/// <summary>
/// Event handler for the Click event for the checkForUpdateButton
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void checkForUpdateButton_Click(object sender, EventArgs e)
{
WebClient wc = new WebClient();
Stream stream = null;
// Set the proxy options
int proxyMode = Properties.Settings.Default.ProxyMode;
if ( proxyMode == (int) SessionController.ProxyMode.PROXY_IE )
{
wc.Proxy = WebRequest.GetSystemWebProxy();
}
else if (proxyMode == (int)SessionController.ProxyMode.PROXY_NONE)
{
wc.Proxy = null;
}
else if (proxyMode == (int)SessionController.ProxyMode.PROXY_USER)
{
WebProxy wp = new WebProxy();
Uri proxyUri;
try
{
// Create a new Uri object.
proxyUri = new Uri("http://" + Properties.Settings.Default.ProxyServer
+ ":" + Properties.Settings.Default.ProxyPort);
wp.Address = proxyUri;
wc.Proxy = wp;
}
catch (UriFormatException ufe)
{
MessageBox.Show(this,"Check Proxy configuration: " + Environment.NewLine + ufe.Message
,"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
return;
}
}
// Clear out the text box
resultsTextBox.Text = "";
resultsTextBox.Refresh();
// Have 3 goes at this if Proxy auth is requested
bool tryAgain = true;
bool connected = false;
for (int i = 0; i < 3 && tryAgain == true && connected == false; i++)
{
try
{
Uri updateUri = null;
try
{
// Create a new Uri object.
updateUri = new Uri(Properties.Settings.Default.UpdateUrl);
}
catch (UriFormatException ufe)
{
MessageBox.Show(this, "Check Update URL: " + Environment.NewLine + ufe.Message
, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
appendText("Attempting to contact update url: " + updateUri);
// Make sure that the update file hasn't been cached by a proxy
wc.Headers.Add("Cache-Control: max-age=0");
stream = wc.OpenRead(updateUri);
connected = true;
}
catch (WebException we)
{
appendText(we.Message);
tryAgain = false;
connected = false;
// If the exception was a protocol error
// and proxy authentication is required
// ask for the credentials
if (we.Status == WebExceptionStatus.ProtocolError)
{
HttpWebResponse hwe = (HttpWebResponse)we.Response;
if (hwe.StatusCode == HttpStatusCode.ProxyAuthenticationRequired)
{
String realmHeader = hwe.Headers.Get("Proxy-Authenticate");
String realm = "";
if (realmHeader != null)
realm = realmHeader.Substring(realmHeader.IndexOf("=")+1);
ProxyAuthenticationForm paf = new ProxyAuthenticationForm();
paf.setRealm(realm);
DialogResult dr = paf.ShowDialog();
if (dr == DialogResult.OK)
{
wc.Proxy.Credentials = paf.getCredentials();
tryAgain = true;
}
}
}
if (stream != null)
stream.Close();
}
}
if (connected == false)
{
if (stream != null)
stream.Close();
return;
}
StreamReader sr = new StreamReader(stream);
string line = sr.ReadLine();
appendText("Connected.");
bool foundLatestVersion = false;
bool foundUpdateUrl = false;
bool foundReleaseDate = false;
bool foundOther = false;
string latestVersion = "";
for (int i = 0; i < 3 && line != null; i++)
{
if (line.StartsWith("LatestVersion|"))
{
latestVersion = line.Substring(line.IndexOf('|') + 1);
availVersionTextBox.Text = latestVersion;
appendText("Got latest version...");
foundLatestVersion = true;
}
else if (line.StartsWith("UpdateUrl|"))
{
sfLinkLabel.Text = line.Substring(line.IndexOf('|') + 1);
urlToolTip.SetToolTip(sfLinkLabel, sfLinkLabel.Text);
appendText("Got update url...");
foundUpdateUrl = true;
}
else if (line.StartsWith("ReleaseDate|"))
{
appendText("Got release date...");
availVersionTextBox.AppendText(" - Released on " + line.Substring(line.IndexOf('|') + 1));
foundReleaseDate = true;
}
else
{
foundOther = true;
}
resultsTextBox.Refresh();
line = sr.ReadLine();
}
sr.Close();
stream.Close();
if (foundLatestVersion && foundReleaseDate && foundUpdateUrl && !foundOther)
{
appendText("Complete.");
if ( ! latestVersion.Equals( currVersionTextBox.Text) )
MessageBox.Show(this,"An updated version is available. Click on the link to download","Alert",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
}
/// <summary>
///
/// </summary>
/// <param name="uri"></param>
/// <returns></returns>
private Stream getRemoteCsvFile(Uri sessionsUri)
{
WebClient wc = new WebClient();
Stream stream = null;
// Set the proxy options
int proxyMode = Properties.Settings.Default.ProxyMode;
if (proxyMode == (int)SessionController.ProxyMode.PROXY_IE)
{
wc.Proxy = WebRequest.GetSystemWebProxy();
}
else if (proxyMode == (int)SessionController.ProxyMode.PROXY_NONE)
{
wc.Proxy = null;
}
else if (proxyMode == (int)SessionController.ProxyMode.PROXY_USER)
{
WebProxy wp = new WebProxy();
Uri proxyUri;
try
{
// Create a new Uri object.
