WIZnet / httpServer

httpServer example program for WIZwiki-W7500 Only LED control

Dependents:   httpServer-WIZwiki-W7500

This library is for HTTP server.

Refer to Example program(https://developer.mbed.org/teams/WIZnet/code/httpServer-WIZwiki-W7500/)

HTTPRequestHandler.cpp@1:772534e3b627, 2015-06-30 (annotated)

Committer:
hjjeon
Date:
Tue Jun 30 00:21:41 2015 +0000
Revision:
1:772534e3b627
Parent:
0:e59cc54df17c 
Change timeout value and set non blocking

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hjjeon 0:e59cc54df17c 1 /* HTTPRequestHandler.cpp */
hjjeon 0:e59cc54df17c 2 #include "mbed.h"
hjjeon 0:e59cc54df17c 3 #include "HTTPRequestHandler.h"
hjjeon 0:e59cc54df17c 4 //#define DEBUG
hjjeon 0:e59cc54df17c 5 #include "hl_debug.h"
hjjeon 0:e59cc54df17c 6 #include <ctype.h>
hjjeon 0:e59cc54df17c 7
hjjeon 0:e59cc54df17c 8
hjjeon 0:e59cc54df17c 9 static char buffer[128];
hjjeon 0:e59cc54df17c 10
hjjeon 0:e59cc54df17c 11
hjjeon 0:e59cc54df17c 12 const char hdrStandard[] = "DNT: 1\r\n"
hjjeon 0:e59cc54df17c 13 "MaxAge: 0\r\n"
hjjeon 0:e59cc54df17c 14 "Connection: Keep-Alive\r\n"
hjjeon 0:e59cc54df17c 15 "Content-Type: text/html\r\n"
hjjeon 0:e59cc54df17c 16 "Server: mbed embedded\r\n"
hjjeon 0:e59cc54df17c 17 "Accessible: 1\r\n"
hjjeon 0:e59cc54df17c 18 "\r\n";
hjjeon 0:e59cc54df17c 19
hjjeon 0:e59cc54df17c 20
hjjeon 0:e59cc54df17c 21 static int _stricmp(const char* a, const char* b)
hjjeon 0:e59cc54df17c 22 {
hjjeon 0:e59cc54df17c 23 int la = strlen(a);
hjjeon 0:e59cc54df17c 24 int lb = strlen(b);
hjjeon 0:e59cc54df17c 25 for (int i = 0 ; i < min(la, lb) ; i++) {
hjjeon 0:e59cc54df17c 26 if (tolower((int)a[i]) != tolower((int)b[i]))
hjjeon 0:e59cc54df17c 27 return i;
hjjeon 0:e59cc54df17c 28 }
hjjeon 0:e59cc54df17c 29 return 0;
hjjeon 0:e59cc54df17c 30 }
hjjeon 0:e59cc54df17c 31
hjjeon 0:e59cc54df17c 32
hjjeon 0:e59cc54df17c 33 static const struct mapping_t {
hjjeon 0:e59cc54df17c 34 const char* key;
hjjeon 0:e59cc54df17c 35 const char* value;
hjjeon 0:e59cc54df17c 36 } fileTypeMapping[] = {
hjjeon 0:e59cc54df17c 37 {".gif", "Content-Type: image/gif\r\n" },
hjjeon 0:e59cc54df17c 38 {".jpg", "Content-Type: image/jpeg\r\n" },
hjjeon 0:e59cc54df17c 39 {".jpeg","Content-Type: image/jpeg\r\n" },
hjjeon 0:e59cc54df17c 40 {".ico", "Content-Type: image/x-icon\r\n"},
hjjeon 0:e59cc54df17c 41 {".png", "Content-Type: image/png\r\n" },
hjjeon 0:e59cc54df17c 42 {".zip", "Content-Type: image/zip\r\n" },
hjjeon 0:e59cc54df17c 43 {".gz", "Content-Type: image/gz\r\n" },
hjjeon 0:e59cc54df17c 44 {".tar", "Content-Type: image/tar\r\n" },
hjjeon 0:e59cc54df17c 45 {".txt", "Content-Type: plain/text\r\n" },
hjjeon 0:e59cc54df17c 46 {".pdf", "Content-Type: application/pdf\r\n" },
hjjeon 0:e59cc54df17c 47 {".htm", "Content-Type: text/html\r\n" },
hjjeon 0:e59cc54df17c 48 {".html","Content-Type: text/html\r\n" },
hjjeon 0:e59cc54df17c 49 {".css", "Content-Type: text/css\r\n" },
hjjeon 0:e59cc54df17c 50 {".js", "Content-Type: text/javascript\r\n"}};
hjjeon 0:e59cc54df17c 51
hjjeon 0:e59cc54df17c 52 HTTPRequestHandler::HTTPRequestHandler(HTTPConnection::HTTPMessage& Msg, TCPSocketConnection& Tcp)
hjjeon 0:e59cc54df17c 53 : msg(Msg), tcp(Tcp)
