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Add MIME type handling to the Webserver project, so that files of different types (e.g. images) can be served out to HTTP clients.

This commit is contained in:
Dean Camera 2010-01-29 02:43:07 +00:00
parent e81a4c950f
commit fa3135d485
7 changed files with 102 additions and 32 deletions
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4
LUFA/Doxygen.conf
View File

@ -139,7 +139,7 @@ STRIP_FROM_INC_PATH =
# (but less readable) file names. This can be useful is your file systems
# doesn't support long names like on DOS, Mac, or CD-ROM.
SHORT_NAMES = YES
SHORT_NAMES = NO
# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen
# will interpret the first line (until the first dot) of a JavaDoc-style
@ -496,7 +496,7 @@ SHOW_DIRECTORIES = YES
# This will remove the Files entry from the Quick Index and from the
# Folder Tree View (if specified). The default is YES.
SHOW_FILES = YES
SHOW_FILES = NO
# Set the SHOW_NAMESPACES tag to NO to disable the generation of the
# Namespaces page.

4
LUFA/ManPages/ChangeLog.txt
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@ -17,10 +17,10 @@
* - Added MIDI event packing support to the MIDI Device and Host mode Class drivers, allowing for multiple MIDI events to
* sent or received in packed form in a single USB packet
* - Added new MIDI send buffer flush routines to the MIDI Device and Host mode Class drivers, to flush packed events
* - Added master mode hardware TWI driver
* - Added master mode hardware TWI driver for easy TWI peripheral control
* - Added ADC MUX masks for the standard ADC input channels on all AVR models with an ADC, altered demos to use these masks
* as on some models, the channel number is not identical to its single-ended ADC MUX mask
* - New Webserver project, a RNDIS host USB webserver using the open source uIP TCP/IP network stack
* - New Webserver project, a RNDIS host USB webserver using the open source uIP TCP/IP network stack and FatFS library
*
* <b>Changed:</b>
* - Slowed down software USART carried PDI programming in the AVRISP project to prevent transmission errors

6
LUFA/ManPages/MigrationInformation.txt
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@ -14,9 +14,9 @@
*
* <b>Non-USB Library Components</b>
* - Due to some ADC channels not being identical to their ADC MUX selection masks for single-ended conversions on some AVR models,
* the ADC driver now has explicit masks for each of the standard ADC channels. These masks should be used when calling the ADC
* functions to ensure proper operation across all AVR models. Note that the \ref ADC_SetupChannel() function is an exception, and
* should always be called with a channel number rather than a channel mask.
* the ADC driver now has explicit masks for each of the standard ADC channels (see \ref Group_ADC). These masks should be used
* when calling the ADC functions to ensure proper operation across all AVR models. Note that the \ref ADC_SetupChannel() function
* is an exception, and should always be called with a channel number rather than a channel mask.
*
* <b>Host Mode</b>
* - The MIDI Host Class driver send and receive routines now operate on packed events, where multiple MIDI events may be

2
LUFA/makefile
View File

@ -51,7 +51,7 @@ clean_list:
doxygen:
@echo Generating Library Documentation...
@doxygen Doxygen.conf
( cat Doxygen.conf ; echo "PROJECT_NUMBER=`grep LUFA_VERSION_STRING Version.h | cut -d'"' -f2`" ) | doxygen -
@echo Documentation Generation Complete.
clean_doxygen:

97
Projects/Webserver/Lib/HTTPServerApp.c
View File

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

12
Projects/Webserver/Lib/HTTPServerApp.h
View File

@ -39,6 +39,7 @@
/* Includes: */
#include <avr/pgmspace.h>
#include <string.h>
#include <ctype.h>
#include <LUFA/Version.h>
@ -50,11 +51,20 @@
enum Webserver_States_t
{
WEBSERVER_STATE_OpenRequestedFile, /** Currently opening requested file */
WEBSERVER_STATE_SendHeaders, /**< Currently sending HTTP headers to the client */
WEBSERVER_STATE_SendResponseHeader, /**< Currently sending HTTP response headers to the client */
WEBSERVER_STATE_SendMIMETypeHeader, /**< Currently sending HTTP MIME type header to the client */
WEBSERVER_STATE_SendData, /**< Currently sending HTTP page data to the client */
WEBSERVER_STATE_Closed, /**< Connection closed after all data sent */
};
/* Type Defines: */
/** Type define for a MIME type handler. */
typedef struct
{
char Extension[4]; /**< 3 or less character file extension */
char MIMEType[30]; /**< Appropriate MIME type to send when the extension is encountered */
} MIME_Type_t;
/* Macros: */
/** TCP listen port for incomming HTTP traffic */
#define HTTP_SERVER_PORT 80

1
Projects/Webserver/Lib/uip/conf/apps-conf.h
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@ -6,6 +6,7 @@
typedef struct
{
uint8_t CurrentState;
char FileName[13];
FIL FileToSend;
bool FileOpen;
} uip_tcp_appstate_t;