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Handler/FsHandler.cpp@2:4c6d58b112d3, 2015-10-05 (annotated)
- Committer:
- schenk
- Date:
- Mon Oct 05 06:35:09 2015 +0000
- Revision:
- 2:4c6d58b112d3
- Parent:
- 0:e59cc54df17c
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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 | |
schenk | 2:4c6d58b112d3 | 7 | |
hjjeon | 0:e59cc54df17c | 8 | |
hjjeon | 0:e59cc54df17c | 9 | DigitalIn din(PC_14); |
schenk | 2:4c6d58b112d3 | 10 | int mode2 = 0; |
hjjeon | 0:e59cc54df17c | 11 | |
hjjeon | 0:e59cc54df17c | 12 | static int matchstrings(const char* one, const char* two) |
hjjeon | 0:e59cc54df17c | 13 | { |
hjjeon | 0:e59cc54df17c | 14 | int m = 0; |
hjjeon | 0:e59cc54df17c | 15 | |
hjjeon | 0:e59cc54df17c | 16 | for (m = 0; m < min(strlen(one), strlen(two)) ; m++) { |
hjjeon | 0:e59cc54df17c | 17 | if (one[m] != two[m]) |
hjjeon | 0:e59cc54df17c | 18 | return m; |
hjjeon | 0:e59cc54df17c | 19 | } |
hjjeon | 0:e59cc54df17c | 20 | return m; |
hjjeon | 0:e59cc54df17c | 21 | } |
hjjeon | 0:e59cc54df17c | 22 | |
hjjeon | 0:e59cc54df17c | 23 | std::map<const char*, const char*> HTTPFsRequestHandler::m_fsMap; |
hjjeon | 0:e59cc54df17c | 24 | |
hjjeon | 0:e59cc54df17c | 25 | HTTPFsRequestHandler::HTTPFsRequestHandler(const char* rootPath, const char* localPath, HTTPConnection::HTTPMessage& Msg, TCPSocketConnection& Tcp) |
hjjeon | 0:e59cc54df17c | 26 | : HTTPRequestHandler(Msg, Tcp) |
hjjeon | 0:e59cc54df17c | 27 | { |
hjjeon | 0:e59cc54df17c | 28 | m_rootPath = rootPath; |
hjjeon | 0:e59cc54df17c | 29 | m_localPath = localPath; |
hjjeon | 0:e59cc54df17c | 30 | |
hjjeon | 0:e59cc54df17c | 31 | string myPath = m_rootPath + m_localPath; |
hjjeon | 0:e59cc54df17c | 32 | |
hjjeon | 0:e59cc54df17c | 33 | // Now replace the virtual root path with a mounted device path |
hjjeon | 0:e59cc54df17c | 34 | std::map<const char*, const char*>::iterator it; |
hjjeon | 0:e59cc54df17c | 35 | const char *bestMatch = NULL; |
hjjeon | 0:e59cc54df17c | 36 | const char *bestMatchExchange = NULL; |
hjjeon | 0:e59cc54df17c | 37 | int match_ind = -1; |
hjjeon | 0:e59cc54df17c | 38 | for (it = m_fsMap.begin() ; it != m_fsMap.end() ; it++) { |
hjjeon | 0:e59cc54df17c | 39 | // find best match (if the given logical path is containted in the root |
hjjeon | 0:e59cc54df17c | 40 | int s = matchstrings(myPath.c_str(), it->second); |
hjjeon | 0:e59cc54df17c | 41 | INFO("Matching Root %s with handler %s results in %d identical characters\n", myPath.c_str(), it->second, s); |
hjjeon | 0:e59cc54df17c | 42 | if ((s == strlen(it->second)) && (s > match_ind)) { |
hjjeon | 0:e59cc54df17c | 43 | match_ind = s; |
hjjeon | 0:e59cc54df17c | 44 | bestMatch = it->first; |
hjjeon | 0:e59cc54df17c | 45 | bestMatchExchange = it->second; |
hjjeon | 0:e59cc54df17c | 46 | } |
hjjeon | 0:e59cc54df17c | 47 | } |
hjjeon | 0:e59cc54df17c | 48 | |
hjjeon | 0:e59cc54df17c | 49 | if (bestMatch != NULL) { |
hjjeon | 0:e59cc54df17c | 50 | m_rootPath = bestMatch; |
