A simple web server mainly based on ideas from Jasper Schuurmans Netduino web server
Dependents: RdBlindsServer SpideyWallWeb RdGasUseMonitor
A fast and reliable web server for MBED! http://robdobson.com/2015/08/a-reliable-mbed-webserver/
It has a very neat way to implement REST commands and can serve files from local storage (on LPC1768 for instance) and from SD cards. It also has a caching facility which is particularly useful for serving files from local storage.
The server can be run in the main() thread (and has a sub-2ms response time if this is done) or in a mbed-rtos thread which increases the response time to (a still respectable) 30ms or so.
The latest project that uses this is here - https://developer.mbed.org/users/Bobty/code/SpideyWallWeb/
int main (void) { // Ethernet interface EthernetInterface::init(); // Connect ethernet EthernetInterface::connect(); // Init the web server pc.printf("Starting web server\r\n"); char* baseWebFolder = "/sd/"; // should be /sd/ for SDcard files - not used for local file system RdWebServer webServer; // Add commands to handle the home page and favicon webServer.addCommand("", RdWebServerCmdDef::CMD_LOCALFILE, NULL, "index.htm", true); webServer.addCommand("favicon.ico", RdWebServerCmdDef::CMD_LOCALFILE, NULL, NULL, true); // Add the lightwall control commands webServer.addCommand("name", RdWebServerCmdDef::CMD_CALLBACK, &lightwallGetSystemName); webServer.addCommand("clear", RdWebServerCmdDef::CMD_CALLBACK, &lightwallClear); webServer.addCommand("rawfill", RdWebServerCmdDef::CMD_CALLBACK, &lightwallRawFill); webServer.addCommand("fill", RdWebServerCmdDef::CMD_CALLBACK, &lightwallFill); webServer.addCommand("showleds", RdWebServerCmdDef::CMD_CALLBACK, &lightwallShowLeds); // Start the server webServer.init(WEBPORT, &led4, baseWebFolder); webServer.run(); } // Get system name - No arguments required char* lightwallGetSystemName(int method, char*cmdStr, char* argStr, char* msgBuffer, int msgLen, int contentLen, unsigned char* pPayload, int payloadLen, int splitPayloadPos) { // Perform any required actions here .... // ... // Return the system name return systemName; }
This server was originally based on a Netduino web server from Jasper Schuurmans but has been optimised for speed.
RdWebServer.cpp@28:99036ff32459, 2016-02-08 (annotated)
- Committer:
- Bobty
- Date:
- Mon Feb 08 13:47:29 2016 +0000
- Revision:
- 28:99036ff32459
- Parent:
- 27:0c2d6f598ae5
Restructured to allow support for alternative IP stacks - e.g. CC3000; Also removed dependency on Mutex when SD card not used; And removed dependency on std::vector as it seems unstable
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Bobty | 20:e6c7db867593 | 1 | // RdWebServer - Simple Web Server for MBED |
Bobty | 20:e6c7db867593 | 2 | // Copyright (C) Rob Dobson 2013-2015, MIT License |
Bobty | 20:e6c7db867593 | 3 | // Inspired by Jasper Schuurmans multi-threaded web server for Netduino which now seems to have gone from ... |
Bobty | 20:e6c7db867593 | 4 | // http://www.schuurmans.cc/multi-threaded-web-server-for-netduino-plus |
Bobty | 20:e6c7db867593 | 5 | // More details at http://robdobson.com/2013/10/moving-my-window-shades-control-to-mbed/ |
Bobty | 3:594136d34a32 | 6 | |
Bobty | 28:99036ff32459 | 7 | #include "RdWebServerDefs.h" |
Bobty | 0:b5b4d07f7827 | 8 | #include "RdWebServer.h" |
Bobty | 0:b5b4d07f7827 | 9 | |
Bobty | 18:5de680c4cfcb | 10 | // Limits - note particularly the MAX_FILENAME_LEN |
Bobty | 15:0865fa4b046a | 11 | const int MAX_FILENAME_LEN = (MAX_ARGSTR_LEN + 20); |
Bobty | 1:75bb184de749 | 12 | |
Bobty | 18:5de680c4cfcb | 13 | // Constructor |
Bobty | 28:99036ff32459 | 14 | RdWebServer::RdWebServer(TCPSocketServer& tcpServerSocket, Mutex* pSdCardMutex) |
Bobty | 28:99036ff32459 | 15 | : _serverSocket(tcpServerSocket) |
Bobty | 0:b5b4d07f7827 | 16 | { |
Bobty | 15:0865fa4b046a | 17 | _initOk = false; |
Bobty | 0:b5b4d07f7827 | 18 | _pStatusLed = NULL; |
Bobty | 24:27800de38eab | 19 | _curSplitPayloadPos = -1; |
Bobty | 24:27800de38eab | 20 | _curCmdStr[0] = 0; |
Bobty | 24:27800de38eab | 21 | _curArgStr[0] = 0; |
Bobty | 24:27800de38eab | 22 | _bufferReceivedLen = 0; |
Bobty | 24:27800de38eab | 23 | _curContentLen = -1; |
Bobty | 24:27800de38eab | 24 | _curHttpMethod = METHOD_OTHER; |
Bobty | 24:27800de38eab | 25 | _curWebServerCmdDef = NULL; |
Bobty | 26:3c4c10e989b1 | 26 | _pSdCardMutex = pSdCardMutex; |
Bobty | 28:99036ff32459 | 27 | _numWebServerCmds = 0; |
Bobty | 28:99036ff32459 | 28 | _numWebServerCachedFiles = 0; |
Bobty | 0:b5b4d07f7827 | 29 | } |
Bobty | 0:b5b4d07f7827 | 30 | |
Bobty | 18:5de680c4cfcb | 31 | // Destructor |
Bobty | 0:b5b4d07f7827 | 32 | RdWebServer::~RdWebServer() |
Bobty | 0:b5b4d07f7827 | 33 | { |
Bobty | 2:9d8793c23b46 | 34 | // Clean-up - probably never called as we're on a microcontroller! |
Bobty | 28:99036ff32459 | 35 | for (int i = 0; i < _numWebServerCmds; i++) |
Bobty | 28:99036ff32459 | 36 | delete _pWebServerCmds[i]; |
Bobty | 28:99036ff32459 | 37 | _numWebServerCmds = 0; |
Bobty | 0:b5b4d07f7827 | 38 | } |
Bobty | 0:b5b4d07f7827 | 39 | |
Bobty | 18:5de680c4cfcb | 40 | // Init |
Bobty | 4:6afb3bbf20a4 | 41 | bool RdWebServer::init(int port, DigitalOut* pStatusLed, char* pBaseWebFolder) |
Bobty | 0:b5b4d07f7827 | 42 | { |
Bobty | 15:0865fa4b046a | 43 | // Settings |
