FBI FRATER / Mbed 2 deprecated InetTest

Library for Bert van Dam's book "ARM MICROCONTROLLERS" For all chapters with internet.

Dependencies:   mbed

NetServices/services/http/server/impl/FSHandler.cpp@0:4edb816d21e1, 2015-10-16 (annotated)

Committer:
ICTFBI
Date:
Fri Oct 16 14:28:26 2015 +0000
Revision:
0:4edb816d21e1
Pre-update 16-10-15

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ICTFBI 0:4edb816d21e1 1
ICTFBI 0:4edb816d21e1 2 /*
ICTFBI 0:4edb816d21e1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
ICTFBI 0:4edb816d21e1 4
ICTFBI 0:4edb816d21e1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
ICTFBI 0:4edb816d21e1 6 of this software and associated documentation files (the "Software"), to deal
ICTFBI 0:4edb816d21e1 7 in the Software without restriction, including without limitation the rights
ICTFBI 0:4edb816d21e1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ICTFBI 0:4edb816d21e1 9 copies of the Software, and to permit persons to whom the Software is
ICTFBI 0:4edb816d21e1 10 furnished to do so, subject to the following conditions:
ICTFBI 0:4edb816d21e1 11
ICTFBI 0:4edb816d21e1 12 The above copyright notice and this permission notice shall be included in
ICTFBI 0:4edb816d21e1 13 all copies or substantial portions of the Software.
ICTFBI 0:4edb816d21e1 14
ICTFBI 0:4edb816d21e1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ICTFBI 0:4edb816d21e1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ICTFBI 0:4edb816d21e1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ICTFBI 0:4edb816d21e1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ICTFBI 0:4edb816d21e1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ICTFBI 0:4edb816d21e1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ICTFBI 0:4edb816d21e1 21 THE SOFTWARE.
ICTFBI 0:4edb816d21e1 22 */
ICTFBI 0:4edb816d21e1 23
ICTFBI 0:4edb816d21e1 24 #include "FSHandler.h"
ICTFBI 0:4edb816d21e1 25
ICTFBI 0:4edb816d21e1 26 //#define __DEBUG
ICTFBI 0:4edb816d21e1 27 #include "dbg/dbg.h"
ICTFBI 0:4edb816d21e1 28
ICTFBI 0:4edb816d21e1 29 #define CHUNK_SIZE 128
ICTFBI 0:4edb816d21e1 30
ICTFBI 0:4edb816d21e1 31 #define DEFAULT_PAGE "/index.htm"
ICTFBI 0:4edb816d21e1 32
ICTFBI 0:4edb816d21e1 33 FSHandler::FSHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket) : HTTPRequestHandler(rootPath, path, pTCPSocket), m_err404(false)
ICTFBI 0:4edb816d21e1 34 {}
ICTFBI 0:4edb816d21e1 35
ICTFBI 0:4edb816d21e1 36 FSHandler::~FSHandler()
ICTFBI 0:4edb816d21e1 37 {
ICTFBI 0:4edb816d21e1 38 if(m_fp)
ICTFBI 0:4edb816d21e1 39 fclose(m_fp);
ICTFBI 0:4edb816d21e1 40 DBG("\r\nHandler destroyed\r\n");
