C Sonsino / HTTPServer

Single instance HTTP Server using new Ethernet Interface. Blocking mode only; this improved stability, but the HTTP server must be started from a separate thread.

Dependents:   SmartLight

Fork of HTTPServer by Henry Leinen

HTTPRequestHandler.cpp@9:c2a1462b9b71, 2013-06-02 (annotated)

Committer:
leihen
Date:
Sun Jun 02 00:33:56 2013 +0000
Revision:
9:c2a1462b9b71
Parent:
7:cb7fec1265b5
Child:
10:cbde7929db7f
Some small simplifications and improvements.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leihen 1:6b7472d5e9ee 1 /* HTTPRequestHandler.cpp */
leihen 1:6b7472d5e9ee 2 #include "mbed.h"
leihen 1:6b7472d5e9ee 3 #include "HTTPRequestHandler.h"
leihen 1:6b7472d5e9ee 4
leihen 6:fe661fa9d18a 5 #define _DEBUG 0
leihen 6:fe661fa9d18a 6
leihen 6:fe661fa9d18a 7 #if (_DEBUG && !defined(TARGET_LPC11U24))
leihen 3:d6224049b3bf 8 #define INFO(x, ...) std::printf("[HTTPRequestHandler : DBG]"x"\r\n", ##__VA_ARGS__);
leihen 3:d6224049b3bf 9 #define WARN(x, ...) std::printf("[HTTPRequestHandler : DBG]"x"\r\n", ##__VA_ARGS__);
leihen 3:d6224049b3bf 10 #define ERR(x, ...) std::printf("[HTTPRequestHandler : DBG]"x"\r\n", ##__VA_ARGS__);
leihen 3:d6224049b3bf 11 #else
leihen 3:d6224049b3bf 12 #define INFO(x, ...)
leihen 3:d6224049b3bf 13 #define WARN(x, ...)
leihen 3:d6224049b3bf 14 #define ERR(x, ...)
leihen 3:d6224049b3bf 15 #endif
leihen 1:6b7472d5e9ee 16
leihen 3:d6224049b3bf 17 static char buffer[128];
leihen 3:d6224049b3bf 18
leihen 3:d6224049b3bf 19 HTTPRequestHandler::HTTPRequestHandler(HTTPConnection::HTTPMessage& Msg, TCPSocketConnection& Tcp)
leihen 3:d6224049b3bf 20 : msg(Msg), tcp(Tcp)
leihen 1:6b7472d5e9ee 21 {
leihen 3:d6224049b3bf 22 msg = Msg;
leihen 3:d6224049b3bf 23 tcp = Tcp;
leihen 1:6b7472d5e9ee 24 }
leihen 1:6b7472d5e9ee 25
leihen 1:6b7472d5e9ee 26 HTTPRequestHandler::~HTTPRequestHandler()
leihen 1:6b7472d5e9ee 27 {
leihen 3:d6224049b3bf 28 }
leihen 3:d6224049b3bf 29
leihen 3:d6224049b3bf 30 void HTTPRequestHandler::handleRequest()
leihen 3:d6224049b3bf 31 {
leihen 3:d6224049b3bf 32 int err = 0;
leihen 3:d6224049b3bf 33
leihen 3:d6224049b3bf 34 switch (msg.request) {
leihen 3:d6224049b3bf 35 case HTTP_RT_GET:
leihen 3:d6224049b3bf 36 INFO("Dispatching GET Request.");
leihen 3:d6224049b3bf 37 err = handleGetRequest();
leihen 3:d6224049b3bf 38 break;
leihen 3:d6224049b3bf 39
leihen 4:d065642c32cc 40 case HTTP_RT_POST:
leihen 4:d065642c32cc 41 INFO("Dispatching POST request.");
leihen 4:d065642c32cc 42 err = handlePostRequest();
leihen 4:d065642c32cc 43 break;
leihen 3:d6224049b3bf 44
leihen 4:d065642c32cc 45 case HTTP_RT_PUT:
leihen 4:d065642c32cc 46 INFO("Dispatching PUT request.");
leihen 4:d065642c32cc 47 err = handlePutRequest();
leihen 4:d065642c32cc 48 break;
leihen 3:d6224049b3bf 49
leihen 3:d6224049b3bf 50 default:
leihen 3:d6224049b3bf 51 INFO("Error in handleRequest, unhandled request type.");
leihen 9:c2a1462b9b71 52 err = HTTP_NotImplemented;
leihen 3:d6224049b3bf 53 break;
leihen 3:d6224049b3bf 54 }
leihen 3:d6224049b3bf 55
leihen 3:d6224049b3bf 56 // if any of these functions returns a negative number, call the error handler
leihen 3:d6224049b3bf 57 if (err > 0) {
leihen 3:d6224049b3bf 58 handleError(err);
leihen 3:d6224049b3bf 59 }
leihen 3:d6224049b3bf 60 }
leihen 3:d6224049b3bf 61
leihen 3:d6224049b3bf 62 static const char* szErrorPage = "<HTML><HEAD><META content=\"text/html\" http-equiv=Content-Type></HEAD><BODY><h1>Error %d</h1><P>HTTPServer Error<P></BODY></HTML>\r\n\r\n";
