Hendrik Vincent / Mbed 2 deprecated Weerstation

Leest de waarde van een sensor binnen een maakt deze beschikbaar via internet

Dependencies:   NTPClient_NetServices mbed

NetServices/services/http/server/impl/FSHandler.cpp@0:05ccbd4f84f1, 2013-12-02 (annotated)

Committer:
hendrikvincent
Date:
Mon Dec 02 09:01:23 2013 +0000
Revision:
0:05ccbd4f84f1
eerste programma;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hendrikvincent 0:05ccbd4f84f1 1
hendrikvincent 0:05ccbd4f84f1 2 /*
hendrikvincent 0:05ccbd4f84f1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hendrikvincent 0:05ccbd4f84f1 4
hendrikvincent 0:05ccbd4f84f1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hendrikvincent 0:05ccbd4f84f1 6 of this software and associated documentation files (the "Software"), to deal
hendrikvincent 0:05ccbd4f84f1 7 in the Software without restriction, including without limitation the rights
hendrikvincent 0:05ccbd4f84f1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hendrikvincent 0:05ccbd4f84f1 9 copies of the Software, and to permit persons to whom the Software is
hendrikvincent 0:05ccbd4f84f1 10 furnished to do so, subject to the following conditions:
hendrikvincent 0:05ccbd4f84f1 11
hendrikvincent 0:05ccbd4f84f1 12 The above copyright notice and this permission notice shall be included in
hendrikvincent 0:05ccbd4f84f1 13 all copies or substantial portions of the Software.
hendrikvincent 0:05ccbd4f84f1 14
hendrikvincent 0:05ccbd4f84f1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hendrikvincent 0:05ccbd4f84f1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hendrikvincent 0:05ccbd4f84f1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hendrikvincent 0:05ccbd4f84f1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hendrikvincent 0:05ccbd4f84f1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hendrikvincent 0:05ccbd4f84f1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hendrikvincent 0:05ccbd4f84f1 21 THE SOFTWARE.
hendrikvincent 0:05ccbd4f84f1 22 */
hendrikvincent 0:05ccbd4f84f1 23
hendrikvincent 0:05ccbd4f84f1 24 #include "FSHandler.h"
hendrikvincent 0:05ccbd4f84f1 25
hendrikvincent 0:05ccbd4f84f1 26 //#define __DEBUG
hendrikvincent 0:05ccbd4f84f1 27 #include "dbg/dbg.h"
hendrikvincent 0:05ccbd4f84f1 28
hendrikvincent 0:05ccbd4f84f1 29 #define CHUNK_SIZE 128
hendrikvincent 0:05ccbd4f84f1 30
hendrikvincent 0:05ccbd4f84f1 31 #define DEFAULT_PAGE "/index.htm"
hendrikvincent 0:05ccbd4f84f1 32
hendrikvincent 0:05ccbd4f84f1 33 FSHandler::FSHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket) : HTTPRequestHandler(rootPath, path, pTCPSocket), m_err404(false)
hendrikvincent 0:05ccbd4f84f1 34 {}
hendrikvincent 0:05ccbd4f84f1 35
hendrikvincent 0:05ccbd4f84f1 36 FSHandler::~FSHandler()
hendrikvincent 0:05ccbd4f84f1 37 {
hendrikvincent 0:05ccbd4f84f1 38 if(m_fp)
hendrikvincent 0:05ccbd4f84f1 39 fclose(m_fp);
hendrikvincent 0:05ccbd4f84f1 40 DBG("\r\nHandler destroyed\r\n");
hendrikvincent 0:05ccbd4f84f1 41 }
hendrikvincent 0:05ccbd4f84f1 42
hendrikvincent 0:05ccbd4f84f1 43 //static init
