File content as of revision 2:e6a185df9e4c:

/*****************************************************************************
*
*  HttpStatic.c
*  Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
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*    from this software without specific prior written permission.
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*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
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#include "HttpStatic.h"

#ifdef HTTP_CORE_ENABLE_STATIC

#include "HttpRequest.h"
#include "HttpResponse.h"
#include "HttpCore.h"
#include "FlashDB.h"

/** 
 * @addtogroup HttpStatic
 * @{
 */

/** 
 * @defgroup HttpStatic Static request handler module
 * This module implements static content processing for HTTP requests.
 * All requests are handled by looking up the URL's resource in the flash database, and returning the content in the response.
 * Note this module is only compiled if HTTP_CORE_ENABLE_STATIC is defined in HttpConfig.h
 *
 * @{
 */


struct FlashDBContent pFlashDBContent[HTTP_CORE_MAX_CONNECTIONS];

/**
 * Initialize HttpStatic module state for a new request, and identify the request
 * This function examines the specified resource string, and looks it up in the Flash Database.
 * Note: During FlashDB lookup, ignore the query part (?) and anchor part (#) of URL
 * If found, it commits to process this request by returning nonzero. Otherwise it returns zero.
 * @param uConnection The number of the connection. This value is guaranteed to satisfy: 0 <= uConnection < HTTP_CORE_MAX_CONNECTIONS
 * @param resource The resource part of the URL, as specified by the browser in the request, including any query string (and hash). 
 *                 Note: The resource string exists ONLY during the call to this function. The string pointer should not be copied by this function.
 * @return nonzero if request is to be handled by this module. zero if not.
 */
int HttpStatic_InitRequest(uint16 uConnection, struct HttpBlob resource)
{
	if (FlashDB_FindContent(resource, &pFlashDBContent[uConnection]) == 0)
		return 0;

	return 1;
}

/**
 * Process a static-content HTTP request
 * This function is called after a request was already initialized, and a FlashDB content entry was identified during a call to HttpStatic_InitRequest()
 * This function calls HttpResponse_*() to send the content data to the browser.
 * @param request Pointer to all data available about the request
 * @return nonzero if request was handled. zero if not.
 */
void HttpStatic_ProcessRequest(struct HttpRequest* request)
{
	struct HttpBlob contentType, nullBlob = {0, NULL};
	
	/*  if HTTP_REQUEST_FLAG_METHOD_POST==1 (i.e. it is POST)
		HttpResponse_CannedError() responds to client with status HTTP_STATUS_ERROR_INTERNAL
		POST method is not supported for static pages	*/
	if (request->uFlags & HTTP_REQUEST_FLAG_METHOD_POST)
	{
		 /* HttpResponse_CannedError responds to client with 500 ERROR_INTERNAL  */
   		 HttpResponse_CannedError(request->uConnection, HTTP_STATUS_ERROR_INTERNAL);
		 return;
	}

	/* if HTTP_REQUEST_FLAG_ACCEPT_GZIP is not set and FLASHDB_FLAG_COMPRESSED is set then 
			HttpResponse_CannedError() responds to client with status HTTP_STATUS_ERROR_NOT_ACCEPTED	*/
     if ((((char)(request->uFlags) & (char)HTTP_REQUEST_FLAG_ACCEPT_GZIP) == 0) && (((char)(pFlashDBContent[request->uConnection].uFlags) & (char)FLASHDB_FLAG_COMPRESSED)))
	 {
		 /* call HttpResponse_CannedError responds to client with 500 ERROR_INTERNAL  */
   		 HttpResponse_CannedError(request->uConnection, HTTP_STATUS_ERROR_NOT_ACCEPTED);
		 return;
	}
     /* if HTTP_REQUEST_FLAG_AUTHENTICATED is not set and FLASHDB_FLAG_REQUIRE_AUTH is set then 
			HttpResponse_CannedError() responds to client with status HTTP_STATUS_ERROR_UNAUTHORIZED	*/
    if (((request->uFlags & HTTP_REQUEST_FLAG_AUTHENTICATED) == 0))
    {
		 /* HttpResponse_CannedError responds to client with 500 ERROR_INTERNAL  */
   		 HttpResponse_CannedError(request->uConnection, HTTP_STATUS_ERROR_UNAUTHORIZED);
		 return;
    }

	/* if got here than it is a GET method
		HttpResponse_Headers() responds to client with status HTTP_STATUS_OK */
	FlashDB_FindContentType(pFlashDBContent[request->uConnection].uContentType, &contentType);
	HttpResponse_Headers(request->uConnection, HTTP_STATUS_OK, pFlashDBContent[request->uConnection].uFlags,  pFlashDBContent[request->uConnection].contentBlob.uLength, contentType, nullBlob);
	/* HttpResponse_Content() sends requested page to the client */
	HttpResponse_Content(request->uConnection, pFlashDBContent[request->uConnection].contentBlob);
	
}

/// @}

#endif // HTTP_CORE_ENABLE_STATIC