Bobty | 0:b5b4d07f7827 | 44 | _port = port; |
Bobty | 0:b5b4d07f7827 | 45 | _pStatusLed = pStatusLed; |
Bobty | 4:6afb3bbf20a4 | 46 | _pBaseWebFolder = pBaseWebFolder; |
Bobty | 0:b5b4d07f7827 | 47 | |
Bobty | 23:0fc3d7b5e596 | 48 | // Non-blocking by default |
Bobty | 23:0fc3d7b5e596 | 49 | _blockingOnAccept = false; |
Bobty | 23:0fc3d7b5e596 | 50 | _blockingOnReceive = false; |
Bobty | 17:080f2bed8b36 | 51 | |
Bobty | 17:080f2bed8b36 | 52 | // This is the same as the default in the socket.cpp file |
Bobty | 17:080f2bed8b36 | 53 | _timeoutOnBlocking = 1500; |
Bobty | 17:080f2bed8b36 | 54 | |
Bobty | 17:080f2bed8b36 | 55 | // If closeConnAfterSend is set false then the socket connection remains open and only |
Bobty | 23:0fc3d7b5e596 | 56 | // one client can access the server until a time-out occurs - this should be ok for most applications |
Bobty | 23:0fc3d7b5e596 | 57 | _closeConnAfterSend = false; |
Bobty | 17:080f2bed8b36 | 58 | _closeConnOnReceiveFail = true; |
Bobty | 17:080f2bed8b36 | 59 | |
Bobty | 15:0865fa4b046a | 60 | if(_serverSocket.bind(port)< 0) |
Bobty | 0:b5b4d07f7827 | 61 | { |
Bobty | 19:f67ac231b570 | 62 | RD_WARN("TCP server bind fail"); |
Bobty | 0:b5b4d07f7827 | 63 | return false; |
Bobty | 0:b5b4d07f7827 | 64 | } |
Bobty | 23:0fc3d7b5e596 | 65 | |
Bobty | 23:0fc3d7b5e596 | 66 | // Only one connection at a time as the server is single-threaded |
Bobty | 15:0865fa4b046a | 67 | if(_serverSocket.listen(1) < 0) |
Bobty | 0:b5b4d07f7827 | 68 | { |
Bobty | 19:f67ac231b570 | 69 | RD_WARN("TCP server listen fail"); |
Bobty | 0:b5b4d07f7827 | 70 | return false; |
Bobty | 0:b5b4d07f7827 | 71 | } |
Bobty | 19:f67ac231b570 | 72 | RD_INFO("TCP server is listening..."); |
Bobty | 15:0865fa4b046a | 73 | _initOk = true; |
Bobty | 6:46285c519af2 | 74 | return true; |
Bobty | 6:46285c519af2 | 75 | } |
Bobty | 6:46285c519af2 | 76 | |
Bobty | 18:5de680c4cfcb | 77 | // Run - never returns so run in a thread |
Bobty | 15:0865fa4b046a | 78 | void RdWebServer::run() |
Bobty | 15:0865fa4b046a | 79 | { |
Bobty | 15:0865fa4b046a | 80 | // Check initialised ok |
Bobty | 15:0865fa4b046a | 81 | if (!_initOk) |
Bobty | 15:0865fa4b046a | 82 | return; |
Bobty | 28:99036ff32459 | 83 | |
Bobty | 15:0865fa4b046a | 84 | // Start accepting connections |
Bobty | 28:99036ff32459 | 85 | RD_INFO("Waiting for TCP connection"); |
Bobty | 15:0865fa4b046a | 86 | while (true) |
Bobty | 15:0865fa4b046a | 87 | { |
Bobty | 28:99036ff32459 | 88 | // Accept connection if available |
Bobty | 15:0865fa4b046a | 89 | TCPSocketConnection clientSocketConn; |
Bobty | 17:080f2bed8b36 | 90 | clientSocketConn.set_blocking(_blockingOnAccept, _timeoutOnBlocking); |
Bobty | 28:99036ff32459 | 91 | _serverSocket.accept(clientSocketConn); |
Bobty | 28:99036ff32459 | 92 | if (!clientSocketConn.is_connected()) |
Bobty | 15:0865fa4b046a | 93 | continue; |
Bobty | 15:0865fa4b046a | 94 | |
Bobty | 15:0865fa4b046a | 95 | // Connection |
Bobty | 19:f67ac231b570 | 96 | RD_INFO("Connection from IP: %s", clientSocketConn.get_address()); |
Bobty | 15:0865fa4b046a | 97 | if (_pStatusLed != NULL) |
Bobty | 15:0865fa4b046a | 98 | *_pStatusLed = true; |
Bobty | 15:0865fa4b046a | 99 | |
Bobty | 15:0865fa4b046a | 100 | // While connected |
Bobty | 15:0865fa4b046a | 101 | bool forcedClosed = false; |
Bobty | 24:27800de38eab | 102 | _curSplitPayloadPos = -1; |
Bobty | 15:0865fa4b046a | 103 | while(clientSocketConn.is_connected() && !forcedClosed) |
Bobty | 15:0865fa4b046a | 104 | { |
Bobty | 15:0865fa4b046a | 105 | // Receive data |
Bobty | 23:0fc3d7b5e596 | 106 | if (_blockingOnReceive != _blockingOnAccept) |
Bobty | 23:0fc3d7b5e596 | 107 | clientSocketConn.set_blocking(_blockingOnReceive, _timeoutOnBlocking); |
Bobty | 15:0865fa4b046a | 108 | int rxLen = clientSocketConn.receive(_buffer, HTTPD_MAX_REQ_LENGTH); |
Bobty | 15:0865fa4b046a | 109 | if (rxLen == -1) |
Bobty | 15:0865fa4b046a | 110 | { |
Bobty | 17:080f2bed8b36 | 111 | if (_closeConnOnReceiveFail) |
Bobty | 15:0865fa4b046a | 112 | { |
Bobty | 15:0865fa4b046a | 113 | int closeRet = clientSocketConn.close(); |
Bobty | 25:ffa1dddd3da4 | 114 | RD_DBG("Rx Timeout - conn close() ret %d (is_connected %d)", closeRet, clientSocketConn.is_connected()); |
Bobty | 15:0865fa4b046a | 115 | forcedClosed = true; |
Bobty | 15:0865fa4b046a | 116 | } |
Bobty | 25:ffa1dddd3da4 | 117 | else |
Bobty | 25:ffa1dddd3da4 | 118 | { |
Bobty | 25:ffa1dddd3da4 | 119 | RD_DBG("Rx Timeout - not closing - is_connected %d", clientSocketConn.is_connected()); |
Bobty | 25:ffa1dddd3da4 | 120 | } |
Bobty | 15:0865fa4b046a | 121 | continue; |
Bobty | 15:0865fa4b046a | 122 | } |
Bobty | 15:0865fa4b046a | 123 | if (rxLen == 0) |
Bobty | 15:0865fa4b046a | 124 | { |
Bobty | 19:f67ac231b570 | 125 | RD_DBG("clientSocketConn.receive() returned %d - ignoring - is connected %d", rxLen, clientSocketConn.is_connected()); |
Bobty | 15:0865fa4b046a | 126 | continue; |
Bobty | 15:0865fa4b046a | 127 | } |
Bobty | 18:5de680c4cfcb | 128 | |
Bobty | 18:5de680c4cfcb | 129 | // Handle received message |
Bobty | 15:0865fa4b046a | 130 | _buffer[rxLen] = '\0'; |
Bobty | 24:27800de38eab | 131 | _bufferReceivedLen = rxLen; |
Bobty | 24:27800de38eab | 132 | handleReceivedHttp(clientSocketConn); |
Bobty | 15:0865fa4b046a | 133 | |
Bobty | 17:080f2bed8b36 | 134 | // Close connection if required |