leihen 3:d6224049b3bf 63
leihen 3:d6224049b3bf 64 void HTTPRequestHandler::handleError(int errorCode, HTTPHeaders* header)
leihen 3:d6224049b3bf 65 {
leihen 3:d6224049b3bf 66 INFO("Handling error !");
leihen 3:d6224049b3bf 67 tcp.set_blocking(true, 1500);
leihen 9:c2a1462b9b71 68 sprintf(buffer,"HTTP/1.0 %d Error\r\n", errorCode);
leihen 3:d6224049b3bf 69 tcp.send(buffer, strlen(buffer));
leihen 3:d6224049b3bf 70 sprintf(buffer, "Content-Length: %d\r\n", strlen(szErrorPage));
leihen 3:d6224049b3bf 71 tcp.send(buffer, strlen(buffer));
leihen 3:d6224049b3bf 72 if (header == NULL) {
leihen 3:d6224049b3bf 73 sprintf(buffer, "Content-Type: text/html\r\nServer: mbed embedded\r\n\n\r");
leihen 3:d6224049b3bf 74 tcp.send(buffer, strlen(buffer));
leihen 3:d6224049b3bf 75 }
leihen 3:d6224049b3bf 76 else {
leihen 3:d6224049b3bf 77 for ( map<const char*, const char*>::iterator cIter = header->begin() ; cIter != header->end() ; cIter ++) {
leihen 3:d6224049b3bf 78 tcp.send((char*)cIter->first, strlen(cIter->first));
leihen 3:d6224049b3bf 79 tcp.send(": ", 2);
leihen 3:d6224049b3bf 80 tcp.send((char*)cIter->second, strlen(cIter->second));
leihen 3:d6224049b3bf 81 tcp.send("\r\n",2);
leihen 3:d6224049b3bf 82 }
leihen 3:d6224049b3bf 83 tcp.send("\r\n",2);
leihen 3:d6224049b3bf 84 }
leihen 3:d6224049b3bf 85 tcp.send((char*)szErrorPage, strlen(szErrorPage));
leihen 3:d6224049b3bf 86 }
leihen 3:d6224049b3bf 87
leihen 3:d6224049b3bf 88
leihen 7:cb7fec1265b5 89 void HTTPRequestHandler::startResponse(int returnCode, long nLen, HTTPHeaders* header)
leihen 3:d6224049b3bf 90 {
leihen 7:cb7fec1265b5 91 INFO("Starting response (%ld bytes in total)!", nLen);
leihen 3:d6224049b3bf 92 tcp.set_blocking(true, 1500);
leihen 9:c2a1462b9b71 93 sprintf(buffer, "HTTP/1.0 %d OK\r\n", returnCode);
leihen 3:d6224049b3bf 94 tcp.send(buffer, strlen(buffer));
leihen 7:cb7fec1265b5 95 sprintf(buffer, "Content-Length: %ld\r\n", nLen); // Add 2 chars for the terminating CR+LF
leihen 3:d6224049b3bf 96 tcp.send(buffer, strlen(buffer));
leihen 3:d6224049b3bf 97 if (header == NULL) {
leihen 3:d6224049b3bf 98 sprintf(buffer, "Content-Type: text/html\r\nServer: mbed embedded\r\n\r\n");
leihen 3:d6224049b3bf 99 tcp.send(buffer, strlen(buffer));
leihen 3:d6224049b3bf 100 }
leihen 3:d6224049b3bf 101 else {
leihen 3:d6224049b3bf 102 for ( map<const char*, const char*>::iterator cIter = header->begin() ; cIter != header->end() ; cIter ++) {
leihen 3:d6224049b3bf 103 tcp.send((char*)cIter->first, strlen(cIter->first));
leihen 3:d6224049b3bf 104 tcp.send(": ", 2);
leihen 3:d6224049b3bf 105 tcp.send((char*)cIter->second, strlen(cIter->second));
leihen 3:d6224049b3bf 106 tcp.send("\r\n\r\n",2);
leihen 3:d6224049b3bf 107 }
leihen 3:d6224049b3bf 108 tcp.send("\r\n", 2);
leihen 3:d6224049b3bf 109 }
leihen 3:d6224049b3bf 110 // other content must be sent using the 'processResponse' function
leihen 3:d6224049b3bf 111 }
leihen 3:d6224049b3bf 112
leihen 3:d6224049b3bf 113 void HTTPRequestHandler::processResponse(int nLen, char* body)
leihen 3:d6224049b3bf 114 {
leihen 7:cb7fec1265b5 115 INFO("Processing Response (%d bytes)!\n",nLen);
leihen 3:d6224049b3bf 116 tcp.send(body, nLen);
leihen 3:d6224049b3bf 117 }
leihen 3:d6224049b3bf 118
leihen 3:d6224049b3bf 119 void HTTPRequestHandler::endResponse()
leihen 3:d6224049b3bf 120 {
leihen 3:d6224049b3bf 121 INFO("Ending Response !");
leihen 3:d6224049b3bf 122 tcp.send("\r\n", 2);
leihen 3:d6224049b3bf 123 }