/// <summary>
/// Initializes the class. This includes loading application settings from the configuration file. The application name should be scoped within the system.
/// For non web applications, this method must be called directly from the main executable assembly and not from a supporting library.
///
/// To debug this method, create a folder called C:\AnyoneFullControl and give Everyone full control. A file will appear in that folder explaining how far
/// it got in init.
/// </summary>
/// <param name="appName"></param>
/// <param name="isClientSideProgram"></param>
/// <param name="systemLogic"></param>
/// <param name="mainDataAccessStateGetter">A method that returns the current main data-access state whenever it is requested, including during this
/// AppTools.Init call. Do not allow multiple threads to use the same state at the same time. If you pass null, the data-access subsystem will not be
/// available in the application.</param>
public static void Init(string appName, bool isClientSideProgram, SystemLogic systemLogic, Func <DataAccessState> mainDataAccessStateGetter = null)
{
var initializationLog = "Starting init";
try {
if (initialized)
{
throw new ApplicationException("This class can only be initialized once.");
}
if (systemLogic == null)
{
throw new ApplicationException("The system must have a global logic class and you must pass an instance of it to AppTools.Init.");
}
// Initialize ConfigurationStatics, including the general provider, before the exception handling block below because it's reasonable for the exception
// handling to depend on this.
ConfigurationStatics.Init(systemLogic.GetType(), appName, isClientSideProgram, ref initializationLog);
// Setting the initialized flag to true must be done before executing the secondary init block below so that exception handling works.
initialized = true;
initializationLog += Environment.NewLine + "Succeeded in primary init.";
}
catch (Exception e) {
initializationLog += Environment.NewLine + e;
StandardLibraryMethods.EmergencyLog("Initialization log", initializationLog);
throw;
}
try {
var asposeLicense = ConfigurationStatics.SystemGeneralProvider.AsposeLicenseName;
if (asposeLicense.Any())
{
new Aspose.Pdf.License().SetLicense(asposeLicense);
new Aspose.Words.License().SetLicense(asposeLicense);
}
// This initialization could be performed using reflection. There is no need for AppTools to have a dependency on these classes.
AppMemoryCache.Init();
BlobFileOps.Init();
DataAccessStatics.Init();
DataAccessState.Init(mainDataAccessStateGetter);
EncryptionOps.Init();
HtmlBlockStatics.Init();
InstallationSupportUtility.ConfigurationLogic.Init1();
UserManagementStatics.Init();
systemLogic.InitSystem();
}
catch (Exception e) {
secondaryInitFailed = true;
// Suppress all exceptions since they would prevent apps from knowing that primary initialization succeeded. EWF apps need to know this in order to
// automatically restart themselves. Other apps could find this knowledge useful as well.
try {
EmailAndLogError("An exception occurred during application initialization:", e);
}
catch {}
}
}
private static EmailMessage getErrorEmailMessage(string body)
{
return(new EmailMessage
{
Subject =
"Error in {0}".FormatWith(ConfigurationStatics.InstallationConfiguration.SystemName) +
(ConfigurationStatics.IsClientSideProgram ? " on {0}".FormatWith(StandardLibraryMethods.GetLocalHostName()) : ""),
BodyHtml = body.GetTextAsEncodedHtml()
});
}
/// <summary>
/// This will tell people what to look for in the tests.
/// Outputs a ReadMe file, with each iteration being a line in a item1: item2 format.
/// </summary>
internal static void OutputReadme(string outputFolder, IEnumerable <Tuple <string, string> > explanations)
{
using (var readme = new StreamWriter(StandardLibraryMethods.CombinePaths(outputFolder, "ReadMe.txt"))) {
readme.WriteLine("What to look for");
readme.WriteLine();
foreach (var explanation in explanations)
{
readme.WriteLine("{0}: {1}".FormatWith(explanation.Item1, explanation.Item2));
readme.WriteLine();
}
}
}
/// <summary>
/// Sends an error email message to the developer addresses specified in the config file using the SMTP server specified in the config file.
/// </summary>
private static void sendErrorEmail(string body)
{
assertClassInitialized();
var m = new EmailMessage();
foreach (var developer in ConfigurationStatics.InstallationConfiguration.Developers)
{
m.ToAddresses.Add(new EmailAddress(developer.EmailAddress, developer.Name));
}
m.Subject = "Error in " + ConfigurationStatics.InstallationConfiguration.SystemName;
if (ConfigurationStatics.IsClientSideProgram)
{
m.Subject += " on " + StandardLibraryMethods.GetLocalHostName();
}
m.BodyHtml = body.GetTextAsEncodedHtml();
SendEmailWithDefaultFromAddress(m);
}
public bool Equals(InitializationAwareValue <T> other)
{
return(other != null && Initialized && other.Initialized && StandardLibraryMethods.AreEqual(value, other.value));
}
/// <summary>
/// Sends an email from the default address to the developers with the given exception information and additional information about
/// the running program. Prefix provides additional information before the standard exception and page information.
/// The exception may be null.
/// </summary>
public static void EmailAndLogError(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 = 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 { sendErrorEmail(sw.ToString()); }, delegate { logError(sw.ToString()); });
}
}
public bool Equals(DataValue <T> other)
{
return(other != null && StandardLibraryMethods.AreEqual(val, other.val));
}