Bobty | 17:080f2bed8b36 | 135 | if (_closeConnAfterSend) |
Bobty | 15:0865fa4b046a | 136 | { |
Bobty | 15:0865fa4b046a | 137 | int closeRet = clientSocketConn.close(); |
Bobty | 19:f67ac231b570 | 138 | RD_DBG("After send connection close() ret %d is connected %d", closeRet, clientSocketConn.is_connected()); |
Bobty | 16:0248bbfdb6c1 | 139 | forcedClosed = true; |
Bobty | 15:0865fa4b046a | 140 | } |
Bobty | 15:0865fa4b046a | 141 | } |
Bobty | 28:99036ff32459 | 142 | |
Bobty | 28:99036ff32459 | 143 | // Waiting again ... |
Bobty | 28:99036ff32459 | 144 | RD_INFO("Waiting for TCP connection"); |
Bobty | 15:0865fa4b046a | 145 | } |
Bobty | 15:0865fa4b046a | 146 | } |
Bobty | 18:5de680c4cfcb | 147 | |
Bobty | 18:5de680c4cfcb | 148 | // Handle a request |
Bobty | 15:0865fa4b046a | 149 | bool RdWebServer::handleReceivedHttp(TCPSocketConnection &clientSocketConn) |
Bobty | 6:46285c519af2 | 150 | { |
Bobty | 17:080f2bed8b36 | 151 | bool handledOk = false; |
Bobty | 24:27800de38eab | 152 | |
Bobty | 24:27800de38eab | 153 | // Check for split payload |
Bobty | 24:27800de38eab | 154 | if (_curSplitPayloadPos != -1) |
Bobty | 24:27800de38eab | 155 | { |
Bobty | 24:27800de38eab | 156 | // Handle remaining parts of content |
Bobty | 24:27800de38eab | 157 | char* respStr = (_curWebServerCmdDef->_callback)(_curHttpMethod, _curCmdStr, _curArgStr, _buffer, _bufferReceivedLen, |
Bobty | 24:27800de38eab | 158 | _curContentLen, (unsigned char*)_buffer, _bufferReceivedLen, _curSplitPayloadPos); |
Bobty | 24:27800de38eab | 159 | RD_DBG("Received part of message - content %d - rx %d - splitAfter %d", _curContentLen, _bufferReceivedLen, _curSplitPayloadPos); |
Bobty | 24:27800de38eab | 160 | _curSplitPayloadPos += _bufferReceivedLen; |
Bobty | 24:27800de38eab | 161 | // Check if all received |
Bobty | 24:27800de38eab | 162 | if (_curSplitPayloadPos >= _curContentLen) |
Bobty | 24:27800de38eab | 163 | { |
Bobty | 24:27800de38eab | 164 | _curSplitPayloadPos = -1; |
Bobty | 24:27800de38eab | 165 | clientSocketConn.send_all(respStr, strlen(respStr)); |
Bobty | 24:27800de38eab | 166 | RD_DBG("That was the end of message - content %d - rx %d", _curContentLen, _bufferReceivedLen); |
Bobty | 24:27800de38eab | 167 | } |
Bobty | 24:27800de38eab | 168 | return true; |
Bobty | 24:27800de38eab | 169 | } |
Bobty | 24:27800de38eab | 170 | |
Bobty | 24:27800de38eab | 171 | // Get payload information |
Bobty | 24:27800de38eab | 172 | int payloadLen = -1; |
Bobty | 24:27800de38eab | 173 | unsigned char* pPayload = getPayloadDataFromMsg(_buffer, _bufferReceivedLen, payloadLen); |
Bobty | 24:27800de38eab | 174 | |
Bobty | 24:27800de38eab | 175 | // Debug |
Bobty | 24:27800de38eab | 176 | int displayLen = _bufferReceivedLen; |
Bobty | 24:27800de38eab | 177 | if (payloadLen > 0) |
Bobty | 24:27800de38eab | 178 | displayLen = _bufferReceivedLen-payloadLen; |
Bobty | 24:27800de38eab | 179 | RD_DBG("\r\nNEW REQUEST RxLen %d ContentLen %d PayloadLen %d\n\r\n\r%.*s", _bufferReceivedLen, _curContentLen, payloadLen, displayLen, _buffer); |
Bobty | 24:27800de38eab | 180 | |
Bobty | 24:27800de38eab | 181 | // Get HTTP method |
Bobty | 24:27800de38eab | 182 | _curHttpMethod = METHOD_OTHER; |
Bobty | 6:46285c519af2 | 183 | if (strncmp(_buffer, "GET ", 4) == 0) |
Bobty | 24:27800de38eab | 184 | _curHttpMethod = METHOD_GET; |
Bobty | 23:0fc3d7b5e596 | 185 | else if (strncmp(_buffer, "POST", 4) == 0) |
Bobty | 24:27800de38eab | 186 | _curHttpMethod = METHOD_POST; |
Bobty | 23:0fc3d7b5e596 | 187 | else if (strncmp(_buffer, "OPTIONS", 7) == 0) |
Bobty | 24:27800de38eab | 188 | _curHttpMethod = METHOD_OPTIONS; |
Bobty | 7:fe7c33f7fbb8 | 189 | |
Bobty | 24:27800de38eab | 190 | // See if there is a valid HTTP command |
Bobty | 24:27800de38eab | 191 | _curContentLen = -1; |
Bobty | 24:27800de38eab | 192 | if (extractCmdArgs(_buffer+3, _curCmdStr, MAX_CMDSTR_LEN, _curArgStr, MAX_ARGSTR_LEN, _curContentLen)) |
Bobty | 6:46285c519af2 | 193 | { |
Bobty | 24:27800de38eab | 194 | RD_DBG("CmdStr %s", _curCmdStr); |
Bobty | 24:27800de38eab | 195 | RD_DBG("ArgStr %s", _curArgStr); |
Bobty | 24:27800de38eab | 196 | |
Bobty | 7:fe7c33f7fbb8 | 197 | bool cmdFound = false; |
Bobty | 28:99036ff32459 | 198 | for (int wsCmdIdx = 0; wsCmdIdx < _numWebServerCmds; wsCmdIdx++) |
Bobty | 6:46285c519af2 | 199 | { |
Bobty | 28:99036ff32459 | 200 | RdWebServerCmdDef* pCmd = _pWebServerCmds[wsCmdIdx]; |
Bobty | 28:99036ff32459 | 201 | if (strcasecmp(pCmd->_pCmdStr, _curCmdStr) == 0) |
Bobty | 24:27800de38eab | 202 | { |
Bobty | 28:99036ff32459 | 203 | RD_DBG("FoundCmd <%s> Type %d", _curCmdStr, pCmd->_cmdType); |
Bobty | 7:fe7c33f7fbb8 | 204 | cmdFound = true; |
Bobty | 28:99036ff32459 | 205 | if (pCmd->_cmdType == RdWebServerCmdDef::CMD_CALLBACK) |
Bobty | 7:fe7c33f7fbb8 | 206 | { |
Bobty | 28:99036ff32459 | 207 | char* respStr = (pCmd->_callback)(_curHttpMethod, _curCmdStr, _curArgStr, _buffer, _bufferReceivedLen, |
Bobty | 24:27800de38eab | 208 | _curContentLen, pPayload, payloadLen, 0); |
Bobty | 24:27800de38eab | 209 | // Handle split-payload situation |
Bobty | 24:27800de38eab | 210 | if (_curContentLen > 0 && payloadLen < _curContentLen) |
Bobty | 24:27800de38eab | 211 | { |
Bobty | 24:27800de38eab | 212 | _curSplitPayloadPos = payloadLen; |
Bobty | 28:99036ff32459 | 213 | _curWebServerCmdDef = pCmd; |
