Paul Record
This version has the index file and data pages on a SD card (512Mbyte) it does not suffer from the autorun problem when directly writtin to the mbed flash memory It makes readings from one solar panel for open and loaded voltages every 'interval' seconds Every readingsPerPage a new web page is created and indexed on a readings web page Activty is shown by the flashing blue led (0.5s) means it is connected and output via the serial over usb port. Data is preserved on subsequent power ups by incrementing file number. PMR 15/9/10 */
Dependencies: EthernetNetIf NTPClient_NetServices mbed SDFileSystem
server/impl/FSHandler.cpp@0:d6b2d5c4c48f, 2010-09-18 (annotated)
- Committer:
- pmr1
- Date:
- Sat Sep 18 13:31:41 2010 +0000
- Revision:
- 0:d6b2d5c4c48f
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| pmr1 | 0:d6b2d5c4c48f | 1 | |
| pmr1 | 0:d6b2d5c4c48f | 2 | /* |
| pmr1 | 0:d6b2d5c4c48f | 3 | Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) |
| pmr1 | 0:d6b2d5c4c48f | 4 | |
| pmr1 | 0:d6b2d5c4c48f | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| pmr1 | 0:d6b2d5c4c48f | 6 | of this software and associated documentation files (the "Software"), to deal |
| pmr1 | 0:d6b2d5c4c48f | 7 | in the Software without restriction, including without limitation the rights |
| pmr1 | 0:d6b2d5c4c48f | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| pmr1 | 0:d6b2d5c4c48f | 9 | copies of the Software, and to permit persons to whom the Software is |
| pmr1 | 0:d6b2d5c4c48f | 10 | furnished to do so, subject to the following conditions: |
| pmr1 | 0:d6b2d5c4c48f | 11 | |
| pmr1 | 0:d6b2d5c4c48f | 12 | The above copyright notice and this permission notice shall be included in |
| pmr1 | 0:d6b2d5c4c48f | 13 | all copies or substantial portions of the Software. |
| pmr1 | 0:d6b2d5c4c48f | 14 | |
| pmr1 | 0:d6b2d5c4c48f | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| pmr1 | 0:d6b2d5c4c48f | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| pmr1 | 0:d6b2d5c4c48f | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| pmr1 | 0:d6b2d5c4c48f | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| pmr1 | 0:d6b2d5c4c48f | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| pmr1 | 0:d6b2d5c4c48f | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| pmr1 | 0:d6b2d5c4c48f | 21 | THE SOFTWARE. |
| pmr1 | 0:d6b2d5c4c48f | 22 | */ |
| pmr1 | 0:d6b2d5c4c48f | 23 | |
| pmr1 | 0:d6b2d5c4c48f | 24 | #include "FSHandler.h" |
| pmr1 | 0:d6b2d5c4c48f | 25 | |
| pmr1 | 0:d6b2d5c4c48f | 26 | //#define __DEBUG |
| pmr1 | 0:d6b2d5c4c48f | 27 | #include "dbg/dbg.h" |
| pmr1 | 0:d6b2d5c4c48f | 28 | |
| pmr1 | 0:d6b2d5c4c48f | 29 | #define CHUNK_SIZE 128 |
| pmr1 | 0:d6b2d5c4c48f | 30 | |
| pmr1 | 0:d6b2d5c4c48f | 31 | #define DEFAULT_PAGE "/index.htm" |
| pmr1 | 0:d6b2d5c4c48f | 32 | |
| pmr1 | 0:d6b2d5c4c48f | 33 | FSHandler::FSHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket) : HTTPRequestHandler(rootPath, path, pTCPSocket), m_err404(false) |
| pmr1 | 0:d6b2d5c4c48f | 34 | {} |
| pmr1 | 0:d6b2d5c4c48f | 35 | |
| pmr1 | 0:d6b2d5c4c48f | 36 | FSHandler::~FSHandler() |
| pmr1 | 0:d6b2d5c4c48f | 37 | { |
