Library for httpserver
Fork of httpServer_with_Ethernt by
Handler/FsHandler.cpp
- Committer:
- hjjeon
- Date:
- 2016-02-12
- Revision:
- 4:2903435e3811
- Parent:
- 2:dd293a10a772
- Child:
- 5:62b15cc96f1b
File content as of revision 4:2903435e3811:
/* FsHandler.cpp */ #include "mbed.h" #include "FsHandler.h" //#define DEBUG #include "hl_debug.h" DigitalOut led_red(LED1); DigitalOut led_green(LED2); DigitalOut led_blue(LED3); DigitalIn din(PC_14); AnalogIn ain0(A0); AnalogIn ain1(A1); static int matchstrings(const char* one, const char* two) { int m = 0; for (m = 0; m < min(strlen(one), strlen(two)) ; m++) { if (one[m] != two[m]) return m; } return m; } std::map<const char*, const char*> HTTPFsRequestHandler::m_fsMap; HTTPFsRequestHandler::HTTPFsRequestHandler(const char* rootPath, const char* localPath, HTTPConnection::HTTPMessage& Msg, TCPSocketConnection& Tcp) : HTTPRequestHandler(Msg, Tcp) { m_rootPath = rootPath; m_localPath = localPath; string myPath = m_rootPath + m_localPath; // Now replace the virtual root path with a mounted device path std::map<const char*, const char*>::iterator it; const char *bestMatch = NULL; const char *bestMatchExchange = NULL; int match_ind = -1; for (it = m_fsMap.begin() ; it != m_fsMap.end() ; it++) { // find best match (if the given logical path is containted in the root int s = matchstrings(myPath.c_str(), it->second); INFO("Matching Root %s with handler %s results in %d identical characters\n", myPath.c_str(), it->second, s); if ((s == strlen(it->second)) && (s > match_ind)) { match_ind = s; bestMatch = it->first; bestMatchExchange = it->second; } } if (bestMatch != NULL) { m_rootPath = bestMatch; m_localPath = string(myPath).substr(strlen(bestMatchExchange)); } handleRequest(); } HTTPFsRequestHandler::~HTTPFsRequestHandler() { } std::map<int, EthernetInterface*> HTTPFsRequestHandler::m_eth_list; int HTTPFsRequestHandler::handleGetRequest() { HTTPHeaders headers; EthernetInterface test_eth; int retval = 0; //success if( std::string::npos != msg.uri.find("get_netinfo.cgi") ) { char buf[256]; sprintf(buf, "NetinfoCallback({\"mac\":\"%s\",\"ip\":\"%s\",\"sn\":\"%s\",\"gw\":\"%s\",\"temp\":\"%s\"});" ,m_eth_list[0]->getMACAddress(),m_eth_list[0]->getIPAddress(),m_eth_list[0]->getNetworkMask(),m_eth_list[0]->getGateway()); tcp.send(buf, strlen(buf)); } else if( std::string::npos != msg.uri.find("get_ain.cgi") ) { char buf[256]; sprintf(buf, "AinCallback({\"ain_v0\":\"%.3f\",\"ain_v1\":\"%.3f\"});",ain0.read()*100, ain1.read()*100); tcp.send(buf, strlen(buf)); } else //read html pages { if (m_localPath.length() > 4) getStandardHeaders(headers, m_localPath.substr(m_localPath.length()-4).c_str()); else getStandardHeaders(headers); INFO("Handling Get Request (root = %s, local = %s).", m_rootPath.c_str(), m_localPath.c_str()); std::string reqPath; // Check if we received a directory with the local bath if ((m_localPath.length() == 0) || (m_localPath.substr( m_localPath.length()-1, 1) == "/")) { // yes, we shall append the default page name m_localPath += "index.html"; } reqPath = m_rootPath + m_localPath; INFO("Mapping \"%s\" to \"%s\"", msg.uri.c_str(), reqPath.c_str()); FILE *fp = fopen(reqPath.c_str(), "r"); if (fp != NULL) { char * pBuffer = NULL; int sz = 8192; while( pBuffer == NULL) { sz /= 2; pBuffer = (char*)malloc(sz); if (sz < 128) error ("OutOfMemory"); } // File was found and can be returned // first determine the size fseek(fp, 0, SEEK_END); long size = ftell(fp); fseek(fp, 0, SEEK_SET); startResponse(200, size); while(!feof(fp) && !ferror(fp)) { int cnt = fread(pBuffer, 1, sz , fp); if (cnt < 0) cnt = 0; processResponse(cnt, pBuffer); } delete pBuffer; endResponse(); fclose(fp); } else { retval = 404; ERR("Requested file was not found !"); } } return retval; } int HTTPFsRequestHandler::handlePostRequest() { int pin = 0; if( std::string::npos != msg.uri.find("set_dio.cgi") ) { pin = get_http_param_value("pin"); if(pin == 8) { led_red = get_http_param_value("val"); } else if(pin == 9) { led_green = get_http_param_value("val"); } else if(pin == 5) { led_blue = get_http_param_value("val"); } else { WARN("Wrong pin number"); } return 0; } else { return 404; } } int HTTPFsRequestHandler::handlePutRequest() { return 404; } uint32_t HTTPFsRequestHandler::get_http_param_value(char* param_name) { uint8_t * name = 0; uint8_t * pos2; uint16_t len = 0; char value[10]; uint32_t ret = 0; //msg.attri if((name = (uint8_t *)strstr(msg.attri, param_name))) { name += strlen(param_name) + 1; pos2 = (uint8_t*)strstr((char*)name, "&"); if(!pos2) { pos2 = name + strlen((char*)name); } len = pos2 - name; if(len) { strncpy(value, (char*)name, len); ret = atoi(value); } } return ret; }