Bobty | 24:27800de38eab | 214 | } |
Bobty | 24:27800de38eab | 215 | else |
Bobty | 24:27800de38eab | 216 | { |
Bobty | 24:27800de38eab | 217 | clientSocketConn.send_all(respStr, strlen(respStr)); |
Bobty | 24:27800de38eab | 218 | } |
Bobty | 24:27800de38eab | 219 | handledOk = true; |
Bobty | 6:46285c519af2 | 220 | } |
Bobty | 28:99036ff32459 | 221 | else if ( (pCmd->_cmdType == RdWebServerCmdDef::CMD_LOCALFILE) || |
Bobty | 28:99036ff32459 | 222 | (pCmd->_cmdType == RdWebServerCmdDef::CMD_SDORUSBFILE) ) |
Bobty | 7:fe7c33f7fbb8 | 223 | { |
Bobty | 17:080f2bed8b36 | 224 | char combinedFileName[MAX_FILENAME_LEN]; |
Bobty | 28:99036ff32459 | 225 | strcpy(combinedFileName, pCmd->_substFileName); |
Bobty | 17:080f2bed8b36 | 226 | if (strlen(combinedFileName) == 0) |
Bobty | 24:27800de38eab | 227 | strcpy(combinedFileName, _curCmdStr); |
Bobty | 17:080f2bed8b36 | 228 | else if (combinedFileName[strlen(combinedFileName)-1] == '*') |
Bobty | 24:27800de38eab | 229 | strcpy(combinedFileName+strlen(combinedFileName)-1, _curArgStr); |
Bobty | 28:99036ff32459 | 230 | if (pCmd->_cmdType == RdWebServerCmdDef::CMD_LOCALFILE) |
Bobty | 28:99036ff32459 | 231 | handledOk = handleLocalFileRequest(combinedFileName, _curArgStr, clientSocketConn, pCmd->_bCacheIfPossible); |
Bobty | 7:fe7c33f7fbb8 | 232 | else |
Bobty | 24:27800de38eab | 233 | handledOk = handleSDFileRequest(combinedFileName, _curArgStr, clientSocketConn); |
Bobty | 17:080f2bed8b36 | 234 | |
Bobty | 7:fe7c33f7fbb8 | 235 | } |
Bobty | 7:fe7c33f7fbb8 | 236 | break; |
Bobty | 6:46285c519af2 | 237 | } |
Bobty | 6:46285c519af2 | 238 | } |
Bobty | 7:fe7c33f7fbb8 | 239 | // If command not found see if it is a local file |
Bobty | 7:fe7c33f7fbb8 | 240 | if (!cmdFound) |
Bobty | 17:080f2bed8b36 | 241 | { |
Bobty | 17:080f2bed8b36 | 242 | char combinedFileName[MAX_FILENAME_LEN]; |
Bobty | 24:27800de38eab | 243 | strcpy(combinedFileName, _curCmdStr); |
Bobty | 25:ffa1dddd3da4 | 244 | if (strlen(_curArgStr) > 0) |
Bobty | 25:ffa1dddd3da4 | 245 | { |
Bobty | 25:ffa1dddd3da4 | 246 | strcat(combinedFileName, "/"); |
Bobty | 25:ffa1dddd3da4 | 247 | strcat(combinedFileName, _curArgStr); |
Bobty | 25:ffa1dddd3da4 | 248 | } |
Bobty | 24:27800de38eab | 249 | handledOk = handleSDFileRequest(combinedFileName, _curArgStr, clientSocketConn); |
Bobty | 17:080f2bed8b36 | 250 | } |
Bobty | 6:46285c519af2 | 251 | } |
Bobty | 24:27800de38eab | 252 | else |
Bobty | 24:27800de38eab | 253 | { |
Bobty | 24:27800de38eab | 254 | RD_DBG("Cannot find command or args\r\n"); |
Bobty | 24:27800de38eab | 255 | } |
Bobty | 17:080f2bed8b36 | 256 | return handledOk; |
Bobty | 6:46285c519af2 | 257 | } |
Bobty | 6:46285c519af2 | 258 | |
Bobty | 18:5de680c4cfcb | 259 | // Add a command to the server |
Bobty | 6:46285c519af2 | 260 | void RdWebServer::addCommand(char* pCmdStr, int cmdType, CmdCallbackType callback, char* substFileName, bool cacheIfPossible) |
Bobty | 6:46285c519af2 | 261 | { |
Bobty | 28:99036ff32459 | 262 | // Check for overflow |
Bobty | 28:99036ff32459 | 263 | if (_numWebServerCmds >= MAX_WEB_SERVER_CMDS) |
Bobty | 28:99036ff32459 | 264 | return; |
Bobty | 28:99036ff32459 | 265 | |
Bobty | 28:99036ff32459 | 266 | // Create new command definition and add |
Bobty | 28:99036ff32459 | 267 | RdWebServerCmdDef* pNewCmdDef = new RdWebServerCmdDef(pCmdStr, cmdType, callback, substFileName, cacheIfPossible); |
Bobty | 28:99036ff32459 | 268 | _pWebServerCmds[_numWebServerCmds] = pNewCmdDef; |
Bobty | 28:99036ff32459 | 269 | _numWebServerCmds++; |
Bobty | 6:46285c519af2 | 270 | } |
Bobty | 6:46285c519af2 | 271 | |
Bobty | 18:5de680c4cfcb | 272 | // Form a header to respond |
Bobty | 17:080f2bed8b36 | 273 | void RdWebServer::formHTTPHeader(const char* rsltCode, const char* contentType, int contentLen) |
Bobty | 17:080f2bed8b36 | 274 | { |
Bobty | 23:0fc3d7b5e596 | 275 | const char* closeConnStr = "\r\nConnection: keep-alive"; |
Bobty | 17:080f2bed8b36 | 276 | if(contentLen != -1) |
Bobty | 22:598a21373539 | 277 | sprintf(_httpHeader, "HTTP/1.1 %s\r\nAccess-Control-Allow-Origin: *\r\nContent-Type: %s\r\nContent-Length: %d%s\r\n\r\n", rsltCode, contentType, contentLen, _closeConnAfterSend ? closeConnStr : ""); |
Bobty | 17:080f2bed8b36 | 278 | else |
Bobty | 22:598a21373539 | 279 | sprintf(_httpHeader, "HTTP/1.1 %s\r\nAccess-Control-Allow-Origin: *\r\nContent-Type: %s%s\r\n\r\n", rsltCode, contentType, _closeConnAfterSend ? closeConnStr : ""); |
Bobty | 17:080f2bed8b36 | 280 | } |
Bobty | 18:5de680c4cfcb | 281 | |
Bobty | 18:5de680c4cfcb | 282 | // Use file extension to determine MIME type |
Bobty | 17:080f2bed8b36 | 283 | char* getMimeTypeStr(char* filename) |
Bobty | 6:46285c519af2 | 284 | { |
Bobty | 17:080f2bed8b36 | 285 | char* mimeType = "text/plain"; |
Bobty | 17:080f2bed8b36 | 286 | char *pDot = strrchr(filename, '.'); |
Bobty | 17:080f2bed8b36 | 287 | if (pDot && (!strcmp(pDot, ".html") || !strcmp(pDot, ".htm"))) |
Bobty | 17:080f2bed8b36 | 288 | mimeType = "text/html"; |
Bobty | 17:080f2bed8b36 | 289 | else if (pDot && !strcmp(pDot, ".css")) |
Bobty | 17:080f2bed8b36 | 290 | mimeType = "text/css"; |
Bobty | 17:080f2bed8b36 | 291 | else if (pDot && !strcmp(pDot, ".js")) |
Bobty | 17:080f2bed8b36 | 292 | mimeType = "application/javascript"; |
Bobty | 17:080f2bed8b36 | 293 | else if (pDot && !strcmp(pDot, ".png")) |