hjjeon 0:e59cc54df17c 54 {
hjjeon 0:e59cc54df17c 55 msg = Msg;
hjjeon 0:e59cc54df17c 56 tcp = Tcp;
hjjeon 0:e59cc54df17c 57
hjjeon 0:e59cc54df17c 58 }
hjjeon 0:e59cc54df17c 59
hjjeon 0:e59cc54df17c 60 HTTPRequestHandler::~HTTPRequestHandler()
hjjeon 0:e59cc54df17c 61 {
hjjeon 0:e59cc54df17c 62 }
hjjeon 0:e59cc54df17c 63
hjjeon 0:e59cc54df17c 64 void HTTPRequestHandler::getStandardHeaders(HTTPHeaders& header, const char* fext)
hjjeon 0:e59cc54df17c 65 {
hjjeon 0:e59cc54df17c 66 header.clear();
hjjeon 0:e59cc54df17c 67 header["DNT"] = "1";
hjjeon 0:e59cc54df17c 68 header["MaxAge"] = "0";
hjjeon 0:e59cc54df17c 69 header["Connection"] = "Keep-Alive";
hjjeon 0:e59cc54df17c 70 header["Server"] = "mbed Embedded";
hjjeon 0:e59cc54df17c 71 if (fext == NULL)
hjjeon 0:e59cc54df17c 72 header["Content-Type"] = "text/html";
hjjeon 0:e59cc54df17c 73 else {
hjjeon 0:e59cc54df17c 74 for (int i = 0 ; i < sizeof(fileTypeMapping)/sizeof(struct mapping_t) ;i++) {
hjjeon 0:e59cc54df17c 75 if (_stricmp(fileTypeMapping[i].key, fext) == 0) {
hjjeon 0:e59cc54df17c 76 header["Content-Type"] = fileTypeMapping[i].value;
hjjeon 0:e59cc54df17c 77 break;
hjjeon 0:e59cc54df17c 78 }
hjjeon 0:e59cc54df17c 79 }
hjjeon 0:e59cc54df17c 80 }
hjjeon 0:e59cc54df17c 81 }
hjjeon 0:e59cc54df17c 82
hjjeon 0:e59cc54df17c 83 void HTTPRequestHandler::handleRequest()
hjjeon 0:e59cc54df17c 84 {
hjjeon 0:e59cc54df17c 85 int err = 0;
hjjeon 0:e59cc54df17c 86
hjjeon 0:e59cc54df17c 87 switch (msg.request) {
hjjeon 0:e59cc54df17c 88 case HTTP_RT_GET:
hjjeon 0:e59cc54df17c 89 INFO("Dispatching GET Request.");
hjjeon 0:e59cc54df17c 90 err = handleGetRequest();
hjjeon 0:e59cc54df17c 91 break;
hjjeon 0:e59cc54df17c 92
hjjeon 0:e59cc54df17c 93 case HTTP_RT_POST:
hjjeon 0:e59cc54df17c 94 INFO("Dispatching POST request.");
hjjeon 0:e59cc54df17c 95 err = handlePostRequest();
hjjeon 0:e59cc54df17c 96 break;
hjjeon 0:e59cc54df17c 97
hjjeon 0:e59cc54df17c 98 case HTTP_RT_PUT:
hjjeon 0:e59cc54df17c 99 INFO("Dispatching PUT request.");
hjjeon 0:e59cc54df17c 100 err = handlePutRequest();
hjjeon 0:e59cc54df17c 101 break;
hjjeon 0:e59cc54df17c 102
hjjeon 0:e59cc54df17c 103 default:
hjjeon 0:e59cc54df17c 104 INFO("Error in handleRequest, unhandled request type.");
hjjeon 0:e59cc54df17c 105 err = HTTP_NotImplemented;
hjjeon 0:e59cc54df17c 106 break;
hjjeon 0:e59cc54df17c 107 }
hjjeon 0:e59cc54df17c 108
hjjeon 0:e59cc54df17c 109 // if any of these functions returns a negative number, call the error handler
hjjeon 0:e59cc54df17c 110 if (err > 0) {
hjjeon 0:e59cc54df17c 111 handleError(err);
hjjeon 0:e59cc54df17c 112 }
hjjeon 0:e59cc54df17c 113 }
hjjeon 0:e59cc54df17c 114
hjjeon 0:e59cc54df17c 115 static const char* szErrorPage = "<HTML><HEAD><META content=\"text/html\" http-equiv=Content-Type></HEAD><BODY><h1>Error</h1><P>HTTPServer Error<P></BODY></HTML>\r\n\r\n";
hjjeon 0:e59cc54df17c 116
hjjeon 0:e59cc54df17c 117 void HTTPRequestHandler::handleError(int errorCode, HTTPHeaders* header)
hjjeon 0:e59cc54df17c 118 {
hjjeon 0:e59cc54df17c 119 INFO("Handling error !");
hjjeon 0:e59cc54df17c 120 tcp.set_blocking(false, 1500);
hjjeon 0:e59cc54df17c 121 sprintf(buffer,"HTTP/1.1 %d Error\r\n", errorCode);
