Henry Leinen / WiFlyHTTPServer

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Dependents:   WiFlyHTTPServerSample MultiThreadingHTTPServer

Handler/FsHandler.cpp@13:93ff322420b0, 2013-06-26 (annotated)

Committer:
leihen
Date:
Wed Jun 26 21:12:42 2013 +0000
Revision:
13:93ff322420b0
Parent:
12:ba81cc117fb6 
Working Multithreaded HTTP Server.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leihen 5:dc88012caef1 1 /* FsHandler.cpp */
leihen 5:dc88012caef1 2 #include "mbed.h"
leihen 5:dc88012caef1 3 #include "FsHandler.h"
leihen 5:dc88012caef1 4
leihen 13:93ff322420b0 5 //#define DEBUG
leihen 13:93ff322420b0 6 #include "debug.h"
leihen 5:dc88012caef1 7
leihen 5:dc88012caef1 8
leihen 5:dc88012caef1 9
leihen 12:ba81cc117fb6 10 static int matchstrings(const char* one, const char* two)
leihen 12:ba81cc117fb6 11 {
leihen 12:ba81cc117fb6 12 int m = 0;
leihen 12:ba81cc117fb6 13
leihen 12:ba81cc117fb6 14 for (m = 0; m < min(strlen(one), strlen(two)) ; m++) {
leihen 12:ba81cc117fb6 15 if (one[m] != two[m])
leihen 12:ba81cc117fb6 16 return m;
leihen 12:ba81cc117fb6 17 }
leihen 12:ba81cc117fb6 18 return m;
leihen 12:ba81cc117fb6 19 }
leihen 5:dc88012caef1 20
leihen 5:dc88012caef1 21 std::map<const char*, const char*> HTTPFsRequestHandler::m_fsMap;
leihen 5:dc88012caef1 22
leihen 13:93ff322420b0 23 HTTPFsRequestHandler::HTTPFsRequestHandler(const char* rootPath, const char* localPath, HTTPConnection::HTTPMessage& Msg)
leihen 13:93ff322420b0 24 : HTTPRequestHandler(Msg)
leihen 5:dc88012caef1 25 {
leihen 5:dc88012caef1 26 m_rootPath = rootPath;
leihen 5:dc88012caef1 27 m_localPath = localPath;
leihen 5:dc88012caef1 28
leihen 12:ba81cc117fb6 29 string myPath = m_rootPath + m_localPath;
leihen 12:ba81cc117fb6 30
leihen 5:dc88012caef1 31 // Now replace the virtual root path with a mounted device path
leihen 5:dc88012caef1 32 std::map<const char*, const char*>::iterator it;
leihen 12:ba81cc117fb6 33 const char *bestMatch = NULL;
leihen 12:ba81cc117fb6 34 const char *bestMatchExchange = NULL;
leihen 12:ba81cc117fb6 35 int match_ind = -1;
leihen 5:dc88012caef1 36 for (it = m_fsMap.begin() ; it != m_fsMap.end() ; it++) {
leihen 5:dc88012caef1 37 // find best match (if the given logical path is containted in the root
leihen 12:ba81cc117fb6 38 int s = matchstrings(myPath.c_str(), it->second);
leihen 12:ba81cc117fb6 39 INFO("Matching Root %s with handler %s results in %d identical characters\n", myPath.c_str(), it->second, s);
leihen 12:ba81cc117fb6 40 if ((s == strlen(it->second)) && (s > match_ind)) {
leihen 12:ba81cc117fb6 41 match_ind = s;
leihen 12:ba81cc117fb6 42 bestMatch = it->first;
leihen 12:ba81cc117fb6 43 bestMatchExchange = it->second;
leihen 5:dc88012caef1 44 }
leihen 5:dc88012caef1 45 }
leihen 12:ba81cc117fb6 46
leihen 12:ba81cc117fb6 47 if (bestMatch != NULL) {
leihen 12:ba81cc117fb6 48 m_rootPath = bestMatch;
leihen 12:ba81cc117fb6 49 m_localPath = string(myPath).substr(strlen(bestMatchExchange));
leihen 12:ba81cc117fb6 50 }
leihen 12:ba81cc117fb6 51
leihen 5:dc88012caef1 52 handleRequest();
leihen 5:dc88012caef1 53 }
leihen 5:dc88012caef1 54
leihen 5:dc88012caef1 55 HTTPFsRequestHandler::~HTTPFsRequestHandler()
leihen 5:dc88012caef1 56 {
leihen 5:dc88012caef1 57 }
