Library for httpserver
Fork of httpServer_with_Ethernt by
Handler/FsHandler.cpp@0:e59cc54df17c, 2015-06-29 (annotated)
- Committer:
- hjjeon
- Date:
- Mon Jun 29 09:03:40 2015 +0000
- Revision:
- 0:e59cc54df17c
- Child:
- 2:dd293a10a772
httpServer
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hjjeon | 0:e59cc54df17c | 1 | /* FsHandler.cpp */ |
hjjeon | 0:e59cc54df17c | 2 | #include "mbed.h" |
hjjeon | 0:e59cc54df17c | 3 | #include "FsHandler.h" |
hjjeon | 0:e59cc54df17c | 4 | //#define DEBUG |
hjjeon | 0:e59cc54df17c | 5 | #include "hl_debug.h" |
hjjeon | 0:e59cc54df17c | 6 | |
hjjeon | 0:e59cc54df17c | 7 | DigitalOut led_red(LED1); |
hjjeon | 0:e59cc54df17c | 8 | DigitalOut led_green(LED2); |
hjjeon | 0:e59cc54df17c | 9 | DigitalOut led_blue(LED3); |
hjjeon | 0:e59cc54df17c | 10 | |
hjjeon | 0:e59cc54df17c | 11 | DigitalIn din(PC_14); |
hjjeon | 0:e59cc54df17c | 12 | |
hjjeon | 0:e59cc54df17c | 13 | |
hjjeon | 0:e59cc54df17c | 14 | static int matchstrings(const char* one, const char* two) |
hjjeon | 0:e59cc54df17c | 15 | { |
hjjeon | 0:e59cc54df17c | 16 | int m = 0; |
hjjeon | 0:e59cc54df17c | 17 | |
hjjeon | 0:e59cc54df17c | 18 | for (m = 0; m < min(strlen(one), strlen(two)) ; m++) { |
hjjeon | 0:e59cc54df17c | 19 | if (one[m] != two[m]) |
hjjeon | 0:e59cc54df17c | 20 | return m; |
hjjeon | 0:e59cc54df17c | 21 | } |
hjjeon | 0:e59cc54df17c | 22 | return m; |
hjjeon | 0:e59cc54df17c | 23 | } |
hjjeon | 0:e59cc54df17c | 24 | |
hjjeon | 0:e59cc54df17c | 25 | std::map<const char*, const char*> HTTPFsRequestHandler::m_fsMap; |
hjjeon | 0:e59cc54df17c | 26 | |
hjjeon | 0:e59cc54df17c | 27 | HTTPFsRequestHandler::HTTPFsRequestHandler(const char* rootPath, const char* localPath, HTTPConnection::HTTPMessage& Msg, TCPSocketConnection& Tcp) |
hjjeon | 0:e59cc54df17c | 28 | : HTTPRequestHandler(Msg, Tcp) |
hjjeon | 0:e59cc54df17c | 29 | { |
hjjeon | 0:e59cc54df17c | 30 | m_rootPath = rootPath; |
hjjeon | 0:e59cc54df17c | 31 | m_localPath = localPath; |
hjjeon | 0:e59cc54df17c | 32 | |
hjjeon | 0:e59cc54df17c | 33 | string myPath = m_rootPath + m_localPath; |
hjjeon | 0:e59cc54df17c | 34 | |
hjjeon | 0:e59cc54df17c | 35 | // Now replace the virtual root path with a mounted device path |
hjjeon | 0:e59cc54df17c | 36 | std::map<const char*, const char*>::iterator it; |
hjjeon | 0:e59cc54df17c | 37 | const char *bestMatch = NULL; |
hjjeon | 0:e59cc54df17c | 38 | const char *bestMatchExchange = NULL; |
hjjeon | 0:e59cc54df17c | 39 | int match_ind = -1; |
hjjeon | 0:e59cc54df17c | 40 | for (it = m_fsMap.begin() ; it != m_fsMap.end() ; it++) { |
hjjeon | 0:e59cc54df17c | 41 | // find best match (if the given logical path is containted in the root |
hjjeon | 0:e59cc54df17c | 42 | int s = matchstrings(myPath.c_str(), it->second); |
hjjeon | 0:e59cc54df17c | 43 | INFO("Matching Root %s with handler %s results in %d identical characters\n", myPath.c_str(), it->second, s); |
