diff options
Diffstat (limited to 'lib/lufa/Projects/Webserver/Lib/HTTPServerApp.c')
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/HTTPServerApp.c | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/lib/lufa/Projects/Webserver/Lib/HTTPServerApp.c b/lib/lufa/Projects/Webserver/Lib/HTTPServerApp.c deleted file mode 100644 index ba5ce8b995..0000000000 --- a/lib/lufa/Projects/Webserver/Lib/HTTPServerApp.c +++ /dev/null @@ -1,284 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2017. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaims all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * Simple HTTP Webserver Application. When connected to the uIP stack, - * this will serve out files to HTTP clients on port 80. - */ - -#define INCLUDE_FROM_HTTPSERVERAPP_C -#include "HTTPServerApp.h" - -/** HTTP server response header, for transmission before the page contents. This indicates to the host that a page exists at the - * given location, and gives extra connection information. - */ -const char PROGMEM HTTP200Header[] = "HTTP/1.1 200 OK\r\n" - "Server: LUFA " LUFA_VERSION_STRING "\r\n" - "Connection: close\r\n" - "MIME-version: 1.0\r\n" - "Content-Type: "; - -/** HTTP server response header, for transmission before a resource not found error. This indicates to the host that the given - * URL is invalid, and gives extra error information. - */ -const char PROGMEM HTTP404Header[] = "HTTP/1.1 404 Not Found\r\n" - "Server: LUFA " LUFA_VERSION_STRING "\r\n" - "Connection: close\r\n" - "MIME-version: 1.0\r\n" - "Content-Type: text/plain\r\n\r\n" - "Error 404: File Not Found: /"; - -/** Default filename to fetch when a directory is requested */ -const char PROGMEM DefaultDirFileName[] = "index.htm"; - -/** Default MIME type sent if no other MIME type can be determined. */ -const char PROGMEM DefaultMIMEType[] = "text/plain"; - -/** List of MIME types for each supported file extension. */ -const MIME_Type_t MIMETypes[] = - { - {.Extension = "htm", .MIMEType = "text/html"}, - {.Extension = "jpg", .MIMEType = "image/jpeg"}, - {.Extension = "gif", .MIMEType = "image/gif"}, - {.Extension = "bmp", .MIMEType = "image/bmp"}, - {.Extension = "png", .MIMEType = "image/png"}, - {.Extension = "ico", .MIMEType = "image/x-icon"}, - {.Extension = "exe", .MIMEType = "application/octet-stream"}, - {.Extension = "gz", .MIMEType = "application/x-gzip"}, - {.Extension = "zip", .MIMEType = "application/zip"}, - {.Extension = "pdf", .MIMEType = "application/pdf"}, - }; - -/** FATFs structure to hold the internal state of the FAT driver for the Dataflash contents. */ -FATFS DiskFATState; - - -/** Initialization function for the simple HTTP webserver. */ -void HTTPServerApp_Init(void) -{ - /* Listen on port 80 for HTTP connections from hosts */ - uip_listen(HTONS(HTTP_SERVER_PORT)); - - /* Mount the Dataflash disk via FatFS */ - f_mount(0, &DiskFATState); -} - -/** uIP stack application callback for the simple HTTP webserver. This function must be called each time the - * TCP/IP stack needs a TCP packet to be processed. - */ -void HTTPServerApp_Callback(void) -{ - uip_tcp_appstate_t* const AppState = &uip_conn->appstate; - - if (uip_aborted() || uip_timedout() || uip_closed()) - { - /* Lock to the closed state so that no further processing will occur on the connection */ - AppState->HTTPServer.CurrentState = WEBSERVER_STATE_Closing; - AppState->HTTPServer.NextState = WEBSERVER_STATE_Closing; - } - - if (uip_connected()) - { - /* New connection - initialize connection state values */ - AppState->HTTPServer.CurrentState = WEBSERVER_STATE_OpenRequestedFile; - AppState->HTTPServer.NextState = WEBSERVER_STATE_OpenRequestedFile; - AppState->HTTPServer.FileOpen = false; - AppState->HTTPServer.ACKedFilePos = 0; - AppState->HTTPServer.SentChunkSize = 0; - } - - if (uip_acked()) - { - /* Add the amount of ACKed file data to the total sent file bytes counter */ - AppState->HTTPServer.ACKedFilePos += AppState->HTTPServer.SentChunkSize; - - /* Progress to the next state once the current state's data has been ACKed */ - AppState->HTTPServer.CurrentState = AppState->HTTPServer.NextState; - } - - if (uip_rexmit()) - { - /* Return file pointer to the last ACKed position */ - f_lseek(&AppState->HTTPServer.FileHandle, AppState->HTTPServer.ACKedFilePos); - } - - if (uip_rexmit() || uip_acked() || uip_newdata() || uip_connected() || uip_poll()) - { - switch (AppState->HTTPServer.CurrentState) - { - case WEBSERVER_STATE_OpenRequestedFile: - HTTPServerApp_OpenRequestedFile(); - break; - case WEBSERVER_STATE_SendResponseHeader: - HTTPServerApp_SendResponseHeader(); - break; - case WEBSERVER_STATE_SendData: - HTTPServerApp_SendData(); - break; - case WEBSERVER_STATE_Closing: - /* Connection is being terminated for some reason - close file handle */ - f_close(&AppState->HTTPServer.FileHandle); - AppState->HTTPServer.FileOpen = false; - - /* If connection is not already closed, close it */ - uip_close(); - - AppState->HTTPServer.CurrentState = WEBSERVER_STATE_Closed; - AppState->HTTPServer.NextState = WEBSERVER_STATE_Closed; - break; - } - } -} - -/** HTTP Server State handler for the Request Process state. This state manages the processing of incoming HTTP - * GET requests to the server from the receiving HTTP client. - */ -static void HTTPServerApp_OpenRequestedFile(void) -{ - uip_tcp_appstate_t* const AppState = &uip_conn->appstate; - char* const AppData = (char*)uip_appdata; - - /* No HTTP header received from the client, abort processing */ - if (!