oludotun ode / HTTPServer

Mbed asked me to commit the library. Probably because it's an older version

Dependents:   ece4180_project

Fork of HTTPServer by Sarah Marsh

Handler/FsHandler.cpp@18:0d9ea97a13f9, 2017-05-04 (annotated)

Committer:
dotunhunter
Date:
Thu May 04 12:09:12 2017 +0000
Revision:
18:0d9ea97a13f9
Parent:
16:cc3f5c53d0d5 
Commit for HTTPServer. Mbed asked me to commit it probably because it may be an old version. I'm not sure why.

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 13:aa5338a5e452 4 #define DEBUG
leihen 16:cc3f5c53d0d5 5 #include "hl_debug.h"
leihen 5:dc88012caef1 6
leihen 5:dc88012caef1 7
leihen 5:dc88012caef1 8
leihen 12:ba81cc117fb6 9 static int matchstrings(const char* one, const char* two)
leihen 12:ba81cc117fb6 10 {
leihen 12:ba81cc117fb6 11 int m = 0;
leihen 12:ba81cc117fb6 12
leihen 12:ba81cc117fb6 13 for (m = 0; m < min(strlen(one), strlen(two)) ; m++) {
leihen 12:ba81cc117fb6 14 if (one[m] != two[m])
leihen 12:ba81cc117fb6 15 return m;
leihen 12:ba81cc117fb6 16 }
leihen 12:ba81cc117fb6 17 return m;
leihen 12:ba81cc117fb6 18 }
leihen 5:dc88012caef1 19
leihen 5:dc88012caef1 20 std::map<const char*, const char*> HTTPFsRequestHandler::m_fsMap;
leihen 5:dc88012caef1 21
leihen 5:dc88012caef1 22 HTTPFsRequestHandler::HTTPFsRequestHandler(const char* rootPath, const char* localPath, HTTPConnection::HTTPMessage& Msg, TCPSocketConnection& Tcp)
leihen 5:dc88012caef1 23 : HTTPRequestHandler(Msg, Tcp)
leihen 5:dc88012caef1 24 {
leihen 5:dc88012caef1 25 m_rootPath = rootPath;
leihen 5:dc88012caef1 26 m_localPath = localPath;
leihen 5:dc88012caef1 27
leihen 12:ba81cc117fb6 28 string myPath = m_rootPath + m_localPath;
leihen 12:ba81cc117fb6 29
leihen 5:dc88012caef1 30 // Now replace the virtual root path with a mounted device path
leihen 5:dc88012caef1 31 std::map<const char*, const char*>::iterator it;
leihen 12:ba81cc117fb6 32 const char *bestMatch = NULL;
leihen 12:ba81cc117fb6 33 const char *bestMatchExchange = NULL;
leihen 12:ba81cc117fb6 34 int match_ind = -1;
leihen 5:dc88012caef1 35 for (it = m_fsMap.begin() ; it != m_fsMap.end() ; it++) {
leihen 5:dc88012caef1 36 // find best match (if the given logical path is containted in the root
leihen 12:ba81cc117fb6 37 int s = matchstrings(myPath.c_str(), it->second);
leihen 12:ba81cc117fb6 38 INFO("Matching Root %s with handler %s results in %d identical characters\n", myPath.c_str(), it->second, s);
leihen 12:ba81cc117fb6 39 if ((s == strlen(it->second)) && (s > match_ind)) {
leihen 12:ba81cc117fb6 40 match_ind = s;
leihen 12:ba81cc117fb6 41 bestMatch = it->first;
leihen 12:ba81cc117fb6 42 bestMatchExchange = it->second;
leihen 5:dc88012caef1 43 }
leihen 5:dc88012caef1 44 }
leihen 12:ba81cc117fb6 45
leihen 12:ba81cc117fb6 46 if (bestMatch != NULL) {
leihen 12:ba81cc117fb6 47 m_rootPath = bestMatch;
leihen 12:ba81cc117fb6 48 m_localPath = string(myPath).substr(strlen(bestMatchExchange));
leihen 12:ba81cc117fb6 49 }
leihen 12:ba81cc117fb6 50
leihen 5:dc88012caef1 51 handleRequest();
leihen 5:dc88012caef1 52 }
leihen 5:dc88012caef1 53
leihen 5:dc88012caef1 54 HTTPFsRequestHandler::~HTTPFsRequestHandler()
leihen 5:dc88012caef1 55 {
leihen 5:dc88012caef1 56 }
