Akifumi Takahashi
The lib with which to make LPC1768 a simple HTTP server. This have not yet implemented. fopen() DOESN'T WORK after EthernetInterface::connect() is called as using mbed-os 5.4~. See also https://os.mbed.com/questions/80658/HardFault-occurs-when-fopen-is-called-af/ or https://github.com/ARMmbed/mbed-os/issues/6578 and https://github.com/ARMmbed/mbed-os/issues/6624
Fork of
HTTP_SERVER
by 
Akifumi Takahashi
Diff: HTTP_SERVER.cpp
- Revision:
- 0:cc483bea4fe3
- Child:
- 1:3a1fe94c6e42
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/HTTP_SERVER.cpp Tue Feb 16 10:59:31 2016 +0000
@@ -0,0 +1,208 @@
+#include "HTTP_SERVER.h"
+#define DEBUG
+HttpServer::HttpServer()
+{
+ keep_alive = (false);
+ listening_flag = (false);
+ req_buf[0] = '\0';
+}
+
+HttpServer::~HttpServer()
+{
+}
+
+bool HttpServer::init()
+{
+
+// Ethernet Initialization
+ if(eth.init()) {
+ printf("Error!@EthernetInterface::init()\r\n");
+ return false;
+ }
+ // Ethernet Connecting setup
+ if(eth.connect()) {
+ printf("Error!@EthernetInterface::connect()\r\n");
+ return false;
+ } else {
+ printf("IP Address is %s\r\n", eth.getIPAddress());
+ }
+ // TCP Socket setup
+ // To open Server-side PORT
+ if(tcpsvr.bind(TCP_PORT)< 0) {
+ printf("Error!@TCPSocketServer::bind()\r\n");
+ return false;
+ } else {
+ printf("TCP Server has bounden!\r\n");
+ }
+ // Server start listening Request from a web browser.
+ if(tcpsvr.listen(1) < 0) {
+ printf("tcp server listen failed.\r\n");
+ return false;
+ } else {
+ listening_flag = true;
+ printf("tcp server is listening...\r\n");
+ }
+
+ return true;
+}
+
+bool HttpServer::run()
+{
+ DigitalOut led1(LED1);
+ DigitalOut led2(LED1);
+
+ while (listening_flag) {
+ led1 = true;
+ // blocking mode (never timeout)
+ // waiting client connection
+ printf("\r\nwait connection\r\n");
+ if(tcpsvr.accept(tcpcon) < 0) {
+ printf("failed to accept connection.\r\n");
+ return -1;
+ } else {
+ printf("connection success!\r\nIP: %s\r\n",tcpcon.get_address());
+ led2 = true;
+ }
+ //while(client.is_connected()) {
+ while(tcpcon.is_connected()) {
+#ifdef DEBUG
+ printf("being connected\r\n");
+#endif
+ char buffer[1024] = {0};
+ char* httpmethod = NULL;
+ char* filepath = NULL;
+ char* http_ver = NULL;
+ char* header_field_name = NULL;
+ char* header_field_val = NULL;
+ //
+ // Request Analysis
+ //
+#ifdef DEBUG
+ printf("debug\r\n");
+#endif
+ switch(tcpcon.receive(buffer, 1023)) {
+ case 0:
+ printf("recieved buffer is empty.\r\n");
+ msger.setStatusLine(400, "No Request");
+ httpmethod = NULL;
+ filepath = NULL;
+ http_ver = NULL;
+ break;
+ case -1:
+ printf("failed to read data from client.\r\n");
+ msger.setStatusLine(500, "Internal Server Error");
+ httpmethod = NULL;
+ filepath = NULL;
+ http_ver = NULL;
+ break;
+ default:
+ printf("Recieved Data: %d\r\n\r\n%.*s\r\n",strlen(buffer),strlen(buffer),buffer);
+ // get HTTP method
+ httpmethod = strtok(buffer," ");
+ // get File path
+ filepath = strtok(NULL, " ");
