Embedded Artists / DM_HttpServer

Adaptation of the HttpServer by user yueee_yt. This version has improved handling of the HTTP headers (**NOTE**: There are limitations with this implementation and it is not fully functional. Use it only as a starting point.)

Dependents:   DMSupport DMSupport DMSupport DMSupport

Fork of DM_HttpServer by EmbeddedArtists AB

Handler/FSHandler.cpp@11:9dcff8cf906a, 2019-11-04 (annotated)

Committer:
embeddedartists
Date:
Mon Nov 04 14:29:37 2019 +0000
Revision:
11:9dcff8cf906a
Parent:
10:c1c8276af541 
More updates related to mbed OS 5

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 5:b8f6a11c70db 20 //#define _DEBUG_FS_HANDLER
yueee_yt 0:fdf9c2c5200f 21
yueee_yt 0:fdf9c2c5200f 22 #include "FSHandler.h"
embeddedartists 6:7b3320c34654 23 #include "DMBoard.h"
yueee_yt 0:fdf9c2c5200f 24
yueee_yt 0:fdf9c2c5200f 25 #define CHUNK_SIZE 128
yueee_yt 0:fdf9c2c5200f 26
yueee_yt 0:fdf9c2c5200f 27 #define DEFAULT_PAGE "/index.htm"
yueee_yt 0:fdf9c2c5200f 28
yueee_yt 0:fdf9c2c5200f 29 //*FSHandler::FSHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket) : HTTPRequestHandler(rootPath, path, pTCPSocket), m_err404(false)
embeddedartists 10:c1c8276af541 30 FSHandler::FSHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocketConnection) : HTTPRequestHandler(rootPath, path, pTCPSocketConnection), m_err404(false)
yueee_yt 0:fdf9c2c5200f 31 {}
yueee_yt 0:fdf9c2c5200f 32
yueee_yt 0:fdf9c2c5200f 33 FSHandler::~FSHandler()
yueee_yt 0:fdf9c2c5200f 34 {
yueee_yt 5:b8f6a11c70db 35 #ifdef _DEBUG_FS_HANDLER
embeddedartists 6:7b3320c34654 36 DMBoard::instance().logger()-> printf("\r\n+++FSHandler destroy\r\n");
yueee_yt 5:b8f6a11c70db 37 #endif
yueee_yt 5:b8f6a11c70db 38 if(m_fp){
yueee_yt 5:b8f6a11c70db 39 #ifdef _DEBUG_FS_HANDLER
embeddedartists 6:7b3320c34654 40 DMBoard::instance().logger()->printf("\r\n+++FSHandler fclose start\r\n");
yueee_yt 5:b8f6a11c70db 41 #endif
yueee_yt 4:1b6b021ee21d 42 fclose(m_fp);
yueee_yt 4:1b6b021ee21d 43 #ifdef _DEBUG_FS_HANDLER
embeddedartists 6:7b3320c34654 44 DMBoard::instance().logger()->printf("\r\n+++FSHandler fclose end\r\n");
yueee_yt 5:b8f6a11c70db 45 #endif
yueee_yt 5:b8f6a11c70db 46
yueee_yt 5:b8f6a11c70db 47 }
yueee_yt 5:b8f6a11c70db 48 #ifdef _DEBUG_FS_HANDLER
embeddedartists 6:7b3320c34654 49 DMBoard::instance().logger()->printf("\r\nHandler destroyed\r\n");
yueee_yt 4:1b6b021ee21d 50 #endif
yueee_yt 0:fdf9c2c5200f 51 }
yueee_yt 0:fdf9c2c5200f 52
yueee_yt 0:fdf9c2c5200f 53 //static init
yueee_yt 0:fdf9c2c5200f 54 map<string,string> FSHandler::m_lFsPath = map<string,string>();
yueee_yt 0:fdf9c2c5200f 55
yueee_yt 0:fdf9c2c5200f 56 void FSHandler::mount(const string& fsPath, const string& rootPath)
yueee_yt 0:fdf9c2c5200f 57 {
yueee_yt 4:1b6b021ee21d 58 m_lFsPath[rootPath]=fsPath;
yueee_yt 0:fdf9c2c5200f 59 }
yueee_yt 0:fdf9c2c5200f 60
yueee_yt 0:fdf9c2c5200f 61 void FSHandler::doGet()
yueee_yt 0:fdf9c2c5200f 62 {
yueee_yt 4:1b6b021ee21d 63 #ifdef _DEBUG_FS_HANDLER
