{
get
{
CodeXchangeService wsCodeXchange = new CodeXchangeService();
//Preparamos el security header para identificar al usuario...
SecurityHeader securityHeader = new SecurityHeader ();
//Configuramos la obtencion de las credenciales a usar por el webserice ...
SecurityProvider.ConfigureLoginCredentials ();
//Lo configuramos en base a sus credenciales...
securityHeader.Password = SecurityProvider.Password;
securityHeader.Username = SecurityProvider.UserName;
//Le agregamos las credenciales al webservice.
wsCodeXchange.SecurityHeaderValue = securityHeader;
//Attach credentials to the proxy to ensure it works on
wsCodeXchange.Proxy = ConnectionProvider.CreateProxy();
return wsCodeXchange;
}
}
protected virtual void CheckProviders ()
{
if (ConnectionProvider == null)
throw new MissingProviderException ("Connection provider not set");
if (SecurityProvider == null)
throw new MissingProviderException ("Security provider not set");
}
public virtual IConnectionProvider ConnectionProvider
{
get { return m_ConnectionProvider;}
set { m_ConnectionProvider = value;}
}
public virtual ISecurityProvider SecurityProvider
{
get { return m_SecurityProvider;}
set { m_SecurityProvider = value;}
}
protected virtual void FireOnServiceConnect ()
{
if (OnConnect != null)
OnConnect (this , EventArgs.Empty);
}
protected virtual void FireOnRequestProviders ()
{
if (OnRequestProviders != null)
OnRequestProviders (this , EventArgs.Empty);
}
protected virtual void FireOnRefreshMySnippetsRequest ()
{
if (OnRefreshMySnippetsRequest != null)
OnRefreshMySnippetsRequest (this , EventArgs.Empty);
}
}
}
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