hjjeon 0:e59cc54df17c 122 tcp.send(buffer, strlen(buffer));
hjjeon 0:e59cc54df17c 123 sprintf(buffer, "Content-Length: %d\r\n", strlen(szErrorPage));
hjjeon 0:e59cc54df17c 124 tcp.send(buffer, strlen(buffer));
hjjeon 0:e59cc54df17c 125 if (header == NULL) {
hjjeon 0:e59cc54df17c 126 sprintf(buffer, "Content-Type: text/html\r\nServer: mbed embedded\r\n\n\r");
hjjeon 0:e59cc54df17c 127 tcp.send(buffer, strlen(buffer));
hjjeon 0:e59cc54df17c 128 }
hjjeon 0:e59cc54df17c 129 else {
hjjeon 0:e59cc54df17c 130 for ( map<const char*, const char*>::iterator cIter = header->begin() ; cIter != header->end() ; cIter ++) {
hjjeon 0:e59cc54df17c 131 tcp.send((char*)cIter->first, strlen(cIter->first));
hjjeon 0:e59cc54df17c 132 tcp.send(": ", 2);
hjjeon 0:e59cc54df17c 133 tcp.send((char*)cIter->second, strlen(cIter->second));
hjjeon 0:e59cc54df17c 134 tcp.send("\r\n",2);
hjjeon 0:e59cc54df17c 135 }
hjjeon 0:e59cc54df17c 136 tcp.send("\r\n",2);
hjjeon 0:e59cc54df17c 137 }
hjjeon 0:e59cc54df17c 138 tcp.send((char*)szErrorPage, strlen(szErrorPage));
hjjeon 0:e59cc54df17c 139 }
hjjeon 0:e59cc54df17c 140
hjjeon 0:e59cc54df17c 141
hjjeon 0:e59cc54df17c 142 void HTTPRequestHandler::startResponse(int returnCode, long nLen, HTTPHeaders* header)
hjjeon 0:e59cc54df17c 143 {
hjjeon 0:e59cc54df17c 144 INFO("Starting response (%ld bytes in total)!", nLen);
hjjeon 0:e59cc54df17c 145 tcp.set_blocking(false, 1500);
hjjeon 0:e59cc54df17c 146 sprintf(buffer, "HTTP/1.1 %d OK\r\n", returnCode);
hjjeon 0:e59cc54df17c 147 tcp.send(buffer, strlen(buffer));
hjjeon 0:e59cc54df17c 148 sprintf(buffer, "Content-Length: %ld\r\n", nLen); // Add 2 chars for the terminating CR+LF
hjjeon 0:e59cc54df17c 149 tcp.send(buffer, strlen(buffer));
hjjeon 0:e59cc54df17c 150 INFO("Sending standard headers !");
hjjeon 0:e59cc54df17c 151 if (header == NULL) {
hjjeon 0:e59cc54df17c 152 tcp.send_all((char*)hdrStandard, strlen(hdrStandard));
hjjeon 0:e59cc54df17c 153 }
hjjeon 0:e59cc54df17c 154 else {
hjjeon 0:e59cc54df17c 155 for ( map<const char*, const char*>::iterator cIter = header->begin() ; cIter != header->end() ; cIter ++) {
hjjeon 0:e59cc54df17c 156 tcp.send_all((char*)cIter->first, strlen(cIter->first));
hjjeon 0:e59cc54df17c 157 tcp.send_all(": ", 2);
hjjeon 0:e59cc54df17c 158 tcp.send_all((char*)cIter->second, strlen(cIter->second));
hjjeon 0:e59cc54df17c 159 tcp.send_all("\r\n\r\n",2);
hjjeon 0:e59cc54df17c 160 }
hjjeon 0:e59cc54df17c 161 tcp.send_all("\r\n", 2);
hjjeon 0:e59cc54df17c 162 }
hjjeon 0:e59cc54df17c 163 INFO("Proceeding !");
hjjeon 0:e59cc54df17c 164 // other content must be sent using the 'processResponse' function
hjjeon 0:e59cc54df17c 165 }
hjjeon 0:e59cc54df17c 166
hjjeon 0:e59cc54df17c 167 void HTTPRequestHandler::processResponse(int nLen, char* body)
hjjeon 0:e59cc54df17c 168 {
hjjeon 0:e59cc54df17c 169 INFO("Processing Response (%d bytes)!\n",nLen);
hjjeon 0:e59cc54df17c 170 tcp.send_all(body, nLen);
hjjeon 0:e59cc54df17c 171 }
hjjeon 0:e59cc54df17c 172
hjjeon 0:e59cc54df17c 173 void HTTPRequestHandler::endResponse()
hjjeon 0:e59cc54df17c 174 {
hjjeon 0:e59cc54df17c 175 INFO("Ending Response !");
hjjeon 0:e59cc54df17c 176 }