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.
Diff: RdWebServer.h
- Revision:
- 4:6afb3bbf20a4
- Parent:
- 3:594136d34a32
- Child:
- 6:46285c519af2
diff -r 594136d34a32 -r 6afb3bbf20a4 RdWebServer.h --- a/RdWebServer.h Fri Oct 04 10:36:57 2013 +0000 +++ b/RdWebServer.h Mon Feb 02 16:36:14 2015 +0000 @@ -40,7 +40,7 @@ public: static const int CMD_LOCALFILE = 1; static const int CMD_CALLBACK = 2; - static const int CMD_SDCARDFILE = 3; + static const int CMD_SDORUSBFILE = 3; RdWebServerCmdDef(char* pStr, int cmdType, CmdCallbackType callback, char* substFileName, bool bCacheIfPossible) { _pCmdStr = pStr; @@ -68,7 +68,7 @@ RdWebServer(); virtual ~RdWebServer(); - bool init(int port, DigitalOut* pStatusLed); + bool init(int port, DigitalOut* pStatusLed, char* pBaseWebFolder); void run(); bool isListening() { @@ -85,6 +85,7 @@ std::vector<RdWebServerCmdDef*> _commands; std::vector<RdFileCacheEntry*> _cachedFiles; bool extractCmdArgs(char* buf, char* pCmdStr, int maxCmdStrLen, char* pArgStr, int maxArgStrLen); + char* _pBaseWebFolder; void handleLocalFileRequest(char* cmdStr, char* argStr, TCPSocketConnection* pClient, char* httpHeader, bool bCacheIfPossible); void handleSDFileRequest(char* cmdStr, char* argStr, TCPSocketConnection* pClient, char* httpHeader);