leihen 5:dc88012caef1 57
leihen 5:dc88012caef1 58 int HTTPFsRequestHandler::handleGetRequest()
leihen 5:dc88012caef1 59 {
leihen 12:ba81cc117fb6 60 HTTPHeaders headers;
leihen 12:ba81cc117fb6 61
leihen 12:ba81cc117fb6 62 if (m_localPath.length() > 4)
leihen 12:ba81cc117fb6 63 getStandardHeaders(headers, m_localPath.substr(m_localPath.length()-4).c_str());
leihen 12:ba81cc117fb6 64 else
leihen 12:ba81cc117fb6 65 getStandardHeaders(headers);
leihen 12:ba81cc117fb6 66
leihen 12:ba81cc117fb6 67 INFO("Handling Get Request (root = %s, local = %s).", m_rootPath.c_str(), m_localPath.c_str());
leihen 5:dc88012caef1 68 int retval = 0; //success
leihen 5:dc88012caef1 69 std::string reqPath;
leihen 5:dc88012caef1 70
leihen 5:dc88012caef1 71 // Check if we received a directory with the local bath
leihen 5:dc88012caef1 72 if ((m_localPath.length() == 0) || (m_localPath.substr( m_localPath.length()-1, 1) == "/")) {
leihen 5:dc88012caef1 73 // yes, we shall append the default page name
leihen 5:dc88012caef1 74 m_localPath += "index.html";
leihen 5:dc88012caef1 75 }
leihen 5:dc88012caef1 76
leihen 5:dc88012caef1 77 reqPath = m_rootPath + m_localPath;
leihen 5:dc88012caef1 78
leihen 5:dc88012caef1 79 INFO("Mapping \"%s\" to \"%s\"", msg.uri.c_str(), reqPath.c_str());
leihen 5:dc88012caef1 80
leihen 5:dc88012caef1 81 FILE *fp = fopen(reqPath.c_str(), "r");
leihen 5:dc88012caef1 82 if (fp != NULL) {
leihen 12:ba81cc117fb6 83 char * pBuffer = NULL;
leihen 12:ba81cc117fb6 84 int sz = 8192;
leihen 12:ba81cc117fb6 85 while( pBuffer == NULL) {
leihen 12:ba81cc117fb6 86 sz /= 2;
leihen 12:ba81cc117fb6 87 pBuffer = (char*)malloc(sz);
leihen 12:ba81cc117fb6 88 if (sz < 128)
leihen 12:ba81cc117fb6 89 error ("OutOfMemory");
leihen 12:ba81cc117fb6 90 }
leihen 12:ba81cc117fb6 91
leihen 5:dc88012caef1 92 // File was found and can be returned
leihen 5:dc88012caef1 93
leihen 5:dc88012caef1 94 // first determine the size
leihen 5:dc88012caef1 95 fseek(fp, 0, SEEK_END);
leihen 5:dc88012caef1 96 long size = ftell(fp);
leihen 5:dc88012caef1 97 fseek(fp, 0, SEEK_SET);
leihen 5:dc88012caef1 98
leihen 5:dc88012caef1 99 startResponse(200, size);
leihen 5:dc88012caef1 100 while(!feof(fp) && !ferror(fp)) {
leihen 12:ba81cc117fb6 101 int cnt = fread(pBuffer, 1, sz , fp);
leihen 7:cb7fec1265b5 102 if (cnt < 0)
leihen 7:cb7fec1265b5 103 cnt = 0;
leihen 12:ba81cc117fb6 104 processResponse(cnt, pBuffer);
leihen 5:dc88012caef1 105 }
leihen 12:ba81cc117fb6 106 delete pBuffer;
leihen 5:dc88012caef1 107 endResponse();
leihen 5:dc88012caef1 108 fclose(fp);
leihen 5:dc88012caef1 109 }
leihen 5:dc88012caef1 110 else {
leihen 5:dc88012caef1 111 retval = 404;
leihen 5:dc88012caef1 112 ERR("Requested file was not found !");
leihen 5:dc88012caef1 113 }
leihen 5:dc88012caef1 114
leihen 5:dc88012caef1 115 return retval;
leihen 5:dc88012caef1 116 }
leihen 5:dc88012caef1 117
leihen 5:dc88012caef1 118 int HTTPFsRequestHandler::handlePostRequest()
leihen 5:dc88012caef1 119 {
leihen 5:dc88012caef1 120 return 404;
leihen 5:dc88012caef1 121 }
leihen 5:dc88012caef1 122
leihen 5:dc88012caef1 123 int HTTPFsRequestHandler::handlePutRequest()
leihen 5:dc88012caef1 124 {
leihen 5:dc88012caef1 125 return 404;
leihen 5:dc88012caef1 126 }