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.h@1:75bb184de749, 2013-09-19 (annotated)
- Committer:
- Bobty
- Date:
- Thu Sep 19 12:06:18 2013 +0000
- Revision:
- 1:75bb184de749
- Parent:
- 0:b5b4d07f7827
- Child:
- 2:9d8793c23b46
Added code to support commands - still a lot of test code in place though
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Bobty | 0:b5b4d07f7827 | 1 | #ifndef RD_WEB_SERVER |
Bobty | 0:b5b4d07f7827 | 2 | #define RD_WEB_SERVER |
Bobty | 0:b5b4d07f7827 | 3 | |
Bobty | 1:75bb184de749 | 4 | #include <vector> |
Bobty | 0:b5b4d07f7827 | 5 | |
Bobty | 0:b5b4d07f7827 | 6 | #include "mbed.h" |
Bobty | 0:b5b4d07f7827 | 7 | #include "EthernetInterface.h" |
Bobty | 0:b5b4d07f7827 | 8 | |
Bobty | 1:75bb184de749 | 9 | typedef void (*CmdCallbackType)(char* argStr); |
Bobty | 1:75bb184de749 | 10 | |
Bobty | 1:75bb184de749 | 11 | class RdWebServerCmdDef |
Bobty | 1:75bb184de749 | 12 | { |
Bobty | 1:75bb184de749 | 13 | public: |
Bobty | 1:75bb184de749 | 14 | RdWebServerCmdDef(char* pStr, CmdCallbackType callback) |
Bobty | 1:75bb184de749 | 15 | { |
Bobty | 1:75bb184de749 | 16 | _pCmdStr = pStr; |
Bobty | 1:75bb184de749 | 17 | _callback = callback; |
Bobty | 1:75bb184de749 | 18 | }; |
Bobty | 1:75bb184de749 | 19 | char* _pCmdStr; |
Bobty | 1:75bb184de749 | 20 | CmdCallbackType _callback; |
Bobty | 1:75bb184de749 | 21 | }; |
Bobty | 1:75bb184de749 | 22 | |
Bobty | 0:b5b4d07f7827 | 23 | class RdWebServer |
Bobty | 0:b5b4d07f7827 | 24 | { |
Bobty | 0:b5b4d07f7827 | 25 | public : |
Bobty | 0:b5b4d07f7827 | 26 | |
Bobty | 0:b5b4d07f7827 | 27 | RdWebServer(); |
Bobty | 0:b5b4d07f7827 | 28 | virtual ~RdWebServer(); |
Bobty | 0:b5b4d07f7827 | 29 | |
Bobty | 0:b5b4d07f7827 | 30 | bool init(int port, DigitalOut* pStatusLed); |
Bobty | 0:b5b4d07f7827 | 31 | void run(); |
Bobty | 0:b5b4d07f7827 | 32 | bool isListening() |
Bobty | 0:b5b4d07f7827 | 33 | { |
Bobty | 0:b5b4d07f7827 | 34 | return _serverIsListening; |
Bobty | 0:b5b4d07f7827 | 35 | }; |
Bobty | 0:b5b4d07f7827 | 36 | |
Bobty | 1:75bb184de749 | 37 | void addCommand(char* pCmdStr, CmdCallbackType callback); |
Bobty | 1:75bb184de749 | 38 | |
Bobty | 0:b5b4d07f7827 | 39 | private : |
Bobty | 0:b5b4d07f7827 | 40 | int _port; |
Bobty | 0:b5b4d07f7827 | 41 | DigitalOut* _pStatusLed; |
Bobty | 0:b5b4d07f7827 | 42 | TCPSocketServer _socketSrv; |
Bobty | 0:b5b4d07f7827 | 43 | bool _serverIsListening; |
Bobty | 1:75bb184de749 | 44 | std::vector<RdWebServerCmdDef*> _commands; |
Bobty | 1:75bb184de749 | 45 | bool extractCmdArgs(char* buf, char* pCmdStr, int maxCmdStrLen, char* pArgStr, int maxArgStrLen); |
Bobty | 1:75bb184de749 | 46 | |
Bobty | 1:75bb184de749 | 47 | |
Bobty | 0:b5b4d07f7827 | 48 | }; |
Bobty | 0:b5b4d07f7827 | 49 | |
Bobty | 0:b5b4d07f7827 | 50 | #endif |