(uip_newdata())) - return; - - char* RequestToken = strtok(AppData, " "); - char* RequestedFileName = strtok(NULL, " "); - - /* Must be a GET request, abort otherwise */ - if (strcmp_P(RequestToken, PSTR("GET")) != 0) - { - uip_abort(); - return; - } - - /* Copy over the requested filename */ - strlcpy(AppState->HTTPServer.FileName, &RequestedFileName[1], sizeof(AppState->HTTPServer.FileName)); - - /* Determine the length of the URI so that it can be checked to see if it is a directory */ - uint8_t FileNameLen = strlen(AppState->HTTPServer.FileName); - - /* If the URI is a directory, append the default filename */ - if ((AppState->HTTPServer.FileName[FileNameLen - 1] == '/') || !(FileNameLen)) - { - strlcpy_P(&AppState->HTTPServer.FileName[FileNameLen], DefaultDirFileName, - (sizeof(AppState->HTTPServer.FileName) - FileNameLen)); - } - - /* Try to open the file from the Dataflash disk */ - AppState->HTTPServer.FileOpen = (f_open(&AppState->HTTPServer.FileHandle, AppState->HTTPServer.FileName, - (FA_OPEN_EXISTING | FA_READ)) == FR_OK); - - /* Lock to the SendResponseHeader state until connection terminated */ - AppState->HTTPServer.CurrentState = WEBSERVER_STATE_SendResponseHeader; - AppState->HTTPServer.NextState = WEBSERVER_STATE_SendResponseHeader; -} - -/** HTTP Server State handler for the HTTP Response Header Send state. This state manages the transmission of - * the HTTP response header to the receiving HTTP client. - */ -static void HTTPServerApp_SendResponseHeader(void) -{ - uip_tcp_appstate_t* const AppState = &uip_conn->appstate; - char* const AppData = (char*)uip_appdata; - - char* Extension = strpbrk(AppState->HTTPServer.FileName, "."); - bool FoundMIMEType = false; - - /* If the file isn't already open, it wasn't found - send back a 404 error response and abort */ - if (!(AppState->HTTPServer.FileOpen)) - { - /* Copy over the HTTP 404 response header and send it to the receiving client */ - strcpy_P(AppData, HTTP404Header); - strcat(AppData, AppState->HTTPServer.FileName); - uip_send(AppData, strlen(AppData)); - - AppState->HTTPServer.NextState = WEBSERVER_STATE_Closing; - return; - } - - /* Copy over the HTTP 200 response header and send it to the receiving client */ - strcpy_P(AppData, HTTP200Header); - - /* Check to see if a MIME type for the requested file's extension was found */ - if (Extension != NULL) - { - /* Look through the MIME type list, copy over the required MIME type if found */ - for (uint8_t i = 0; i < (sizeof(MIMETypes) / sizeof(MIMETypes[0])); i++) - { - if (strcmp(&Extension[1], MIMETypes[i].Extension) == 0) - { - strcat(AppData, MIMETypes[i].MIMEType); - FoundMIMEType = true; - break; - } - } - } - - /* Check if a MIME type was found and copied to the output buffer */ - if (!(FoundMIMEType)) - { - /* MIME type not found - copy over the default MIME type */ - strcat_P(AppData, DefaultMIMEType); - } - - /* Add the end-of-line terminator and end-of-headers terminator after the MIME type */ - strcat_P(AppData, PSTR("\r\n\r\n")); - - /* Send the MIME header to the receiving client */ - uip_send(AppData, strlen(AppData)); - - /* When the MIME header is ACKed, progress to the data send stage */ - AppState->HTTPServer.NextState = WEBSERVER_STATE_SendData; -} - -/** HTTP Server State handler for the Data Send state. This state manages the transmission of file chunks - * to the receiving HTTP client. - */ -static void HTTPServerApp_SendData(void) -{ - uip_tcp_appstate_t* const AppState = &uip_conn->appstate; - char* const AppData = (char*)uip_appdata; - - /* Get the maximum segment size for the current packet */ - uint16_t MaxChunkSize = uip_mss(); - - /* Read the next chunk of data from the open file */ - f_read(&AppState->HTTPServer.FileHandle, AppData, MaxChunkSize, &AppState->HTTPServer.SentChunkSize); - - /* Send the next file chunk to the receiving client */ - uip_send(AppData, AppState->HTTPServer.SentChunkSize); - - /* Check if we are at the last chunk of the file, if so next ACK should close the connection */ - if (MaxChunkSize != AppState->HTTPServer.SentChunkSize) - AppState->HTTPServer.NextState = WEBSERVER_STATE_Closing; -} - |