hjjeon | 0:e59cc54df17c | 44 | if ((s == strlen(it->second)) && (s > match_ind)) { |
hjjeon | 0:e59cc54df17c | 45 | match_ind = s; |
hjjeon | 0:e59cc54df17c | 46 | bestMatch = it->first; |
hjjeon | 0:e59cc54df17c | 47 | bestMatchExchange = it->second; |
hjjeon | 0:e59cc54df17c | 48 | } |
hjjeon | 0:e59cc54df17c | 49 | } |
hjjeon | 0:e59cc54df17c | 50 | |
hjjeon | 0:e59cc54df17c | 51 | if (bestMatch != NULL) { |
hjjeon | 0:e59cc54df17c | 52 | m_rootPath = bestMatch; |
hjjeon | 0:e59cc54df17c | 53 | m_localPath = string(myPath).substr(strlen(bestMatchExchange)); |
hjjeon | 0:e59cc54df17c | 54 | } |
hjjeon | 0:e59cc54df17c | 55 | |
hjjeon | 0:e59cc54df17c | 56 | handleRequest(); |
hjjeon | 0:e59cc54df17c | 57 | } |
hjjeon | 0:e59cc54df17c | 58 | |
hjjeon | 0:e59cc54df17c | 59 | HTTPFsRequestHandler::~HTTPFsRequestHandler() |
hjjeon | 0:e59cc54df17c | 60 | { |
hjjeon | 0:e59cc54df17c | 61 | } |
hjjeon | 0:e59cc54df17c | 62 | |
hjjeon | 0:e59cc54df17c | 63 | int HTTPFsRequestHandler::handleGetRequest() |
hjjeon | 0:e59cc54df17c | 64 | { |
hjjeon | 0:e59cc54df17c | 65 | HTTPHeaders headers; |
hjjeon | 0:e59cc54df17c | 66 | int retval = 0; //success |
hjjeon | 0:e59cc54df17c | 67 | uint8_t pin_state; |
hjjeon | 0:e59cc54df17c | 68 | |
hjjeon | 0:e59cc54df17c | 69 | if( std::string::npos != msg.uri.find("get_dio14.cgi") ) |
hjjeon | 0:e59cc54df17c | 70 | { |
hjjeon | 0:e59cc54df17c | 71 | if(din) |
hjjeon | 0:e59cc54df17c | 72 | pin_state = 1; |
hjjeon | 0:e59cc54df17c | 73 | else |
hjjeon | 0:e59cc54df17c | 74 | pin_state = 0; |
hjjeon | 0:e59cc54df17c | 75 | |
hjjeon | 0:e59cc54df17c | 76 | /* |
hjjeon | 0:e59cc54df17c | 77 | *len = sprintf((char *)buf, "DioCallback({\"dio_p\":\"14\",\ |
hjjeon | 0:e59cc54df17c | 78 | \"dio_s\":\"%d\"\ |
hjjeon | 0:e59cc54df17c | 79 | });", |
hjjeon | 0:e59cc54df17c | 80 | pin_state // Digital io status |
hjjeon | 0:e59cc54df17c | 81 | ); |
hjjeon | 0:e59cc54df17c | 82 | |
hjjeon | 0:e59cc54df17c | 83 | |
hjjeon | 0:e59cc54df17c | 84 | Tcp. |
hjjeon | 0:e59cc54df17c | 85 | */ |
hjjeon | 0:e59cc54df17c | 86 | } |
hjjeon | 0:e59cc54df17c | 87 | else //read html pages |
hjjeon | 0:e59cc54df17c | 88 | { |
hjjeon | 0:e59cc54df17c | 89 | if (m_localPath.length() > 4) |
hjjeon | 0:e59cc54df17c | 90 | getStandardHeaders(headers, m_localPath.substr(m_localPath.length()-4).c_str()); |
hjjeon | 0:e59cc54df17c | 91 | else |
hjjeon | 0:e59cc54df17c | 92 | getStandardHeaders(headers); |
hjjeon | 0:e59cc54df17c | 93 | |
hjjeon | 0:e59cc54df17c | 94 | INFO("Handling Get Request (root = %s, local = %s).", m_rootPath.c_str(), m_localPath.c_str()); |
hjjeon | 0:e59cc54df17c | 95 | |
hjjeon | 0:e59cc54df17c | 96 | std::string reqPath; |
hjjeon | 0:e59cc54df17c | 97 | |
hjjeon | 0:e59cc54df17c | 98 | // Check if we received a directory with the local bath |
