Renesas / HttpServer_snapshot_mbed-os

HttpServer Library for "mbed-os" which added a snapshot handler.

Dependents:   GR-PEACH-webcam GR-Boards_WebCamera GR-Boards_WebCamera GR-Boards_WebCamera

Fork of HttpServer_snapshot by Renesas

Handler/FSHandler.cpp@4:1b6b021ee21d, 2014-02-21 (annotated)

Committer:
yueee_yt
Date:
Fri Feb 21 07:10:30 2014 +0000
Revision:
4:1b6b021ee21d
Parent:
0:fdf9c2c5200f
Child:
5:b8f6a11c70db
BugFix (JavaScript RPC Support (Not Cookbook js))

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yueee_yt 0:fdf9c2c5200f 1 /*
yueee_yt 0:fdf9c2c5200f 2 Permission is hereby granted, free of charge, to any person obtaining a copy
yueee_yt 0:fdf9c2c5200f 3 of this software and associated documentation files (the "Software"), to deal
yueee_yt 0:fdf9c2c5200f 4 in the Software without restriction, including without limitation the rights
yueee_yt 0:fdf9c2c5200f 5 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
yueee_yt 0:fdf9c2c5200f 6 copies of the Software, and to permit persons to whom the Software is
yueee_yt 0:fdf9c2c5200f 7 furnished to do so, subject to the following conditions:
yueee_yt 4:1b6b021ee21d 8
yueee_yt 0:fdf9c2c5200f 9 The above copyright notice and this permission notice shall be included in
yueee_yt 0:fdf9c2c5200f 10 all copies or substantial portions of the Software.
yueee_yt 4:1b6b021ee21d 11
yueee_yt 0:fdf9c2c5200f 12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
yueee_yt 0:fdf9c2c5200f 13 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
yueee_yt 0:fdf9c2c5200f 14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
yueee_yt 0:fdf9c2c5200f 15 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
yueee_yt 0:fdf9c2c5200f 16 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
yueee_yt 0:fdf9c2c5200f 17 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
yueee_yt 0:fdf9c2c5200f 18 THE SOFTWARE.
yueee_yt 0:fdf9c2c5200f 19 */
yueee_yt 4:1b6b021ee21d 20 #ifdef _DEBUG_ALL
yueee_yt 4:1b6b021ee21d 21 #define _DEBUG_FS_HANDLER
yueee_yt 4:1b6b021ee21d 22 #endif
yueee_yt 0:fdf9c2c5200f 23
yueee_yt 0:fdf9c2c5200f 24 #include "FSHandler.h"
yueee_yt 0:fdf9c2c5200f 25
yueee_yt 0:fdf9c2c5200f 26 //#define __DEBUG
yueee_yt 0:fdf9c2c5200f 27 //#include "dbg/dbg.h"
yueee_yt 0:fdf9c2c5200f 28
yueee_yt 0:fdf9c2c5200f 29 #define CHUNK_SIZE 128
yueee_yt 0:fdf9c2c5200f 30
yueee_yt 0:fdf9c2c5200f 31 #define DEFAULT_PAGE "/index.htm"
yueee_yt 0:fdf9c2c5200f 32
yueee_yt 0:fdf9c2c5200f 33 //*FSHandler::FSHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket) : HTTPRequestHandler(rootPath, path, pTCPSocket), m_err404(false)
yueee_yt 0:fdf9c2c5200f 34 FSHandler::FSHandler(const char* rootPath, const char* path, TCPSocketConnection* pTCPSocketConnection) : HTTPRequestHandler(rootPath, path, pTCPSocketConnection), m_err404(false)
yueee_yt 0:fdf9c2c5200f 35 {}
yueee_yt 0:fdf9c2c5200f 36
yueee_yt 0:fdf9c2c5200f 37 FSHandler::~FSHandler()
