Seo-young Yoon / httpServer

aa

Dependents:   Internet-Piano_WIZwiki-W7500

Fork of httpServer by IOP

Handler/FsHandler.cpp@2:45877b9fab33, 2015-08-11 (annotated)

Committer:
ysy00700
Date:
Tue Aug 11 05:37:32 2015 +0000
Revision:
2:45877b9fab33
Parent:
1:8291b3e9c064 
aa

Who changed what in which revision?

UserRevisionLine numberNew 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
justinkim 1:8291b3e9c064 7
justinkim 1:8291b3e9c064 8
ysy00700 2:45877b9fab33 9 DigitalOut led_red(LED_RED, 1);
ysy00700 2:45877b9fab33 10 DigitalOut led_green(LED_GREEN, 1);
ysy00700 2:45877b9fab33 11 DigitalOut led_blue(LED_BLUE, 1);
hjjeon 0:e59cc54df17c 12
hjjeon 0:e59cc54df17c 13 DigitalIn din(PC_14);
hjjeon 0:e59cc54df17c 14
hjjeon 0:e59cc54df17c 15 static int matchstrings(const char* one, const char* two)
hjjeon 0:e59cc54df17c 16 {
hjjeon 0:e59cc54df17c 17 int m = 0;
hjjeon 0:e59cc54df17c 18
hjjeon 0:e59cc54df17c 19 for (m = 0; m < min(strlen(one), strlen(two)) ; m++) {
hjjeon 0:e59cc54df17c 20 if (one[m] != two[m])
hjjeon 0:e59cc54df17c 21 return m;
hjjeon 0:e59cc54df17c 22 }
hjjeon 0:e59cc54df17c 23 return m;
hjjeon 0:e59cc54df17c 24 }
hjjeon 0:e59cc54df17c 25
hjjeon 0:e59cc54df17c 26 std::map<const char*, const char*> HTTPFsRequestHandler::m_fsMap;
hjjeon 0:e59cc54df17c 27
hjjeon 0:e59cc54df17c 28 HTTPFsRequestHandler::HTTPFsRequestHandler(const char* rootPath, const char* localPath, HTTPConnection::HTTPMessage& Msg, TCPSocketConnection& Tcp)
hjjeon 0:e59cc54df17c 29 : HTTPRequestHandler(Msg, Tcp)
hjjeon 0:e59cc54df17c 30 {
hjjeon 0:e59cc54df17c 31 m_rootPath = rootPath;
hjjeon 0:e59cc54df17c 32 m_localPath = localPath;
hjjeon 0:e59cc54df17c 33
hjjeon 0:e59cc54df17c 34 string myPath = m_rootPath + m_localPath;
hjjeon 0:e59cc54df17c 35
hjjeon 0:e59cc54df17c 36 // Now replace the virtual root path with a mounted device path
hjjeon 0:e59cc54df17c 37 std::map<const char*, const char*>::iterator it;
hjjeon 0:e59cc54df17c 38 const char *bestMatch = NULL;
hjjeon 0:e59cc54df17c 39 const char *bestMatchExchange = NULL;
hjjeon 0:e59cc54df17c 40 int match_ind = -1;
hjjeon 0:e59cc54df17c 41 for (it = m_fsMap.begin() ; it != m_fsMap.end() ; it++) {
hjjeon 0:e59cc54df17c 42 // find best match (if the given logical path is containted in the root
hjjeon 0:e59cc54df17c 43 int s = matchstrings(myPath.c_str(), it->second);
hjjeon 0:e59cc54df17c 44 INFO("Matching Root %s with handler %s results in %d identical characters\n", myPath.c_str(), it->second, s);