hjjeon | 0:e59cc54df17c | 51 | m_localPath = string(myPath).substr(strlen(bestMatchExchange)); |
hjjeon | 0:e59cc54df17c | 52 | } |
hjjeon | 0:e59cc54df17c | 53 | |
hjjeon | 0:e59cc54df17c | 54 | handleRequest(); |
hjjeon | 0:e59cc54df17c | 55 | } |
hjjeon | 0:e59cc54df17c | 56 | |
hjjeon | 0:e59cc54df17c | 57 | HTTPFsRequestHandler::~HTTPFsRequestHandler() |
hjjeon | 0:e59cc54df17c | 58 | { |
hjjeon | 0:e59cc54df17c | 59 | } |
hjjeon | 0:e59cc54df17c | 60 | |
hjjeon | 0:e59cc54df17c | 61 | int HTTPFsRequestHandler::handleGetRequest() |
hjjeon | 0:e59cc54df17c | 62 | { |
hjjeon | 0:e59cc54df17c | 63 | HTTPHeaders headers; |
hjjeon | 0:e59cc54df17c | 64 | int retval = 0; //success |
hjjeon | 0:e59cc54df17c | 65 | uint8_t pin_state; |
hjjeon | 0:e59cc54df17c | 66 | |
hjjeon | 0:e59cc54df17c | 67 | if( std::string::npos != msg.uri.find("get_dio14.cgi") ) |
hjjeon | 0:e59cc54df17c | 68 | { |
hjjeon | 0:e59cc54df17c | 69 | if(din) |
hjjeon | 0:e59cc54df17c | 70 | pin_state = 1; |
hjjeon | 0:e59cc54df17c | 71 | else |
hjjeon | 0:e59cc54df17c | 72 | pin_state = 0; |
hjjeon | 0:e59cc54df17c | 73 | |
hjjeon | 0:e59cc54df17c | 74 | /* |
hjjeon | 0:e59cc54df17c | 75 | *len = sprintf((char *)buf, "DioCallback({\"dio_p\":\"14\",\ |
hjjeon | 0:e59cc54df17c | 76 | \"dio_s\":\"%d\"\ |
hjjeon | 0:e59cc54df17c | 77 | });", |
hjjeon | 0:e59cc54df17c | 78 | pin_state // Digital io status |
hjjeon | 0:e59cc54df17c | 79 | ); |
hjjeon | 0:e59cc54df17c | 80 | |
hjjeon | 0:e59cc54df17c | 81 | |
hjjeon | 0:e59cc54df17c | 82 | Tcp. |
hjjeon | 0:e59cc54df17c | 83 | */ |
hjjeon | 0:e59cc54df17c | 84 | } |
hjjeon | 0:e59cc54df17c | 85 | else //read html pages |
hjjeon | 0:e59cc54df17c | 86 | { |
hjjeon | 0:e59cc54df17c | 87 | if (m_localPath.length() > 4) |
hjjeon | 0:e59cc54df17c | 88 | getStandardHeaders(headers, m_localPath.substr(m_localPath.length()-4).c_str()); |
hjjeon | 0:e59cc54df17c | 89 | else |
hjjeon | 0:e59cc54df17c | 90 | getStandardHeaders(headers); |
hjjeon | 0:e59cc54df17c | 91 | |
hjjeon | 0:e59cc54df17c | 92 | INFO("Handling Get Request (root = %s, local = %s).", m_rootPath.c_str(), m_localPath.c_str()); |
hjjeon | 0:e59cc54df17c | 93 | |
hjjeon | 0:e59cc54df17c | 94 | std::string reqPath; |
hjjeon | 0:e59cc54df17c | 95 | |
hjjeon | 0:e59cc54df17c | 96 | // Check if we received a directory with the local bath |
hjjeon | 0:e59cc54df17c | 97 | if ((m_localPath.length() == 0) || (m_localPath.substr( m_localPath.length()-1, 1) == "/")) { |
hjjeon | 0:e59cc54df17c | 98 | // yes, we shall append the default page name |
schenk | 2:4c6d58b112d3 | 99 | m_localPath += "dio_page.html"; |
hjjeon | 0:e59cc54df17c | 100 | } |
hjjeon | 0:e59cc54df17c | 101 | |
hjjeon | 0:e59cc54df17c | 102 | reqPath = m_rootPath + m_localPath; |
hjjeon | 0:e59cc54df17c | 103 | |
hjjeon | 0:e59cc54df17c | 104 | INFO("Mapping \"%s\" to \"%s\"", msg.uri.c_str(), reqPath.c_str()); |
hjjeon | 0:e59cc54df17c | 105 | |
