private void m_btnMiniMessageBox_Click(object sender, EventArgs e)
{
DialogResult result = DialogResult.None;
var lt = _tests[(_index++) % _tests.Length];
if (lt.IsModal == false && lt.Caption == null && lt.Message == null && lt.Icon == 0 && lt.Buttons == 0)
{
result = MiniMessageBox.Hide();
}
else if (lt.IsModal == false)
{
MiniMessageBox.Show(lt.Owner, lt.Message, lt.Caption, lt.Buttons, lt.Icon);
}
else
{
MiniMessageBox.MsgBoxColors myColors = null;
if (lt.MmColors != null)
{
myColors = MiniMessageBox.Colors.Backup();
MiniMessageBox.Colors.Restore(lt.MmColors);
}
result = MiniMessageBox.ShowDialog(lt.Owner, lt.Message, lt.Caption, lt.Buttons, lt.Icon);
if (myColors != null)
{
MiniMessageBox.Colors.Restore(myColors);
}
}
m_lblPopupStatus.Text = "MiniMessageBox Result = " + result;
}
private void m_grid_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
if (m_grid.Columns[nameof(m_gridcolName)].Index != e.ColumnIndex)
{
return;
}
var newName = e.FormattedValue.ToString();
if (KnownSeverities.Any(m => m.EqualsI(newName)))
{
MiniMessageBox.ShowDialog(m_grid, "Illegal Switch Name. Name cannot be the same as a trace level.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
e.Cancel = true;
return;
}
foreach (DataGridViewRow row in m_grid.Rows)
{
if (row.Index == e.RowIndex)
{
continue;
}
var name = row.Cells[nameof(m_gridcolName)].Value?.ToString();
if (name.EqualsI(newName))
{
MiniMessageBox.ShowDialog(m_grid, "Duplicate Switch Name", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
e.Cancel = true;
return;
}
}
}
private void m_btnOK_Click(object sender, EventArgs e)
{
if (m_lvListeners.SelectedItems.Count == 0)
{
MiniMessageBox.ShowDialog(this, "No listener selected.", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
this.DialogResult = DialogResult.OK;
}
private void removeToolStripMenuItem_Click(object sender, EventArgs e)
{
if (m_lvListeners.SelectedItems.Count > 0)
{
var item = m_lvListeners.SelectedItems[0];
if (MiniMessageBox.ShowDialog(m_lvListeners, $"Are you sure you want to remove {item.Name} ({((IListener)item.Tag).Type.Name})?", "Remove Listener", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
m_lvListeners.Items.Remove(item);
OnListenerListChanged();
}
}
}
private ListViewItem AddListViewItem(SourceItem props)
{
const string toolTipText = "Source {0} is a special built-in source that copies these messages\r\nto a log. As there is no mechanism to to set severity for these sources,\r\nthere are no severity levels, logging is either On (All) or Off.";
var item = new ListViewItem(props.Name);
item.Name = props.Name;
item.Tag = props;
if (SpecialSources.Any(m => m.EqualsI(props.Name)))
{
item.ToolTipText = string.Format(toolTipText, props.Name);
}
props.NamePropertyChanging += (s, e) =>
{
if (m_lvSources.Items.Cast <ListViewItem>().Any(m => m.Text.EqualsI(e.NewValue)))
{
MiniMessageBox.ShowDialog(m_cmbName, "Duplicate Source Name", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
e.Cancel = true;
//Callstack to this point:
// m_cmbName.TextUpdate => props.Name => props.NamePropertyChanging
// m_cmbName.SelectedValueChanged => props.Name => props.NamePropertyChanging
m_cmbName.Text = e.CurrentValue; //This works when the source is from TextUpdate, but not from SelectedValueChanged.
//To revert from SelectedValueChanged we need to update AFTER the event. Not within it. For TextUpdate this is merely redundent.