Bobty | 17:080f2bed8b36 | 294 | mimeType = "image/png"; |
Bobty | 17:080f2bed8b36 | 295 | else if (pDot && (!strcmp(pDot, ".jpeg") || !strcmp(pDot, ".jpeg"))) |
Bobty | 17:080f2bed8b36 | 296 | mimeType = "image/jpeg"; |
Bobty | 17:080f2bed8b36 | 297 | return mimeType; |
Bobty | 17:080f2bed8b36 | 298 | } |
Bobty | 18:5de680c4cfcb | 299 | |
Bobty | 18:5de680c4cfcb | 300 | // Handle request for files/listing from SDCard |
Bobty | 17:080f2bed8b36 | 301 | bool RdWebServer::handleSDFileRequest(char* inFileName, char* argStr, TCPSocketConnection &clientSocketConn) |
Bobty | 17:080f2bed8b36 | 302 | { |
Bobty | 28:99036ff32459 | 303 | #ifdef SUPPORT_SD_FILESYSTEM |
Bobty | 28:99036ff32459 | 304 | |
Bobty | 17:080f2bed8b36 | 305 | bool handledOk = false; |
Bobty | 6:46285c519af2 | 306 | const int HTTPD_MAX_FNAME_LENGTH = 127; |
Bobty | 6:46285c519af2 | 307 | char filename[HTTPD_MAX_FNAME_LENGTH+1]; |
Bobty | 6:46285c519af2 | 308 | |
Bobty | 19:f67ac231b570 | 309 | RD_INFO("Requesting file %s", inFileName); |
Bobty | 6:46285c519af2 | 310 | |
Bobty | 12:c14ffd4ec125 | 311 | #ifdef SUPPORT_FOLDER_VIEW |
Bobty | 10:b4b9d4d5e5be | 312 | if ((strlen(inFileName) > 0) && (inFileName[strlen(inFileName)-1] == '/')) |
Bobty | 6:46285c519af2 | 313 | { |
Bobty | 19:f67ac231b570 | 314 | RD_INFO("Request directory %s%s", _pBaseWebFolder, inFileName); |
Bobty | 6:46285c519af2 | 315 | sprintf(filename, "%s%s", _pBaseWebFolder, inFileName); |
Bobty | 26:3c4c10e989b1 | 316 | |
Bobty | 26:3c4c10e989b1 | 317 | // Obtain lock on SD card (if reqd) |
Bobty | 26:3c4c10e989b1 | 318 | if (_pSdCardMutex) |
Bobty | 26:3c4c10e989b1 | 319 | _pSdCardMutex->lock(); |
Bobty | 26:3c4c10e989b1 | 320 | |
Bobty | 6:46285c519af2 | 321 | DIR *d = opendir(filename); |
Bobty | 11:cec51b430b20 | 322 | if (d != NULL) |
Bobty | 11:cec51b430b20 | 323 | { |
Bobty | 17:080f2bed8b36 | 324 | formHTTPHeader("200 OK", "text/html", -1); |
Bobty | 23:0fc3d7b5e596 | 325 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 17:080f2bed8b36 | 326 | sprintf(_httpHeader,"<html><head><title>Directory Listing</title></head><body><h1>%s</h1><ul>", inFileName); |
Bobty | 23:0fc3d7b5e596 | 327 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 6:46285c519af2 | 328 | struct dirent *p; |
Bobty | 11:cec51b430b20 | 329 | while((p = readdir(d)) != NULL) |
Bobty | 11:cec51b430b20 | 330 | { |
Bobty | 19:f67ac231b570 | 331 | RD_INFO("%s", p->d_name); |
Bobty | 17:080f2bed8b36 | 332 | sprintf(_httpHeader,"<li>%s</li>", p->d_name); |
Bobty | 23:0fc3d7b5e596 | 333 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 6:46285c519af2 | 334 | } |
Bobty | 6:46285c519af2 | 335 | } |
Bobty | 6:46285c519af2 | 336 | closedir(d); |
Bobty | 26:3c4c10e989b1 | 337 | |
Bobty | 26:3c4c10e989b1 | 338 | // Release lock on SD card (if reqd) |
Bobty | 26:3c4c10e989b1 | 339 | if (_pSdCardMutex) |
Bobty | 26:3c4c10e989b1 | 340 | _pSdCardMutex->unlock(); |
Bobty | 26:3c4c10e989b1 | 341 | |
Bobty | 11:cec51b430b20 | 342 | RD_DBG("Directory closed\n"); |
Bobty | 17:080f2bed8b36 | 343 | sprintf(_httpHeader,"</ul></body></html>"); |
Bobty | 23:0fc3d7b5e596 | 344 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 17:080f2bed8b36 | 345 | handledOk = true; |
Bobty | 6:46285c519af2 | 346 | } |
Bobty | 6:46285c519af2 | 347 | else |
Bobty | 12:c14ffd4ec125 | 348 | #endif |
Bobty | 6:46285c519af2 | 349 | { |
Bobty | 6:46285c519af2 | 350 | sprintf(filename, "%s%s", _pBaseWebFolder, inFileName); |
Bobty | 19:f67ac231b570 | 351 | RD_INFO("Filename %s", filename); |
Bobty | 6:46285c519af2 | 352 | |
Bobty | 26:3c4c10e989b1 | 353 | // Obtain lock on SD card (if reqd) |
Bobty | 26:3c4c10e989b1 | 354 | if (_pSdCardMutex) |
Bobty | 26:3c4c10e989b1 | 355 | _pSdCardMutex->lock(); |
Bobty | 26:3c4c10e989b1 | 356 | |
Bobty | 6:46285c519af2 | 357 | FILE* fp = fopen(filename, "r"); |
Bobty | 6:46285c519af2 | 358 | if (fp == NULL) |
Bobty | 6:46285c519af2 | 359 | { |
Bobty | 19:f67ac231b570 | 360 | RD_WARN("Filename %s not found", filename); |
Bobty | 17:080f2bed8b36 | 361 | formHTTPHeader("404 Not Found", "text/plain", 0); |
Bobty | 23:0fc3d7b5e596 | 362 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 17:080f2bed8b36 | 363 | handledOk = true; |
Bobty | 6:46285c519af2 | 364 | } |
Bobty | 6:46285c519af2 | 365 | else |
Bobty | 6:46285c519af2 | 366 | { |
Bobty | 19:f67ac231b570 | 367 | RD_INFO("Sending file %s", filename); |
Bobty | 17:080f2bed8b36 | 368 | // Find file length |
Bobty | 14:4b83670854f0 | 369 | fseek(fp, 0L, SEEK_END); |
Bobty | 14:4b83670854f0 | 370 | int sz = ftell(fp); |
Bobty | 14:4b83670854f0 | 371 | fseek(fp, 0L, SEEK_SET); |
Bobty | 17:080f2bed8b36 | 372 | // Get mime type |
Bobty | 17:080f2bed8b36 | 373 | char* mimeType = getMimeTypeStr(filename); |
Bobty | 18:5de680c4cfcb | 374 | RD_DBG("MIME TYPE %s", mimeType); |
Bobty | 17:080f2bed8b36 | 375 | // Form header |
Bobty | 17:080f2bed8b36 | 376 | formHTTPHeader("200 OK", mimeType, sz); |
Bobty | 23:0fc3d7b5e596 | 377 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 14:4b83670854f0 | 378 | // Read file in blocks and send |
Bobty | 6:46285c519af2 | 379 | int rdCnt = 0; |
Bobty | 6:46285c519af2 | 380 | char fileBuf[1024]; |
Bobty | 6:46285c519af2 | 381 | while ((rdCnt = fread(fileBuf, sizeof( char ), 1024, fp)) == 1024) |
Bobty | 6:46285c519af2 | 382 | { |