yueee_yt 0:fdf9c2c5200f 38 {
yueee_yt 4:1b6b021ee21d 39 if(m_fp)
yueee_yt 4:1b6b021ee21d 40 fclose(m_fp);
yueee_yt 4:1b6b021ee21d 41 #ifdef _DEBUG_FS_HANDLER
yueee_yt 4:1b6b021ee21d 42 printf("\r\nHandler destroyed\r\n");
yueee_yt 4:1b6b021ee21d 43 #endif
yueee_yt 0:fdf9c2c5200f 44 }
yueee_yt 0:fdf9c2c5200f 45
yueee_yt 0:fdf9c2c5200f 46 //static init
yueee_yt 0:fdf9c2c5200f 47 map<string,string> FSHandler::m_lFsPath = map<string,string>();
yueee_yt 0:fdf9c2c5200f 48
yueee_yt 0:fdf9c2c5200f 49 void FSHandler::mount(const string& fsPath, const string& rootPath)
yueee_yt 0:fdf9c2c5200f 50 {
yueee_yt 4:1b6b021ee21d 51 m_lFsPath[rootPath]=fsPath;
yueee_yt 0:fdf9c2c5200f 52 }
yueee_yt 0:fdf9c2c5200f 53
yueee_yt 0:fdf9c2c5200f 54 void FSHandler::doGet()
yueee_yt 0:fdf9c2c5200f 55 {
yueee_yt 4:1b6b021ee21d 56 #ifdef _DEBUG_FS_HANDLER
yueee_yt 4:1b6b021ee21d 57 printf("\r\nIn FSHandler::doGet() - rootPath=%s, path=%s\r\n", rootPath().c_str(), path().c_str());
yueee_yt 4:1b6b021ee21d 58 #endif
yueee_yt 4:1b6b021ee21d 59 //FIXME: Translate path to local/path
yueee_yt 4:1b6b021ee21d 60 string checkedRootPath = rootPath();
yueee_yt 4:1b6b021ee21d 61 if(checkedRootPath.empty())
yueee_yt 4:1b6b021ee21d 62 checkedRootPath="/";
yueee_yt 4:1b6b021ee21d 63 string filePath = m_lFsPath[checkedRootPath];
yueee_yt 4:1b6b021ee21d 64 if (path().size() > 1) {
yueee_yt 4:1b6b021ee21d 65 filePath += path();
yueee_yt 4:1b6b021ee21d 66 } else {
yueee_yt 4:1b6b021ee21d 67 filePath += DEFAULT_PAGE;
yueee_yt 4:1b6b021ee21d 68 }
yueee_yt 4:1b6b021ee21d 69 #ifdef _DEBUG_FS_HANDLER
yueee_yt 4:1b6b021ee21d 70 printf("Trying to open %s\n", filePath.c_str());
yueee_yt 4:1b6b021ee21d 71 #endif
yueee_yt 4:1b6b021ee21d 72 m_fp = fopen(filePath.c_str(), "r"); //FIXME: if null, error 404
yueee_yt 0:fdf9c2c5200f 73
yueee_yt 4:1b6b021ee21d 74 if(!m_fp) {
yueee_yt 4:1b6b021ee21d 75 m_err404 = true;
yueee_yt 4:1b6b021ee21d 76 setErrCode(404);
yueee_yt 4:1b6b021ee21d 77 const char* msg = "File not found.";
yueee_yt 4:1b6b021ee21d 78 setContentLen(strlen(msg));
yueee_yt 4:1b6b021ee21d 79 respHeaders()["Content-Type"] = "text/html";
yueee_yt 4:1b6b021ee21d 80 respHeaders()["Connection"] = "close";
yueee_yt 4:1b6b021ee21d 81 writeData(msg,strlen(msg)); //Only send header
yueee_yt 4:1b6b021ee21d 82 printf("\r\nExit FSHandler::doGet() w Error 404\r\n");
yueee_yt 4:1b6b021ee21d 83 return;
yueee_yt 4:1b6b021ee21d 84 }
yueee_yt 4:1b6b021ee21d 85
yueee_yt 4:1b6b021ee21d 86 //Seek EOF to get length
yueee_yt 4:1b6b021ee21d 87 fseek(m_fp, 0, SEEK_END);
yueee_yt 4:1b6b021ee21d 88 setContentLen( ftell(m_fp) );
yueee_yt 4:1b6b021ee21d 89 fseek(m_fp, 0, SEEK_SET); //Goto SOF
yueee_yt 4:1b6b021ee21d 90
yueee_yt 0:fdf9c2c5200f 91 respHeaders()["Connection"] = "close";
yueee_yt 4:1b6b021ee21d 92 onWriteable();
yueee_yt 4:1b6b021ee21d 93 #ifdef _DEBUG_FS_HANDLER