hjjeon 0:e59cc54df17c 45 if ((s == strlen(it->second)) && (s > match_ind)) {
hjjeon 0:e59cc54df17c 46 match_ind = s;
hjjeon 0:e59cc54df17c 47 bestMatch = it->first;
hjjeon 0:e59cc54df17c 48 bestMatchExchange = it->second;
hjjeon 0:e59cc54df17c 49 }
hjjeon 0:e59cc54df17c 50 }
hjjeon 0:e59cc54df17c 51
hjjeon 0:e59cc54df17c 52 if (bestMatch != NULL) {
hjjeon 0:e59cc54df17c 53 m_rootPath = bestMatch;
hjjeon 0:e59cc54df17c 54 m_localPath = string(myPath).substr(strlen(bestMatchExchange));
hjjeon 0:e59cc54df17c 55 }
hjjeon 0:e59cc54df17c 56
hjjeon 0:e59cc54df17c 57 handleRequest();
hjjeon 0:e59cc54df17c 58 }
hjjeon 0:e59cc54df17c 59
hjjeon 0:e59cc54df17c 60 HTTPFsRequestHandler::~HTTPFsRequestHandler()
hjjeon 0:e59cc54df17c 61 {
hjjeon 0:e59cc54df17c 62 }
hjjeon 0:e59cc54df17c 63
hjjeon 0:e59cc54df17c 64 int HTTPFsRequestHandler::handleGetRequest()
hjjeon 0:e59cc54df17c 65 {
hjjeon 0:e59cc54df17c 66 HTTPHeaders headers;
hjjeon 0:e59cc54df17c 67 int retval = 0; //success
hjjeon 0:e59cc54df17c 68 uint8_t pin_state;
hjjeon 0:e59cc54df17c 69
hjjeon 0:e59cc54df17c 70 if( std::string::npos != msg.uri.find("get_dio14.cgi") )
hjjeon 0:e59cc54df17c 71 {
hjjeon 0:e59cc54df17c 72 if(din)
hjjeon 0:e59cc54df17c 73 pin_state = 1;
hjjeon 0:e59cc54df17c 74 else
hjjeon 0:e59cc54df17c 75 pin_state = 0;
hjjeon 0:e59cc54df17c 76
hjjeon 0:e59cc54df17c 77 /*
hjjeon 0:e59cc54df17c 78 *len = sprintf((char *)buf, "DioCallback({\"dio_p\":\"14\",\
hjjeon 0:e59cc54df17c 79 \"dio_s\":\"%d\"\
hjjeon 0:e59cc54df17c 80 });",
hjjeon 0:e59cc54df17c 81 pin_state // Digital io status
hjjeon 0:e59cc54df17c 82 );
hjjeon 0:e59cc54df17c 83
hjjeon 0:e59cc54df17c 84
hjjeon 0:e59cc54df17c 85 Tcp.
hjjeon 0:e59cc54df17c 86 */
hjjeon 0:e59cc54df17c 87 }
hjjeon 0:e59cc54df17c 88 else //read html pages
hjjeon 0:e59cc54df17c 89 {
hjjeon 0:e59cc54df17c 90 if (m_localPath.length() > 4)
hjjeon 0:e59cc54df17c 91 getStandardHeaders(headers, m_localPath.substr(m_localPath.length()-4).c_str());
hjjeon 0:e59cc54df17c 92 else
hjjeon 0:e59cc54df17c 93 getStandardHeaders(headers);
hjjeon 0:e59cc54df17c 94
hjjeon 0:e59cc54df17c 95 INFO("Handling Get Request (root = %s, local = %s).", m_rootPath.c_str(), m_localPath.c_str());
hjjeon 0:e59cc54df17c 96
hjjeon 0:e59cc54df17c 97 std::string reqPath;
hjjeon 0:e59cc54df17c 98
hjjeon 0:e59cc54df17c 99 // Check if we received a directory with the local bath
hjjeon 0:e59cc54df17c 100 if ((m_localPath.length() == 0) || (m_localPath.substr( m_localPath.length()-1, 1) == "/")) {