Bobty | 23:0fc3d7b5e596 | 383 | clientSocketConn.send_all(fileBuf, rdCnt); |
Bobty | 6:46285c519af2 | 384 | } |
Bobty | 23:0fc3d7b5e596 | 385 | clientSocketConn.send_all(fileBuf, rdCnt); |
Bobty | 6:46285c519af2 | 386 | fclose(fp); |
Bobty | 17:080f2bed8b36 | 387 | handledOk = true; |
Bobty | 6:46285c519af2 | 388 | } |
Bobty | 26:3c4c10e989b1 | 389 | |
Bobty | 26:3c4c10e989b1 | 390 | // Obtain lock on SD card (if reqd) |
Bobty | 26:3c4c10e989b1 | 391 | if (_pSdCardMutex) |
Bobty | 26:3c4c10e989b1 | 392 | _pSdCardMutex->unlock(); |
Bobty | 26:3c4c10e989b1 | 393 | |
Bobty | 6:46285c519af2 | 394 | } |
Bobty | 17:080f2bed8b36 | 395 | return handledOk; |
Bobty | 28:99036ff32459 | 396 | |
Bobty | 28:99036ff32459 | 397 | #else // support SUPPORT_SD_FILESYSTEM |
Bobty | 28:99036ff32459 | 398 | |
Bobty | 28:99036ff32459 | 399 | return false; |
Bobty | 28:99036ff32459 | 400 | |
Bobty | 28:99036ff32459 | 401 | #endif |
Bobty | 6:46285c519af2 | 402 | } |
Bobty | 6:46285c519af2 | 403 | |
Bobty | 18:5de680c4cfcb | 404 | // Send a file from cache - used for local files only |
Bobty | 15:0865fa4b046a | 405 | #ifdef SUPPORT_LOCAL_FILE_CACHE |
Bobty | 17:080f2bed8b36 | 406 | void RdWebServer::sendFromCache(RdFileCacheEntry* pCacheEntry, TCPSocketConnection &clientSocketConn) |
Bobty | 6:46285c519af2 | 407 | { |
Bobty | 19:f67ac231b570 | 408 | RD_INFO("Sending file %s from cache %d bytes", pCacheEntry->_fileName, pCacheEntry->_nFileLen); |
Bobty | 17:080f2bed8b36 | 409 | // Get mime type |
Bobty | 17:080f2bed8b36 | 410 | char* mimeType = getMimeTypeStr(pCacheEntry->_fileName); |
Bobty | 17:080f2bed8b36 | 411 | RD_INFO("MIME TYPE %s", mimeType); |
Bobty | 17:080f2bed8b36 | 412 | // Form header |
Bobty | 17:080f2bed8b36 | 413 | formHTTPHeader("200 OK", mimeType, pCacheEntry->_nFileLen); |
Bobty | 23:0fc3d7b5e596 | 414 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 6:46285c519af2 | 415 | char* pMem = pCacheEntry->_pFileContent; |
Bobty | 6:46285c519af2 | 416 | int nLenLeft = pCacheEntry->_nFileLen; |
Bobty | 6:46285c519af2 | 417 | int blkSize = 2048; |
Bobty | 6:46285c519af2 | 418 | while(nLenLeft > 0) |
Bobty | 6:46285c519af2 | 419 | { |
Bobty | 6:46285c519af2 | 420 | if (blkSize > nLenLeft) |
Bobty | 6:46285c519af2 | 421 | blkSize = nLenLeft; |
Bobty | 23:0fc3d7b5e596 | 422 | clientSocketConn.send_all(pMem, blkSize); |
Bobty | 6:46285c519af2 | 423 | pMem += blkSize; |
Bobty | 6:46285c519af2 | 424 | nLenLeft -= blkSize; |
Bobty | 6:46285c519af2 | 425 | } |
Bobty | 6:46285c519af2 | 426 | } |
Bobty | 15:0865fa4b046a | 427 | #endif |
Bobty | 6:46285c519af2 | 428 | |
Bobty | 18:5de680c4cfcb | 429 | // Handle a request for a local file |
Bobty | 17:080f2bed8b36 | 430 | bool RdWebServer::handleLocalFileRequest(char* inFileName, char* argStr, TCPSocketConnection &clientSocketConn, bool bCacheIfPossible) |
Bobty | 6:46285c519af2 | 431 | { |
Bobty | 12:c14ffd4ec125 | 432 | |
Bobty | 12:c14ffd4ec125 | 433 | #ifdef SUPPORT_LOCAL_FILESYSTEM |
Bobty | 12:c14ffd4ec125 | 434 | |
Bobty | 6:46285c519af2 | 435 | const int HTTPD_MAX_FNAME_LENGTH = 127; |
Bobty | 6:46285c519af2 | 436 | char localFilename[HTTPD_MAX_FNAME_LENGTH+1]; |
Bobty | 6:46285c519af2 | 437 | char reqFileNameStr[HTTPD_MAX_FNAME_LENGTH+1]; |
Bobty | 6:46285c519af2 | 438 | |
Bobty | 19:f67ac231b570 | 439 | RD_INFO("Requesting local file %s", inFileName); |
Bobty | 6:46285c519af2 | 440 | sprintf(reqFileNameStr, "/%s", inFileName); |
Bobty | 6:46285c519af2 | 441 | sprintf(localFilename, "/local/%s", inFileName); |
Bobty | 6:46285c519af2 | 442 | |
Bobty | 6:46285c519af2 | 443 | if (bCacheIfPossible) |
Bobty | 6:46285c519af2 | 444 | { |
Bobty | 6:46285c519af2 | 445 | // Check if file already cached |
Bobty | 6:46285c519af2 | 446 | bool bTryToCache = true; |
Bobty | 28:99036ff32459 | 447 | for (int wsCacheIdx = 0; wsCacheIdx < _numWebServerCachedFiles; wsCacheIdx++) |
Bobty | 6:46285c519af2 | 448 | { |
Bobty | 28:99036ff32459 | 449 | RdFileCacheEntry* pCachedFile = _pWebServerCachedFiles[wsCacheIdx]; |
Bobty | 28:99036ff32459 | 450 | if (strcmp(inFileName, pCachedFile->_fileName) == 0) |
Bobty | 6:46285c519af2 | 451 | { |
Bobty | 28:99036ff32459 | 452 | if (pCachedFile->_bCacheValid) |
Bobty | 6:46285c519af2 | 453 | { |
Bobty | 28:99036ff32459 | 454 | sendFromCache(pCachedFile, clientSocketConn); |
Bobty | 17:080f2bed8b36 | 455 | return true; |
Bobty | 6:46285c519af2 | 456 | } |
Bobty | 6:46285c519af2 | 457 | bTryToCache = false; // don't try to cache as cacheing must have already failed |
Bobty | 6:46285c519af2 | 458 | } |
Bobty | 6:46285c519af2 | 459 | } |
Bobty | 6:46285c519af2 | 460 | |
Bobty | 28:99036ff32459 | 461 | // Check for cache full |
Bobty | 28:99036ff32459 | 462 | if (_numWebServerCachedFiles >= MAX_WEB_SERVER_CACHED_FILES) |
Bobty | 28:99036ff32459 | 463 | bTryToCache = false; |
Bobty | 28:99036ff32459 | 464 | |
Bobty | 6:46285c519af2 | 465 | // See if we can cache the file |
Bobty | 6:46285c519af2 | 466 | if (bTryToCache) |
Bobty | 6:46285c519af2 | 467 | { |
Bobty | 6:46285c519af2 | 468 | RdFileCacheEntry* pCacheEntry = new RdFileCacheEntry(inFileName); |
Bobty | 6:46285c519af2 | 469 | if (pCacheEntry) |
Bobty | 6:46285c519af2 | 470 | { |
Bobty | 6:46285c519af2 | 471 | bool bCacheSuccess = pCacheEntry->readLocalFileIntoCache(localFilename); |
Bobty | 28:99036ff32459 | 472 | |