embeddedartists 6:7b3320c34654 64 DMBoard::instance().logger()->printf("\r\nIn FSHandler::doGet() - rootPath=%s, path=%s\r\n", rootPath().c_str(), path().c_str());
yueee_yt 4:1b6b021ee21d 65 #endif
yueee_yt 4:1b6b021ee21d 66 //FIXME: Translate path to local/path
yueee_yt 4:1b6b021ee21d 67 string checkedRootPath = rootPath();
yueee_yt 4:1b6b021ee21d 68 if(checkedRootPath.empty())
yueee_yt 4:1b6b021ee21d 69 checkedRootPath="/";
yueee_yt 4:1b6b021ee21d 70 string filePath = m_lFsPath[checkedRootPath];
yueee_yt 4:1b6b021ee21d 71 if (path().size() > 1) {
yueee_yt 4:1b6b021ee21d 72 filePath += path();
yueee_yt 4:1b6b021ee21d 73 } else {
yueee_yt 4:1b6b021ee21d 74 filePath += DEFAULT_PAGE;
yueee_yt 4:1b6b021ee21d 75 }
yueee_yt 4:1b6b021ee21d 76 #ifdef _DEBUG_FS_HANDLER
embeddedartists 6:7b3320c34654 77 DMBoard::instance().logger()->printf("Trying to open %s\n", filePath.c_str());
yueee_yt 4:1b6b021ee21d 78 #endif
yueee_yt 4:1b6b021ee21d 79 m_fp = fopen(filePath.c_str(), "r"); //FIXME: if null, error 404
yueee_yt 0:fdf9c2c5200f 80
yueee_yt 4:1b6b021ee21d 81 if(!m_fp) {
yueee_yt 4:1b6b021ee21d 82 m_err404 = true;
yueee_yt 4:1b6b021ee21d 83 setErrCode(404);
yueee_yt 4:1b6b021ee21d 84 const char* msg = "File not found.";
yueee_yt 4:1b6b021ee21d 85 setContentLen(strlen(msg));
yueee_yt 4:1b6b021ee21d 86 respHeaders()["Content-Type"] = "text/html";
yueee_yt 4:1b6b021ee21d 87 respHeaders()["Connection"] = "close";
yueee_yt 4:1b6b021ee21d 88 writeData(msg,strlen(msg)); //Only send header
embeddedartists 6:7b3320c34654 89 DMBoard::instance().logger()->printf("\r\nExit FSHandler::doGet() w Error 404\r\n");
yueee_yt 4:1b6b021ee21d 90 return;
yueee_yt 4:1b6b021ee21d 91 }
yueee_yt 4:1b6b021ee21d 92
yueee_yt 4:1b6b021ee21d 93 //Seek EOF to get length
yueee_yt 4:1b6b021ee21d 94 fseek(m_fp, 0, SEEK_END);
yueee_yt 4:1b6b021ee21d 95 setContentLen( ftell(m_fp) );
yueee_yt 4:1b6b021ee21d 96 fseek(m_fp, 0, SEEK_SET); //Goto SOF
yueee_yt 4:1b6b021ee21d 97
yueee_yt 0:fdf9c2c5200f 98 respHeaders()["Connection"] = "close";
yueee_yt 4:1b6b021ee21d 99 onWriteable();
yueee_yt 4:1b6b021ee21d 100 #ifdef _DEBUG_FS_HANDLER
embeddedartists 7:ee7af5de4b95 101 DMBoard::instance().logger()->printf("\r\nExit FSHandler::doGet()\r\n");
yueee_yt 4:1b6b021ee21d 102 #endif
yueee_yt 0:fdf9c2c5200f 103 }
yueee_yt 0:fdf9c2c5200f 104
yueee_yt 0:fdf9c2c5200f 105 void FSHandler::doPost()
yueee_yt 0:fdf9c2c5200f 106 {
yueee_yt 0:fdf9c2c5200f 107
yueee_yt 0:fdf9c2c5200f 108 }
yueee_yt 0:fdf9c2c5200f 109
yueee_yt 0:fdf9c2c5200f 110 void FSHandler::doHead()
yueee_yt 0:fdf9c2c5200f 111 {
yueee_yt 0:fdf9c2c5200f 112
yueee_yt 0:fdf9c2c5200f 113 }
yueee_yt 0:fdf9c2c5200f 114
yueee_yt 0:fdf9c2c5200f 115 void FSHandler::onReadable() //Data has been read
yueee_yt 0:fdf9c2c5200f 116 {
yueee_yt 0:fdf9c2c5200f 117
yueee_yt 0:fdf9c2c5200f 118 }
yueee_yt 0:fdf9c2c5200f 119
yueee_yt 0:fdf9c2c5200f 120 void FSHandler::onWriteable() //Data has been written & buf is free
yueee_yt 0:fdf9c2c5200f 121 {
yueee_yt 4:1b6b021ee21d 122 #ifdef _DEBUG_FS_HANDLER
