Lorcan Smith / Mbed 2 deprecated Enet_SPI

SNMP agent attached to SPI slave

Dependencies:   mbed

services/http/server/impl/FSHandler.cpp@0:2a53a4c3238c, 2012-08-13 (annotated)

Committer:
lorcansmith
Date:
Mon Aug 13 15:07:40 2012 +0000
Revision:
0:2a53a4c3238c
v1.1 release includes ioAlarm traps

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lorcansmith 0:2a53a4c3238c 1
lorcansmith 0:2a53a4c3238c 2 /*
lorcansmith 0:2a53a4c3238c 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
lorcansmith 0:2a53a4c3238c 4
lorcansmith 0:2a53a4c3238c 5 Permission is hereby granted, free of charge, to any person obtaining a copy
lorcansmith 0:2a53a4c3238c 6 of this software and associated documentation files (the "Software"), to deal
lorcansmith 0:2a53a4c3238c 7 in the Software without restriction, including without limitation the rights
lorcansmith 0:2a53a4c3238c 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
lorcansmith 0:2a53a4c3238c 9 copies of the Software, and to permit persons to whom the Software is
lorcansmith 0:2a53a4c3238c 10 furnished to do so, subject to the following conditions:
lorcansmith 0:2a53a4c3238c 11
lorcansmith 0:2a53a4c3238c 12 The above copyright notice and this permission notice shall be included in
lorcansmith 0:2a53a4c3238c 13 all copies or substantial portions of the Software.
lorcansmith 0:2a53a4c3238c 14
lorcansmith 0:2a53a4c3238c 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
lorcansmith 0:2a53a4c3238c 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
lorcansmith 0:2a53a4c3238c 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
lorcansmith 0:2a53a4c3238c 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
lorcansmith 0:2a53a4c3238c 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
lorcansmith 0:2a53a4c3238c 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
lorcansmith 0:2a53a4c3238c 21 THE SOFTWARE.
lorcansmith 0:2a53a4c3238c 22 */
lorcansmith 0:2a53a4c3238c 23
lorcansmith 0:2a53a4c3238c 24 #include "FSHandler.h"
lorcansmith 0:2a53a4c3238c 25
lorcansmith 0:2a53a4c3238c 26 //#define __DEBUG
lorcansmith 0:2a53a4c3238c 27 #include "dbg/dbg.h"
lorcansmith 0:2a53a4c3238c 28
lorcansmith 0:2a53a4c3238c 29 #define CHUNK_SIZE 128
lorcansmith 0:2a53a4c3238c 30
lorcansmith 0:2a53a4c3238c 31 #define DEFAULT_PAGE "/index.htm"
lorcansmith 0:2a53a4c3238c 32
lorcansmith 0:2a53a4c3238c 33 FSHandler::FSHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket) : HTTPRequestHandler(rootPath, path, pTCPSocket), m_err404(false)
lorcansmith 0:2a53a4c3238c 34 {}
lorcansmith 0:2a53a4c3238c 35
lorcansmith 0:2a53a4c3238c 36 FSHandler::~FSHandler()
lorcansmith 0:2a53a4c3238c 37 {
lorcansmith 0:2a53a4c3238c 38 if(m_fp)
lorcansmith 0:2a53a4c3238c 39 fclose(m_fp);
lorcansmith 0:2a53a4c3238c 40 DBG("\r\nHandler destroyed\r\n");
lorcansmith 0:2a53a4c3238c 41 }
lorcansmith 0:2a53a4c3238c 42
lorcansmith 0:2a53a4c3238c 43 //static init