| pmr1 | 0:d6b2d5c4c48f | 38 | if(m_fp) |
| pmr1 | 0:d6b2d5c4c48f | 39 | fclose(m_fp); |
| pmr1 | 0:d6b2d5c4c48f | 40 | DBG("\r\nHandler destroyed\r\n"); |
| pmr1 | 0:d6b2d5c4c48f | 41 | } |
| pmr1 | 0:d6b2d5c4c48f | 42 | |
| pmr1 | 0:d6b2d5c4c48f | 43 | //static init |
| pmr1 | 0:d6b2d5c4c48f | 44 | map<string,string> FSHandler::m_lFsPath = map<string,string>(); |
| pmr1 | 0:d6b2d5c4c48f | 45 | |
| pmr1 | 0:d6b2d5c4c48f | 46 | void FSHandler::mount(const string& fsPath, const string& rootPath) |
| pmr1 | 0:d6b2d5c4c48f | 47 | { |
| pmr1 | 0:d6b2d5c4c48f | 48 | m_lFsPath[rootPath]=fsPath; |
| pmr1 | 0:d6b2d5c4c48f | 49 | } |
| pmr1 | 0:d6b2d5c4c48f | 50 | |
| pmr1 | 0:d6b2d5c4c48f | 51 | void FSHandler::doGet() |
| pmr1 | 0:d6b2d5c4c48f | 52 | { |
| pmr1 | 0:d6b2d5c4c48f | 53 | DBG("\r\nIn FSHandler::doGet() - rootPath=%s, path=%s\r\n", rootPath().c_str(), path().c_str()); |
| pmr1 | 0:d6b2d5c4c48f | 54 | //FIXME: Translate path to local/path |
| pmr1 | 0:d6b2d5c4c48f | 55 | string checkedRootPath = rootPath(); |
| pmr1 | 0:d6b2d5c4c48f | 56 | if(checkedRootPath.empty()) |
| pmr1 | 0:d6b2d5c4c48f | 57 | checkedRootPath="/"; |
| pmr1 | 0:d6b2d5c4c48f | 58 | string filePath = m_lFsPath[checkedRootPath]; |
| pmr1 | 0:d6b2d5c4c48f | 59 | if (path().size() > 1) |
| pmr1 | 0:d6b2d5c4c48f | 60 | { |
| pmr1 | 0:d6b2d5c4c48f | 61 | filePath += path(); |
| pmr1 | 0:d6b2d5c4c48f | 62 | } |
| pmr1 | 0:d6b2d5c4c48f | 63 | else |
| pmr1 | 0:d6b2d5c4c48f | 64 | { |
| pmr1 | 0:d6b2d5c4c48f | 65 | filePath += DEFAULT_PAGE; |
| pmr1 | 0:d6b2d5c4c48f | 66 | } |
| pmr1 | 0:d6b2d5c4c48f | 67 | |
| pmr1 | 0:d6b2d5c4c48f | 68 | DBG("Trying to open %s\n", filePath.c_str()); |
| pmr1 | 0:d6b2d5c4c48f | 69 | |
| pmr1 | 0:d6b2d5c4c48f | 70 | m_fp = fopen(filePath.c_str(), "r"); //FIXME: if null, error 404 |
| pmr1 | 0:d6b2d5c4c48f | 71 | |
| pmr1 | 0:d6b2d5c4c48f | 72 | if(!m_fp) |
| pmr1 | 0:d6b2d5c4c48f | 73 | { |
| pmr1 | 0:d6b2d5c4c48f | 74 | m_err404 = true; |
| pmr1 | 0:d6b2d5c4c48f | 75 | setErrCode(404); |
| pmr1 | 0:d6b2d5c4c48f | 76 | const char* msg = "File not found."; |
| pmr1 | 0:d6b2d5c4c48f | 77 | setContentLen(strlen(msg)); |
| pmr1 | 0:d6b2d5c4c48f | 78 | respHeaders()["Content-Type"] = "text/html"; |
| pmr1 | 0:d6b2d5c4c48f | 79 | respHeaders()["Connection"] = "close"; |
| pmr1 | 0:d6b2d5c4c48f | 80 | writeData(msg,strlen(msg)); //Only send header |
| pmr1 | 0:d6b2d5c4c48f | 81 | DBG("\r\nExit FSHandler::doGet() w Error 404\r\n"); |
| pmr1 | 0:d6b2d5c4c48f | 82 | return; |
| pmr1 | 0:d6b2d5c4c48f | 83 | } |
| pmr1 | 0:d6b2d5c4c48f | 84 | |
| pmr1 | 0:d6b2d5c4c48f | 85 | //Seek EOF to get length |
| pmr1 | 0:d6b2d5c4c48f | 86 | fseek(m_fp, 0, SEEK_END); |
| pmr1 | 0:d6b2d5c4c48f | 87 | setContentLen( ftell(m_fp) ); |
| pmr1 | 0:d6b2d5c4c48f | 88 | fseek(m_fp, 0, SEEK_SET); //Goto SOF |
| pmr1 | 0:d6b2d5c4c48f | 89 | |
| pmr1 | 0:d6b2d5c4c48f | 90 | respHeaders()["Connection"] = "close"; |
| pmr1 | 0:d6b2d5c4c48f | 91 | onWriteable(); |
| pmr1 | 0:d6b2d5c4c48f | 92 | DBG("\r\nExit SimpleHandler::doGet()\r\n"); |
| pmr1 | 0:d6b2d5c4c48f | 93 | } |
| pmr1 | 0:d6b2d5c4c48f | 94 | |
| pmr1 | 0:d6b2d5c4c48f | 95 | void FSHandler::doPost() |