Bobty | 6:46285c519af2 | 473 | // Store the cache entry even if reading failed (mem alloc or file not found, etc) so we don't try to cache again |
Bobty | 28:99036ff32459 | 474 | _pWebServerCachedFiles[_numWebServerCachedFiles] = pCacheEntry; |
Bobty | 28:99036ff32459 | 475 | _numWebServerCachedFiles++; |
Bobty | 6:46285c519af2 | 476 | if (bCacheSuccess) |
Bobty | 6:46285c519af2 | 477 | { |
Bobty | 21:2dfb56648b93 | 478 | sendFromCache(pCacheEntry, clientSocketConn); |
Bobty | 17:080f2bed8b36 | 479 | return true; |
Bobty | 6:46285c519af2 | 480 | } |
Bobty | 6:46285c519af2 | 481 | } |
Bobty | 6:46285c519af2 | 482 | } |
Bobty | 6:46285c519af2 | 483 | } |
Bobty | 6:46285c519af2 | 484 | |
Bobty | 6:46285c519af2 | 485 | LocalFileSystem local("local"); |
Bobty | 6:46285c519af2 | 486 | |
Bobty | 6:46285c519af2 | 487 | FILE* fp = fopen(localFilename, "r"); |
Bobty | 6:46285c519af2 | 488 | if (fp == NULL) |
Bobty | 6:46285c519af2 | 489 | { |
Bobty | 19:f67ac231b570 | 490 | RD_WARN("Local file %s not found", localFilename); |
Bobty | 17:080f2bed8b36 | 491 | formHTTPHeader("404 Not Found", "text/plain", 0); |
Bobty | 23:0fc3d7b5e596 | 492 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 17:080f2bed8b36 | 493 | return true; |
Bobty | 6:46285c519af2 | 494 | } |
Bobty | 6:46285c519af2 | 495 | else |
Bobty | 6:46285c519af2 | 496 | { |
Bobty | 19:f67ac231b570 | 497 | RD_INFO("Sending file %s from disk", localFilename); |
Bobty | 17:080f2bed8b36 | 498 | // Find file length |
Bobty | 17:080f2bed8b36 | 499 | fseek(fp, 0L, SEEK_END); |
Bobty | 17:080f2bed8b36 | 500 | int sz = ftell(fp); |
Bobty | 17:080f2bed8b36 | 501 | fseek(fp, 0L, SEEK_SET); |
Bobty | 17:080f2bed8b36 | 502 | // Get mime type |
Bobty | 17:080f2bed8b36 | 503 | char* mimeType = getMimeTypeStr(localFilename); |
Bobty | 18:5de680c4cfcb | 504 | RD_DBG("MIME TYPE %s", mimeType); |
Bobty | 17:080f2bed8b36 | 505 | // Form header |
Bobty | 17:080f2bed8b36 | 506 | formHTTPHeader("200 OK", mimeType, sz); |
Bobty | 23:0fc3d7b5e596 | 507 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 6:46285c519af2 | 508 | int rdCnt = 0; |
Bobty | 17:080f2bed8b36 | 509 | while ((rdCnt = fread(_httpHeader, sizeof( char ), sizeof(_httpHeader), fp)) == sizeof(_httpHeader)) |
Bobty | 6:46285c519af2 | 510 | { |
Bobty | 23:0fc3d7b5e596 | 511 | clientSocketConn.send_all(_httpHeader, rdCnt); |
Bobty | 6:46285c519af2 | 512 | } |
Bobty | 17:080f2bed8b36 | 513 | if (rdCnt != 0) |
Bobty | 23:0fc3d7b5e596 | 514 | clientSocketConn.send_all(_httpHeader, rdCnt); |
Bobty | 6:46285c519af2 | 515 | fclose(fp); |
Bobty | 17:080f2bed8b36 | 516 | return true; |
Bobty | 6:46285c519af2 | 517 | } |
Bobty | 12:c14ffd4ec125 | 518 | |
Bobty | 12:c14ffd4ec125 | 519 | #else |
Bobty | 12:c14ffd4ec125 | 520 | |
Bobty | 19:f67ac231b570 | 521 | RD_WARN("Local file system not supported"); |
Bobty | 17:080f2bed8b36 | 522 | formHTTPHeader("404 Not Found", "text/plain", 0); |
Bobty | 23:0fc3d7b5e596 | 523 | clientSocketConn.send_all(_httpHeader,strlen(_httpHeader)); |
Bobty | 17:080f2bed8b36 | 524 | return true; |
Bobty | 12:c14ffd4ec125 | 525 | |
Bobty | 12:c14ffd4ec125 | 526 | #endif |
Bobty | 6:46285c519af2 | 527 | } |
Bobty | 6:46285c519af2 | 528 | |
Bobty | 18:5de680c4cfcb | 529 | // Read file into cache |
Bobty | 15:0865fa4b046a | 530 | #ifdef SUPPORT_LOCAL_FILE_CACHE |
Bobty | 6:46285c519af2 | 531 | bool RdFileCacheEntry::readLocalFileIntoCache(char* fileName) |
Bobty | 6:46285c519af2 | 532 | { |
Bobty | 12:c14ffd4ec125 | 533 | #ifdef SUPPORT_LOCAL_FILESYSTEM |
Bobty | 12:c14ffd4ec125 | 534 | |
Bobty | 19:f67ac231b570 | 535 | RD_INFO("Reading into cache %s", fileName); |
Bobty | 6:46285c519af2 | 536 | LocalFileSystem local("local"); |
Bobty | 6:46285c519af2 | 537 | FILE* fp = fopen(fileName, "r"); |
Bobty | 6:46285c519af2 | 538 | if (fp == NULL) |
Bobty | 6:46285c519af2 | 539 | { |
Bobty | 19:f67ac231b570 | 540 | RD_WARN("Failed to open file"); |
Bobty | 6:46285c519af2 | 541 | return false; |
Bobty | 6:46285c519af2 | 542 | } |
Bobty | 21:2dfb56648b93 | 543 | RD_DBG("Seeking "); |
Bobty | 6:46285c519af2 | 544 | fseek(fp, 0, SEEK_END); |
Bobty | 6:46285c519af2 | 545 | _nFileLen = (int)ftell(fp); |
Bobty | 21:2dfb56648b93 | 546 | RD_DBG("Len %d ", _nFileLen); |
Bobty | 6:46285c519af2 | 547 | _pFileContent = new char[_nFileLen]; |
Bobty | 21:2dfb56648b93 | 548 | RD_DBG("Buf %08x ", _pFileContent); |
Bobty | 6:46285c519af2 | 549 | if (!_pFileContent) |
Bobty | 6:46285c519af2 | 550 | { |
Bobty | 19:f67ac231b570 | 551 | RD_WARN("Failed to allocate %lu", _nFileLen); |
Bobty | 6:46285c519af2 | 552 | fclose(fp); |
Bobty | 6:46285c519af2 | 553 | return false; |
Bobty | 6:46285c519af2 | 554 | } |
Bobty | 19:f67ac231b570 | 555 | RD_DBG("Allocated"); |
Bobty | 6:46285c519af2 | 556 | memset(_pFileContent, 0, _nFileLen); |
Bobty | 6:46285c519af2 | 557 | fseek(fp, 0, SEEK_SET); |
Bobty | 6:46285c519af2 | 558 | char* pMem = _pFileContent; |
Bobty | 6:46285c519af2 | 559 | char fileBuf[100]; |
Bobty | 6:46285c519af2 | 560 | int totCnt = 0; |
Bobty | 6:46285c519af2 | 561 | int rdCnt = 0; |
Bobty | 19:f67ac231b570 | 562 | RD_DBG("Reading"); |
Bobty | 6:46285c519af2 | 563 | while (true) |
Bobty | 6:46285c519af2 | 564 | { |
Bobty | 6:46285c519af2 | 565 | int toRead = _nFileLen - totCnt; |
Bobty | 6:46285c519af2 | 566 | if (toRead > sizeof(fileBuf)) |