leihen 5:dc88012caef1 58
leihen 5:dc88012caef1 59 int HTTPFsRequestHandler::handleGetRequest()
leihen 5:dc88012caef1 60 {
leihen 12:ba81cc117fb6 61 HTTPHeaders headers;
leihen 12:ba81cc117fb6 62
leihen 12:ba81cc117fb6 63 if (m_localPath.length() > 4)
leihen 12:ba81cc117fb6 64 getStandardHeaders(headers, m_localPath.substr(m_localPath.length()-4).c_str());
leihen 12:ba81cc117fb6 65 else
leihen 12:ba81cc117fb6 66 getStandardHeaders(headers);
leihen 12:ba81cc117fb6 67
leihen 12:ba81cc117fb6 68 INFO("Handling Get Request (root = %s, local = %s).", m_rootPath.c_str(), m_localPath.c_str());
leihen 5:dc88012caef1 69 int retval = 0; //success
leihen 5:dc88012caef1 70 std::string reqPath;
leihen 5:dc88012caef1 71
leihen 5:dc88012caef1 72 // Check if we received a directory with the local bath
leihen 5:dc88012caef1 73 if ((m_localPath.length() == 0) || (m_localPath.substr( m_localPath.length()-1, 1) == "/")) {
leihen 5:dc88012caef1 74 // yes, we shall append the default page name
leihen 5:dc88012caef1 75 m_localPath += "index.html";
leihen 5:dc88012caef1 76 }
leihen 5:dc88012caef1 77
leihen 5:dc88012caef1 78 reqPath = m_rootPath + m_localPath;
leihen 5:dc88012caef1 79
leihen 5:dc88012caef1 80 INFO("Mapping \"%s\" to \"%s\"", msg.uri.c_str(), reqPath.c_str());
leihen 5:dc88012caef1 81
leihen 5:dc88012caef1 82 FILE *fp = fopen(reqPath.c_str(), "r");
leihen 5:dc88012caef1 83 if (fp != NULL) {
leihen 12:ba81cc117fb6 84 char * pBuffer = NULL;
leihen 12:ba81cc117fb6 85 int sz = 8192;
leihen 12:ba81cc117fb6 86 while( pBuffer == NULL) {
leihen 12:ba81cc117fb6 87 sz /= 2;
leihen 12:ba81cc117fb6 88 pBuffer = (char*)malloc(sz);
leihen 12:ba81cc117fb6 89 if (sz < 128)
leihen 12:ba81cc117fb6 90 error ("OutOfMemory");
leihen 12:ba81cc117fb6 91 }
leihen 12:ba81cc117fb6 92
leihen 5:dc88012caef1 93 // File was found and can be returned
leihen 5:dc88012caef1 94
leihen 5:dc88012caef1 95 // first determine the size
leihen 5:dc88012caef1 96 fseek(fp, 0, SEEK_END);
leihen 5:dc88012caef1 97 long size = ftell(fp);
leihen 5:dc88012caef1 98 fseek(fp, 0, SEEK_SET);
leihen 5:dc88012caef1 99
leihen 5:dc88012caef1 100 startResponse(200, size);
leihen 5:dc88012caef1 101 while(!feof(fp) && !ferror(fp)) {
leihen 12:ba81cc117fb6 102 int cnt = fread(pBuffer, 1, sz , fp);
leihen 7:cb7fec1265b5 103 if (cnt < 0)
leihen 7:cb7fec1265b5 104 cnt = 0;
leihen 12:ba81cc117fb6 105 processResponse(cnt, pBuffer);
leihen 5:dc88012caef1 106 }
leihen 12:ba81cc117fb6 107 delete pBuffer;
leihen 5:dc88012caef1 108 endResponse();
leihen 5:dc88012caef1 109 fclose(fp);
leihen 5:dc88012caef1 110 }
leihen 5:dc88012caef1 111 else {
leihen 5:dc88012caef1 112 retval = 404;
leihen 5:dc88012caef1 113 ERR("Requested file was not found !");
leihen 5:dc88012caef1 114 }
leihen 5:dc88012caef1 115
leihen 5:dc88012caef1 116 return retval;
leihen 5:dc88012caef1 117 }
leihen 5:dc88012caef1 118
leihen 5:dc88012caef1 119 int HTTPFsRequestHandler::handlePostRequest()
leihen 5:dc88012caef1 120 {
leihen 5:dc88012caef1 121 return 404;
leihen 5:dc88012caef1 122 }
leihen 5:dc88012caef1 123
leihen 5:dc88012caef1 124 int HTTPFsRequestHandler::handlePutRequest()
leihen 5:dc88012caef1 125 {
leihen 5:dc88012caef1 126 return 404;
leihen 5:dc88012caef1 127 }