djErrorResponse.pas File Reference

Functions
	ResetResponse (TdjResponse Response)
	Resets a response that a Web Component or Web Filter may already have partly filled in, so that an error response can be built on a clean state.
	SetErrorResponse (TdjResponse Response, Exception E, const string ComponentName='')
	Replaces whatever a failed Web Component, Web Filter or handler left on the response with the framework's 500 error page.

Function Documentation

ResetResponse()

ResetResponse

(

TdjResponse

Response

)

Resets a response that a Web Component or Web Filter may already have partly filled in, so that an error response can be built on a clean state.

Clears the content (ContentText and ContentStream), every entity and response header field (ContentType, ContentLength, Location, ...) and CustomHeaders. Keeps the server name, the connection's keep-alive setting, and the cookies, because Indy stores a newly created session's cookie there.

Parameters

Response

the response to reset. Its headers must not have been sent yet.

SetErrorResponse()

SetErrorResponse	(	TdjResponse	Response,
		Exception	E,
		const string	ComponentName = '' )

Replaces whatever a failed Web Component, Web Filter or handler left on the response with the framework's 500 error page.

The page is generic and discloses nothing about the exception, unless DARAJA_PROJECT_STAGE_DEVELOPMENT is defined: then it shows the exception class and message, the component name, and a stack trace where available.

If the response headers were already sent (for example by a component that streams its output), the status can no longer change. The pending content is dropped and the connection is closed instead, so the client sees a truncated response rather than an error page appended to a partial body.

Parameters

Response	the response to replace
E	the exception that caused the error
ComponentName	the Web Component that was handling the request, if known; shown only on the development page