Bobty | 6:46285c519af2 | 567 | toRead = sizeof(fileBuf); |
Bobty | 6:46285c519af2 | 568 | if (toRead <= 0) |
Bobty | 6:46285c519af2 | 569 | break; |
Bobty | 6:46285c519af2 | 570 | rdCnt = fread(fileBuf, sizeof(char), toRead, fp); |
Bobty | 6:46285c519af2 | 571 | if (rdCnt <= 0) |
Bobty | 6:46285c519af2 | 572 | break; |
Bobty | 19:f67ac231b570 | 573 | RD_DBG("Read %d tot %d of %d", rdCnt, totCnt, _nFileLen); |
Bobty | 6:46285c519af2 | 574 | memcpy(pMem, fileBuf, rdCnt); |
Bobty | 6:46285c519af2 | 575 | pMem += rdCnt; |
Bobty | 6:46285c519af2 | 576 | totCnt += rdCnt; |
Bobty | 6:46285c519af2 | 577 | } |
Bobty | 19:f67ac231b570 | 578 | RD_DBG("Done read"); |
Bobty | 6:46285c519af2 | 579 | fclose(fp); |
Bobty | 19:f67ac231b570 | 580 | RD_DBG("Success in caching %d bytes (read %d)", _nFileLen, totCnt); |
Bobty | 6:46285c519af2 | 581 | _bCacheValid = true; |
Bobty | 0:b5b4d07f7827 | 582 | return true; |
Bobty | 12:c14ffd4ec125 | 583 | #else |
Bobty | 12:c14ffd4ec125 | 584 | return false; |
Bobty | 12:c14ffd4ec125 | 585 | #endif |
Bobty | 0:b5b4d07f7827 | 586 | } |
Bobty | 0:b5b4d07f7827 | 587 | |
Bobty | 15:0865fa4b046a | 588 | #endif |
Bobty | 15:0865fa4b046a | 589 | |
Bobty | 18:5de680c4cfcb | 590 | // Extract arguments from command |
Bobty | 24:27800de38eab | 591 | bool RdWebServer::extractCmdArgs(char* buf, char* pCmdStr, int maxCmdStrLen, char* pArgStr, int maxArgStrLen, int& contentLen) |
Bobty | 1:75bb184de749 | 592 | { |
Bobty | 24:27800de38eab | 593 | contentLen = -1; |
Bobty | 1:75bb184de749 | 594 | *pCmdStr = '\0'; |
Bobty | 1:75bb184de749 | 595 | *pArgStr = '\0'; |
Bobty | 1:75bb184de749 | 596 | int cmdStrLen = 0; |
Bobty | 1:75bb184de749 | 597 | int argStrLen = 0; |
Bobty | 1:75bb184de749 | 598 | if (buf == NULL) |
Bobty | 1:75bb184de749 | 599 | return false; |
Bobty | 24:27800de38eab | 600 | // Check for Content-length header |
Bobty | 24:27800de38eab | 601 | char* contentLenText = "Content-Length:"; |
Bobty | 24:27800de38eab | 602 | char* pContLen = strstr(buf, contentLenText); |
Bobty | 24:27800de38eab | 603 | if (pContLen) |
Bobty | 24:27800de38eab | 604 | { |
Bobty | 24:27800de38eab | 605 | if (*(pContLen + strlen(contentLenText)) != '\0') |
Bobty | 24:27800de38eab | 606 | contentLen = atoi(pContLen + strlen(contentLenText)); |
Bobty | 24:27800de38eab | 607 | } |
Bobty | 24:27800de38eab | 608 | |
Bobty | 7:fe7c33f7fbb8 | 609 | // Check for first slash |
Bobty | 1:75bb184de749 | 610 | char* pSlash1 = strchr(buf, '/'); |
Bobty | 1:75bb184de749 | 611 | if (pSlash1 == NULL) |
Bobty | 1:75bb184de749 | 612 | return false; |
Bobty | 1:75bb184de749 | 613 | pSlash1++; |
Bobty | 7:fe7c33f7fbb8 | 614 | // Extract command |
Bobty | 1:75bb184de749 | 615 | while(*pSlash1) |
Bobty | 1:75bb184de749 | 616 | { |
Bobty | 1:75bb184de749 | 617 | if (cmdStrLen >= maxCmdStrLen-1) |
Bobty | 1:75bb184de749 | 618 | break; |
Bobty | 7:fe7c33f7fbb8 | 619 | if ((*pSlash1 == '/') || (*pSlash1 == ' ') || (*pSlash1 == '\n') || (*pSlash1 == '?') || (*pSlash1 == '&')) |
Bobty | 1:75bb184de749 | 620 | break; |
Bobty | 1:75bb184de749 | 621 | *pCmdStr++ = *pSlash1++; |
Bobty | 1:75bb184de749 | 622 | *pCmdStr = '\0'; |
Bobty | 1:75bb184de749 | 623 | cmdStrLen++; |
Bobty | 1:75bb184de749 | 624 | } |
Bobty | 1:75bb184de749 | 625 | if ((*pSlash1 == '\0') || (*pSlash1 == ' ') || (*pSlash1 == '\n')) |
Bobty | 1:75bb184de749 | 626 | return true; |
Bobty | 7:fe7c33f7fbb8 | 627 | // Now args |
Bobty | 1:75bb184de749 | 628 | *pSlash1++; |
Bobty | 1:75bb184de749 | 629 | while(*pSlash1) |
Bobty | 1:75bb184de749 | 630 | { |
Bobty | 1:75bb184de749 | 631 | if (argStrLen >= maxArgStrLen-1) |
Bobty | 1:75bb184de749 | 632 | break; |
Bobty | 1:75bb184de749 | 633 | if ((*pSlash1 == ' ') || (*pSlash1 == '\n')) |
Bobty | 1:75bb184de749 | 634 | break; |
Bobty | 1:75bb184de749 | 635 | *pArgStr++ = *pSlash1++; |
Bobty | 1:75bb184de749 | 636 | *pArgStr = '\0'; |
Bobty | 1:75bb184de749 | 637 | argStrLen++; |
Bobty | 1:75bb184de749 | 638 | } |
Bobty | 1:75bb184de749 | 639 | return true; |
Bobty | 1:75bb184de749 | 640 | } |
Bobty | 19:f67ac231b570 | 641 | |
Bobty | 24:27800de38eab | 642 | unsigned char* RdWebServer::getPayloadDataFromMsg(char* msgBuf, int msgLen, int& payloadLen) |
Bobty | 19:f67ac231b570 | 643 | { |
Bobty | 24:27800de38eab | 644 | payloadLen = -1; |
Bobty | 19:f67ac231b570 | 645 | char* ptr = strstr(msgBuf, "\r\n\r\n"); |
Bobty | 19:f67ac231b570 | 646 | if (ptr) |
Bobty | 24:27800de38eab | 647 | { |
Bobty | 24:27800de38eab | 648 | payloadLen = msgLen - (ptr+4-msgBuf); |
Bobty | 21:2dfb56648b93 | 649 | return (unsigned char*) (ptr+4); |
Bobty | 24:27800de38eab | 650 | } |
Bobty | 24:27800de38eab | 651 | return NULL; |
Bobty | 19:f67ac231b570 | 652 | } |
Bobty | 21:2dfb56648b93 | 653 | |
Bobty | 24:27800de38eab | 654 | int RdWebServer::getContentLengthFromMsg(char* msgBuf) |
Bobty | 21:2dfb56648b93 | 655 | { |
Bobty | 21:2dfb56648b93 | 656 | char* ptr = strstr(msgBuf, "Content-Length:"); |
Bobty | 21:2dfb56648b93 | 657 | if (ptr) |
Bobty | 21:2dfb56648b93 | 658 | { |
Bobty | 21:2dfb56648b93 | 659 | ptr += 15; |
Bobty | 21:2dfb56648b93 | 660 | int contentLen = atoi(ptr); |
Bobty | 21:2dfb56648b93 | 661 | if (contentLen >= 0) |
Bobty | 21:2dfb56648b93 | 662 | return contentLen; |
Bobty | 21:2dfb56648b93 | 663 | } |
Bobty | 21:2dfb56648b93 | 664 | return 0; |
Bobty | 21:2dfb56648b93 | 665 | } |