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