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.cpp
- Revision:
- 10:b4b9d4d5e5be
- Parent:
- 9:35668248199b
- Child:
- 11:cec51b430b20
diff -r 35668248199b -r b4b9d4d5e5be RdWebServer.cpp --- a/RdWebServer.cpp Sun Feb 22 11:54:18 2015 +0000 +++ b/RdWebServer.cpp Sun Feb 22 22:08:13 2015 +0000 @@ -182,13 +182,11 @@ const int HTTPD_MAX_FNAME_LENGTH = 127; char filename[HTTPD_MAX_FNAME_LENGTH+1]; -// pc.printf("Requesting file %s\n\r", inFileName); + pc.printf("Requesting file %s\n\r", inFileName); - char *lstchr = strrchr(inFileName, NULL) -1; - if ('/' == *lstchr) + if ((strlen(inFileName) > 0) && (inFileName[strlen(inFileName)-1] == '/')) { - pc.printf("Request directory %s%s\n", _pBaseWebFolder, inFileName); - *lstchr = 0; + pc.printf("Request directory %s%s\r\n", _pBaseWebFolder, inFileName); sprintf(filename, "%s%s", _pBaseWebFolder, inFileName); DIR *d = opendir(filename); if (d != NULL) { @@ -198,7 +196,7 @@ client.send(httpHeader,strlen(httpHeader)); struct dirent *p; while((p = readdir(d)) != NULL) { - pc.printf("%s\n", p->d_name); + pc.printf("%s\r\n", p->d_name); sprintf(httpHeader,"<li>%s</li>", p->d_name); client.send(httpHeader,strlen(httpHeader)); }