hjjeon 0:e59cc54df17c 101 // yes, we shall append the default page name
hjjeon 0:e59cc54df17c 102 m_localPath += "index.html";
hjjeon 0:e59cc54df17c 103 }
hjjeon 0:e59cc54df17c 104
hjjeon 0:e59cc54df17c 105 reqPath = m_rootPath + m_localPath;
hjjeon 0:e59cc54df17c 106
hjjeon 0:e59cc54df17c 107 INFO("Mapping \"%s\" to \"%s\"", msg.uri.c_str(), reqPath.c_str());
hjjeon 0:e59cc54df17c 108
hjjeon 0:e59cc54df17c 109 FILE *fp = fopen(reqPath.c_str(), "r");
hjjeon 0:e59cc54df17c 110 if (fp != NULL) {
hjjeon 0:e59cc54df17c 111 char * pBuffer = NULL;
hjjeon 0:e59cc54df17c 112 int sz = 8192;
hjjeon 0:e59cc54df17c 113 while( pBuffer == NULL) {
hjjeon 0:e59cc54df17c 114 sz /= 2;
hjjeon 0:e59cc54df17c 115 pBuffer = (char*)malloc(sz);
hjjeon 0:e59cc54df17c 116 if (sz < 128)
hjjeon 0:e59cc54df17c 117 error ("OutOfMemory");
hjjeon 0:e59cc54df17c 118 }
hjjeon 0:e59cc54df17c 119
hjjeon 0:e59cc54df17c 120 // File was found and can be returned
hjjeon 0:e59cc54df17c 121
hjjeon 0:e59cc54df17c 122 // first determine the size
hjjeon 0:e59cc54df17c 123 fseek(fp, 0, SEEK_END);
hjjeon 0:e59cc54df17c 124 long size = ftell(fp);
hjjeon 0:e59cc54df17c 125 fseek(fp, 0, SEEK_SET);
hjjeon 0:e59cc54df17c 126
hjjeon 0:e59cc54df17c 127 startResponse(200, size);
hjjeon 0:e59cc54df17c 128 while(!feof(fp) && !ferror(fp)) {
hjjeon 0:e59cc54df17c 129 int cnt = fread(pBuffer, 1, sz , fp);
hjjeon 0:e59cc54df17c 130 if (cnt < 0)
hjjeon 0:e59cc54df17c 131 cnt = 0;
hjjeon 0:e59cc54df17c 132 processResponse(cnt, pBuffer);
hjjeon 0:e59cc54df17c 133 }
hjjeon 0:e59cc54df17c 134 delete pBuffer;
hjjeon 0:e59cc54df17c 135 endResponse();
hjjeon 0:e59cc54df17c 136 fclose(fp);
hjjeon 0:e59cc54df17c 137 }
hjjeon 0:e59cc54df17c 138 else {
hjjeon 0:e59cc54df17c 139 retval = 404;
hjjeon 0:e59cc54df17c 140 ERR("Requested file was not found !");
hjjeon 0:e59cc54df17c 141 }
hjjeon 0:e59cc54df17c 142 }
hjjeon 0:e59cc54df17c 143
hjjeon 0:e59cc54df17c 144 return retval;
hjjeon 0:e59cc54df17c 145 }
hjjeon 0:e59cc54df17c 146
hjjeon 0:e59cc54df17c 147 int HTTPFsRequestHandler::handlePostRequest()
hjjeon 0:e59cc54df17c 148 {
justinkim 1:8291b3e9c064 149 int i = 0;
hjjeon 0:e59cc54df17c 150 int pin = 0;
hjjeon 0:e59cc54df17c 151
justinkim 1:8291b3e9c064 152 if( std::string::npos != msg.uri.find("set_LED.cgi") )
hjjeon 0:e59cc54df17c 153 {
hjjeon 0:e59cc54df17c 154 pin = get_http_param_value("pin");
ysy00700 2:45877b9fab33 155 if(pin==0) led_red = 0;
