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Dependencies:   mbed

http/server/HttpDynamic.cpp@0:50cedd586816, 2015-06-24 (annotated)

Committer:
dflet
Date:
Wed Jun 24 09:54:16 2015 +0000
Revision:
0:50cedd586816
First commit work in progress

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dflet 0:50cedd586816 1 //*****************************************************************************
dflet 0:50cedd586816 2 // Copyright (C) 2014 Texas Instruments Incorporated
dflet 0:50cedd586816 3 //
dflet 0:50cedd586816 4 // All rights reserved. Property of Texas Instruments Incorporated.
dflet 0:50cedd586816 5 // Restricted rights to use, duplicate or disclose this code are
dflet 0:50cedd586816 6 // granted through contract.
dflet 0:50cedd586816 7 // The program may not be used without the written permission of
dflet 0:50cedd586816 8 // Texas Instruments Incorporated or against the terms and conditions
dflet 0:50cedd586816 9 // stipulated in the agreement under which this program has been supplied,
dflet 0:50cedd586816 10 // and under no circumstances can it be used with non-TI connectivity device.
dflet 0:50cedd586816 11 //
dflet 0:50cedd586816 12 //*****************************************************************************
dflet 0:50cedd586816 13
dflet 0:50cedd586816 14 /**
dflet 0:50cedd586816 15 * @addtogroup HttpDynamic
dflet 0:50cedd586816 16 * @{
dflet 0:50cedd586816 17 */
dflet 0:50cedd586816 18
dflet 0:50cedd586816 19 #include "HttpDynamic.h"
dflet 0:50cedd586816 20 #include "HttpRequest.h"
dflet 0:50cedd586816 21 #include "HttpResponse.h"
dflet 0:50cedd586816 22 #include "HttpCore.h"
dflet 0:50cedd586816 23 #include "string.h"
dflet 0:50cedd586816 24
dflet 0:50cedd586816 25 #ifdef HTTP_CORE_ENABLE_DYNAMIC
dflet 0:50cedd586816 26
dflet 0:50cedd586816 27 /**
dflet 0:50cedd586816 28 * @defgroup HttpDynamic Dynamic request handler module
dflet 0:50cedd586816 29 * This module implements dynamic content processing for HTTP requests.
dflet 0:50cedd586816 30 * All requests are handled by C code functions, and the response contents is returned via HttpResopnse routines
dflet 0:50cedd586816 31 * Note this module is only compiled if HTTP_CORE_ENABLE_DYNAMIC is defined in HttpConfig.h
dflet 0:50cedd586816 32 *
dflet 0:50cedd586816 33 * @{
dflet 0:50cedd586816 34 */
dflet 0:50cedd586816 35
dflet 0:50cedd586816 36 Resource g_RestContent[MAX_RESOURCE];
dflet 0:50cedd586816 37
dflet 0:50cedd586816 38 int g_NumResource = 0;
dflet 0:50cedd586816 39
dflet 0:50cedd586816 40 int SetResources(unsigned char method, char* pBuf, unsigned char* (*pCbRestFunc)(void *pArgs) )
dflet 0:50cedd586816 41 {
dflet 0:50cedd586816 42
dflet 0:50cedd586816 43 // POST is 0 and GET is 1
dflet 0:50cedd586816 44
dflet 0:50cedd586816 45 if(g_NumResource < MAX_RESOURCE)
dflet 0:50cedd586816 46 {
dflet 0:50cedd586816 47 g_RestContent[g_NumResource].rest_method = method;
dflet 0:50cedd586816 48 g_RestContent[g_NumResource].ResourceString = (unsigned char*)pBuf;
dflet 0:50cedd586816 49 g_RestContent[g_NumResource].pCbfunc = pCbRestFunc;
dflet 0:50cedd586816 50 g_NumResource++;
dflet 0:50cedd586816 51 }
dflet 0:50cedd586816 52 else
dflet 0:50cedd586816 53 return 0;
dflet 0:50cedd586816 54
dflet 0:50cedd586816 55 return 1;
dflet 0:50cedd586816 56
dflet 0:50cedd586816 57 }
dflet 0:50cedd586816 58
dflet 0:50cedd586816 59 /**
dflet 0:50cedd586816 60 * Initialize HttpDynamic module state for a new request, and identify the request
dflet 0:50cedd586816 61 * This function must examine the specified resource string and determine whether it can commit to process this request
dflet 0:50cedd586816 62 * If this function returns nonzero, then the core will call HttpDynamic_ProcessRequest() with the rest of the request details.
dflet 0:50cedd586816 63 * @param uConnection The number of the connection. This value is guaranteed to satisfy: 0 <= uConnection < HTTP_CORE_MAX_CONNECTIONS