hjjeon | 0:e59cc54df17c | 99 | if ((m_localPath.length() == 0) || (m_localPath.substr( m_localPath.length()-1, 1) == "/")) { |
hjjeon | 0:e59cc54df17c | 100 | // yes, we shall append the default page name |
hjjeon | 0:e59cc54df17c | 101 | m_localPath += "index.html"; |
hjjeon | 0:e59cc54df17c | 102 | } |
hjjeon | 0:e59cc54df17c | 103 | |
hjjeon | 0:e59cc54df17c | 104 | reqPath = m_rootPath + m_localPath; |
hjjeon | 0:e59cc54df17c | 105 | |
hjjeon | 0:e59cc54df17c | 106 | INFO("Mapping \"%s\" to \"%s\"", msg.uri.c_str(), reqPath.c_str()); |
hjjeon | 0:e59cc54df17c | 107 | |
hjjeon | 0:e59cc54df17c | 108 | FILE *fp = fopen(reqPath.c_str(), "r"); |
hjjeon | 0:e59cc54df17c | 109 | if (fp != NULL) { |
hjjeon | 0:e59cc54df17c | 110 | char * pBuffer = NULL; |
hjjeon | 0:e59cc54df17c | 111 | int sz = 8192; |
hjjeon | 0:e59cc54df17c | 112 | while( pBuffer == NULL) { |
hjjeon | 0:e59cc54df17c | 113 | sz /= 2; |
hjjeon | 0:e59cc54df17c | 114 | pBuffer = (char*)malloc(sz); |
hjjeon | 0:e59cc54df17c | 115 | if (sz < 128) |
hjjeon | 0:e59cc54df17c | 116 | error ("OutOfMemory"); |
hjjeon | 0:e59cc54df17c | 117 | } |
hjjeon | 0:e59cc54df17c | 118 | |
hjjeon | 0:e59cc54df17c | 119 | // File was found and can be returned |
hjjeon | 0:e59cc54df17c | 120 | |
hjjeon | 0:e59cc54df17c | 121 | // first determine the size |
hjjeon | 0:e59cc54df17c | 122 | fseek(fp, 0, SEEK_END); |
hjjeon | 0:e59cc54df17c | 123 | long size = ftell(fp); |
hjjeon | 0:e59cc54df17c | 124 | fseek(fp, 0, SEEK_SET); |
hjjeon | 0:e59cc54df17c | 125 | |
hjjeon | 0:e59cc54df17c | 126 | startResponse(200, size); |
hjjeon | 0:e59cc54df17c | 127 | while(!feof(fp) && !ferror(fp)) { |
hjjeon | 0:e59cc54df17c | 128 | int cnt = fread(pBuffer, 1, sz , fp); |
hjjeon | 0:e59cc54df17c | 129 | if (cnt < 0) |
hjjeon | 0:e59cc54df17c | 130 | cnt = 0; |
hjjeon | 0:e59cc54df17c | 131 | processResponse(cnt, pBuffer); |
hjjeon | 0:e59cc54df17c | 132 | } |
hjjeon | 0:e59cc54df17c | 133 | delete pBuffer; |
hjjeon | 0:e59cc54df17c | 134 | endResponse(); |
hjjeon | 0:e59cc54df17c | 135 | fclose(fp); |
hjjeon | 0:e59cc54df17c | 136 | } |
hjjeon | 0:e59cc54df17c | 137 | else { |
hjjeon | 0:e59cc54df17c | 138 | retval = 404; |
hjjeon | 0:e59cc54df17c | 139 | ERR("Requested file was not found !"); |
hjjeon | 0:e59cc54df17c | 140 | } |
hjjeon | 0:e59cc54df17c | 141 | } |
hjjeon | 0:e59cc54df17c | 142 | |
hjjeon | 0:e59cc54df17c | 143 | return retval; |
hjjeon | 0:e59cc54df17c | 144 | } |
hjjeon | 0:e59cc54df17c | 145 | |
hjjeon | 0:e59cc54df17c | 146 | int HTTPFsRequestHandler::handlePostRequest() |
hjjeon | 0:e59cc54df17c | 147 | { |
hjjeon | 0:e59cc54df17c | 148 | |
hjjeon | 0:e59cc54df17c | 149 | int pin = 0; |
hjjeon | 0:e59cc54df17c | 150 | |
hjjeon | 0:e59cc54df17c | 151 | if( std::string::npos != msg.uri.find("set_dio.cgi") ) |