hendrikvincent 0:05ccbd4f84f1 44 map<string,string> FSHandler::m_lFsPath = map<string,string>();
hendrikvincent 0:05ccbd4f84f1 45
hendrikvincent 0:05ccbd4f84f1 46 void FSHandler::mount(const string& fsPath, const string& rootPath)
hendrikvincent 0:05ccbd4f84f1 47 {
hendrikvincent 0:05ccbd4f84f1 48 m_lFsPath[rootPath]=fsPath;
hendrikvincent 0:05ccbd4f84f1 49 }
hendrikvincent 0:05ccbd4f84f1 50
hendrikvincent 0:05ccbd4f84f1 51 void FSHandler::doGet()
hendrikvincent 0:05ccbd4f84f1 52 {
hendrikvincent 0:05ccbd4f84f1 53 DBG("\r\nIn FSHandler::doGet() - rootPath=%s, path=%s\r\n", rootPath().c_str(), path().c_str());
hendrikvincent 0:05ccbd4f84f1 54 //FIXME: Translate path to local/path
hendrikvincent 0:05ccbd4f84f1 55 string checkedRootPath = rootPath();
hendrikvincent 0:05ccbd4f84f1 56 if(checkedRootPath.empty())
hendrikvincent 0:05ccbd4f84f1 57 checkedRootPath="/";
hendrikvincent 0:05ccbd4f84f1 58 string filePath = m_lFsPath[checkedRootPath];
hendrikvincent 0:05ccbd4f84f1 59 if (path().size() > 1)
hendrikvincent 0:05ccbd4f84f1 60 {
hendrikvincent 0:05ccbd4f84f1 61 filePath += path();
hendrikvincent 0:05ccbd4f84f1 62 }
hendrikvincent 0:05ccbd4f84f1 63 else
hendrikvincent 0:05ccbd4f84f1 64 {
hendrikvincent 0:05ccbd4f84f1 65 filePath += DEFAULT_PAGE;
hendrikvincent 0:05ccbd4f84f1 66 }
hendrikvincent 0:05ccbd4f84f1 67
hendrikvincent 0:05ccbd4f84f1 68 DBG("Trying to open %s\n", filePath.c_str());
hendrikvincent 0:05ccbd4f84f1 69
hendrikvincent 0:05ccbd4f84f1 70 m_fp = fopen(filePath.c_str(), "r"); //FIXME: if null, error 404
hendrikvincent 0:05ccbd4f84f1 71
hendrikvincent 0:05ccbd4f84f1 72 if(!m_fp)
hendrikvincent 0:05ccbd4f84f1 73 {
hendrikvincent 0:05ccbd4f84f1 74 m_err404 = true;
hendrikvincent 0:05ccbd4f84f1 75 setErrCode(404);
hendrikvincent 0:05ccbd4f84f1 76 const char* msg = "File not found.";
hendrikvincent 0:05ccbd4f84f1 77 setContentLen(strlen(msg));
hendrikvincent 0:05ccbd4f84f1 78 respHeaders()["Content-Type"] = "text/html";
hendrikvincent 0:05ccbd4f84f1 79 respHeaders()["Connection"] = "close";
hendrikvincent 0:05ccbd4f84f1 80 writeData(msg,strlen(msg)); //Only send header
hendrikvincent 0:05ccbd4f84f1 81 DBG("\r\nExit FSHandler::doGet() w Error 404\r\n");
hendrikvincent 0:05ccbd4f84f1 82 return;
hendrikvincent 0:05ccbd4f84f1 83 }
hendrikvincent 0:05ccbd4f84f1 84
hendrikvincent 0:05ccbd4f84f1 85 //Seek EOF to get length
hendrikvincent 0:05ccbd4f84f1 86 fseek(m_fp, 0, SEEK_END);
hendrikvincent 0:05ccbd4f84f1 87 setContentLen( ftell(m_fp) );
hendrikvincent 0:05ccbd4f84f1 88 fseek(m_fp, 0, SEEK_SET); //Goto SOF
hendrikvincent 0:05ccbd4f84f1 89
hendrikvincent 0:05ccbd4f84f1 90 respHeaders()["Connection"] = "close";
hendrikvincent 0:05ccbd4f84f1 91 onWriteable();
hendrikvincent 0:05ccbd4f84f1 92 DBG("\r\nExit SimpleHandler::doGet()\r\n");
hendrikvincent 0:05ccbd4f84f1 93 }
hendrikvincent 0:05ccbd4f84f1 94
hendrikvincent 0:05ccbd4f84f1 95 void FSHandler::doPost()
hendrikvincent 0:05ccbd4f84f1 96 {
hendrikvincent 0:05ccbd4f84f1 97
hendrikvincent 0:05ccbd4f84f1 98 }