lorcansmith 0:2a53a4c3238c 44 map<string,string> FSHandler::m_lFsPath = map<string,string>();
lorcansmith 0:2a53a4c3238c 45
lorcansmith 0:2a53a4c3238c 46 void FSHandler::mount(const string& fsPath, const string& rootPath)
lorcansmith 0:2a53a4c3238c 47 {
lorcansmith 0:2a53a4c3238c 48 m_lFsPath[rootPath]=fsPath;
lorcansmith 0:2a53a4c3238c 49 }
lorcansmith 0:2a53a4c3238c 50
lorcansmith 0:2a53a4c3238c 51 void FSHandler::doGet()
lorcansmith 0:2a53a4c3238c 52 {
lorcansmith 0:2a53a4c3238c 53 DBG("\r\nIn FSHandler::doGet() - rootPath=%s, path=%s\r\n", rootPath().c_str(), path().c_str());
lorcansmith 0:2a53a4c3238c 54 fsvr.update_IO_file();
lorcansmith 0:2a53a4c3238c 55
lorcansmith 0:2a53a4c3238c 56 //FIXME: Translate path to local/path
lorcansmith 0:2a53a4c3238c 57 string checkedRootPath = rootPath();
lorcansmith 0:2a53a4c3238c 58 if(checkedRootPath.empty())
lorcansmith 0:2a53a4c3238c 59 checkedRootPath="/";
lorcansmith 0:2a53a4c3238c 60 string filePath = m_lFsPath[checkedRootPath];
lorcansmith 0:2a53a4c3238c 61 if (path().size() > 1)
lorcansmith 0:2a53a4c3238c 62 {
lorcansmith 0:2a53a4c3238c 63 filePath += path();
lorcansmith 0:2a53a4c3238c 64 }
lorcansmith 0:2a53a4c3238c 65 else
lorcansmith 0:2a53a4c3238c 66 {
lorcansmith 0:2a53a4c3238c 67 filePath += DEFAULT_PAGE;
lorcansmith 0:2a53a4c3238c 68 }
lorcansmith 0:2a53a4c3238c 69
lorcansmith 0:2a53a4c3238c 70 DBG("Trying to open %s\n", filePath.c_str());
lorcansmith 0:2a53a4c3238c 71
lorcansmith 0:2a53a4c3238c 72 m_fp = fopen(filePath.c_str(), "r"); //FIXME: if null, error 404
lorcansmith 0:2a53a4c3238c 73
lorcansmith 0:2a53a4c3238c 74 if(!m_fp)
lorcansmith 0:2a53a4c3238c 75 {
lorcansmith 0:2a53a4c3238c 76 m_err404 = true;
lorcansmith 0:2a53a4c3238c 77 setErrCode(404);
lorcansmith 0:2a53a4c3238c 78 const char* msg = "File not found.";
lorcansmith 0:2a53a4c3238c 79 setContentLen(strlen(msg));
lorcansmith 0:2a53a4c3238c 80 respHeaders()["Content-Type"] = "text/html";
lorcansmith 0:2a53a4c3238c 81 respHeaders()["Connection"] = "close";
lorcansmith 0:2a53a4c3238c 82 writeData(msg,strlen(msg)); //Only send header
lorcansmith 0:2a53a4c3238c 83 DBG("\r\nExit FSHandler::doGet() w Error 404\r\n");
lorcansmith 0:2a53a4c3238c 84 return;
lorcansmith 0:2a53a4c3238c 85 }
lorcansmith 0:2a53a4c3238c 86
lorcansmith 0:2a53a4c3238c 87 //Seek EOF to get length
lorcansmith 0:2a53a4c3238c 88 fseek(m_fp, 0, SEEK_END);
lorcansmith 0:2a53a4c3238c 89 setContentLen( ftell(m_fp) );
lorcansmith 0:2a53a4c3238c 90 fseek(m_fp, 0, SEEK_SET); //Goto SOF
lorcansmith 0:2a53a4c3238c 91
lorcansmith 0:2a53a4c3238c 92 respHeaders()["Connection"] = "close";
lorcansmith 0:2a53a4c3238c 93 onWriteable();
lorcansmith 0:2a53a4c3238c 94 DBG("\r\nExit SimpleHandler::doGet()\r\n");
lorcansmith 0:2a53a4c3238c 95 }
lorcansmith 0:2a53a4c3238c 96
lorcansmith 0:2a53a4c3238c 97 void FSHandler::doPost()
lorcansmith 0:2a53a4c3238c 98 {
lorcansmith 0:2a53a4c3238c 99