System.Threading.ThreadPool.QueueUserWorkItem((arg) =>
{
System.Threading.Thread.Sleep(5);
m_cmbName.BeginInvoke(new Action(() => { m_cmbName.Text = e.CurrentValue; }));
});
return;
}
if (SpecialSources.Any(m => m.EqualsI(e.NewValue)))
{
item.ToolTipText = string.Format(toolTipText, e.NewValue);
}
else
{
item.ToolTipText = "";
}
item.Text = e.NewValue;
};
m_lvSources.Items.Add(item);
return(item);
}
private void removeToolStripMenuItem_Click(object sender, EventArgs e)
{
if (m_lvSources.SelectedItems.Count > 0)
{
var item = m_lvSources.SelectedItems[0];
if (MiniMessageBox.ShowDialog(m_lvSources, $"Are you sure you want to remove {item.Name}?", "Remove Source", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
m_cmbName.Tag = null;
m_cmbName.Text = "";
m_cmbSourceLevel.Text = "";
m_lvSources.Items.Remove(item);
if (m_lvSources.Items.Count > 0)
{
var firstItem = m_lvSources.Items[0];
firstItem.Selected = true;
firstItem.Focused = true;
}
}
}
}
/// <summary>
/// Download a URL item into a local file.
/// Due to network or server glitches or delays, this will try 3 times before giving up.
/// Will not throw an exception. Errors are written to Logger.
/// </summary>
/// <param name="data">Job to download (url and suggested destination filename)</param>
/// <returns>True if successfully downloaded</returns>
public static DownloadState Download(Job data)
{
#region Initialize Static Variables
const string UserAgent = @"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:83.0) Gecko/20100101 Firefox/83.0"; //DO NOT include "User-Agent: " prefix!
Func <string, string, string> GetDefaultExtension = (mimeType, defalt) =>
{
if (mimeType.IsNullOrEmpty())
{
return(defalt);
}
mimeType = mimeType.Split(';')[0].Trim();
try { return(Registry.GetValue(@"HKEY_CLASSES_ROOT\MIME\Database\Content Type\" + mimeType, "Extension", string.Empty).ToString()); }
catch { }
return(defalt);
};
if (ResolvedHosts == null)
{
ResolvedHosts = new HashSet <string>(); //for name resolution or connection failure to determine if we should retry the download
//Fix for exception: The request was aborted: Could not create SSL/TLS secure channel
//https://stackoverflow.com/questions/10822509/the-request-was-aborted-could-not-create-ssl-tls-secure-channel
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls | SecurityProtocolType.Ssl3;
ServicePointManager.ServerCertificateValidationCallback = delegate { return(true); }; //Skip validation of SSL/TLS certificate
}
#endregion
Uri uri = new Uri(data.Url);
data.Retries++;
try
{
string ext = Path.GetExtension(data.Filename);
string mimetype = null;
DateTime lastModified;
//HACK: Empirically required for httpś://m.media-amazon.com/images/ poster images.
if (uri.Host.EndsWith("amazon.com", StringComparison.OrdinalIgnoreCase))
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
}
else
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls | SecurityProtocolType.Ssl3;
}
using (var web = new MyWebClient())
{
web.Headers[HttpRequestHeader.UserAgent] = UserAgent;
if (!data.Referer.IsNullOrEmpty())
{
web.Headers[HttpRequestHeader.Referer] = data.Referer;
}
if (!data.Cookie.IsNullOrEmpty())
{
web.Headers[HttpRequestHeader.Cookie] = data.Cookie;
}
data.Filename = FileEx.GetUniqueFilename(data.Filename); //creates empty file as placeholder
//Diagnostics.WriteLine("{0} ==> {1}\r\n", data.Url, Path.GetFileName(data.Filename));
web.DownloadFile(data.Url, data.Filename);
data.Url = web.ResponseUrl; //update url to what the Web server thinks it is.