hjjeon | 0:e59cc54df17c | 106 | FILE *fp = fopen(reqPath.c_str(), "r"); |
hjjeon | 0:e59cc54df17c | 107 | if (fp != NULL) { |
hjjeon | 0:e59cc54df17c | 108 | char * pBuffer = NULL; |
hjjeon | 0:e59cc54df17c | 109 | int sz = 8192; |
hjjeon | 0:e59cc54df17c | 110 | while( pBuffer == NULL) { |
hjjeon | 0:e59cc54df17c | 111 | sz /= 2; |
hjjeon | 0:e59cc54df17c | 112 | pBuffer = (char*)malloc(sz); |
hjjeon | 0:e59cc54df17c | 113 | if (sz < 128) |
hjjeon | 0:e59cc54df17c | 114 | error ("OutOfMemory"); |
hjjeon | 0:e59cc54df17c | 115 | } |
hjjeon | 0:e59cc54df17c | 116 | |
hjjeon | 0:e59cc54df17c | 117 | // File was found and can be returned |
hjjeon | 0:e59cc54df17c | 118 | |
hjjeon | 0:e59cc54df17c | 119 | // first determine the size |
hjjeon | 0:e59cc54df17c | 120 | fseek(fp, 0, SEEK_END); |
hjjeon | 0:e59cc54df17c | 121 | long size = ftell(fp); |
hjjeon | 0:e59cc54df17c | 122 | fseek(fp, 0, SEEK_SET); |
hjjeon | 0:e59cc54df17c | 123 | |
hjjeon | 0:e59cc54df17c | 124 | startResponse(200, size); |
hjjeon | 0:e59cc54df17c | 125 | while(!feof(fp) && !ferror(fp)) { |
hjjeon | 0:e59cc54df17c | 126 | int cnt = fread(pBuffer, 1, sz , fp); |
hjjeon | 0:e59cc54df17c | 127 | if (cnt < 0) |
hjjeon | 0:e59cc54df17c | 128 | cnt = 0; |
hjjeon | 0:e59cc54df17c | 129 | processResponse(cnt, pBuffer); |
hjjeon | 0:e59cc54df17c | 130 | } |
hjjeon | 0:e59cc54df17c | 131 | delete pBuffer; |
hjjeon | 0:e59cc54df17c | 132 | endResponse(); |
hjjeon | 0:e59cc54df17c | 133 | fclose(fp); |
hjjeon | 0:e59cc54df17c | 134 | } |
hjjeon | 0:e59cc54df17c | 135 | else { |
hjjeon | 0:e59cc54df17c | 136 | retval = 404; |
hjjeon | 0:e59cc54df17c | 137 | ERR("Requested file was not found !"); |
hjjeon | 0:e59cc54df17c | 138 | } |
hjjeon | 0:e59cc54df17c | 139 | } |
hjjeon | 0:e59cc54df17c | 140 | |
hjjeon | 0:e59cc54df17c | 141 | return retval; |
hjjeon | 0:e59cc54df17c | 142 | } |
hjjeon | 0:e59cc54df17c | 143 | |
hjjeon | 0:e59cc54df17c | 144 | int HTTPFsRequestHandler::handlePostRequest() |
hjjeon | 0:e59cc54df17c | 145 | { |
hjjeon | 0:e59cc54df17c | 146 | |
hjjeon | 0:e59cc54df17c | 147 | int pin = 0; |
hjjeon | 0:e59cc54df17c | 148 | |
hjjeon | 0:e59cc54df17c | 149 | if( std::string::npos != msg.uri.find("set_dio.cgi") ) |
hjjeon | 0:e59cc54df17c | 150 | { |
hjjeon | 0:e59cc54df17c | 151 | pin = get_http_param_value("pin"); |
schenk | 2:4c6d58b112d3 | 152 | |
schenk | 2:4c6d58b112d3 | 153 | |
schenk | 2:4c6d58b112d3 | 154 | if(pin == 9) |
schenk | 2:4c6d58b112d3 | 155 | { |
schenk | 2:4c6d58b112d3 | 156 | if(get_http_param_value("val") == 0){ |
schenk | 2:4c6d58b112d3 | 157 | DigitalOut(D9,0); |
schenk | 2:4c6d58b112d3 | 158 | DigitalOut(D8,1); |
schenk | 2:4c6d58b112d3 | 159 | wait(0.87); |
schenk | 2:4c6d58b112d3 | 160 | DigitalOut(D9,0); |
schenk | 2:4c6d58b112d3 | 161 | DigitalOut(D8,0); |
schenk | 2:4c6d58b112d3 | 162 | }// opened status |
schenk | 2:4c6d58b112d3 | 163 | else{ |
schenk | 2:4c6d58b112d3 | 164 | DigitalOut(D9,1); |
schenk | 2:4c6d58b112d3 | 165 | DigitalOut(D8,0); |