proxyUri = new Uri("http://" + Properties.Settings.Default.ProxyServer
+ ":" + Properties.Settings.Default.ProxyPort);
wp.Address = proxyUri;
wc.Proxy = wp;
}
catch (UriFormatException ufe)
{
MessageBox.Show(null, "Check Proxy configuration: " + Environment.NewLine + ufe.Message
, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
}
// Have 3 goes at this if Proxy auth is requested
bool tryAgain = true;
bool connected = false;
for (int i = 0; i < 3 && tryAgain == true && connected == false; i++)
{
try
{
// Make sure that the file hasn't been cached by a proxy
wc.Headers.Add("Cache-Control: max-age=0");
stream = wc.OpenRead(sessionsUri);
connected = true;
}
catch (WebException we)
{
tryAgain = false;
connected = false;
// If the exception was a protocol error
// and proxy authentication is required
// ask for the credentials
if (we.Status == WebExceptionStatus.ProtocolError)
{
HttpWebResponse hwe = (HttpWebResponse)we.Response;
if (hwe.StatusCode == HttpStatusCode.ProxyAuthenticationRequired)
{
String realmHeader = hwe.Headers.Get("Proxy-Authenticate");
String realm = "";
if (realmHeader != null)
realm = realmHeader.Substring(realmHeader.IndexOf("=") + 1);
ProxyAuthenticationForm paf = new ProxyAuthenticationForm();
paf.setRealm(realm);
DialogResult dr = paf.ShowDialog();
if (dr == DialogResult.OK)
{
wc.Proxy.Credentials = paf.getCredentials();
tryAgain = true;
}
}
}
if (stream != null)
stream.Close();
}
}
if (connected == false)
{
if (stream != null)
stream.Close();
return null;
}
return stream;
}
/// <summary>
/// Event handler for the Click event for the checkForUpdateButton
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void checkForUpdateButton_Click(object sender, EventArgs e)
{
WebClient wc = new WebClient();
Stream stream = null;
// Set the proxy options
int proxyMode = Properties.Settings.Default.ProxyMode;
if (proxyMode == (int)SessionController.ProxyMode.PROXY_IE)
{
wc.Proxy = WebRequest.GetSystemWebProxy();
}
else if (proxyMode == (int)SessionController.ProxyMode.PROXY_NONE)
{
wc.Proxy = null;
}
else if (proxyMode == (int)SessionController.ProxyMode.PROXY_USER)
{
WebProxy wp = new WebProxy();
Uri proxyUri;
try
{
// Create a new Uri object.
proxyUri = new Uri("http://" + Properties.Settings.Default.ProxyServer
+ ":" + Properties.Settings.Default.ProxyPort);
wp.Address = proxyUri;
wc.Proxy = wp;
}
catch (UriFormatException ufe)
{
MessageBox.Show(this, "Check Proxy configuration: " + Environment.NewLine + ufe.Message
, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
// Clear out the text box
resultsTextBox.Text = "";
resultsTextBox.Refresh();
// Have 3 goes at this if Proxy auth is requested
bool tryAgain = true;
bool connected = false;
for (int i = 0; i < 3 && tryAgain == true && connected == false; i++)
{
try
{
Uri updateUri = null;
try
{
// Create a new Uri object.
updateUri = new Uri(Properties.Settings.Default.UpdateUrl);
}
catch (UriFormatException ufe)
{
MessageBox.Show(this, "Check Update URL: " + Environment.NewLine + ufe.Message
, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
appendText("Attempting to contact update url: " + updateUri);
// Make sure that the update file hasn't been cached by a proxy
wc.Headers.Add("Cache-Control: max-age=0");
stream = wc.OpenRead(updateUri);
connected = true;
}
catch (WebException we)
{
appendText(we.Message);
tryAgain = false;
connected = false;
// If the exception was a protocol error
// and proxy authentication is required
// ask for the credentials
if (we.Status == WebExceptionStatus.ProtocolError)
{
HttpWebResponse hwe = (HttpWebResponse)we.Response;
if (hwe.StatusCode == HttpStatusCode.ProxyAuthenticationRequired)
{
String realmHeader = hwe.Headers.Get("Proxy-Authenticate");
String realm = "";
if (realmHeader != null)
{
realm = realmHeader.Substring(realmHeader.IndexOf("=") + 1);
}
ProxyAuthenticationForm paf = new ProxyAuthenticationForm();
paf.setRealm(realm);
DialogResult dr = paf.ShowDialog();
if (dr == DialogResult.OK)
{
wc.Proxy.Credentials = paf.getCredentials();
tryAgain = true;
}
}
}
if (stream != null)
{
stream.Close();
}
}
}
if (connected == false)
{
if (stream != null)
{
stream.Close();
}
return;
}
StreamReader sr = new StreamReader(stream);
string line = sr.ReadLine();
appendText("Connected.");
bool foundLatestVersion = false;
bool foundUpdateUrl = false;
bool foundReleaseDate = false;
bool foundOther = false;
string latestVersion = "";
for (int i = 0; i < 3 && line != null; i++)
{
if (line.StartsWith("LatestVersion|"))
{
latestVersion = line.Substring(line.IndexOf('|') + 1);
availVersionTextBox.Text = latestVersion;
appendText("Got latest version...");
foundLatestVersion = true;
}
else if (line.StartsWith("UpdateUrl|"))
{
sfLinkLabel.Text = line.Substring(line.IndexOf('|') + 1);
urlToolTip.SetToolTip(sfLinkLabel, sfLinkLabel.Text);
appendText("Got update url...");
foundUpdateUrl = true;
}
else if (line.StartsWith("ReleaseDate|"))
{
appendText("Got release date...");
availVersionTextBox.AppendText(" - Released on " + line.Substring(line.IndexOf('|') + 1));
foundReleaseDate = true;
}
else
{
foundOther = true;
}
resultsTextBox.Refresh();
line = sr.ReadLine();
}
sr.Close();
stream.Close();
if (foundLatestVersion && foundReleaseDate && foundUpdateUrl && !foundOther)
{
appendText("Complete.");
if (!latestVersion.Equals(currVersionTextBox.Text))
{
MessageBox.Show(this, "An updated version is available. Click on the link to download", "Alert", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}