string cookie = web.ResponseHeaders[HttpResponseHeader.SetCookie];
if (!cookie.IsNullOrEmpty())
{
data.Cookie = cookie;
}
if (!DateTime.TryParse(web.ResponseHeaders[HttpResponseHeader.LastModified] ?? string.Empty, out lastModified))
{
lastModified = DateTime.Now;
}
mimetype = web.ResponseHeaders[HttpResponseHeader.ContentType];
}
ResolvedHosts.Add(uri.Host); //for NameResolutionFailure handler statement.
if (!File.Exists(data.Filename))
{
throw new FileNotFoundException("File missing or truncated.");
}
//if (data.Retries < 1) return true; //do not validate. we want this file, always.
if (new FileInfo(data.Filename).Length < 8)
{
File.Delete(data.Filename); return(DownloadState.EmptyFile);
}
//Interlocked.Increment(ref mediaDownloaded); //mediaDownloaded++;
File.SetCreationTime(data.Filename, lastModified);
File.SetLastAccessTime(data.Filename, lastModified);
File.SetLastWriteTime(data.Filename, lastModified);
ext = GetDefaultExtension(mimetype, ext);
if (ext == ".html")
{
ext = ".htm";
}
if (ext == ".jfif")
{
ext = ".jpg";
}
if (!ext.EqualsI(Path.GetExtension(data.Filename)))
{
var newfilename = Path.ChangeExtension(data.Filename, ext);
newfilename = FileEx.GetUniqueFilename(newfilename); //creates empty file as placeholder
File.Delete(newfilename); //delete the placeholder. Move will throw exception if it already exists
File.Move(data.Filename, newfilename);
data.Filename = newfilename;
}
return(DownloadState.Success);
}
catch (Exception ex)
{
File.Delete(data.Filename);
if (ex is ThreadAbortException)
{
return(DownloadState.ThreadAbort);
}
#region Handle Disk-full error
const int ERROR_HANDLE_DISK_FULL = 0x27;
const int ERROR_DISK_FULL = 0x70;
int hResult = ex.HResult & 0xFFFF;
if (hResult == ERROR_HANDLE_DISK_FULL || hResult == ERROR_DISK_FULL) //There is not enough space on the disk.
{
LogWrite(TraceEventType.Critical, "<<<<<<< Disk Full >>>>>>>");
return(DownloadState.DiskFull);
}
#endregion Handle Disk-full error
#region Log Error and Maybe Retry Download
HttpStatusCode responseStatus = (HttpStatusCode)0;
WebExceptionStatus status = WebExceptionStatus.Success;
if (ex is WebException)
{
WebException we = (WebException)ex;
HttpWebResponse response = we.Response as System.Net.HttpWebResponse;
responseStatus = (response == null ? (HttpStatusCode)0 : response.StatusCode);
status = we.Status;
}
if ((data.Retries < 1 || data.Retries > 3) ||
responseStatus == HttpStatusCode.Forbidden || //403
responseStatus == HttpStatusCode.NotFound || //404
responseStatus == HttpStatusCode.Gone || //410
//responseStatus == HttpStatusCode.InternalServerError || //500
((status == WebExceptionStatus.NameResolutionFailure || status == WebExceptionStatus.ConnectFailure) && !ResolvedHosts.Contains(uri.Host)) ||
ex.Message.Contains("URI formats are not supported"))
{
LogWrite(TraceEventType.Error, $"{data.Url} ==> {Path.GetFileName(data.Filename)}: {ex.Message}");
return(DownloadState.NotFound);
}
if (status == WebExceptionStatus.NameResolutionFailure || status == WebExceptionStatus.ConnectFailure)
{
if (MiniMessageBox.ShowDialog(null, "Network Connection Dropped.", "Name Resolution Failure", MessageBoxButtons.RetryCancel, MessageBoxIcon.Error) == DialogResult.Cancel)
{
return(DownloadState.NetworkConnectionFailure);
}
}
LogWrite(TraceEventType.Warning, $"Retry #{data.Retries}: {data.Url} ==> {Path.GetFileName(data.Filename)}: {ex.Message}");
return(Download(data)); //try again
#endregion Log Error and Maybe Retry Download
}
}