schenk | 2:4c6d58b112d3 | 166 | wait(0.8); |
schenk | 2:4c6d58b112d3 | 167 | DigitalOut(D9,0); |
schenk | 2:4c6d58b112d3 | 168 | DigitalOut(D8,0); |
schenk | 2:4c6d58b112d3 | 169 | //closed status |
schenk | 2:4c6d58b112d3 | 170 | } |
schenk | 2:4c6d58b112d3 | 171 | |
hjjeon | 0:e59cc54df17c | 172 | } |
schenk | 2:4c6d58b112d3 | 173 | else if(pin == 10) |
schenk | 2:4c6d58b112d3 | 174 | { |
schenk | 2:4c6d58b112d3 | 175 | if(get_http_param_value("val") == 0){ |
schenk | 2:4c6d58b112d3 | 176 | DigitalOut(D13,1); |
schenk | 2:4c6d58b112d3 | 177 | }// turn on |
schenk | 2:4c6d58b112d3 | 178 | else{ |
schenk | 2:4c6d58b112d3 | 179 | DigitalOut(D13,0); |
schenk | 2:4c6d58b112d3 | 180 | |
schenk | 2:4c6d58b112d3 | 181 | }//turn off |
schenk | 2:4c6d58b112d3 | 182 | |
hjjeon | 0:e59cc54df17c | 183 | } |
schenk | 2:4c6d58b112d3 | 184 | |
hjjeon | 0:e59cc54df17c | 185 | else |
hjjeon | 0:e59cc54df17c | 186 | { |
hjjeon | 0:e59cc54df17c | 187 | WARN("Wrong pin number"); |
hjjeon | 0:e59cc54df17c | 188 | } |
hjjeon | 0:e59cc54df17c | 189 | |
hjjeon | 0:e59cc54df17c | 190 | return 0; |
hjjeon | 0:e59cc54df17c | 191 | } |
hjjeon | 0:e59cc54df17c | 192 | else |
hjjeon | 0:e59cc54df17c | 193 | { |
hjjeon | 0:e59cc54df17c | 194 | return 404; |
hjjeon | 0:e59cc54df17c | 195 | } |
hjjeon | 0:e59cc54df17c | 196 | } |
hjjeon | 0:e59cc54df17c | 197 | |
hjjeon | 0:e59cc54df17c | 198 | int HTTPFsRequestHandler::handlePutRequest() |
hjjeon | 0:e59cc54df17c | 199 | { |
hjjeon | 0:e59cc54df17c | 200 | return 404; |
hjjeon | 0:e59cc54df17c | 201 | } |
hjjeon | 0:e59cc54df17c | 202 | |
hjjeon | 0:e59cc54df17c | 203 | uint32_t HTTPFsRequestHandler::get_http_param_value(char* param_name) |
hjjeon | 0:e59cc54df17c | 204 | { |
hjjeon | 0:e59cc54df17c | 205 | uint8_t * name = 0; |
hjjeon | 0:e59cc54df17c | 206 | uint8_t * pos2; |
hjjeon | 0:e59cc54df17c | 207 | uint16_t len = 0; |
hjjeon | 0:e59cc54df17c | 208 | char value[10]; |
hjjeon | 0:e59cc54df17c | 209 | uint32_t ret = 0; |
hjjeon | 0:e59cc54df17c | 210 | |
hjjeon | 0:e59cc54df17c | 211 | //msg.attri |
hjjeon | 0:e59cc54df17c | 212 | if((name = (uint8_t *)strstr(msg.attri, param_name))) |
hjjeon | 0:e59cc54df17c | 213 | { |
hjjeon | 0:e59cc54df17c | 214 | name += strlen(param_name) + 1; |
hjjeon | 0:e59cc54df17c | 215 | pos2 = (uint8_t*)strstr((char*)name, "&"); |
hjjeon | 0:e59cc54df17c | 216 | if(!pos2) |
hjjeon | 0:e59cc54df17c | 217 | { |
hjjeon | 0:e59cc54df17c | 218 | pos2 = name + strlen((char*)name); |
hjjeon | 0:e59cc54df17c | 219 | } |
hjjeon | 0:e59cc54df17c | 220 | len = pos2 - name; |
hjjeon | 0:e59cc54df17c | 221 | |
hjjeon | 0:e59cc54df17c | 222 | if(len) |
hjjeon | 0:e59cc54df17c | 223 | { |
hjjeon | 0:e59cc54df17c | 224 | strncpy(value, (char*)name, len); |
hjjeon | 0:e59cc54df17c | 225 | ret = atoi(value); |
hjjeon | 0:e59cc54df17c | 226 | } |
hjjeon | 0:e59cc54df17c | 227 | } |
hjjeon | 0:e59cc54df17c | 228 | return ret; |
hjjeon | 0:e59cc54df17c | 229 | } |
hjjeon | 0:e59cc54df17c | 230 |