yueee_yt 4:1b6b021ee21d 94 printf("\r\nExit SimpleHandler::doGet()\r\n");
yueee_yt 4:1b6b021ee21d 95 #endif
yueee_yt 0:fdf9c2c5200f 96 }
yueee_yt 0:fdf9c2c5200f 97
yueee_yt 0:fdf9c2c5200f 98 void FSHandler::doPost()
yueee_yt 0:fdf9c2c5200f 99 {
yueee_yt 0:fdf9c2c5200f 100
yueee_yt 0:fdf9c2c5200f 101 }
yueee_yt 0:fdf9c2c5200f 102
yueee_yt 0:fdf9c2c5200f 103 void FSHandler::doHead()
yueee_yt 0:fdf9c2c5200f 104 {
yueee_yt 0:fdf9c2c5200f 105
yueee_yt 0:fdf9c2c5200f 106 }
yueee_yt 0:fdf9c2c5200f 107
yueee_yt 0:fdf9c2c5200f 108 void FSHandler::onReadable() //Data has been read
yueee_yt 0:fdf9c2c5200f 109 {
yueee_yt 0:fdf9c2c5200f 110
yueee_yt 0:fdf9c2c5200f 111 }
yueee_yt 0:fdf9c2c5200f 112
yueee_yt 0:fdf9c2c5200f 113 void FSHandler::onWriteable() //Data has been written & buf is free
yueee_yt 0:fdf9c2c5200f 114 {
yueee_yt 4:1b6b021ee21d 115 #ifdef _DEBUG_FS_HANDLER
yueee_yt 4:1b6b021ee21d 116 printf("\r\nFSHandler::onWriteable() event\r\n");
yueee_yt 4:1b6b021ee21d 117 #endif
yueee_yt 4:1b6b021ee21d 118 if(m_err404) {
yueee_yt 4:1b6b021ee21d 119 //Error has been served, now exit
yueee_yt 4:1b6b021ee21d 120 close();
yueee_yt 4:1b6b021ee21d 121 return;
yueee_yt 4:1b6b021ee21d 122 }
yueee_yt 4:1b6b021ee21d 123
yueee_yt 4:1b6b021ee21d 124 static char rBuf[CHUNK_SIZE];
yueee_yt 4:1b6b021ee21d 125 while(true) {
yueee_yt 4:1b6b021ee21d 126 int len = fread(rBuf, 1, CHUNK_SIZE, m_fp);
yueee_yt 4:1b6b021ee21d 127 if(len>0) {
yueee_yt 4:1b6b021ee21d 128 int writtenLen = writeData(rBuf, len);
yueee_yt 4:1b6b021ee21d 129 if(writtenLen < 0) { //Socket error
yueee_yt 4:1b6b021ee21d 130 #ifdef _DEBUG_FS_HANDLER
yueee_yt 4:1b6b021ee21d 131 printf("FSHandler: Socket error %d\n", writtenLen);
yueee_yt 4:1b6b021ee21d 132 #endif
yueee_yt 4:1b6b021ee21d 133 /** Not Work
yueee_yt 4:1b6b021ee21d 134 if(writtenLen == TCPSOCKET_MEM) {
yueee_yt 4:1b6b021ee21d 135 fseek(m_fp, -len, SEEK_CUR);
yueee_yt 4:1b6b021ee21d 136 return; //Wait for the queued TCP segments to be transmitted
yueee_yt 4:1b6b021ee21d 137 } else {
yueee_yt 4:1b6b021ee21d 138 //This is a critical error
yueee_yt 4:1b6b021ee21d 139 close();
yueee_yt 4:1b6b021ee21d 140 return;
yueee_yt 4:1b6b021ee21d 141 }
yueee_yt 4:1b6b021ee21d 142 **/
yueee_yt 4:1b6b021ee21d 143 } else if(writtenLen < len) { //Short write, socket's buffer is full
yueee_yt 4:1b6b021ee21d 144 fseek(m_fp, writtenLen - len, SEEK_CUR);
yueee_yt 4:1b6b021ee21d 145 return;
yueee_yt 4:1b6b021ee21d 146 }
yueee_yt 4:1b6b021ee21d 147 } else {
yueee_yt 4:1b6b021ee21d 148 close(); //Data written, we can close the connection
yueee_yt 4:1b6b021ee21d 149 return;
yueee_yt 0:fdf9c2c5200f 150 }
yueee_yt 0:fdf9c2c5200f 151 }
yueee_yt 0:fdf9c2c5200f 152 }
yueee_yt 0:fdf9c2c5200f 153
yueee_yt 0:fdf9c2c5200f 154 void FSHandler::onClose() //Connection is closing
yueee_yt 0:fdf9c2c5200f 155 {
yueee_yt 4:1b6b021ee21d 156 if(m_fp)
yueee_yt 4:1b6b021ee21d 157 fclose(m_fp);
yueee_yt 0:fdf9c2c5200f 158 }