embeddedartists 6:7b3320c34654 123 DMBoard::instance().logger()->printf("\r\nFSHandler::onWriteable() event\r\n");
yueee_yt 4:1b6b021ee21d 124 #endif
yueee_yt 4:1b6b021ee21d 125 if(m_err404) {
yueee_yt 4:1b6b021ee21d 126 //Error has been served, now exit
yueee_yt 4:1b6b021ee21d 127 close();
yueee_yt 4:1b6b021ee21d 128 return;
yueee_yt 4:1b6b021ee21d 129 }
yueee_yt 4:1b6b021ee21d 130
yueee_yt 4:1b6b021ee21d 131 static char rBuf[CHUNK_SIZE];
yueee_yt 4:1b6b021ee21d 132 while(true) {
yueee_yt 4:1b6b021ee21d 133 int len = fread(rBuf, 1, CHUNK_SIZE, m_fp);
yueee_yt 4:1b6b021ee21d 134 if(len>0) {
yueee_yt 4:1b6b021ee21d 135 int writtenLen = writeData(rBuf, len);
yueee_yt 4:1b6b021ee21d 136 if(writtenLen < 0) { //Socket error
yueee_yt 4:1b6b021ee21d 137 #ifdef _DEBUG_FS_HANDLER
embeddedartists 6:7b3320c34654 138 DMBoard::instance().logger()->printf("FSHandler: Socket error %d\n", writtenLen);
yueee_yt 4:1b6b021ee21d 139 #endif
yueee_yt 5:b8f6a11c70db 140 /** Not Work
yueee_yt 5:b8f6a11c70db 141 if(writtenLen == TCPSOCKET_MEM) {
yueee_yt 5:b8f6a11c70db 142 fseek(m_fp, -len, SEEK_CUR);
yueee_yt 5:b8f6a11c70db 143 return; //Wait for the queued TCP segments to be transmitted
yueee_yt 5:b8f6a11c70db 144 } else {
yueee_yt 5:b8f6a11c70db 145 //This is a critical error
yueee_yt 5:b8f6a11c70db 146 **/
yueee_yt 5:b8f6a11c70db 147 close();
yueee_yt 5:b8f6a11c70db 148 return;
yueee_yt 5:b8f6a11c70db 149 /**
yueee_yt 5:b8f6a11c70db 150 }
yueee_yt 5:b8f6a11c70db 151 **/
yueee_yt 4:1b6b021ee21d 152 } else if(writtenLen < len) { //Short write, socket's buffer is full
yueee_yt 4:1b6b021ee21d 153 fseek(m_fp, writtenLen - len, SEEK_CUR);
yueee_yt 4:1b6b021ee21d 154 return;
yueee_yt 4:1b6b021ee21d 155 }
yueee_yt 4:1b6b021ee21d 156 } else {
yueee_yt 4:1b6b021ee21d 157 close(); //Data written, we can close the connection
yueee_yt 4:1b6b021ee21d 158 return;
yueee_yt 0:fdf9c2c5200f 159 }
yueee_yt 0:fdf9c2c5200f 160 }
yueee_yt 0:fdf9c2c5200f 161 }
yueee_yt 0:fdf9c2c5200f 162
yueee_yt 0:fdf9c2c5200f 163 void FSHandler::onClose() //Connection is closing
yueee_yt 0:fdf9c2c5200f 164 {
embeddedartists 6:7b3320c34654 165 DMBoard::instance().logger()->printf("FSHandler: onClose() event\r\n");
yueee_yt 5:b8f6a11c70db 166 /**
yueee_yt 5:b8f6a11c70db 167 #ifdef _DEBUG_FS_HANDLER
yueee_yt 5:b8f6a11c70db 168 printf("FSHandler: onClose start \r\n");
yueee_yt 5:b8f6a11c70db 169 #endif
yueee_yt 5:b8f6a11c70db 170 if(m_fp){
yueee_yt 5:b8f6a11c70db 171 #ifdef _DEBUG_FS_HANDLER
yueee_yt 5:b8f6a11c70db 172 printf("FSHandler: fclose start \r\n");
yueee_yt 5:b8f6a11c70db 173 #endif
yueee_yt 5:b8f6a11c70db 174 fclose(m_fp);
yueee_yt 5:b8f6a11c70db 175 #ifdef _DEBUG_FS_HANDLER
yueee_yt 5:b8f6a11c70db 176 printf("FSHandler: fclose end \r\n");
yueee_yt 5:b8f6a11c70db 177 #endif
yueee_yt 0:fdf9c2c5200f 178 }
yueee_yt 5:b8f6a11c70db 179 #ifdef _DEBUG_FS_HANDLER
yueee_yt 5:b8f6a11c70db 180 printf("FSHandler: onClose end \r\n");
yueee_yt 5:b8f6a11c70db 181 #endif
yueee_yt 5:b8f6a11c70db 182 **/
yueee_yt 5:b8f6a11c70db 183 }