internal static void SendHealthCheckEmail(string appFullName)
{
var message = new EmailMessage();
var body = new StringBuilder();
var tenGibibytes = 10 * Math.Pow(1024, 3);
var freeSpaceIsLow = false;
foreach (var driveInfo in DriveInfo.GetDrives().Where(d => d.DriveType == DriveType.Fixed))
{
var bytesFree = driveInfo.TotalFreeSpace;
freeSpaceIsLow = freeSpaceIsLow || bytesFree < tenGibibytes;
body.AppendLine("{0} free on {1} drive.".FormatWith(FormattingMethods.GetFormattedBytes(bytesFree), driveInfo.Name));
}
message.Subject = StringTools.ConcatenateWithDelimiter(" ", "Health check", freeSpaceIsLow ? "and WARNING" : "", "from " + appFullName);
message.BodyHtml = body.ToString().GetTextAsEncodedHtml();
EmailStatics.SendDeveloperNotificationEmail(message);
}
/// <summary>
/// Reports an error to the developers. The report includes the specified exception and additional information about the running program. The prefix
/// provides additional information before the standard exception and page information.
/// </summary>
public static void ReportError(string prefix, Exception exception)
{
using (var sw = new StringWriter()) {
if (prefix.Length > 0)
{
sw.WriteLine(prefix);
sw.WriteLine();
}
if (exception != null)
{
sw.WriteLine(exception.ToString());
sw.WriteLine();
}
sw.WriteLine("Application: {0}".FormatWith(ConfigurationStatics.AppName));
sw.WriteLine("Version: {0}".FormatWith(ConfigurationStatics.AppAssembly.GetName().Version));
if (!ConfigurationStatics.IsDevelopmentInstallation)
{
sw.WriteLine();
sw.WriteLine("Installation: {0}".FormatWith(ConfigurationStatics.InstallationConfiguration.InstallationName));
sw.WriteLine("Machine: {0}".FormatWith(Tewl.Tools.NetTools.GetLocalHostName()));
}
if (NetTools.IsWebApp())
{
// This check ensures that there is an actual request, which is not the case during application initialization.
if (EwfApp.Instance != null && EwfApp.Instance.RequestState != null)
{
sw.WriteLine();
sw.WriteLine("URL: " + AppRequestState.Instance.Url);
sw.WriteLine();
foreach (string fieldName in HttpContext.Current.Request.Form)
{
sw.WriteLine("Form field " + fieldName + ": " + HttpContext.Current.Request.Form[fieldName]);
}
sw.WriteLine();
foreach (string cookieName in HttpContext.Current.Request.Cookies)
{
sw.WriteLine("Cookie " + cookieName + ": " + HttpContext.Current.Request.Cookies[cookieName].Value);
}
sw.WriteLine();
sw.WriteLine("User agent: " + HttpContext.Current.Request.GetUserAgent());
sw.WriteLine("Referrer: " + NetTools.ReferringUrl);
User user = null;
User impersonator = null;
// exception-prone code
try {
user = AppTools.User;
impersonator = AppRequestState.Instance.ImpersonatorExists ? AppRequestState.Instance.ImpersonatorUser : null;
}
catch {}
if (user != null)
{
sw.WriteLine("User: {0}{1}".FormatWith(user.Email, impersonator != null ? " (impersonated by {0})".FormatWith(impersonator.Email) : ""));
}
}
}
EwlStatics.CallEveryMethod(
() => {
lock ( errorEmailLimiter ) {
errorEmailLimiter.RequestAction(
() => EmailStatics.SendDeveloperNotificationEmail(getErrorEmailMessage(sw.ToString())),
() => SendDeveloperNotification(
"An error occurred and the email rate-limit was reached! See the log file for this and any other errors that may occur in the near future."),
() => {});
}
},
() => logError(sw.ToString()));
}
}
/// <summary>
/// Reports a fault (a problem that could later cause errors) to the developers.
/// </summary>
public static void ReportFault(string message)
{
EmailStatics.SendDeveloperNotificationEmail(getFaultEmailMessage(message));
}
/// <summary>
/// Sends a notification to the developers. Do not use for anything that requires corrective action.
/// </summary>
public static void SendDeveloperNotification(string message)
{
EmailStatics.SendDeveloperNotificationEmail(getNotificationEmailMessage(message));
}
/// <summary>
/// Reports an error to the developers. The report includes the specified exception and additional information about the running program. The prefix
/// provides additional information before the standard exception and page information.
/// </summary>
public static void ReportError(string prefix, Exception exception)
{
using (var sw = new StringWriter()) {
if (prefix.Length > 0)
{
sw.WriteLine(prefix);
sw.WriteLine();
}
if (exception != null)
{
sw.WriteLine(exception.ToString());
sw.WriteLine();
}
if (NetTools.IsWebApp())
{
// This check ensures that there is an actual request, which is not the case during application initialization.
if (EwfApp.Instance != null && EwfApp.Instance.RequestState != null)
{
sw.WriteLine("URL: " + AppRequestState.Instance.Url);
sw.WriteLine();
foreach (string fieldName in HttpContext.Current.Request.Form)
{
sw.WriteLine("Form field " + fieldName + ": " + HttpContext.Current.Request.Form[fieldName]);
}
sw.WriteLine();
foreach (string cookieName in HttpContext.Current.Request.Cookies)
{
sw.WriteLine("Cookie " + cookieName + ": " + HttpContext.Current.Request.Cookies[cookieName].Value);
}
sw.WriteLine();
sw.WriteLine("User agent: " + HttpContext.Current.Request.GetUserAgent());
sw.WriteLine("Referrer: " + NetTools.ReferringUrl);
User user = null;
User impersonator = null;
// exception-prone code
try {
user = AppTools.User;
impersonator = AppRequestState.Instance.ImpersonatorExists ? AppRequestState.Instance.ImpersonatorUser : null;
}
catch {}
if (user != null)
{
sw.WriteLine("User: {0}{1}".FormatWith(user.Email, impersonator != null ? " (impersonated by {0})".FormatWith(impersonator.Email) : ""));
}
}
}
else
{
sw.WriteLine("Program: " + ConfigurationStatics.AppName);
sw.WriteLine("Version: " + ConfigurationStatics.AppAssembly.GetName().Version);
sw.WriteLine("Machine: " + StandardLibraryMethods.GetLocalHostName());
}
StandardLibraryMethods.CallEveryMethod(
delegate { EmailStatics.SendDeveloperNotificationEmail(getErrorEmailMessage(sw.ToString())); },
delegate { logError(sw.ToString()); });
}
}