ICTFBI 0:4edb816d21e1 41 }
ICTFBI 0:4edb816d21e1 42
ICTFBI 0:4edb816d21e1 43 //static init
ICTFBI 0:4edb816d21e1 44 map<string,string> FSHandler::m_lFsPath = map<string,string>();
ICTFBI 0:4edb816d21e1 45
ICTFBI 0:4edb816d21e1 46 void FSHandler::mount(const string& fsPath, const string& rootPath)
ICTFBI 0:4edb816d21e1 47 {
ICTFBI 0:4edb816d21e1 48 m_lFsPath[rootPath]=fsPath;
ICTFBI 0:4edb816d21e1 49 }
ICTFBI 0:4edb816d21e1 50
ICTFBI 0:4edb816d21e1 51 void FSHandler::doGet()
ICTFBI 0:4edb816d21e1 52 {
ICTFBI 0:4edb816d21e1 53 DBG("\r\nIn FSHandler::doGet() - rootPath=%s, path=%s\r\n", rootPath().c_str(), path().c_str());
ICTFBI 0:4edb816d21e1 54 //FIXME: Translate path to local/path
ICTFBI 0:4edb816d21e1 55 string checkedRootPath = rootPath();
ICTFBI 0:4edb816d21e1 56 if(checkedRootPath.empty())
ICTFBI 0:4edb816d21e1 57 checkedRootPath="/";
ICTFBI 0:4edb816d21e1 58 string filePath = m_lFsPath[checkedRootPath];
ICTFBI 0:4edb816d21e1 59 if (path().size() > 1)
ICTFBI 0:4edb816d21e1 60 {
ICTFBI 0:4edb816d21e1 61 filePath += path();
ICTFBI 0:4edb816d21e1 62 }
ICTFBI 0:4edb816d21e1 63 else
ICTFBI 0:4edb816d21e1 64 {
ICTFBI 0:4edb816d21e1 65 filePath += DEFAULT_PAGE;
ICTFBI 0:4edb816d21e1 66 }
ICTFBI 0:4edb816d21e1 67
ICTFBI 0:4edb816d21e1 68 DBG("Trying to open %s\n", filePath.c_str());
ICTFBI 0:4edb816d21e1 69
ICTFBI 0:4edb816d21e1 70 m_fp = fopen(filePath.c_str(), "r"); //FIXME: if null, error 404
ICTFBI 0:4edb816d21e1 71
ICTFBI 0:4edb816d21e1 72 if(!m_fp)
ICTFBI 0:4edb816d21e1 73 {
ICTFBI 0:4edb816d21e1 74 m_err404 = true;
ICTFBI 0:4edb816d21e1 75 setErrCode(404);
ICTFBI 0:4edb816d21e1 76 const char* msg = "File not found.";
ICTFBI 0:4edb816d21e1 77 setContentLen(strlen(msg));
ICTFBI 0:4edb816d21e1 78 respHeaders()["Content-Type"] = "text/html";
ICTFBI 0:4edb816d21e1 79 respHeaders()["Connection"] = "close";
ICTFBI 0:4edb816d21e1 80 writeData(msg,strlen(msg)); //Only send header
ICTFBI 0:4edb816d21e1 81 DBG("\r\nExit FSHandler::doGet() w Error 404\r\n");
ICTFBI 0:4edb816d21e1 82 return;
ICTFBI 0:4edb816d21e1 83 }
ICTFBI 0:4edb816d21e1 84
ICTFBI 0:4edb816d21e1 85 //Seek EOF to get length
ICTFBI 0:4edb816d21e1 86 fseek(m_fp, 0, SEEK_END);
ICTFBI 0:4edb816d21e1 87 setContentLen( ftell(m_fp) );
ICTFBI 0:4edb816d21e1 88 fseek(m_fp, 0, SEEK_SET); //Goto SOF
ICTFBI 0:4edb816d21e1 89
ICTFBI 0:4edb816d21e1 90 respHeaders()["Connection"] = "close";
ICTFBI 0:4edb816d21e1 91 onWriteable();
ICTFBI 0:4edb816d21e1 92 DBG("\r\nExit SimpleHandler::doGet()\r\n");
ICTFBI 0:4edb816d21e1 93 }
ICTFBI 0:4edb816d21e1 94
ICTFBI 0:4edb816d21e1 95 void FSHandler::doPost()
ICTFBI 0:4edb816d21e1 96 {
