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@ -41,20 +41,42 @@
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*/
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char PROGMEM HTTP200Header[] = "HTTP/1.1 200 OK\r\n"
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"Server: LUFA RNDIS\r\n"
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"Content-type: text/html\r\n"
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"Connection: close\r\n\r\n";
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"Connection: close\r\n"
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"MIME-version: 1.0\r\n"
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"Content-Type: ";
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/** HTTP server response header, for transmission before a resource not found error. This indicates to the host that the given
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* given URL is invalid, and gives extra error information.
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*/
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char PROGMEM HTTP404Header[] = "HTTP/1.1 404 Not Found\r\n"
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"Server: LUFA RNDIS\r\n"
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"Connection: close\r\n\r\n"
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"The requested file was not found.";
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"Connection: close\r\n"
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"MIME-version: 1.0\r\n"
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"Content-Type: text/plain\r\n\r\n"
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"Error 404: File Not Found";
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/** Default MIME type sent if no other MIME type can be determined */
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char PROGMEM DefaultMIMEType[] = "text/plain";
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/** List of MIME types for each supported file extension - must be terminated with \ref END_OF_MIME_LIST entry. */
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MIME_Type_t PROGMEM MIMETypes[] =
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{
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{.Extension = "htm", .MIMEType = "text/html"},
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{.Extension = "jpg", .MIMEType = "image/jpeg"},
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{.Extension = "gif", .MIMEType = "image/gif"},
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{.Extension = "bmp", .MIMEType = "image/bmp"},
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{.Extension = "png", .MIMEType = "image/png"},
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{.Extension = "exe", .MIMEType = "application/octet-stream"},
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{.Extension = "gz", .MIMEType = "application/x-gzip"},
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{.Extension = "ico", .MIMEType = "image/x-icon"},
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{.Extension = "zip", .MIMEType = "application/zip"},
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{.Extension = "pdf", .MIMEType = "application/pdf"},
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};
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/** FAT Fs structure to hold the internal state of the FAT driver for the dataflash contents. */
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FATFS DiskFATState;
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/** Initialization function for the simple HTTP webserver. */
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void WebserverApp_Init(void)
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{
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@ -85,7 +107,8 @@ void WebserverApp_Callback(void)
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}
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else if (uip_closed())
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{
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/* Completed connection, just return */
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AppState->CurrentState = WEBSERVER_STATE_Closed;
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return;
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}
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else if (uip_connected())
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@ -107,35 +130,33 @@ void WebserverApp_Callback(void)
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break;
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}
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char FileName[13];
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/* Copy over the requested filename from the GET request */
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for (uint8_t i = 0; i < (sizeof(FileName) - 1); i++)
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/* Copy over the requested filename from the GET request as all-lowercase */
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for (uint8_t i = 0; i < (sizeof(AppState->FileName) - 1); i++)
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{
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FileName[i] = AppData[sizeof("GET ") + i];
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AppState->FileName[i] = tolower(AppData[sizeof("GET ") + i]);
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if (FileName[i] == ' ')
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if (AppState->FileName[i] == ' ')
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{
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FileName[i] = 0x00;
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AppState->FileName[i] = 0x00;
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break;
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}
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}
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/* Ensure requested filename is null-terminated */
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FileName[(sizeof(FileName) - 1)] = 0x00;
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AppState->FileName[(sizeof(AppState->FileName) - 1)] = 0x00;
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/* If no filename specified, assume the default of INDEX.HTM */
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if (FileName[0] == 0x00)
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strcpy(FileName, "INDEX.HTM");
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/* If no filename specified, assume the default of index.htm */
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if (AppState->FileName[0] == 0x00)
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strcpy(AppState->FileName, "index.htm");
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/* Try to open the file from the Dataflash disk */
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AppState->FileOpen = (f_open(&AppState->FileToSend, FileName, FA_OPEN_EXISTING | FA_READ) == FR_OK);
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AppState->FileOpen = (f_open(&AppState->FileToSend, AppState->FileName, FA_OPEN_EXISTING | FA_READ) == FR_OK);
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AppState->CurrentState = WEBSERVER_STATE_SendHeaders;
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AppState->CurrentState = WEBSERVER_STATE_SendResponseHeader;
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}
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break;
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case WEBSERVER_STATE_SendHeaders:
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case WEBSERVER_STATE_SendResponseHeader:
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/* Determine what HTTP header should be sent to the client */
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if (AppState->FileOpen)
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{
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@ -150,6 +171,44 @@ void WebserverApp_Callback(void)
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uip_send(AppData, AppDataSize);
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AppState->CurrentState = WEBSERVER_STATE_SendMIMETypeHeader;
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break;
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case WEBSERVER_STATE_SendMIMETypeHeader:
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/* File must have been found and opened for MIME header to be sent */
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if (AppState->FileOpen)
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{
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char* Extension = strpbrk(AppState->FileName, ".");
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/* Check to see if a file extension was found for the requested filename */
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if (Extension != NULL)
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{
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/* Look through the MIME type list, copy over the required MIME type if found */
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for (int i = 0; i < (sizeof(MIMETypes) / sizeof(MIMETypes[0])); i++)
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{
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if (strcmp_P(&Extension[1], MIMETypes[i].Extension) == 0)
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{
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AppDataSize = strlen_P(MIMETypes[i].MIMEType);
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strncpy_P(AppData, MIMETypes[i].MIMEType, AppDataSize);
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break;
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}
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}
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}
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/* Check if a MIME type was found and copied to the output buffer */
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if (!(AppDataSize))
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{
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/* MIME type not found - copy over the default MIME type */
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AppDataSize = strlen_P(DefaultMIMEType);
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strncpy_P(AppData, DefaultMIMEType, AppDataSize);
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}
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/* Add the end-of line terminator and end-of-headers terminator after the MIME type */
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strncpy(&AppData[AppDataSize], "\r\n\r\n", sizeof("\r\n\r\n"));
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AppDataSize += (sizeof("\r\n\r\n") - 1);
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uip_send(AppData, AppDataSize);
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}
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AppState->CurrentState = WEBSERVER_STATE_SendData;
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break;
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case WEBSERVER_STATE_SendData:
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Dean Camera
15 years ago