ysy00700 2:45877b9fab33 156 else if(pin==1) led_red = 1;
ysy00700 2:45877b9fab33 157 else if(pin==2) led_green = 0;
hjjeon 0:e59cc54df17c 158 else
hjjeon 0:e59cc54df17c 159 {
hjjeon 0:e59cc54df17c 160 WARN("Wrong pin number");
hjjeon 0:e59cc54df17c 161 }
hjjeon 0:e59cc54df17c 162
hjjeon 0:e59cc54df17c 163 return 0;
justinkim 1:8291b3e9c064 164 }
justinkim 1:8291b3e9c064 165 else if( std::string::npos != msg.uri.find("set_AUTO.cgi") )
justinkim 1:8291b3e9c064 166 {
justinkim 1:8291b3e9c064 167 pin = get_http_param_value("pin");
justinkim 1:8291b3e9c064 168 if(pin==0)
justinkim 1:8291b3e9c064 169 {
ysy00700 2:45877b9fab33 170
justinkim 1:8291b3e9c064 171 }
justinkim 1:8291b3e9c064 172 else
justinkim 1:8291b3e9c064 173 {
justinkim 1:8291b3e9c064 174 WARN("Wrong pin number");
justinkim 1:8291b3e9c064 175 }
justinkim 1:8291b3e9c064 176
justinkim 1:8291b3e9c064 177 return 0;
justinkim 1:8291b3e9c064 178 }
hjjeon 0:e59cc54df17c 179 else
hjjeon 0:e59cc54df17c 180 {
hjjeon 0:e59cc54df17c 181 return 404;
hjjeon 0:e59cc54df17c 182 }
hjjeon 0:e59cc54df17c 183 }
hjjeon 0:e59cc54df17c 184
hjjeon 0:e59cc54df17c 185 int HTTPFsRequestHandler::handlePutRequest()
hjjeon 0:e59cc54df17c 186 {
hjjeon 0:e59cc54df17c 187 return 404;
hjjeon 0:e59cc54df17c 188 }
hjjeon 0:e59cc54df17c 189
hjjeon 0:e59cc54df17c 190 uint32_t HTTPFsRequestHandler::get_http_param_value(char* param_name)
hjjeon 0:e59cc54df17c 191 {
hjjeon 0:e59cc54df17c 192 uint8_t * name = 0;
hjjeon 0:e59cc54df17c 193 uint8_t * pos2;
hjjeon 0:e59cc54df17c 194 uint16_t len = 0;
hjjeon 0:e59cc54df17c 195 char value[10];
hjjeon 0:e59cc54df17c 196 uint32_t ret = 0;
hjjeon 0:e59cc54df17c 197
hjjeon 0:e59cc54df17c 198 //msg.attri
hjjeon 0:e59cc54df17c 199 if((name = (uint8_t *)strstr(msg.attri, param_name)))
hjjeon 0:e59cc54df17c 200 {
hjjeon 0:e59cc54df17c 201 name += strlen(param_name) + 1;
hjjeon 0:e59cc54df17c 202 pos2 = (uint8_t*)strstr((char*)name, "&");
hjjeon 0:e59cc54df17c 203 if(!pos2)
hjjeon 0:e59cc54df17c 204 {
hjjeon 0:e59cc54df17c 205 pos2 = name + strlen((char*)name);
hjjeon 0:e59cc54df17c 206 }
hjjeon 0:e59cc54df17c 207 len = pos2 - name;
hjjeon 0:e59cc54df17c 208
hjjeon 0:e59cc54df17c 209 if(len)
hjjeon 0:e59cc54df17c 210 {
hjjeon 0:e59cc54df17c 211 strncpy(value, (char*)name, len);
hjjeon 0:e59cc54df17c 212 ret = atoi(value);
hjjeon 0:e59cc54df17c 213 }
hjjeon 0:e59cc54df17c 214 }
hjjeon 0:e59cc54df17c 215 return ret;
hjjeon 0:e59cc54df17c 216 }