/// <summary>
/// Captures synchronous and asynchronous exceptions from the pipeline and generates HTML error responses.
/// Full error details are only displayed by default if 'host.AppMode' is set to 'development' in the IAppBuilder.Properties.
/// </summary>
/// <param name="builder"></param>
/// <param name="options"></param>
/// <returns></returns>
public static IAppBuilder UseErrorPage(this IAppBuilder builder, ErrorPageOptions options)
{
if (builder == null)
{
throw new ArgumentNullException("builder");
}
string appMode = new AppProperties(builder.Properties).Get<string>(Constants.HostAppMode);
bool isDevMode = string.Equals(Constants.DevMode, appMode, StringComparison.Ordinal);
return builder.Use<ErrorPageMiddleware>(options, isDevMode);
}
/// <summary>
/// Initializes a new instance of the <see cref="ErrorPageMiddleware"/> class
/// </summary>
/// <param name="next"></param>
/// <param name="options"></param>
/// <param name="isDevMode"></param>
public ErrorPageMiddleware(OwinMiddleware next, ErrorPageOptions options, bool isDevMode)
: base(next)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
if (isDevMode)
{
options.SetDefaultVisibility(isVisible: true);
}
_options = options;
}
/// <summary>
/// Initializes a new instance of the <see cref="ErrorPageMiddleware"/> class
/// </summary>
/// <param name="next"></param>
/// <param name="options"></param>
/// <param name="isDevMode"></param>
public ErrorPageMiddleware(AppFunc next, ErrorPageOptions options, bool isDevMode)
{
if (next == null)
{
throw new ArgumentNullException("next");
}
if (options == null)
{
throw new ArgumentNullException("options");
}
if (isDevMode)
{
options.SetDefaultVisibility(isVisible: true);
}
_next = next;
_options = options;
}
/// <summary>
/// Initializes a new instance of the <see cref="ErrorPageMiddleware"/> class
/// </summary>
/// <param name="next"></param>
/// <param name="options"></param>
/// <param name="isDevMode"></param>
public ErrorPageMiddleware(AppFunc next, ErrorPageOptions options, ILogger logger, bool isDevMode)
{
if (next == null)
{
throw new ArgumentNullException("next");
}
if (options == null)
{
throw new ArgumentNullException("options");
}
if (isDevMode)
{
options.SetDefaultVisibility(isVisible: true);
}
_next = next;
_options = options;
_logger = logger;
}