hjjeon | 0:e59cc54df17c | 152 | { |
hjjeon | 0:e59cc54df17c | 153 | pin = get_http_param_value("pin"); |
hjjeon | 0:e59cc54df17c | 154 | if(pin == 8) |
hjjeon | 0:e59cc54df17c | 155 | { |
hjjeon | 0:e59cc54df17c | 156 | led_red = get_http_param_value("val"); |
hjjeon | 0:e59cc54df17c | 157 | } |
hjjeon | 0:e59cc54df17c | 158 | else if(pin == 9) |
hjjeon | 0:e59cc54df17c | 159 | { |
hjjeon | 0:e59cc54df17c | 160 | led_green = get_http_param_value("val"); |
hjjeon | 0:e59cc54df17c | 161 | } |
hjjeon | 0:e59cc54df17c | 162 | else if(pin == 5) |
hjjeon | 0:e59cc54df17c | 163 | { |
hjjeon | 0:e59cc54df17c | 164 | led_blue = get_http_param_value("val"); |
hjjeon | 0:e59cc54df17c | 165 | } |
hjjeon | 0:e59cc54df17c | 166 | else |
hjjeon | 0:e59cc54df17c | 167 | { |
hjjeon | 0:e59cc54df17c | 168 | WARN("Wrong pin number"); |
hjjeon | 0:e59cc54df17c | 169 | } |
hjjeon | 0:e59cc54df17c | 170 | |
hjjeon | 0:e59cc54df17c | 171 | return 0; |
hjjeon | 0:e59cc54df17c | 172 | } |
hjjeon | 0:e59cc54df17c | 173 | else |
hjjeon | 0:e59cc54df17c | 174 | { |
hjjeon | 0:e59cc54df17c | 175 | return 404; |
hjjeon | 0:e59cc54df17c | 176 | } |
hjjeon | 0:e59cc54df17c | 177 | } |
hjjeon | 0:e59cc54df17c | 178 | |
hjjeon | 0:e59cc54df17c | 179 | int HTTPFsRequestHandler::handlePutRequest() |
hjjeon | 0:e59cc54df17c | 180 | { |
hjjeon | 0:e59cc54df17c | 181 | return 404; |
hjjeon | 0:e59cc54df17c | 182 | } |
hjjeon | 0:e59cc54df17c | 183 | |
hjjeon | 0:e59cc54df17c | 184 | uint32_t HTTPFsRequestHandler::get_http_param_value(char* param_name) |
hjjeon | 0:e59cc54df17c | 185 | { |
hjjeon | 0:e59cc54df17c | 186 | uint8_t * name = 0; |
hjjeon | 0:e59cc54df17c | 187 | uint8_t * pos2; |
hjjeon | 0:e59cc54df17c | 188 | uint16_t len = 0; |
hjjeon | 0:e59cc54df17c | 189 | char value[10]; |
hjjeon | 0:e59cc54df17c | 190 | uint32_t ret = 0; |
hjjeon | 0:e59cc54df17c | 191 | |
hjjeon | 0:e59cc54df17c | 192 | //msg.attri |
hjjeon | 0:e59cc54df17c | 193 | if((name = (uint8_t *)strstr(msg.attri, param_name))) |
hjjeon | 0:e59cc54df17c | 194 | { |
hjjeon | 0:e59cc54df17c | 195 | name += strlen(param_name) + 1; |
hjjeon | 0:e59cc54df17c | 196 | pos2 = (uint8_t*)strstr((char*)name, "&"); |
hjjeon | 0:e59cc54df17c | 197 | if(!pos2) |
hjjeon | 0:e59cc54df17c | 198 | { |
hjjeon | 0:e59cc54df17c | 199 | pos2 = name + strlen((char*)name); |
hjjeon | 0:e59cc54df17c | 200 | } |
hjjeon | 0:e59cc54df17c | 201 | len = pos2 - name; |
hjjeon | 0:e59cc54df17c | 202 | |
hjjeon | 0:e59cc54df17c | 203 | if(len) |
hjjeon | 0:e59cc54df17c | 204 | { |
hjjeon | 0:e59cc54df17c | 205 | strncpy(value, (char*)name, len); |
hjjeon | 0:e59cc54df17c | 206 | ret = atoi(value); |
hjjeon | 0:e59cc54df17c | 207 | } |
hjjeon | 0:e59cc54df17c | 208 | } |
hjjeon | 0:e59cc54df17c | 209 | return ret; |
hjjeon | 0:e59cc54df17c | 210 | } |
hjjeon | 0:e59cc54df17c | 211 |