ICTFBI 0:4edb816d21e1 97
ICTFBI 0:4edb816d21e1 98 }
ICTFBI 0:4edb816d21e1 99
ICTFBI 0:4edb816d21e1 100 void FSHandler::doHead()
ICTFBI 0:4edb816d21e1 101 {
ICTFBI 0:4edb816d21e1 102
ICTFBI 0:4edb816d21e1 103 }
ICTFBI 0:4edb816d21e1 104
ICTFBI 0:4edb816d21e1 105 void FSHandler::onReadable() //Data has been read
ICTFBI 0:4edb816d21e1 106 {
ICTFBI 0:4edb816d21e1 107
ICTFBI 0:4edb816d21e1 108 }
ICTFBI 0:4edb816d21e1 109
ICTFBI 0:4edb816d21e1 110 void FSHandler::onWriteable() //Data has been written & buf is free
ICTFBI 0:4edb816d21e1 111 {
ICTFBI 0:4edb816d21e1 112 DBG("\r\nFSHandler::onWriteable() event\r\n");
ICTFBI 0:4edb816d21e1 113 if(m_err404)
ICTFBI 0:4edb816d21e1 114 {
ICTFBI 0:4edb816d21e1 115 //Error has been served, now exit
ICTFBI 0:4edb816d21e1 116 close();
ICTFBI 0:4edb816d21e1 117 return;
ICTFBI 0:4edb816d21e1 118 }
ICTFBI 0:4edb816d21e1 119
ICTFBI 0:4edb816d21e1 120 static char rBuf[CHUNK_SIZE];
ICTFBI 0:4edb816d21e1 121 while(true)
ICTFBI 0:4edb816d21e1 122 {
ICTFBI 0:4edb816d21e1 123 int len = fread(rBuf, 1, CHUNK_SIZE, m_fp);
ICTFBI 0:4edb816d21e1 124 if(len>0)
ICTFBI 0:4edb816d21e1 125 {
ICTFBI 0:4edb816d21e1 126 int writtenLen = writeData(rBuf, len);
ICTFBI 0:4edb816d21e1 127 if(writtenLen < 0) //Socket error
ICTFBI 0:4edb816d21e1 128 {
ICTFBI 0:4edb816d21e1 129 DBG("FSHandler: Socket error %d\n", writtenLen);
ICTFBI 0:4edb816d21e1 130 if(writtenLen == TCPSOCKET_MEM)
ICTFBI 0:4edb816d21e1 131 {
ICTFBI 0:4edb816d21e1 132 fseek(m_fp, -len, SEEK_CUR);
ICTFBI 0:4edb816d21e1 133 return; //Wait for the queued TCP segments to be transmitted
ICTFBI 0:4edb816d21e1 134 }
ICTFBI 0:4edb816d21e1 135 else
ICTFBI 0:4edb816d21e1 136 {
ICTFBI 0:4edb816d21e1 137 //This is a critical error
ICTFBI 0:4edb816d21e1 138 close();
ICTFBI 0:4edb816d21e1 139 return;
ICTFBI 0:4edb816d21e1 140 }
ICTFBI 0:4edb816d21e1 141 }
ICTFBI 0:4edb816d21e1 142 else if(writtenLen < len) //Short write, socket's buffer is full
ICTFBI 0:4edb816d21e1 143 {
ICTFBI 0:4edb816d21e1 144 fseek(m_fp, writtenLen - len, SEEK_CUR);
ICTFBI 0:4edb816d21e1 145 return;
ICTFBI 0:4edb816d21e1 146 }
ICTFBI 0:4edb816d21e1 147 }
ICTFBI 0:4edb816d21e1 148 else
ICTFBI 0:4edb816d21e1 149 {
ICTFBI 0:4edb816d21e1 150 close(); //Data written, we can close the connection
ICTFBI 0:4edb816d21e1 151 return;
ICTFBI 0:4edb816d21e1 152 }
ICTFBI 0:4edb816d21e1 153 }
ICTFBI 0:4edb816d21e1 154 }
ICTFBI 0:4edb816d21e1 155
ICTFBI 0:4edb816d21e1 156 void FSHandler::onClose() //Connection is closing
ICTFBI 0:4edb816d21e1 157 {
ICTFBI 0:4edb816d21e1 158 if(m_fp)
ICTFBI 0:4edb816d21e1 159 fclose(m_fp);
ICTFBI 0:4edb816d21e1 160 }