lorcansmith 0:2a53a4c3238c 100 }
lorcansmith 0:2a53a4c3238c 101
lorcansmith 0:2a53a4c3238c 102 void FSHandler::doHead()
lorcansmith 0:2a53a4c3238c 103 {
lorcansmith 0:2a53a4c3238c 104
lorcansmith 0:2a53a4c3238c 105 }
lorcansmith 0:2a53a4c3238c 106
lorcansmith 0:2a53a4c3238c 107 void FSHandler::onReadable() //Data has been read
lorcansmith 0:2a53a4c3238c 108 {
lorcansmith 0:2a53a4c3238c 109
lorcansmith 0:2a53a4c3238c 110 }
lorcansmith 0:2a53a4c3238c 111
lorcansmith 0:2a53a4c3238c 112 void FSHandler::onWriteable() //Data has been written & buf is free
lorcansmith 0:2a53a4c3238c 113 {
lorcansmith 0:2a53a4c3238c 114 DBG("\r\nFSHandler::onWriteable() event\r\n");
lorcansmith 0:2a53a4c3238c 115 if(m_err404)
lorcansmith 0:2a53a4c3238c 116 {
lorcansmith 0:2a53a4c3238c 117 //Error has been served, now exit
lorcansmith 0:2a53a4c3238c 118 close();
lorcansmith 0:2a53a4c3238c 119 return;
lorcansmith 0:2a53a4c3238c 120 }
lorcansmith 0:2a53a4c3238c 121
lorcansmith 0:2a53a4c3238c 122 static char rBuf[CHUNK_SIZE];
lorcansmith 0:2a53a4c3238c 123 while(true)
lorcansmith 0:2a53a4c3238c 124 {
lorcansmith 0:2a53a4c3238c 125 int len = fread(rBuf, 1, CHUNK_SIZE, m_fp);
lorcansmith 0:2a53a4c3238c 126 if(len>0)
lorcansmith 0:2a53a4c3238c 127 {
lorcansmith 0:2a53a4c3238c 128 int writtenLen = writeData(rBuf, len);
lorcansmith 0:2a53a4c3238c 129 if(writtenLen < 0) //Socket error
lorcansmith 0:2a53a4c3238c 130 {
lorcansmith 0:2a53a4c3238c 131 DBG("FSHandler: Socket error %d\n", writtenLen);
lorcansmith 0:2a53a4c3238c 132 if(writtenLen == TCPSOCKET_MEM)
lorcansmith 0:2a53a4c3238c 133 {
lorcansmith 0:2a53a4c3238c 134 fseek(m_fp, -len, SEEK_CUR);
lorcansmith 0:2a53a4c3238c 135 return; //Wait for the queued TCP segments to be transmitted
lorcansmith 0:2a53a4c3238c 136 }
lorcansmith 0:2a53a4c3238c 137 else
lorcansmith 0:2a53a4c3238c 138 {
lorcansmith 0:2a53a4c3238c 139 //This is a critical error
lorcansmith 0:2a53a4c3238c 140 close();
lorcansmith 0:2a53a4c3238c 141 return;
lorcansmith 0:2a53a4c3238c 142 }
lorcansmith 0:2a53a4c3238c 143 }
lorcansmith 0:2a53a4c3238c 144 else if(writtenLen < len) //Short write, socket's buffer is full
lorcansmith 0:2a53a4c3238c 145 {
lorcansmith 0:2a53a4c3238c 146 fseek(m_fp, writtenLen - len, SEEK_CUR);
lorcansmith 0:2a53a4c3238c 147 return;
lorcansmith 0:2a53a4c3238c 148 }
lorcansmith 0:2a53a4c3238c 149 }
lorcansmith 0:2a53a4c3238c 150 else
lorcansmith 0:2a53a4c3238c 151 {
lorcansmith 0:2a53a4c3238c 152 close(); //Data written, we can close the connection
lorcansmith 0:2a53a4c3238c 153 return;
lorcansmith 0:2a53a4c3238c 154 }
lorcansmith 0:2a53a4c3238c 155 }
lorcansmith 0:2a53a4c3238c 156 }
lorcansmith 0:2a53a4c3238c 157
lorcansmith 0:2a53a4c3238c 158 void FSHandler::onClose() //Connection is closing
lorcansmith 0:2a53a4c3238c 159 {
lorcansmith 0:2a53a4c3238c 160 if(m_fp)
lorcansmith 0:2a53a4c3238c 161 fclose(m_fp);
lorcansmith 0:2a53a4c3238c 162 }