+ // get HTTP version
+ http_ver = strtok(NULL, "\r\n");
+#ifdef DEBUG
+ printf("httpmethod: %s\r\n", httpmethod);
+ printf("file path: %s\r\n", filepath);
+ printf("http ver : %s\r\n", http_ver);
+#endif
+ break;
+ }
+#ifdef DEBUG
+ printf("debug before response\r\n");
+#endif
+ //
+ // Response
+ //
+ if (strcmp(httpmethod,"GET") == 0 ) {
+ printf("GET request incomming.\r\n");
+
+ // file calibration
+#ifdef DEBUG
+ printf("file opening\r\n");
+#endif
+ fhandl.open(filepath,"rb");
+ if(fhandl.arrival()) {
+ msger.setStatusLine(200, "OK");
+ if(msger.setHeaderField("Content-Length", fhandl.getFileSize()))printf("buffer over flow");
+ if(msger.setHeaderField("Connection", "keep-alive"))printf("buffer over flow");
+ } else {
+ if(msger.setStatusLine(404, "NOT FOUND"))printf("buffer over flow");
+ if(msger.setHeaderField("Connection", "close"))printf("buffer over flow");
+#ifdef DEBUG
+ printf("NOT FOUND\r\n");
+#endif
+ }
+ if(! ( strcmp(fhandl.getSuffix(), "htm" ) &&
+ strcmp(fhandl.getSuffix(), "HTM" ) &&
+ strcmp(fhandl.getSuffix(), "html") &&
+ strcmp(fhandl.getSuffix(), "HTML") )) {
+ if(msger.setHeaderField("Content-Type", "text/html"))printf("buffer over flow");
+ } else if (!strcmp(fhandl.getSuffix(), "ico" ) ) {
+ if(msger.setHeaderField("Content-Type", "image/png"))printf("buffer over flow");
+ } else {
+ msger.setStatusLine(406, "not acceptable");
+ }
+
+ // Connection timeout field
+ if(msger.setHeaderField("Keep-Alive", "timeouit=15"))printf("buffer over flow");
+/* // Apply request header field to response header field
+ do {
+ //strtok(NULL, "\r\n");
+ header_field_name = strtok(NULL, ":");
+ header_field_name++;
+ //strtok(NULL, " ");
+ header_field_val = strtok(NULL, "\r\n");
+ header_field_val++;
+#ifdef DEBUG
+ printf("header_field_name adr: %d %s\r\n", header_field_name - 1, header_field_name);
+ printf("header_field_val adr: %d %s\r\n", header_field_val - 1, header_field_val);
+#endif
+ if(header_field_name - 1 != NULL) {
+ //if(strcmp(header_field_name,"Connection") == 0) {
+ // if(msger.setHeaderField(header_field_name, "close"))printf("buffer over flow");
+ //} else {
+ if(msger.setHeaderField(header_field_name, header_field_val))printf("buffer over flow");
+ //}
+ } else {
+ break;
+ }
+ } while(1);
+*/
+#ifdef DEBUG
+ //printf("status code : %d\r\n", status_code);
+ //printf("content type: %s\r\n", content_type);
+#endif
+
+ // send response
+ msger.sendHTTPResponse(tcpcon, fhandl);
+
+ //file close
+#ifdef DEBUG
+ if(
+#endif
+ fhandl.close()
+#ifndef DEBUG
+ ;
+#endif
+#ifdef DEBUG
+ == 0)
+ printf("file has closed\r\n");
+ else if(EOF)
+ printf("failed to close the file\r\n");
+#endif
+ msger.resetHeader();
+ printf("echo back done.\r\n");
+ }
+ printf("Response to Request has done\r\n");
+ }
+ printf("close connection.\r\ntcp server is listening...\r\n");
+ tcpcon.close();
+ tcpsvr.close();
+ led2 = false;
+ }
+ led1 = false;
+ return 0;
+}
\ No newline at end of file