dflet 0:50cedd586816 64 * @param resource The resource part of the URL, as specified by the browser in the request, including any query string (and hash)
dflet 0:50cedd586816 65 * Note: The resource string exists ONLY during the call to this function. The string pointer should not be copied by this function.
dflet 0:50cedd586816 66 * @param method The HTTP method sent from the client for the resource
dflet 0:50cedd586816 67 * @return nonzero if request is to be handled by this module. zero if not.
dflet 0:50cedd586816 68 */
dflet 0:50cedd586816 69 int HttpDynamic_InitRequest(UINT16 uConnection, struct HttpBlob resource, UINT8 method)
dflet 0:50cedd586816 70 {
dflet 0:50cedd586816 71
dflet 0:50cedd586816 72 /* look for known resource names according to g_RestContent*/
dflet 0:50cedd586816 73 for (g_NumResource = 0; g_NumResource < MAX_RESOURCE; g_NumResource++)
dflet 0:50cedd586816 74 {
dflet 0:50cedd586816 75 if (HttpString_nextToken((char*)g_RestContent[g_NumResource].ResourceString, strlen((const char*)g_RestContent[g_NumResource].ResourceString), resource) != NULL)
dflet 0:50cedd586816 76 break;
dflet 0:50cedd586816 77 }
dflet 0:50cedd586816 78
dflet 0:50cedd586816 79 /* Rest resource not found */
dflet 0:50cedd586816 80 if (g_NumResource == MAX_RESOURCE)
dflet 0:50cedd586816 81 return 0;
dflet 0:50cedd586816 82
dflet 0:50cedd586816 83 /* Method doesn't match */
dflet 0:50cedd586816 84 if(g_RestContent[g_NumResource].rest_method != method)
dflet 0:50cedd586816 85 return 0;
dflet 0:50cedd586816 86
dflet 0:50cedd586816 87
dflet 0:50cedd586816 88 return 1;
dflet 0:50cedd586816 89 }
dflet 0:50cedd586816 90
dflet 0:50cedd586816 91 /**
dflet 0:50cedd586816 92 * Process a dynamic-content HTTP request
dflet 0:50cedd586816 93 * This function is only be called by the core, if HttpDynamic_InitRequest() returns nonzero.
dflet 0:50cedd586816 94 * This function processes the specified HTTP request, and send the response on the connection specified by request->uConnection.
dflet 0:50cedd586816 95 * This function must call the HttpResponse_*() functions in order to send data back to the browser.
dflet 0:50cedd586816 96 * Please refer to HttpResponse.h for more information.
dflet 0:50cedd586816 97 * @param request Pointer to all data available about the request
dflet 0:50cedd586816 98 */
dflet 0:50cedd586816 99 int HttpDynamic_ProcessRequest(struct HttpRequest* request)
dflet 0:50cedd586816 100 {
dflet 0:50cedd586816 101 struct HttpBlob contentType,nullBlob;
dflet 0:50cedd586816 102 struct HttpBlob contentBody;
dflet 0:50cedd586816 103 void *pArgs = NULL;
dflet 0:50cedd586816 104
dflet 0:50cedd586816 105 contentType.pData = NULL;
dflet 0:50cedd586816 106 contentType.uLength = 0;
dflet 0:50cedd586816 107 nullBlob = contentType;
dflet 0:50cedd586816 108
dflet 0:50cedd586816 109 /* 1. Call user defined API */
dflet 0:50cedd586816 110 contentBody.pData = g_RestContent[g_NumResource].pCbfunc(pArgs);
dflet 0:50cedd586816 111 contentBody.uLength = strlen((const char*)contentBody.pData);
dflet 0:50cedd586816 112
dflet 0:50cedd586816 113 /* 2. Set header for HTTP Response */
dflet 0:50cedd586816 114 if(!HttpResponse_Headers(request->uConnection, (UINT16)HTTP_STATUS_OK, 0, contentBody.uLength, contentType, nullBlob))
dflet 0:50cedd586816 115 return 0;
dflet 0:50cedd586816 116
dflet 0:50cedd586816 117 /* 3. fill the content response (if exists) */
dflet 0:50cedd586816 118 if (contentBody.uLength != 0)
dflet 0:50cedd586816 119 {
dflet 0:50cedd586816 120 if(!HttpResponse_Content(request->uConnection, contentBody))
dflet 0:50cedd586816 121 return 0;
dflet 0:50cedd586816 122 }
dflet 0:50cedd586816 123
dflet 0:50cedd586816 124 return 1;
dflet 0:50cedd586816 125 }
dflet 0:50cedd586816 126
dflet 0:50cedd586816 127
dflet 0:50cedd586816 128 /// @}
dflet 0:50cedd586816 129
dflet 0:50cedd586816 130 #endif // HTTP_CORE_ENABLE_DYNAMIC
dflet 0:50cedd586816 131