| pmr1 | 0:d6b2d5c4c48f | 96 | { |
| pmr1 | 0:d6b2d5c4c48f | 97 | |
| pmr1 | 0:d6b2d5c4c48f | 98 | } |
| pmr1 | 0:d6b2d5c4c48f | 99 | |
| pmr1 | 0:d6b2d5c4c48f | 100 | void FSHandler::doHead() |
| pmr1 | 0:d6b2d5c4c48f | 101 | { |
| pmr1 | 0:d6b2d5c4c48f | 102 | |
| pmr1 | 0:d6b2d5c4c48f | 103 | } |
| pmr1 | 0:d6b2d5c4c48f | 104 | |
| pmr1 | 0:d6b2d5c4c48f | 105 | void FSHandler::onReadable() //Data has been read |
| pmr1 | 0:d6b2d5c4c48f | 106 | { |
| pmr1 | 0:d6b2d5c4c48f | 107 | |
| pmr1 | 0:d6b2d5c4c48f | 108 | } |
| pmr1 | 0:d6b2d5c4c48f | 109 | |
| pmr1 | 0:d6b2d5c4c48f | 110 | void FSHandler::onWriteable() //Data has been written & buf is free |
| pmr1 | 0:d6b2d5c4c48f | 111 | { |
| pmr1 | 0:d6b2d5c4c48f | 112 | DBG("\r\nFSHandler::onWriteable() event\r\n"); |
| pmr1 | 0:d6b2d5c4c48f | 113 | if(m_err404) |
| pmr1 | 0:d6b2d5c4c48f | 114 | { |
| pmr1 | 0:d6b2d5c4c48f | 115 | //Error has been served, now exit |
| pmr1 | 0:d6b2d5c4c48f | 116 | close(); |
| pmr1 | 0:d6b2d5c4c48f | 117 | return; |
| pmr1 | 0:d6b2d5c4c48f | 118 | } |
| pmr1 | 0:d6b2d5c4c48f | 119 | |
| pmr1 | 0:d6b2d5c4c48f | 120 | static char rBuf[CHUNK_SIZE]; |
| pmr1 | 0:d6b2d5c4c48f | 121 | while(true) |
| pmr1 | 0:d6b2d5c4c48f | 122 | { |
| pmr1 | 0:d6b2d5c4c48f | 123 | int len = fread(rBuf, 1, CHUNK_SIZE, m_fp); |
| pmr1 | 0:d6b2d5c4c48f | 124 | if(len>0) |
| pmr1 | 0:d6b2d5c4c48f | 125 | { |
| pmr1 | 0:d6b2d5c4c48f | 126 | int writtenLen = writeData(rBuf, len); |
| pmr1 | 0:d6b2d5c4c48f | 127 | if(writtenLen < 0) //Socket error |
| pmr1 | 0:d6b2d5c4c48f | 128 | { |
| pmr1 | 0:d6b2d5c4c48f | 129 | DBG("FSHandler: Socket error %d\n", writtenLen); |
| pmr1 | 0:d6b2d5c4c48f | 130 | if(writtenLen == TCPSOCKET_MEM) |
| pmr1 | 0:d6b2d5c4c48f | 131 | { |
| pmr1 | 0:d6b2d5c4c48f | 132 | fseek(m_fp, -len, SEEK_CUR); |
| pmr1 | 0:d6b2d5c4c48f | 133 | return; //Wait for the queued TCP segments to be transmitted |
| pmr1 | 0:d6b2d5c4c48f | 134 | } |
| pmr1 | 0:d6b2d5c4c48f | 135 | else |
| pmr1 | 0:d6b2d5c4c48f | 136 | { |
| pmr1 | 0:d6b2d5c4c48f | 137 | //This is a critical error |
| pmr1 | 0:d6b2d5c4c48f | 138 | close(); |
| pmr1 | 0:d6b2d5c4c48f | 139 | return; |
| pmr1 | 0:d6b2d5c4c48f | 140 | } |
| pmr1 | 0:d6b2d5c4c48f | 141 | } |
| pmr1 | 0:d6b2d5c4c48f | 142 | else if(writtenLen < len) //Short write, socket's buffer is full |
| pmr1 | 0:d6b2d5c4c48f | 143 | { |
| pmr1 | 0:d6b2d5c4c48f | 144 | fseek(m_fp, writtenLen - len, SEEK_CUR); |
| pmr1 | 0:d6b2d5c4c48f | 145 | return; |
| pmr1 | 0:d6b2d5c4c48f | 146 | } |
| pmr1 | 0:d6b2d5c4c48f | 147 | } |
| pmr1 | 0:d6b2d5c4c48f | 148 | else |
| pmr1 | 0:d6b2d5c4c48f | 149 | { |
| pmr1 | 0:d6b2d5c4c48f | 150 | close(); //Data written, we can close the connection |
| pmr1 | 0:d6b2d5c4c48f | 151 | return; |
| pmr1 | 0:d6b2d5c4c48f | 152 | } |
| pmr1 | 0:d6b2d5c4c48f | 153 | } |
| pmr1 | 0:d6b2d5c4c48f | 154 | } |
| pmr1 | 0:d6b2d5c4c48f | 155 | |
| pmr1 | 0:d6b2d5c4c48f | 156 | void FSHandler::onClose() //Connection is closing |
| pmr1 | 0:d6b2d5c4c48f | 157 | { |
| pmr1 | 0:d6b2d5c4c48f | 158 | if(m_fp) |
| pmr1 | 0:d6b2d5c4c48f | 159 | fclose(m_fp); |
| pmr1 | 0:d6b2d5c4c48f | 160 | } |