hendrikvincent 0:05ccbd4f84f1 99
hendrikvincent 0:05ccbd4f84f1 100 void FSHandler::doHead()
hendrikvincent 0:05ccbd4f84f1 101 {
hendrikvincent 0:05ccbd4f84f1 102
hendrikvincent 0:05ccbd4f84f1 103 }
hendrikvincent 0:05ccbd4f84f1 104
hendrikvincent 0:05ccbd4f84f1 105 void FSHandler::onReadable() //Data has been read
hendrikvincent 0:05ccbd4f84f1 106 {
hendrikvincent 0:05ccbd4f84f1 107
hendrikvincent 0:05ccbd4f84f1 108 }
hendrikvincent 0:05ccbd4f84f1 109
hendrikvincent 0:05ccbd4f84f1 110 void FSHandler::onWriteable() //Data has been written & buf is free
hendrikvincent 0:05ccbd4f84f1 111 {
hendrikvincent 0:05ccbd4f84f1 112 DBG("\r\nFSHandler::onWriteable() event\r\n");
hendrikvincent 0:05ccbd4f84f1 113 if(m_err404)
hendrikvincent 0:05ccbd4f84f1 114 {
hendrikvincent 0:05ccbd4f84f1 115 //Error has been served, now exit
hendrikvincent 0:05ccbd4f84f1 116 close();
hendrikvincent 0:05ccbd4f84f1 117 return;
hendrikvincent 0:05ccbd4f84f1 118 }
hendrikvincent 0:05ccbd4f84f1 119
hendrikvincent 0:05ccbd4f84f1 120 static char rBuf[CHUNK_SIZE];
hendrikvincent 0:05ccbd4f84f1 121 while(true)
hendrikvincent 0:05ccbd4f84f1 122 {
hendrikvincent 0:05ccbd4f84f1 123 int len = fread(rBuf, 1, CHUNK_SIZE, m_fp);
hendrikvincent 0:05ccbd4f84f1 124 if(len>0)
hendrikvincent 0:05ccbd4f84f1 125 {
hendrikvincent 0:05ccbd4f84f1 126 int writtenLen = writeData(rBuf, len);
hendrikvincent 0:05ccbd4f84f1 127 if(writtenLen < 0) //Socket error
hendrikvincent 0:05ccbd4f84f1 128 {
hendrikvincent 0:05ccbd4f84f1 129 DBG("FSHandler: Socket error %d\n", writtenLen);
hendrikvincent 0:05ccbd4f84f1 130 if(writtenLen == TCPSOCKET_MEM)
hendrikvincent 0:05ccbd4f84f1 131 {
hendrikvincent 0:05ccbd4f84f1 132 fseek(m_fp, -len, SEEK_CUR);
hendrikvincent 0:05ccbd4f84f1 133 return; //Wait for the queued TCP segments to be transmitted
hendrikvincent 0:05ccbd4f84f1 134 }
hendrikvincent 0:05ccbd4f84f1 135 else
hendrikvincent 0:05ccbd4f84f1 136 {
hendrikvincent 0:05ccbd4f84f1 137 //This is a critical error
hendrikvincent 0:05ccbd4f84f1 138 close();
hendrikvincent 0:05ccbd4f84f1 139 return;
hendrikvincent 0:05ccbd4f84f1 140 }
hendrikvincent 0:05ccbd4f84f1 141 }
hendrikvincent 0:05ccbd4f84f1 142 else if(writtenLen < len) //Short write, socket's buffer is full
hendrikvincent 0:05ccbd4f84f1 143 {
hendrikvincent 0:05ccbd4f84f1 144 fseek(m_fp, writtenLen - len, SEEK_CUR);
hendrikvincent 0:05ccbd4f84f1 145 return;
hendrikvincent 0:05ccbd4f84f1 146 }
hendrikvincent 0:05ccbd4f84f1 147 }
hendrikvincent 0:05ccbd4f84f1 148 else
hendrikvincent 0:05ccbd4f84f1 149 {
hendrikvincent 0:05ccbd4f84f1 150 close(); //Data written, we can close the connection
hendrikvincent 0:05ccbd4f84f1 151 return;
hendrikvincent 0:05ccbd4f84f1 152 }
hendrikvincent 0:05ccbd4f84f1 153 }
hendrikvincent 0:05ccbd4f84f1 154 }
hendrikvincent 0:05ccbd4f84f1 155
hendrikvincent 0:05ccbd4f84f1 156 void FSHandler::onClose() //Connection is closing
hendrikvincent 0:05ccbd4f84f1 157 {
hendrikvincent 0:05ccbd4f84f1 158 if(m_fp)
hendrikvincent 0:05ccbd4f84f1 159 fclose(m_fp);
hendrikvincent 0:05ccbd4f84f1 160 }