Diff: http/server/HttpDynamic.cpp

Revision:

0:400d8e75a8d0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/http/server/HttpDynamic.cpp	Sun Sep 06 15:19:36 2015 +0000
@@ -0,0 +1,131 @@
+//*****************************************************************************
+// Copyright (C) 2014 Texas Instruments Incorporated
+//
+// All rights reserved. Property of Texas Instruments Incorporated.
+// Restricted rights to use, duplicate or disclose this code are
+// granted through contract.
+// The program may not be used without the written permission of
+// Texas Instruments Incorporated or against the terms and conditions
+// stipulated in the agreement under which this program has been supplied,
+// and under no circumstances can it be used with non-TI connectivity device.
+//
+//*****************************************************************************
+
+/**
+ * @addtogroup HttpDynamic
+ * @{
+ */
+
+#include "HttpDynamic.h"
+#include "HttpRequest.h"
+#include "HttpResponse.h"
+#include "HttpCore.h"
+#include "string.h"
+
+#ifdef HTTP_CORE_ENABLE_DYNAMIC
+
+/**
+ * @defgroup HttpDynamic Dynamic request handler module
+ * This module implements dynamic content processing for HTTP requests.
+ * All requests are handled by C code functions, and the response contents is returned via HttpResopnse routines
+ * Note this module is only compiled if HTTP_CORE_ENABLE_DYNAMIC is defined in HttpConfig.h
+ *
+ * @{
+ */
+
+Resource g_RestContent[MAX_RESOURCE];
+
+int g_NumResource = 0;
+
+int SetResources(unsigned char method, char* pBuf, unsigned char* (*pCbRestFunc)(void *pArgs) )
+{
+
+	// POST is 0 and GET is 1
+
+	if(g_NumResource < MAX_RESOURCE)
+	{
+		g_RestContent[g_NumResource].rest_method = method;
+		g_RestContent[g_NumResource].ResourceString = (unsigned char*)pBuf;
+		g_RestContent[g_NumResource].pCbfunc = pCbRestFunc;
+		g_NumResource++;
+	}
+	else
+		return 0;
+
+	return 1;
+
+}
+
+/**
+ * Initialize HttpDynamic module state for a new request, and identify the request
+ * This function must examine the specified resource string and determine whether it can commit to process this request
+ * If this function returns nonzero, then the core will call HttpDynamic_ProcessRequest() with the rest of the request details.
+ * @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.
+ * @param method The HTTP method sent from the client for the resource
+ * @return nonzero if request is to be handled by this module. zero if not.
+ */
+int HttpDynamic_InitRequest(UINT16 uConnection, struct HttpBlob resource, UINT8 method)
+{
+
+	/* look for known resource names according to g_RestContent*/
+	for (g_NumResource = 0; g_NumResource < MAX_RESOURCE; g_NumResource++)
+	{
+		if (HttpString_nextToken((char*)g_RestContent[g_NumResource].ResourceString,  strlen((const char*)g_RestContent[g_NumResource].ResourceString), resource) != NULL)
+			break;
+	}
+
+	/* Rest resource not found */
+	if (g_NumResource == MAX_RESOURCE)
+		return 0;
+
+	/* Method doesn't match */
+	if(g_RestContent[g_NumResource].rest_method != method)
+		return 0;
+
+
+	return 1;
+}
+
+/**
+ * Process a dynamic-content HTTP request
+ * This function is only be called by the core, if HttpDynamic_InitRequest() returns nonzero.
+ * This function processes the specified HTTP request, and send the response on the connection specified by request->uConnection.
+ * This function must call the HttpResponse_*() functions in order to send data back to the browser.
+ * Please refer to HttpResponse.h for more information.
+ * @param request Pointer to all data available about the request
+ */
+int HttpDynamic_ProcessRequest(struct HttpRequest* request)
+{
+	struct HttpBlob contentType,nullBlob;
+	struct HttpBlob contentBody;
+	void *pArgs = NULL;
+
+	contentType.pData = NULL;
+	contentType.uLength = 0;
+	nullBlob = contentType;
+
+	/* 1. Call user defined API */
+	contentBody.pData = g_RestContent[g_NumResource].pCbfunc(pArgs);
+	contentBody.uLength = strlen((const char*)contentBody.pData);
+
+	/* 2. Set header for HTTP Response */
+	if(!HttpResponse_Headers(request->uConnection, (UINT16)HTTP_STATUS_OK, 0, contentBody.uLength, contentType, nullBlob))
+		return 0;
+
+	/* 3. fill the content response (if exists) */
+	if (contentBody.uLength != 0)
+	{
+		if(!HttpResponse_Content(request->uConnection, contentBody))
+			return 0;
+	}
+
+	return 1;
+}
+
+
+/// @}
+
+#endif // HTTP_CORE_ENABLE_DYNAMIC
+